97273716-20mw-Operation-Manual.doc

8/17/2019 97273716-20mw-Operation-Manual.doc

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NAVA BHARAT FERRO ALLOYS LTD

POWER DIVISIONDHARMAVARAM

STANDARD OPERATING PROCEDURES

FOR 20 MW STEAM TURBINE

MODEL: C9-R16-ER

PREPARED BY

.

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Standard Operating Procedure

Steam turbine is a machine, which converts the heat energ avai!ab!e "rom Boi!er

main steam into mechanica! energ in an economica! wa. #urbine is associate$ with

Re$uction gearbo% an$ &enerator, to convert this mechanica! energ into e!ectrica!

energ.

'ne number (" )* M+, sing!e c!in$er, horionta!, im-u!se, mu!tistage, mu!ttiva!ve,

a%ia! "!ow, con$ensing, one contro!!e$ an$ one uncontro!!e$ e%tractions with

re$uction gear an$ $own e%haust t-e turbo generator su--!ie$ b SM /o 0t$.,

a-an is insta!!e$ in our -!ant.

The o!!o"ing are the #a!ient eature# o Tur$ine%

Machine is having E!ectro h$rau!ic governing sstem assiste$ with +''D +ARD

2 3(3 governor contro! sstem, one Emergenc sto- va!ve an$ 4 nos o" inbui!t contro!

va!ves with one mechanica! over s-ee$ tri--ing mechanism. #urbine is having two

numbers o" steam e%tractions, 1st steam uncontro!!e$ e%traction "or HP heater "or

"ee$ water heating, *

n$

steam contro!!e$ e%traction "or Deareator, "or $eareation an$heating -ur-ose an$ "or the sugar -!ant -ur-ose.

Princip!e o Operation%

#he steam with 56 7g8S9.cm -ressure an$ 313 Deg./ tem-eratures wi!! enter into

turbine through one ESV an$ 4 numbers &overning contro! va!ves. #he steam entere$

into the turbine e%-an$s over the moving an$ "i%e$ b!a$es o" turbine re!easing the

mechanica! energ an$ rotates the turbine rotor at 61:4 r-m. #he turbine is cou-!e$

with the generator rotor through re$uction gearbo% ;61:4813(( r-m< an$ rotates the

generator rotor to convert mechanica! energ into E!ectrica! energ.

Steam a"ter $oing it=s wor> in turbine, gets co!!ecte$ into /on$enser an$ "orms as

con$ensate b giving it=s !atent heat to /+ water "!owing in the tubes o" con$enser.

*


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mu!tistage, mu!ti va!ve, a%ia! "!ow, con$ensing, no!e governing, e%traction an$

geare$ t-e. #he turbine is -rovi$e$ with 16 stages o" b!a$es.

Steam "!ow to the HP -art is regu!ate$ b 4nos steam contro! va!ves constitute$ as a

sing!e assemb! as HP governor va!ve. Steam #urbine consists o" /asing, "i%e$

b!a$es, moving b!a$es, rotor ;on which moving b!a$es are "i%e$< bearings ;@ourna!

an$ thrustg8S9.cm gC main steam -ressure, 313

Deg./ MS tem-erature, 61:4 r-m, (.1 7g8S9.cm ;abs< e%haust steam -ressure an$

1*.61 #PH steam "!ow through it. #he two e%traction steam 9uantities are 14.114

#PH "or HP heater, .65 #PH "or Deareator, an$ 1*.(3 #PH "or 0P heater. An$

remaining :).) #PH gets co!!ecte$ in con$enser where it is con$ense$ b using

/ircu!ating water. #o su--! the coo!ing water "or the above con$ensation -rocess,

#+' numbers o" /+ -um-s each o" 6:(( /u.M8Hr ca-acities are insta!!e$ here.

#he circu!ating water gets heate$ b a--ro% : Deg./ in the con$enser $uring

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con$ensation -rocess. n or$er to coo! this water b 1( Deg./, two nos o" coo!ing

towers with in$uce$ $raught "ans are insta!!e$.

The o!!o"ing are the Protection# /Trip 'a!ue#0 o the Tur$ine%

1. Steam tem-erature at turbine in!et high high 34) Deg./

*. Steam tem-. at turbine in!et !ow !ow I 46($eg/, this -rotection comes in to

service on! when MS tem-erature reaches to 4:3 $eg / an$ then "a!!s to 46(.

). Steam -ressure at turbine in!et !ow !ow I 6( >g8s9.cm ;ma be b-asse$ initia!!

"or /o!$ an$ +arm start u-s i" re9uire$.<

4.Steam -ressure at turbine in!et high high 1()>g8s9.cm ;not incor-orate$ -ush button.

1). E%haust steam -ressure high high 1.) 7g8S9.cm ;abs<

14. E%haust steam #em-erature high high 13( $eg/

13. 0ube oi! reservoir !eve! ;M'#< !ow !ow I )3( mm.

16. Hot we!! !eve! !ow !ow I )((mm

1. Hot we!! high high 14(( mm

15. #urbine Rotor a%ia! shi"t high high J(.63, G(.63 mm.

1:. #urbine "ront sha"t vibration high high :( microns

*(. #urbine rear sha"t vibration high high :( microns

*1. Re$uction gear -inion "ront sha"t vibration high high 14( microns

**. Re$uction gear -inion rear sha"t vibration high high 14( microns

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*). Re$uction gear whee! "ront sha"t vibration high high 15( microns

*4. Re$uction gear whee! rear sha"t vibration high high 15( microns

*3. &enerator "ront sha"t vibration high high 16( microns

*6. &enerator rear sha"t vibration high high 16( microns

*. #urbine thrust bearing tem-erature high high ;inactive< 1*( Deg./

*5. #urbine thrust bearing tem-erature high high ;active< 1*( Deg./

*:. #urbine "ront sha"t bearing tem-erature high high 1*( $eg/

)(. #urbine rear sha"t bearing tem-erature high high 1*( $eg/

)1. Re$uction &ear -inion "ront bearing tem-erature high high 1*( $eg/

)*. Re$uction &ear -inion rear bearing tem-erature high high 1*( $eg/

)). Re$uction &ear whee! "ront bearing tem-erature high high 1*( $eg/

)4. Re$uction &ear whee! rear bearing tem-erature high high 1*( $eg/

)3. &enerator "ront bearing tem-erature high high 53 $eg/

)6. &enerator rear bearing tem-erature high high 53 $eg/

). HP heater !eve! high high *:(mm. ;Protection shou!$ be b-asse$ $uring

charging o" HP heater.< not incor-orate$.

II- Tur$ine !u$e oi! #(#te)%

#urbine !ube oi! sstem consists o" Main oi! tan> ;M'#


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sstem. #wo numbers o" va-or "ans ;one wor>ing an$ one stan$b< are -rovi$e$ to

e%tract oi! va-ors "rom M'# an$ vent them out to atmos-here.

+ONTROL OIL P,1P%

/ontro! oi! -um- ;/'P< su--!ies oi! to the governing sstem $uring initia! start an$

continuous o-eration o" turbine. /'P is rate$ to $e!iver 6( 0PM at a hea$ o" 16.(

7g8S9./m ;g< an$ is $riven b 413V, 3.37+, an$ *55(Gr-m motor. #wo numbers o"

/'Ps are insta!!e$, out o" two, one is wor>ing an$ another is stan$b. #he autoG

change over is incor-orate$ between /'PG1 an$ /'PG*.

Startup Se2uenceF

(1. Ensure the "o!!owing

/'P1* are rea$ "rom Mechanica!, E!ectrica! an$ nstrumentation si$es an$ '

0ine /!earance is -en$ing on /'PG 1*, governing an$ !ube oi! sstems.

Power su--! an$ contro! su--! are avai!ab!e.

Pressure switches an$ inter!oc>s are -ro-er! chec>e$ an$ incor-orate$.

Discharge va!ves are o-ene$.0eve! o" oi! in M'# is norma! /334))0-

Va!ves in oi! sstem su--! mains are -ro-er! !ine$ u-.

Ensure oi! va-or "an is rea$ to start ;at !east one the $ischarge -ressure o" -um- an$ motor current.

(4. 7ee- the stan$ b -um- in auto, in or$er to come in to service in auto as -er

inter!oc>.

(3. 'bserve the contro! oi! "i!ter $i""erentia! -ressure ;DP< ;not more than (.5


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Before changing the filter, open air vent & Equalizing valve and ensure that both the

filters are equalized with oil. fter change over, close the air vent.

Shutdo"n Se2uence%

As these -um-s are inten$e$ "or continuous su--! o" governing oi! to the turbine,

the are to be switche$ o"" on! when the turbine is not in service. Be"ore switching

o"" these -um-s, ensure that the stan$b -um- is in LMA= mo$e ;i" -um- is in

A#'C mo$e, it wi!! come in to service on inter!oc>g8S9.cm to #urbine,

Re$uction gear bo% an$ generator bearings an$ tri- oi! at 4.) 7g8S9.cm to the

governing sstem $uring turbine s-ee$ run u- an$ turning gear o-erations. t has

rate$ ca-acit o" 1(1: 0PM at 6.3 7g8S9./m an$ $riven b 413V, ** 7+ an$ 143G

r-m motor. At 463( r-m, M'P ta>es over the $ut o" A'PN A'P wi!! be switche$ o""

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in auto. #his -um- comes into service in A#' i" !ube oi! hea$er -ressure is !ess

than (.5J8G(.* 7g8S9./m an$ -um- is se!ecte$ in A#'.

n the event o" turbine tri- $ue to an reason, A'P comes into service into o-eration

b inter!oc> when oi! hea$er -ressure $ro-s to (.5J8G(.* 7g8S9./m to su--! !ube

oi! to a!! bearings "or it=s sa"e coasting $own an$ subse9uent #urning gear o-eration.

#his -um- a!so su--!ies suction to the ac>ing oi! -um-s. #he $ischarge o" A'P

-asses through the 0ube 'i! /oo!ers.

Start up Se2uence%

(1.Ensure the "o!!owing

A'P is rea$ "rom Mechanica!, E!ectrica! an$ nstrumentation si$es an$ ' 0ine

/!earance is -en$ing on A'P, governing an$ oi! sstems.Power su--! an$ contro! su--! are avai!ab!e.


Discharge va!ve is o-ene$.

0eve! o" oi! in M'# is norma!.


Ensure oi! va-or "an is in service ;at !east one the $ischarge -ressure o" -um- an$ motor current.

(4. 7ee- the -um- in auto, in or$er to come in to service in auto as -er the inter!oc>.

(3. 'bserve the !ube oi! "i!ter DP ;I than (.5


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NOTE:

Be"ore changing the "i!ter, o-en air vent E9ua!iing va!ve an$ ensure that both the

"i!ters are e9ua!ie$ with oi!. A"ter change over, c!ose the air vent.

Shutdo"n Se2uence%

As this -um- is inten$e$ "or initia! run u- o" #urbine, this wi!! be switche$ o"" in auto

when turbine s-ee$ is above 463( r-m ;:3O o" rate$ s-ee$


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E1ER&EN+Y OIL P,1P

#he E'P comes into service in the event o" an Emergenc. A D/ motor $rives this. t

has rate$ ca-acit o" *6(0PM against a 1.3 7g8S9.cm hea$ an$ is $riven

b *.* 7+, 13((Gr-m 11(V D/ motor. n the event o" tota! -ower

"ai!ure or i" A'P "ai!s to start on it=s inter!oc> $ue to an reason, E'P

comes into o-eration when !ube oi! hea$er -ressure $ro-s to

(.6*7g8S9.cm to su--! the !ube oi! to the #& bearings "or its sa"e

coasting $own. E'P su--!ies oi! on! to the bearings. #he $ischarge o"

this -um- wi!! not go through oi! coo!ers.

Startup #e2uence%

(1.Ensure the "o!!owing.

E'P is rea$ "rom Mechanica!, E!ectrica! an$ nstrumentation si$es an$ ' 0ine

/!earance is -en$ing on E'P, governing an$ oi! sstems.

D/ Power su--! an$ contro! su--! are avai!ab!e.


Discharge va!ve is o-ene$.0eve! o" oi! in M'# is norma!


*. +hen the above are satis"ie$, the D/ E'P wi!! start b inter !oc>, i" !ube oi!

hea$er -ressure $ro-s to (.6* 7g8S9./m

). " the inter!oc> $oes not wor>, the -um- can be starte$ b -ressing the start -ush

button on #urbine governor -ane! ;#&P


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Inter !oc5# on EOP%

Auto Start% 0ube oi! hea$er -ressure !ow !ow ;PS00 3(4G1< an$ E'P auto se!ecte$

on #&P then E'P come into service in A#'.

Auto Stop% Auto sto- isn=t incor-orate$.

Manua! start an$ manua! sto- can be $one at an time "rom #&P.

1)


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T,RNIN& &EAR

Be"ore starting o" the turbine an$ as we!! as a"ter tri-, turbine an$ generator sha"ts

are to be rotate$ at certain s-ee$ to avoi$ $e"!ection o" rotor $ue to se!"

weight in high tem-erature atmos-here. #urning &ear is incor-orate$ in

the sstem to "aci!itate this o-eration. n our case, turbine rotates at 4(

r-m in turning gear o-eration. 11 >+, 413V, 143(Gr-m motor, $rives the

turning &ear.

Inter!oc5# on T&1%

Auto StartF #&M comes in to service in A#' *(( secon$s, a"ter the start

-ermissives were satis"ie$ an$ i" it is se!ecte$ in A#'. #he start

-ermissives "or #&M are

#urbine s-ee$ I1(O;4:( r-m<

0ube oi! hea$er -ressure is not !ow ;PS0 3(4


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Pro-er "unctioning o" instruments in$icatingF

A%ia! $is-!acement

A!! turbine, re$uction gear bo%, generator bearing vibrations

A!! bearing meta! tem-eratures

0ube oi! tem-erature an$ -ressure

ac>ing oi! -ressure

#urbine s-ee$

Ensure D/ E'P is hea!th an$ in stan$b mo$e on the &overnor -ane!.

Start A'P as -er the -roce$ure an$ chec> the 0ube oi! -ressure an$ -arameters

mentione$ in -oint 1.c.

#hrott!e the coo!ing water out!et "rom oi! coo!ers an$ maintain oi! tem-erature aroun$

43 Deg./ J8G 3 Deg./

Engage turning gear -inion b rotating the motor sha"t with the !ever "rom !oca!.

Start the turning gear motor ;#PBSSB&M#< an$ chec> the "o!!owingF

#&M current

A%ia! $is-!acement

A!! bearing vibrations#urbine s-ee$

0ube oi! -ressure

t nee$s a--ro%. 1( hours to coo! $own the turbine casing an$ bearings. A"ter turbine

coo!ing -erio$, the #&M ma be sto--e$. A'P 'P shou!$ be continue$ in service

"or another * hours.

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III-+ONDENSER and AIR EVA+,ATION SYSTE1%

+ONDENSER%

/on$enser is a tubu!ar, nonGcontact t-e heat e%changer, which receives the steam

"rom turbine a"ter $oing wor>, an$ con$enses it to "orm con$ensate

using /+ sstem. /on$ensate E%traction -um-s are connecte$ to

con$enser, an$ the wi!! -um- the main con$ensate to Deareator through

E@ector an$ &!an$ Steam /oo!er. #o increase the wor> $one b the

turbine an$ to avoi$ bac>-ressure on #urbine rotor, -ressure insi$e the

con$enser is maintaine$ be!ow atmos-here -ressure ;vacuumeu- DM water nee$e$ "or the sstem is a$$e$ in the

con$enser "rom /?# through orma! an$ Emergenc ma>eu- contro!

va!ve !ines.

Heat trans"er area in con$enser F *4)3 S9.M

umber o" #ubes F 3(16Dia8#hic>ness o" tubes F **.**38(.1mm

Rate$ /+ "!ow F 35(( /u.m8hr

DP across con$enser at rate$ "!owF I3)(( mmwc

AIR EVA+,ATION SYSTE1 /E7ector #(#te)0%

'ne starting E@ector ;Hogging e@ector


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/on$enser is charge$ "rom /+ si$e.

Hot we!! !eve! is norma!.

/EP is running on reGcircu!ation through Main E@ector, &!an$ steam coo!er.

PRDS steam is avai!ab!e at rate$ -ressure an$ tem-erature.

Ensure water sea!ing is -rovi$e$ "or a!! va!ves connecte$ to con$enser an$ vacuum

brea> va!ve.

*. /!ose the "o!!owing va!vesF

Han$ o-erate$ va!ve in air!ine connecte$ to hogging e@ector an$ main e@ectors.

A!! $rain va!ves an$ contro! va!ves connecte$ to con$enser.

/!ose the vacuum brea> va!ve.

). +arm u- the PRDS hea$er b o-ening the $rain va!ves.

4. B o-erating the PRDS -ressure contro! va!ve an$ #em-erature contro! Va!ves

attain the re9uire$ 3. PRDS -ressure an$ #em-eratures.

6. Ensure PRDS steam is avai!ab!e with 57g8S9.cm an$ *1( Deg./

. Start the &S/ e%haust "an.5. /harge the &!an$ steam coo!er.

:. '-en the steam va!ve to the starting e@ector gra$ua!!.

1(. S!ow! o-en the air va!ve an$ watch "or vacuum. A"ter attaining re9uire$ Va!ue,

G(.6 7g8S9./m ma>e rea$ the main e@ector "or 7ee-ing in service.

11. '-en the steam va!ves o" main e@ector s!ow! an$ then o-enGair va!ve an$

$ischarge va!ve.

/harge the g!an$s b o-ening the H'V in g!an$ sea!ing !ine. Ensure #urbine g!an$

sea!ing steam -neumatic contro! va!ve is o-erating an$ &!an$ steam -ressure is

norma! ;(.1 to (.*7g8S9./m ;g


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A"ter attaining 2(.(7g8S9./m ;g< o" vacuum, iso!ate the startu- e@ector b /!osing

air va!ve "irst an$ steam va!ve ne%t. +ith the main e@ector in service we can attain 2

(.: to 2(.:3 7g8 S9./m ;g


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A"ter con$ensing o" E%haust steam in con$enser, con$ensate "orms. #his con$ensate

is -um-e$ to Deareator using /on$ensate E%traction -um-s through Main e@ectors,

&S/. #he $ischarge o" /EP is a!so use$ "or 1. ?!ash bo% attem-eration,*. Va!ve

sea!ing. ?rom /EP $ischarge hea$er one !ine is connecte$ to /?# with Motor

'-erate$ Va!ve, to $rain the e%cess con$ensate "rom the hot we!!.

/'SESA#E E#RA/#' PMPSF

#wo numbers o" /EPs ;one wor>ing an$ one stan$b< are insta!!e$ to -um- the main

con$ensate "rom con$enser to Deareator through main E@ectors an$ g!an$ steam

coo!er. t has rate$ ca-acit to $e!iver 1*3 ME#ER /BE8H'R at 111.6 7g8S9.cm

an$ is $riven b 413V, 143 r-m, 3 7+ motor. As this -um- su--!ies coo!ing

me$ium to Main E@ector an$ &S/, 1((O avai!abi!it o" this -um- is essentia! to run

the -!ant.

STARTIN& OF +EP%

1. /hec> no !ine c!earance is -en$ing on /EP an$ /on$ensate sstem

*. Ensure that hot we!! !eve! is norma! ((mm /?# !eve! is 13((mm.

). Ensure that suction va!ve is o-ene$ an$ DP across suction strainer is I(.)

7g8S9.cm4. Ensure that the Pum- is -rime$ with con$ensate b o-ening air vent. ;+hen there

is no vacuum.<

3. '-en H'V in !ine "rom /EP $ischarge to mechanica! sea!.

6. Ensure that M/ P/V #0/4)(AM in M/ !ine to Deaerator is c!ose$ an$ P/V

in reGcircu!ation !ine is "u!! o-ene$.

. Ensure that the $ischarge va!ve ;H'V< is c!ose$.

5. Ensure M'V #PB'/MV)3( in /EP she!! /?# !ine is in c!ose$ con$ition.

:. Ensure that E!ectrica! su--! is avai!ab!e.

1(.Ensure that va!ve sea!ing !ine is through to suction va!ves.

11.'-en /EP air remova! !ine va!ve to con$enser.1*./hec> the !ube oi! !eve! in the bearing oi! cu-.

1).Start the Pum- "rom D/S.

14./hec> $isch. Pressure, Motor current, Brg. tem- an$ hot we!! !eve!.

13.'-en M/ P/V gra$ua!! an$ maintain the $ischarge -ressure above 5.(

7g8S9.cm.

1:


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SH,T DOWN SE8,EN+E%

+hen there is no vacuum in /on$enser, the -um- can be sto--e$ b >ee-ing the

Pum- in reGcircu!ation.

WHAT NOT TO DO%1. Don=t a!!ow an !ea>age in suction si$e.

*. Don=t o-en an va!ve, "itting, "!ange in the suction si$e.

n norma! wor>ing con$ition ;/on$enser is in vacuum b -ass.

4. +hi!e c!eaning suction strainer o" stan$ b /EP, ensure the c!ose$ -osition o"

the res-ective suction, $ischarge va!ves, air remova! va!ve to con$enser, a!! $rain

va!ves between -um- suction, $ischarge va!ves an$ o-en -osition o" suction

va!ve sea!ing !ine va!ve.

A,TO +HAN&E OVER OF +EP%1. /hec> no !ine c!earance is -en$ing on stan$b /EP.1. Stan$b -um- shou!$ be se!ecte$ in A#'C mo$e in D/S.

*. Suction an$ $ischarge va!ves shou!$ be in o-en -osition.

). H'V in !ine "rom /EP $ischarge to mechanica! sea! is in o-en

-osition.

Inter!oc5# on +EP%

1. +hen hot we!! !eve! Hi switch ;#0#)((A1< is acte$ ;con$. 0eve! 1((( mm


21/55

"rom the turbine at high -ressure an$ tem-erature an$ heats the "ee$ water "!ows

through them. #he con$ense$ steam "rom HP heater are connecte$ to con$enser an$

$eareator res-ective!.

#he -resence o" certain gases !i>e o%gen, carbon mono%i$e an$ ammonia, $isso!ve$

in water is harm"u! because o" their corrosive attac> on meta!s. Hence these gases are

remove$ in $eareator unit. S-raing the water an$ heating the same b steam achieve

the same. #he Deaerator consists o" two chambers, the $eareating co!umn an$ "ee$

storage tan>.

HP heater charging procedure%

1. Ensure o-en -osition o" air remova! !ine to con$enser

*. Ensure ?ee$ water is charge$ through HP heater

). Ensure e%traction !ine $rain va!ves be"ore an$ a"ter /hec> va!ve are in o-en

-osition.

4. '-en the e%traction chec> va!ve o" HP Heater

3. '-en the HPH e%traction motor o-erate$ va!ve6. Maintain the heater !eve! b o-erating HPH !eve! contro! va!ve to /on$enser u-

to 37g8s9.cm e%traction steam -ressure, an$ at above 3 7g8s9.cm -ressure

maintain the HPH !eve! b o-erating the !eve! contro! va!ve to Deareator..

. A"ter charging o" heater c!ose the $rains be"ore an$ a"ter chec> va!ve.

oteF 1. Do not charge the heater with out water "!owing through them

1. During cut out o" heater, c!ose steam va!ve "irst.

+harging procedure or Deaerator%

/harge the De aerator. a"ter 1( M+ !oa$ it can be charge$ "rom its e%traction !ine.

'-en $rains be"ore an$ a"ter HPH e%traction chec> va!ve

*1


22/55

'-en HPH e%traction chec> va!ve

'-en HPH e%traction b-ass to Deareator M'V

Maintain the Deaerator -ressure at 4.: to 3.( >g8s9.cm b o-erating the Deareator

-ressure contro! va!ve.

A"ter charging o" Deaerator c!ose the $rains be"ore an$ a"ter chec> va!ve.

/harging o" Deaerator "rom its e%traction !ine

'-en $rains be"ore an$ a"ter Deareator e%traction chec> va!ve

'-en Deaerator e%traction chec> va!ve

'-en Deaerator e%traction M'V an$ c!ose the HPH e%traction b-ass to Deaerator

M'V

Maintain the Deaerator -ressure b o-erating the Deareator -ressure contro! va!ve.

A"ter charging o" Deaerator c!ose the $rains be"ore an$ a"ter chec> va!ve.

/hec> the "o!!owing $uring increase o" -ressure in DeareatorF

1. Deareator e%-an$s "ree!.

*. o abnorma! hammering is there in the -i-e !ine.

). Steam an$ air mi%ture is being vente$ through the vent !ine.4. o ma@or steam8water !ea>ages are there.

oteF Do ot De!a n /harging Deaerator A"ter /harging '" 0P Heater.

V- Tur$ine &!and Sea!ing S(#te)%

" the -ressure at the turbine c!in$er ;/asing< is higher than the atmos-here

-ressure, there wi!! be a !ea>age o" steam ;"rom c!earance between rotor an$ stator o"

turbine< into atmos-here causes wastage o" steam. #he -ressure is !ess than the

atmos-heric -ressure there wi!! be ingression o" air into con$enser causing "a!!ing o"

vacuum. #o avoi$ this -rob!em g!an$ sea!ing is -rovi$e$ with *(( (/ tem-erature an$

(.1Gto (.*G>g8s9.cm steam. 'ne )Gwa -neumatic contro! va!ve is -rovi$e$ "or this

-ur-ose.

**


23/55

During turbine ro!!ing an$ u- to 1(M+ !oa$ the au%. Steam with 57g8s9.cmN 15( (/

is being use$ "or sea!ing. A"ter 1(M+ !oa$, the turbine HP g!an$ !ea> o"" steam is

being use$ "or turbine 0P g!an$ sea!ing. #o co!!ect an$ con$ense the g!an$ !ea> o""

steam "rom turbine "ront an$ rear g!an$s, g!an$ steam -i-ing an$ g!an$ steam coo!er

are -rovi$e$. #urbine g!an$s are to be sea!e$ with g!an$ steam $uring vacuum -u!!ing

a"ter attaining ;2< (.(7g8s9.cm ;g< vacuum in con$enser.

A"ter tri- o" turbine, to >i!! the vacuum sto- the g!an$s sea!ing b c!osing the han$

o-erate$ va!ve be"ore ) 2 wa -neumatic contro! va!ve.

VI- +o!d9 War) and Hot #tart o Tur$ine:

+o!d Start O Tur$ine

#urbine start u- is terme$ as co!$ start u-, i" it is being starte$ 1( to 1* hours a"ter

shut$own or the meta! tem-erature is g8s9.cm an$ )3( $eg /. However, accor$ing to the site con$itions, we

are ab!e to achieve 4( 7g 4(( $eg /.

An average increase rate o" meta! tem-erature o" MS !ine, ESV, #urbine chest an$

#urbine casing, shou!$ not to e%cee$ given va!ues as be!ow.Meta! tem-erature increase rate o" meta! tem-. Deg.c8min.

1(( $eg / to *(( $eg / 4.(

*(( $eg / to )(( $eg / ).(

)(( $eg / to 4(( $eg / *.(

4(( $eg / to 3(( $eg / 1.(

3(( $eg / to 313 $eg / (.6

#he ma%imum increase rate o" meta! tem-erature o" the ms connecting -i-e shou!$

not e%cee$ 13$eg.c8min.

. Ensure the "o!!owingF

o !ine c!earance is -en$ing on #& set.

*)


24/55

Boi!er is steaming an$ steam is avai!ab!e.

A!! #& inter!oc>s an$ -rotections are chec>e$ an$ chec>ing o" a!! motor o-erate$

va!ves, Pneumatic

'-erate$ contro! va!ves c!osing an$ o-ening is com-!ete$.

#& instrumentation 8 annunciation sstem is '7. Root va!ves to transmitter !ines are

in o-en

Position.

D/ su--! is hea!th "or E'P an$ trai! run was ta>en.

M'# !eve! is norma!.

'verhea$ tan> !eve! is norma!.

Auto start o" E'P, /'P G 1*, A'P, are chec>e$.

. /arr out re!ate$ o-erations an$ ensure the "o!!owing

A'P'P are running as -er the -roce$ure.

/'P is running as -er the -roce$ure.

E'P is se!ecte$ in stan$b mo$e on the &overnor -ane!.

'i! "!ow is norma! through the bearings ;observe "rom sight g!ass


25/55

/hec> the set -ressure o" sea!ing steam ;P/ 1(< is (.1 to (.*7g8S9./m ;g< then

o-en the sea!ing

Steam H'V.

A"ter attaining (.3 7g8S9./m ;a< -ressure in con$enser, o-en the $rains in e%traction

!ines to

remove the /on$ensate in the -i-e!ines.

Ensure the "o!!owing $rains are o-en

Drain be"ore MSV ;# va!ves an$ M'Vs are in c!ose$ -osition.

Meanwhi!e, attain con$enser vacuum to G(.: 7g8S9.cm ;g an$ recor$ the "o!!owing #urbovisor rea$ingsF

Rotor a%ia! $is-!acement#herma! e%-ansion ;0oca! measurement<

#urbine, Re$uction &ear an$ &enerator rotor vibrations

#urbine s-ee$

M'# !eve!

0ube oi! -ressure an$ tem-erature

A!! bearing tem-eratures

/asing meta! tem-erature

MS -ressure an$ tem-erature

&!an$ steam -ressure an$ tem-erature

/on$enser vacuum

PRDS -ressure an$ tem-erature

*3


26/55

Ensure main steam !ine is warme$ u-to MSV ;# !ube oi! -ressure, tri- oi! -ressure, contro! oi! -ressure an$ !ube oi!

tem-eratures.

/hec> the autoGstan$b -osition o" /'P, E'P.

'-en the ESV b -ressing the #urbine ResetC button on #&P. /hec> the o-en "ee$

bac> on #&P an$ warm u- the chest at !east *( min. #his is tentative, ensure the chest

$rain tem-. is e9ua! to the MS meta! tem-.

Ensure the Hotness o" ESV an$ #urbine /hest $rains.

/hec> A'P #urning &ear are in service an$ se!ecte$ in auto.

'-en the MSV ;#< be"ore going to ro!! the turbine.

Start the #urbine ro!!ing b -ressing the S#AR#C button on #&P. #he governor wi!!acce!erate the s-ee$ o" the turbo generator an$ ho!$ it at i$!e s-ee$ 3( r-m. During

the s-ee$ rise, chec> "or #urning gear motor sto- at the set r-m ; 1(O o" rate$ r-m an$ recor$ the sha"t vibrations an$ a%ia! $is-!acement monitor on #&P.

/hec> whether the turbine casing e%-ansion has starte$ an$ its -ointer is moving on

!oca! sca!e, near turbine "ront bearing.

A"ter ensuring e%-ansion b 1.( to 1.3mm, Press the RA#ED SPEEDC button on

#&P. #he governor wi!! acce!erate the s-ee$ o" the turbine generator automatica!! to

*6


27/55

45: r-m. 'bserve "or the bearing vibrations in the /ritica! s-ee$ range "rom 163( 2

*(3( r-m.

/hec> A'P are sto--e$ at :3O;463( r-m< res-ective!.

Start the /# "ans be"ore snchroniing the generator as "or the -roce$ure.

Snchronie the generator with the &RD as -er the -roce$ure.

ncrease the !oa$ on generator to ) M+.

/!ose a!! the MS $rains.

&ra$ua!! increase the !oa$ ;not more than 1.(mw8min< b means o" SPEED80'AD

SE##&C !ever on #&P or &enerator contro! -ane!.

At 6.( M+ !oa$, o-erator can se!ect "or !oa$ contro! when connecte$ with gri$.

Steam tra-s o" ESV, #urbine /asing, #urbine /hest $rains shou!$ be >e-t in service

an$ c!ose the b-ass va!ves.

Ensure the Steam tra-s are wor>ing or not. " the are not wor>ing o-en the b-ass

va!ve s!ight!.

&ra$ua!! increase the !oa$ as -er the !oa$ing -roce$ureC.

A"ter -ara!!e!ing with both the boi!ers gra$ua!! increase the !oa$ to )(M+ as -er the

-roce$ure.

*


28/55

War) #tart up and Hot #tart up

#urbine start u- is terme$ as +arm startu-C i" it is being starte$ ) to 4 hours a"ter

tri- o" turbine. #urbine start u- is terme$ as Hot Startu-C i" it is being starte$ with

in * hours a"ter tri- o" the turbine. ?o!!ow the -roce$ure "or the co!$ startu- u-to

s-ee$ u- to i$!e s-ee$ ;i.e 3( r-ming at the i$!e s-ee$. Ensure that casing e%-ansion has starte$ "rom !oca! sca!e

$uring soa>ing than -revious con$ition. A"ter ensuring that casing e%-ansion has

starte$, then give comman$ "or Rate$ S-ee$. MS tem-erature shou!$ be maintaine$

3( (/ more than MS s>in 8 MS tem-.at #urbine in!et. ;Sub@ecte$ to o-erating

tem-erature 2 3)( (/ at #urbine in!et.<

?or warm an$ hot startu- "o!!owing -arameters can be maintaine$.

" the meta! tem-eratures are in!et steam -arameters must be

)(($eg.c ;warm< 4(>g8s9 cm an$ 4(( $eg.c

)3($eg.c 3(>g8s9 cm an$ 43( $eg.c4(($eg.c 63>g8s9 cm an$ 45( $eg.c

43($eg.c 3>g8s9 cm an$ 3(( $eg.c

During an start o" turbine, $o not "orget to o-en a!! the #urbine $rains.

VII- Loading o Tur$ine%

A"ter snchroniing the turbo generator with gri$ the minimum !oa$ to be maintaine$

is 4M+.

/hec> a!! #urbovisor instrument rea$ings are norma!.

/hec> rise o" turbine casing meta! tem-erature an$ its casing e%-ansion.

Ensure smooth running o" #urbine.

*5


29/55

Raise the !oa$ at (.3M+ increment ;1.(mw8min< b observing MS -ressure an$

tem-erature at turbine in!et.

At above 6 M+ !oa$ ta>e &enerator LAutomatic Power contro!= in to service.

At 5M+ stab!e !oa$ charge the Deareator as -er the -roce$ure.

At 1* M+ stab!e !oa$ charge the HP heater as -er the -roce$ure.

I6- P!anned and E)ergenc( Shutdo"n o Tur$ine%

P!anned #hut do"n%

Re$uce the !oa$ on #& gra$ua!! to ) M+, b o-erating the !oa$8 s-ee$ switch on

&/P.

+hen !oa$ is at 1* M+ cut o"" HP Heater.

+hen !oa$ is at 5 M+ cut o"" Deaerator.

'-en generator brea>er as -er the -roce$ure.

Manua!! shut $own the turbine ;$ece!erate the turbine s-ee$ b -ressing theRemote #ri-C button on #&P va!ves an$ e%traction motor o-erate$ va!ves ;M'Vs< got

c!ose$ on inter!oc>.

'-en a!! the Be"ore Q/Vs $rains.

/!ose HP heater $ri- to $eaerator con$enser contro! va!ves an$ 0P heater $ri- to

con$enser.

'-en MS $rains to atmos-here.

Ensure /'Ps, A'P, 'Ps, #&M turns to A#' se!ection on inter!oc> at :3O s-ee$.

*:


30/55

'bserve A'P to start in auto when !ube oi! hea$er -ressure $ro-s to (.5J8G(.*

7g8S9./m. " it is not starte$, start the -um- manua!! an$ observe $ischarge

-ressure.

Ensure #&M starts in auto at I1(O s-ee$ with time $e!a o" 13( secon$s. " it is not

starte$, engage the turning gear manua!! at (C r-m o" the turbine an$ start #&M

"rom D/S.

+hen the shut $own -erio$ is !ess than 1.( hour, maintain the vacuum in con$enser.

During this -erio$, ensure that g!an$ sea! e%haust "ans are in continuous service an$

the PRDS -arameters shou!$ be re$uce$ to .(>g8s9.cm 13($eg.c gra$ua!! i.e

3$eg.c8min.

+hen the shut $own -erio$ is more than 1.( hour, >i!! the vacuum in con$enser b

o-ening the vacuum brea> va!ve. Be"ore o-ening the vacuum brea> va!ve, ma>e sure

that han$ o-erate$ va!ve in g!an$ sea!ing steam su--! !ine is c!ose$ an$ iso!ate the

Main e@ector as -er -roce$ure.

Be"ore >i!!ing the vacuum c!ose a!! the Be"ore Q/Vs $rains.

1. Sto- /'P as -er the -roce$ure.*. Run the /+ -um- * hours.

). Run the /EP in recircu!ation aroun$ 4 hours.

4. Run the &S/ E%haust "an aroun$ 4 hours.

3. #he coasting $own -erio$ o" the turbine wi!! be a--ro%imate! *( minutes.

6. orma! #&M o-eration -erio$ is 1( hours a"ter tri- o" turbine as -er SM

manua!, as -er SM Engineer nstructions it is a!so a measurement o" /asing

E%-ansion shou!$ be I* mm on !oca! in$icator but -ractica!! it is ta>ing 14 to

*( hours to coo! $own the turbine casing, rotor an$ the bearings.

. A"ter coo!ing $own -erio$, sto- #&M an$ run the A'P, 'VE "ans "urther *

hours.

)(


31/55

5. A"ter ensuring the bearing Babbitt, oi! in!et an$ $rain oi! tem-erature becomes

near e9ua!. Sto- A'P, +hen A'P is sto--e$ E'P wi!! start in auto. Sto- E'P

"rom #&P.

:. Sto- ;'VE?< oi! va-our "an.

Emergenc Shut Down

1. n case o" emergenc, the turbine can be sto--e$ b either o" the "o!!owing

metho$s.

LRemote tri-= button on #&P an$ &/P.

LManua! tri- coc>= !ever "rom "ront bearing ;i.e Han$ #ri-<

#urbine tri- "rom Des> -ush button.

(*. ?or the Emergenc shut$own $ue to abnorma!it o" M8/ or tri--ing o" the #& on

-rotection "o!!owing ste-s are to be ta>enF

Ensure ESV, MSV ;#< are c!ose$, a!! e%traction M'Vs, e%traction chec> va!vesEnsure /'Ps, A'P, 'Ps, #&M turns to A#' se!ection on inter!oc>.

Ensure A'P has starte$ on 0ube oi! -ressure !ow inter!oc>.

Ensure #&M starte$ in A#' as -er the inter!oc>

" re9uire$ >i!! the vacuum as -er the -roce$ure.

/ontinue A'P, #&M, &S/ e%haust "an, 'VE "an, /EP, /+ -um-s in service as -er

the -roce$ure.

(). ?o!!ow the activities mentione$ in the above P!anne$ Shut$ownC.

WOR: INSTR,+TIONS

)1


32/55

6- E)ergenc( condition# during Tur$ine Operation%

#he "o!!owing emergenc con$itions ma occur $uring #urbine o-eration. #he

turbine o-erator shou!$ a!was be rea$ to ta>e correct $ecision an$ act as -er the

o-erating -roce$ures. t is a!so necessar that he shou!$ >now about the boi!ers

!oa$ing status, #ieG "ee$ers -ositions, im-ort an$ e%-ort -ower $etai!s in his shi"t.

a. #ota! -ower "ai!ure

b. s!an$ mo$e o-eration

c. An one boi!er tri-

$. D/S "ai!ure

a- Tota! po"er ai!ure%

During tota! -ower "ai!ure, there wi!! be no -ower su--! to the A/ $rives ;B?P, /+

A/+ -um-s, /EPs, /'Ps, A'P, #urning &ear, 'i! Va-or E%haust ?ans &S/E%haust ?ans

o-eratorF

n"orm to #urbine "ie!$ o-erator about tota! -ower "ai!ure an$ subse9uent o-erations

to be carrie$ out.

Ensure ESV is c!ose$ an$ E%traction chec> va!ves are c!ose$ on inter!oc>. " not,

c!ose them "rom D/S.

/hec> E'P starts on inter!oc> at I (.6* 7g8S9./m. " not, start E'P "rom #&P.

/!ose the "o!!owing contro! va!vesF

orma! Emer. Ma>e u- va!ves b observing the con$enser !eve!

PRDS -ressure contro! va!ve to iso!ate the e@ectors an$ g!an$s.

PRDS tem-erature contro! va!ve

0PH $ri- /V to /on$enser.

HPH $ri- /V to /on$enser

HPH $ri- /V to Deaerator

Deaerator -ressure contro! va!ve to $e-ressurie the Deaerator.

)*


33/55

/!ose the so!ation va!ves in PRDS Pressure /V an$ #em-erature /V. /!ose H'Vs in

air an$ steam !ines o" E@ector "rom !oca!.

/!ose H' iso!ation va!ve in &!an$ sea!ing !ine.

/!ose a!! $rain va!ves connecte$ to con$enser. An$ o-en Vacuum brea> va!ve.

A"ter restoring the Emergenc D& set -ower, c!ose the "o!!owing va!vesF

A!! three e%traction M'Vs

Main steam sto- va!ve ;#urbine<

Discharge va!ve o" B?P

Start A'P a"ter in"orming to Switchgear o-erator.

Start 'P as -er the -roce$ure.

A"ter turbine reaches to I1(O o" rate$ RPM start #&M as -er the -roce$ure.

?ie!$ '-erator=s $ut $uring tota! -ower "ai!ureF

/!ose iso!ation va!ves o" PRDS Pressure /V an$ #em-erature /V.

/!ose Main e@ector air va!ves an$ steam va!ves.

Ensure E'P is starte$ an$ 0ube oi! -ressure is norma!.

/!ose H'V in g!an$ sea!ing !ine./!ose $ischarge va!ves o" /+ -um-s.

/!ose a!! $rains connecte$ to con$enser. Ensure turbine g!an$ sea!ing steam

-neumatic contro! va!ve is o-erating an$ g!an$ steam -ressure is norma! ;(.1 to

(.*7g8S9./m ;g


34/55

#he "o!!owing -roce$ure is to be "o!!owe$F

0oa$ $ro-s 8 rises as -er the ?AP $eman$. #he turbine rotor s-ee$ an$ MS -ressure at

turbine in!et wi!! change.

Maintain the &enerator ?re9uenc at 3(H b changing the turbine s-ee$ "rom

!oa$8s-ee$ changeC !ever "rom #&P.

Ensure the steam being su--!ie$ "rom the Boi!er is su""icient to generate the !oa$ on

the turbine. " steam "!ow is !ess, MS -ressure wi!! $ro-. As> shi"t engineer to

$ecrease the !oa$ on ?AP to the suitab!e !imits.

'bserve the turbovisor rea$ings !i>e a%ia! shi"t, a!! bearing vibrations, a!! bearing

tem-erature an$ casing e%-ansion "or an change. Do not a!!ow MS tem- to "a!!

shar-!.

0P heater !eve!s, HP heater !eve!s an$ Deareator -ressure ma $isturb $ue to !oa$

"!uctuations. /ontro! the above -arameters in manua! mo$e.

- D+S ai!ure condition%

/ourse o" action "or turbine $es> o-erator an$ "ie!$ o-erator, when tota! D/S /R#=s

are not avai!ab!e- O$tain the in#truction# to run or to trip the unit ro) &1 /PP0;D&1 /Os ma wor>.

Ensure turbine !oa$ 8 MS -ressure contro! remains in Auto mo$e.

MS -ressure, #urbine RPM, &overnor va!ve actuator -osition can be monitore$ "rom

+''D +ARDC sstem.

Monitor an$ /ontro! PRDS -ressure an$ tem-erature "rom !oca!.

/on$enser !eve! shou!$ be monitore$ "rom !oca! gauge g!ass.

Deaerator !eve! has to be monitore$ "rom !oca! gauge g!ass.

/EP $ischarge -ressure shou!$ be observe$ "orm !oca! -ressure transmeter an$ gauge.

)4


35/55

'bserve HP, 0P, Deareator e%traction -ressures "rom !oca! -ressure transmitters.

0P, HP heater !eve!s to be monitore$ "rom !oca! gauge g!ass an$ !eve! transmeter

ana!og in$ication.

'bserve !ube oi! -ressure, governing oi! -ressure, tri- oi! -ressure, M'# !eve!,

vacuum an$ &!an$ steam -ressure !oca! gauges8transmitters.

Maintain the same !oa$.

'bserve B?P -arameters "rom !oca!. n"orm to Boi!er o-erator to maintain constant

"ee$ water "!ow

Procedure to $e o!!o"ed to trip the tur$ine%

" an abnorma!it is "oun$ $uring this -erio$ tri- the turbine as -er the -roce$ure

givenF

n"orm the Boi!er o-erator about tri--ing.

#ri- the turbine "rom !oca! han$ tri- !ever or remote tri- "rom #&P.

Ensure ESV, a!! e%traction chec> va!ves an$ e%traction M'Vs c!ose$ "rom #&P an$

!oca!.

Ensure A'P 8 'P 8 #&M has starte$ in se9uence as -er the inter!oc>. " not startthem as -er -roce$ure "rom M//. " A'P has not starte$ in A#', Start E'P "rom

start -ush button on #&P.

so!ate the PRDS station b c!osing the PRDS -ressure /V an$ #em-erature /V

iso!ation han$ o-erate$ va!ves.

so!ate the &!an$ sea!ing !ine b c!osing the han$Go-erate$ va!ve in &S su--! !ine.

/!ose 0P heater an$ HP heater $rains to con$enser /Vs iso!ation va!ves.

/ontinue A'P, /'P, , #&M, 'VE?, &S/E?, /EP, /+ Pum-s, A/+ Pum- to run.

Sto- the B?P a"ter ta>ing c!earance "rom Boi!er o-erator "rom !oca!. ;A"ter bo% u- o"

boi!er<

Run the /EP in com-!ete ReGcircu!ation.

/ut o"" the !ube oi! coo!ers i" necessar.

)3


36/55


37/55

Ensure &!an$s sea!ing steam contro! va!ve is "unctioning norma!!

Ensure the -arameters o" turbine an$ its au%i!iaries are within the !imits

/hec> the sea!ing water to /on$enser connecte$ va!ves are given

/hec> starting e@ector air va!ve an$ vacuum brea> va!ve are tight! c!ose$

Ensure that a!! instruments "unctioning -ro-er!

Ensure that stan$b A/+ an$ stan$ b /EP $ischarge va!ves are in o-en

-osition.

DON=T#

1. Do not o-erate the turbine, an e9ui-ment b-assing the inter!oc>s

*. Do not o-erate the turbine with high vibration va!ues an$ high bearing

tem-eratures con$itions

). Do not a!!ow su$$en $ro- or rise in MS tem-erature an$ MS -ressures.

4. Do not start the vacuum -u!!ing with out turbine on #urning &ear o-eration

3. Do not start the &!an$s charging with out turbine on #urning &ear o-eration

6. Do not continue turbine on #&M o-eration i" unusua! soun$ 8 vibration comes

"rom g!an$ sea!, bearings etc.

. Do not o-erate the turbine with 0'+ main oi! tan> !eve!s.

5. Do not start the #&M with out 'ver hea$ oi! tan> !eve! norma!

:. Do not start the #urbine with out 'ver hea$ oi! tan> !eve! norma!

1(.Do not start the #&M with out running the A'P'P.

11.Do not run 0ube oi! sstem with out running the oi! va-or e%haust "an.

1*.Don=t run 'i! va-or E%haust ?an when M'# !eve! is high.

1).Do not a!!ow hot rotor to stan$ with out ro!!ing ;with out #&M o-eration<

14.Do not over!oo> abnorma!it in an im-ortant rea$ing

13.Do not "orget to chec> stan$ b -osition an$ hea!thiness o" D/ E'P

16.Do not a!!ow an !ea>age in the suction si$e o" the /EPs.

1.Do not start the /EP with out o-ening o" Air remova! an$ &!an$ sea!ing.

)


38/55

15.Do not o-en an va!ve, "itting, "!ange in the suction si$e o" /EPs in norma!

wor>ing con$ition. +hen con$enser is in vacuum this wi!! cause vacuum to

$ro- an$ -um- ;/EP< to !oose its suction.

1:.+hi!e c!eaning suction strainer o" stan$ b /EP, ensure c!osure o" suction

va!ve.

*(.Do not >ee- the steam va!ve o" main e@ector o-en "or !ong time i" con$ensate

"!ow is not there through main e@ector.

*1.Do not run the turbine with o-en or un tightene$ "!anges on oi! tan>, oi! -i-ing,

steam -i-ing. etc.

**.Don=t charge the PRDS !ine without c!osing the #urbine &!an$s so!ation

Va!ve.

*).Do not o-en the Vacuum brea> va!ve with out so!ating the &!an$s so!ation

va!ve an$ Steam !ines connecte$ to /on$enser.

BOILER FEED P,1P%

n therma! -ower -!ant cc!e the "ee$ -um-s are -!ace$ in the "ee$ water sstem an$

are inten$e$ to $e!iver the "ee$ water to the boi!er. 1((O avai!abi!it o" these -um-sare essentia! to run the -!ant.

#his -um- $e!ivers "ee$ water at higher -ressure against boi!er resistance, through

"ee$ contro! station. #he "ee$ contro! station regu!ates the "ee$ water "!ow accor$ing

to $rum !eve!.

#wo numbers o" $i""user t-e boi!er "ee$ -um-s su--!ie$ b 7SP ma>e, are insta!!e$

here. #he B?Ps are rate$ to $e!iver each 13( cu.m8hr. "ee$ water against a hea$ o"

1*3 M!c an$ is $riven b )( 7+, *:5(Gr-m motor.

8#echnica! Data8

#-e o" -um- F Di""user ?ee$ water tem-erature F 135 Deg./

?!ow rate F 166 #PH

Deve!o-e$ hea$ F 1*53 M!c

S-ee$ F *:5( r-m

et -ositive suction hea$ F 3.5m!c

Recircu!ation "!ow F 4( #PH

Direction o" Rotation F //+ "rom Motor DE.

)5


39/55

STARTIN& OF BFP%

Ensure no !ine c!earance is -en$ing on B?P, its au%i!iaries an$ its connecting -i-ing

an$ va!ves. Ensure su--! to the Motor is avai!ab!e.

Ensure Deaerator !eve! is norma! an$ /EP is in service to maintain its !eve!./hec> the !ube oi! !eve!s o" -um- DE DE bearings.

Ensure A/+ -um- is in service.

#he in!et an$ out!et va!ves o" A/+ water to B?P shou!$ be in o-en -osition an$

chec> the A/+ -ressure at B?P is *.3 7g8 S9.cm

#he "o!!owing in!et an$ out!et va!ves shou!$ be in o-en -ositionF G

a. Pum- DE si$e G #hrust bearing housing

Stu""ing bo%

Sea! water coo!er

b. Pum- DE si$e G ourna! bearing housing

Stu""ing bo%

SSea! water coo!er

Ensure the "ee$ water sstem is through to HP Heater.

Ensure o-en -osition o" suction va!ve o" B?P.

Ensure $ischarge va!ve is in c!ose$ -osition.

/hec> that han$Go-erate$ va!ves ;* nos< in ba!ancing !ea> o"" !ine ;one is at -um-

an$ another at Deareator tan>< are in o-en -osition./hec> the H'V in recircu!ation !ine ;at Deareator tan>< is in o-en -osition.

Ensure a!! iso!ation va!ves in im-u!se !ines are o-en.

Ensure the !oca! Push Button is re!ease$.

/!ose the warm u- va!ves "or starting the -um-.

Ensure that PRDS Attem-eration is iso!ate$ "rom B?P $ischarge.

/!ose the warm u-.

Start the Pum- "rom D/S an$ >ee- the -um- in recircu!ation "or * minutes an$

observe the "o!!owingF

a. Suction $ischarge -ressures. b. Suction $ischarge tem-eratures.

c. Bearing tem-eratures.

$. Sea! water tem-eratures.

e. Di""erentia! -ressure across the suction strainer.

". Ba!ancing !ea> o"" reGcircu!ation !ine -ressures.

g. Motor currents.

h. An abnorma! soun$s.

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i. 0ube oi! !eve!s in bearing cu-s.

'-en the $ischarge va!ve "rom contro! room D/S.

Ensure ba!ancing !ea> o"" -ressure is higher than suction -ressure.

'bserve the -arameters in -oint no 16.

Shut do"n #e2uence%

1. /!ose the $ischarge va!ve.

*. 7ee- the Pum- in reGcircu!ation.

). Sto- the Pum- "rom /ontro! room.

NOTE>

1. 'bserve Motor currents shou!$n=t e%cee$ 4 am-s.*. +hen the Motor currents have crosse$ 4 am-s an$ ten$ing to increase,

in"orm Shi"t n charge or Boi!er Des> '-erator.

). Don=t a!!ow the Pum- to start or run with Protection inter!oc> b-ass.

WHAT NOT TO DO%

1. Don=t c!ose the va!ves in reGcircu!ation an$ ba!ancing !ea> o"" !ines

*. Don=t a!!ow the B?P to run when the bearing tem-eratures e%cee$s5( $eg.

). Don=t run the Pum- without A/+ -um- is in service.4. Don=t a!!ow the Pum- to run when the sea! water tem-. E%cee$s the !imit.

;5( $eg<

3. Don=t switch on the -um- $uring $ischarge va!ve is in o-en -osition.

STARTIN& PER1ISSIVES%

Ensure the "o!!owing -ermissive at D/S 0oca!.

1. Discharge va!ve is in c!ose$ -osition.

*. Deaerator !eve! is not !ow :((mm). DP across suction strainer is not high.

PROTE+TIONS FOR BFP%

a. Deaerator !eve! !ow F I 4((mm.

b. B?P suction -ressure !ow ;tri- not incor-orate$


41/55


42/55

SH,T DOWN SE8,EN+E%

1. /!ose the $ischarge va!ve.

*. Switch o"" the Motor.

STARTIN& PER1ISSIVES%

1. /+ Sum- !eve! is *5(( mm.

PROTE+TIONS%

1. Sum- !eve! !ow !ow. ;Va!ue not incor-orate$.<

I1PORTANT NOTE%

1. Don=t start the Pum- >ee-ing Discharge va!ve in o-en -osition.

*. Maintain sum- !eve! between *5(( an$ )((( mm.

). +hen both the -um-s are in service, ensure that at !east two riser va!ves must be

in o-en -osition.

4. Discharge va!ve o" the stan$ b -um- shou!$ be in c!ose$ -osition.3. Don=t a!!ow the -um- to start or run with -rotection inter!oc> b-ass.

4*


43/55

DES7 'PERA#'RS &DEF

The o!!o"ing are the Protection# /Trip 'a!ue#0 o the Tur$ine%

1. Steam tem-erature at turbine in!et high high 34) Deg./

*. Steam tem-. at turbine in!et !ow !ow I 46($eg/, this -rotection comes in to

service on! when MS tem-erature reaches to 4:3 $eg / an$ then "a!!s to 46(.

). Steam -ressure at turbine in!et !ow !ow I 6( >g8s9.cm ;ma be b-asse$ initia!!

"or /o!$ an$ +arm start u-s i" re9uire$.<

4.Steam -ressure at turbine in!et high high 1()>g8s9.cm ;not incor-orate$ -ush button.1). E%haust steam -ressure high high 1.) 7g8S9.cm ;abs<

14. E%haust steam #em-erature high high 13( $eg/

13. 0ube oi! reservoir !eve! ;M'#< !ow !ow I )3( mm.

16. Hot we!! !eve! !ow !ow I )((mm

1. Hot we!! high high 14(( mm

15. #urbine Rotor a%ia! shi"t high high J(.63, G(.63 mm.

1:. #urbine "ront sha"t vibration high high :( microns

*(. #urbine rear sha"t vibration high high :( microns

*1. Re$uction gear -inion "ront sha"t vibration high high 14( microns

**. Re$uction gear -inion rear sha"t vibration high high 14( microns

*). Re$uction gear whee! "ront sha"t vibration high high 15( microns

4)


44/55

*4. Re$uction gear whee! rear sha"t vibration high high 15( microns

*3. &enerator "ront sha"t vibration high high 16( microns

*6. &enerator rear sha"t vibration high high 16( microns

*. #urbine thrust bearing tem-erature high high ;inactive< 1*( Deg./

*5. #urbine thrust bearing tem-erature high high ;active< 1*( Deg./

*:. #urbine "ront sha"t bearing tem-erature high high 1*( $eg/

)(. #urbine rear sha"t bearing tem-erature high high 1*( $eg/

)1. Re$uction &ear -inion "ront bearing tem-erature high high 1*( $eg/

)*. Re$uction &ear -inion rear bearing tem-erature high high 1*( $eg/

)). Re$uction &ear whee! "ront bearing tem-erature high high 1*( $eg/

)4. Re$uction &ear whee! rear bearing tem-erature high high 1*( $eg/

)3. &enerator "ront bearing tem-erature high high 53 $eg/

)6. &enerator rear bearing tem-erature high high 53 $eg/

). HP heater !eve! high high *:(mm. ;Protection shou!$ be b-asse$ $uring

charging o" HP heater.< not incor-orate$.

ANNE6,RE*I9 Tur$o &enerator Set * A!ar)# and Trip 'a!ue#

S.N Tag No De!"#$%#o& o' Tag No" Lo (# LL HH;Trip +onden#ate S(#te)

01 TPT106 Exhaust steam press.(Vacuum) Kg/Sq.cm (abs)

0.086 0.05 0. 0.0! 0.5/1.)

0! TT"800 #$ Temperature at #%&'

"/1 *eg.c

0 !6 + !5 6

0 TT"801 #$ Temperature at #%&',/1 *eg.c

)* )+ +2 )) ++

0+ TT"80! #$ Temperature at #%&'"/! *eg.c

0 !6 + !5 6

05 TT"80 #$ Temperature at #%&',/! *eg.c

)* )+ +2 )) ++

44


45/55

06 TT"106 Exhaust steam temperature*eg.c

++ 1!0 150/1,0

0- TT00 #%&'e&ser ee mm 800 600 1000

00/)00

1+00/1+00

08 TT++0 #2T ee mm 16,01900

03 T*PT+00

*P acr%ss #%&'. e4tmmc

,)00 +500 6000500 000

10 T*PT+00

*P acr%ss #%&'. 7ghtmmc

,)00 +500 6000500 000

11 T#V++02

Emerge&c9 :a;eup #V2ee' bac;

1! T#V++02

%rma :a;eup #V 2ee'bac;

1 T#V00

2

#EP 7ecrcuat%& #V 2ee'

bac;1+ T#V+02

*eareat%r ee #V 2ee'bac;

15 TPT!1 #EP *scharge PressureKg/Sq.cm

3.0 -.0 11 6.0 1+.0

16 =%t e Temperature *eg.c ++ +0 5! 5 55

13 T*PT+0

:a& #%&'e&sate 2% TP= 106 80 1!0 50 1+0

!5 #PT+80 #$ =ea'er pressureKg/Sq.cm

1.6 1.+ 1.8 1.0 !.0

BFP < Feed "ater #(#te)

01 TT"+-0 2$ temperature at 2P1Suct%& *eg.c

158 10 165 100 1-0/10

0! TT"+-0 2$ temperature at 2P!Suct%& *eg.c

158 10 165 100 1-0/10

0 TT"+-1 2$ temperature at 2P1 158 1+0 160 1!0 160

43


46/55

*sch *eg.c0+ TT"+-1 2$ temperature at 2P!

*sch *eg.c158 1+0 160 1!0 160

05 TPT+60 2P1 *scharge PressureKg/Sq.cm

1!0.5 110 15 105/10,

1+0

06 TPT+-0 2P! *scharge PressureKg/Sq.cm

1!0.5 110 15 105/10,

1+0

0- TT"+68 2P1 *E ear&g Temperature *eg.c

60 -0 80/*0

08 TT"+68 2P! *E ear&g Temperature *eg.c

60 -0 80/*0

03 TT"+63 2P1 *E ear&g Temperature *eg.c

60 -0 80/*0

10 TT"+63 2P! *E ear&g

Temperature *eg.c

60 -0 80/*0

11 TT"+66 2P1 :%t%r *E ear&g Temp *eg.c

-0 90 80/9,

1! TT"+66 2P! :%t%r *E ear&g Temp *eg.c

-0 90 80/9,

1 TT"+6- 2P1 :%t%r *E ear&g Temp *eg.c

-0 90 80/9,

1+ TT"+6- 2P! :%t%r *E ear&g Temp *eg.c

-0 90 80/9,

15 TPT10 =P= Ext. Steam pressure

Kg/Sq.cm

!0.5 18 !! 15 !5

16 TT"10 =P= Ext. Steamtemperature *eg.c

- 00 50 !80 60

1- TT"-0! =P= *ra& temperature*eg.c

15+ 1+0 165 1!0 180

S.N Tag No De!"#$%#o& o' Tag No" Lo (# LL HH;Trip

18 TT"-0+ 2$ temp at =P= "/ *eg.c 158 15 155 1!0 16013 TT"-0 2$ temp at =P= ,/ *eg.c !!0 130 !!5 180 !5

!0 TT+!0 =P= ee >1 mm 1*0 1-0 !!0 160 2+0290

!1 TT+!0 =P= ee >! mm 1*0 1-0 !!0 160 2+0290

!! T#V+!02

=P= 'ra& t% *eareat%r #V2ee' ac;

! T#V+!0 =P= 'ra& t% #%&'e&ser #V

46


47/55

2 2ee' ac;!+ TPT10+ *eareat%r Extr Steam

Pressure Kg/Sq.cm5.00 5.51 6

!5 TT"10+ *eareat%r Extract%& Steam Temp *eg.c

!13 !+0 00

!6 TPT+0 *eareat%r PressureKg/Sq.cm

5.0 5.5 6.0

!- TT+0 *eareat%r ee > 1 mm 11,0 650 1+65

,00+00

1665

!8 TT+0 *eaerat%r ee > ! mm 11,0 650 1+65

,00+00

1665

!3 TT+0SE

*eareat%r ee Seect%&mm

1),0 650 1665

,00+00

1865

1ain Stea);Au.-;&!and #tea)#(#

01 1PT001 : S press at c%mm%&hea'er Kg/Sq.cm

30 80 35 60/60 105

0! TPT101 Steam pressure at turb&e"/

30 80 35 80 9+102

0 TT"101 Steam temperature atturb&e "/ *eg.c

50 +85 58 +60/+60

5+/,+)

0+ TPT10! Steam pres a4t turb&e 1st stage Kg/Sq.cm

6, 6 6

05 TT"10!1 Steam temp a4ter turb&e1st stage *eg.c

+-5 +80

06 TPT16+P7*S Pressure Kg/Sq.cm !+ !! !- !0 00- TT"15! P7*S steam Temperature

*eg.c-0 60 80 +0 +00

08 TPT10- ?a&' steam PressureKg/Sq.cm

0.! 0.08 0.+ 0.06 0.+5

03 TT"108 ?a&' steam temperature*eg.c

+00 60 +10 50 +!0

10 TT"108 ?a&' ea; steam pressure11 TT"10!! :eta temp at turb&e 1st

stage *eg.c+65 +-5 +80

1! TT"10! :eta temp at turb&e 1st stage *eg.c

+65 +-5 +80

4


48/55

Tur$o'i#or(

01 TT500 ube % ta&; ee mm ,,0 +00 800 50/),0

8-0

0! TPT51ube % pressure t%ear&gs Kg/Sq.cm

1.5 1.1- 1.- 0.6!/0.62

!.0

0 TT"510 ube % temp at c%%er "/*eg.c

65 +0 -0 0 -5

0+ TT"511 ube % temp at c%%er ,/*eg.c

+5 +0 50 0 55

05 TPT50 #%&tr% % PressureKg/Sq.cm

1+ 1! 10 1-

06 TT"80+ #$ temp at "/ %4 %

c%%er *eg.c

0 !5 + !0 6

0- TT"805 #$ temp at ,/ %4 %c%%er1 *eg.c

5 !- 3 !5 +!

08 TT"806 #$ temp at ,/ %4 %c%%er! *eg.c

5 !- 3 !5 +!

03 TT"80- #$ temp at "/ %4 ?e&c%%er *eg.c

0 !5 + !0 6

10 TT"80- #$ temp at ,/ %4 ?e&c%%er1 *eg.c

5 0 3 !5 +1

11 TT"80- #$ temp at ,/ %4 ?e&c%%er1 *eg.c

5 0 3 !5 +1

1! TT"80-# #$ temp at ,/ %4 ?e&c%%er1 *eg.c

5 0 3 !5 +1

1 TT"80-* #$ temp at ,/ %4 ?e&c%%er1 *eg.c

5 0 3 !5 +1

1+ TSE!011Turb&e See' rate' rpm +300 +-00 58

+6,2 ,6)2

Turb&e See' 16@ rpm 816 Turb&e See' 35@ rpm +650

S.N Tag No De!"#$%#o& o' Tag No" Lo (# LLT"# HH;Trip15 TAE!011xa sh4t mm 0 0.+5 0.+5 -0.6, -

0.6,0.6,

16 TAE!01!xa sh4t mm 0 0.+5 0.+5 -0.6, -0.6,0.6,

45


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1- TT"!01 Turb&e bear&gtemperature > 1 *eg.c

60 110 1!0/120

18 TT"!0! Turb&e bear&gtemperature > ! *eg.c

60 110 1!0/120

13 TT"!0 Turb&e bear&g

temperature > *eg.c

60 110 1!0/12

0!0 TT"!0+ Turb&e bear&g

temperature > + *eg.c60 110 1!0/12

0!1 TT"!05 7/? p&%& 4r%&t bear&g

temp1 *eg.c100 1!0/12

0!! TT"!06 7/? p&%& rear bear&g

temp! *eg.c100 1!0/12

0! TT"!0- 7/? hee 4r%&t bear&g

temp *eg.c100 1!0/12

0

!+ TT"!08 7/? hee rear bear&gtemp+ *eg.c 100 1!0/120!5 TT"!03 ?e&erat%r 4r%&t bear&g

temp1 *eg.c-5 85/*,

!6 TT"!10 ?e&erat%r rear bear&gtemp! *eg.c

-5 85/*,

!- TVBT!01Turb&e 4r%&t sha4t bC=%rD%&ta mcr%&s

+5 30/90

!8 TVT!01Turb&e 4r%&t sha4t brCVertca mcr%&s

+5 30/90

!3 TVBT!0!Turb&e rear sha4t brC =%rmcr%&s

+5 30/90

0 TVT!0!Turb&e rear sha4t brCVertca mcr%&s

+5 30/90

1 TVBT!07? p&%& 4r%&t sha4t brC=%r mcr%&s

36 1+0/1+0

! TVT!07? p&%& 4rt sha4t brCVertca mcr%&s

36 1+0/1+0

TVBT!0+7? p&%& rear sha4t brC

=%r mcr%&s

36 1+0/1+

0+ TVT!0+7? p&%& rear sha4t brC

Vert mcr%&s36 1+0/1+

05 TVBT!057? hee 4r%&t sha4t brC

=%r mcr%&s1!0 180/1*

06 TVT!057? hee 4r%&t sha4t brC

Vert mcr%&s1!0 180/1*

0

4:


50/55

- TVBT!067? hee rear sha4t brC=%r mcr%&s

1!0 180/1*0

8 TVT!067? hee rear sha4t brCVert mcr%&s

1!0 180/1*0

3 TVBT!0-?e&erat%r 4r%&t sha4t br

h%r mcr%&s

100 160/16

0+0 TVT!0-?e&erat%r 4r%&t sha4t br

Vert mcr%&s100 160/16

0+1 TVBT!08?e&erat%r 7ear sha4t br

h%r mcr%&s100 160/16

0+! TVT!08?e&erat%r 7ear sha4t br

ert mcr%&s100 160/16

0+ TT"!5+ ?e& c%' ar temp 50++ TT"!55 ?e& c%' ar temp 50

+5 TT"!56 ?e& h%t ar temp --+6 TT"!51 ?e& $&'&g temp1 100 80 110 -0 1!0+- TT"!5! ?e& $&'&g temp! 100 80 110 -0 1!0+8 TT"!5 ?e& $&'&g temp 100 80 110 -0 1!0

+urrent# ; Winding

Te)perature#

01 ##T6!6

#$ Pump > 1 :%t%r curre&tCmp

0! ##T6!6

#$ Pump > ! :%t%r curre&tmp

0 ##T6!6#

#$ Pump > :%t%r curre&tmp

06 ##T6!5

#T 2a&1 :%t%r curre&t mp

0- ##T6!5

#T 2a&! :%t%r curre&t mp

08 ##T6!5#

#T 2a& :%t%r curre&t mp

03 ##T6-0 2P1 :%t%r curre&t mp10 ##T6-1 2P! :%t%r curre&t mp11 #EP m%t%r curre&t mp1! ,P m%t%r curre&t mp1 #,P m%t%r curre&t mp1+ F,P m%t%r curre&t mp15 E,P m%t%r curre&t mp

3(


51/55

S.N Tag No De!"#$%#o& o' Tag No" Lo (# LLT"# HH;Trip16 ,VE2 m%t%r curre&tC mp1- ?S#E2 m%t%r curre&t mp18 T?: m%t%r curre&t mp13 TT"+60 2P1 $&'&g

temperature1 *eg.c

35 1+0 110

!0 TT"+60 2P! $&'&gtemperature1 *eg.c

35 1+0 110

!1 TT"+61 2P1 $&'&gtemperature! *eg.c

35 1+0 110

!! TT"+61 2P! $&'&gtemperature! *eg.c

35 1+0 110

! TT"+6! 2P1 $&'&gtemperature *eg.c

35 1+0 110

!+ TT"+6! 2P! $&'&gtemperature *eg.c 35 1+0 110

!5 TT"+6 2P1 $&'&gtemperature+ *eg.c

35 1+0 110

!6 TT"+6 2P! $&'&gtemperature+ *eg.c

35 1+0 110

!- TT"+6+ 2P1 $&'&gtemperature5 *eg.c

35 1+0 110

!8 TT"+6+ 2P! $&'&gtemperature5 *eg.c

35 1+0 110

!3 TT"+65 2P1 $&'&gtemperature6 *eg.c

35 1+0 110

0 TT"+65 2P! $&'&gtemperature6 *eg.c

35 1+0 110

31


52/55

+O11,NI+ATION

#o avoi$ communication ga- among a!! the -ower -!ant sta"" the "o!!owing

stationar to be maintaine$ in a$$ition to the wa!>e ta!>ies an$ -hanes.

?- Line +!earance or) or #aet(-

@- co)p!aint regi#ter to enter a$nor)a!itie#-

). nstructions register.

4. 0og sheets "or each "ie!$.

3. 0og boo>s "or each "ie!$.

6. Running hours !og boo>.

. /oa! bagasse stoc> !og boo>.

5. /oa! ash ana!sis !og sheets.

:. Dai! &eneration consum-tion !og sheets !og boo>s.1(. +ater an$ steam ana!sis !og sheets.

Line +!earance or) or #aet(%

Be"ore $oing an wor> on running or stanb e9ui-ments in running or in shut

$own the res-ective maintenance -ersons shou!$ ta>e the 0ine /!earence "rom the

shi"t in charge8engineer.

#he shi"t in charge8engineer shou!$ un$erstan$ the wor> to be carrie$ out. " he

"ee!s the wor> can be carie$ out with out $isturbing the running o" the -!ant then he

shou!$ in "orm the !ine or e9ui-ment to be so!ate$ to the concerne$ "ie!$ o-erator.

A"ter the iso!ating the e9ui-ment8!ine the "ie!$ o-erator wi!! sign on the !ine c!earence

3*


53/55

"orm. A"ter ensuring the !ine 8e9ui-ment iso!ate$ the shi"t in charge8engineer con give

0ine /!earence to carrout the wor> to concerne$ maintenance $e-artment.

Beore #tarting the "or5 the )aintenance per#on #hou!d en#ure that the

ie!d operator < #hit in charge; engineer #igned on the L-+ or) and the

e2uip)ent i# i#o!ated-

A"ter com-!etion o" the wor> the maintenance -ersons has to return the 0./.

#he concerne$ o-erator shou!$ >ee- the e9ui-ment rea$ "or o-eration. #he

same is to be ensure$ b shi"t in charge8engineer.

" nee$e$ the trai! run o" the e9ui-ment8!ine to be carrie$ out in -resence o"

shi"t in charge8engineer maintenance -erson.

co)p!aint regi#ter to enter a$nor)a!itie#%

" an abnorma!ities observe$ in the sstem8e9ui-ment concerne$ o-erator shou!$

bring to the notice o" shi"t in charge8 engineer. #he shi"t in charge8engineer shou!$

chec> the e9ui-ment8sstem -arameters an$ the abnorma!it to be registere$ in the

com-!aint register an$ in"orm to the concerne$ $e-artment.

" the abnorma!it is emergenc then the maintenance -eo-!e shou!$ be ca!!e$imme$iate! an$ the same is to be in"orme$ to /.M.;'M


54/55

Each "ie!$ o-erator an$ $es> o-erator shou!$ enter the -arameters

-erio$ica!! in the !og sheet. #he !og sheet shou!$ be $u! signe$ b the shi"t in

charge in each shi"t.

Log $oo5# or each ie!d%

Each "ie!$ o-erator an$ $es> o-erator shou!$ enter a!! the events in the !og

boo> with time. #he !og boo>s shou!$ be $u! signe$ b the shi"t inc harge in each

shi"t.

Running hour# !og $oo5%

Ever $a in the / shi"t the shi"t in charge shou!$ enter the $a running hours

o" ever e9ui-ment in the register.

+oa! < $aga##e #toc5 !og $oo5%

A!! the coa! bagasse recei-ts an$ consum-tions to be entere$ in this !og boo>

shi"t wise b the shi"t in charge8engineer an$ avai!ab!e stoc> to be eva!uate$ $ai!.

+oa! < a#h ana!(#i# !og #heet#%

#he !og sheets to be "i!!e$ $ai! wise b 9ua!it contro! $e-artment an$ to be

sent to shi"t in charge.

Dai!( &eneration < con#u)ption !og #heet# < !og $oo5#%

Dai! in 1st shi"t the consum-tions o" a!! the e9ui-ments to be recor$e$ "or the

-revious $a. #he -revious $a tota! generation, tota! au%i!iar consum-tion, P0?,

average "re9uenc an$ -ercentage o" au%i!iar consum-tion to be recor$e$. #he

reasons "or an change in the generation consum-tion a!so to be recor$e$.

Water and #tea) ana!(#i# !og #heet#%

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#he DM -!ant chemist shou!$ enter the -erio$ica! water an$ steam ana!sis in

the !og sheets an$ the $u! signe$ !og sheets to be sent to shi"t in charge "or re"erence

an$ recor$ing.

97273716-20mw-Operation-Manual.doc

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