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1、Drafted Checked Reviewed Approved Modification-BFANGCHENGGANGNUCLEARPOWER PLANT PHASE I (21000MW)文件编DOC. LMA-220VDCPOWERSUPPLYSYSTEM MANUAL CHAPTER 6 CONTROL工程Project文件类Document子项Sub-Item设计阶EngineeringSBDocument A: B:C:深圳中广核工程设计有限公司 NationalAgradeengineeringCertificationNO:NationalAgradeengineeringC

2、ertificationNO:内部编码Internal CP0905-DE-GN-This document is the property of CNPDC It must not be used、reproduced、transmitted or disclosed without the prior written permission of CNPDC 本文件之产权属于中广核工程设文文件种类LMA-220VDCLMA-220VDCPOWERSUPPLYSYSTEMMANUALCHAPTER6B版本记REVISION版日状编Drafted校Checked审Reviewed批Approve

3、d修改说Modification-AFirstFANGCHENGGANGNUCLEARPOWER PLANT PHASE I (21000MW)LMA-220VDCPOWERSYSTEMMANUALCHAPTER6 文件修改记版日章页修改范围及依AB2010-2011-8-FirstLMA-220VDCLMA-220VDCPOWERSUPPLYSYSTEMMANUALCHAPTER6B HYPERLINK l _TOC_250008 HYPERLINK l _TOC_250007 CONTROL HYPERLINK l _TOC_250006 LOGIC HYPERLINK l _TOC_25

4、0005 ANALOG HYPERLINK l _TOC_250004 COMPUTERIZEDCONTROLANDINFORMATIONAVAILABLETOTHE HYPERLINK l _TOC_250003 CONVENTIONALCONTROLANDINFORMATIONAVAILABLETOTHE HYPERLINK l _TOC_250002 HYPERLINK l _TOC_250001 POWERSUPPLYFAILURE HYPERLINK l _TOC_250000 LMA-220VDCLMA-220VDCPOWERSUPPLYSYSTEMMANUALCHAPTER6Re

5、vControl ManualcontrolsareprovidedforsystemThe lists of control and instrumentation components are given in the charger and DC switchboard operation and maintenance manuals.Logic SeeAnalogSeeComputerizedcontrolandinformationavailabletotheComputerizedalarm See appendix.Computerizedcontrolandinformati

6、on See appendix.ConventionalcontrolandinformationavailabletotheConventionalalarm Not applicable.Conventionalcontrolandinformation Not applicable.Operating Aftertheinitialstartup,nonormaloperationisrequired. The following are adjusted on initial startup:groundfaultdetectoralarmvoltagesensingrelaycurr

7、entsensingrelayThissystemisnormallyalwaysinOperating When the “switchboard fault” alarm appears, the operator shall locally determine the nature of the fault and perform the appropriate intervention.PowersupplyfailureLossof48VDCcontrolpowerKICTrippingofthetransformersupplybreakerbytheautomaticdevice

8、220V AC switchboard-mounted annunciator light operation. 6.7.2LossofLLE380VACpowersupplycausesnonoperationofLMAswitchboard. Loss of LNE 220V AC power supply causes non operation of the portable signal generator used for ground fault location.Lossof220VAC(on003JA)causesnonoperationofthegroundfaultloc

9、ation. Recovery of 48V DC restores KIC inputs, annuciator light operation and transformer supply breaker tripping ability by the automatic device circuit.RecoveryofLNE220VACrestoresoperationoftheportablesignalgenerator. Recovery of 380VAC restores operation of LMA switchboard.LMA-220VDCLMA-220VDCPOWERSUPPLYSYSTEMMANUALCHAPTER6Rev6.4.1ComputerizedIDLCD001XKGROUNDY-A-OUTGO.BREAKERY-A-XLMAOVERCURRENTY-A-X