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SEL-351S-5
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Manuals and User Guides for Sel SEL-351S-5. We have
1
Sel SEL-351S-5 manual available for free PDF download: Instruction Manual
Sel SEL-351S-5 Instruction Manual (760 pages)
Relay, Meter, Control, Fault Locator
Brand:
Sel
| Category:
Relays
| Size: 28 MB
Table of Contents
Table of Contents
4
List of Tables
8
List of Figures
12
Preface
18
Typographic Conventions
21
Cross References
21
Safety Information
22
Introduction and Specifications
24
SEL-351S Models
25
Table 1.1 SEL-351S Models
25
Table 1.2 SEL-351S Firmware Versions
26
Auxiliary {TRIP} and {CLOSE} Pushbuttons
26
CT Saturation Protection
26
Potential Transformer Connections
27
Applications
28
Figure 1.1 SEL-351S Relays Applied Throughout the Power System
28
Hardware Connection Features
29
Figure 1.2 Inputs, Outputs, and Communications Ports (Extra I/O Boards in Figure 1.3 and Figure 1.4)
29
Figure 1.3 Extra I/O Board (Model 0351Sxy, Plug-In Connector Version; Main Board Shown in Figure 1.2)
30
Figure 1.4 Extra I/O Board
31
Communications Connections
32
Figure 1.5 Communications Connections Examples
32
Specifications
33
Substation Battery Voltage Monitor
36
Metering Accuracy
36
Power Element Accuracy
37
Section 2: Installation
38
Relay Mounting
38
Rack Mount
38
Panel Mount
38
Figure 2.1 SEL-351S Dimensions for Rack-Mount and Panel-Mount Models
39
Front-Panel and Rear-Panel Connection Diagrams
40
Figure 2.2 SEL-351S Front- and Rear-Panel Drawings (Model 0351Sxyh3Xxxx6X); Horizontal Rack Mount Example, (Connectorized, with Additional I/O Board)
41
Figure 2.3 SEL-351S Front- and Rear-Panel Drawings (Model 0351Sx133Xxxx2X); Horizontal Panel Mount Example, (Conventional Terminal Blocks, with Additional I/O Board)
42
Figure 2.4 SEL-351S Front- and Rear-Panel Drawings (Model 0351Sx143Xxxxxx); Vertical Panel Mount Example, (Conventional Terminal Blocks, no Additional I/O Board)
43
Figure 2.5 SEL-351S with Auxiliary {TRIP}/{CLOSE} Pushbuttons (Model 0351Sx145Xxxx6X); Vertical Panel-Mount Example, (Conventional Terminal Blocks, with Additional I/O Board)
44
Figure 2.6 SEL-351S with Auxiliary {TRIP}/{CLOSE} Pushbuttons (Model 0351Sxyh5Xxxx2X); Horizontal Rack-Mount Example, (Connectorized, with Additional I/O Board)
45
User-Configurable Label Option for the Front Panel
46
Figure 2.7 SEL-351S (Horizontal) with User-Configurable Default Labels
46
Figure 2.8 SEL-351S (Horizontal) Blank Slide-In Label Set and Label Removal Tool
47
Figure 2.9 SEL-351S (Vertical) with User-Configurable Default Labels
48
Table 2.1 Options and Explanations for the User-Configurable Front-Panel Labels
50
Figure 2.11 Breaker LED Front-Panel Default Labels and Rear-Panel Labels
50
Making Rear-Panel Connections
51
Required Equipment/General Connection Information
51
Models 0351Sxy (Plug-In Connectors)
51
Figure 2.12 SEL-351S Plug-In Connector Coding (Top View; Model 0351Sxy)
52
Chassis Ground
53
Power Supply
53
Standard Output Contacts
54
High-Current Interrupting Output Contacts
54
Current Transformer Inputs
55
Model 0351Sxy
55
Potential Transformer Inputs
55
Voltage Input Rating
56
Wye-Connected Voltages (Global Setting PTCONN = WYE)
56
Delta-Connected Voltages (Global Setting PTCONN = DELTA)
56
Synchronism Check VS Connection (Global Setting VSCONN = VS)
57
Broken-Delta VS Connection (Global Setting VSCONN = 3V0)
57
Polarity Check for VSCONN = 3V0
57
Wye-Connected PT Example
58
Figure 2.13 Broken-Delta Secondary Connection to Voltage Input VS, Wye-Connected Pts
58
Figure 2.14 Resultant Voltage V
59
Figure 2.15 Broken-Delta Secondary Connection to Voltage Input VS, Open-Delta Connected Pts
59
Figure 2.16 Resultant Voltage V
60
Serial Ports
60
Table 2.2 Communication Cables to Connect the SEL-351S to Other Devices
61
IRIG-B Time-Code
61
SEL-351S AC/DC Connection Diagrams for Various Applications
62
Figure 2.17 SEL-351S Provides Overcurrent Protection and Reclosing for a Utility Distribution Feeder (Includes Fast Bus Trip Scheme) (Wye-Connected Pts)
62
Figure 2.18 SEL-351S Provides Overcurrent Protection for a Distribution Bus (Includes Fast Bus Trip Scheme) (Wye-Connected Pts)
63
Figure 2.19 SEL-351S Provides Directional Overcurrent Protection and Reclosing for a Transmission Line (Wye-Connected Pts)
64
Figure 2.20 SEL-351S Provides Directional Overcurrent Protection and Reclosing for a Transmission Line (Current-Polarization Source Connected to Channel IN) (Wye-Connected Pts)
65
Figure 2.21 SEL-351S Provides Overcurrent Protection for a Delta-Wye Transformer Bank (Wye-Connected Pts)
66
Figure 2.22 SEL-351S Provides Overcurrent Protection for a Transformer Bank with a Tertiary Winding (Wye-Connected Pts)
67
Figure 2.23 SEL-351S Provides Overcurrent Protection for an Industrial Distribution Feeder (Core-Balance Current Transformer Connected to Channel IN)
68
Figure 2.24 SEL-351S Provides Dedicated Breaker Failure Protection
69
Figure 2.25 SEL-351S Provides Overcurrent Protection for a High-Impedance or Low-Impedance Grounded System (Wye-Connected Pts)
70
Figure 2.26 SEL-351S Provides Overcurrent Protection for a Petersen Coil Grounded System (Wye-Connected Pts)
71
Figure 2.27 SEL-351S Provides Overcurrent Protection for an Ungrounded System (Wye-Connected Pts)
72
Figure 2.28 SEL-351S Provides Overcurrent Protection for an Ungrounded System (Open-Delta Connected Pts, Broken-Delta 3V0 Connection)
73
Figure 2.29 SEL-351S Provides Overcurrent Protection and Reclosing for a Utility Distribution Feeder (Open-Delta Connected Pts and Line-To-Ground Synch-Check Connection)
74
Figure 2.30 SEL-351S Provides Underfrequency Load Shedding, Overcurrent Protection, and Reclosing for a Utility Distribution Feeder (Single Voltage Connection)
75
Figure 2.31 SEL-351S Example Wiring Diagram Using the Auxiliary {TRIP}/{CLOSE} Pushbuttons for 0351Sxxx5/6/A/B Models
76
Circuit Board Connections
77
Figure 2.32 Jumper, Connector, and Major Component Locations on the SEL-351S Main Board
78
Figure 2.33 Jumper, Connector, and Major Component Locations on the SEL-351Sxy Extra I/O Board (Plug-In Connector Version)
79
Figure 2.34 Jumper, Connector, and Major Component Locations on the SEL-351Sx1 Extra I/O Board (Screw Terminal Block Version)
80
Figure 2.35 Jumper Locations for the 0351Sxxx5/6/A/B Model Magnetics/Auxiliary Pushbutton
81
Output Contact Jumpers
81
Table 2.3 Output Contact Jumpers and Corresponding Output Contacts
82
Table 2.4 "Extra Alarm" Output Contacts and Corresponding Controlling Jumpers
82
Table 2.5 Required Position of Jumper JMP23 for Desired Output Contact OUT107 Operation (Models 0351Sx1, and 0351Sxy)
82
Table 2.6 Password and Breaker Jumper Positions for Standard Relay Shipments
83
Table 2.7 Password and Breaker Jumper Operation
83
Table 2.8 EIA-232 Serial Port Voltage Jumper Positions for Standard Relay Shipments
83
Auxiliary {TRIP}/ {CLOSE} Pushbutton and Breaker Status LED Jumpers (0351Sxxx5/6/A/B Models Only)
84
Table 2.9 Jumper Positions for Breaker OPEN/CLOSE Indication
84
Table 2.10 Jumper Positions for Arc Suppression
84
Clock Battery
84
Phase Instantaneous/Definite-Time Overcurrent Elements
86
Section 3: Overcurrent, Voltage, Synchronism Check, Frequency, and Power Elements Instantaneous/Definite-Time Overcurrent Elements
87
Figure 3.1 Levels 1-4 Phase Instantaneous Overcurrent Elements
87
Figure 3.2 Levels 5-6 Phase Instantaneous Overcurrent Elements
87
Pickup Operation
88
Figure 3.3 Levels 1-4 Phase Instantaneous/Definite-Time Overcurrent Elements
89
Figure 3.4 Combined Single-Phase Instantaneous Overcurrent Elements
91
Pickup and Reset Time Curves
91
Figure 3.5 SEL-351S Nondirectional Instantaneous Overcurrent Element Pickup Time Curve
92
Figure 3.6 SEL-351S Nondirectional Instantaneous Overcurrent Element Reset Time Curve
92
Setting Range
92
Neutral Ground Instantaneous/Definite-Time Overcurrent Elements
93
Figure 3.7 Levels 1-4 Phase-To-Phase Instantaneous Overcurrent Elements
94
Figure 3.8 Levels 1-4 Neutral Ground Instantaneous/Definite-Time Overcurrent Elements
95
Figure 3.9 Levels 5-6 Neutral Ground Instantaneous Overcurrent Elements
96
Residual Ground Instantaneous/Definite-Time Overcurrent Elements
96
Figure 3.10 Levels 1-4 Residual Ground Instantaneous/Definite-Time Overcurrent Elements
98
Figure 3.11 Levels 5-6 Residual Ground Instantaneous Overcurrent Elements
99
Negative-Sequence
99
Figure 3.12 Levels 1-4 Negative-Sequence Instantaneous/Definite-Time Overcurrent Elements
100
Figure 3.13 Levels 5-6 Negative-Sequence Instantaneous Overcurrent Elements
101
Time-Overcurrent Elements
102
Table 3.1 Available Phase Time-Overcurrent Elements
102
Table 3.2 Phase Time-Overcurrent Elements Settings
102
Figure 3.14 Phase Time-Overcurrent Element 51P1T (with Directional Control Option)
103
Figure 3.15 Phase Time-Overcurrent Element 51P2T (with Directional Control Option)
103
Table 3.3 Phase Time-Overcurrent Element (Maximum Phase) Logic Outputs
104
Torque Control Switch Open
104
Directional Control Option
105
Torque Control
105
Reset Timing Details (51P1T Element Example)
106
Figure 3.16 Neutral Ground Time-Overcurrent Element 51N1T (with Directional Control Option)
107
Table 3.4 Neutral Ground Time-Overcurrent Elements Settings
108
Figure 3.17 Neutral Ground Time-Overcurrent Element 51N2T (with Directional Control Option)
108
Residual Ground Time-Overcurrent Elements
109
Figure 3.18 Residual Ground Time-Overcurrent Element 51G1T (with Directional Control Option)
109
Table 3.5 Residual Ground Time-Overcurrent Elements Settings
110
Figure 3.19 Residual Ground Time-Overcurrent Element 51G2T (with Directional Control Option)
110
Table 3.6 Negative-Sequence Time-Overcurrent Elements Settings
111
Figure 3.20 Negative-Sequence Time-Overcurrent Element 51QT (with Directional Control Option)
111
Voltage Elements
113
Table 3.7 Voltage Values Used by Voltage Elements
113
Voltage Element Settings
113
Table 3.8 Voltage Elements Settings and Settings Ranges (Wye-Connected Pts)
114
Table 3.9 Voltage Elements Settings and Settings Ranges (VS Channel)
114
Table 3.10 Voltage Elements Settings and Settings Ranges (Delta-Connected Pts)
115
Figure 3.21 Single-Phase and Three-Phase Voltage Elements (Wye-Connected Pts)
116
Figure 3.22 Phase-To-Phase and Sequence Voltage Elements (Wye-Connected Pts)
117
Figure 3.23 Phase-To-Phase Voltage Elements (Delta-Connected Pts)
118
Figure 3.24 Sequence Voltage Elements (Delta-Connected Pts)
118
Figure 3.25 Channel VS Voltage Elements (Wye- or Delta-Connected Pts)
119
Undervoltage Element Operation Example
119
Overvoltage Element Operation Example
119
Voltage Elements Used in POTT Logic
120
Synchronism Check Elements
121
Table 3.11 Synchronism Check Elements Settings and Settings Ranges
121
Setting SYNCP
122
Wye-Connected Voltages
122
Delta-Connected Voltages
122
Figure 3.26 Synchronism Check Voltage Window and Slip Frequency Elements
123
Figure 3.27 Synchronism Check Elements
123
System Frequencies Determined from Voltages
125
System Rotation Can Affect Setting SYNCP
126
Other Uses for Voltage Window Elements
126
Block Synchronism Check Conditions
126
Slip Frequency Calculator
127
Generator Application for SSLOW and SFAST
127
Angle Difference Calculator
128
Angle Difference Example
129
Figure 3.28 Angle Difference between V
130
Synchronism Check Element Outputs
131
Synchronism Check Applications for Automatic Reclosing and Manual Closing
132
Frequency Elements
134
Frequency Element Settings
134
Figure 3.31 Levels 1-6 Frequency Elements
135
Table 3.12 Frequency Elements Settings and Settings Ranges
136
Create Over- and Underfrequency Elements
136
Overfrequency Element
136
Overfrequency Element Operation
137
Underfrequency Element Operation
137
Frequency Element Voltage Control
137
Other Uses for Undervoltage Element 27B81
138
Frequency Element Uses
138
Underfrequency Loadshedding
138
Voltage Sag, Swell, and Interruption Elements (Available in Firmware Version 7)
139
Figure 3.32 Voltage Sag Elements
139
Figure 3.33 Voltage Swell Elements
140
Figure 3.34 Voltage Interruption Elements
140
Voltage Sag, Swell, and Interruption Elements Settings
140
Table 3.13 Sag/Swell/Interruption Elements Settings (Must First Set ESSI = Y)
141
Vbase Thermal Element Block
141
Figure 3.35 Vbase Tracking Example (Three-Phase Disturbance, Wye Connected)
142
Vbase Initialization
142
Vbase Tracking Range
143
SSI Reset Command
143
Power Elements (Available in Firmware Version 7)
144
Power Elements Settings
144
Table 3.14 Single-Phase Power Element Settings and Setting Ranges (EPWR = 1, 2, 3, or 4)
144
Table 3.15 Three-Phase Power Element Settings and Setting Ranges (EPWR = 3P1, 3P2, 3P3, or 3P4)
144
Power Element Time Delay Setting Considerations
145
Using Power Elements in the Relay Trip Equation
145
Single-Phase Power Element Calculations
147
Three-Phase Power Element Calculations
147
Power Elements Logic Operation
147
Figure 3.36 Single-Phase Power Elements Logic (+VARS Example Shown)
147
Figure 3.37 Three-Phase Power Elements Logic
148
Figure 3.38 Power Elements Operation in the Real/Reactive Power Plane
148
Figure 3.39 SEL-351S(B) Provides VAR Control for 9600 Kvar Capacitor Bank
149
Figure 3.40 Per Unit Setting Limits for Switching 9600 Kvar Capacitor Bank On- and Off-Line
151
Settings for Single-Phase Power Elements
151
Settings for Three-Phase Power Elements
152
Section 4: Loss-Of-Potential, Load Encroachment, and Directional Element Logic
154
Loss-Of-Potential Logic
154
Table 4.1 LOP Logic Inputs
154
Figure 4.1 Loss-Of-Potential Logic
154
Setting VNOM = off
155
Setting ELOP
155
Setting ELOP = y
156
Setting ELOP = N
156
Load-Encroachment Logic
157
Figure 4.2 Load-Encroachment Logic
157
Table 4.2 Load-Encroachment Settings Ranges
158
Load-Encroachment Setting Example
158
Convert Maximum Loads to Equivalent Secondary Impedances
158
Convert Power Factors to Equivalent Load Angles
159
Figure 4.3 Migration of Apparent Positive-Sequence Impedance for a Fault Condition
160
Directional Control for Neutral Ground and Residual Ground Overcurrent Elements
162
Figure 4.4 General Logic Flow of Directional Control for Neutral Ground and Residual Ground Overcurrent Elements (Excluding Ungrounded/High-Impedance Grounded Systems)
163
Table 4.3 Available Ground Directional Elements
164
Table 4.4 Best Choice Ground Directional™ Logic
164
Figure 4.5 General Logic Flow of Directional Control for Neutral Ground and Residual Ground Overcurrent Elements (Ungrounded/High-Impedance Grounded Systems; ORDER = U)
164
Table 4.5 Ground Directional Element Availability by Voltage Connection Settings
166
Internal Enables
167
Zero-Sequence Voltage Sources
168
Directional Elements
169
Directional Element Routing
170
Loss-Of-Potential
170
Figure 4.6 Internal Enables (32QE and 32QGE) Logic for Negative-Sequence Voltage-Polarized Directional Elements
172
Figure 4.7 Internal Enables (32VE and 32IE) Logic for Zero-Sequence Voltage-Polarized and Channel in Current-Polarized Directional Elements
173
Figure 4.8 Internal Enable (32NE) Logic for Zero-Sequence Voltage-Polarized Directional Elements (Low-Impedance Grounded, Petersen Coil Grounded, and Ungrounded/High-Impedance Grounded Systems)
174
Figure 4.9 Negative-Sequence Voltage-Polarized Directional Element for Neutral Ground and Residual Ground Overcurrent Elements
175
Figure 4.10 Zero-Sequence Voltage-Polarized Directional Element
176
Figure 4.11 Channel in Current-Polarized Directional Element
177
Figure 4.12 Zero-Sequence Voltage-Polarized Directional Element (Low-Impedance Grounded Systems)
178
Figure 4.13 Wattmetric and Incremental Conductance Directional Elements (Petersen Coil Grounded Systems)
179
Figure 4.14 Zero-Sequence Voltage-Polarized Directional Element (Ungrounded/High-Impedance Grounded Systems)
180
Figure 4.15 Routing of Directional Elements to Residual Ground Overcurrent Elements
181
Figure 4.16 Routing of Direction Elements to Neutral Ground Overcurrent Elements
181
Figure 4.17 Direction Forward/Reverse Logic for Residual Ground Overcurrent Elements
182
Figure 4.18 Direction Forward/Reverse Logic for Neutral Ground Overcurrent Elements
183
Directional Control for Negative-Sequence and Phase Overcurrent Elements
184
Figure 4.19 General Logic Flow of Directional Control for Negative-Sequence and Phase Overcurrent Elements
184
Direction Forward/Reverse Logic
186
Figure 4.20 Negative-Sequence Voltage-Polarized Directional Element for Negative-Sequence and Phase Overcurrent Elements
187
Figure 4.21 Positive-Sequence Voltage-Polarized Directional Element for Phase Overcurrent Elements
188
Figure 4.22 Routing of Directional Elements to Negative-Sequence and Phase Overcurrent Elements
189
Figure 4.23 Direction Forward/Reverse Logic for Negative-Sequence Overcurrent Elements
190
Figure 4.24 Direction Forward/Reverse Logic for Phase Overcurrent Elements
191
Directional Control Settings
192
Table 4.6 Directional Control Settings Not Made for Particular Conditions
193
Table 4.7 Overcurrent Elements Controlled by Level Direction Settings DIR1-DIR4
193
ORDER-Ground Directional Element Priority Setting
194
Petersen Coil Considerations for Setting ORDER
195
Table 4.8 Z Constant for Z2R Setting
196
K2 Set Automatically
198
Z0F and Z0R Set Automatically
201
Table 4.9 Z Constant for Z0R Setting
201
Deriving Z0F and Z0R Settings
201
Figure 4.25 Zero-Sequence Impedance Network and Relay Polarity
202
Figure 4.26 Zero-Sequence Impedance Plot for Solidly-Grounded, Mostly Inductive System
202
Figure 4.27 Zero-Sequence Impedance Network for Ground Fault on Feeder 1
205
Figure 4.28 Wattmetric Element Operation for Ground Fault on Feeder 1
206
32WD-Wattmetric Delay (Petersen Coil Grounded System)
207
Settings Considerations for Petersen Coil Grounded Systems
207
Table 4.10 Affect of Global Settings VSCONN and PTCONN on Petersen Coil Directional
209
E32IV-SEL OGIC Control Equation Enable
209
Ungrounded/High-Impedance Grounded System Considerations for Setting E32IV
210
Directional Control Provided by Torque Control Settings
211
Trip and Target Logic
212
Figure 5.1 Trip Logic
213
Figure 5.2 Minimum Trip Duration Timer Operation (See Bottom of Figure 5.1)
214
Unlatch Trip
214
Section 5: Trip and Target Logic Trip Logic
215
Other Applications for the Target Reset Function
215
Factory Settings Example (Using Setting TR)
215
Unlatch Trip with 52A Circuit Breaker Auxiliary Contact
216
Unlatch Trip with 52B Circuit Breaker Auxiliary Contact
216
Switch-Onto-Fault (SOTF) Trip Logic
219
Figure 5.3 Three-Pole Open Logic (Top) and Switch-Onto-Fault Logic (Bottom)
219
Circuit Breaker Operated Switch-Onto-Fault Logic
220
Switch-Onto-Fault Logic Output (SOTFE)
221
Switch-Onto-Fault Trip Logic Trip Setting (TRSOTF)
221
Communications-Assisted Trip Logic-General Overview
222
Figure 5.4 Communications-Assisted Tripping Scheme
222
Trip Setting TRCOMM
223
Trip Setting DTT
224
Permissive Overreaching Transfer Trip (POTT) Logic
226
External Inputs
226
PT1-Received Permissive Trip Signal(S)
226
Figure 5.5 Permissive Input Logic Routing to POTT Logic
227
Timer Settings
227
Logic Outputs
227
EKEY-Echo Key Permissive Trip
228
Figure 5.6 POTT Logic
229
Figure 5.7 Permissive Input Logic Routing to Trip Logic
230
Variations for Permissive Underreaching Transfer Trip (PUTT) Scheme
230
Installation Variations
230
Figure 5.8 SEL-351S Connections to Communications Equipment for a Two-Terminal Line POTT Scheme
231
Figure 5.9 SEL-351S Connections to Communications Equipment for a Three-Terminal Line POTT Scheme
231
Directional Comparison Unblocking (DCUB) Logic
232
Figure 5.10 DCUB Logic
235
Figure 5.11 Unblocking Block Logic Routing to Trip Logic
236
PTRX1, PTRX2-Permissive Trip Receive Outputs
236
Figure 5.12 SEL-351S Connections to Communications Equipment for a Two-Terminal Line DCUB Scheme (Setting ECOMM = DCUB1)
236
Figure 5.13 SEL-351S Connections to Communications Equipment for a Three-Terminal Line DCUB Scheme (Setting ECOMM = DCUB2)
237
Directional Comparison Blocking (DCB) Logic
238
DSTRT-Directional Carrier Start
239
NSTRT-Nondirectional Carrier Start
239
BTX-Block Trip Extension
240
Figure 5.14 DCB Logic
240
Figure 5.15 SEL-351S Connections to Communications Equipment for a Two-Terminal Line DCB Scheme
241
Figure 5.16 SEL-351S Connections to Communications Equipment for a Three-Terminal Line DCB Scheme
242
Front-Panel Target Leds
243
Table 5.1 SEL-351S Front-Panel Target LED Definitions and Settings
243
Figure 5.17 Programmable Front-Panel Target LED Logic
244
Front-Panel Target LED Logic Details
244
Target Reset/Lamp Test Front-Panel Pushbutton
247
Figure 5.18 Seal-In of Breaker Failure Occurrence for Message Display
247
Close and Reclose Logic
250
Section 6: Close and Reclose Logic Close Logic
251
Figure 6.1 Close Logic
251
Set Close
251
Unlatch Close
252
Factory Settings Example
252
Figure 6.2 Close Conditions-Other than Auto-Reclosing
253
Figure 6.3 Unlatch Close Conditions
254
Circuit Breaker Status
254
Figure 6.4 Breaker Status Determination
255
Program an Output Contact for Closing
255
Reclose Supervision Logic
256
Figure 6.5 Reclose Supervision Logic (Following Open-Interval Time-Out)
256
Figure 6.6 Reclose Supervision Limit Timer Operation (Refer to Bottom of Figure 6.5)
257
Settings and General Operation
257
For most Applications
257
For a Few, Unique Applications
258
Additional Settings
260
Figure 6.7 SEL-351S Relays Installed at both Ends of a Transmission Line in a High-Speed Reclose Scheme
260
Additional Settings Example
261
Reclosing Relay
263
Table 6.1 Relay Word Bit and Front-Panel Correspondence to Reclosing Relay States
264
Figure 6.8 Reclosing Relay States and General Operation
264
Reclosing Relay States and Settings/Setting Group Changes
265
Lockout State
265
Defeat the Reclosing Relay
266
Close Logic Can Still Operate When the Reclosing Relay Is Defeated
266
Table 6.2 Reclosing Relay Timer Settings and Setting Ranges
266
Open-Interval Timers
267
Figure 6.9 Example Reclosing Sequence from Reset to Lockout
267
Determination of Number of Reclosures (Last Shot)
267
Observe Shot Counter Operation
268
Reset Timer
268
Monitoring Open-Interval and Reset Timing
269
Reclosing Relay Shot Counter
269
Table 6.3 Shot Counter Correspondence to Relay Word Bits and Open-Interval Times
269
Reclose Initiate and Reclose Initiate Supervision Settings
270
Other Settings Considerations
271
Drive-To-Lockout and Drive-To-Last Shot Settings (79DTL and 79DLS, Respectively)
272
Figure 6.10 Factory-Default Drive-To-Lockout Logic
273
Table 6.5 Example Open-Interval Time Settings
274
Figure 6.11 Reclose Blocking for Islanded Generator
275
Additional Settings Example
275
Sequence Coordination Setting (79SEQ)
277
Figure 6.13 Operation of SEL-351S Shot Counter for Sequence Coordination with Line Recloser
278
Reclose Supervision Setting (79CLS)
280
Inputs, Outputs, Timers, and Other Control Logic
282
Optoisolated Inputs
283
Figure 7.1 Example Operation of Optoisolated Inputs IN101-IN106
283
Figure 7.2 Example Operation of Optoisolated Inputs IN201-IN208-Extra I/O Board
284
Input Debounce Timers
284
Input Functions
285
Settings Examples
285
Figure 7.3 Circuit Breaker Auxiliary Contact and Reclose Enable Switch Connected to Optoisolated Inputs IN101 and IN102
285
Local Control Switches
287
Figure 7.4 Local Control Switches Drive Local Bits LB1-LB16
287
Table 7.1 Correspondence between Local Control Switch Positions and Label Settings
287
On/Off Switch
287
Table 7.2 Correspondence between Local Control Switch Types and Required Label Settings
288
Figure 7.5 Local Control Switch Configured as an ON/OFF Switch
288
Figure 7.6 Local Control Switch Configured as an OFF/MOMENTARY Switch
288
Figure 7.7 Local Control Switch Configured as an ON/OFF/MOMENTARY Switch
288
Figure 7.8 Configured Manual Trip Switch Drives Local Bit LB3
289
Figure 7.9 Configured Manual Close Switch Drives Local Bit LB4
289
Remote Control Switches
291
Figure 7.10 Remote Control Switches Drive Remote Bits RB1-RB16
291
Latch Control Switches
293
Figure 7.11 Traditional Latching Relay
293
Figure 7.12 Latch Control Switches Drive Latch Bits LT1-LT16
293
Latch Control Switch Application Ideas
294
Reclosing Relay Enable/Disable Setting Example
294
Figure 7.13 SCADA Contact Pulses Input IN104 to Enable/Disable Reclosing Relay
294
Figure 7.14 Latch Control Switch Controlled by a Single Input to Enable/Disable Reclosing
294
Feedback Control
295
Rising Edge Operators
295
Figure 7.15 Latch Control Switch Operation Time Line
296
Use a Remote Bit Instead to Enable/Disable the Reclosing Relay
296
Latch Control Switch States Retained
296
Figure 7.16 Time Line for Reset of Latch Bit LT2 after Active Setting Group Change
297
Note: Make Latch Control Switch Settings with Care
297
Figure 7.17 Latch Control Switch (with Time Delay Feedback) Controlled by a Single Input to Enable/Disable Reclosing
298
Figure 7.18 Latch Control Switch (with Time Delay Feedback) Operation Time Line
299
Multiple Setting Groups
300
Table 7.3 Definitions for Active Setting Group Indication Relay Word Bits SG1-SG6
300
Selecting the Active Setting Group
300
Push Button
301
Relay Disabled Momentarily During Active Setting Group Change
301
Table 7.5 SEL OGIC Control Equation Settings for Switching Active Setting Group between Setting Groups 1 and
302
Figure 7.19 SCADA Contact Pulses Input IN105 to Switch Active Setting Group between Setting Groups 1 and
302
Table 7.6 Active Setting Group Switching Input Logic
304
Figure 7.21 Active Setting Group Switching (with Single Input) Time Line
304
Figure 7.22 Rotating Selector Switch Connected to Inputs IN101, IN102, and IN103 for Active Setting Group Switching
305
Selector Switch Now Rests on Position REMOTE
306
Figure 7.23 Active Setting Group Switching (with Rotating Selector Switch) Time Line
307
Active Setting Group Retained
307
Settings Change
307
Note: Make Active Setting Group Switching Settings with Care
308
SEL OGIC Control Equation Variables/Timers
309
Settings Example
310
Output Contacts
313
Operation of Output Contacts for Different Output Contact Types
313
ALARM Output Contact
314
Figure 7.27 Logic Flow for Example Output Contact Operation
315
Figure 7.28 Logic Flow for Example Output Contact Operation-Extra I/O Board
316
Rotating Default Display
317
Figure 7.29 Traditional Panel Light Installations
317
Reclosing Relay Status Indication
317
Circuit Breaker Status Indication
317
Figure 7.30 Rotating Default Display Replaces Traditional Panel Light Installations
318
General Operation of Rotating Default Display Settings
318
Reclosing Relay Enabled
318
Additional Settings Examples
320
Continually Display a Message
320
Active Setting Group Switching Considerations
321
Setting Group 1 Is the Active Setting Group
321
Displaying Values (Other than Userentered Text) on the Rotating Default Display
322
Values Displayed for Incorrect Settings
323
Table 7.8 Mnemonic Settings for Metering on the Rotating Default Display
324
Extra Details for Displaying Breaker Wear Monitor Quantities on the Rotating Default Display
327
Section 8: Breaker Monitor, Metering, and Load Profile Functions
327
Table 7.9 Mnemonic Settings for Breaker Wear Monitor Values on the Rotating Default Display
328
Extra Details for Displaying Time-Overcurrent Elements on the Rotating Default Display
328
Displaying Time-Overcurrent Elements Example
329
Table 7.10 Mnemonic Settings for Time-Overcurrent (TOC) Element Pickups on the Rotating Default
330
Additional Format for Displaying Time-Overcurrent Elements on the Rotating Default Display
330
Table 7.11 Mnemonic Settings for Time-Overcurrent (TOC) Element Pickups Using the Same-Line-Label Format on the Rotating Default Display
330
Control Strings
332
Breaker Monitor, Metering, and Load Profile Functions
334
Introduction
334
Breaker Monitor
335
Table 8.1 Breaker Maintenance Information for a 25 Kv Circuit Breaker
335
Breaker Monitor Setting Example
336
Figure 8.1 Plotted Breaker Maintenance Points for a 25 Kv Circuit Breaker
336
Table 8.2 Breaker Monitor Settings and Settings Ranges
336
Breaker Maintenance Curve Details
337
Figure 8.2 SEL-351S Breaker Maintenance Curve for a 25 Kv Circuit Breaker
338
Figure 8.3 Operation of SEL OGIC Control Equation Breaker Monitor Initiation Setting
339
Breaker Monitor Operation Example
339
Percent to 25 Percent Breaker Wear
340
Percent to 50 Percent Breaker Wear
340
Percent to 100 Percent Breaker Wear
340
Figure 8.4 Breaker Monitor Accumulates 10 Percent Wear
341
Figure 8.5 Breaker Monitor Accumulates 25 Percent Wear
342
Figure 8.6 Breaker Monitor Accumulates 50 Percent Wear
343
Figure 8.7 Breaker Monitor Accumulates 100 Percent Wear
344
Breaker Monitor Output
344
Via Serial Port
345
Determination of Relay Initiated Trips and Externally Initiated Trips
345
Factory Default Setting Example
346
Additional Example
346
Figure 8.8 Input IN106 Connected to Trip Bus for Breaker Monitor Initiation
346
Station DC Battery Monitor
348
Figure 8.9 DC Under- and Overvoltage Elements
348
Create Desired Logic for DC Under- and Overvoltage Alarming
348
View Station DC Battery Voltage
350
Station DC Battery Voltage Dips During Circuit Breaker Tripping
351
Station DC Battery Voltage Dips During Circuit Breaker Closing
351
Station DC Battery Voltage Dips Anytime
351
Powering the Relay
352
Demand Metering
353
Comparison of Thermal and Rolling Demand Meters
353
Figure 8.11 Response of Thermal and Rolling Demand Meters to a Step Input (Setting DMTC = 15 Minutes)
354
Thermal Demand Meter Response (EDEM = THM)
355
Figure 8.12 Voltage
355
Rolling Demand Meter Response (EDEM = ROL)
355
Time = 0 Minutes
356
Time = 5 Minutes
356
Time = 10 Minutes
356
Time = 15 Minutes
357
Table 8.3 Demand Meter Settings and Settings Range
357
Demand Current Logic Output Application-Raise Pickup for Unbalance Current
358
Figure 8.14 Raise Pickup of Residual Ground Time-Overcurrent Element for Unbalance Current
359
Residual Ground Demand Current below Pickup GDEMP
359
Residual Ground Demand Current Goes above Pickup GDEMP
359
Demand Metering Updating and Storage
361
Energy Metering
362
Energy Metering Updating and Storage
362
Maximum/Minimum Metering
363
Table 8.4 Operation of Maximum/Minimum Metering with Directional Power Quantities
363
Maximum/Minimum Metering Update and Storage
364
Small Signal Cutoff for Metering
365
Table 8.5 Metering Thresholds (Secondary Units)
365
Synchrophasor Metering
366
View Synchrophasor Metering Information Via Serial Port
366
Load Profile Report (Available in Firmware Versions 6 and 7)
367
Determining the Size of the Load Profile Buffer
370
Clearing the Load Profile Buffer
370
Setting the Relay
372
Table 9.1 Serial Port SET Commands
372
In some Applications, Make Global Settings (SET G) First
372
Section 9: Setting the Relay Introduction
373
Settings Changes Via the Front Panel
374
Settings Changes Via the Serial Port
375
Table 9.2 Set Command Editing Keystrokes
375
Time-Overcurrent Curves
376
Table 9.3 Equations Associated with U.S. Curves
376
Table 9.4 Equations Associated with IEC Curves
376
Recloser Curves
377
Table 9.5 Recloser Curve Designations
377
Figure 9.1 U.S. Moderately Inverse Curve: U1
378
Figure 9.2 U.S. Inverse Curve: U2
379
Figure 9.3 U.S. very Inverse Curve: U3
380
Figure 9.4 U.S. Extremely Inverse Curve: U4
381
Figure 9.5 U.S. Short-Time Inverse Curve: U5
382
Figure 9.6 I.E.C. Class a Curve (Standard Inverse): C1
383
Figure 9.7 I.E.C. Class B Curve (very Inverse): C2
384
Figure 9.8 I.E.C. Class C Curve (Extremely Inverse): C3
385
Figure 9.9 I.E.C. Long-Time Inverse Curve: C4
386
Figure 9.10 I.E.C. Short-Time Inverse Curve: C5
387
Figure 9.11 Recloser Control Response Curves A, C, N, and W
388
Figure 9.12 Recloser Control Response Curves B, R, 2, and 3
389
Figure 9.13 Recloser Control Response Curves D, 8PLUS, and 16
390
Figure 9.14 Recloser Control Response Curves F, H, J, and 1
391
Figure 9.15 Recloser Control Response Curves G, V, 6, and 13
392
Figure 9.16 Recloser Control Response Curves E, P, and 18
393
Figure 9.17 Recloser Control Response Curves KG, Y, Z, and 5
394
Figure 9.18 Recloser Control Response Curves KP, M, T, and 17
395
Figure 9.19 Recloser Control Response Curves 4, 9, 11, and 14
396
Figure 9.20 Recloser Control Response Curves L, 7, 8, and 15
397
Relay Word Bits (Used in SEL OGIC Control Equations)
398
Table 9.6 SEL-351S Relay Word Bits
398
Table 9.7 Relay Word Bit Definitions for SEL-351S
400
Settings Explanations
419
Identifier Labels
419
Current Transformer Ratios
419
Settings for Voltage Input Configuration
421
Table 9.8 Main Relay Functions that Change with VSCONN, When PTCONN = WYE
422
Table 9.9 Main Relay Functions that Change with VSCONN, When PTCONN = DELTA
423
Figure 9.21 Operation of DELTA and 3V0 Relay Word Bits
423
Table 9.10 Main Relay Functions that Change with VNOM = off
424
Potential Transformer Ratios and PT Nominal Secondary Voltage Settings
424
Line Settings
425
Figure 9.22 Hybrid Power System with Neutral Ground Resistor
425
Other System Parameters
426
Settings Sheets
428
SEL-351S Settings Sheets
430
Relay Settings
430
Instantaneous/Definite-Time Overcurrent Enable Settings
431
Time-Overcurrent Enable Settings
431
Other Enable Settings
431
Phase-To-Phase Instantaneous Overcurrent Elements
433
Phase Time-Overcurrent Element
435
Frequency Element
441
Other Settings
443
Power Elements
444
Communications-Assisted Trip Scheme Input Equations
447
Torque Control Equations for Inst./Def.-Time Overcurrent Elements
449
Torque Control Equations for Time-Overcurrent Elements
449
Output Contact Equations
450
Other Equations
452
Global Settings (Serial Port Command SET G and Front Panel)
454
Local Bit Labels
460
Section 10: Serial Port Communications and Commands
467
Port Connector and Communications Cables
467
Relay Word Bit TIRIG
467
Relay Word Bit TSOK
467
Figure 10.1 DB-9 Connector Pinout for EIA-232 Serial Ports
467
Table 10.1 Pinout Functions for EIA-232 Serial Ports 2, 3, and
467
Table 10.2 Terminal Functions for EIA-485 Serial Port 1
467
SEL-351S to Computer
468
SEL-351S to Modem
468
SEL-351S to SEL-PRTU
469
SEL-351S to SEL-DTA2
469
Table 10.3 Serial Communications Port Pin/Terminal Function Definitions
469
Communications Protocol
471
SEL Distributed Port Switch Protocol (LMD)
472
SEL Fast Meter Protocol
472
SEL Compressed ASCII Protocol
473
SEL Fast Sequential Events Recorder (SER) Protocol
473
SEL Fast Message Synchrophasor Protocol
473
Serial Port Automatic Messages
474
Table 10.4 Serial Port Automatic Messages
474
Serial Port Access Levels
475
Access Level B
476
Table 10.5 Serial Port Command Summary
477
Command Explanations
479
Password Requirements
479
Access Level Attempt (Password Required)
479
Access Level Attempt (Password Not Required)
480
BRE Command (Breaker Monitor Data)
480
COMM Command (Communication Data-Available in Firmware Versions 6 and 7)
481
DAT Command (View/Change Date)
482
EVE Command (Event Reports)
482
GRO Command (Display Active Setting Group Number)
482
HIS Command (Event Summaries/History)
483
MET K-Instantaneous Metering
485
MET X K-Extended Instantaneous Metering
486
MET D-Demand Metering
488
MET E-Energy Metering
489
MET M-Maximum/Minimum Metering
490
QUI Command (Quit Access Level)
491
SER Command (Sequential Events Recorder Report)
492
SHO Command (Show/View Settings)
492
STA Command Row and Column Definitions
498
TAR Command (Display Relay Element Status)
499
Table 10.6 SEL-351S Word and Its Correspondence to TAR Command
500
TIM Command (View/Change Time)
501
TRI Command (Trigger Event Report)
501
BRE N Command (Preload/Reset Breaker Wear)
502
CLO Command (Close Breaker)
503
GRO N Command (Change Active Setting Group)
503
OPE Command (Open Breaker)
504
PUL Command (Pulse Output Contact)
504
CON Command (Control Remote Bit)
505
Table 10.7 SEL-351S Control Subcommand
506
PAS Command (Change Passwords)
507
Table 10.8 Factory Default Passwords for Access Levels 1, B, and 2
507
Table 10.9 Valid Password Characters
508
SET Command (Change Settings)
508
VER Command (Show Relay Configuration and Firmware Version)
508
Command Summary
510
SEL-351S Relay Command Summary
510
Section 11: Front-Panel Interface
514
Introduction
514
Front-Panel Pushbutton Operation
515
Figure 11.1 SEL-351S Front-Panel Pushbuttons-Overview
515
Primary Functions
515
Figure 11.2 SEL-351S Front-Panel Pushbuttons-Primary Functions
516
Front-Panel Password Security
516
Figure 11.3 SEL-351S Front-Panel Pushbuttons-Primary Functions (Continued)
517
Secondary Functions
517
Figure 11.4 SEL-351S Front-Panel Pushbuttons-Secondary Functions
518
Functions Unique to the Front-Panel Interface
519
Reclosing Relay Shot Counter Screen
519
Figure 11.5 Local Control Switch Configured as an ON/OFF Switch
521
Figure 11.6 Local Control Switch Configured as an OFF/MOMENTARY Switch
521
Figure 11.7 Local Control Switch Configured as an ON/OFF/MOMENTARY Switch
521
Rotating Default Display
525
Front-Panel Neutral/Ground Current Display
528
Additional Rotating Default Display Example
528
Operator Controls
529
Table 11.1 SEL-351S Front-Panel Operator Control Functions
529
Figure 11.8 Operator Controls-{GROUND ENABLED}-{LOCK
532
Figure 11.9 Operator Controls-{HOT LINE TAG} through {TRIP} (Model 0351Sxxx3)
532
Detailed Operator Control Pushbutton Output
532
Figure 11.10 {GROUND ENABLED} Operator Control Pushbutton Output
533
LOCK} Operator Control Pushbutton Output
533
TRIP} and {CLOSE} Operator Control Pushbutton Outputs
534
Figure 11.12 {CLOSE} Operator Control Pushbutton Output
535
Figure 11.13 {TRIP} Operator Control Pushbutton Output
535
GROUND ENABLED} Operator Control
536
Figure 11.14 {GROUND ENABLED} Operator Control LED and Logic
537
RECLOSE ENABLED} and {HOT LINE TAG} Operator Controls
537
Figure 11.15 {RECLOSE ENABLED} and {HOT LINE TAG ENABLED} Operator Control Logic
538
Figure 11.16 {REMOTE ENABLED} Operator Control Logic
538
Example Application for the {REMOTE ENABLED} Operator Control
539
Figure 11.17 Example {REMOTE ENABLED} Operator Control Application (Supervising Remote Control of Ground Overcurrent Elements)
539
Figure 11.18 {AUX 1} Operator Control Logic
539
Figure 11.19 {AUX 2} Operator Control Logic
540
ALTERNATE SETTINGS} Operator Control
540
Figure 11.20 {ALTERNATE SETTINGS} Operator Control LED and Logic
541
LOCK} Operator Control
541
Figure 11.21 {LOCK} Operator Control LED and Logic
542
Introduction
544
Standard 15/30-Cycle Event Reports
545
Standard Event Report Triggering
545
Table 12.1 Event Types
547
Figure 12.1 Example Event Summary
547
Fault Location
548
Retrieving Full-Length Standard Event Reports
548
Synchrophasor-Level Accuracy in Event Reports
550
Figure 12.2 Example Synchrophasor-Level Precise Event Report 1/16-Cycle Resolution
550
Table 12.2 Standard Event Report Current, Voltage, and Frequency Columns
552
Variable Scaling for Analog Values
552
Output, Input, and Protection, and Control Columns
553
Table 12.3 Output, Input, and Protection, and Control Element Event Report Columns
553
Sequential Events Recorder (SER) Report
568
SER Triggering
568
Retrieving SER Reports
569
Clearing SER Report
570
Example Standard 15-Cycle Event Report
571
Figure 12.3 Example Standard 15-Cycle Event Report 1/4-Cycle Resolution
573
Figure 12.4 Example Partial Event Report with Delta-Connected Pts
574
Figure 12.5 Derivation of Event Report Current Values and RMS Current Values from Sampled
575
Figure 12.6 Derivation of Phasor RMS Current Values from Event Report Current Values
576
Example SER Report
577
Figure 12.7 Example SER Report
577
Sag/Swell/Interruption (SSI) Report (Available in Firmware Version 7)
579
SSI Report Entries
579
Table 12.4 SSI Element Status Columns
580
Table 12.5 Status SSI Column
580
Retrieving the SSI Report
582
Sample SSI Report
585
Figure 12.8 Example Sag/Swell/Interruption (SSI) Report (PTCONN = WYE)
586
Figure 12.9 Example Sag/Swell/Interruption (SSI) Report (PTCONN = DELTA)
586
Section 13: Testing and Troubleshooting
588
Introduction
588
Testing Philosophy
589
Acceptance Testing
589
Commissioning Testing
589
Maintenance Testing
590
Testing Methods and Tools
592
Figure 13.1 Low-Level Test Interface (J1 or J10) Connector
593
Table 13.1 Resultant Scale Factors for Input Module
593
Using the Low-Level Test Interface When Global Setting PTCONN = DELTA
593
Testing Via Sequential Events Recorder
595
Relay Self-Tests
596
Table 13.2 Relay Self-Tests
596
Relay Troubleshooting
598
Inspection Procedure
598
Troubleshooting Procedure
598
Relay Meter Command Does Not Respond as Expected
599
Relay Calibration
600
Factory Assistance
601
Firmware and Manual Versions
602
Determining the Firmware Version in Your Relay
602
Table A.1 Firmware Revision History
602
Appendix A: Firmware and Manual Versions Firmware
603
Instruction Manual
607
Table A.2 Instruction Manual Revision History
607
Overview
618
Relay Firmware Upgrade Instructions
618
Introduction for Relay Firmware Upgrades
618
Optional Equipment
619
Upgrade Procedure
619
Prepare the Relay
619
Figure B.1 Establishing a Connection
620
Figure B.2 Determining the Computer Serial Port
621
Figure B.3 Determining Communications Parameters for the Computer
621
Figure B.4 Setting Terminal Emulation
622
Figure B.5 Terminal Emulation Startup Prompt
622
Failure to Connect
622
Figure B.6 Correcting the Port Setting
623
Figure B.7 Correcting the Communications Parameters
623
Save Settings and Other Data
623
Backup Relay Settings
624
Start SEL
625
Figure B.8 Preparing Hyperterminal for ID Command Display
625
Figure B.9 List of Commands Available in SEL
626
Establish a High-Speed Connection
626
Match Computer Communications Speed to the Relay
626
Figure B.10 Matching Computer to Relay Parameters
627
Download Existing Firmware
627
Figure B.11 Example Receive File Dialog Box
627
Figure B.12 Example Filename Identifying Old Firmware Version
628
Figure B.13 Downloading Old Firmware
628
Upload New Firmware
628
Figure B.14 Selecting New Firmware to Send to the Relay
629
Figure B.15 Transferring New Firmware to the Relay
630
No Access Level 0 = Prompt
630
Table B.1 Troubleshooting New Firmware Upload
630
Check Relay Self-Tests
631
Verify Settings, Calibration, Status, Breaker Wear, and Metering
633
Figure B.16 Preparing Hyperterminal for ID Command Display
634
Return the Relay to Service
635
Ethernet Port Firmware Upgrade Instructions
635
Required Equipment
635
Figure B.17 Establishing an FTP Connection
636
Figure B.18 Alternate Method of Establishing an FTP Connection
637
Figure B.19 Read (Open) File
637
Figure B.20 Page Cannot be Displayed Window
638
Transfer New Firmware
638
Establish a Telnet Connection
638
Verify Firmware Transfer
638
SEL Distributed Port Switch Protocol
640
Appendix C: SEL Distributed Port Switch Protocol Settings
641
Operation
642
Appendix D: Configuration, Fast Meter, and Fast Operate Commands
645
Message Lists
645
Table D.1 Binary Message List
645
Table D.2 ASCII Configuration Message List
645
Message Definitions
646
Table D.3 A5CO Relay Definition Block
646
Table D.4 A5C1 Fast Meter Configuration Block
646
Table D.5 A5D1 Fast Meter Data Block
648
A5C2/A5C3 Demand/Peak Demand Fast Meter Configuration Messages
648
Table D.6 A5C2/A5C3 Demand/Peak Demand Fast Meter Configuration Messages
649
Table D.7 A5D2/A5D3 Demand/Peak Demand Fast Meter Message
651
Table D.8 A5CE Fast Operate Configuration Block
651
Table D.9 AFE0 Fast Operate Remote Bit Control
653
Table D.10 A5E3 Fast Operate Breaker Control
654
Table D.11 A5CD Fast Operate Reset Definition Block
654
Table D.12 A5ED Fast Operate Reset Command
655
DNA Message
655
BNA Message
657
SNS Message
657
Appendix E: Compressed ASCII Commands
658
CASCII Command-General Format
659
CASCII Command-SEL-351S
661
CSTATUS Command-SEL-351S
662
CHISTORY Command-SEL-351S
663
CEVENT Command-SEL-351S
664
Appendix F: Setting Negative-Sequence Overcurrent Elements
668
Setting Negative-Sequence Definite-Time Overcurrent Elements
668
Setting Negative-Sequence Time-Overcurrent Elements
669
Figure F.1 Minimum Response Time Added to a Negative-Sequence Time-Overcurrent Element 51QT
669
Coordinating Negative-Sequence Overcurrent Elements
670
Coordination Guidelines
670
Coordination Example
671
Figure F.2 Distribution Feeder Protective Devices
671
Figure F.3 Traditional Phase Coordination
671
Apply the Feeder Relay Negative-Sequence Overcurrent Element
672
Figure F.4 Phase-To-Phase Fault Coordination
672
Figure F.5 Negative-Sequence Overcurrent Element Derived from Equivalent Phase Overcurrent Element, 51EP
673
Negative-Sequence Overcurrent Element Applied at a Distribution Bus (Guideline 5)
673
Ground Coordination Concerns
673
Other Negative-Sequence Overcurrent Element References
674
Appendix G: Setting SEL OGIC Control Equations
676
Relay Word Bits
677
Table G.1 Logic Outputs of the Phase Time-Overcurrent Element
677
Phase Time-Overcurrent Element 51P1T Pickup Indication
677
Table G.2 Common Uses for Relay Word Bits 51P1, 51P1T, and 51P1R
678
SEL OGIC Control Equations
680
Table G.3 SEL OGIC Control Equation Operators (Listed in Processing Order)
680
SEL OGIC Control Equation NOT Operator
681
Example of NOT Operator ! Applied to Single Element
681
Example of NOT Operator ! Applied to Multiple Elements (Within Parentheses)
681
SEL OGIC Control Equation Rising Edge Operator
682
Table G.4 Relay Word Bits in Factory Setting Example
682
Figure G.1 Result of Rising Edge Operators on Individual Elements in Setting er
683
SEL OGIC Control Equation Falling Edge Operator
683
Figure G.2 Result of Falling Edge Operator on a Deasserting Underfrequency Element
684
Table G.5 SEL OGIC Control Equation Settings Limitations
687
Processing Order and Processing Interval
688
Table G.6 Processing Order of Relay Elements and Logic (Top to Bottom)
688
Table G.7 Asynchronous Processing Order of Relay Elements
690
Appendix H: Distributed Network Protocol
692
Overview
692
Configuration
693
Table H.1 Port Settings for Standard Mode DNP Operation
693
Table H.2 Port Settings for Extended Mode DNP Operation
693
EIA-232 Physical Layer Operation
695
Data-Link Operation
696
Data Access Method
697
Table H.3 Data Access Methods
697
Device Profile
698
Table H.4 SEL-351S DNP3 Device Profile
698
Object Table
700
Table H.5 SEL-351S DNP Object Table
700
Data Map
705
Table H.6 SEL-351S DNP Data Map
705
Table H.7 Analog 105 Upper Byte Definitions
708
Table H.8 Analog 105 Lower Byte Definitions
708
Table H.9 Control Field
708
Relay Summary Event Data
709
Point Remapping
711
Appendix I: MIRRORED BITS Communications (in Firmware Versions 6 and 7) Overview
717
Table I.1 MIRRORED BITS
717
Operation
718
Message Transmission
718
Message Decoding and Integrity Checks
718
Loopback Testing
719
Channel Monitoring
719
Table I.2 Error Types Reported by the Communications Report
719
MIRRORED BITS Protocol for the Pulsar 9600 Baud Modem
721
Settings
722
Appendix J: SEL-351S Fast SER Protocol
726
Introduction
726
Make Sequential Events Recorder (SER) Settings with Care
727
Recommended Message Usage
728
Functions and Function Codes
729
Table J.1 Function Code 01 Message Format
729
Table J.2 02 Function Code Message Format
730
Table J.3 Function Code 18 Message Format
730
Table J.4 Message Format for Lost SER Records
731
Acknowledge Message Sent from Master to Relay, and from Relay to Master
732
Table J.5 Acknowledge Message Format
732
Table J.6 Supported Response Codes
732
Appendix K: AC SEL ERATOR Quickset SEL-5030 Software
734
Introduction
734
AC SEL ERATOR Quickset System Requirements
735
Installation
736
Starting AC SEL ERATOR Quickset
737
Appendix Lsel Synchrophasors
738
Overview
738
Introduction
739
Synchrophasor Measurement
740
Figure L.1 Phase Reference
740
External Equipment Compensation
741
Figure L.2 Waveform at Relay Terminals May Have Phase Shift
741
Figure L.3 Correction of Measured Phase Angle
741
Protocol Operation
742
Table L.1 SEL Fast Message Protocol Format
742
Table L.2 Unsolicited Fast Message Enable Packet
743
Table L.3 Unsolicited Fast Message Disable Packet
743
Table L.4 Permissible Message Periods Requested by Enable Message
744
Settings
745
Table L.5 SEL-351S Global Settings for Synchrophasors
745
Table L.6 SEL-351S Serial Port Settings for Synchrophasors
745
Descriptions of Synchrophasor Settings
746
Synchrophasor Relay Word Bits
748
Table L.7 Time Synchronization Relay Word Bits
748
View Synchrophasors by Using the MET PM Command
749
Figure L.4 Sample MET PM Command Response
750
Communications Bandwidth
751
Table L.8 SEL Fast Message Voltage and Current Selections Based on PHDATAV and PHDATAI
751
SEL-351S Relay Command Summary
752
Elements
753
Display
754
Irrored Bits Irrored Bits
757
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