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TENUGHAT TERMAL POWER STATION SCOPE OF WORK

1.0 Engineering Declaration Submission (Revision No.): R1

Overhaul Date (Proposed) : 16-07-10

.0 Outage period ! duration : 30 DAYS

"usti#ication o# outage duration ! time period : BOILER & LPT OH

3.0 $denti#ication o# E%uipments to be ta&en under Overhaul ! Scope o# 'or& #or

Overhaul.

$S O* E+,$P-ENS $DEN$*$ED O E /EN ,NDER OER2/,.

OER2/,$N3

4.1 O$ER5

ECONOMISER,

LTSH

PLATEN SHREHEATER

WATER WALLS, SCREEN TUBES.

DRUM

PENTHOUSE.

ALL WALLS MOUNTED SOOT BLOWERS, VALVES.

*/NS ! /P25

ID f! "A & B #$ %' '())*!+ %)!

.D. AN-A & B,

P.A.ANS-A, B & C,

SEAL AIR AN- 1, ,3,/, & 6SCANNER AIR AN- A & B

AIR PREHEATER - A & B

ESP ! D,6S5

ELECTROSTATIC PRECIPITATOR "

) +$ DUCT, S2(!'4 & %'*5'4 2$ ATES8 DAMPER./S2 2/ND$N3 S7SE-5

C)*!9' +'*!' A, B, C & D

4. ,R$NE5O';)*!+ (f LP T'

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C)*

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*) I!$'5!$ S'*2*!+ & C)*) F(*!$

>. I!$%2*(! (f ;!+'$ ! $%%('$.

?. R%)25! (f 2(*)$ $ %' %)!

'ater Aall

S(( ' '($*(!, $2(!'4 *' '($*(!, ! f))*!+ $)+ '($*(!

1 I!$%2*(! ! '%)25! $ %' '*'5!. S5%)*!+ (f T! %)$, $)*!+ 2;!!)$.*inal Super heaters

Unit - 1 / 2010-11 TENUGHAT THERMAL POWER STATION

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O';*!+, M*$)*+!5! 21 I!$%2*(! ! P;$ '%)25! (f DMW F(*!$

Reheater and Spacers

O';*!+, A$; '($*(!& M*$)*+!5!

1 I!$%2*(! ! ! F$5! >;'' '*'

2igh8pressure valves

P$$*!+ ! )9+$

O';)*!+, )%%*!+, '%)25! (f +)!$, $'*2*!+ ! $*!+ (f $f4 )$Soot loAers

N(GG) 5+, %$$*!+, )9+$

O';)*!+, !(GG) *!$%2*(! ! '%)25!, %%% ) ! +'

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. I5%))' '%*'8'%)25! $ '*'.

4. I!$%2*(! (f $)*!+ )5!$.

;. AF$5! (f '(f(*) . A)*+!5! (f f! ! 2(%)*!+ >*; 5(('

?. S'*2*!+ (f )

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/. A)*+!5! (f %*!8'29 $$5

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0.R%*' 8 '%)25! (f 2'**2) $)*!+ 2(5%(!!$ )*9 $2(' %)$, T " ))$ ))$.6. R%)25! (f )) 2 5!;()$ %29*!+ '(%8 +$9$.7. R5*!*!+ R&M >('9 f(' f

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/S2 2/ND$N3 S7SE-

ottom /sh 2opper:

1. I!$%2*(! ! '%*' 8 '%)25! (f B((5 A$; H(%%' 2$*!+.

. !2;*!+ !(GG) ! %*% '%)25! $ %' '*'5!.

3. Rf'2('4 2(()*!+ %*% ;' *!$%2*(!, '%*'8 '%)25!.

/. S'*2*!+ (f B((5 $; ;(%%' +$.

6lin&er grinder 1B B 4 ! ;

"! B'*!+$ ! +'*!*!+ '()) I!$%2*(!, '%*' 8 '%)25! *f '*'.

. B(4 & 2; - R%)25! (f 5+ %('*(! (f 2;.3. Rf'2('4 2$*!+ $ %' '*'5!.

/S2 2/ND$N3 S7SE-5 6O--ON

1. S)+ )), CST, D'('.

C)!*!+ (f BP, MOT C(()'$, CEP & BP S'*!'$. Che$%ing ' (u))r* +a*ri in(i-e $n-en(er vi(uall. & "# 0PT $he$%ing n ran-+

1a(i(!

Che$%ing ' )i)ing )ull an- $he$%ing ' )i)e hanger( & (u))r*(!


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Thi$%ne(( (urve. ' *he $ri*i$al )i)e( li%e 1alan$ing lea% '', -rain/-ri) line( e*$! 0PT

$he$%ing n ran-+ 1a(i(!

Che$%ing ' lan- Lea% '' C/3!

3 /,F$$/R$ES

/. 6EP 9 / and

1. S2*(! $'*!' 2)!*!+

. T;'$

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;. D'(' & ST 2)!*!+

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3. B(*!+ % ! ) '*).

/. S;*f*!+ (f 5((' ( $*, )*+!5! ! 2(%) '*).

. C(%)*!+ & 2)'!2 f(' '*).

-OORS (entative 8 nos)

2 SAitch gear maintenance (HT SW. R

a. -/$NEN/N6E O* RE/ERS5

1. C)!*!+ (f *2;$, *)*'4 $>*2;$ ! 2(!'() >*'

'5*!*(!$. #R%*'8 '%)2 *f '*'

1. C;29*!+ (f ;);*!$$ (f 2!') %() )' ! (;' (%'*!+ 52;!*$5. #R%*'8

'%)2 *f '*'.13. C;29*!+ (f (*) )) *! )) %()$ ! '%)28 (% % ( !('5) )) *f '*'.

1/. C;29*!+ (f (*) )9+$ *! %()$ ! '2*f*2*(! (f ; $5 $ f())(>$:

1. T*+;!$$ (f %() $$5$;'$ (f ; %() $$5! ( %'5*$$**))

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b. -/$NEN/N6E O* 6,$6/S /ND /66ESSOR$ES5

1. C)!*!+ (f *2; #AAS *!

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/. T MCC " A, B, C, D

. U!* S'. S>+' " A, B

6. I!'' $>*2; *2; '

. D2 )2'(5+!*2 +' " SLB, SLC, SLD

11. A$; $)''4 MCC " A, C, D

1. ) (*) MCC " A, B

13. A$; >' MCC - A B

1/. S(( B)(>' MCC

1. V!*)*(! MCC

/ER7 /NS /ND 62/R3ERS

/. 0 ,PS /ER7 /N

1. D*$2;'+*!+ ! 2%2*4 $

. M*!!!2 (f

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E. RE/7 ES$N3 /ND PROE6$ON 62E6$N3 O* /R$O,S -66s

1. ESP MCC - A&B

. T'

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1. A*' *!+ ! 2)!*!+ f(' )) %!)$, 5()$. C;29*!+ (f %(>' $%%)*$ ! ;*'

'5*!)$ *+;!$$.

. C)!*!+ (f )) 2'$ >*; ' $!$(' 2'$ )< ! '$(' ;5 *!

'$%2* )(2*(!.

/. A)) 2'**2) %(>' $%%)4 2*2;$, $()!(*$, %(>' 24)*!'$, * '($, )' 24)*!'$, $()!(*$, $*!+ )< ! !('5)*G*(! f'

52;!*2) 2)'!2.

3. IA )9+ 2;29*!+ & !*!+ )) )*2;$.

. C)**2;$, ;*' %%*!+ %(*!$, %(29*!+ ! %'+*!+.

C*2;$ & '2*f*2*(!8 '%)25! (ff2* $>*2;$.

1. C)!*!+ (f A)) )(2) JB$, %'(%')4 $), %)++ *$ (%!*!+, R%)25! (f Df2*

JB$, %'(%' +)!*!+ (f 2

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1. S) *' ( B(>) DP & B(>) DP *5%)$ )*!$ %'+*!+8%(9*!+ )(!+ >*; 2)**2; *! )< ! % ;5 *!( $'*2.

. C;29*!+ (f )) 5*)) 'F2 + %(>' 24)*!'$, $()!(* )$. Df2*$ 2('$

$'*2*!+ )(2), )< ! !('5)*G*(!. O%'*(! 2;29*!+ >*; '2(55*$$*(!*!+ +'(%.

6. M*)) ' 2;'

!2$$'4 ! %*!*!+.

7. M*)) () T8C 2*; O & E.

8.

M*)) 5((' ' 24)*!' ! %($**(!'$, '2*f*2*(! f(' f2* (!$ >*; !>

$)$.

/. A)) SADC 2('$ $'*2*!+ ! %*!*!+.

. C)*('9.

. S'*2*!+ ! )9+ (f 2;29*!+ ))

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6. I$()*(! (f ID8D8PA f! ' $%%)*$ %!)$.

. R%)25! (f )4 )5%$ *! *$%)4 !*.

3. C;29*!+ (f )) )2'( 2(!!2*(!$ ! ';$ %(*!$./. C;29*!+ (f E)2'($ $$) '*!$ ! ! )$ 2(!**(!$ '5 )) ;4'$%

$$) *2;$, DP, )(> '!$5*'$.

7. C;29*!+ (f )) *' f*)' '+)('$ ! *$ %'. ++$.

. C)* & '(f(*) f('$2(!'4 *' f)(> *!$%2*(!.


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-$S6EENEO,S5

1. R5(), 2)* ! $%! 2)5% $$)4. A$ %' !2$$*4 f('

SADC, CAD, HAD, ID, D, PA A2('$.

. I$()*(!, *!$%2*(! ! 2)*

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DE/ER/OR

1. C)!*!+, S'*2*!+ ! 2;29*!+ (f '(' )) $>*2;$.

. D'(' )) '!$5*'$ 2)*)) )) 2(!'() ) MC-7.

S2/* SE/ SE/- /ND E/8O** SE/- S7SE-

1. C)* '!$5*'$, %'$$' $>*2;$ f(' %'(2*(!, %'$$'

$>*2;$, 5((' DE ! NDE 5%'' ++$.

. C;29*!+ ! $*!+ (f B'*!+ RTD$.

3. S'*2*!+ (f BP R2*'2)*(! ) %($**(!'$ ! E8P 2(!''$.

/. P'(2*(! ! *!')(29 2;29*!+ (f BP$ *! $ 5(.

. C;29*!+ ! $*!+ (f B'*!+ T5%'' M()$ #O5!* +'$.

6. C)**; )

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1. O';)*!+ ! 2)**2;$.

C)**2;, f2* %)+$.

3ENER/ "O

1. A)) '*' 2*; !> %)+ *! %)2 (f ('9 2.

. C;29*!+ (f CJJ & CCA %!) $%%)4 '5*!*(!$.

,PS

1. P!) 2)!*!+.

. A)) '5*!) *+;!$$ 2;29*!+.

4. C;29*!+ (f 2' $*!+$, 2(()*!+ f!$ ! 2)*

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. C;29*!+, 2)!*!+ & $)*!+ (f )) '*% ') JB$.

3. C;29*!+ (f '5*!) *+;!$$.

/. C;29*!+ 2' %(>' $%%)4 f$$.

. R; $4$5: '%)25! (f 2(!!*(!) )*5* $>*2;$ >*; )')$$ $>*2;$.

6. S'*2*!+ (f ; +)! $5 2('$.

7. 8- 6 VDC $%%)4 (f ATRS #HI-REL: %'(*$*(! (f f$ $>*2; !* *! %)2 (f MCCB.

3:D/S /RE/

1. M) 5%'' ;'5(2(%) JB$ 2)!*!+, *2;$ 2)* !+$! 2'+ *+;!$$, 5(('

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. A)*+!5! (f +' *; %))4.

10. L4 ( (f !> f(!*(!.

11. C**) >('9 f(' !> f(!*(!.

1. '(*!+ (f !> 5((' ;*) '%)2*!+ *! RH '' >;' f'! ('

;*!+ $*+!$ ' >*!$$.

*/N ! /P2

1 B(*)' A*' P' ;'$ S5 S(( B)(>' C(!$5%*(! (f

C($)4 S5

C(55*$$*(!*!+ (f

A2($*2 S(( B)(>'

B(*)' A*' P';' R%)25! C!'

$2*(!

P'$! C!'

$2*(! ;$

'.

I!$%2*(! ! '%)25! (f $ ! $)*

*f '*'.

A*' *!9 ) 2;(29*!+ &

5+.

I!$%2*(! ! 2)!*!+ ! '%)25! *f

'*'

ESP %*% )*! 2)!*!+ &

5+

I!$%2*(! ! 2)!*!+ ! '%)25! *f

'*'


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. H' )$

#ESP )*!$,

W & 25

$;',

$$5*!+ ; !(GG)$ ! *'

>$;' !(GG)$ 2)!*!+ & '%)25! *f

'*'.

I!$%2*(! (f %*% & '%)25! *f '*'.

/. S'*2*!+ (f

52;!*2)

;$'

S) >' )*! 5+ &

2;(29*!+ &

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8- 6 VDC

SUPPLY O

ATRS#HI-

REL

IMPROVISATION O

BATTERY CHARIN -

ISOLATION SYSTEM

PROVISION O USE

SWITCH UNIT IN PLACE

O MCCB

TRIPPIN COMMITTEE

RECOMMENDATIONS

SL.NO.

SUB -AREA

E@ISTINSCHEME

REASON ORMODIICATION

SCHEME TO BEIMPLEMENTED

REMAR?S

1 SEAL OIL

&

STATOR

WATER

SYSTEM

COMMON

POWER SUPPLY

OR ALL

CRITICAL & AS

WELL AS NON

CRITICAL

INSTRUMENTA

TION

DIICULTY IN

MAINTENANCE,

REDUCED SAETY &

PROBABLE

ENERATION LOSS

SEREATION O

DIERENT POWER

SUPPLIES

THIS SHALL

ENHANCE

SAETY &

EASE

MAINTENANC

E

EHC &ATRS

AMS-1MODULES OR

SPEED & LOAD

SETTER 8

REERENCE

STATION HASSUERD ENERATION

LOSS & TRIP

COMMITTEE

RECOMMENDATION

REPLACEMENTWITH A-1

MODULES

ENHANCEDSTATION

ENERATION

3 EHC &

ATRS

NATURAL

COOLIN O

ANS

IMPROVISATION O

COOLIN

ARRANEMENT

PROVISION O

COOLIN ANS

THIS SHALL

ENHANCE

CARD

PERORMANCE

6!$ 8 D/S5

SL.

N

O.

MAIN

AREA

SUB - AREA BRIE DESCRIPTION O

?EY PROBLEM

CORRECTIVE ACTIONS

PLANNED

1

S+-I

DAS $4$5

DAS S4$5

P!)$

A225)*(! (f 2() $ *!

P!)$

C)!*!+ ! *' *!+ (f

DAS S4$5 %!)$

S+-I

A!!.$4$5

A!!. S4$5

P!)

A225)*(! (f 2() $ *!

P!)

C)!*!+ ! *' *!+ (f

A!!.S4$5 %!)

3

----D(-----

C(!!$'

!

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. AREA AREA SCHEME N IMPLEMENTED

1 S+-I

DAS

U3

D

A2*$*

*(!

S4$5.

O'*!'4

T;'5(>))$ f('

RH & SH f)

+$ 5%5$'5!

' *)

!+$! 2'*))

ENGG DEC 0704.doc

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