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Siemens 7PG2113 Technical Manual

Siemens 7PG2113 Technical Manual

Feeder protection
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7PG2113/4/5/6
Feeder protection
Document Release History
This document is issue 2010/08. The list of revisions up to and including this issue is:
2010/08
Software Revision History
2009/04
2436H80003R1g-1c 7PG2113/5
2436H80004R1g-1c 7PG2114/6
The copyright and other intellectual property rights in this document, and in any model or article produced from it
(and including any registered or unregistered design rights) are the property of Siemens Protection Devices
Limited. No part of this document shall be reproduced or modified or stored in another form, in any data retrieval
system, without the permission of Siemens Protection Devices Limited, nor shall any model or article be
reproduced from this document unless Siemens Protection Devices Limited consent.
While the information and guidance given in this document is believed to be correct, no liability shall be accepted
for any loss or damage caused by any error or omission, whether such error or omission is the result of
negligence or any other cause. Any and all such liability is disclaimed.
©2010 Siemens Protection Devices Limited
7PG2113/4/5/6 Commissioning & Maintenance
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  • Page 1 Limited. No part of this document shall be reproduced or modified or stored in another form, in any data retrieval system, without the permission of Siemens Protection Devices Limited, nor shall any model or article be reproduced from this document unless Siemens Protection Devices Limited consent.

  • Page 2: Table Of Contents

    7PG2113/4/5/6 Commissioning & Maintenance Contents Section 1: Common Functions ..........................6 1.1 Overview ..............................6 1.2 Before Testing............................6 1.2.1 Safety............................6 1.2.2 Sequence of Tests ........................6 1.2.3 Test Equipment......................... 7 1.2.4 Use of PC to facilitate testing ....................7 1.2.5...
  • Page 3 1 or 2 Phase VT fail ........................ 62 3.2.2 3 Phase VT fail........................63 3.3 Current Transformer Supervision (60CTS) ..................64 3.3.1 7PG2113 & 7PG2115 ......................64 3.3.2 7PG2114 & 7PG2116 ......................65 3.4 Broken Conductor (46BC)........................66 3.5 Trip/Close Circuit Supervision (74T/CCS)................... 68 3.6 Magnetising Inrush Detector (81HBL) ....................
  • Page 4 Figure 2.16-1 Neutral Overvoltage......................... 58 Figure 3.1-1 CB Fail............................... 60 Figure 3.2-1 Voltage Transformer Supervision ...................... 62 Figure 3.3-1 Current Transformer Supervision 7PG2113/5 ................... 64 Figure 3.3-2 Current Transformer Supervision 7PG2114/6 ................... 65 Figure 3.4-1 Broken Conductor..........................66 Figure 3.5-1 Trip Circuit Supervision........................68 Figure 3.6-1 Magnetising Inrush Detector......................
  • Page 5 7PG2113/4/5/6 Commissioning & Maintenance Table 2.7-1 Directional Limits Test Results ......................34 Table 2.7-2 50N Results............................. 34 Table 2.7-3 51N Results............................. 34 Table 2.7-4 Standard Timings ..........................35 Table 2.7-5 51N Element Blocking ........................35 Table 2.7-6 Standard ResetTiming........................36 Table 2.7-7...

  • Page 6: Section 1: Common Functions

    7PG2113/4/5/6 Commissioning & Maintenance Section 1: Common Functions Overview Commissioning tests are carried out to prove: Equipment has not been damaged in transit. Equipment has been correctly connected and installed. Characteristics of the protection and settings which are based on calculations.

  • Page 7: Test Equipment

    7PG2113/4/5/6 Commissioning & Maintenance 1.2.3 Test Equipment Required test equipment is: 1. A 500V insulation-resistance test-set. Secondary injection equipment with integral time interval meter Primary injection equipment A power source with nominal voltage within the working range of the relay's auxiliary supply rating.

  • Page 8: Inspection

    7PG2113/4/5/6 Commissioning & Maintenance 1.2.6 Inspection Ensure that all connections are tight and correct to the relay wiring diagram and the scheme diagram. Record any deviations. Check that the relay is correctly programmed and that it is fully inserted into the case. Refer to ‘Section 2: Settings and Instruments’...

  • Page 9: Secondary Wiring Insulation-Resistance Test

    7PG2113/4/5/6 Commissioning & Maintenance Note. If the current transformers associated with the protection are located in power transformer bushings it may not be possible to apply test connections between the current transformer and the power transformer windings. Primary injection is needed, however, to verify the polarity of the CTs. In these circumstances primary current must be injected through the associated power transformer winding.

  • Page 10: Pilot Insulation-Resistance Test

    7PG2113/4/5/6 Commissioning & Maintenance Figure 1.3-2 CT Polarity test 2 arrangement Connect the test supply to simulate a yellow earth fault as shown in Figure 1.3-2 CT Polarity test 2 arrangement. Inject a suitable value of primary current and check the readings on ammeters X and Y. The reading of ammeter X should equal the reading of the ammeter Y which is connected in the yellow phase C.T.

  • Page 11: Pilot Connection Check

    7PG2113/4/5/6 Commissioning & Maintenance With the pilots disconnected at both ends of the feeder, join the cores together at one end and measure the pilot- loop resistance from the other end. If the pilot loop resistance is less than the standard value for the particular arrangement being used (See Table 1.3-2) add padding resistance at each end.

  • Page 12: Putting Into Service

    7PG2113/4/5/6 Commissioning & Maintenance or T1 (depending upon which tapping is being used) at one end of the feeder to the equivalent transformer terminal at the other end of the feeder. 1.3.8 Putting into Service After tests have been performed satisfactorily the relay should be put back into service as follows:- Remove all test connections.

  • Page 13: Stability Tests

    7PG2113/4/5/6 Commissioning & Maintenance 77.5 88.5 Table 1.4-1 Test of fault settings If it is convenient to permit operation of the circuit breaker at this stage, repeat one of the tests with the trip links inserted. Increase the primary current to the setting of the protection; the circuit breaker should then operate thus proving the tripping circuit.

  • Page 14: Figure 1.4-2 -Connections For Stability Tests On Load Without Isolating Transformers

    If the pilots and current transformers are correctly connected the d.c. current in the operating coils of the relays should be negligible. If damage has been sustained a claim should immediately be made against the carrier and the local Siemens office should be informed.

  • Page 15: Alternative Tests If Primary Injection Equipment Is Not Available

    7PG2113/4/5/6 Commissioning & Maintenance Conditions of current transformers connections Primary Secondary Tripping relay current (A) current (A) (mA d.c.) Feeder ends Normal Reverse Normal Reverse Normal Reverse Feeder ends Normal Reverse Normal Reverse Normal Reverse Table 1.4-2 stability tests Reverse the current direction to terminals E23 and E24 at one end of the feeder by reversing connectings at the test socket to simulate an internal A-E fault.

  • Page 16: Current Transformer Ratio And Polarity Tests

    7PG2113/4/5/6 Commissioning & Maintenance Figure 1.4-4 -Connections for Overall Fault setting Tests by Secondary Injection 1.4.4 Current transformer ratio and polarity tests Remove the trip links at both ends of the feeder. Connect ammeters in the current transformer secondary leads at each end in turn, as shown in Figure 1.4-5.

  • Page 17: Check Of Secondary Connections

    7PG2113/4/5/6 Commissioning & Maintenance 1.4.5 Check of secondary connections The purpose of these tests is to establish that the secondary wiring between the current-transformers and the summation-transformer at each end is in accordance with the particular diagram supplied for the installation.

  • Page 18: Binary Inputs

    7PG2113/4/5/6 Commissioning & Maintenance Binary Inputs The operation of the binary input(s) can be monitored on the ‘Binary Input Meters’ display shown in ‘Instruments Mode’. Apply the required supply voltage onto each binary input in turn and check for correct operation.

  • Page 19: Connections For Use In Solkor R Mode

    7PG2113/4/5/6 Commissioning & Maintenance 1.6.1 Connections for use in Solkor R Mode Solkor-R/Rf relays can be connected for operation in the Solkor-R mode. This flexibility allows the relays to be installed with Solkor-Rf relays at both feeder ends, or with a Solkor-R/Rf relay in the R mode at one end and a Solkor-R relay at the other.

  • Page 20: Binary Outputs

    7PG2113/4/5/6 Commissioning & Maintenance Binary Outputs A minimum of five output relays are provided. Two of these have change over contacts, BO1 & BO2 and the remainder have normally open contacts. Care should be observed with regard to connected devices when forcing contacts to operate for test purposes.

  • Page 21: Section 2: Protection Functions

    Section 2: Protection Functions This section details the procedures for testing each protection function of the 7PG2113/4/5/6 relays. These tests are carried out to verify the accuracy of the protection pick-ups and time delays at setting and to confirm correct operation of any associated input and output functionality.

  • Page 22: Current Differential (87)

    7PG2113/4/5/6 Commissioning & Maintenance It should be considered that where several overlapping elements are used simultaneously, the overall protection operate time may be dependent on the operation of different individual elements at the various levels of applied current or voltage. The resulting composite characteristic may be tested by enabling all of the relevant applicable elements or the element operations can be separated or disabled and tested individually.

  • Page 23: Figure 2.2-1 Directional Phase Fault Boundary System Angles

    7PG2113/4/5/6 Commissioning & Maintenance directional boundaries in the opposite (lag) direction. The recorded angle should be the angle at which the phase current leads the phase-phase polarising voltage. This measurement is greatly simplified if the polarising reference voltage is set to 0deg and the current phase angle is measured with respect to this reference.

  • Page 24: Out Of 3 Logic

    7PG2113/4/5/6 Commissioning & Maintenance 2.2.1 2 out of 3 logic Ensure that at least 1 Phase Overcurrent element is set to Directional. Apply balanced nominal voltage. Apply current at a level above the 50/51 setting on phase A only at the characteristic angle for forward operation, normally 45º...

  • Page 25: Definite Time Overcurrent (50)

    7PG2113/4/5/6 Commissioning & Maintenance Voltage inputs may not be required for this function if the Phase Overcurrent functions are not directional but it may be advantageous to apply balanced 3 phase nominal rated voltage to the VT inputs during testing to avoid inadvertent operation of other functions.

  • Page 26: Table 2.3-4 50 Element Blocking Results

    7PG2113/4/5/6 Commissioning & Maintenance 2.3.2.1 Element Blocking The Phase Overcurrent elements can be blocked by Binary Input Inhibit, VT Supervision and Inrush Detector operation, as well as 79 Autoreclose settings for Inst/Delayed. The Characteristic can be modified by Cold Load (51-n only) and Voltage Controlled Overcurrent and can be made non-directional by VT Supervision.

  • Page 27: Voltage Controlled Overcurrent (51V)

    7PG2113/4/5/6 Commissioning & Maintenance Voltage Controlled Overcurrent (51V) 7SR12 (x2) (x4) (x4) (x2) (x4) (x4) (x2) (x4) (x4) (x2) (x4) (x4) 50BF (x4) (x4) NOTE: The use of some functions are mutually exclusive (x4) Note: Example shows Voltage Config =...

  • Page 28: Table 2.4-2 51V Operate Voltage

    7PG2113/4/5/6 Commissioning & Maintenance Apply nominal 3 phase balanced voltage. Increase the voltage such that the a-b voltage is 110% of the Voltage setting Gradually increase the a-b phase current or balanced 3P current until Pickup LED operates. Confirm result of Phase O/C test above.

  • Page 29: Cold Load (51C)

    7PG2113/4/5/6 Commissioning & Maintenance Cold Load (51C) Figure 2.5-1 Cold Load Voltage Inputs: ), V ), V ) for directional elements Current Inputs: ), I ), I Disable: 51V, 46, 49, 50CBF, 79 Map Pickup LED: 51-n - Self Reset The CB must be open for more than the Cold Load Pick-up Time to allow testing of this function.

  • Page 30: Inverse Time Overcurrent (51C)

    7PG2113/4/5/6 Commissioning & Maintenance Cold Load Enabled Disabled Pick-up Time & CB Open Drop-off Time See Delayed CB Closed Overcurrent (51-n) 51c-n Setting 51c-n Charact 51c-n Time Mult Reduced 51c-n Delay (DTL) Reduced Current Level Current 51c-n Min. Operate Time...

  • Page 31: Table 2.5-2 Standard Curve Timing

    7PG2113/4/5/6 Commissioning & Maintenance Calculated Timing values in seconds for TM =1.0 Curve 2 xIs 5 xIs 10.03 4.28 IEC-NI 13.50 3.38 IEC-VI 26.67 3.33 IEC-EI 120.00 30.00 IEC-LTI 3.80 1.69 ANSI-MI 7.03 1.31 ANSI-VI 9.52 1.30 ANSI-EI Table 2.5-2...

  • Page 32: Directional Earth Fault Polarity Check (67N)

    7PG2113/4/5/6 Commissioning & Maintenance Directional Earth Fault Polarity Check (67N) Derived Earth Fault, Measured Earth Fault and Sensitive Earth Fault elements can be set as directional. These are polarised from residual voltage, calculated from the 3 phase voltage inputs or the 3Vo input depending on the Phase Voltage Config setting in the CT/VT Config menu.

  • Page 33: Derived Earth Fault (67/50N, 67/51N)

    7PG2113/4/5/6 Commissioning & Maintenance Derived Earth Fault (67/50N, 67/51N) Figure 2.7-1 Derived Earth Fault Voltage Inputs: ), V ), V Current Inputs: ), I ), I Disable: 37, 46, 49, 60CTS, 50CBF, 60CTS, 46BC, 79 Map Pickup LED: 51N-n/50N-n - Self Reset Other protection functions may overlap with these functions during testing, it may be useful to disable some functions to avoid ambiguity.

  • Page 34: Directional Polarity

    7PG2113/4/5/6 Commissioning & Maintenance 2.7.1 Directional Polarity See section Directional Earth Fault Polarity Check above for testing details. Forward Reverse Lag (point C) Lead (point A) Lead(point B) Lag (point D) Pick-up Drop-off Pick-up Drop-off Pick-up Drop-off Pick-up Drop-off MTA-85...

  • Page 35: Table 2.7-4 Standard Timings

    7PG2113/4/5/6 Commissioning & Maintenance Calculated Timing values in seconds for TM =1.0 Curve 2 xIs 5 xIs 10.03 4.28 IEC-NI 13.50 3.38 IEC-VI 26.67 3.33 IEC-EI 120.00 30.00 IEC-LTI 3.80 1.69 ANSI-MI 7.03 1.31 ANSI-VI ANSI-EI 9.52 1.30 Table 2.7-4...

  • Page 36: Table 2.7-6 Standard Resettiming

    7PG2113/4/5/6 Commissioning & Maintenance ANSI Reset If the element is configured as an ANSI characteristic, it may have a reset delay applied. If ANSI reset is selected for an IEC characteristic element, the reset will be instantaneous. ANSI reset times from operated condition to fully reset are as follows for zero applied current and TM = 1.0. The reset curve characteristic type and TM is defined by the operating characteristic.

  • Page 37: Measured Earth Fault (67/50G,67/51G)

    7PG2113/4/5/6 Commissioning & Maintenance Measured Earth fault (67/50G,67/51G) Figure 2.8-1 Measured Earth Fault Voltage Inputs: ), V ), V ) for directional elements Current Inputs: Disable: 50CBF, 79 Map Pickup LED: 51G-n/50G-n - Self Reset Other protection functions may overlap with these functions during testing, it may be useful to disable some functions to avoid ambiguity.

  • Page 38: Directional Polarity

    7PG2113/4/5/6 Commissioning & Maintenance 2.8.1 Directional Polarity See section Directional Earth Fault Polarity Check above for testing details. Forward Reverse Lag (point C) Lead (point A) Lead(point B) Lag (point D) Pick-up Drop-off Pick-up Drop-off Pick-up Drop-off Pick-up Drop-off MTA-85...

  • Page 39: Table 2.8-4 Standard Timings

    7PG2113/4/5/6 Commissioning & Maintenance Calculated Timing values in seconds for TM =1.0 Curve 2 xIs 5 xIs 10.03 4.28 IEC-NI 13.50 3.38 IEC-VI 26.67 3.33 IEC-EI 120.00 30.00 IEC-LTI 3.80 1.69 ANSI-MI 7.03 1.31 ANSI-VI 9.52 1.30 ANSI-EI Table 2.8-4...

  • Page 40: Table 2.8-6 Standard Resettiming

    7PG2113/4/5/6 Commissioning & Maintenance 2.8.3.2 ANSI Reset If the element is configured as an ANSI characteristic, it may have a reset delay applied. If ANSI reset is selected for an IEC characteristic element, the reset will be instantaneous. ANSI reset times from operated condition to fully reset are as follows for zero applied current and TM = 1.0. The reset curve characteristic type and TM is defined by the operating characteristic.

  • Page 41: Sensitive Earth Fault (67/50S,67/51S)

    7PG2113/4/5/6 Commissioning & Maintenance Sensitive Earth fault (67/50S,67/51S) Figure 2.9-1 Sensitive Earth Fault Voltage Inputs: ), V ), V ) for directional elements Current Inputs: Disable: 64H, 50CBF, 79 Map Pickup LED: 51SEF-n/50SEF-n - Self Reset Other protection functions may overlap with these functions during testing, it may be useful to disable some functions to avoid ambiguity.

  • Page 42: Directional Polarity

    7PG2113/4/5/6 Commissioning & Maintenance 2.9.1 Directional Polarity See section Directional Earth Fault Polarity Check above for testing details. Forward Reverse Lag (point C) Lead (point A) Lead(point B) Lag (point D) Drop- Pick-up Drop-off Pick-up Drop-off Pick-up Pick-up Drop-off MTA+85...

  • Page 43: Table 2.9-4 Standard Timings

    7PG2113/4/5/6 Commissioning & Maintenance Calculated Timing values in seconds for TM =1.0 Curve 2 xIs 5 xIs 10.03 4.28 IEC-NI 13.50 3.38 IEC-VI 26.67 3.33 IEC-EI 120.00 30.00 IEC-LTI 3.80 1.69 ANSI-MI 7.03 1.31 ANSI-VI 9.52 1.30 ANSI-EI Table 2.9-4...

  • Page 44: Table 2.9-6 Standard Resettiming

    7PG2113/4/5/6 Commissioning & Maintenance 2.9.3.2 ANSI Reset If the element is configured as an ANSI characteristic, it may have a reset delay applied. If ANSI reset is selected for an IEC characteristic element, the reset will be instantaneous. ANSI reset times from operated condition to fully reset are as follows for zero applied current and TM = 1.0. The reset curve characteristic type and TM is defined by the operating characteristic.

  • Page 45: Restricted Earth Fault (64H)

    7PG2113/4/5/6 Commissioning & Maintenance 2.10 Restricted Earth fault (64H) Figure 2.10-1 Restricted Earth Fault Voltage Inputs: Current Inputs: Disable: 51SEF, 50SEF, 79 Map Pickup LED: 64H - Self Reset The setting resistance should be measured and the value compared to that specified in the settings data. Both values should be recorded.

  • Page 46: Table 2.10-2 64H Results

    7PG2113/4/5/6 Commissioning & Maintenance Phase P.U. Current Tolerance Operate Time Tolerance (Amps) (sec) Amps 2 x Is Table 2.10-2 64H Results It is also desirable to check the operating voltage achieved with the setting resistor and all parallel CTs connected but de-energised.

  • Page 47: Negative Phase Sequence Overcurrent (46Nps)

    7PG2113/4/5/6 Commissioning & Maintenance 2.11 Negative Phase Sequence Overcurrent (46NPS) Figure 2.11-1 Negative Phase Sequence Overcurrent Voltage Inputs: Current Inputs: ), I ), I Disable: 51, 51V, 51C, 37, 49, 50CBF, 60CTS, 46BC Map Pickup LED: 46IT/46DT - Self Reset Where two NPS elements are being used with different settings, it is convenient to test the elements with the highest settings first.

  • Page 48: Definite Time Nps Overcurrent (46Dt)

    7PG2113/4/5/6 Commissioning & Maintenance 2.11.1 Definite Time NPS Overcurrent (46DT) If DTL setting is small, gradually increase current until element operates. If DTL is large apply 0.9x setting, check for no operation, apply 1.1x setting, check operation Apply 2x setting current if possible and record operating time Phase P.U.

  • Page 49: Table 2.11-4 Standard Reset Timings

    7PG2113/4/5/6 Commissioning & Maintenance 2.11.2.1 ANSI Reset If the element is configured as an ANSI characteristic, it may have a reset delay applied. If ANSI reset is selected for an IEC characteristic element, the reset will be instantaneous. ANSI reset times from operated condition to fully reset are as follows for zero applied current and TM = 1.0. The reset curve characteristic type and TM is defined by the operating characteristic.

  • Page 50: Undercurrent (37)

    7PG2113/4/5/6 Commissioning & Maintenance 2.12 Undercurrent (37) Figure 2.12-1 Undercurrent Voltage Inputs: Current Inputs: ), I ), I Disable: 51N, 51G, 46, 60CTS, 46BC Map Pickup LED: 37-n - Self Reset If two Undercurrent 37 elements are used with different settings, it is convenient to test the element with the lowest setting first.

  • Page 51: Table 2.12-2 Element Blocking

    7PG2113/4/5/6 Commissioning & Maintenance 2.12.1.1 Element Blocking The Undercurrent elements can be blocked by Binary Input Inhibit. This functionality should be checked. Element BI Inhibits 37-1 37-2 Table 2.12-2 Element Blocking Check correct indication, trip output, alarm contacts, waveform record.

  • Page 52: Thermal Overload (49)

    7PG2113/4/5/6 Commissioning & Maintenance 2.13 Thermal Overload (49) Figure 2.13-1 Thermal Overload Voltage Inputs: Current Inputs: ), I ), I Disable: 51, 50, 37, 50CBF Map Pickup LED: 49Alarm The current can be applied from a 3P balanced supply or phase by phase from a 1P supply. Alternatively the 3 phase current inputs can be connected in series and injected simultaneously from a single 1P source.

  • Page 53: Table 2.13-1 Standard Timings

    7PG2113/4/5/6 Commissioning & Maintenance Time Constant (mins) Operate Time (sec) 17.3 34.5 51.8 86.3 51.8 1726 Table 2.13-1 Standard Timings The Thermal State must be in the fully reset condition in order to measure the operate time correctly. This can be achieved by setting change in the Thermal protection settings menu or by pressing the Test/Reset button when the Thermal Meter is shown in the Instruments Mode.

  • Page 54: 2.14 Over/Under Voltage

    7PG2113/4/5/6 Commissioning & Maintenance 2.14 Over/Under Voltage 2.14.1 Phase Under/Over Voltage (27/59) Figure 2.14-1 Phase Under/Over Voltage Voltage Inputs: ), V ), V Current Inputs: n/a apply zero current to stabilize other functions Disable: 47, 59N, 60VTS Map Pickup LED:...

  • Page 55: Table 2.14-1 27/59 Test Results

    7PG2113/4/5/6 Commissioning & Maintenance When testing is complete reinstate any of the disabled functions. Where more than one overvoltage (59) elements are being used with different settings, it is convenient to test the elements with the highest settings first. The elements with lower settings can then be tested without disabling the higher settings.

  • Page 56: Undervoltage Guard (27/59Uvg)

    7PG2113/4/5/6 Commissioning & Maintenance 2.14.2 Undervoltage Guard (27/59UVG) If any 27 Undervoltage element is set to be inhibited by the 27 Undervoltage Guard element, this function should be tested. Connect the test voltage inputs to suit the installation wiring diagram utilising any test socket facilities available. It may be useful to temporarily map an LED as ‘General Pickup’...

  • Page 57: Table 2.15-1 47 Test Results

    7PG2113/4/5/6 Commissioning & Maintenance Where two NPS elements are being used with different settings, it is convenient to test the elements with the highest settings first. The elements with lower settings can then be tested without disabling the lower settings.

  • Page 58: Neutral Overvoltage (59N)

    7PG2113/4/5/6 Commissioning & Maintenance 2.16 Neutral Overvoltage (59N) Figure 2.16-1 Neutral Overvoltage Voltage Inputs: ), V ), V Current Inputs: n/a apply zero current to stabilize other functions Disable: 27/59, 47, 60VTS Map Pickup LED: 59N-n - Self Reset The voltage source for the Neutral Overvoltage 59N function can be set as either Vn , calculated from the applied 3 phase voltage inputs or Vx, the V input.

  • Page 59: Inverse Time (59Nit)

    7PG2113/4/5/6 Commissioning & Maintenance 2.16.2 Inverse Time (59NIT) It will be advantageous to map the function being tested to temporarily drive the relevant Pickup output in the Pickup Config sub-menu in the Output Config menu as this will allow the Pick-up led to operate for the function.

  • Page 60: Section 3: Supervision Functions

    7PG2113/4/5/6 Commissioning & Maintenance Section 3: Supervision Functions CB Fail (50BF) Figure 3.1-1 CB Fail Voltage Inputs: Current Inputs: ), I ), I ), I Disable: Map Pickup LED: 50BF-n - Self Reset The circuit breaker fail protection time delays are initiated either from: A binary output mapped as Trip Contact in the OUTPUT CONFIG>BINARY OUTPUT CONFIG menu,...

  • Page 61: Element Blocking

    7PG2113/4/5/6 Commissioning & Maintenance 50BF-1 Delay…………… 50BF-2 Delay………………. 50BF Setting (xIn) Test Current (110%)…………. (90%)…………... No Operation □ No Operation □ 50BF CB Faulty Operation No Delay □ Operation No Delay □ 50BF-1 Delay…………… 50BF-2 Delay………………. 50BF-I4 Setting Test Current (xIn) (110%)………….

  • Page 62: Voltage Transformer Supervision (60Vts)

    7PG2113/4/5/6 Commissioning & Maintenance 3.2 Voltage Transformer Supervision (60VTS) Figure 3.2-1 Voltage Transformer Supervision Voltage Inputs: ), V ), V Current Inputs: ), I ), I Disable: 27, 47, 59N Map Pickup LED: 60VTS - Self Reset 3.2.1 1 or 2 Phase VT fail Apply 3P balanced nominal current and voltage.

  • Page 63: Phase Vt Fail

    7PG2113/4/5/6 Commissioning & Maintenance 3.2.2 3 Phase VT fail Apply 3P balanced nominal voltage and 3P balanced current at a level between the 60VTS Ipps Load setting and the 60VTS Ipps Fault setting. Reduce the balanced Voltage on all 3 phases until the VTS operates at the 60VTS Vpps setting.

  • Page 64: Current Transformer Supervision (60Cts)

    7PG2113/4/5/6 Commissioning & Maintenance Current Transformer Supervision (60CTS) 3.3.1 7PG2113 & 7PG2115 Figure 3.3-1 Current Transformer Supervision 7PG2113/5 Current Inputs: ), I ), I Disable: 51N, 46IT, 46DT, 46BC Map Pickup LED: 60CTS - Self Reset Apply 3Phase balanced current to the relay, reduce the current in any one or two phases to a level below 60CTS I setting.

  • Page 65: 7Pg2114 & 7Pg2116

    7PG2113/4/5/6 Commissioning & Maintenance 3.3.2 7PG2114 & 7PG2116 Figure 3.3-2 Current Transformer Supervision 7PG2114/6 Voltage Inputs: ), V ), V Current Inputs: ), I ), I Disable: 51N, 46IT, 46DT, 46BC Map Pickup LED: 60CTS - Self Reset The presence of NPS current without NPS voltage is used to indicate a current transformer failure.

  • Page 66: Broken Conductor (46Bc)

    7PG2113/4/5/6 Commissioning & Maintenance 3.3.2.1 Element Blocking The CT Supervision function can be blocked by Binary Input Inhibit. This functionality should be checked. Element BI Inhibits 60CTS Table 3.3-3 60CTS Element Blocking 3.4 Broken Conductor (46BC) Figure 3.4-1 Broken Conductor...

  • Page 67: Table 3.4-1 46Bc Test Currents

    7PG2113/4/5/6 Commissioning & Maintenance Inject 1A of balanced current. Gradually increase imbalance current, operating level should be as follows: 46BC Setting 1P unbalance current (% of 3P current) 100% 129% 161% 200% Table 3.4-1 46BC Test Currents 46BC Setting 3P balanced current (A)

  • Page 68: Trip/Close Circuit Supervision (74T/Ccs)

    7PG2113/4/5/6 Commissioning & Maintenance 3.5 Trip/Close Circuit Supervision (74T/CCS) Figure 3.5-1 Trip Circuit Supervision Voltage Inputs: Current Inputs: Disable: Map Pickup LED: 74TCS-n - Self Reset The T/CCS-n Delay can be initiated by applying an inversion to the relevant status input and measured by monitoring of the alarm output.

  • Page 69: Magnetising Inrush Detector (81Hbl)

    7PG2113/4/5/6 Commissioning & Maintenance 3.6 Magnetising Inrush Detector (81HBL) Figure 3.6-1 Magnetising Inrush Detector Voltage Inputs: Current Inputs: ), I ), I Disable: Map Pickup LED: Logical operation of the harmonic blocking can be tested by current injection at 100Hz to cause operation of the blocking signals.

  • Page 70: Section 4: Control & Logic Functions

    7PG2113/4/5/6 Commissioning & Maintenance Section 4: Control & Logic Functions 4.1 Autoreclose (79) Autoreclose sequences can be specified differently for Phase, Earth, Externally Initiated and SEF faults. Sequences should be simulated for each applicable different fault type with the actual relay settings required for service installed in the relay.

  • Page 71: Section 5: Testing And Maintenance

    Numeric module failure will be indicated by the ‘Protection Healthy’ LED being off or flashing. A message may also be displayed on the LCD. In the event of failure Siemens Protection Devices Ltd. (or one of its agents) should be contacted The relay should be returned as a complete unit.

  • Page 72: Table 5.3-1 Troubleshooting Guide

    Table 5.3-1 Troubleshooting Guide If the above checklist does not help in correcting the problem please contact the local Siemens office or contact PTD 24hr Customer Support, Tel: +49 180 524 7000, Fax: +49 180 524 2471, e-mail: support.energy@siemens.com.

  • Page 73: Section 6: Pilot Supervision Equipment

    7PG2113/4/5/6 Commissioning & Maintenance Pilot Supervision Equipment Section 6: Introduction Prior to 1988 pilot supervision was only available in the Vedette drawout case and this equipment was manufactured suitable for 15kV Insulated pilot circuits. Thus it can be applied to both 5kV and 15kV schemes.

  • Page 74: Secondary Wiring Insulation Resistance Tests

    7PG2113/4/5/6 Commissioning & Maintenance 6.3.2 Secondary wiring insulation resistance tests Check the insulation resistance of the secondary wiring as described in the appropriate Operating Recommendations 6.3.3 Pilot tests Before doing these tests, ensure that the pilot supervision relay and the transformer-rectifier supervision supply until are disconnected from the pilots.

  • Page 75: Test Of Pilot Supervision Supply Failure Relay (Where Fitted)

    7PG2113/4/5/6 Commissioning & Maintenance Connect a temporary short circuit across the CT’s at both ends of the feeder. Disconnect the red phase guard relay from the CT secondary at one end of the feeder. Using the test circuit shown in Fig. 7, check the pick-upvalue of the relay at the chosen setting.

  • Page 76: 6.3.10 Stability Tests

    7PG2113/4/5/6 Commissioning & Maintenance Short circuit the pilots and check that the pilot supervision receive relay and its follower relay reset and that a correct pilot failure alarm is given. Open circuit the pilots and check that the pilot supervision receive relay and its follower relay reset and that a correct pilot failure alarm is given.
  • Page 77 7PG2113/4/5/6 Commissioning & Maintenance Isloting Transformer Supervision Receive End S1 S2 15kV Scheme only 15kV Vedette or 5kV Epsilon Case 7PG2113/5 Solkor Rf R/Rf Mode A13/15 Pilots to 0.25 A17/19 Send A21/23 A26/28 Receive Equipment AC Schematic Diagram Figure 6.3-3 Pilot Supervision Receive Equipment Current transformer connections are typical only.

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