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Document Number: ECP 11-0511h
Version: 1.0
Date: 09/07/2013
EFACEC FLUOFIX GCT TEST FORM
Substation Name
Substation Number
Voltage
Switchgear
Installed Mode Free-standing () Transformer-mounted ()
Switchboard Number Manufacturer Efacec
Serial Number Type Fluofix GCT
Protection CTs FPI CT Ratios in Use
Ratio in Use RSW1 RSW2
TLF
Rating Transformer Rating kVA
Preliminary Checks ()
Disconnect the umbilical cable from the RTU (if fitted)
Visual inspection satisfactory (no visible signs of damage etc)
Earthing satisfactory
SF6 gas pressure satisfactory
Functional/Interlock Checks ()
Open and close switches
Earth switches cannot be operated when service selected
Switch/circuit-breaker cannot be operated when earth selected
Open and close earth switches
Test access cannot be opened when switch/circuit-breaker in On and Off position
Test access can be opened when earth switch closed
Switch/circuit-breaker cannot be operated when test access open
Motorised actuator operation satisfactory using an RTU simulator (LPN only)
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Document Number: ECP 11-0511h
Version: 1.0
Date: 09/07/2013
Transformer Winding Insulation Resistance using Test Voltage from EOS 09-0001(transformer-mounted units only)
HV windings to earth (LV windings connected together and to earth) M
LV windings to earth (HV windings connected together and to earth) M
Switchgear Continuity Test
RSW1 RSW2 CB Terminals Under Test Continuity
TM* FS* TM* FS*
RSW1 to RSW2 RSW1 to RSW2 to CB
Closed Closed Open Closed L1 - L1 L1 - L1 - L1
Closed Closed Open Closed L2 - L2 L2 - L2 - L2
Closed Closed Open Closed L3 - L3 L3 - L3 - L3
Closed Open Closed L1 - L2 (RSW1)
Closed Open Closed L2 - L3 (RSW1)
* TM - transformer-mounted and FS - free-standing.
HV Insulation Tests using Test Voltage from EOS 09-0001
RSW1 RSW2 CB Terminal Voltage (kV)
Duration (min)
IR (M)
Under Test
Earthed
TM* FS* RSW1 RSW2 CB(FS* only)
Closed Closed Open Closed L1 L2, L3
Closed Closed Open Closed L2 L1, L3
Closed Closed Open Closed L3 L1, L2
Open Closed Open Closed L1, L2, L3
L1, L2, L3
L1, L2, L3
Closed Open Open Open L1, L2, L3
L1, L2, L3
* TM - transformer-mounted and FS - free-standing.
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Efacec Fluofix GCT Test Form Document Number: ECP 11-0511h
Version: 1.0
Date: 09/07/2013
FPI CTs Insulation Resistance using 1kV Test Voltage(test from terminal block RSW1 X3.1 in LV compartment at back)
Disconnect FPI/RTU umbilical cable (if fitted) ()
RSW1 RSW2 (if fitted)
Remove earth linkC90 from X3.1/110
() C90 from X3.1/110
()
L1, L2, L3X3.1/111, X3.1/112, X3.1/113 - Earth
M X3.1/111, X3.1/112, X3.1/113 - Earth
M
Reconnect earth link C90 to X3.1/110 () C90 to X3.1/110 ()
FPI CTs Loop Continuity(test from terminal block RSW2 X3.1 in LV compartment at back)
RSW1 RSW2 (if fitted)
L1X3.1/111 - X3.1/110
X3.1/111 - X3.1/110
L2X3.1/112 - X3.1/110
X3.1/112 - X3.1/110
L3X3.1/113 - X3.1/110
X3.1/113 - X3.1/110
Reconnect FPI/RTU (if fitted) ()
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Efacec Fluofix GCT Test Form Document Number: ECP 11-0511h
Version: 1.0
Date: 09/07/2013
© UK Power Networks 2013 All rights reserved 4 of 6
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Efacec Fluofix GCT Test Form Document Number: ECP 11-0511h
Version: 1.0
Date: 09/07/2013
Protection CTs Insulation Resistance using 1kV Test Voltage(test from terminal block X3 in LV compartment)
Disconnect earth link X3/13 (unscrew the yellow point) ()
CTs, AC trip coils and TLFs C90 to C70 (across X3/13) M
Reconnect earth link X3/13 (tighten yellow point) ()
Protection CTs Loop Continuity(test CT and trip coil from terminal block X9 in LV compartment)
Remove CT ratio shorting link and test link ()
100/5 Ratio 50/5 Ratio
L1 10 - C71 14 - C71
L2 11 - C71 15 - C71
L3 12 - C71 16 - C71
Replace CT ratio shorting link and test link ()
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Test LinkC71–C70
16–15–14–13–12–11–10100/5 50/5
X3/13C90–C70
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Efacec Fluofix GCT Test Form Document Number: ECP 11-0511h
Version: 1.0
Date: 09/07/2013
Primary Injection Test (free-standing units only)
Earth Fault Release Test
Remove TLFs and replace with shorting links ()
RSW1 RSW2 CB Conductors Under Test CT Ratios
Trip Range Trip Current
RSW1 CB
Closed Open Closed L1 L1 50/5 25 - 30A A
100/5 35 - 40A A
Closed Open Closed L2 L2 50/5 25 - 30A A
100/5 35 - 40A A
Closed Open Closed L3 L3 50/5 25 - 30A A
100/5 35 - 40A A
Overcurrent Release Test
Remove TLF shorting-links, connect shorting-link between L1, L2, L3 on CB ()
RSW1 RSW2 CB Conductors Under Test
Short Conductors
CT Ratios
Trip Range Trip Current
RSW1 CB
Closed Open Closed L1 – L2 L1, L2, L3 50/5 50A A
100/5 100A A
Closed Open Closed L2 - L3 L1, L2, L3 50/5 50A A
100/5 100A A
Secondary Injection Test (transformer-mounted units only)
Earth Fault Release Test
Remove TLFs and replace with shorting links ()
RSW1 RSW2 CB Test Connections CT Ratios
Trip Range Trip Current
Open Open Closed C31 - C70 50/5 5A A
100/5 5A A
Overcurrent Release Test
Remove shorting links ()
RSW1 RSW2 CB Test Connections CT Ratios
Trip Range Trip Current
Open Open Closed C11 - C31 50/5 2.5 - 3.0A A
100/5 1.5 - 2.0A A
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Efacec Fluofix GCT Test Form Document Number: ECP 11-0511h
Version: 1.0
Date: 09/07/2013
Open Open Closed C31 - C51 50/5 2.5 - 3.0A A
100/5 1.5 - 2.0A A
Note: If the circuit-breaker does not operate when the injected current is gradually applied then the maximum value of current should be applied instantaneously.
Emergency Trip (if fitted) ()
Check correct shunt trip coil voltage is correct
Check emergency trip button operates circuit-breaker
Final Checks ()
Check correct CT ratio selected
Check correct TLF rating selected and fitted
Check all links are replaced and secure
Ensure FPI CT shorting-link(s) are replaced if CTs are not used or not connected to FPI or RTU
Reconnect umbilical cable to RTU (if fitted)
Asset data form completed and submitted
Test Equipment
Purpose Make/Type Serial Number
Certification ()
All tests have been completed satisfactorily
Comments
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Efacec Fluofix GCT Test Form Document Number: ECP 11-0511h
Version: 1.0
Date: 09/07/2013
Commissioning Engineer
Signature Date
This test form should be left on-site in a plastic wallet and in a secure location.
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Efacec Fluofix GCT Test Form Document Number: ECP 11-0511h
Version: 1.0
Date: 09/07/2013
Appendix A – Schematic Diagrams
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Efacec Fluofix GCT Test Form Document Number: ECP 11-0511h
Version: 1.0
Date: 09/07/2013
© UK Power Networks 2013 All rights reserved 2