Download  Print this page

GE L60 Instructions Manual

Line phase comparison system.
Hide thumbs
   
1
2
Table of Contents
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768

Advertisement

GE
Grid Solutions
L60
Line Phase Comparison System
Instruction Manual
Product version: 7.6x
GE publication code: 1601-0082-AF2 (GEK-131003A)
E83849
LISTED
IND.CONT. EQ.
52TL
1601-0082-AF2

Advertisement

Table of Contents

   Also See for GE L60

   Related Manuals for GE L60

   Summary of Contents for GE L60

  • Page 1 Grid Solutions Line Phase Comparison System Instruction Manual Product version: 7.6x GE publication code: 1601-0082-AF2 (GEK-131003A) E83849 LISTED IND.CONT. EQ. 52TL 1601-0082-AF2...
  • Page 2 The contents of this manual are the property of GE Multilin Inc. This documentation is furnished on license and may not be reproduced in whole or in part without the permission of GE Multilin. The content of this manual is for informational use only and is subject to change without notice.
  • Page 3: Table Of Contents

    Approvals ..........................2-36 2.5.16 Maintenance.........................2-36 3 INSTALLATION Unpack and inspect ....................3-1 Panel cutouts ......................3-2 3.2.1 Horizontal units ........................3-2 3.2.2 Vertical units ........................... 3-6 3.2.3 Rear terminal layout ......................3-11 Wiring........................3-14 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 4 4.1.5 EnerVista main window .....................4-3 4.1.6 Protection summary window..................4-4 4.1.7 Settings templates........................4-5 4.1.8 Secure and lock FlexLogic equations ................4-9 4.1.9 Settings file traceability....................4-12 Front panel interface ...................4-15 4.2.1 Front panel..........................4-15 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 5 Installation ..........................5-142 System setup.......................5-142 5.4.1 AC inputs ..........................5-142 5.4.2 Power system........................5-144 5.4.3 Signal sources........................5-145 5.4.4 Breakers..........................5-148 5.4.5 Disconnect switch control...................5-153 5.4.6 FlexCurves...........................5-158 FlexLogic ......................5-165 5.5.1 FlexLogic operands ......................5-165 5.5.2 FlexLogic rules ........................5-179 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 6 5.10.3 Force contact inputs ..................... 5-380 5.10.4 Force contact outputs ....................5-380 6 ACTUAL VALUES Actual values menu....................6-1 Front panel.......................6-3 6.2.1 Enhanced and standard front panels .................6-3 6.2.2 Graphical front panel ......................6-4 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 7 Relay maintenance......................7-3 7.1.5 Security ............................. 7-4 Targets menu......................7-5 7.2.1 Target messages ........................7-5 7.2.2 Relay self-tests ........................7-6 8 APPLICATION OF 87PC phase comparison element................ 8-1 SETTINGS 8.1.1 Overview........................... 8-1 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 8 10.5 Copy settings to other device ................10-7 10.6 Compare settings ....................10-7 10.6.1 Compare against defaults ..................... 10-7 10.6.2 Compare two devices ...................... 10-8 10.7 Back up and restore settings ................10-8 10.7.1 Back up settings .........................10-8 viii L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 9 FlexAnalog items ....................A-1 OPERANDS B RADIUS SERVER RADIUS server configuration ................B-1 CONFIGURATION C COMMAND LINE Command line interface ..................C-1 INTERFACE D MISCELLANEOUS Warranty .........................D-1 Revision history ......................D-1 ABBREVIATIONS INDEX L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 10 TABLE OF CONTENTS L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 11: Introduction

    Ensure that the control power applied to the device, the alternating current (AC), and voltage input match the ratings specified on the relay nameplate. Do not apply current or voltage in excess of the specified limits. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 12: For Further Assistance

    When contacting GE by e-mail, optionally include a device information file, which is generated in the EnerVista software by clicking the Service Report button. The service report also can be generated in the field, for example with a USB cable connected between the graphical front panel and a computer, and the Device Setup configured for the USB connection.
  • Page 13 CHAPTER 1: INTRODUCTION FOR FURTHER ASSISTANCE Figure 1-1: Generate service report in EnerVista software L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 14 FOR FURTHER ASSISTANCE CHAPTER 1: INTRODUCTION L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 15: Product Description

    2.1 Product description The L60 Line Phase Comparison System is part of the Universal Relay (UR) series of products. It provides a simple phase- comparison principle successfully employed by analog and static relays for many years, along with the significant advantages of a modern microprocessor-based relay.
  • Page 16: Description

    Parallel Redundancy Protocol (PRP) of IEC 62439-3 (clause 4, 2012) when purchased as an option. Secure Routable GOOSE (R-GOOSE) is supported with software options. Settings and actual values can be accessed from the front panel or EnerVista software. The figures show typical two-terminal and three-terminal applications. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 17 PRODUCT DESCRIPTION Figure 2-1: 87PC communications The L60 uses flash memory technology that allows field upgrading as new features are added. Firmware and software are upgradable. The following single-line diagram illustrates the relay functionality using American National Standards Institute (ANSI) device numbers.
  • Page 18 Contact Inputs (up to 120) Modbus User Map Contact Outputs (up to 72) Non-Volatile Latches Control Pushbuttons Non-Volatile Selector Switch CT Failure Detector Open Breaker Echo CyberSentry™ Security Open Pole Detector Data Logger Oscillography L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 19: Security

    When entering a settings or command password via EnerVista or any serial interface, the user must enter the corresponding connection password. If the connection is to the back of the L60, the remote password is used. If the connection is to a front panel port, the local password applies. (These two local and remote password settings are not shown the figure.)
  • Page 20 One role of one type is allowed to be logged in at a time. For example, one Operator can be logged in but not a second Operator at the same time. This prevents subsets of settings from being changed at the same time. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 21 |--------------- Demand |--------------- User-Programmable LEDs |--------------- User-Programmable Self Tests |--------------- Control Pushbuttons RW |--------------- User-Programmable Pushbuttons |--------------- Flex state Parameters |--------------- User-Definable Displays |--------------- Direct I/O |--------------- Teleprotection |--------------- Installation |---------- System Setup L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 22 RW = read and write access R = read access Supervisor = RW (default), Administrator = R (default), Administrator = RW (only if Supervisor role is disabled) NA = the permission is not enforced by CyberSentry security L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 23: Order Codes

    Module options are specified at the time of ordering. The L60 is specified with either one CT/VT module (8P) or two CT/VT modules (8F and 8P). When the L60 is applied in two- breaker configurations (such as breaker-and-a-half or ring configurations), the currents from the two CTs are summed internally within the relay or externally.
  • Page 24 Channel 1 - G.703; Channel 2 - 820 nm, multimode Channel 1 - G.703; Channel 2 - 1300 nm, multimode Channel 1 - G.703; Channel 2 - 1300 nm, single-mode ELED 820 nm, multimode, LED, 2 Channels 2-10 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 25 7Q Channel 1 - G.703; Channel 2 - 1300 nm, single-mode Laser G.703, 1 Channel G.703, 2 Channels RS422, 1 Channel 7W RS422, 2 Channels Table 2-5: L60 order codes for reduced-size vertical units - * ** - * * * - F ** - H **...
  • Page 26: Replacement Modules

    Replacement modules can be ordered separately. When ordering a replacement CPU module or front panel, provide the serial number of your existing unit. Not all replacement modules apply to the L60 relay. The modules specified in the order codes for the L60 are available as replacement modules for the L60.
  • Page 27 2 Form-A outputs, 1 Form-C output, 2 Form-A (no monitoring) latching outputs, 8 contact inputs 30 Contact inputs - pin terminals (max 4 modules) 18 Form-A (no monitoring) outputs - pin terminals (max 4 modules) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-13...
  • Page 28: Signal Processing

    (when applicable), and auxiliary voltages. The 2.4 kHz cut-off frequency applies to both 50 Hz and 60 Hz applications and fixed in the hardware, and thus is not dependent on the system nominal frequency setting. 2-14 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 29 The analog/digital converter has the following ranges of AC signals: Voltages: Eq. 2-1 Currents: Eq. 2-2 Current harmonics are estimated based on raw samples with the use of the full-cycle Fourier filter. Harmonics 2nd through 25th are estimated. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-15...
  • Page 30: Specifications

    ICD/CID/IID files, and so on), IEEE 1588 (IEEE C37.238 power profile) based time synchronization, CyberSentry (advanced cyber security), the Parallel Redundancy Protocol (PRP), IEC 60870-5-103, and so on. 2.5 Specifications Specifications are subject to change without notice. 2-16 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 31: Protection Elements

    30 to 90° in steps of 1 Right blinder (Quad only): Reach: 0.02 to 500 Ω in steps of 0.01 Characteristic angle: 60 to 90° in steps of 1 Left Blinder (Quad only): L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-17...
  • Page 32 5 to 25 cycles in steps of 1 Voltage supervision pickup (series compensation applications): 0 to 5.000 pu in steps of 0.001 Operation time: 1 to 1.5 cycles (typical) Reset time: 1 power cycle (typical) 2-18 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 33 > 2.0 × CT: ±1.5% of reading > 2.0 × CT rating Curve shapes: IEEE Moderately/Very/Extremely Inverse; IEC (and BS) A/B/C and Short Inverse; GE IAC Inverse, Short/Very/ Extremely Inverse; I t; FlexCurves™ (programmable); Definite Time (0.01 s base curve) Curve multiplier: Time Dial = 0.00 to 600.00 in steps of 0.01...
  • Page 34 0 to 360° in steps of 1 Minimum power: 0.001 to 1.200 pu in steps of 0.001 Pickup level accuracy: ±1% or ±0.0025 pu, whichever is greater Hysteresis: 3% or 0.001 pu, whichever is greater 2-20 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 35 Curve timing accuracy at >1.1 pickup: ±3.5% of operate time or ±1 cycle (whichever is greater) from pickup to operate Operate time: <30 ms at 1.10 pickup at 60 Hz AUXILIARY OVERVOLTAGE Pickup level: 0.004 to 3.000 pu in steps of 0.001 Dropout level: 97 to 98% of pickup L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-21...
  • Page 36 Max voltage difference: 0 to 400000 V in steps of 1 ° Max angle difference: 0 to 100 in steps of 1 Max freq. difference: 0.00 to 2.00 Hz in steps of 0.01 2-22 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 37 Current pickup level: 0.020 to 30.000 pu in steps of 0.001 Line capacitive reactances (X 300.0 to 9999.9 sec. Ω in steps of 0.1 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-23...
  • Page 38: User-programmable Elements

    0.1 to 50.0% in steps of 0.1 Delta dt: 20 ms to 60 days Pickup and dropout delay: 0.000 to 65.535 s in steps of 0.001 NON-VOLATILE LATCHES Type: set-dominant or reset-dominant Number: 16 (individually programmed) 2-24 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 39: Monitoring

    Dropout delay: 0.000 to 999999.999 s in steps of 0.001 Timing accuracy: ±3% or ±4 ms, whichever is greater 2.5.3 Monitoring OSCILLOGRAPHY Maximum records: Sampling rate: 64 samples per power cycle L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-25...
  • Page 40: Metering

    ±1.0% of reading at –1.0 ≤ PF < –0.8 and 0.8 < PF ≤ 10 REACTIVE POWER (VARS) Accuracy at 0.1 to 1.5 x CT rating and 0.8 to 1.2 x VT rating: ±1.0% of reading at –0.2 ≤ PF ≤ 0.2 2-26 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 41: Inputs

    64 samples per power cycle Tracking frequency range: 20 to 70 Hz CONTACT INPUTS Dry contacts: 1000 Ω maximum Wet contacts: 300 V DC maximum Selectable thresholds: 17 V, 33 V, 84 V, 166 V L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-27...
  • Page 42 Responding to: Rate of unreturned messages in the ring configuration Monitoring message count: 10 to 10000 in steps of 1 Alarm threshold: 1 to 1000 in steps of 1 TELEPROTECTION Input points: 2-28 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 43: Power Supply

    125 V 0.3 A 250 V 0.2 A Operate time: < 4 ms Contact material: silver alloy LATCHING RELAY Make and carry for 0.2 s: 30 A as per ANSI C37.90 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-29...
  • Page 44 100 Ω, 2 W SOLID-STATE OUTPUT RELAY Operate and release time: <100 µs Maximum voltage: 265 V DC Maximum leakage current in off state (excluding voltage monitor circuit current): 100 µA 2-30 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 45: Communication Protocols

    Front port: USB 2.0 type B RS485 1 rear port: up to 115 kbps, Modbus RTU, DNP 3, IEC 60870-5-103 Typical distance: 1200 m Isolation: 2 kV, isolated together at 36 Vpk L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-31...
  • Page 46: Inter-relay Communications

    Cable type Transmit power Received Power budget Maximum sensitivity optical input power 820 nm, Multimode 62.5/125 μm -16 dBm -32 dBm 16 dBm -8 dBm 50/125 μm -20 dBm 12 dBm 2-32 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 47 Typical distances listed are based on the following assumptions for system loss. As actual losses vary from one installation to another, the distance covered by your system can vary. CONNECTOR LOSSES (Total of both ends) ST connector: 0.7 dB (each) FIBER LOSSES 820 nm multimode: 3 dB/km L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-33...
  • Page 48: Cybersentry Security

    –40 to 60°C; the LCD contrast can be impaired at temperatures less than –20°C HUMIDITY Humidity: operating up to 95% (non-condensing) at 55°C (as per IEC60068-2-30 variant 1, 6 days) OTHER Altitude: 2000 m (maximum) Pollution degree: 2-34 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 49: Type Tests

    NKCR Safety UL C22.2-14 e83849 NKCR7 Safety UL 1053 e83849 NKCR Safety IEC 60255-27 Insulation: class 1, Pollution degree: 2, Over voltage cat II 1 Not tested by third party. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-35...
  • Page 50: Production Tests

    Normally, cleaning is not required. When dust has accumulated on the front panel display, wipe with a dry cloth. To avoid deterioration of electrolytic capacitors, power up units that are stored in a de-energized state once per year, for one hour continuously. 2-36 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 51: Installation

    For any issues, contact GE as outlined in the For Further Assistance section in chapter 1. Check that you have the latest copy of the L60 Instruction Manual and the UR Family Communications Guide, for the applicable firmware version, at http://www.gegridsolutions.com/multilin/manuals/index.htm...
  • Page 52: Panel Cutouts

    3.2.1 Horizontal units The L60 is available as a 19-inch rack horizontal mount unit with a removable front panel. The front panel is specified as enhanced, standard, or graphical at the time of ordering. The enhanced and graphical front panels contain additional user-programmable pushbuttons and LED indicators.
  • Page 53 CHAPTER 3: INSTALLATION PANEL CUTOUTS Figure 3-1: Horizontal dimensions (old enhanced front panel) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 54 PANEL CUTOUTS CHAPTER 3: INSTALLATION Figure 3-2: Horizontal dimensions (enhanced front panel) Figure 3-3: Horizontal mounting (enhanced and graphical front panels) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 55 CHAPTER 3: INSTALLATION PANEL CUTOUTS Figure 3-4: Horizontal dimensions and mounting (standard front panel) Figure 3-5: Horizontal dimensions (graphical front panel) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 56: Vertical Units

    3.2.2 Vertical units The L60 is available as a reduced size (¾) vertical mount unit, with a removable front panel. The front panel is specified as enhanced or standard at the time of ordering. The enhanced front panel contains additional user-programmable pushbuttons and LED indicators.
  • Page 57 CHAPTER 3: INSTALLATION PANEL CUTOUTS Figure 3-7: Vertical dimensions and mounting (enhanced front panel) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 58 PANEL CUTOUTS CHAPTER 3: INSTALLATION Figure 3-8: Vertical dimensions and mounting (standard front panel) For side-mounting L60 devices with the enhanced front panel, see the following documents available on the UR DVD and the GE Grid Solutions website: • GEK-113180 —...
  • Page 59 CHAPTER 3: INSTALLATION PANEL CUTOUTS For side-mounting L60 devices with the standard front panel, use the following figures. Figure 3-9: Vertical side-mounting installation (standard front panel) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 60 PANEL CUTOUTS CHAPTER 3: INSTALLATION Figure 3-10: Vertical side-mounting rear dimensions (standard front panel) 3-10 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 61: Rear Terminal Layout

    Two-slot wide modules take their slot designation from the first slot position (nearest to CPU module), indicated by an arrow on the terminal block. The figure shows an example of rear terminal assignments. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-11...
  • Page 62 Wire connections to these two modules at 13 inch-pounds. Figure 3-12: CPU modules and power supply The following figure shows the optical connectors for CPU modules. 3-12 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 63 CHAPTER 3: INSTALLATION PANEL CUTOUTS Figure 3-13: LC fiber connector (left) and ST fiber connector (right) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-13...
  • Page 64: Wiring

    3.3.2 Dielectric strength Dielectric strength is the maximum electric strength that can be sustained without breakdown. It is measured in volts. The table shows the dielectric strength of the UR-series module hardware. 3-14 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 65: Control Power

    The power supply module can be ordered for two possible voltage ranges, and the L60 can be ordered with or without a redundant power supply module option. Each range has a dedicated input connection for proper operation. The ranges are as follows (see the Specifications section of chapter 2 for details): •...
  • Page 66: Ct/vt Modules

    Figure 3-15: Control power connection When using a L60 with a HardFiber system, before powering off the L60, save data in the compact flash memory using Commands > Relay Maintenance > Save Non-Volatile Data. When not saved or the relay loses power, up to the last two minutes of data is not saved to the compact flash memory.
  • Page 67: Contact Inputs And Outputs

    UR models. The L60 uses a special CT/VT module not available on other UR-series relays. This type 8P module has four current inputs and special communications inputs/outputs for interfacing with power line carriers (PLCs). The communications interface requires an external DC source (station battery) to drive inputs/outputs as shown in the L60 Channel Communications section in this chapter.
  • Page 68 See the Digital Elements section of chapter 5 for an example of how form-A and solid-state relay contacts can be applied for breaker trip circuit integrity monitoring. Consider relay contacts unsafe to touch when the unit is energized. Death or serious injury can result from touching live relay contacts. 3-18 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 69 Output or Terminal Output or assignment input assignment assignment input assignment input Form-C Fast Form-C Form-A Form-A Form-C Fast Form-C Form-A Form-A Form-C Fast Form-C Form-A Form-A Form-C Fast Form-C Form-A Form-A L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-19...
  • Page 70 ~15a - ~16a Output ~9a, ~9b 2 Inputs ~17a - ~18a Output ~10a, ~10b 2 Inputs ~1b - ~2b Output ~11a, ~11b 2 Inputs ~3b - ~4b Output ~13a, ~13b 2 Inputs 3-20 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 71 2 Outputs ~4a, ~4c 2 Inputs 2 Outputs ~5a, ~5c 2 Inputs 2 Outputs ~6a, ~6c 2 Inputs 2 Outputs ~7a, ~7c 2 Inputs 2 Outputs ~8a, ~8c 2 Inputs Not Used L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-21...
  • Page 72 WIRING CHAPTER 3: INSTALLATION Figure 3-18: Contact input and output module wiring (Sheet 1 of 3) 3-22 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 73 CHAPTER 3: INSTALLATION WIRING Figure 3-19: Contact input and output module wiring (Sheet 2 of 3) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-23...
  • Page 74 17 V DC for 24 V sources, 33 V DC for 48 V sources, 84 V DC for 110 to 125 V sources, and 166 V DC for 250 V sources. Figure 3-21: Dry and wet contact input connections Where a tilde “~” symbol appears, substitute the slot position of the module. 3-24 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 75 L60 input even when the output is open, if there is a substantial distributed capacitance (represented by C1) present in the wiring between the output and the L60 input, and the debounce time setting in the L60 relay is low enough.
  • Page 76 To prevent this operation, the debounce time must be increased to 4 ms (set debounce time as per the following table) or insert a resistor less than or equal to "R" as calculated later. Table 3-5: Typical debounce time setting Stray capacitance (μF) Battery voltage (V) Debounce time (ms) 0.05 0.05 3-26 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 77 Eq. 3-2 The 2 mA current is used in case the contact input is connected across the GE Form A contact output with voltage monitoring. Otherwise use the amperage of the active circuit connected to the contact input when its contact output is open and the voltage across the contact input is third trigger threshold to calculate the resistor value.
  • Page 78 Contact inputs can be susceptible to parasitic capacitance, caused by long cable runs affected by switching surges from external circuits. This can result in inadvertent activation of contact inputs with the external contact open. In this case, GE recommends using the contact I/O module with active impedance circuit.
  • Page 79: Transducer Inputs And Outputs

    The following figure illustrates the transducer module types (5A, 5C, 5D, 5E, and 5F) and channel arrangements that can be ordered for the relay. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-29...
  • Page 80 WIRING CHAPTER 3: INSTALLATION Where a tilde “~” symbol appears, substitute the slot position of the module. Figure 3-27: Transducer input/output module wiring The following figure show how to connect RTDs. 3-30 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 81: Rs232 Port

    RS232 port is shown in the following figure for the nine-pin connector on the UR and nine or 25-pin connector on a computer. The baud rate for this port can be set, with a default of 115200 bps. Figure 3-29: RS232 front panel port connection L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-31...
  • Page 82: Cpu Communication Ports

    3.3.8 CPU communication ports 3.3.8.1 Overview There is a rear RS485 communication port on the CPU module. The CPU module does not require a surge ground connection. Figure 3-30: CPU module communications wiring 3-32 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 83 This common voltage is implied to be a power supply common. Some systems allow the shield (drain wire) to be used as common wire and to connect directly to the L60 COM terminal (#3); others function correctly only if the common wire is connected to the L60 COM terminal, but insulated from the shield.
  • Page 84: Irig-b

    IRIG-B is a standard time code format that allows stamping of events to be synchronized among connected devices. The IRIG-B code allows time accuracies of up to 100 ns. The GE MultiSync 100 1588 GPS Clock as well as third-party equipment are available for generating the IRIG-B signal.
  • Page 85: L60 Channel Communications

    L60 channel communications 3.3.10 As described earlier in this chapter, L60 communication channels reside on the special CT/VT module (type 8P). This module allows for all possible 87PC scheme combinations (such as dual phase comparison or single-phase comparison, two- terminal or three-terminal applications) in one module. The scheme can be upgraded or changed at any time. The L60 channel interface requires an external battery to drive inputs and outputs.
  • Page 86: Direct Input And Output Communications

    (MUX) and all URs are in Loop Timing Mode. If there is no MUX, then UR1 and UR3 can be in Internal Timing Mode and UR2 and UR4 can be in Loop Timing Mode. That is, connected channels must have opposite timing modes. 3-36 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 87 1 to channel 2 on UR2, set the setting to “Enabled” on UR2. This forces UR2 to DIRECT I/O CHANNEL CROSSOVER forward messages received on Rx1 out Tx2, and messages received on Rx2 out Tx1. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-37...
  • Page 88: Fiber: Led And Eled Transmitters

    The following figure shows the configuration for the 7A, 7B, 7C, 7H, 7I, and 7J fiber-only modules. Figure 3-38: LED and ELED fiber modules 3.4.3 Fiber laser transmitters The following figure shows the configuration for the 72, 73, 7D, and 7K fiber-laser modules. 3-38 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 89: Interface

    The following figure shows the 64K ITU G.703 co-directional interface configuration. This is module 7S. The G.703 module is fixed at 64 kbps. The setting is not SETTINGS  PRODUCT SETUP  DIRECT I/O  DIRECT I/O DATA RATE applicable to this module. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-39...
  • Page 90 Once the clips have cleared the raised edge of the chassis, engage the clips simultaneously. When the clips have locked into position, the module is inserted fully. 3-40 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 91 (S1 = ON) and set timing mode to loop timing (S5 = OFF and S6 = OFF). The switch settings for the internal and loop timing modes are shown. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-41...
  • Page 92 One source lies on the G.703 line side of the interface while the other lies on the differential Manchester side of the interface. Figure 3-46: G.703 dual loopback mode 3-42 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 93: Rs422 Interface

    (data module 1) connects to the clock inputs of the UR RS422 interface in the usual way. In L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-43...
  • Page 94 Figure 3-49: Timing configuration for RS422 two-channel, three-terminal application Data module 1 provides timing to the L60 RS422 interface via the ST(A) and ST(B) outputs. Data module 1 also provides timing to data module 2 TT(A) and TT(B) inputs via the ST(A) and AT(B) outputs. The data module pin numbers have been omitted in the figure because they vary by manufacturer.
  • Page 95: Rs422 And Fiber Interface

    For the direct fiber channel, address power budget issues properly. When using a laser interface, attenuators can be necessary to ensure that you do not exceed maximum optical input power to the receiver. Figure 3-51: RS422 and fiber interface connection L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-45...
  • Page 96: And Fiber Interface

    Connection — as per all fiber-optic connections, a Tx-to-Rx connection is required The UR-series C37.94 module can be connected directly to any compliant digital multiplexer that supports the IEEE C37.94 standard. The figure shows the concept. 3-46 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 97 5.60. For customers using firmware release 5.60 and higher, the module can be identified with "Rev D" printed on it and is to be used on all ends of L60 communication for two and three terminal applications.
  • Page 98 When the clips have locked into position, the module is inserted fully. Figure 3-56: IEEE C37.94 timing selection switch setting Modules shipped since January 2012 have status LEDs that indicate the status of the DIP switches, as shown in the following figure. 3-48 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 99: C37.94sm Interface

    Fiber-optic cable length — Up to 11.4 km • Fiber-optic connector — Type ST • Wavelength — 1300 ±40 nm • Connection — As per all fiber-optic connections, a Tx-to-Rx connection is required L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-49...
  • Page 100 5.60. For customers using firmware release 5.60 and higher, the module can be identified with "Rev D" printed on it and is to be used on all ends of L60 communication for two and three terminal applications.
  • Page 101 When the clips have locked into position, the module is inserted fully. Figure 3-59: C37.94SM timing selection switch setting Modules shipped since January 2012 have status LEDs that indicate the status of the DIP switches, as shown in the following figure. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-51...
  • Page 102: Activate Relay

    MESSAGE SECURITY Press the down arrow until the message displays. MESSAGE INSTALLATION Press the right arrow until the Not Programmed message displays. MESSAGE RELAY SETTINGS: 3-52 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 103: Install Software

    To communicate via the RS232 port, use a standard straight-through serial cable. Connect the DB-9 male end to the relay and the DB-9 or DB-25 female end to the computer COM2 port as described in the CPU Communication Ports section earlier in this chapter. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-53...
  • Page 104: System Requirements

    This device (catalog number F485) connects to the computer using a straight-through serial cable. A shielded twisted-pair wire (20, 22, or 24 AWG) connects the F485 converter to the L60 rear communications port. The converter terminals (+, –, GND) are connected to the L60 communication module (+, –, COM) terminals. See the CPU Communication Ports section in chapter 3 for details.
  • Page 105: Install Software

    Add Now button to list software items for the product. EnerVista Launchpad obtains the software from the Internet or DVD and automatically starts the installation program after prompting about updates. From the web, the software is downloaded. A wizard opens. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-55...
  • Page 106: Add Device To Software

    You connect remotely to the L60 through the rear RS485 or Ethernet port with a computer running the EnerVista UR Setup software. The L60 also can be accessed locally with a computer through the front panel RS232 or USB port or the rear Ethernet port using the Quick Connect feature.
  • Page 107: Set Ip Address In Ur

    Online Window area, cannot be moved from it to another grouping, and needs to be renamed in the Device Setup window. GE instead recommends using the Device Setup window to add devices, as outlined here. 3.7.1 Set IP address in UR The IP and subnet addresses need to be added to the UR for Ethernet communication.
  • Page 108 ADD DEVICE TO SOFTWARE CHAPTER 3: INSTALLATION connections window. Or in Windows 7, access the Network and Sharing Center in the Control Panel. Right-click the Local Area Connection icon and select Properties. 3-58 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 109 Select the Internet Protocol (TCP/IP) item from the list, and click the Properties button. Click the “Use the following IP address” box. Enter an IP address with the first three numbers the same as the IP address of the L60 relay and the last number different (in this example, 1.1.1.2).
  • Page 110 Minimum = 0ms, Maximum = 0ms, Average = 0 ms Pinging 1.1.1.1 with 32 bytes of data: verify the physical connection between the L60 and the computer, and double-check the programmed IP address in setting, then repeat step 2. PRODUCT SETUP  COMMUNICATIONS  NETWORK  IP ADDRESS...
  • Page 111 Click the Quick Connect button to open the window. Select the Ethernet interface and enter the IP address assigned to the L60, then click the Connect button. The EnerVista UR Setup software creates a site named “Quick Connect” with a corresponding device also named “Quick Connect”...
  • Page 112: Configure Serial Connection

    For the RS232 connection, a computer with an RS232 port and a serial cable are required. To use the RS485 terminals at the back of the relay, a GE Grid Solutions F485 converter (or compatible RS232-to-RS485 converter) is required. See the F485 instruction manual for details.
  • Page 113 Processor, such as an SEL-2030 or SEL-2032. This option enables display of a terminal window to allow interaction with the other device. Click the Read Order Code button to connect to the L60 and upload the order code to the software. If a communications error occurs, ensure that the EnerVista software serial communications values entered in the previous step correspond to the relay setting values, and also ensure that the same IP address is not assigned to multiple L60 ports.
  • Page 114: Configure Ethernet Connection

    10. If using a gateway to connect to the device, select Yes from the drop-down list. 11. Click the Read Order Code button to connect to the L60 device and upload the order code. If the device was entered already, a message displays "Device ’x’ is also using IP address.." If a communications error occurs, ensure that the...
  • Page 115: Automatic Discovery Of Ur Devices

    12. Click the OK button when the relay order code has been received. The new site and device are added to the Online Window. The device has been configured for Ethernet communications. Proceed to the Connect to the L60 section to begin communications.
  • Page 116: Connect To The L60 In Enervista

    CONNECT TO THE L60 CHAPTER 3: INSTALLATION When unable to connect, ensure that the same IP address is not assigned to multiple L60 ports, for example under Settings > Product Setup > Communications > Network. When multiple computers are connected to a L60 device, EnerVista settings windows are not updated automatically.
  • Page 117: Use Quick Connect Via Front Rs232 Port

    Click the Quick Connect button to open the window. Select the USB Interface and the "GE Virtual Serial Port" driver from the drop-down list, then click Connect. If the GE driver does not display, it means that the USB cable was connected on Windows 10 when upgrading the UR software.
  • Page 118: Use Quick Connect Via A Rear Ethernet Port

    Connect" and displays them in the Online Window. Expand the sections to view data directly from the L60 device. Use the Device Setup button to change the site name. Each time that the EnerVista software is initialized, click the Quick Connect button to establish direct communications to the L60.
  • Page 119: Import Settings

    URS — When not IEC 61850 and version is lower than 7.30, the file is added and time stamp is unchanged. When clicking in the software on the tree element, a device folder is created, the original file moves into it, and time stamp is on the URS file is retained. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-69...
  • Page 120: Connect To D400 Gateway

    3.11 Connect to D400 gateway A GE Multilin D400 Substation Gateway can be used to collect data from UR devices in a local area network (LAN). It collects metering, status, event, and fault report data from serial or LAN-based intelligent substation devices, and it pre-processes the data.
  • Page 121: Setting Files

    These are the configuration/settings files in the IEC 61850 SCL/IID format. The ur.iid file is saved with a "_YYMMDDhhmmss" retrieval time stamp, for example ur_170525183124.iid. It is stored in the D400 folder system using the UR site and device name. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-71...
  • Page 122 CONNECT TO D400 GATEWAY CHAPTER 3: INSTALLATION 3-72 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 123: Interfaces

    The EnerVista UR Setup software is provided with every L60. This chapter outlines the EnerVista software interface. The EnerVista UR Setup help file in the software also provides details for getting started and using the software interface.
  • Page 124: Event Viewing

    IP Address IP Subnet Mask IP Routing When a settings file is loaded to a L60 that is in-service, the following sequence occurs: The L60 takes itself out of service. The L60 issues a UNIT NOT PROGRAMMED major self-test error.
  • Page 125: File Support

    Settings list / offline window area Software windows, with common toolbar Settings file data view windows, with common toolbar Workspace area with data view tabs Status bar 10. Quick action hot links L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 126: Protection Summary Window

    The Protection Summary is a graphical user interface to manage elements, such as enabling and disabling them. Access it under Settings > Protection Summary. See the Settings chapter for information on use. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 127: Settings Templates

    The settings file template is now enabled and the file menus display in light blue. The settings file is now in template editing mode. To undo the action, select Template Mode > Remove Template. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 128 Figure 4-4: Settings template with all settings specified as locked Specify the settings to make viewable by clicking them. A setting available to view displays with a yellow background. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 129 4.1.7.3 Add password protection to a template GE recommends that templates be saved with password protection to maximize security. When templates are created for online settings, the password is added during the initial template creation step. It does not need to be added after the template is created.
  • Page 130 Once the template has been applied, users are limited to edit the settings specified by the template, but all settings are shown. The effect of applying the template to the phase time overcurrent settings is shown as follows. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 131: Secure And Lock Flexlogic Equations

    EnerVista UR Setup is in EDIT mode. Specify the entries to lock by clicking them. The locked entries display a grey background as shown in the example. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 132 The effect of applying the template to the FlexLogic entries is shown here. Figure 4-10: Locking FlexLogic entries through settings templates The FlexLogic entries are also shown as locked in the graphical view and on the front panel display. 4-10 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 133 Actual Values > Product Info > Model Information, the inside front panel, and the rear of the device. Right-click the setting file in the Offline Window area and select the Edit Device Properties item. The window opens. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-11...
  • Page 134: Settings File Traceability

    When a settings file is transferred to a L60 device, the date, time, and serial number of the L60 are sent back to EnerVista UR Setup and added to the settings file on the local computer. This information can be compared with the L60 actual values at any later date to determine if security has been compromised.
  • Page 135 • The transfer date of a settings file written to a L60 is logged in the relay and can be viewed in the EnerVista software or the front panel display. Likewise, the transfer date of a settings file saved to a local computer is logged in the EnerVista software.
  • Page 136 4.1.9.2 Online device traceability information The L60 serial number and file transfer date are available for an online device through the actual values. Select the Actual Values > Product Info > Model Information menu item within the EnerVista online window as shown in the example.
  • Page 137: Front Panel Interface

    The enhanced front panel consists of LED panels, an RS232 port, keypad, LCD display, control pushbuttons, and optional user-programmable pushbuttons. The front panel is hinged to allow access to removable modules inside the chassis. The L60 enhanced front panel can be horizontal or vertical. The following figure shows the horizontal front panel.
  • Page 138 IEC 61850. The USB port connects to a computer with the EnerVista software and can be used to upgrade the relay and to transfer files and settings. The USB port is the square type B. 4-16 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 139: Front Panel Display

    The front panel can be viewed and used in the EnerVista software, for example to view an error message displayed on the front panel or the LEDs. To view the front panel in EnerVista software: Click Actual Values > Front Panel, then any option. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-17...
  • Page 140 IRIG-B, SNTP, and so on, the date/time is shown in white, and otherwise in yellow. On pages other than the home page, the header displays the name of the page. The footer dynamically labels the Tab, or control, pushbuttons immediately below. Page content displays between the header and footer. 4-18 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 141 RESET button clears those messages that can be. Configure the home page in the software under Settings > Product Setup > Graphical Panel > Home Page. The menu does not display when there is no graphical front panel. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-19...
  • Page 142 Factory default names are SLD 1 to SLD 5. Pages that have no configured content have a blank Tab pushbutton label, and the Tab pushbutton does nothing. The label for the current page has a blue background. Figure 4-24: Toolbar options for single-line diagram 4-20 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 143 Figure 4-25: Single-line diagram of open circuit breakers Under Settings > System Setup > Switches and Breakers, enable and name the six switches and two breakers. Switch 6, M568G, has the A/3 Pole Opened setting on. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-21...
  • Page 144 Line Diagram Editor. Add the four switches for the top line by clicking the GE switch symbol in the toolbar, then clicking in the window. (If the UR device is not online, the software attempts to connect.) Right-click to edit properties. Rotate switches SW569 and SW5682 to 270 degrees.
  • Page 145 Figure 4-27: Single-line diagram on graphical front panel Press the Enable Control pushbutton. The side pushbutton labels display. Figure 4-28: Side pushbutton display on graphical front panel Press the CB523 breaker pushbutton. Its menu displays. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-23...
  • Page 146 To add a line component, click it in the toolbox, then click in the window. Double-click a line to open its properties window to set orientation. Figure 4-30: Line and bus crossover symbols 4-24 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 147 Each breaker and disconnect component can be configured to use UR-style symbols, IEC symbols, or simple square/slash symbols as shown in the following figure. The symbols assume horizontal symbol orientation, red - closed color, and green - open scheme. With vertical orientation, they are rotated 90 degrees. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-25...
  • Page 148 (horizontal or vertical), color scheme (red - closed, or red - open), and assigned side button (if any). If the selected breaker or disconnect element does 4-26 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 149 A question mark displays in a symbol on the graphical front panel when status is bad. The question mark does not rotate with orientation. Figure 4-34: Symbols when status is bad The following figures show the orientation available for the static components. The default position is 0 degrees. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-27...
  • Page 150 FRONT PANEL INTERFACE CHAPTER 4: INTERFACES Figure 4-35: Single-line diagram static symbol orientation (sheet 1 of 2) 4-28 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 151 User-programmable pushbuttons 9 to 16 can be programmed among the 10 pushbuttons on the left and right sides of the screen display. They show dynamically and provide a means to perform the same control as the other pushbuttons. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-29...
  • Page 152 To add a metering component, click the M symbol in the toolbox, then click in the window. Drag it to its final location. Double-click it to open the properties window. The figure shows the properties that can be edited. 4-30 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 153 Self Reset, so the alarm displays in a solid color. The blue alarm type is Acknowledgeable, so the alarm flashes until it is acknowledged, for example by navigating with the arrow keys and pressing the ENTER button. The alarm then remains blue until the trigger condition is eliminated. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-31...
  • Page 154 FlexLogic operand. The self-reset mode alarm sequence conforms to ISA-18.1-1979 (R2004) standard type A 4 5 6. Figure 4-40: Annunciator alarm sequence in Self Reset mode 4-32 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 155 An alarm remains in an alarm state (for example, displays red) when the condition remains. That is, if you acknowledged a flashing alarm but the alarm condition remains, the background color remains red. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-33...
  • Page 156 The three page layouts (3 × 4, 4 × 6, and 6 × 8) select the number of rows x columns of windows that appear in a page. Annunciator window size and text size shrink as the number of annunciator windows in a page increases. 4-34 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 157 Content to display is configured with the cell lines. The content can be actual values, a status indicator, or text. • Actual value — Select from the FlexAnalogs applicable to the L60, where a FlexAnalog is an analog parameter L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 158 Save — Updates the connected device if online or the open setting file if offline with changes made • Restore — Undoes changes that have not been saved • Default — Changes all settings in the window to factory default values 4-36 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 159: Front Panel Navigation Keys

    ESCAPE — If a setting is open for edit, this pushbutton closes the setting without saving. If a popup menu is open, this pushbutton closes it. If an item is selected, this pushbutton deselects it. Otherwise this pushbutton activates the previous page in the page hierarchy. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-37...
  • Page 160: Led Indicators

    IN SERVICE — Indicates that control power is applied, all monitored inputs/outputs and internal systems are fine, and the relay is in (online) Programmed mode (under Settings > Product Setup > Installation) 4-38 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 161 Support for applying a customized label beside every LED is provided. Default labels are shipped in the label package of every L60, together with custom templates. The default labels can be replaced by user-printed labels. User customization of LED operation is of maximum benefit in installations where languages other than English are used to communicate with operators.
  • Page 162 PHASE A — Indicates phase A was involved • PHASE B — Indicates phase B was involved • PHASE C — Indicates phase C was involved • NEUTRAL/GROUND — Indicates that neutral or ground was involved 4-40 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 163 LED settings must be entered as shown in the User-programmable LEDs section of chapter 5. The LEDs are fully user-programmable. The default labels can be replaced by user-printed labels for both panels as explained in the next section. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-41...
  • Page 164 ALARM — Indicates that the selected FlexLogic operand serving as an alarm input has operated. Set the operand under Settings > Product Setup > User-Programmable LEDs > Trip & Alarm LEDs. Figure 4-51: Example of LEDs on graphical front panel 4-42 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 165: Front Panel Labelling

    NEUTRAL/GROUND — LED 14 — Indicates that neutral or ground was involved 4.2.5 Front panel labelling 4.2.5.1 Enhanced front panel The following procedure requires these pre-requisites: • The UR front panel label cutout sheet (GE part number 1006-0047) has been downloaded from http://www.gegridsolutions.com/products/support/ur/URLEDenhanced.doc and printed • Small-bladed knife To create custom LED and pushbuttons labels for the enhanced front panel: Start the EnerVista UR Setup software.
  • Page 166 LED labels. Use the tool with the printed side containing the GE part number facing the user. The label package shipped with every L60 contains the three default labels, the custom label template sheet, and the label removal tool.
  • Page 167 Bend the tab at the center of the tool tail as shown. To remove the LED labels from the L60 front panel and insert the custom labels: Use the knife to lift the LED label and slide the label tool underneath. Ensure that the bent tabs are pointing away from the relay.
  • Page 168 Slide the new LED label inside the pocket until the text is properly aligned with the LEDs, as shown. To remove the user-programmable pushbutton labels from the L60 front panel and insert the custom labels: Use the knife to lift the pushbutton label and slide the tail of the label tool underneath, as shown. Ensure that the bent 4-46 L60 LINE PHASE COMPARISON SYSTEM –...
  • Page 169 Remove the tool and attached user-programmable pushbutton label. Slide the new user-programmable pushbutton label inside the pocket until the text is properly aligned with the L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-47...
  • Page 170 To create LED and pushbutton labels for a standard front panel: In the EnerVista software, if the L60 is not already listed in the Offline Window area, add it by right-clicking it and selecting the Add Device to Offline Window option.
  • Page 171 4.2.5.3 Graphical front panel The L60 includes software for labelling the LEDs and pushbuttons on the graphical front panel and a sticker sheet with pre- printed and blank labels. The pre-printed labels are on the top-left of the template sheet, and the blank labels are on the bottom-right.
  • Page 172: Menu Navigation

    Use the down, right, left, and up arrows to navigate the menu. The up and down arrow keys move within a group of headers, sub-headers, setting values, or actual MESSAGE 4-50 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 173 The Page Up and Page Down Tab pushbuttons also navigate through the list. When there is only a single page of options, they jump to the first and last entries. The options displayed depend on order code. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-51...
  • Page 174: Change Settings

    This flash message momentarily appears as confirmation of the storing process. Numerical values that contain decimal places are rounded-off if more decimal place digits are entered than specified by the step value. 4-52 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 175 An example is a confirmation message upon saving settings. This setting specifies how long to display the message. Press the Menu pushbutton to display the main menu. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-53...
  • Page 176 Figure 4-56: Main menu Use the Up or Down pushbutton to select SETTINGS, then press the Right or ENTER pushbutton. Figure 4-57: Settings menu With PRODUCT SETUP selected, press the Right or ENTER pushbutton. 4-54 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 177 Pressing the ENTER pushbutton with the - key selected inverts the sign. Pressing the ENTER pushbutton with the decimal point selected enters that character at the insertion point. Push ENTER now to accept the 4. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-55...
  • Page 178 To add accents, highlight a key and hold the ENTER pushbutton on the graphical front panel. Any special characters associated with the key display. Figure 4-61: Settings page with keyboard and accents 4-56 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 179: View Actual Values

    Phasor pages that have no configured CTs or VTs do not have a Tab pushbutton, and phasor pages that have no configured cells cannot be displayed. Figure 4-62: Phasor display The configurable name displays in the header and Tab pushbutton label. Factory default names are Page 1, Page 2, and so L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-57...
  • Page 180: Breaker Control

    4.2.9 Breaker control The L60 can interface with associated circuit breakers. In many cases the application monitors the state of the breaker, that can be presented on front panel LEDs, along with a breaker trouble indication. Breaker operations can be manually initiated from the front panel keypad or automatically initiated from a FlexLogic operand.
  • Page 181: Change Passwords

    When entering a settings or command password via EnerVista or any serial interface, the user must enter the corresponding connection password. If the connection is to the back of the L60, the remote password must be used. If the connection is to the RS232 port of the front panel, the local password must be used.
  • Page 182: Invalid Password Entry

    By default, when an incorrect Command or Setting password has been entered via the front panel three times within five minutes, the FlexLogic operand is set to “On” and the L60 does not allow settings or command level LOCAL ACCESS DENIED access via the front panel for five minutes.
  • Page 183: Logic Diagrams

    Not. Negates/reverses the output, for example 0 becomes 1.  Connection  S, R Set, Reset Timer pickup. Triggered by the settings latch in the diagram. Timer reset. Triggered by the reset latch in the diagram. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-61...
  • Page 184: Flexlogic Design Using Engineer

    Works with all UR firmware versions The figure shows an example where several inputs are used to trigger an output. With the OR function, any one of the inputs can trigger the output. 4-62 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 185 This section explains how to use Engineer. It outlines the following topics: • Design logic • Send file to and from device • Monitor logic • View front panel • Generate connectivity report • Preferences L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-63...
  • Page 186: Design Logic

    Preparation — Under Settings > Inputs/Outputs > Virtual Outputs, virtual outputs 3 and 4 are named DLTrigger Top logic — Seven-minute timer trigger Bottom logic — Turn on LED 9 for 10 seconds when the trigger starts 4-64 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 187 This procedure uses input / output logic as an example. To create a logic diagram: In the Offline Window area, access Engineer for the device, then Logic Designer. If the device is not listed, right-click L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-65...
  • Page 188 Optionally delete the default logic diagram by right-clicking its tab at the bottom of the window and selecting Delete. To add a blank sheet, click Edit > Add Sheet. A new tab displays. Or use the last tab displayed, which is a blank sheet. 4-66 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 189 Line option. The cursor needs to be at the connection point to end the line, not elsewhere on the block. Note that the outline color is no longer red on the blocks. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-67...
  • Page 190 The warning "input using disabled feature" means that input needs to be enabled. Double-click the block, click the View Associated Screen button, enable the setting, save, and recompile. The output and messages are explained in the next section. 4-68 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 191 IEC 61850 panel and thereby become synchronized. The CID file and the IID file (depending on the preference 'Do not update IID file when updating SCL files') are updated. If the CID file is not already there, it is generated. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-69...
  • Page 192 CHAPTER 4: INTERFACES The location of these files is C:\ProgramData\GE Power Management\urpc, for example, in the Offline and Online folders. Any FlexLogic equations entered in the Offline Window area are erased. The logic drawn in the Logic Designer window in Engineer in the Offline Window area remain.
  • Page 193 Click the Ok button to save and exit from the window. In the logic diagram, select an element, then click in the drawing area to add it, click again to add a second box, and so on. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-71...
  • Page 194 Optimization Summary. Changes also display when the FlexLogic Equation Editor is accessed. The logic diagram does not change. In the example shown, no lines were saved to free up space. Figure 4-81: Code optimization results 4-72 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 195 Type in the second text string box, or select any of the 32 previous searches from the drop-down list. Click the Search button. Any results display. The search applies to all tabs, not just the active tab. Double-click a search result to view the item. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-73...
  • Page 196: Send File To And From Device

    When a window opens, select the device to which you want to send the file, then click the Send button and confirm. The order codes must match. The file is sent to the live device. Any errors can be viewed in the log file at the prompt. 4-74 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 197: Monitor Logic

    (green box outline). In this case, the battery is weak and needs to be replaced. This can be viewed as the Replace Battery message on the front panel of the device and in the EnerVista software under Actual Values > Front Panel > Front Panel or Display/Keypad. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-75...
  • Page 198: View Front Panel And Print Labels

    To save the report and labels, click File > Save As, enter a file name, and select the FPR, JPG, or PDF format. Use the instructions in the second tab of the window to add the labels to the physical device. 4-76 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 199: Generate Connectivity Report

    View > Toolbar > Advanced Actions — Active when in Logic Designer. Toggles a toolbar to nudge, rotate, flip, or change the order of an element. View > Show Unused Pins — Enable to display unconnected pins. Disable to eliminate unconnected pins from the view, for example when printing. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-77...
  • Page 200 File Information The text entered here displays at the bottom right of a diagram when printing, provided that the Show Title Block option is enabled. Note the option to change the logo from the GE logo to your company logo. Display The panel sets how the element boxes display.
  • Page 201 The software displays the color specified when an element is on. There is no color when the element is off. The software displays another color when the status cannot be determined and is unknown. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-79...
  • Page 202 Options display for filtering, such as recording timing for Virtual Inputs and Outputs, but not Communications Status. 4.4.6.4 COMTRADE waveforms Waveform files are viewable in the EnerVista software. The preferences are unrelated to Engineer and are outlined in the UR Family Communications Guide. 4-80 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 203: Toolbars

    4.4.7.2 Token Toolbox Drawing Tools Draw a line. Click and drag to draw. Draw multiple joined lines. Click and drag for each line. Double-click to finish. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-81...
  • Page 204 Input from another UR device. Teleprotection inputs/outputs and direct inputs/outputs are mutually exclusive and cannot be used simultaneously. Teleprotection inputs/outputs and direct inputs/outputs are mutually exclusive and cannot be used simultaneously. 4-82 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 205 Tag-In can is used to reference an existing Tag-Out. It joins another diagram to a previous diagram. Boolean Tokens These symbols are used to create FlexLogic Equations. Use them as intermediate logic for the Virtual Output equations. The display can vary from that shown here. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-83...
  • Page 206 Place a positive one shot and a negative one shot symbol in the Logic Designer diagram Place a timer in the Logic Designer diagram Elements These blocks configure properties of the element or use element operands as input to FlexLogic equations. 4-84 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 207 Set the width of the selected components to the same width as the reference component Same Height Set the height of the selected components to the same height as the reference component L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-85...
  • Page 208 Front, Back Moves current components to the absolute front or back of all viewable layers Forward, Backward Moves current components on layer higher or lower than its original layer hierarchy 4-86 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 209: Settings

     MODBUS USER MAP See page 5-108    REAL TIME See page 5-108   CLOCK  FAULT REPORTS See page 5-113    OSCILLOGRAPHY See page 5-115   L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 210 See page 5-190    LATCHES  SETTINGS  SETTING GROUP 1 See page 5-191   GROUPED ELEMENTS   SETTING GROUP 2     SETTING GROUP 3   L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 211   SETTINGS  DCMA INPUTS See page 5-373   TRANSDUCER I/O   RTD INPUTS See page 5-374     DCMA OUTPUTS See page 5-375    L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 212: Overview

    For example, on a system with a 13.8 kV nominal primary voltage, the base quantity is 13800 V. With 14400:120 V delta- connected VTs, the secondary base quantity and secondary voltage setting is: Eq. 5-1 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 213: Introduction To Ac Sources

    5.2.2.1 Background The L60 is ordered with two CT/VT modules. If two breakers are involved in an application, the current must be summed externally. With two CT/VT modules, the L60 allows the connection of two breaker CTs directly to the relay, processing the currents individually for some functions and summing them for other functions by employing the sources mechanism.
  • Page 214 Sources, in the context of L60 relays, refer to the logical grouping of current and voltage signals such that one source contains all the signals required to measure the load or fault in a particular power apparatus. A given source can contain all or some of the following signals: three-phase currents, single-phase ground current, three-phase voltages and an auxiliary voltages from a single-phase VT for checking for synchronism.
  • Page 215 Upon startup, the CPU configures the settings required to characterize the current and voltage inputs, and it displays them in the appropriate section in the sequence of the banks (as described earlier) as follows for a maximum configuration: F1, F5, L1, L5, S1, and S5. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 216: Product Setup

    To reset the unit after a lost password: Email GE customer service at multilin.tech@ge.com with the serial number and using a recognizable corporate email account. Customer service provides a code to reset the relay to the factory defaults.
  • Page 217 When entering a settings or command password via EnerVista or any serial interface, the user must enter the corresponding connection password. If the connection is to the back of the L60, the remote password must be used. If the connection is to the RS232 port of the front panel, the local password must be used.
  • Page 218 Enter the new password in the New Password field. Requirements are outlined in the Password Requirements section earlier in this chapter. When an original password has already been used, enter it in the Enter Password field and click 5-10 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 219 INVALID ATTEMPTS BEFORE LOCKOUT The L60 provides a means to raise an alarm upon failed password entry. If password verification fails while accessing a password-protected level of the relay (either settings or commands), the FlexLogic operand is UNAUTHORIZED ACCESS asserted.
  • Page 220 ACCESS AUTH TIMEOUT immediately denied. If access is permitted and an off-to-on transition of the FlexLogic operand is detected, the timeout is restarted. The status of this timer updates every five seconds. 5-12 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 221 It is disabled by default to allow access to the device immediately after installation. When security is disabled, all users have administrator access. GE recommends enabling the EnerVista security before placing the device in service. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 222 If you force password entry by using this feature, ensure that you know the Administrator password. If you do not know the password and are locked out of the software, contact GE Grid Solutions for the default password of a UR device.
  • Page 223 The EnerVista security management system must be enabled (the Enable Security check box enabled) To modify user privileges: Select the Security > User Management item from the top menu to open the user management window. Locate the username in the User field. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-15...
  • Page 224 This feature requires a CyberSentry software option. See the Order Codes section in chapter 2 for details. The EnerVista software provides the means to configure and authenticate the L60 access using either a server or the device. Access to functions depends on user role.
  • Page 225 When the "Device" button is selected, the L60 uses its local authentication database and not the RADIUS server to authenticate the user. In this case, it uses built-in roles (Administrator, Engineer, Supervisor, Operator, Observer, or Administrator and Supervisor when Device Authentication is disabled), as login accounts and the associated passwords are stored on the L60 device.
  • Page 226 Figure 5-3: Security panel when CyberSentry installed For the Device > Settings > Product Setup > Supervisory option, the panel looks like the following. Figure 5-4: Supervisory panel For the Security panel, the following settings are available. 5-18 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 227 Administrator is to re-enable Device authentication when Device authentication is disabled. To re-enable Device authentication, the Supervisor unlocks the device for setting changes, and then the Administrator can re- enable Device authentication. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-19...
  • Page 228 Range: Administrator, Engineer, Supervisor,   None Operator, Factory (for factory use only), None  CHANGE LOCAL See page 5-21   PASSWORDS  SESSION See page 5-22   SETTINGS 5-20 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 229 • Observer — This role has read-only access to all L60 settings. This role allows unlimited concurrent access but it has no download access to any files on the device. Observer is the default role if no authentication has been done to the device.
  • Page 230 In Device authentication mode, the Observer role does not have a password associated with it. In Server authentication mode the Observer role requires a password. If you are locked out of the software, contact GE Grid Solutions for the default password. When using CyberSentry, the default password is "ChangeMe1#".
  • Page 231 RS232 and RS485 connections. The default value is 1 minute. GE recommends setting this value to at least 3 minutes for the following scenario: while connected to a CyberSentry device, with serial or USB cable connected to the front panel, and performing "Add Device to Offline Window" or an online/ offline comparison.
  • Page 232 Supervisor, Engineer, Operator, Observer) in the RADIUS server. If you do, the UR relay automatically provides the authentication from the device. In the EnerVista software, choose Server authentication and log in using the user name and password configured on the RADIUS server for Server authentication login. 5-24 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 233 Clear Energy command (not applicable to all UR products) Clear Unauthorized Access command Clear Teleprotection Counters command (not applicable to all UR products) Clear All Relay Records command Role Log in L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-25...
  • Page 234: Display Properties

    Enumeration Description Role Log off In addition to supporting syslog, a L60 with CyberSentry also saves the security events in two local security files, these being SECURITY_EVENTS.CSV and SETTING_CHANGES.LOG. Details on these files and how to retrieve them are available in the EnerVista software under Maintenance >...
  • Page 235 Some customers prefer very low currents to display as zero, while others prefer the current to display even when the value reflects noise rather than the actual signal. The L60 applies a cut-off value to the magnitudes and angles of the measured currents.
  • Page 236: Graphical Front Panel

    Annunciator Editor and Single Line Diagram Editor can be open and active, then subsequently opened Rolling Mode and Home Page screens are read-only. Close the windows, then re-open the one required. 5-28 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 237 Visual and audible signals are given when conditions return to normal, then the sequence returns to normal by pushing the RESET button. – The first annunciator page that contains an annunciator window that is in abnormal state – Annunciator page 1 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-29...
  • Page 238 Similarly, the display backlight intensity is lowered to a specified level; lower intensity extends the life of the display. Each rolling page displays for a few seconds; duration cannot be set. The path is Settings > Product Setup > Graphical Panel > Rolling Mode. 5-30 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 239 Range: 1 to 10 in steps of 1 Default: 1 This setting specifies the number of rolling pages. During rolling mode, the graphical front panel displays pages from 1 to the selected number. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-31...
  • Page 240 For a phasor diagram, configure the source under Settings > System Setup > Signal Sources. The diagram is then viewable by pushing the Metering Tab pushbutton on the graphical front panel. The Metering Editor is not used for these phasor diagrams. The figures show setup and table preview. 5-32 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 241 A maximum of eight Status Inputs can be used per metering page, and 16 in all metering pages. Select the metering input from the drop-down list. The options reflect the FlexLogic operands applicable to the L60. They are inputs for all five metering pages, not just the current page.
  • Page 242 Default: 16 Set the font size to display on the graphical front panel. TEXT COLOR Range: 24-bit color selector Default: Black Set the text color to display in the specified cell. 5-34 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 243 32-bit floating-point format per IEEE 754, otherwise, the input value is represented as per the IEEE standard. For example, 1234.56789 is represented as 1234.567871094, and 9876.54321 as 9876.54296875. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-35...
  • Page 244 Settings > Product Setup > User-Programmable Self Tests (not shown). When the alarms are triggered, they display with a red background. An alarm is acknowledged by using the arrow keys on the graphical front panel then pressing the ENTER button. 5-36 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 245 Up to 20 characters can be input as the name of each annunciator page. The number of pages depends on the Layout. The name displays for the Tab pushbutton on the graphical front panel. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-37...
  • Page 246 The background color to display for any triggered cell, for example when an alarm is triggered. ACTUAL (Configure) Range: Configure Default: Configure The Configure button becomes active when the CONTENT field is set to "Actual" or "Mixed." The window specifies the metering data to display. 5-38 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 247 Avoid selecting condition operands that are likely to operate simultaneously but activate different pages, as only one page can be opened at a time. For example, do not select a single-line diagram page for breaker status open and select an annunciator page for a trip alarm. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-39...
  • Page 248: Clear Relay Records

    The Targets option displays error messages, such as wrong transceiver, similar to event record entries. 5.3.4 Clear relay records SETTINGS  PRODUCT SETUP  CLEAR RELAY RECORDS  CLEAR RELAY CLEAR FAULT REPORTS: Range: FlexLogic operand   RECORDS 5-40 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 249: Communications

    Selected records can be cleared from user-programmable conditions with FlexLogic operands. Assigning user- programmable pushbuttons to clear specific records is a typical application for these commands. Since the L60 responds to rising edges of the configured FlexLogic operands, they must be asserted for at least 50 ms to take effect.
  • Page 250 5.3.5.3 Ethernet network topology The L60 has three Ethernet ports. Each Ethernet port must belong to a different network or subnetwork. Configure the IP address and subnet to ensure that each port meets this requirement. Two subnets are different when the bitwise AND operation performed between their respective IP address and mask produces a different result.
  • Page 251 SCADA is provided through LAN2. P2 and P3 are connected to LAN2, where P2 is the primary channel and P3 is the redundant channel. In this configuration, P3 uses the IP and MAC addresses of P2. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-43...
  • Page 252 LAN2, to which port 2 (P2) is connected, and communications with SCADA on LAN3, to which port 3 (P3) is connected. There is no redundancy. Figure 5-15: Multiple LANS, no redundancy 5-44 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 253 IP addresses and mask. Configure the network IP and subnet settings before configuring the routing settings. To obtain a list of all port numbers used, for example for audit purposes, contact GE technical support with substantiating information, such as the serial number and order code of your device.
  • Page 254 2 is performed. The delay in switching back ensures that rebooted switching devices connected to the L60, which signal their ports as active prior to being completely functional, have time to completely initialize themselves and become active. Once port 2 is active again, port 3 returns to standby mode.
  • Page 255 UR 7 redundancy Failover is selected for redundancy. 5.3.5.6 Parallel Redundancy Protocol (PRP) The L60 is provided with optional PRP capability. This feature is specified as a software option at the time of ordering. See the Order Codes section in chapter 2 for details.
  • Page 256 Delete the default route by replacing the default gateway with the default value of 127.0.0.1. General conditions to be satisfied by static routes The following rules are validated internally: 5-48 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 257 Port 2 (IP address 10.1.2.2) connects the UR to LAN 10.1.2.0/24 and to the EnerVista software through Router2. Router2 has an interface on 10.1.2.0/24 and the IP address of this interface is 10.1.2.1. The configuration before release 7.10 was as follows: L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-49...
  • Page 258  MODBUS PROTOCOL MODBUS SLAVE Range: 1 to 254 in steps of 1   ADDRESS: 254 MODBUS TCP PORT Range: 0 to 65535 in steps of 1  NUMBER(502): 502 5-50 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 259 0 disables Modbus over TCP/IP, meaning closes the Modbus TCP port. When the port number is changed to 0, the change takes effect when the L60 is restarted. When it is set to 0, use the front panel or serial port to communicate with the relay.
  • Page 260 Range: 0 to 65519 in steps of 1  DEST ADDRESS: 1 DNP CURRENT SCALE Range: 0.001, 0.01. 0.1, 1, 10, 100, 1000, 10000,  FACTOR: 1 100000, 1000000, 10000000, 100000000 5-52 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 261 Range: 0 to 32 in steps of 1  CONTROL POINTS: 0 DNP TCP CONNECTION Range: 10 to 7200 s in steps of 1  TIMEOUT: 120 s DNP EVENT TIME BASE: Range: UTC, LOCAL  LOCAL L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-53...
  • Page 262 DNP ADDRESS unique address to each DNP slave. The L60 can specify a maximum of five clients for its DNP connections. These are IP addresses for the controllers to which the L60 can connect. The settings follow. SETTINGS  PRODUCT SETUP  COMMUNICATIONS  DNP PROTOCOL  DNP NETWORK CLIENT ADDRESSES ...
  • Page 263 DNP TCP connection for greater than the time specified by this setting, the connection is aborted by the L60. This frees up the connection to be re-used by a client. For any change to take effect, restart the relay.
  • Page 264 60870-5-104 point lists must be in one continuous block, any points assigned after the first “Off” point are ignored. 5.3.5.12 IEC 61850 protocol The L60 is provided with optional IEC 61850 communications. This feature is specified as a software option at the time of ordering. See the Order Codes section in chapter 2 for details.
  • Page 265 The maximum number of simultaneous clients supported by the UR family is five. EnerVista setup for IEC 61850 The EnerVista UR Setup software provides the interface to configure L60 settings for the IEC 61850 protocol. This section describes this interface. The software also supports import/export and merging of IEC 61850 Substation Configuration Language (SCL) files as documented in the UR Family Communications Guide.
  • Page 266 Figure 5-19: IEC 61850 panel Opening the IEC 61850 window while online causes the UR Setup software to retrieve and import an SCL file from the L60. This System Configuration Description (SCD) file contains all the settings in the UR at the time of the file request, both those that are mapped into the IEC 61850 information model (that is, the "public"...
  • Page 267 When the Save button is clicked in the online IEC 61850 window, UR Setup software prepares a configured IED description (CID) file containing all the settings of the UR and sends the CID file to the L60. Upon receipt, the L60 checks the CID file for correctness, going out of service, then back into service when the CID file is accepted.
  • Page 268 Default: TEMPLATE The value entered sets the IED name used by IEC 61850 for the L60. An IED name unique within the network must be entered for proper operation. Valid characters are upper and lowercase letters, digits, and the underscore (_) character.
  • Page 269 Range: status-only, direct-with-normal-security, sbo-with-normal-security Default: sbo-with-normal-security This setting specifies the control service that clients must use to control the TEST MODE FUNCTION of the L60. An "on" control to <LDName>/LLN0.Mod changes TEST MODE FUNCTION to Disabled, an "on-blocked" control changes it to Forcible, and a "test/blocked"...
  • Page 270 Protection logical device has been set to instance name "Prot", the function-related name "Feeder1Prot" and the configuration revision "2016-03-07 08:46." The text is clipped on the right if the line is longer than the available width. The next paragraphs explain how to do this setup. 5-62 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 271 Figure 5-23: Menu for logical node If the insert option is selected, or the edit option is selected for other than the Master logical device, a logical device parameters edit dialog opens. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-63...
  • Page 272 Each logical device inst name is required to be unique within the device, and it cannot be blank. Also, if the corresponding functional ldName setting is blank, the concatenation of the IED name and the logical device 5-64 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 273 The UR increments the value of paramRev by one whenever one or multiple setting changes occurs in one Modbus write request by any means (front panel, Modbus, or MMS) other than by SCL file L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-65...
  • Page 274 A v7.4 device can send an R-GOOSE message to another v7.4 device when both have R-GOOSE active as the protocol • A v7.4 device can send a GOOSE message to another v7.4 device when both have GOOSE active as the protocol 5-66 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 275 Navigate to Settings > Product Setup > Communications > IEC 61850 > GOOSE > TxGOOSE > TxGOOSE1 to access the settings for the first TxGOOSE. The settings and functionality for the others are similar. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-67...
  • Page 276 Range: 0 to 129 VisibleString characters Default: TxGOOSE1 The entered value sets the goID value published in TxGOOSE1 messages, and can be used by subscribers to discriminate the TxGOOSE1 messages from other GOOSE messages. 5-68 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 277 VID values of 0 and 1 are assigned by IEEE 802.1Q to other functions and are not to be used for GOOSE. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-69...
  • Page 278 Also, Port 3 configuration in the CID file is ignored. The Port 3 ConnectedAP elements has no meaning, as ports 2 and 3 use the port 2 MAC address, IP address, and mask. 5-70 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 279 (test field in edition 1.0 messages) are accepted only when the UR Test Mode Function setting is set to Forcible or Isolated. RxGOOSE messages can be received through any UR Ethernet port. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-71...
  • Page 280 RxGOOSE1 messages. An entered address of zero disables RxGOOSE1. If the publisher is a UR series 7.3x device, the setting needs to match the value of the publisher’s TxGOOSE DST MAC setting. 5-72 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 281 <GoCBName> is the name of the publishing control block. The L60 translates the ACSI format required for this setting to the MMS format used in GOOSE messages: <LDName>/LLN0$GO$<GoCBName> If the publisher is a UR 7.3x or 7.40 series device, <LDName> is the value of the publisher's Master functional ldName setting if that setting is not empty, otherwise it is the value of the publisher's IED NAME suffixed with "Master".
  • Page 282 7.40 UR Setup RxGOOSE Inputs pages. In this case the Member setting displays as the product-related name used by the publishing IED of the data object or data attribute, in standard SCSM format (e.g. Publisher1LD1/LLN0$ST$Off$stVal). 5-74 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 283 (supported in version 7.40 and later). When the file format is SCD, the system lists all IEDs inside the SCD file and lets the user select the ones to add. The figure shows a selection being made by importing a CID file using the Add IED function. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-75...
  • Page 284 This setting selects the logic state for the RxGOOSE Boolean1 FlexLogic operand if the UR has just completed startup and the selected RxGOOSE has not yet received a message, or the selected RxGOOSE has lost its connectivity with the publisher. The following choices are available: 5-76 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 285 Default: None This setting selects the GOOSE message containing the value that drives the RxGOOSE DPS1 FlexLogic operand. If set to None, the RxGOOSE DPS1 FlexLogic operand assumes its default state. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-77...
  • Page 286 (supported in version 7.40 and later). When the file format is SCD, the system lists all IEDs inside the SCD file and lets the user select the ones to add. Figure 5-31: RxGOOSE Analog Inputs panel There are 32 RxGOOSE analog inputs. 5-78 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 287 Range: 0.000 to 1000000000.000 in steps of 0.001 Default: 1.000 This setting specifies the per-unit base value for other L60 features to use with the RxGOOSE Analog1 operand. A FlexElement for instance subtracts two quantities after converting their values to integers rescaled to a common base, the common base being the largest of the base values of the two quantities.
  • Page 288 RptEna attribute is false. Buffered and unbuffered reports Navigate to Settings > Product Setup > Communications > IEC 61850 > Reports > Buffered Reports or Unbuffered Reports. 5-80 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 289 Also, the control block can be configured to send integrity reports containing the present value of all members either on demand from the client or periodically. A TCP handshaking mechanism causes messages that are not read and acknowledged by the client to be retransmitted. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-81...
  • Page 290 Control blocks and data sets can be pre-configured by sending the L60 a CID file. See the UR Family Communications Guide for details. EnerVista UR Setup also can be used to select the data set members and to pre-configure the control blocks.
  • Page 291 This setting selects the data set whose members' status is reported in Unbuffered Report1 messages using the UR Setup software designator for the data set. The IEC 61850 name of the data sets are configured in the Datasets panel, as described later. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-83...
  • Page 292 DataSets Navigate to Settings > Product Setup > Communications > IEC 61850 > DataSets. 5-84 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 293 The DataSet name is not copied or pasted. In short, use this feature to copy a DataSet Member setting and paste it into another Member setting, a text file, or Word, as examples. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-85...
  • Page 294 Select the member from the drop-down list. Or right-click an entry to copy, paste, delete, or insert. Product setup Navigate to Settings > Product Setup > Communications > IEC 61850 > Product Setup. 5-86 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 295 Deadband parameters of measured values related to the Energy metering are configured here. Real Time Clock Navigate to Settings > Product Setup > Communications > IEC 61850 > Product Setup > Real Time Clock. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-87...
  • Page 296 However, a tabulation of the analog values and their associated deadband setting can be found in the UR Family Communications Guide. 5-88 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 297 Auxiliary voltage — 275 x auxiliary VT ration setting • Power (real, reactive, apparent, 3-phase, and 1-phase) — 4 × phase CT primary setting × 1.5 × VT Secondary setting × VT ratio setting L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-89...
  • Page 298 While the selected operand is asserted, Bkr0XCBR1.Loc.stVal is true and IEC 61850 commands to BkrCSWI1.Pos and Bkr0XCBR1.Pos are not accepted, and a Negative Response (-Rsp) is issued with the REASON CODE of Blocked-by- switching-hierarchy. 5-90 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 299 Bkr0XCBR1.BlkOpn.ctlVal signal on the Breaker Control Logic (Sheet 1 of 2) diagram in the Settings > System Setup section later. This signal when true blocks breaker 1 trip control while the operand selected by setting XCBR1 ST.LOC OPERAND is not active. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-91...
  • Page 300 Navigate to Settings > Product Setup > Communications > IEC 61850 > System Setup > Switches > Switch 1 to access the settings that configure the IEC 61850 protocol interface with the first disconnect switch control and status monitoring element. The settings and functionality for the others are similar. 5-92 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 301 > System Setup section later. These signals force a disconnect switch trip or close control while the operand selected by setting XSWI1 ST.LOC OPERAND is not active. "sbo" here is select-before-operate. Enhanced security means that the L60 reports to the client the disconnect switch 1 position the end of the command sequence.
  • Page 302 SelectEditSG. The setting related to these IEC 61850 commands are described here. Navigate to Settings > Product Setup > Communications > IEC 61850 > Control Elements > Setting Groups to access the setting that configures the IEC 61850 setting group commands. 5-94 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 303 Navigate to Settings > Product Setup > Communications > IEC 61850 > Settings for Commands to access the settings that configure the IEC 61850 protocol interface for record clear commands. Figure 5-43: Commands panel L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-95...
  • Page 304 This setting selects the control model clients must use to successfully control the command CLEAR FAULT REPORTS. "sbo" here is select-before-operate. Enhanced security means that the L60 reports to the client the breaker 1 position at the end of the command sequence.
  • Page 305 Navigate to Settings > Product Setup > Communications > IEC 61850 > GGIO > GGIO2 to access the settings that configure the IEC 61850 protocol interface for Virtual Input commands. Figure 5-45: GGIO2 panel L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-97...
  • Page 306 <LDName>/GGIO4.AnIn01.instMag.f. The value of the FlexAnalog operand is converted automatically to the format and scaling required by the standard, that is to say primary amperes, primary volts, and so on. See Appendix A for a list of FlexAnalog operands. 5-98 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 307 File transfer by IEC 61850 The L60 supports file transfer by IEC 61850. The approach is as follows, using the SISCO AX-S4 61850 client software as an example. In the AX-S4 61850 Explorer window, click the Tools menu and access the SISCO File Transfer Utility.
  • Page 308 NUMBER(80): 80 The L60 contains an embedded web server and can display pages in a web browser. The web pages are organized as a series of menus that can be accessed starting at the L60 “Main Menu.” Web pages are read-only and are available showing DNP and IEC 60870-5-104 points lists, Modbus registers, event records, fault reports, and so on.
  • Page 309 NUMBER: 0 The Trivial File Transfer Protocol (TFTP) can be used to transfer files from the L60 over a network. The L60 operates as a TFTP server. TFTP client software is available from various sources, including Microsoft Windows NT. The dir.txt file obtained from the L60 contains a list and description of all available files, for example event records and oscillography.
  • Page 310 COMMUNICATIONS  PROTOCOL connected to a maximum of two masters (usually either an RTU or a SCADA master station). Since the L60 maintains two sets of IEC 60870-5-104 data change buffers, ideally no more than two masters actively communicate with the L60 at one time.
  • Page 311 PTP, or SNTP, its time is overwritten by these three sources, if any of them is active. If the synchronization timeout occurs and none of IRIG-B, PTP, or SNTP is active, the L60 sets the invalid bit in the time stamp of a time-tagged message.
  • Page 312 Spontaneous transmission occurs as a response to cyclic Class 2 requests. If the L60 wants to transmit Class 1 data at that time, it demands access for Class 1 data transmission (ACD=1 in the control field of the response).
  • Page 313 INFORMATION NUMBER (INF) as defined in IEC 60870-103. For any change to take effect, restart the relay. — This is the cyclic period used by the L60 to decide when a measurand ASDU is included in a SCAN TIMEOUT (SCAN TOUT) response.
  • Page 314 FlexAnalog operands. The measurands sent are voltage, current, power, power factor, and frequency. If any other FlexAnalog is chosen, the L60 sends 0 instead of its value. Note that the power is transmitted in KW, not W. Measurands are transmitted as ASDU 3 or ASDU 9 (type identification value set to measurands I, respectively measurands II).
  • Page 315 Commands are received as General Command (Type Identification 20). The user can configure the action to perform when an ASDU command comes. A list of available mappings is provided on the L60. This includes 64 virtual inputs (see the following table). The ON and OFF for the same ASDU command can be mapped to different virtual inputs.
  • Page 316: Modbus User Map

    ADDRESS The UR Family Communications Guide outlines the Modbus memory map. The map is also viewable in a web browser; enter the IP address of the L60 in a web browser and click the option. 5.3.7 Real-time clock 5.3.7.1 Menu SETTINGS ...
  • Page 317 Setup for IRIG-B is illustrated in the Installation chapter. For the Other protocols, whenever a time synchronization message is received through any of the active protocols, the L60 clock updates. However, given that IEC 60870-5-103, IEC 60870-5-104, Modbus, and DNP are low-accuracy time synchronization methods, avoid their use for synchronization when better accuracy time protocols, such as IRIG-B and PTP, are active in the system.
  • Page 318 See the Order Codes section in chapter 2 for details. The L60 supports the Precision Time Protocol (PTP) specified in IEEE Std 1588 2008 using the Power Profile (PP) specified in IEEE Std C37.238 2011. This enables the relay to synchronize to the international time standard over an Ethernet network that implements PP.
  • Page 319 Range: Enabled, Disabled  Disabled  SNTP SERVER IP ADDR: Range: standard IP address format  0.0.0.0 SNTP UDP PORT Range: 1 to 65535 in steps of 1  NUMBER: 123 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-111...
  • Page 320 L60 clock is closely synchronized with the SNTP/ NTP server. It takes up to two minutes for the L60 to signal an SNTP self-test error if the server is offline.
  • Page 321: Fault Reports

    MAG: 0.00 Ω The L60 relay supports one fault report and an associated fault locator per CT bank to a maximum of two. The signal source and trigger condition, as well as the characteristics of the line or feeder, are entered in this menu.
  • Page 322 Also, the relay checks if the auxiliary signal configured is marked as “Vn” by the user (under VT setup) and inhibits the fault location if the auxiliary signal is labeled differently. 5-114 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 323: Oscillography

    ACTUAL VALUES  menu to view the number of cycles captured per record. The following table provides sample RECORDS  OSCILLOGRAPHY configurations with corresponding cycles/record. The minimum number of oscillographic records is three. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-115...
  • Page 324 To populate quickly the rows in the Offline Window, use Ctrl C/V to copy/paste, or click then double-click a row to display a quick selection window. Figure 5-49: Quick selection window 5-116 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 325: Data Logger

    The relay automatically partitions the available memory between the channels in use. The following table outlines examples of storage capacities for a system frequency of 60 Hz. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-117...
  • Page 326: Demand

    SETTINGS  PRODUCT SETUTP  DEMAND  DEMAND CRNT DEMAND METHOD: Range: Thermal Exponential, Block Interval, Rolling  Thermal Exponential Demand  POWER DEMAND METHOD: Range: Thermal Exponential, Block Interval, Rolling  Thermal Exponential Demand 5-118 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 327 Start Demand Interval logic input pulses. Each new value of demand becomes available at the end of each pulse. Assign a FlexLogic operand to the setting to program the input for the new DEMAND TRIGGER demand interval pulses. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-119...
  • Page 328: User-programmable Leds

    5.3.12.3 LED test SETTINGS  PRODUCT SETUP  USER-PROGRAMMABLE LEDS  LED TEST  LED TEST LED TEST FUNCTION: Range: Disabled, Enabled   Disabled LED TEST CONTROL: Range: FlexLogic operand  5-120 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 329 The test responds to the position and rising edges of the control input defined by the LED TEST CONTROL setting. The control pulses must last at least 250 ms to take effect. The following diagram explains how the test is executed. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-121...
  • Page 330 2. When stage 2 is completed, stage 3 starts automatically. The test can be cancelled at any time by pressing the pushbutton. 5-122 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 331 AR ENABLED LED 10 operand BREAKER 1 CLOSED LED 22 operand AR DISABLED LED 11 operand BREAKER 1 TROUBLE LED 23 operand AR RIP LED 12 operand LED 24 operand AR LO L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-123...
  • Page 332: User-programmable Self-tests

    Range: Disabled, Enabled  FUNCTION: Disabled THIRD ETHERNET FAIL Range: Disabled, Enabled  FUNCTION: Disabled SFP MODULE FAIL Range: Disabled, Enabled  FUNCTION: Disabled BATTERY FAIL Range: Disabled, Enabled  FUNCTION: Enabled 5-124 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 333: Control Pushbuttons

    The location of the control pushbuttons are shown in the following figures. Figure 5-52: Control pushbuttons (enhanced front panel) An additional four control pushbuttons are included on the standard front panel when the L60 is ordered with the 12 user- programmable pushbutton option.
  • Page 334: User-programmable Pushbuttons

    SETTINGS  PRODUCT SETUP  USER-PROGRAMMABLE PUSHBUTTONS  USER PUSHBUTTON 1(16)  USER PUSHBUTTON 1 PUSHBUTTON 1 Range: Self-Reset, Latched, Disabled  FUNCTION: Disabled  PUSHBTN 1 ID TEXT: Range: up to 20 alphanumeric characters  USER PB 1 5-126 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 335  EVENTS: Disabled The L60 is provided with this optional feature, specified as an option at the time of ordering. Using the order code for your device, see the order codes in chapter 2 for details. User-programmable pushbuttons provide an easy and error-free method of entering digital state (on, off) information. The number depends on the front panel ordered.
  • Page 336 Each pushbutton has an associated LED indicator. By default, this indicator displays the present status of the corresponding pushbutton (on or off). However, each LED indicator can be assigned to any FlexLogic operand through the setting. PUSHBTN 1 LED CTL 5-128 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 337 Displays section in this chapter for instructions on how to enter alphanumeric characters from the keypad. On a graphical front panel, this setting instead controls the label of the user-programmable pushbutton component on single- line diagrams. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-129...
  • Page 338 To allow front panel keypad operation, when a keypad button is pressed the message is supressed for 10 seconds. — If this setting is enabled, each user-programmable pushbutton state change is logged as an PUSHBUTTON 1 EVENTS event into the event recorder. 5-130 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 339 CHAPTER 5: SETTINGS PRODUCT SETUP The figures show the user-programmable pushbutton logic. Figure 5-58: User-programmable pushbutton logic (Sheet 1 of 2) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-131...
  • Page 340: Flex State Parameters

    The state bits can be read out in the “Flex States” register array beginning at Modbus address 0900h. Sixteen states are packed into each register, with the lowest-numbered state in the lowest-order bit. Sixteen registers accommodate the 256 state bits. 5-132 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 341: User-definable Displays

    When this type of entry occurs, the sub-menus are automatically configured with the proper content—this content can be edited subsequently. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-133...
  • Page 342 If the parameters for the top line and the bottom line items have the same units, then the unit is displayed on the bottom line only. The units are only displayed on both lines if the units specified both the top and bottom line items are different. 5-134 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 343: Direct Inputs And Outputs

    DIRECT OUTPUT DEVICE ID messages. All UR-series IEDs in a ring need to have unique numbers assigned. The IED ID is used to identify the sender of the direct input and output message. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-135...
  • Page 344 DIRECT I/O DATA RATE setting applies to a L60 with dual-channel communication cards and allows crossing DIRECT I/O CHANNEL CROSSOVER over messages from channel 1 to channel 2. This places all UR-series IEDs into one direct input and output network regardless of the physical media of the two communication channels.
  • Page 345 DIRECT I/O CH2 RING CONFIGURATION: “Yes” For UR-series IED 2: DIRECT OUTPUT DEVICE ID: “2” DIRECT I/O CH1 RING CONFIGURATION: “Yes” DIRECT I/O CH2 RING CONFIGURATION: “Yes” For UR-series IED 3: L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-137...
  • Page 346 A permissive pilot-aided scheme can be implemented in a two-ring configuration, shown as follows (IEDs 1 and 2 constitute a first ring, while IEDs 2 and 3 constitute a second ring). 5-138 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 347 In this application, apply the following settings. For UR-series IED 1: DIRECT OUTPUT DEVICE ID: “1” DIRECT I/O CH1 RING CONFIGURATION: “Yes” DIRECT I/O CH2 RING CONFIGURATION: “Yes” For UR-series IED 2: L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-139...
  • Page 348 EVENTS: Disabled The L60 checks integrity of the incoming direct input and output messages using a 32-bit CRC. The CRC alarm function is available for monitoring the communication medium noise by tracking the rate of messages failing the CRC check. The monitoring function counts all incoming messages, including messages that failed the CRC check.
  • Page 349: Teleprotection

     EVENTS: Disabled The L60 checks integrity of the direct input and output communication ring by counting unreturned messages. In the ring configuration, all messages originating at a given device should return within a pre-defined period of time. The unreturned messages alarm function is available for monitoring the integrity of the communication ring by tracking the rate of unreturned messages.
  • Page 350: Installation

    Range: 1 to 65000 A in steps of 1  PRIMARY:  PHASE CT F1 Range: 1 A, 5 A  SECONDARY: 1 A GROUND CT F1 Range: 1 to 65000 A in steps of 1  PRIMARY: 5-142 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 351 SRC 4 = F1 + L1 Eq. 5-7 where L60 allows CT bank summation in SRC 3 or 4. 1 pu is the highest primary current. In this case, 1000 is entered and the secondary current from the 500:1 ratio CT is adjusted to that created by a 1000:1 CT before summation.
  • Page 352: Power System

    “Disabled” only in unusual circumstances; consult GE Grid Solutions for special variable- FREQUENCY TRACKING frequency applications. The frequency tracking feature functions only when the L60 is in the “Programmed” mode. If the L60 is “Not Programmed,” then metering values are available but can exhibit significant errors. 5-144...
  • Page 353: Signal Sources

    When two CTs are connected and configured with these settings, it is imperative that the CT rated secondary current is identical for both CTs (that is, both CTs are 1 A rated or both CTs are 5 A rated). L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-145...
  • Page 354 0.02 pu; thus by default the disturbance detector responds to a change of 0.04 pu. The metering sensitivity setting ) controls the sensitivity of the disturbance detector PRODUCT SETUP  DISPLAY PROPERTIES  CURRENT CUT-OFF LEVEL accordingly. 5-146 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 355 Figure 5-68: Example of use of sources Y LV D HV SRC 1 SRC 2 SRC 3 Phase CT F1+F5 None Ground CT None None Phase VT None None Aux VT None None L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-147...
  • Page 356: Breakers

    MANUAL CLOSE RECAL1 Range: 0.000 to 65.535 s in steps of 0.001  TIME: 0.000 s BREAKER 1 OPEN Range: 0.000 to 65.535 s in steps of 0.001  SEAL-IN: 0.000 s 5-148 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 357 — Selects an operand that when activated, and unless blocked, initiates the Breaker 1 open and individual BREAKER 1 OPEN phase trip commands. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-149...
  • Page 358 If this setting is set to Off, the racked status is not considered. IEC 61850 functionality is permitted when the L60 device is in "Programmed" mode and not in local control mode. 5-150...
  • Page 359 CHAPTER 5: SETTINGS SYSTEM SETUP Figure 5-69: Dual breaker control logic (Sheet 1 of 3) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-151...
  • Page 360 SYSTEM SETUP CHAPTER 5: SETTINGS Figure 5-70: Dual breaker control logic (Sheet 2 of 3) 5-152 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 361: Disconnect Switch Control

      FUNCTION: Disabled SWITCH 1 NAME: Range: up to six alphanumeric characters  SW 1 SWITCH 1 MODE: Range: 3-Pole, 1-Pole  3-Pole SWITCH 1 OPEN: Range: FlexLogic operand  L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-153...
  • Page 362 — This setting selects “3-Pole” mode, where disconnect switch poles have a single common auxiliary SWITCH 1 MODE switch, or “1-Pole” mode where each disconnect switch pole has its own auxiliary switch. 5-154 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 363 — This setting specifies the delay interval during which a disagreement of status among the pole SWITCH 1 ALARM DELAY position tracking operands do not declare a pole disagreement. This allows for non-simultaneous operation of the poles. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-155...
  • Page 364 CHAPTER 5: SETTINGS IEC 61850 functionality is permitted when the L60 is in “Programmed” mode and not in local control mode. The switch element has direct hard-coded connections to the IEC 61850 model as shown in the logic diagrams. This allows remote open/close operation of each switch, using either CSWI or XSWI IEC 61850 logical nodes.
  • Page 365 CHAPTER 5: SETTINGS SYSTEM SETUP Figure 5-73: Disconnect switch control status logic (sheet 2 of 3) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-157...
  • Page 366: Flexcurves

    FlexCurve, enter the reset and operate times (using the keys) for each selected pickup point (using the VALUE up/down keys) for the required protection curve (A, B, C, or D). MESSAGE 5-158 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 367 The recloser curve configuration window shown here appears when the Initialize From setting in the EnerVista software is set to “Recloser Curve” and the Initialize FlexCurve button is clicked. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-159...
  • Page 368 MRT and from then onwards the operating time remains at 200 ms. Figure 5-76: Composite recloser curve with HCT disabled With the HCT feature enabled, the operating time reduces to 30 ms for pickup multiples exceeding eight times pickup. 5-160 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 369 EnerVista software generates an error message and discards the proposed changes. 5.4.6.5 Standard recloser curves The following graphs display standard recloser curves available for the L60. Figure 5-78: Recloser curves GE101 to GE106 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 370 SYSTEM SETUP CHAPTER 5: SETTINGS Figure 5-79: Recloser curves GE113, GE120, GE138, and GE142 Figure 5-80: Recloser curves GE134, GE137, GE140, GE151, and GE201 5-162 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 371 CHAPTER 5: SETTINGS SYSTEM SETUP Figure 5-81: Recloser curves GE131, GE141, GE152, and GE200 Figure 5-82: Recloser curves GE133, GE161, GE162, GE163, GE164, and GE165 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-163...
  • Page 372 SYSTEM SETUP CHAPTER 5: SETTINGS Figure 5-83: Recloser curves GE116, GE117, GE118, GE132, GE136, and GE139 Figure 5-84: Recloser curves GE107, GE111, GE112, GE114, GE115, GE121, and GE122 5-164 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 373: Flexlogic

    FlexLogic. In general, the system receives analog and digital inputs that it uses to produce analog and digital outputs. The figure shows major subsystems of a generic UR-series relay involved in this process. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-165...
  • Page 374 Figure 5-86: UR architecture overview The states of all digital signals used in the L60 are represented by flags (or FlexLogic operands, which are described later in this section). A digital “1” is represented by a set flag. Any external contact change-of-state can be used to block an element from operating, as an input to a control feature in a FlexLogic equation, or to operate a contact output.
  • Page 375 The following table lists the operands available for the relay. The operands can be viewed online by entering the IP address of the relay in a web browser and accessing the Device Information Menu. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-167...
  • Page 376 Advanced fault detector low, positive-sequence current has operated 87PC I_1 FDH OP Advanced fault detector high, positive-sequence current has operated 87PC RX1 Received pulse on channel 1 87PC RX2 Received pulse on channel 2 5-168 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 377 Breaker failure 1 timer 3 is operated BKR FAIL 1 TRIP OP Breaker failure 1 trip is operated BKR FAIL 2 Same set of operands as shown for BKR FAIL 1 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-169...
  • Page 378 CT FAIL 1 PKP CT fail has picked up CT fail CT FAIL 1 OP CT fail has dropped out CT FAIL 2 to 4 Same set of operands as per CT FAIL 1 5-170 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 379 Negative-sequence directional overcurrent 1 reverse has operated directional NEG SEQ DIR OC2 FWD Negative-sequence directional overcurrent 2 forward has operated overcurrent NEG SEQ DIR OC2 REV Negative-sequence directional overcurrent 2 reverse has operated L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-171...
  • Page 380 Phase B directional 1 block overcurrent PH DIR1 BLK C Phase C directional 1 block PH DIR1 BLK Phase directional 1 block PH DIR2 Same set of operands as shown for PH DIR1 5-172 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 381 Phase A of phase time overcurrent 1 has dropped out PHASE TOC1 DPO B Phase B of phase time overcurrent 1 has dropped out PHASE TOC1 DPO C Phase C of phase time overcurrent 1 has dropped out L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-173...
  • Page 382 Source 1 VT neutral wire open detected. When the VT is connected in Delta, do not enable this function because there is no neutral wire for Delta connected VT. SRC2 VT FUSE FAIL Same set of operands as shown for SRC1 VT FF 5-174 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 383 Thermal overload protection 1 picked up Thermal overload THERMAL PROT 1 OP Thermal overload protection 1 operated protection THERMAL PROT 2 Same set of operands as shown for THERMAL PROT 1 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-175...
  • Page 384 Flag is set, logic=1 Virtual inputs Virt Ip 2 On Flag is set, logic=1 Virt Ip 3 On Flag is set, logic=1 ↓ ↓ Virt Ip 64 On Flag is set, logic=1 5-176 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 385 Asserted when a password entry fails while accessing a password protected level of the L60 RxGOOSE RxGOOSE 1 On Flag is set, logic=1 ↓ ↓ RxGOOSE 64 On Flag is set, logic=1 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-177...
  • Page 386 ID of any of these operands, the assigned name appears in the relay list of operands. The default names are shown in the FlexLogic operands table. The characteristics of the logic gates are tabulated in the following table, and the operators available in FlexLogic are listed in the FlexLogic operators table. 5-178 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 387: Flexlogic Rules

    Assigning the output of an operator to a virtual output terminates the equation. A timer operator (for example, "TIMER 1") or virtual output assignment (for example, " = Virt Op 1") can be used once L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-179...
  • Page 388: Flexlogic Evaluation

    Inspect each operator between the initial operands and final virtual outputs to determine if the output from the operator is used as an input to more than one following operator. If so, the operator output must be assigned as a virtual output. 5-180 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 389 Figure 5-89: Logic for virtual output 3 Prepare a logic diagram for virtual output 4, replacing the logic ahead of virtual output 3 with a symbol identified as virtual output 3, shown as follows. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-181...
  • Page 390 Assume for this example that the state is to be ON for a closed contact. The operand is therefore “Cont Ip H1c On”. 5-182 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 391 [88] Virt Ip 1 On [89] DIG ELEM 1 PKP [90] XOR(2) [91] Virt Op 3 On [92] OR(4) [93] LATCH (S,R) [94] Virt Op 3 On [95] TIMER 1 [96] Cont Ip H1c On L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-183...
  • Page 392 Virt Op 2 On Virt Ip 1 On DIG ELEM 1 PKP XOR(2) Virt Op 3 On OR(4) LATCH (S,R) Virt Op 3 On TIMER 1 Cont Ip H1c On OR(3) 5-184 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 393: Flexlogic Equation Editor

    Range: up to six alphanumeric characters  FxE 1 FLEXELEMENT 1 +IN: Range: Off, any analog actual value parameter  FLEXELEMENT 1 -IN: Range: Off, any analog actual value parameter  L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-185...
  • Page 394 The element can be programmed to respond either to a signal level or to a rate-of-change (delta) over a pre-defined period of time. The output operand is asserted when the operating signal is higher than a threshold or lower than a threshold, as per your choice. 5-186 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 395 — Enables the relay to respond to either high or low values of the operating signal. The following FLEXELEMENT 1 DIRECTION figure explains the application of the , and FLEXELEMENT 1 DIRECTION FLEXELEMENT 1 PICKUP FLEXELEMENT 1 HYSTERESIS settings. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-187...
  • Page 396 Figure 5-95: FlexElement direction, pickup, and hysteresis In conjunction with the setting, the element can be programmed to provide two extra FLEXELEMENT 1 INPUT MODE characteristics, as shown in the following figure. 5-188 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 397 (Brk X Arc Amp A, B, and C) DCmA BASE = maximum value of the DCMA INPUT MAX setting for the two transducers configured under the +IN and –IN inputs DELTA TIME BASE = 1 µs L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-189...
  • Page 398: Non-volatile Latches

    Typical applications include sustaining operator commands or permanently blocking relay functions, such as Autorecloser, until a deliberate interface action resets the latch. — This setting characterizes Latch 1 to be Set- or Reset-dominant. LATCH 1 TYPE 5-190 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 399: Grouped Elements

    SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  SETTING GROUP 1  PHASE COMPARISON See below    ELEMENTS  LINE PICKUP See page 5-210    DISTANCE See page 5-213   L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-191...
  • Page 400: Phase Comparison Elements

    87PC SCHEME SELECT: Range: 2TL-TR-SPC-2FC, 2TL-BL-SPC-2FC,  2TL-TR-SPC-2FC 2TL-TR-DPC-3FC, and so on 87PC BLOCK: Range: FlexLogic operand  87PC SIGNAL SOURCE: Range: One Source Current, Two Sources Current  One Source Current 5-192 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 401 87PC TRANS BLOCK Range: 0 to 65.535 s in steps of 0.001  PICKUP: 0.030 s 87PC TRANS BLOCK Range: 0 to 65.535 s in steps of 0.001  RESET: 0.030 s L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-193...
  • Page 402 CTs summed externally) or from two separate sources (breaker-and-a-half or ring configurations), where currents from both CTs are fed into the L60 individually. — A mixed I_2 – K × I_1 signal, mixed I_1+I_2 / K signal, or single 3I_0 signal can be chosen as the operating 87PC SIGNAL signal for the FDH and FDL detectors and positive/negative square pulses generation.
  • Page 403 This value is typically set to 1.25 cycles in dual comparison applications and 2 cycles in single comparison applications. — This setting is used to select the stability angle for trip security. 87PC STABILITY ANGLE L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-195...
  • Page 404 FlexLogic execution and sending trip command directly from the 87PC function to the contact output. These setting are used for breaker 1 and 2 (if used) trip coil connections. 5-196 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 405 CT/VT module to CPU trip pulse Tx Pos Transmit signal per 87PC logic Tx Neg Transmit signal per 87PC logic FDH Aligned See the Application of Settings chapter for calculation examples for the phase comparison elements. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-197...
  • Page 406 CH1 ASYMMETRY 87PC CH2 ASYMMETRY oscillography for commissioning, troubleshooting, and analysis purposes. The L60 features excellent stability during channel noise due to the high sampling rate of the received signal, and the unique integrator makes the digital phase- comparison relay fully equivalent to analogue phase-comparison relays.
  • Page 407 CHAPTER 5: SETTINGS GROUPED ELEMENTS Figure 5-99: Overall phase comparison logic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-199...
  • Page 408 NEG SEQ VOL FDL Range: 0.005 to 3.000 pu in steps of 0.001  PICKUP: 0.010 pu NEG SEQ VOL FDH Range: 0.005 to 3.000 pu in steps of 0.001  PICKUP: 0.050 pu 5-200 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 409 87PC targets. — This setting controls event recording of the function. These events are logged independently from NEG SEQ VOL FD EVENTS the 87PC events. Figure 5-100: Negative-sequence voltage fault detector logic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-201...
  • Page 410 — This setting controls targets of the function. These targets operate independently from the 87PC NEG SEQ di/dt FD TARGET targets. — This setting controls event recording of the function. These events are logged independently NEG SEQ di/dt FD EVENTS from the 87PC events. 5-202 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 411 — This setting controls pickup of the low set stage of the element used to control the key POS SEQ di/dt FDL PICKUP operation. Nominal current of the phase CT bank of the relay is 1 pu. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-203...
  • Page 412 PICKUP: 0.50 pu NEG SEQ I_2 BLK: Range: FlexLogic operand  NEG SEQ I_2 FD Range: Self-Reset, Latched, Disabled  TARGET: Self-reset NEG SEQ I_2 FD Range: Disabled, Enabled  EVENTS: Disabled 5-204 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 413 PICKUP: 0.50 pu POS SEQ I_1 BLK: Range: FlexLogic operand  POS SEQ I_1 FD Range: Self-Reset, Latched, Disabled  TARGET: Self-reset POS SEQ I_1 FD Range: Disabled, Enabled  EVENTS: Disabled L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-205...
  • Page 414 As such, it is critical to ensure that three-phase line voltage is assigned to this source and voltage bank settings are entered correctly. Half (or one-third for the three-terminal line, as defined by the setting) 87PC SCHEME SELECT of the line charging current is subtracted from the line current. 5-206 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 415 SEQ CAPACITIVE REACTANCE No shunt reactors on the line or reactor current is subtracted from the line current, forcing the L60 to measure the uncompensated by shunt reactors load/fault current plus the full charging current.
  • Page 416 • If a line is open at one end, the phase comparison element is unable to detect an internal fault and give trip permission to the remote terminal relay. 5-208 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 417 — The weak-infeed keying function incorporates a default 35 ms reset delay to assure reset WEAK-INFEED RESET DELAY coordination with the FDH trip-level fault detector at the remote terminal during fault clearing. The default reset time can be changed according to local conditions. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-209...
  • Page 418: Line Pickup

    LINE END OPEN RESET Range: 0.000 to 65.535 s in steps of 0.001  DELAY: 0.090 s LINE PICKUP OV PKP Range: 0.000 to 65.535 s in steps of 0.001  DELAY: 0.040 s 5-210 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 419 When this setting is enabled (the default value), the coordination timer is bypassed. Disable this setting (removing the bypass and inserting the timer) if high speed autoreclosure is employed. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-211...
  • Page 420 — Assertion of the FlexLogic operand assigned to this setting blocks operation of the line pickup LINE PICKUP BLOCK element. — This setting enables and disables the logging of line pickup events in the sequence of events LINE PICKUP EVENTS recorder. Figure 5-107: Line pickup logic 5-212 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 421: Distance

    (logic 1), the distance functions become memory-polarized regardless of the positive-sequence voltage magnitude at this time. When the selected operand is de-asserted (logic 0), the distance functions follow other conditions of the memory voltage logic. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-213...
  • Page 422 1 to zone 3. PH DIST PH SELECT SUPV The distance zones of the L60 are identical to that of the D60 Line Distance Relay. Figure 5-108: Memory voltage logic 5.6.5.2 Phase distance (ANSI 21P, IEC PDIS) SETTINGS ...
  • Page 423 Ensure that the Phase VT Secondary Voltage setting (see the SETTINGS  SYSTEM SETUP  AC INPUTS menu) is set correctly to prevent improper operation of associated memory  VOLTAGE BANK action. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-215...
  • Page 424 The selection is available on a per-zone basis. The two characteristics and their possible variations are shown in the following figures. Figure 5-109: Directional mho phase distance characteristic Figure 5-110: Non-directional mho phase distance characteristic 5-216 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 425 CHAPTER 5: SETTINGS GROUPED ELEMENTS Figure 5-111: Directional quadrilateral phase distance characteristic Figure 5-112: Non-directional quadrilateral phase distance characteristic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-217...
  • Page 426 GROUPED ELEMENTS CHAPTER 5: SETTINGS Figure 5-113: Mho distance characteristic sample shapes 5-218 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 427 Therefore, the Z3 setting is set to “None.” See the Application of Settings chapter for information on calculating distance reach settings in applications involving power transformers. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-219...
  • Page 428 — This setting defines the angle of the reverse reach impedance of the non-directional zone PHS DIST Z1 REV REACH RCA setting). This setting does not apply when the zone direction is set to "Forward" or "Reverse." PHS DIST Z1 DIR 5-220 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 429 — This setting enables the user to select a FlexLogic operand to block a given distance element. VT fuse fail PHS DIST Z1 BLK detection is one of the applications for this setting. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-221...
  • Page 430 2 operation when the fault evolves from one type to another or migrates from the initial zone to zone 2. Assign the required zones in the trip output function to accomplish this functionality. 5-222 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 431 CHAPTER 5: SETTINGS GROUPED ELEMENTS Figure 5-118: Phase distance zones 3 and higher OP logic Figure 5-119: Phase distance logic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-223...
  • Page 432 GND DIST Z1 VOLT Range: 0.000 to 5.000 pu in steps of 0.001  LEVEL: 0.000 pu GND DIST Z1 Range: 0.000 to 65.535 s in steps of 0.001  DELAY: 0.000 s 5-224 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 433 The figures show the directional and non-directional quadrilateral ground distance characteristics. The directional and non-directional mho ground distance characteristics are the same as those shown for the phase distance element in the previous section. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-225...
  • Page 434 If this compensation is required, the ground current from the parallel line (3I_0) measured in the direction of the zone being compensated must be connected to the ground input CT of the CT bank 5-226 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 435 In conjunction with the quadrilateral characteristic, this setting improves security for faults close to the reach point by adjusting the reactance boundary into a tent-shape. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-227...
  • Page 436 — This setting enables the user to select a FlexLogic operand to block the given ground distance element. GND DIST Z1 BLK VT fuse fail detection is one of the applications for this setting. 5-228 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 437 2 operation if the fault evolves from one type to another or migrates from zone 3 or 4 to zone 2. Assign the required zones in the trip output element to accomplish this functionality. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-229...
  • Page 438 GROUPED ELEMENTS CHAPTER 5: SETTINGS Figure 5-124: Ground distance zones 3 and higher OP scheme 5-230 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 439 CHAPTER 5: SETTINGS GROUPED ELEMENTS Figure 5-125: Ground distance zone 1 pickup logic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-231...
  • Page 440 Otherwise, the reverse fault condition that generates concern has high polarizing levels so that a correct reverse fault decision can be reliably made. The supervision for zones 2 and 3 is removed during open pole conditions. 5-232 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 441: Power Swing Detect (ansi 68)

    RCA: 75° POWER SWING OUTER Range: 40 to 140° in steps of 1  LIMIT ANGLE: 120° POWER SWING MIDDLE Range: 40 to 140° in steps of 1  LIMIT ANGLE: 90° L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-233...
  • Page 442 Different protection elements respond differently to power swings. If tripping is required for faults during power swing conditions, some elements can be blocked permanently (using the operand), and others can be POWER SWING BLOCK blocked and dynamically unblocked upon fault detection (using the operand). POWER SWING UN/BLOCK 5-234 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 443 The element can be set to use either lens (mho) or rectangular (quadrilateral) characteristics, as shown in the figure. When set to “Mho,” the element applies the right and left blinders as well. If the blinders are not required, set their settings high enough to effectively disable the blinders. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-235...
  • Page 444 GROUPED ELEMENTS CHAPTER 5: SETTINGS Figure 5-128: Power swing detect mho operating characteristics Figure 5-129: Effects of blinders on the mho characteristics 5-236 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 445 — This setting selects the shapes (either “Mho” or “Quad”) of the outer, middle, and inner POWER SWING SHAPE characteristics of the power swing detect element. The operating principle is not affected. The “Mho” characteristics use the left and right blinders. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-237...
  • Page 446 POWER SWING MIDDLE LIMIT ANGLE for the three-step mode. A typical value is close to the average of the outer and inner limit angles. This setting applies to mho shapes only. 5-238 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 447 POWER SWING TRIP — Enables and disables the logging of power swing detect events in the sequence of events POWER SWING EVENTS recorder. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-239...
  • Page 448 GROUPED ELEMENTS CHAPTER 5: SETTINGS Figure 5-131: Power swing detect logic (Sheet 1 of 3) 5-240 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 449 CHAPTER 5: SETTINGS GROUPED ELEMENTS Figure 5-132: Power swing detect logic (Sheet 2 of 3) Figure 5-133: Power swing detect logic (Sheet 3 of 3) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-241...
  • Page 450: Load Encroachment

    The element operates if the positive-sequence voltage is above a settable level and asserts its output signal that can be used to block selected protection elements, such as distance or phase overcurrent. The following figure shows an effect of the load encroachment characteristics used to block the quadrilateral distance element. 5-242 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 451: Phase Current

    When the voltage is below this threshold, a blocking signal is not asserted by the element. When selecting this setting, remember that the L60 measures the phase-to-ground sequence voltages regardless of the VT connection. The nominal VT secondary voltage as specified with the SYSTEM SETUP ...
  • Page 452  DIRECTIONAL 2 5.6.8.2 Inverse TOC curve characteristics The inverse time overcurrent curves used by the time overcurrent elements are the IEEE, IEC, GE Type IAC, and I t standard curve shapes. This allows for simplified coordination with downstream devices.
  • Page 453 For European applications, the relay offers three standard curves defined in IEC 255-4 and British standard BS142. These are defined as IEC Curve A, IEC Curve B, and IEC Curve C. The IEC curves are derived by the operate and reset time equations. Eq. 5-12 where L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-245...
  • Page 454 0.711 0.445 0.351 0.301 0.269 0.247 0.231 0.218 0.207 0.60 1.835 1.067 0.668 0.526 0.451 0.404 0.371 0.346 0.327 0.311 0.80 2.446 1.423 0.890 0.702 0.602 0.538 0.494 0.461 0.435 0.415 5-246 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 455 A to E = constants defined in the table = characteristic constant defined in the table = reset time in seconds (assuming energy capacity is 100% and RESET is “Timed”) RESET Table 5-32: GE type IAC inverse time curve constants IAC curve shape IAC Extreme Inverse 0.0040 0.6379...
  • Page 456 250.00 111.11 62.50 40.00 27.78 20.41 15.63 12.35 10.00 100.00 4444.4 2500.0 1111.1 625.00 400.00 277.78 204.08 156.25 123.46 100.00 600.00 26666.7 15000.0 6666.7 3750.0 2400.0 1666.7 1224.5 937.50 740.74 600.00 5-248 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 457 = Reset Time in seconds (assuming energy capacity is 100% and RESET: Timed) RESET Recloser curves The L60 uses the FlexCurve feature to facilitate programming of 41 recloser curves. See the FlexCurves settings section earlier in this chapter for details. 5.6.8.3 Phase time overcurrent (ANSI 51P, IEC PTOC) SETTINGS ...
  • Page 458 — Selects the signal source for the phase time overcurrent protection element. SIGNAL SOURCE — Selects how phase current input quantities are interpreted by the L60. Inputs can be selected as fundamental INPUT phasor magnitudes or total waveform RMS magnitudes as required by the application.
  • Page 459 PHASE IOC1 PICKUP Range: 0.00 to 600.00 s in steps of 0.01  DELAY: 0.00 s PHASE IOC1 RESET Range: 0.00 to 600.00 s in steps of 0.01  DELAY: 0.00 s L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-251...
  • Page 460   DIRECTIONAL 1 FUNCTION: Disabled PHASE DIR 1 SIGNAL Range: SRC 1, SRC 2, SRC 3, SRC 4  SOURCE: SRC 1 PHASE DIR 1 BLOCK: Range: FlexLogic operand  5-252 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 461 (ECA) settings. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-253...
  • Page 462 When set to "Yes," the directional element blocks the operation of any phase overcurrent element under directional control, when voltage memory expires. When set to "No," the directional element allows tripping of phase overcurrent elements under directional control. 5-254 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 463: Neutral Current

    SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  NEUTRAL CURRENT  NEUTRAL CURRENT  NEUTRAL TOC 1 See below      NEUTRAL TOC 4    NEUTRAL IOC 1 See page 5-257    L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-255...
  • Page 464 — This setting selects the signal source for the neutral time overcurrent protection element. NEUTRAL TOC1 SIGNAL SOURCE — This setting selects how neutral current input quantities are interpreted by the L60. Inputs can be NEUTRAL TOC1 INPUT selected as fundamental phasor magnitudes or total waveform RMS magnitudes as required by the application.
  • Page 465 The positive-sequence restraint allows for more sensitive settings by counterbalancing spurious zero-sequence currents resulting from: • System unbalances under heavy load conditions • Transformation errors of current transformers (CTs) during double-line and three-phase faults • Switch-off transients during double-line and three-phase faults L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-257...
  • Page 466 VOLT: Calculated V0 NEUTRAL DIR OC1 OP Range: Calculated 3I0, Measured IG  CURR: Calculated 3I0 NEUTRAL DIR OC1 POS- Range: 0.000 to 0.500 in steps of 0.001  SEQ RESTRAINT: 0.063 5-258 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 467 The following tables define the neutral directional overcurrent element. V_0 is the zero-sequence voltage, I_0 is the zero-sequence current, ECA is the element characteristic angle, and IG is the ground current. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-259...
  • Page 468 This allows for better protection coordination. Take the bias into account when using the neutral directional overcurrent element to directionalize other protection elements. 5-260 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 469 For example, if using an autotransformer neutral current as a polarizing source, ensure that a reversal of the ground current does not occur for a high-side fault. Assume that the L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-261...
  • Page 470 — This setting defines the pickup level for the overcurrent unit of the element in the reverse NEUTRAL DIR OC1 REV PICKUP direction. When selecting this setting, keep in mind that the design uses a positive-sequence restraint technique for the “Calculated 3I0” mode of operation. 5-262 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 471: Wattmetric Ground Fault

    WATTMETRIC GND FLT 1 Range: Calculated IN, Measured IG  CURR: Calculated IN WATTMETRIC GND FLT 1 Range: 0.002 to 30.000 pu in steps of 0.001  OC PKP: 0.060 pu L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-263...
  • Page 472 WATTMETRIC GND FLT 1 PWR PKP the 1 pu voltage as specified for the overvoltage condition of this element, and 1 pu current as specified for the overcurrent condition of this element. 5-264 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 473 The four FlexCurves allow for custom user-programmable time characteristics. When working with FlexCurves, the element uses the operate to pickup ratio, and the multiplier setting is not applied: Eq. 5-24 Again, the FlexCurve timer starts after the definite time timer expires. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-265...
  • Page 474 — This setting is applicable if the is set to Inverse and WATTMETRIC GND FLT 1 MULTIPLIER WATTMETRIC GND FLT 1 CURVE defines the multiplier factor for the inverse time delay. 5-266 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 475: Ground Current

    Figure 5-147: Wattmetric zero-sequence directional logic 5.6.11 Ground current 5.6.11.1 Menu SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  GROUND CURRENT  GROUND CURRENT  GROUND TOC1 See below    L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-267...
  • Page 476 — This setting selects the signal source for the ground time overcurrent protection element. GROUND TOC1 SIGNAL SOURCE — This setting selects how ground current input quantities are interpreted by the L60. Inputs can be GROUND TOC1 INPUT selected as fundamental phasor magnitudes or total waveform RMS magnitudes as required by the application.
  • Page 477 Range: 0.00 to 600.00 s in steps of 0.01  DELAY: 0.00 s GROUND IOC1 BLOCK: Range: FlexLogic operand  GROUND IOC1 Range: Self-reset, Latched, Disabled  TARGET: Self-reset GROUND IOC1 Range: Disabled, Enabled  EVENTS: Disabled L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-269...
  • Page 478: Negative Sequence Current

     NEG SEQ DIR OC2   The L60 provides two negative-sequence time overcurrent elements, two negative-sequence instantaneous overcurrent elements, and two negative-sequence directional overcurrent elements. For information on the negative sequence time overcurrent curves, see the Inverse TOC Curve Characteristics section earlier.
  • Page 479 NEG SEQ IOC1 Range: 0.020 to 30.000 pu in steps of 0.001  PICKUP: 1.000 pu NEG SEQ IOC1 PICKUP Range: 0.00 to 600.00 s in steps of 0.01  DELAY: 0.00 s L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-271...
  • Page 480 SOURCE: SRC 1 NEG SEQ DIR OC1 Range: 0.00 to 250.00 ohms in steps of 0.01  OFFSET: 0.00 Ω NEG SEQ DIR OC1 Range: Neg Sequence, Zero Sequence  TYPE: Neg Sequence 5-272 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 481 CT errors, since the current is low. The operating quantity depends on the way the test currents are injected into the L60. For single phase injection •...
  • Page 482 The reverse-looking function is faster compared to the forward-looking function, so use the reverse-looking function for the blocking direction. This allows for better protection coordination. Take this bias 5-274 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 483 When NEG SEQ DIR OC1 TYPE selecting this setting, keep in mind that the design uses a positive-sequence restraint technique. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-275...
  • Page 484: Breaker Failure (ansi 50bf)

    Range: 0.020 to 30.000 pu in steps of 0.001  PICKUP: 1.050 pu BF1 N AMP SUPV Range: 0.020 to 30.000 pu in steps of 0.001  PICKUP: 1.050 pu BF1 USE TIMER 1: Range: Yes, No  5-276 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 485 Valid only for 1-Pole breaker failure schemes φ BF1 BKR POS2 Range: FlexLogic operand  Valid only for 1-Pole breaker failure schemes φ BF1 BKR POS2 Range: FlexLogic operand  Valid only for 1-Pole breaker failure schemes L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-277...
  • Page 486 For the L60 relay, the protection trip signal initially sent to the breaker is already programmed as a trip output. The protection trip signal does not include other breaker commands that are not indicative of a fault in the protected zone.
  • Page 487 The current supervision elements reset in less than 0.7 of a power cycle for any multiple of pickup current as shown in the following figure. Figure 5-155: Breaker failure overcurrent supervision reset time L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-279...
  • Page 488 In microprocessor relays this time is not significant. In L60 relays, which use a Fourier transform, the calculated current magnitude ramps-down to zero one power frequency cycle after the current is interrupted, and this lag needs to be included in the overall margin duration, as it occurs after current interruption.
  • Page 489 Upon operation of the breaker failure element for a single pole trip command, a three-pole trip command needs to be given via output operand BKR FAIL 1 TRIP L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-281...
  • Page 490 GROUPED ELEMENTS CHAPTER 5: SETTINGS Figure 5-156: Single-pole breaker failure, initiate logic 5-282 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 491 CHAPTER 5: SETTINGS GROUPED ELEMENTS Figure 5-157: Single-pole breaker failure, timers logic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-283...
  • Page 492 GROUPED ELEMENTS CHAPTER 5: SETTINGS Figure 5-158: Three-pole breaker failure, initiate logic 5-284 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 493 CHAPTER 5: SETTINGS GROUPED ELEMENTS Figure 5-159: Three-pole breaker failure, timers logic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-285...
  • Page 494: Voltage Elements

    The time delay is adjustable from 0 to 600.00 seconds in steps of 0.01. The undervoltage elements can also be programmed to have an inverse time delay characteristic. 5-286 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 495 Range: 0.00 to 600.00 s in steps of 0.01  DELAY: 1.00 s PHASE UV1 MINIMUM Range: 0.000 to 3.000 pu in steps of 0.001  VOLTAGE: 0.100 pu PHASE UV1 BLOCK: Range: FlexLogic operand  L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-287...
  • Page 496 Range: 0.00 to 600.00 s in steps of 0.01  DELAY: 1.00 s PHASE OV1 BLOCK: Range: FlexLogic Operand  PHASE OV1 Range: Self-reset, Latched, Disabled  TARGET: Self-reset PHASE OV1 Range: Disabled, Enabled  EVENTS: Disabled 5-288 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 497 Range: 0.00 to 600.00 s in steps of 0.01  DELAY: 1.00 s NEUTRAL OV1 BLOCK: Range: FlexLogic operand  NEUTRAL OV1 TARGET: Range: Self-reset, Latched, Disabled  Self-reset NEUTRAL OV1 EVENTS: Range: Disabled, Enabled  Disabled L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-289...
  • Page 498 There are three negative-sequence overvoltage elements available. Use the negative-sequence overvoltage element to detect loss of one or two phases of the source, a reversed phase sequence of voltage, or a non-symmetrical system voltage condition. 5-290 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 499 Range: Disabled, Enabled  Disabled The L60 contains one auxiliary undervoltage element for each VT bank. This element monitors undervoltage conditions of the auxiliary voltage. selects the voltage level at which the time undervoltage element starts timing. The nominal secondary...
  • Page 500 Range: Disabled, Enabled  Disabled The L60 contains one auxiliary overvoltage element for each VT bank. This element is intended for monitoring overvoltage conditions of the auxiliary voltage. The nominal secondary voltage of the auxiliary voltage channel entered under SYSTEM is the per-unit (pu) base used when setting the SETUP ...
  • Page 501 Range: 0.00 to 600.00 seconds in steps of 0.01  DELAY: 1.00 sec COMPENSATED OV BLK: Range: FlexLogic operand  COMPENSATED OV Range: Self-reset, Latched, Disabled  TARGET: Self-reset COMPENSATED OV Range: Disabled, Enabled  EVENTS: Disabled L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-293...
  • Page 502 — This setting specifies the angle of the impedance Z in degrees. COMPENSATED OV Zc ANG — This setting specifies the maximum expected positive-sequence line current for which a COMPENSATED OV I_1max remote overvoltage is anticipated. 5-294 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 503: Control Elements

    TRIP BUS 1 PICKUP Range: 0.00 to 600.00 s in steps of 0.01  DELAY: 0.00 s TRIP BUS 1 RESET Range: 0.00 to 600.00 s in steps of 0.01  DELAY: 0.00 s L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-295...
  • Page 504 — This setting enables or disables latching of the trip bus output. This is typically used when lockout is TRIP BUS 1 LATCHING required or user acknowledgement of the relay response is required. 5-296 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 505: Setting Groups

    — When Enabled, allows setting groups other than group 1 (the default active group) to be SETTING GROUPS FUNCTION activated. The default setting group is forced active while the setting is Disabled. SETTING GROUPS FUNCTION L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-297...
  • Page 506: Selector Switch

     Disabled SELECTOR 1 FULL Range: 1 to 7 in steps of 1  RANGE: 7 SELECTOR 1 TIME-OUT: Range: 3.0 to 60.0 s in steps of 0.1  5.0 s 5-298 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 507 Z the pre-selected position. The message is displayed for the time specified by the FLASH setting. The pre-selected position is applied after the selector times out (“Time-out” mode), or when the MESSAGE TIME L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-299...
  • Page 508 When set to “Restore,” the last position of the selector (stored in the non-volatile memory) is restored after powering up the relay. If the position restored from memory is out of range, position 0 (no output operand selected) is applied and an alarm is set ( SELECTOR 1 PWR ALARM 5-300 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 509 The selector position pre-selected via the three-bit control input has not been confirmed before the time The following figures illustrate the operation of the selector switch. In these diagrams, “T” represents a time-out setting. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-301...
  • Page 510 CONTROL ELEMENTS CHAPTER 5: SETTINGS Figure 5-173: Time-out mode 5-302 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 511 1 through 3. The pre-selected setting group is to be applied automatically after five seconds of inactivity of the control inputs. When the relay powers up, it is to synchronize the setting group to the three-bit control input. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-303...
  • Page 512 SETTINGS  PRODUCT menu: SETUP  USER-PROGRAMMABLE PUSHBUTTONS  USER PUSHBUTTON 1 : “Self-reset” PUSHBUTTON 1 FUNCTION : “0.10 s” PUSHBUTTON 1 DROP-OUT TIME The figure shows the logic for the selector switch. 5-304 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 513: Trip Output

     TRIP RECLOSE INPUT1: Range: FlexLogic operand   TRIP RECLOSE INPUT6: Range: FlexLogic operand  TRIP SEAL-IN DELAY: Range: 0 to 65.535 s in steps of 0.001  0.000 s L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-305...
  • Page 514 Collect inputs to initiate three pole tripping, the recloser and breaker failure elements • Collect inputs to initiate single pole tripping, the recloser and breaker failure elements • Assign a higher priority to pilot aided scheme outputs than to exclusively local inputs 5-306 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 515 CHAPTER 5: SETTINGS CONTROL ELEMENTS The trip output element works in association with other L60 elements that must be programmed and in-service for successful operation. The necessary elements are: recloser, breaker control, open pole detector, and phase selector. The recloser must also be in the “Reset” state before a single pole trip can be issued. Outputs from this element are also directly connected as initiate signals to the breaker failure elements.
  • Page 516 — These settings are used to select an operand to indicates that phase A, B, or BKR ΦA OPEN BKR ΦB OPEN BKR ΦC OPEN C of the breaker is open, respectively. 5-308 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 517 CHAPTER 5: SETTINGS CONTROL ELEMENTS Figure 5-176: Trip output logic (Sheet 1 of 2) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-309...
  • Page 518 CONTROL ELEMENTS CHAPTER 5: SETTINGS Figure 5-177: Trip output logic (Sheet 2 of 2) 5-310 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 519: Synchrocheck (ansi 25)

    The synchronism check function supervises the paralleling of two parts of a system that are to be joined by the closure of a circuit breaker. The synchrocheck elements are typically used at locations where the two parts of the system are interconnected through at least one other point in the system. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-311...
  • Page 520 Figure 5-178: Synchrocheck plot for slip > 0 (slip = F2-F1) 5-312 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 521 The selected sources for synchrocheck inputs V1 and V2 (which must not be the same source) can include both a three-phase and an auxiliary voltage. The relay automatically selects the specific voltages to be used by the synchrocheck element in accordance with the following table. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-313...
  • Page 522 The relay uses the phase channel of a three-phase set of voltages if programmed as part of that source. The relay uses the auxiliary voltage channel only if that channel is programmed as part of the Source and a three-phase set is not. 5-314 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 523 CHAPTER 5: SETTINGS CONTROL ELEMENTS Figure 5-180: Synchrocheck logic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-315...
  • Page 524: Digital Elements

    DIGITAL ELEMENT 1 RESET DELAY — This setting enables or disabled the digital element pickup LED. When set to “Disabled,” the DIGITAL ELEMENT 1 PICKUP LED operation of the pickup LED is blocked. 5-316 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 525 In most breaker control circuits, the trip coil is connected in series with a breaker auxiliary contact that is open when the breaker is open (see figure). To prevent unwanted alarms in this situation, the trip circuit monitoring logic must include the breaker position. Figure 5-182: Trip circuit example 1 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-317...
  • Page 526 In this case, it is not required to supervise the monitoring circuit with the breaker position – the setting is BLOCK selected to “Off.” In this case, the settings are as follows (EnerVista example shown). 5-318 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 527: Digital Counters

    Range: FlexLogic operand  CNT1 SET TO PRESET: Range: FlexLogic operand  COUNTER 1 RESET: Range: FlexLogic operand  COUNT1 FREEZE/RESET: Range: FlexLogic operand  COUNT1 FREEZE/COUNT: Range: FlexLogic operand  L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-319...
  • Page 528 If control power is interrupted, the accumulated and frozen values are saved into non-volatile memory during the power-down operation. 5-320 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 529: Monitoring Elements

     BREAKER RESTRIKE 2    CT FAILURE See page 5-332   DETECTOR 1   CT FAILURE   DETECTOR 4  VT FUSE FAILURE 1 See page 5-334   L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-321...
  • Page 530 Correction is implemented to account for a non-zero reset time of the overcurrent function. 5-322 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 531 -cycle) and AMP MAX (kA) values of the last event. — This setting specifies the maximum symmetrical interruption rating of the circuit breaker. BKR 1 INTERUPTION RATING Figure 5-185: Arcing current measurement L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-323...
  • Page 532 CONTROL ELEMENTS CHAPTER 5: SETTINGS Figure 5-186: Breaker arcing current logic 5-324 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 533 (contact input indicating the breaker status is off), and no flashover current is flowing. A contact showing the breaker status must be provided to the relay. The voltage difference is not considered as a condition for open breaker in this part of the logic. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-325...
  • Page 534 This application does not require detection of breaker status via a 52a contact, as it uses a voltage difference larger than setting. However, monitoring the breaker contact ensures scheme stability. BRK 1 FLSHOVR DIFF V PKP 5-326 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 535 (all line breakers open), to well above the maximum line (feeder) load (line/feeder connected to load). L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-327...
  • Page 536 A six-cycle time delay applies after the selected FlexLogic operand resets. — This setting specifies the time delay to operate after a pickup condition is detected. BRK FLSHOVR PKP DELAY 5-328 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 537 CHAPTER 5: SETTINGS CONTROL ELEMENTS Figure 5-187: Breaker flashover logic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-329...
  • Page 538  EVENTS: Disabled One breaker restrike element is provided for each DSP in the L60. According to IEEE standard C37.100 entitled IEEE Standard Definitions for Power Switchgear, restrike is defined as “a resumption of current between the contacts of a switching device during an opening operation after an interval of zero current of ¼...
  • Page 539 — Specifies the reset delay for this element. When set to “0 ms,” then FlexLogic operand is BREAKER RESTRIKE 1 RESET DELAY picked up for only 1/8th of the power cycle. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-331...
  • Page 540 CT FAIL 1 3V0 INPUT Range: 0.04 to 2.00 pu in steps of 0.01  PKP: 0.20 pu CT FAIL 1 PICKUP Range: 0.000 to 65.535 s in steps of 0.001  DELAY: 1.000 s 5-332 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 541 CT FAIL 1 3V0 INPUT — Specifies the pickup value for the 3V_0 source. CT FAIL 1 3V0 INPUT PICKUP — Specifies the pickup delay of the CT failure element. CT FAIL 1 PICKUP DELAY L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-333...
  • Page 542 Once the fuse failure condition is declared, it is sealed-in until the cause that generated it disappears. 5-334 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 543 SETTINGS  CONTROL ELEMENTS  MONITORING ELEMENTS  OPEN POLE  OPEN POLE OPEN POLE FUNCTION: Range: Disabled, Enabled   Disabled OPEN POLE BLOCK: Range: FlexLogic operand  OPEN POLE VOLTAGE Range: Disabled, Enabled  SUPV: Disabled L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-335...
  • Page 544 If the fault evolves into a multi-phase fault before the circuit breaker pole opens for the first fault, the phase selector changes the fault type from a single-line-to-ground fault to a multi-phase fault, thereby initiating a three-pole trip. 5-336 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 545 “Enabled” and the setting to “On” (see the Breaker Control section earlier in this chapter for details). BREAKER 2 OUT OF SV Figure 5-193: Open pole detector logic (Sheet 1 of 2) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-337...
  • Page 546 Range: FlexLogic operand  THERM PROT 1 BLOCK: Range: FlexLogic operand  THERMAL PROTECTION 1 Range: Self-reset, Latched, Disabled  TARGET: Self-reset THERMAL PROTECTION 1 Range: Disabled, Enabled  EVENTS: Disabled 5-338 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 547 The reset time of the thermal overload protection element is also time delayed using following formula: Eq. 5-33 where τ = thermal protection trip time constant = a minimum reset time setting L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-339...
  • Page 548 IEC255-8 cold curve or hot curve equations op(In) is the reset time calculated at index n as per the reset time equation rst(In) 5-340 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 549 BROKEN CONDUCTOR 1 Range: 20.0% to 100.0% in steps of 0.1%  I2/I1 RATIO: 20% BROKEN CONDUCTOR 1 Range: 0.05 to 1.00 pu in steps of 0.01  I1 MIN: 0.10 pu L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-341...
  • Page 550 — This setting specifies the pickup time delay for this function to operate after assertion BROKEN CONDUCTOR 1 PKP DELAY of the broken conductor pickup FlexLogic operand. 5-342 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 551 CHAPTER 5: SETTINGS CONTROL ELEMENTS Figure 5-197: Broken conductor detection logic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-343...
  • Page 552: Pilot Schemes

    2 distance functions is not expected to be long for two-terminal applications, and the security of the distance functions is not endangered by the 5-344 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 553 Typically, the output operand should be programmed to initiate a trip, breaker fail, and autoreclose, and drive a user-programmable LED as per user application. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-345...
  • Page 554: Autoreclose (ansi 79)

    Mode 4 Activation: Range: FlexLogic operand  AR MAX NUMBER OF Range: 1, 2, 3, 4  SHOTS: 2 AR INITIATE MODE: Range: Protection AND CB, Protection Only  Protection AND CB 5-346 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 555 Range: 0 to 655.35 s in steps of 0.01  TIME: 5.00 s AR BLOCK BKR2: Range: FlexLogic operand  AR CLOSE TIME BKR2: Range: 0.1 to 655.35 s in steps of 0.01  0.10 s L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-347...
  • Page 556 For the three-pole reclose programs (modes 3 and 4), an FlexLogic operand is set. This operand can be used in AR FORCE 3-P connection with the tripping logic to cause a three-pole trip for single-phase faults. 5-348 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 557 The pause signal freezes all four dead timers. When the ‘pause’ signal disappears the autoreclose cycle is resumed by continuing the shot timer it was left at when paused. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-349...
  • Page 558 (there is no initiating signal and the breakers are closed), the reset timer times out, returning the scheme to the reset state, with the shot counter set to 0, making it ready for a new reclose cycle. 5-350 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 559 The shot counter is not at 0; that is, the scheme is not in the reset state. This ensures a second trip is three-pole when reclosing onto a permanent single phase fault. • 1.25 cycles after the single-pole reclose is initiated by the signal AR 1P INIT L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-351...
  • Page 560 AR 3P INIT are asserted simultaneously, then autoreclose does not activate the first and second shot timers at the same time. Instead, the priority is given to the operand. AR 3P INIT 5-352 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 561 AR1 CLOSE BRK 1 case of the unsuccessful reclose attempt or 20 ms after Open Pole is reset in case of a successful reclosure attempt. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-353...
  • Page 562 — This setting is used in breaker-and-a-half applications to allow the autoreclose control function to AR BUS FLT INIT perform reclosing with only one breaker previously opened by bus protection. For line faults, both breakers must open for the autoreclose reclosing cycles to take effect. 5-354 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 563 However, a FlexLogic operand, FAIL, is asserted if either simultaneous multiple activations are AR MODE SWITCH initiated, or a single activation is initiated but recloser is already in progress. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-355...
  • Page 564 Figure 5-200: Mode control logic In addition, the current AR mode is available as FlexLogic Operands because AR Mode equals to 1, 2, 3, and 4 respectively so that it can be monitored and logged. 5-356 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 565 CHAPTER 5: SETTINGS CONTROL ELEMENTS Figure 5-201: Single-pole autoreclose logic (Sheet 2 of 3) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-357...
  • Page 566 CONTROL ELEMENTS CHAPTER 5: SETTINGS Figure 5-202: Single-pole autoreclose logic (Sheet 3 of 3) 5-358 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 567 CHAPTER 5: SETTINGS CONTROL ELEMENTS Figure 5-203: Example of reclosing sequence L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-359...
  • Page 568: Inputs/outputs

    The DC input voltage is compared to a user-settable threshold. A new contact input state must be maintained for a user-settable debounce time in order for the L60 to validate the new contact state. In the following figure, the debounce time is set at 2.5 ms;...
  • Page 569 For example, to use contact input H5a as a status input from the breaker 52b contact to seal-in the trip relay and record it in the Event Records menu, make the following settings changes: L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-361...
  • Page 570: Virtual Inputs

    FlexLogic equation, it likely needs to be lengthened in time. A FlexLogic timer with a delayed reset can perform this function. Figure 5-205: Virtual inputs logic 5-362 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 571: Contact Outputs

    : any suitable FlexLogic operand OUTPUT H1 OPERATE “Cont Op 1 OUTPUT H1 SEAL-IN IOn” : “Enabled” CONTACT OUTPUT H1 EVENTS Figure 5-206: Contact input/output module type 6A contact 1 logic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-363...
  • Page 572 Figure 5-207: Contact input/output module type 4L contact 1 logic Application example 1 A latching output contact H1a is to be controlled from two user-programmable pushbuttons (buttons number 1 and 2). The following settings are applied. 5-364 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 573 (assuming an H4L module): OUTPUTS  CONTACT OUTPUT H1a CONTACT OUTPUT H1c : “VO1” OUTPUT H1a OPERATE : “VO4” OUTPUT H1a RESET : “VO2” OUTPUT H1c OPERATE : “VO3” OUTPUT H1c RESET L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-365...
  • Page 574: Virtual Outputs

    VIRTUAL OUTPUT 1 ID : "Disabled" VIRTUAL OUTPUT 1 EVENTS 5.8.5 Resetting 5.8.5.1 Enhanced and standard front panels SETTINGS  INPUTS/OUTPUTS  RESETTING  RESETTING RESET OPERAND: Range: FlexLogic operand   5-366 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 575: Direct Inputs And Outputs

    EVENTS: Disabled These settings specify how the direct input information is processed. — This setting allows the user to assign a descriptive name to the direct input. DIRECT INPUT 1 NAME L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-367...
  • Page 576 Assume that contact input 1 from UR IED 2 is to be used by UR IED 1. The following settings are applied (Direct Input 5 and bit number 12 are used, as an example). UR IED 1: 5-368 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 577 (if any default state is set to “On”), or to trip the bus on any overcurrent condition (all default states set to “Off”). Example 3: Pilot-aided schemes Consider a three-terminal line protection application shown in the following figure. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-369...
  • Page 578 5" (forward a message from 1 to 3) DIRECT OUT 3 OPERAND "DIRECT INPUT 6" (forward a message from 3 to 1) DIRECT OUT 4 OPERAND The figure shows the signal flow among the three IEDs. 5-370 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 579: Teleprotection

    The “Latest/On” and “Latest/Off” values freeze the input in case of lost communications. If the latest state is not known, such as after relay power-up but before the first communication exchange, then the input defaults to logic 1 for “Latest/ On” and logic 0 for “Latest/Off.” L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-371...
  • Page 580 (teleprotection outputs at the sending end or corresponding teleprotection inputs at the receiving end). On three-terminal two-channel systems, redundancy is achieved by programming signal re-transmittal in the case of channel failure between any pair of relays. Figure 5-213: Teleprotection input/output processing 5-372 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 581: Transducer Inputs/outputs

    VALUE: 0.000 The L60 is provided with optional DCmA capability. This feature is specified as an option at the time of ordering. See the Order Codes section in chapter 2 for details. Hardware and software are provided to receive signals from external transducers and to convert these signals into a digital format for use as required.
  • Page 582: Rtd Inputs

    1.5 pu. FlexElement operands are available to FlexLogic for further interlocking or to operate an output contact directly. See the following table for reference temperature values for each RTD type. 5-374 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 583: Dcma Outputs

    Range: –90.000 to 90.000 pu in steps of 0.001  MIN VAL: 0.000 pu DCMA OUTPUT H1 Range: –90.000 to 90.000 pu in steps of 0.001  MAX VAL: 1.000 pu L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-375...
  • Page 584 — This setting allows selection of the output range. Each DCmA channel can be set independently DCMA OUTPUT H1 RANGE to work with different ranges. The three most commonly used output ranges are available. 5-376 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 585 The CT ratio is 5000:5 and the maximum load current is 4200 A. The current is to be monitored from 0 A upwards, allowing for 50% overload. The phase current with the 50% overload margin is: Eq. 5-42 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-377...
  • Page 586 ±0.5% of the full scale for the analog output module, or ± 0.005 x (1-0) x 254.03 kV = ±1.27 kV • ±0.5% of reading For example, under nominal conditions, the positive-sequence reads 230.94 kV and the worst-case error is 0.005 × 230.94 kV + 1.27 kV = 2.42 kV. 5-378 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 587: Testing

     FUNCTION: Disabled The L60 provides a test facility to verify the functionality of contact inputs and outputs, some communication functions and the phasor measurement unit (where applicable), using simulated conditions. The test mode can be in any of three states: Disabled, Isolated, or Forcible.
  • Page 588: Force Contact Inputs

     FORCE Cont Op xx Range: Normal, Energized, De-energized, Freeze  : Normal The force contact outputs feature provides a method of performing checks on the function of all contact outputs. 5-380 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 589 While the selected operand is Off, the output behaves as it does when in service. On restart, the setting and the force contact input and force contact output settings revert to TEST MODE FORCING their default states. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-381...
  • Page 590 TESTING CHAPTER 5: SETTINGS 5-382 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 591: Actual Values

      RxGOOSE STATUS See page 6-6    RxGOOSE See page 6-6   STATISTICS  AUTORECLOSE See page 6-7    DIGITAL COUNTERS See page 6-7   L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 592  DCMA INPUTS  TRANSDUCER I/O See page 6-22   RTD INPUTS  DISTANCE See page 6-23     ACTUAL VALUES  FAULT REPORT See page 6-24   RECORDS  L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 593: Front Panel

    The front panel can be viewed and used in the EnerVista software, for example to view an error message displayed on the front panel. To view the front panel in EnerVista software: Click Actual Values > Front Panel. Figure 6-1: Front panel use in the software (C60 shown) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 594: Graphical Front Panel

    The present status of the 64 virtual inputs is shown here. The first line of a message display indicates the ID of the virtual input. For example, ‘Virt Ip 1’ refers to the virtual input in terms of the default name. The second line of the display indicates the logic state of the virtual input. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 595: Rxgoose Boolean Inputs

    Range: On, Off  STATUS: Off The L60 is provided with optional IEC 61850 capability. This feature is specified as a software option at the time of ordering. See the Order Codes section of chapter 2 for details. 6.3.4 RxGOOSE DPS inputs ACTUAL VALUES ...
  • Page 596: Virtual Outputs

     Offline The L60 is provided with optional IEC 61850 capability. This feature is specified as a software option at the time of ordering. See the Order Codes section of chapter 2 for details. actual value does not consider RxGOOSE that are not configured or are not used by any RxGOOSE All RxGOOSE Online Input.
  • Page 597: Autoreclose

    CHAPTER 6: ACTUAL VALUES STATUS The L60 is provided with optional IEC 61850 capability. This feature is specified as a software option at the time of ordering. See the Order Codes section of chapter 2 for details. — State number. The most recently received value in GOOSE message field stNum. The publisher increments stNum stNum each time that the state of one or more of the GOOSE message members is sent with a revised value.
  • Page 598: Flex States

    PTP grandmaster, this actual value is zero. The grandmasterIdentity code is specified by PTP to be globally unique, so one can always know which clock is grandmaster in a system with multiple grandmaster-capable clocks. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 599: Direct Inputs

    The UNRETURNED MSG COUNT CRC FAIL values can be cleared using the command. COUNT CLEAR DIRECT I/O COUNTERS values represent the state of each direct input. DIRECT INPUT 1 DIRECT INPUT (32) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 600: Direct Devices Status

    MODBUS TCP (max 4) Range: 0 to 4  DNP TCP(max 2) Range: 0 to 2  IEC-104 TCP(max 2) Range: 0 to 2  SFTP (max 4) Range: 0 to 4  6-10 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 601: Parallel Redundancy Protocol (prp)

    Range: 0 to 4G, blank if PRP disabled  The L60 is provided with optional PRP capability. This feature is specified as a software option at the time of ordering. See the Order Codes section in chapter 2 for details.
  • Page 602: Metering

    METERING CHAPTER 6: ACTUAL VALUES The L60 is provided with optional IEC 61850 capability. This feature is specified as a software option at the time of ordering. See the Order Codes section of chapter 2 for details. This status is relevant to R-GOOSE reception when configured for SSM or ASM reception modes. It is not relevant for GOOSE or for R-GOOSE in unicast reception mode.
  • Page 603 6.4.1.2 UR convention for measuring phase angles All phasors calculated by URs and used for protection, control and metering functions are rotating phasors that maintain the correct phase angle relationships with each other at all times. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 6-13...
  • Page 604 For display and oscillography purposes the phase angles of symmetrical components are referenced to a common reference as described in the previous sub-section. WYE-connected instrument transformers • ABC phase rotation: • ACB phase rotation: The above equations apply to currents as well. 6-14 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 605 * The power system voltages are phase-referenced – for simplicity – to V and V , respectively. This, however, is a relative matter. It is important to remember that the L60 displays are always referenced as specified under SETTINGS  SYSTEM SETUP  POWER SYSTEM  FREQUENCY AND PHASE REFERENCE The example above is illustrated in the following figure.
  • Page 606: Sources

    SRC 1 PHASOR Ic:  0.000 A 0.0° SRC 1 PHASOR In:  0.000 A 0.0° SRC 1 ZERO SEQ I0:  0.000 A 0.0° SRC 1 POS SEQ I1:  0.000 A 0.0° 6-16 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 607 SRC 1 PHASOR Vbc:  0.000 V 0.0° SRC 1 PHASOR Vca:  0.000 V 0.0° SRC 1 ZERO SEQ V0:  0.000 V 0.0° SRC 1 POS SEQ V1:  0.000 V 0.0° L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 6-17...
  • Page 608 φb: 0.000 VA SRC 1 APPARENT PWR  φc: 0.000 VA SRC 1 POWER FACTOR  3φ: 1.000 SRC 1 POWER FACTOR  φa: 1.000 SRC 1 POWER FACTOR  φb: 1.000 6-18 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 609 S = V x Î x Î x Î Eq. 6-1 When VTs are configured in delta, the L60 does not calculate power in each phase and three-phase power is measured as S = V x Î x Î Eq. 6-2...
  • Page 610: Synchrocheck

    SYNCHROCHECK 1  SYNSCP D_PH: 0.0° SYNCHROCHECK 1  V1 MAG: 0.000 kv SYNCHROCHECK 1  V1 ANG: 0.0° SYNCHROCHECK 1  V2 MAG: 0.000 kV SYNCHROCHECK 1  V2 ANG: 0.0° 6-20 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 611: Tracking Frequency

    = maximum nominal primary RMS value of the +IN and –IN inputs BASE SYNCHROCHECK = maximum primary RMS value of all the sources related to the +IN and –IN inputs BASE (Max Delta Volts) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 6-21...
  • Page 612: Rxgoose Analogs

     0.000 The L60 is provided with optional GOOSE communications capability. This feature is specified as a software option at the time of ordering. See the Order Codes section of chapter 2 for details. The RxGOOSE Analog values display in this menu. The RxGOOSE Analog values are received via IEC 61850 GOOSE messages sent from other devices.
  • Page 613: Distance

    ZBG: 0.00 Ohms BG LOOP IMPEDANCE  ANGLE: 0.00 DEG CG LOOP RESISTANCE  RCG: 0.00 Ohms CG LOOP REACTANCE  XCG: 0.00 Ohms CG LOOP IMPEDANCE  ZCG: 0.00 Ohms L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 6-23...
  • Page 614: Records

    Range: not available if the source VTs are in the  00.0 km “Delta” configuration FAULT 1 RECLOSE Range: where applicable  SHOT: 0 FAULT 1 LOOP Range: 0 to 327.67 Ohms  RESIST: 0.00 Ohms 6-24 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 615: Event Records

     Date and time stamps EVENT: 3 EVENT 3    POWER ON DATE: 2000/07/14 EVENT: 2 EVENT 3   POWER OFF TIME: 14:53:00.03405 EVENT: 1  EVENTS CLEARED L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 6-25...
  • Page 616 (highlight in yellow), then press the green or cyan Mark Event Tab pushbutton. The mark color hides the selector until the selector is moved. A field at the top of the page shows the interval between the two marks. 6-26 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 617: Oscillography

    It counts up at the defined sampling NEWEST SAMPLE TIME rate. If the data logger channels are defined, then both values are static. See the menu for clearing data logger records. COMMANDS  CLEAR RECORDS L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 6-27...
  • Page 618: Product Information

    Range: standard GE order code format  L60-A00-AAA-A0A-A0A-  ORDER CODE LINE 2: Range: up to 20 alphanumeric characters  A0A-A0A-A0A ORDER CODE LINE 3: Range: up to 20 alphanumeric characters  6-28 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 619: Firmware Revisions

    6.6.2.2 Graphical front panel ACTUAL VALUES  PRODUCT INFO  FIRMWARE REVISIONS  FIRMWARE REVISIONS L60 Relay Range: 0.00 to 655.35   REVISION: 7.6x Revision number of the application firmware. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 6-29...
  • Page 620 The shown data is illustrative only. A modification file number of 0 indicates that, currently, no modifications have been installed. The date format reflects the format specified for the clock and can vary from that shown here. 6-30 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 621: Commands And Targets

    The commands menu contains relay directives intended for operations personnel. All commands can be protected from unauthorized access via the command password; see the Security section of chapter 5 for details. The following flash message appears after successfully command entry. COMMAND EXECUTED L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 622: Virtual Inputs

    This menu contains commands for clearing historical data such as the event records. Data is cleared by changing a command setting to “Yes” and pressing the key. After clearing data, the command setting automatically reverts to ENTER “No.” L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 623: Set Date And Time

    Range: No, Yes  TEST? No UPDATE ORDER CODE? Range: No, Yes  REBOOT RELAY? Range: No, Yes  SERVICE COMMAND Range: 0, 101  SAVE VOLATILE DATA? Range: No, Yes  L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 624: Security

    Although the diagnostic information is cleared before the L60 is shipped from the factory, the user can want to clear the diagnostic information for themselves under certain circumstances. For example, you clear diagnostic information after replacement of hardware. Once the diagnostic information is cleared, all self-checking variables are reset to their initial state and diagnostics restart from scratch.
  • Page 625: Targets Menu

    A target enables the EnerVista UR Setup software to monitor automatically and display the status of any active target messages of all the devices inserted into that site. Each L60 element with a TARGET setting has a target message that when activated by its element is displayed in sequence with any other currently active target messages in the menu.
  • Page 626: Relay Self-tests

    Contact Factory (xxx) • Latched target message: Yes. • Description of problem: One or more installed hardware modules is not compatible with the L60 order code. • How often the test is performed: Module dependent. • What to do: Contact the factory and supply the failure code noted in the display. The “xxx” text identifies the failed module (for example, F8L).
  • Page 627 MAINTENANCE ALERT: Direct I/O Ring Break • Latched target message: No. • Description of problem: Direct input and output settings are configured for a ring, but the connection is not in a ring. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 628 Latched target message: No. • Description of problem: A data item in a configurable GOOSE data set is oscillating. • How often the test is performed: Upon scanning of each configurable GOOSE data set. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 629 This time can be from milliseconds to minutes. • What to do: Check GOOSE setup. TEMP MONITOR: OVER TEMPERATURE • Latched target message: Yes. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 630 V-type CPU = All ports support RJ45 SFPs only The consequence of an incorrect SFP can range from damage to the L60 to no power information for the L60 on its web page (enter IP address in a web browser, then click the SFP Transceiver Information — only the type of SFP displays and not power data).
  • Page 631 Self Test Error • Description of problem: Seen until the builds is tagged as being 'release candidate' or 'gold' builds. • What to do: Update firmware to either of these builds. • L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 7-11...
  • Page 632 TARGETS MENU CHAPTER 7: COMMANDS AND TARGETS 7-12 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 633: Application Of Settings

    8.1 87PC phase comparison element 8.1.1 Overview The L60 provides high-speed protection of transmission lines against all phase and ground faults when operated in the “mixed-excitation” mode. The term “mixed-excitation”, when applied to phase comparison, describes a scheme that first mixes different sequence quantities in a given proportion and phase angle, then performs a phase-comparison based on this mix.
  • Page 634 The L60 allows you to check and set channel symmetry without using an oscilloscope, by means of FlexLogic operands and applying the corresponding current to the relays, which in turn key the PLC and consequently measure MARK and SPACE signals on the oscillography.
  • Page 635: Settings Example

    Different methods can be used. The L60 allows the customer to check and set phase delay without using an oscilloscope and by means of FlexLogic operands and applying the corresponding current to both relays. Oscillography shows the time difference (including PLC delay and line propagation time) between local and remote signals.
  • Page 636: Distance/backup Supervision

    FD INPUT 8.2 Distance/backup supervision 8.2.1 Overview As an economical approach to supply customer load, many high voltage (HV) lines have transformers tapped to the lines. The figure shows a typical configuration. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 637: Lines With Tapped Transformers

    LV bus fault can result in a loss of sensitivity. If the tapped transformer is a source of zero sequence infeed, then the L60 zero-sequence current removal has to be enabled as described in the next section.
  • Page 638: Transformer Load Currents

    8.2.3 Transformer load currents The L60 can be applied on the line with a tapped transformer. Since the tapped line can be energized from one terminal only, or there can be a low current flowing through the line, the phase-comparison element must set to provide stability.
  • Page 639: Tractional Load

    8.2.6 Tractional load Where tractional load is tapped from the line protected by the L60, significant and variable negative-sequence current can exist on the line, thereby not allowing sensitive FDL and FDH settings. On such lines, it is beneficial to detect faults based on change in the sequence components of the currents.
  • Page 640 2%. If an internal fault is detected, the challenge is to provide starting transmitting signals at both ends and to have enough operating quantity for arming FDH to operate and to allow tripping. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 641: Single-pole Tripping Applications

    DISTANCE/BACKUP SUPERVISION 8.2.8 Single-pole tripping applications The L60 provides functionality for single-pole tripping from 87PC, distance functions, or instantaneous overcurrent elements via the trip output element. 87PC can detect internal faults on the line but not faulted phases, since the phase currents are combined in one quantity.
  • Page 642: Phase Distance

    The current supervision alone does not prevent maloperation in such circumstances. Keep in mind that the fuse failure element provided on the L60 needs some time to detect fuse fail conditions. This can create a race between the instantaneous zone 1 and the fuse failure element. Therefore, for maximum security, it is recommended to both set the current supervision above the maximum load current and use the fuse failure function.
  • Page 643: Pott Signaling Scheme

    Ground directional overcurrent functions available in the relay can be used in conjunction with the Zone 2 distance element to key the scheme and initiate its operation. This provides increased coverage for high-resistance faults. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 8-11...
  • Page 644: Series Compensated Lines

    This situation is encountered when it is desired to account for the zero sequence inter-circuit mutual coupling. This is not a problem for the ground distance elements in the L60 that do have a current reversal logic built into their design as part of the technique used to improve ground fault directionality.
  • Page 645 As the characteristics of sub-synchronous oscillations are in complex relations with fault and system parameters, no solid setting recommendations are given with respect to extra security margin for sub-synchronous oscillations. It is strongly recommended to use a power system simulator to verify the reach settings or to use an adaptive L60 feature for dynamic reach control.
  • Page 646: Understanding L60 Oscillography

    8.5 Understanding L60 oscillography 8.5.1 Overview The L60 oscillography feature is a powerful tool for tuning, commissioning, and troubleshooting. It also helps to understand the theory of phase-comparison and how the L60 relay incorporates standard analog phase comparison principles. The...
  • Page 647: Two-breaker Configuration

    8.5.2 Two-breaker configuration The L60 has extra security when two CTs are brought into the relay individually and summed internally. Two currents are processed separately to derive the operating signal for each breaker, which is then used for fault detectors and the forming of positive and negative squares.
  • Page 648 UNDERSTANDING L60 OSCILLOGRAPHY CHAPTER 8: APPLICATION OF SETTINGS 8-16 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 649: Theory Of Operation

    Such a signal transmitted at B and received at A can be compared with the current at A to determine whether the two quantities are in phase or out of phase with each other. Conversely, the current at terminal B can be compared with the signal received from terminal A. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 650 ON, then the MARK block corresponds to a received remote signal while the SPACE block corresponds to no signal. Conversely, if the negative portion of the current wave keyed the transmitter to ON, then the SPACE block represents the received signal. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 651 Phase angle differences between the currents entering both ends of the line as a result of phase angle differences in the driving system voltages • Load and charging currents of the line • Transit time of the communication signal • Unsymmetrical build-up and tail-off times of the receiver L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 652 Figure 2C illustrates a tripping scheme while Figure 2D a blocking scheme. Here again, the integrator is, in practice, actually set for 3 to 4 ms. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 653 However, at this point, note that phase comparison on a continuous basis is not permitted mainly because it tends to reduce the security of the scheme. For this reason, fault L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 654 Single-Phase Comparison Blocking Scheme Principle figure that follows. This is a somewhat more fully developed version of 2D, and the same logic is present at both ends of a two-terminal line. Figure 9-4: Three-terminal line phase comparison L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 655: Variations In Phase Comparison Schemes

    These differences relate to the following: • Phase comparison excitation (component or current to be compared) • Pure phase comparison versus combined phase and directional comparison • Blocking versus tripping schemes • Single versus dual phase comparison L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 656: Phase Comparison Excitation

    The following figure shows the relative phase positions of the outputs of a positive sequence network, a negative sequence network, and a zero sequence network all referenced to phase A. The transfer functions of these three networks are given by the following equations. Eq. 9-1 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 657 “net” (load plus fault) positive sequence current entering one end of the line relative to that entering the other end depends on these same factors plus the relative magnitude of the fault and load components of current. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 658 The second and third rows of the table indicate the relative phase positions of the positive plus negative, and positive plus negative plus zero sequence components respectively. These appear to be more unsatisfactory. Rows 4 and 5 combine the components differently and both appear to yield much better results. 9-10 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 659 • Use the fewest number of sequence components • The effects of load current must be minimized. Thus, weight negative and/or zero sequence components over the positive sequence components L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-11...
  • Page 660: Blocking Versus Tripping Schemes

    Figure 2D is representative of a blocking pilot scheme where tripping takes place if there is no receiver output during the half cycle that the local current is positive. 9-12 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 661 There is the build up time in the receiver from the instant the signal appears at its input until the output reflects the change of state. This time plus the build up time in the transmitter is called the channel operating time. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-13...
  • Page 662 Faults external to the protected line have no affect on the signal attenuation since transmission lines that incorporate power line carrier channels are trapped at each end (see the figure). 9-14 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 663 SQ AMPs are attempting to trip via AND1. Thus, the receivers supply the bottom input to AND1, and tripping takes place when FDH operates to provide the third input. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-15...
  • Page 664 When a fault occurs, FDL picks-up very fast to restore the keying function to SQ AMP. This operation resembles a blocking scheme, although it is often called a permissive tripping scheme. 9-16 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 665 During external faults it is important that the blocking signal be isolated from the fault because loss of the signal can result in a false trip. The line traps provide this isolation. Figure 9-11: Single-phase comparison tripping scheme L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-17...
  • Page 666 This approach tends to make the blocking scheme resemble the tripping scheme since the receiver must now indicate an intact channel in order to trip. 9-18 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 667 Aside from the considerations involved in tripping for a fault with single-end feed, which were discussed previously, L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-19...
  • Page 668: Single Versus Dual Phase Comparison

    Under such conditions, the single phase-comparison has to wait until the next positive half-cycle, while the dual phase-comparison can trip on the upcoming negative half-cycle. 9-20 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 669 FDL is dropped out. Thus, on single-end feed tripping can take place only on the negative half-cycle. Figure 9-13: Dual phase-comparison tripping scheme The center frequency, while not actually used in the relay tripping logic, adds security to the scheme during transient conditions. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-21...
  • Page 670: Refinements To Basic Schemes

    There are a number of standard refinements that are required and normally included in all phase comparison schemes. These are discussed in terms of the basic blocking scheme of Figure 9-4, but apply generally to all schemes, sometimes in a different form. 9-22 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 671 Then, while this is taking place, the time delay pickup or dropout of the symmetry logic is adjusted so that the receiver yields a symmetrical output. Figure 9-15: Blocking scheme with symmetry and phase delay adjustments L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-23...
  • Page 672 (as indicated by no output from the trip integrator timer), then AND3 produces an output to the transient blocking timer (15-99)/(15-99). If this condition persists long enough for the transient blocking timer to produce an output, 9-24 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 673 If both Guard and Trip frequencies are not present when the 15 ms timer expires, then the phase comparison scheme is allowed to operate during the trip window time after FDH picks up. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-25...
  • Page 674: Multi-terminal Lines

    For short transmission lines, the charging current is a small factor and can therefore be treated as an unknown error. In this application, the L60 can be deployed without voltage sensors and the line charging current is included as a constant term in the total variance, increasing the differential restraint current.
  • Page 675 Since the zero- sequence voltage is not available, the L60 cannot compensate for the zero sequence current. The compensation scheme continues to work with the breakers open, provided that the voltages are measured on the line- side of the breakers.
  • Page 676: L60 Signal Processing

    The L60 samples currents and voltage inputs at a rate of 64 samples per cycle. Current samples are pre-filtered using band-pass Finite Response Filters (FIR), with a weighted average of signal samples in a selected data window, to remove the decaying DC component and low-frequency distortions.
  • Page 677 The L60 implementation of a phase comparison relay uses a pair of short-window FIR filters to derive the D-Q components while providing for extra transient filtering.
  • Page 678 –0.005 pu of the CT nominal. To ensure security and dependability for blocking schemes, especially during low current conditions when pulses might be shortened, square pulses are created as follows: Eq. 9-8 9-30 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 679 The ‘pulse’ combination logic ensures security and dependability. In this respect, a distinction must be made between tripping and blocking schemes. The following figure illustrates the dual breaker logic for permissive (section a) and blocking (section b) transmit schemes. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-31...
  • Page 680 It must be kept in mind that the positive and negative pulses do not necessarily complement each other, and therefore, one must not substitute not(positive polarity) = negative polarity. 9-32 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 681 The phase comparison algorithm has a well-understood security margin due to the averaging action of the trip integrators. The integrators deal with this kind of noise, yielding a predictable response that is transparent and easy to grasp by the user. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-33...
  • Page 682 Figure 9-25: Pulse asymmetry and correction (channel delay omitted for simplicity) The following figure illustrates the alignment algorithm. It shows local current, received RX voltage, and the remote pulse aligned with the local pulses accounting for the channel delay setting. 9-34 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 683 The coincidence condition is driving an explicitly implemented integrator (summator). In the L60, the integrator counts up by 10 units if the coincidence input is logic 1, counts down by 5 counts if the coincidence input is momentarily logic 0, and counts down by 20 if the input is in logic 0 for extended periods of time.
  • Page 684: Single-pole Tripping

    Figure 9-27: Trip integration logic (relay COMTRADE record) The L60 can be programmed to perform an automatic check-back. Under normal system conditions, a relay can initiate transmission and modulate the analog signal to exchange small amounts of information. The ability to abort in cases of system faults is a key to successful deployment.
  • Page 685 • Initiates blocking of protection elements that can potentially maloperate when a breaker pole is open • Instructs the phase selector to de-assert all outputs, as an open pole invalidates calculations L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-37...
  • Page 686 CHAPTER 9: THEORY OF OPERATION The operation of the scheme in a single breaker arrangement is described as follows. The line is protected by a L60 using the 87PC, line pickup, and zone 1 phase and ground distance elements. 87PC and/or zone 1 is configured to issue a single- pole trip when appropriate ( “GND DIST Z1...
  • Page 687: Phase Selection

    (depending on the number of shots programmed). 9.2.2 Phase selection The L60 uses phase relations between current symmetrical components for phase selection. First, the algorithm validates if there is enough zero-sequence, positive-sequence, and negative-sequence currents for reliable analysis. The comparison is adaptive;...
  • Page 688 Asserted when a phase A to B to ground fault is detected PHASE SELECT BCG Asserted when a phase B to C to ground fault is detected PHASE SELECT CAG Asserted when a phase C to A to ground fault is detected 9-40 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...