船舶系泊试验大纲教材.docx
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船舶系泊试验大纲教材.docx
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船舶系泊试验大纲教材
TESTPROGRAMONBOARDOFELECTRICPOWERSYSTEM
1.General
1.1Attendants
Thetestshallbeconductedincompliancewiththeprogramandwitnessedbypresentedofthesurveyorofclassificationsocietyandtheowner’srepresentative,unlessotherwisementioned.
1.2Testingcondition
Duringtesting,alltheelectricequipmentshallbekeptitsserviceconditionasnearaspracticable,andgaugesfixedontheinstrumentboardofequipmentshallgenerallybeusedforcheckingandtakingarecord.Eachtestshallbecarriedoutwhenthevesselismooredalongsidethebuilder’swharf,unlessotherwisementioned.
TESTPROGRAM
1ElectricPowerSystem
1.1MaindieselgeneratorsandEmergencygenerator
1.1.1General
Duringtestonboard,inprinciplewaterresistanceshallbeusedastestload(PF=1.0)exceptatseatrialorotherwisenoted.
1.1.2Insulationresistancetest
Beforeandafterthegeneratorheatrunningtest,insulationresistancebetweenthefollowingpointsshallbemeasuredbyuseofaDC500VMeggeranditshallbeconfirmedthattheresistanceis1mega-ohmorabove:
-Winding–ship’shull
-Spaceheater–ship’shull
TheresultsofabovetestarerecordedinattachedsheetsE-1,2,3,4onpages15,16,17,18.
1.1.3Heatruntest(Continuousloadtest)
Increasegeneratorloadgraduallyfromzerotofullandthenrunthegeneratorcontinuouslyfor60minutesunderfullloadcondition,15minutesunder110%fullloadatlast.
Measurethefollowingparametersandrecordthedataduringthistest.
Output(kW),Frequency(Hz),Voltage(V),Current(A),
Temperature(℃)ofAir,Frame,Stator,BearingandEngineroom.
Itshallbeconfirmedthatthegeneratorisfreefromanabnormalriseoftemperatureateachpart.
Thetemperatureshallbemeasuredbyusingofthermometermethod.
ThemeasurementpointsandresultsofmeasurementarerecordedinattachedsheetsE-5,6,7,8,onpages19,20,21,22.
1.1.4Voltagecharacteristictest(Loadcharacteristictest)
Atafullratedload,thevoltageandfrequencyshallbesettoaratedpointandmeasurementshallbetakenonthevoltageandfrequencyateachpointwiththeloadchangedasfollows:
100%-75%-50%-25%-0-25%-50%-75%-100%
Duringtheabovemeasurement,itshallbeconfirmedthatavoltagevariationateachpointiswithin±2.5%(11.3V)forMaingenerator,±3.5%(15.8V)forEm’cygenerator.
TheresultsofthemeasurementarerecordedinattachedsheetsE-9,10,11,12onpages23,24,25,26.
1.1.5Speedvariationtest(Voltageregulatingandgovernortest)
Thisshallmeasurethemomentaryvariationandthepermanentvariationofvoltageandfrequencywhenthefollowingloadissuddenlytakenofforon:
Maingen.:
Takenoff100%-0
Takenon0-45%-80%-100%
Em’cygen.:
Takenoff100%-0
Takenon0-75%-100%
Itshallbeconfirmedthattheregulationiswithinthefollowings:
Instantaneousfrequency:
±10%(±6Hz)
Settledfrequency:
±5%(±3Hz)(stabilizedtime5s)
Instantaneousvoltage:
-15%~+20%(-67.5V~+90V)
Settledvoltage:
Maingen:
±2.5%(±11.3V)
Em’cygen:
±3.5%(±15.8V)
TheresultsoftheabovetestarerecordedinattachedsheetsE-13,14,15,16onpages27,28,29,30.
1.1.6Parallelrunningtest(Maingeneratorsonly)
-Aftertwogeneratorsaremanuallyoperatedinparallel,firstregulatetheloadforeachgeneratorto75%ratedasinitialpointofparalleling,thentheloadofprovisionalbasegeneratorischangedas:
75%-50%-25%-50%-75%-100%-75%
Ineachpointoftheaboveloads,theeffectivepower,voltageandfrequencyshallbemeasuredandtheloadsharingistobesuchthattheactiveloadonanygeneratorisnottodifferfromitsproportionateshareofthetotalloadbymorethan15%.Themaximumvalueis600kWx15%=90kW.
Theloadsharingtestshallbecarriedoutbetweenanytwo
(2)generatorsetsofthree(3),itscombinedgroupswillbe“No.1-No.2”Gen-sets,“No.2-No.3”Gen-setsand“No.3-No.1”Gen-sets.
TheresultsofabovetestarerecordedinattachedsheetsE-17,18,19onpages31,32,33.
Loadtransfertest(maingensetsonly)
Suchtestshouldbecarriedoutundertheconditionofregulatingtheloadofeachgeneratorto50%ratedoutputapproximately,totallyhavingthree(3)combinedgroupsandtestingsequenceasfollowing:
1)No.1&No.2Gen-setsinparallelrunning
ManuallysynchronizingoperatingtheNo.3Gen-set,thenmakingtheNo.1Gen-setoutofservice.
2)No.2&No.3Gen-setsinparallelrunning
ManuallysynchronizingoperatingtheNo.1Gen-set,thenmakingtheNo.2Gen-setoutofservice.
3)No.3&No.1Gen-setsinparallelrunning
ManuallysynchronizingoperatingtheNo.2Gen-set,thenmakingtheNo.3Gen-setoutofservice.
TheresultsofabovearerecordedinattachedsheetE-20onpage34.
1.2Generatorprotectingdevice
Forthefollowinggeneratorprotectingdevices,onlythedemonstrationcarriedout,becausedeviceshavebeenexactlyadjustedatmanufacturer’sworkingshop.
Settingmarksaretobeconfirmed.
1.2.1Reversepowerprotection(maingensetsonly)
Eachmaingeneratorshallbegivenareversepowerprotectionasmentionedbelowanditshallbeconfirmedthatthereversepowerrelay(orequaldevice)startstoworkproperlyandtheaircircuitbreakeropensatasettime.
Settingofreversepower:
-10%ofrating(60kW)
Delaytime10±2sec
Thisdemonstrationshallbeconductedonceandtimefromreversepowersupplytobreakeropeningshallbemeasuredforreference.
TheresultsoftheabovetestarerecordedinattachedsheetE-21onpage35.
1.2.2Over-currentprotection
Thisdemonstrationshallbecarriedoutintheconditionthatnoloadisappliedontheprimemover.
Theover-currentrelay(orequaldevice)ateachphaseofthegeneratorshallbefedwithcurrentsasmentionedbelowanditshallbeconfirmedthattherelay(orequaldevice)startstoworkproperlyandtheaircircuitbreakeropensatasettingtime.
Settingvalue:
Maingen:
962Ax110%x120%=1270A
Delaytime20±3sec
Em’cygen:
192x110%x120%=253A
Delaytime20±3sec
Thisdemonstrationshallbeconductedonceandtimefromover-currentsupplytobreakeropeningshallbemeasuredforreference.
TheresultsoftheabovetestarerecordedinattachedsheetE-22onpage35.
1.2.3Preferentialtriptest(MSBonly)
Thisdemonstrationshallbecarriedoutintheconditionthatnoloadisappliedontheprimemover.
Theover-currentrelay(orequaldevice)forpreferentialtripforeachmaingeneratorshallbefedwithcurrentsasmentionedbelowanditshallbeconfirmedthatrelay(orequaldevice)startstoworkproperlyandtheover-currentrelay(orequaldevice)closesinasettimetoletthe1stand2ndstepnonessentialconsumer’sbreakerstripbyshunttripdevices.
Itshallbeconfirmedthatthealarmlampsforpreferentialtripareliton.
Settingofcurrent:
For1stStep:
962x120%=1152A
Delaytime10±2s
For2ndStep:
963x120%=1152A
Delaytime15±2s
Thisdemonstrationshallbecarriedoutonceandtimefromovercurrentsupplytorelevantbreakerstrippingshallbemeasuredforreference.
TheresultsoftheabovetestarerecordedinattachedsheetE-23onpages36,37.
1.2.4Undervoltagetriptest
TheACB(aircircuitbreaker)shalltripwhenbusbarvoltagedropto180V~300V,
TheresultsoftheabovearerecordedinattachedsheetE-24onpage38.
1.3Interlockingtestofshoreconnection
InterlockingtestofshoreconnectionistoconfirmthereliabilityofinterlockingcircuitbetweenMCCBofshoreconnectionandACBofeachgenerator.
Thatis,theshorepowercircuitbreakerontheMSBcannotbeswitchedonifanyoneACBofthree(3)generatorsisinclosepositionorviceversa,anyoneACBofthree(3)generatorscannotbeswitchedoniftheshorepowercircuitbreakerontheMSBisincloseposition.
TheresultsoftheabovetestarerecordedinattachedsheetE-25onpage38.
1.4
Autostarttestforem’cygeneratorandinterlockingtestbetweenMSBandESB
Thistestshallconfirmthereliabilityofthefollowingfunctions:
1)Simulateaconditionofblack-outonbusbar,thetiebreakerbetweenMSBandESBwillundervoltagetrip,theemergencygeneratorwillbestartedautomaticallyandsupplypowertoESBwithin45seconds.
2)Afterrecoveryofpowersupplyonbusbar,atfirsttheACBofem’cygeneratortobetripped,thenthebustiebreakerbetweenMSBandESBtobeclosed,andtheem’cygeneratortobestoppedafteradelaytime.Theprocessisalsotobeautomatic.
TheresultsoftheabovetestarerecordedinattachedsheetE-26onpage38.
1.5Powermanagementsystem
Thetestmentionedbelowshallbecarriedoutinautomodefortherelativegenerators.
1.5.1Autostarttestofstandbygeneratorafterblack-out
Incaseofblack-out,thestandbydieselgeneratorsetshouldbestartedimmediatelyandconnectedtothenetworkautomatically.Thetestshallbecarriedoutaccordingtothefollowingprocedure:
No.
AutostartstandbyD/Gafterblack-out
1
-RunNo.1D/Gonthebusbar
-SelectNo.2D/Gasfirstprioritystandbyset
-SimulateNo.1D/Gshutdownsignal,thenNo.1D/Gshouldbetrippedimmediatelyandblack-outonthebusbar
-No.2D/Gshouldbeautomaticallystartedandconnectedtothebusbarafterestablisheditsvoltageandrecoverpowersupply
2
-RunNo.2D/Gonthebusbar
-SelectNo.3D/Gasfirstprioritystandbyset
-SimulateNo.2D/Gshutdownsignal,thenNo.2D/Gshouldbetrippedimmediatelyandblack-outonthebusbar
-No.3D/Gshouldbeautomaticallystartedandconnectedtothebusbarafterestablisheditsvoltageandrecoverpowersupply
3
-RunNo.3D/Gonthebusbar
-SelectNo.1D/Gasfirstprioritystandbyset
-Simulate
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