建筑材料采购合同范本[1]

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1、there?Afterignition,combustionshouldfocusitsattentiononwhat?Reducingboilerhotlossmeasures?DC-whatarethemaincharacteristicsoftheboiler?BoilersteamafterBaoBiwenhow?whenshutdowntocontrolsteamdrumwalltemperaturedifference?Fromarunstandpoint,whatarethemainmeasurest

2、oreducecoalconsumptionforpowersupply?Talkabouthowtocontrolthewaterlevel?Generatoraftersplitting,6KVwhytopromptlyexitthestandbypowerswitch?Whythecurrenttransformersecondarysideintheoperationarenotallowedtoopen?Whysynchronousgeneratorexcitationcircuitofthedegaus

3、singswitchcanbechangedintoalivelybreaker?Generatorstep-upprocess,whytherotorandstatorcurrentstomonitor?Whyarerotoronepointgroundproneto2ndafterground?Try380Vdiscussedfollowingthegroundingofauxiliarypowersystem,wiringforthree-phasefive-limbterminalofPTsecondary

4、voltagechange?Generatorincompletephaseoperationprincipleiswhat?Yn,d11(Y0/-11)connectionofgenerator-transformersystems,generatoropen-phaserunninganyhelp?Whytoinstall100%statorgroundingprotectionforlargegenerator?Whydoesnotallowrunningsecondaryshortcircuit?Gener

5、atorexcitation,excited,whatistheoftheoverexcitationlimit?Generatorlossofexcitationintherunning,whatistheimpactonthesystemandthegeneratoritself?Anti-cuozhongonthepreventionofexcitationsystemofgeneratorcausedbyfaultwhatdamage?trydiscussingwhatarethemeasuresofimp

6、rovingpowersystemdynamicstability?Whatisaswitchingoperationoftheelectricalequipment?maincontentswitchingoperationofpowerplantsandpowersystemsarethere?Trydiscussingmalignantelectricmisoperation,whichmisusepersonal,mostoftheequipment?Switchservicepowerfastcuttin

7、gdeviceinseveralways?inthealternatetotheState,thestandbypowerswitchrefusedtodealwith?Trydiscussingswitchingoperationsshouldfocusonpreventingmisoperationaccident?Newoperationoraftermajorrepairoftransformerswhytest?TrydiscussingstepsmeasuredwithaMeggerinsulation

8、resistanceofelectricalequipment?LumethodisusedtofindDCgroundingconsiderationarewhat?whentherearetwopointgroundingwiththepolarityshouldbe...1.600MWsupercriticalsupplementaryquestion