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7/11/15

Shut down idle unload generat

e

colour of generator , outlet circuit breaker ,

P？ Q？ U？……

Experimental Task 5——distinguish

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7/11/15

unload generat

e

Outage idle

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7/11/15

Hdro!generator "tarting Up

Fall down brake damper

Main shaft seal water is work

Cooling system is work

Deate air shroud

!ithdraw peristalsis de"i#e

 $urn on high%pressure oil lifting de"i#e

 $urn on thrust bearing pump and turbine guide bearinpump

&ull out ser"omotor lo#k

Open up guide "ane' rotation speed in#reased

unload generateShut down idle

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Che#k e)#itationsystem

&ut into e)#itationsystem

*n#rease of "oltage

Hdro!generator "tarting Up

unload generateShut down idle

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Hdro!generator "tarting Up

+enerator syn#hroni,ation

-d.ust a#ti"e power and rea#ti"epower

unload generateShut down idle

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unloadgenerate

Hdro!generator "hut #o$n

redu#e a#ti"e power and rea#ti"e powerto ,ero

generator split

turn o( e)#itationredu#e of "oltage

idle Shut down

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Hdro!generator "hut #o$n

 $urn on high%pressure oil lifting de"i#e

Close guide "ane' rotation speed de#reased

 .a#k up brake damper02 rated speed3&ut into ser"omotor lo#kafter rotation speed is 3

 $urn o( high%pressure oil lifting de"i#e

 $urn o( thrust bearing pump and turbine guidebearing pump

 $urn o( main shaft seal water' inate air shroud

 $urn o( #ooling system' fall down brake damper

 $urn on eristalsis de"i#e

unloadgenerate idle Shut down

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dro!generator "hut #o$n%electrical accident&

+enerator will lost part of its loada#ti"e load andrea#ti"e load3

O"er speed

magnetic field circuit breaker

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'(er "peed

alternating!current acti(e po$er of load

main shaft

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aising *oltage +rom ero

After close 801

Turn on excitationsystem

Synchronization by5011

To a(oid rela protection

fault operation

caused b magneti-ing inrush

Self syn#hroni,ation

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Operation of Unit

•

 $his system use the way of uasisyn#hroni,ation

  to put 6*$ into the +8*D9

• Change State of 6nit

  Start up /Shutdown

• Mode: manual /auto

• $he auto mode has already introdu#ed in thelesson of last time

• $oday * will introdu#e the manual mode ofshutdown generator or starting%up the unit9

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Shutdown the unit in manualway• 1 swit#h the s#reen to the unit #onne#tion

• redu#e a#ti"e power and rea#ti"e power under the"alue of 0M!

•  ;y inputting the set "alue of a#ti"e power orrea#ti"e power

• $hen #li#k the button of power regulation to thestate of allowing9

• 0 #li#k the i#on of +C;9 Choose the operation of

O&

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Shutdown the unit in manualway• > swit#h the s#reen to e)#itation regulation

#abinet

•  swit#h the operation mode in to lo#al by#li#k the hand button *n the top right #orner

• $hen #li#k the button of work state toremo"e the e)#itation

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Shutdown the unit in manualway

•

5 swit#h the s#reen to au)iliary e?uipmentmonitoring

• Cli#k the button to startup the high%pressureoil lifting pumps9

• Or swit#h the s#reen to high%pressure oillifting #ontrol #abinets' #hange the #ontrolmode to lo#al' then #li#k the startup button tostart the pumps9

• $hen #he#k high%pressure oil pump starting%up normally9

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Shutdown the unit in manualway•

@ swit#h the s#reen to speed go"ernor #ontrol#abinet

• Change the operation mode to lo#al

• Change the #ontrol mode to manual

• $he related pilot lamp is lighting on• $hen operate the handle to de#rease the set "alue

of guide "ane opening until to ,ero

• Aook at the #hange of speed9

 

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Shutdown the unit in manualway

•

7 monitoring the speed of de#reasing untilto 152 rated speed9

• $hen swit#h the s#reen to au)iliarye?uipment monitoring9

• *nput the brake damper

• B until the speed de#rease to near ,ero

• 8emo"e the brake damper

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Shutdown the unit in manualway

•

stop high oil pressure pumps• put in the Ser"omotor lo#k

• swit#h the s#reen to the unit #onne#tion

•

  on the right• 1 *nput the air shroud

•

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Shutdown the unit in manualway

•

11 input the dust absorbing de"i#e• Swit#h s#reen to the unit brake dust

absorbing de"i#e #ontrol bo)9

• 10 stop thrust bearing e)ternal #ir#ulationoil pump

• 1= stop water guide e)ternal #ir#ulation oilpump

• Operation of step 10 and step 1= is in thes#reen of au)iliary e?uipment monitoring9

Sh d h i i l

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Shutdown the unit in manualway•

1> e)it $e#hni#al water supply system• Swit#h the s#reen to the te#hni#al water supply

system

• Close the "al"e of 0F1599

• represents the number of 6*$9• 15 input ,ero speed dete#ting de"i#e9

• $E6S' all steps of Shutdown the unit is #ompleted9

• $hen' we will study the steps of Startup the 6nit inmanual way9

S h U i i l

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Startup the Unit in manualway

• 1 #he#king work before startup

•

State of +C;' related isolator and groudswit#h• For the -ssist e?uipment of unit :

• $he -C/DC power supply is input' all kinds of thesignals or meter show right9

• -lternate Current/ Dire#t Current

• Fast *ntake +ate system has no faults

• ;rake damper is in downfall situation

• State of the unit is in outage9•

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Startup the Unit in manualway• 0 #he#king startup #onditions

•Swit#h the s#reen to the generator on#ondition

• Che#king it whether or not satisfy thestartup #ondition

• = #he#king ;rake damper is in downfallsituation

• *f not' swit#h the s#reen to the Hnumber

unit air system GgureI

• Cli#k ;rake damper i#on' the #hooseHlower antrum e)haust I and Hupper

antrum aeration I

St t th U it i l

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Startup the Unit in manualway• > input oil fog absorbing de"i#e

•

5 e)it number 1 and 0 ,ero speed dete#tingde"i#e9

• Swit#h the s#reen to au)iliary e?uipmentmonitoring9

  @ remo"e air shroud

• swit#h the s#reen to the Hnumber unit airsystem GgureI

• 7 input Main shaft seal water;y openning the"al"e of 0F713

• *nput unit main te#hni#al water supply

• swit#h the s#reen to the te#hni#al water supply

system

St t th U it i l

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Startup the Unit in manualway• B startup water guide e)ternal #ir#le oil

pump• startup thrust e)ternal #ir#le oil pump

• *n lo#al manual way or operate on theAC6 s#reen9

• 1 startup the high pressure oil pump9

•

  pull out the Ser"omotor lo#k of unit•   #he#king the the high pressure oil pump

works normally

St t th U it i l

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Startup the Unit in manualway• 11 swit#h the s#reen to speed go"ernor

#ontrol #abinet• Change the operation mode to lo#al

• Change the #ontrol mode to manual

•

 $he related pilot lamp is lighting on• $hen operate the handle to in#rease the

set "alue of idle guide "ane

•

Aook at the #hange of speed9

• 10 stop the high pressure oil pump9

St t th U it i l

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Startup the Unit in manualway• 1= swit#h the s#reen to e)#itation

regulation #abinet•  swit#h the operation mode in to lo#al by

#li#k the hand button *n the top right #orner

• $hen swit#h the #ontrol mode to manual

• Set the referen#e "oltage a little "alue

• Cli#k the button to #hange the e)#itationwork state to input state9

• $hen in#rease the referen#e "oltage stepby step9

• Aook at stator "oltage of the unit9

St t th U it i l

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Startup the Unit in manualway• 1> uasi syn#hroni,ation and #ombined to the

gird

•  until the unit "oltage in#rease to the rated"oltage

• Swit#h the operation mode from lo#al to remote

•

swit#h the s#reen to the unit #onne#tion• Cli#k the i#ons of B +C;9

• Choose the order of syn#hroni,ation #losing tostartup syn#hroni,ation de"i#e

• 6ntil syn#hroni,ation #ondition is satisGed

• +C; is #losed' state of unit is generate9

• $E6S' all steps of startup the unit is #ompleted9