ecp 11-0511h efacec fluofix gct test...

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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 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



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.

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) ()

© UK Power Networks 2013 All rights reserved 3 of 6


Version: 1.0

Date: 09/07/2013



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 ()


Test LinkC71–C70

16–15–14–13–12–11–10100/5 50/5

X3/13C90–C70


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


100/5 35 - 40A 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


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


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


Open Open Closed C11 - C31 50/5 2.5 - 3.0A A

100/5 1.5 - 2.0A A



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



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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