gt&busduct test sch

8/20/2019 Gt&Busduct Test Sch

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STATION: NTPCSIMHADRI

BHEL REF NO : PS-DC-186-500-111 NTPC REF NO: SIM/1/TS/ 1 / 111

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PLANT AREA : ELECTRICAL SYSTEM

TESTING SCHEDULE : GENERATOR TRANSFORMER & BUSDUCT

LIST OF CONTENTS

1. PLANT DETAILS

2. TESTING OBECTI!ES

". TESTING PROPOSALS

#. SER!ICES RE$UIRED

5. SAFETY PRECAUTIONS

6. EMERGENCY PROCEDURES

%. STATE OF THE PLANT

8. COMMISSIONING PROCEDURE

. COMPLETION CRITERIA

10. APPENDICES


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1. PLANT DETAILS

T'( G()(*+,* ,*+)*(* ,( ,'( 3()(*+,4) ,3( 21 7! , ,'(

)4)+ 3*4 9,( ,+3( #00 7!. I, 4 ))(,( ) ,'( L.!. 4( ,

,'( 3()(*+,* ,, ,(*4)+ ,'*3' 21 7! 4+,( '+( ),4) ,9(

; ,. T'( ,*+)*(* H.!. ,(*4)+ +*( ))(,( , ,'( 3()(*+,*

;+9 4) ,'(


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OTHER TRANSFORMER PARAMETERS:

MA7E : BHEL?BHOPAL

I)+,4) L(( H!: SI 1180 LI 1#25-AC "8 CHOPPED LI-15%0

L! : LI 125 AC 50

(43', =73>

C*( +) : 2"515

B'4)3 : 2%25

M+*'+4)3 B & 4*4)3 : 820

C(* : 15600

C)(*+,* : 1#"600

U),+)4)3


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O4 +),4,9 =4,*(>

O4 4) ,*+)*(* ,+)?,**(, &

B'4)3 : """10

O4 4) (*?)(*+,* & P4(


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T+ "000 A

D4()4) :

LOCATION BUSDUCT ENCLOSURE

=THIC7NESS OUTER DIA.>

CONDUCTOR AL.

ALLOY BO

=THIC7NESS O/D>

MAIN RUN 8 1500 16 800 DELTA 8 1000 16 #26

TAP OFF 8 %80 11.8# 20".2

=65.2 L()3,'>

2. TESTING OBJECTIVE


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TO TEST THE STABILITY?CHARACTERISTICS OF TRANSFORMER &

BUSDUCT.


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3.TESTING PROPOSALS:

T'( ; ,


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4.SERVICES REQUIRED

5 7! INSULATION TESTER?

" PHASE #15 AC 50 H S9 * *((+), MCC?

HT POT AC/DC SOURCE

MEASUREMENT 7IT =MULTI METER? TONG TESTER ETC>


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5.0 SAFETY PRECAUTIONS

5.1 T'( ()34)((* 4)'+*3( ,'( ,(,4)3 ,(+


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6. EMERGENCY PROCEDURE

6.1 POER SUPPLY SHOULD BE ISOLATED * *( +) + 4(

6.2 S' ,*(+,(), '+*, & 4*, +4 ;


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. STATE OF T!E PLANT

%.1 B , (*(,4) (,( +) (4;( ))(,4) , ,'(


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". COMMISSIONING PROCEDURE:

PRE COMMISSIONING CHEC7S:

8.1 C'( +) ()*( ) ,(*+*9 (+*,'4)3 * (;*4 +)9


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8.8 C'( +) ()*( ,'(


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8.." C+**9 , ,+3( 4)(,4) ,(, * PT

8.10 C'( +) ,(, ,'(

2. INSULATION RESISTANCE MEASUREMENT

". INDING RESISTANCE MEASUREMENT

#. MAGNETIC CORE BALANCE TEST & MAGNITITATION CURRENT TEST

5. !ECTOR GROUP TEST

6. STABILITY TEST

%. OPEN & SHORT CIRCUIT TEST =IF POSSIBLE>

8.12 THE FOLLOING TESTS MUST BE CARRIED OUT FOR BUS DUCT

1. INSULATION RESISTANCE MEASUREMENT

2. BUSBAR RESISTANCE MEASUREMENT

". LEA7AGE CURRENT/HI POT TEST = 2√2 TIMES THE RATED

AC !OLTAGE IN CASE OF DC2 TIMES IN CASE OF AC>


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8.1" THE FOLLOING PROTECTIONS ARE NORMALLY INCLUDED FROM

LOCAL FOR POER TRANSFORMER PROTECTION.

PARAMETER ALARM TRIP

TRANSFORMER OIL TEMP 85 DEG C 0 DEG C

TRANSFORMER DG TEMP 5 DEG C 105 DEG C

FANS ON 60 DEG C OF DG TEMP

%5 DEG C OF DG TEMPPUMP ON

8.1# BUCHOLT@ TRIP/ALARM TO BE BROUGHT TO CONTROL ROOM &

CHEC7ED.

8.15 PRESSURE RELIEF !AL!E TRIP CONTACT OF TRANSFORMER TO

BE HOO7ED UP AND CHEC7ED .


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#. COMPLETION CRETERIA

C'( 4, +) ,(, *(*( * 3()(*+,* ,*+)*(* +) ; , (,(.

T(, *(* * 4)3 9,( 3()(*+,* ,*+)*(* +*( ),(.

TRANSFORMER & BUSDUCT ARE READY FOR CHARGING.


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10. APPENDICES:

DRAINGS: SLD OF ELECTRICAL SYSTEM AU POER DISTRIBUTION

TRANSFORMER YARD LAY OUT =PE-DG-186-100-0501/RE! 05>

BUSDUCT CROSS SECTION =D*3. N.#5#1515505/HANSI>

LOG SHEETS : I> IR !ALUES?R !ALUES OF GENERATOR

TRANSFORMER?UNIT TRANSFORMER

II> TEST REPORT OF GENERATOR BUS DUCT

III> UNDER!OLTAGE?O!ERCURRENT& EARTHFAULT

SETTINGS 7EPT 2 DIFF IF APPLICABLE


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I> I)+,4) R(4,+)( +( 3()(*+,* & U)4, ,*+)*(*? ; ,.

M(33(* (,+4 :

R+,4)3 57! S.NO. M+(

C+4;*+,4) D( )

SN T(*4)+

G()(*+,* T*+)*(* U)4, ,*+)*(*

B ,H!SIDE

L! SIDE H! SIDE L!SIDE

1. R E

2. Y E

". B E

#. R Y ----- -----

5. Y B ------ -----

6. B R ----- -----

II> 4)4)3=B;+*> *(4,+)( +( 3()(*+,*? U)4, ,*+)*(*? B ,.

7(4)K D;( ;*43(/M4* O' (,(* (,+4 :

S.NO. M+(

C+4;*+,4) D( )

SN T(*4)+

G()(*+,*

T*+)*(* U)4, ,*+)*(*

B , =PH

PH>H!

SIDE

L!

SIDE

H!

SIDE

L!

SIDE

1. R Y

2. Y B

". B R

gt&busduct test sch

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