Switch Gear Check List

8/20/2019 Switch Gear Check List

1/14

ELECTRICAL

TESTING SCHEDULE

Plant Area : 11 KV Switchgear Sheet - 1/1- -

LIST OF CONTENTS

1. Plant Details

2. Testing Objectives

3. Testing Proposals

4. Services Required

5. Saet!

". #$ergenc! Procedures

%. State o Plant

&. Test 'et(od

). Progra$$e

1*. Results

11. Reinstate$ent and Preservation

12. Staing Responsibilities and +o$$unications

13. ,ppendices

14. P-+ / #lectrical

15. Test Report

1". O0 O,D -nspection Report


2/14

ELECTRICAL

TESTING SCHEDULE

Plant Area : 11 KV Switchgear Sheet - !/1- -

1.* P,0T D#T,-S

1.1 11 Sgr. oard is inside 'ain Plant pre$ises near 'ainate. T(e oard consists o & panels6 (ic( include 2inco$ers6 one bus7coupler and 5 outgoing eeders. T(e oardis ed b! 2 nos o "."811 interconnecting transor$ers9",8: o 35** , over(ead lines to PTS Sitc(gear6 (ic(in turn eeds ';< and P+7+(epad =uel =acilities. T(ere isa all $ounted +ontrol Panel or t(e oard. T(e controlsuppl! is 22* D+ (ic( is ed b! 22* D+D located in++.

1.2 ,rea covered under t(is Testing Sc(edule co$plete 11'isc. sitc(gear including ocal control Panel6 2 nos6 35**, transor$ers6 "." cabling ro$ "." sgr. Totransor$ers6 >T cable ro$ t(e transor$ers to 11 oardand all associated control cabling.

2.* O?#+T-#S

2.1 To ensure t(at 11 'isc. Sitc(gear6 local +ontrol Panel635** , Transor$ers and associated +ables are correctl!asse$bled6 erected and tested in accordance it( good#ngineering practices.

2.2 To ensure t(e equip$ents and all its co$ponents conor$ tot(e speciications agreed in t(e ter$s and conditions o t(econtract.

2.3 To prove t(at t(e equip$ents are capable o sustainedoperation under service conditions.

2.4 To provide a record or uture reerence.


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ELECTRICAL

TESTING SCHEDULE

Plant Area : 11 KV Switchgear Sheet - "/1- -

2.5 To prove all controls6 interloc@s and saeguards.

2." To ensure t(e equip$ent is c(arged and is read! or energiAing t(e outgoing eeders as required.

3.* PROPOS,S

3.1 Testing ill be carried out or all t(e individual 11 circuitbrea@ers contained in 11 'isc. Sitc(gear6 as per t(eir

S+ and test procedures.

3.2 ,ll rela!s and protection circuits ill be tested according tot(eir S+ and test procedures. arious interloc@s ill also beproved.

3.3 ,ll t(e transor$er >T8T side cables ill be tested as per itsS+ and test procedure.

3.4 T(e 11 'isc. Sitc(gear ill be c(arged ro$ "."Sitc(gear t(roug( t(e 35**, transor$ers 9",8:.

3.5 -t ill be t(e dut! o t(e testing tea$ eader to ensure t(at(en t(e s!ste$ is operating under load conditions6 t(at allequip$ents are eBternall! inspected or an! sign o stress or abnor$alit! and a cop! o t(e results o t(eir inspection isattac(ed as an appendiB to t(is sc(edule.

4.* S#R-+#S

4.1 22* D+ suppl! ro$ D+D or protection and control circuit.

4.2 415 37p( ,+ supplies


4/14

ELECTRICAL

TESTING SCHEDULE

Plant Area : 11 KV Switchgear Sheet - /1- -

4.3 P(ase sequence indicator

4.4 ,ll test sets and equip$ents required or testing o individualequip$ents as detailed in respective S+Cs and TestProcedures.

4.5 +o$$unication acilit! ro$ 11 Sgr. Roo$ to ++.

5.* S,=#T

5.1 T(e Tea$ eader ill inor$ eac( $e$ber o (is tea$ as tot(e eBact nature and eBtent o (is contribution andresponsibilities toards t(e tests carried out.

5.2 Onl! no$inated person ill ta@e part in t(e tests. ,ll ot(ersill re$ain clear o t(e area.

5.3 ,ll persons $ust acquaint t(e$selves it( t(e use andlocation o ire eBtinguis(ers and =irst aid posts.

5.4 ,dequate lig(ting acilities ill be provided at all ti$es.

5.5 #ac( test ill be carried out under t(e control o t(e test tea$leader.

5." , strict and sae $et(od o appl!ing test leads s(all bepracticed. are ires s(all not be inserted into soc@ets.

5.% , record o an! alteration $ade during t(e test suc( a s(ortsor disconnections6 s(all be $ade and anneBed to relevant testprocedure.


5/14

ELECTRICAL

TESTING SCHEDULE

Plant Area : 11 KV Switchgear Sheet - #/1- -

5.& #ac( test ould be careull! planned so t(at t(ere is no

danger o $ec(anical or electrical da$age to t(e equip$entunder test.

5.) T(ere ill be sae and eas! access to all equip$ents under test. ,nd test area ill be @ept clean and clear o allobstructions.

5.1* tests are being carried out t(e area ill be cordonedo. Danger8arning notices s(all be iBed at relevant points to

ensure saet!.

5.11 =eeder +Cs ro$ "." Sgr. S(all be @ept in it(dranposition.

5.12 T(e operating personnel $ust be @ept inor$ed o t(eprogra$$e o testing

".* #'#R#0+ PRO+#D;R#S

".1 =irst and boB and S(oc@ treat$ent c(art ill be $adeavailable.

".2 #$ergenc! telep(one nu$bers or >ospital and =ire servicess(all be pro$inentl! displa!ed.

".3 , telep(one ill be available nearb!.

".4 - an abnor$alit! is observed during c(arging t(e "."eeder + s(ould be sitc(ed o i$$ediatel!.


6/14

ELECTRICAL

TESTING SCHEDULE

Plant Area : 11 KV Switchgear Sheet - $/1- -

%.* ST,T# O= P,0T O= #0#R-S,T-O0

%.1 "." cable erection ro$ "." panels to Transor$ers",86 Transor$er ",8 to 11 -nco$er panels co$plete inall respects. ,ll control cabling interlin@ing "." transor$er eeders6 11 inco$ers and 11 local control panelco$plete.

%.2 T(e Transor$ers ",8 are read! or energisation ro$ "."

sitc(gear.

%.3 ,ll circuit brea@ers contained in 11 Sitc(gear in it(dranposition.

%.4 +learance ro$ all agencies or carr!ing out tests on 11Sitc(gear6 Transor$ers ",8 and inco$ing8outgoing cableso Transor$ers ",8 obtained.

%.5 "." us is -#

%." Saet! +learance 0otiication issued and eective or "."sitc(gear eeder panels6 11 'isc. sgr.6 11 localcontrol panel6 inco$ing and outgoing cables o Transor$ers",8.

%.% T(e associated D,S8annunciation sc(e$e is co$plete6 tested

and in service.

%.& T(e control supplies are available.


7/14

ELECTRICAL

TESTING SCHEDULE

Plant Area : 11 KV Switchgear Sheet - %/1- -

&.* T#ST '#T>OD

&.1 +o$plete t(e S+Cs or t(e Sitc(board area in (ic( t(e11 sitc(gear is located. +o$plete S+ or Transor$ers",8.

&.2 +(ec@ and test all t(e panels o 11 'isc. sitc(gear andassociated equip$ents as per t(eir S+. #nter all t(e abovedetails in P-+.

&.3 +(ec@ ant test t(e 11 us oard and t(e -nco$er cablesro$ Transor$ers ",8 and "." Panels as per t(eir S+and enter details in P-+.

&.4 +(ec@ and test suppl! cables or t(e D+ control bus and t(e ,+ (eater supplies as per t(eir S+ and enter t(e details inP-+.

PR#7#0#R-S-0 +>#+S E T#STS

&.5 #nsure all covers are provided and no conducting part iseart(ed.

&." #nsure all =eeder rea@ers o 11 'isc. Sitc(gear are init(dran position.

&.% +(ec@ and record t(e inal -R o suppl! cables or t(e D+control us and t(e ,+ (eater suppliesF

&.& #nergise bot( t(e suppl! cables or D+ control bus and ,+(eater supplies.


8/14

ELECTRICAL

TESTING SCHEDULE

Plant Area : 11 KV Switchgear Sheet - &/1- -

&.) +(ec@ t(e various interloc@s and auto sc(e$es a$ong 2

inco$ers and us7coupler o 11 'isc. sgr. ! si$ulatingrequired conditions.

&.1* #nsure co$pletion o Pre7energising +(ec@s or c(argingTransor$ers ",8.

&.11 Put t(e eeder brea@er or Transor$er ", in "."sitc(gear in T#ST position

&.12 Put control uses o ", eeder rea@er in position and sitc(O0 control suppl!.

&.13 Select local8re$ote sitc( o -nco$er rea@er to O+, andclose E trip t(e "." eeder brea@er once to c(ec@ itsoperation.

&.14 Select R#'OT# and +lose E trip t(e brea@er in test position

ro$ #+ to c(ec@ re$ote operation.

&.15


9/14

ELECTRICAL

TESTING SCHEDULE

Plant Area : 11 KV Switchgear Sheet - '/1- -

&.1) Re$ove all test connections an c(ec@ t(at an! disconnections

$ade or t(e purpose o testings (ave been correctl!reinstated in "." Panel6 Transor$er ", and 11 'isc.Sgr.

&.2* +(ec@ Danger8arning notices are iBed at relevant points toensure saet!.

&.21 #nsure eective co$$unication beteen +8R and sitc(gear roo$ is establis(ed.

&.22 #nsure T in service position it( all its uses put on6 or section /, o t(e 11 sitc(gear.

&.23 +(ec@ all rela! settings or "." eeder panel are as per t(eir protection sc(edule.

#0#R-S-0 PRO+#D;R#

&.24 Ta@e t(e inal -R o t(e "." cable and Transor$er pri$ar!ro$ "." panel. Ta@e inal -R o Transor$er secondar! and11 cable ro$ 11 inco$er panel. 9Disconnect neutraleart(ing during t(is test:.

&.25 0or$alise Transor$er neutral eart( connection ater -R test.

&.2" Ta@e inal -R value o 11 us6 bot( section , and 6 andnor$aliAe an! connections or uses disturbed in T +ircuit.

&.2% Reset $aBi$u$ indicator o


10/14

ELECTRICAL

TESTING SCHEDULE

Plant Area : 11 KV Switchgear Sheet - 1(/1- -

&.2& +(ec@ t(at required valves to radiators and conservator areOP#0.

&.2) +(ec@ and record oil level in transor$er. #nsure oil in


11/14

ELECTRICAL

TESTING SCHEDULE


&.3& Observe t(e board or an! abnor$alit!.

&.3) +(ec@ t(e p(ase sequence at secondar! o T and record.9Sec7,:

oltage $easure$entP(ase

sequenceRe$ar@s

P(aseTer$inal

noolts

R /

/

/ R

&.4* +(ec@ t(e p(ase sequence at secondar! o T and record.

9Sec7:

oltage $easure$entP(ase

sequenceRe$ar@s

P(ase Ter$. no olts

R /

/

/ R

&.41 #nsure p(ase sequence or bot( bus sections are sa$e.


12/14

ELECTRICAL

TESTING SCHEDULE

Plant Area : 11 KV Switchgear Sheet - 1!/1- -

&.42 P(ase out bot( t(e secondar! voltages.

&.43 Trip t(e us coupler and rac@ out t(e rea@er.

&.44 Repeat &.11 to &.25 and t(en &.2% to &.3" or "." eeder brea@er or transor$er "6 section / inco$er o 11 oardand Transor$er ".

&.45


13/14

ELECTRICAL

TESTING SCHEDULE

Plant Area : 11 KV Switchgear Sheet - 1"/1- -

).* PROR,''#

#Bact date o co$$issioning ill be decided b! Station+o$$issioning Panel.

1*.* R#S;TS

,ll co$pleted S+Cs and test procedures used s(all be illedunder t(eir unique nu$bers.

11.* R#-0ST,T#'#0T

11.1 ,ter c(arging o 11 sitc(gear6 t(e oard is read! or ta@ing load.

11.2 - t(ere is a long dela! in ta@ing load6 t(e 11 Sic(gear $a! be de7energised and all space (eaters o sitc(gear illbe @ept on. ,lso inco$er ill be @ept in it(dran position.

11.3


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ELECTRICAL

TESTING SCHEDULE


12.* ST,==-0

T(e co$$issioning ill be done under t(e supervision o Sri G

>e ill be assisted b!F

0TP+ F 1.

2.

3.

+ontractor F 1.

2.

3.

Documents

Switch Gear Check List