shutdown or startup the unit(定)
TRANSCRIPT
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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