1、S Drafted Checked ReviewedApprovedBCHENGGANG NUCLEARPLANT PHASE I (21000MW)文件編碼 DOC. S Drafted Checked ReviewedApprovedBCHENGGANG NUCLEARPLANT PHASE I (21000MW)文件編碼 DOC. LAA - 220V DCERSUPPLYFORLNE INVERTER SYSTEM MANUAL CHAPTER 5 OPERATING PARAMETERSProject文件類Sub-ItemEngineeringSBA:B:C:國(guó)家甲級(jí)工咨甲中廣核工程

2、設(shè) CertificationNO:NationalAgradeengineeringCertificationNO:編ernal CP0905-DE-GN-is the property of CNPDC It must not be used、reproduced、transmitted or disclosed without the prior written permis of CNPDC 本文件之 屬于中廣核工程設(shè)計(jì) 。未獲本公司 ，任何人不得擅自使用、 、傳遞或 該文件。LAA-220VERSUPPLYFORLNEINVERTERSYSTEMRev CHAPTER5OPERATI

3、NG版版日狀編Drafted 校Checked 審Reviewed 批Approved 修改說明Modification-ALAA-220VERSUPPLYFORLNEINVERTERSYSTEMRev CHAPTER5OPERATING版版日狀編Drafted 校Checked 審Reviewed 批Approved 修改說明Modification-ALAA-220VERSUPPLYFORLNEINVERTERSYSTEMRev CHAPTER5OPERATINGLAA-220VERSUPPLYFORLNEINVERTERSYSTEMRev CHAPTER5OPERATINGPLANTPH

4、ASEILAA-220V ER SUPPLY LNEINVERTERSYSTEMMANUAL CHAPTER 5 OPERATING CHINALAA-220VERSUPPLYFORLNEINVERTERSYSTEMRev LAA-220VERSUPPLYFORLNEINVERTERSYSTEMRev CHAPTER5OPERATING文件修版日章頁(yè)修改范圍及依據(jù)ABLAA-220V ERSUPPLYFORLNELAA-220V ERSUPPLYFORLNEINVERTERSYSTEMRev 5OPERATING5OPERATING NORMAL STARTUPANDNORMALOTHERCO

5、NTROLLAA-220VERSUPPLYBCHAPTER5OPERATINGNormalLAA-220VERSUPPLYBCHAPTER5OPERATINGNormalParticularsteady 5.3.1LossofACheautomaticmode,chargeroperationisasFloat The charger is set to float. Voltage at charger terminals is maained constanfloat voltage setting.Recharge/equalizeThe charger is set to rechar

6、ge/equalize. Voltage at charger terminals is marecharge/equalize voltage setting.Manual mode(withloadVoltageisadjustedmanuallybyusingapotentiometer(locatedonthecharger regulation pred circuit board). This mode overrides the other three modes (automatic,float,recharge/equalize).Voltageadjustment rang

7、e is0 to289 V.The operator monitors charging current by using anothotentiometer(alsolocated on the charger regulation pred circuit board) and maains ia value notexceeding0.03 Under normal operation, the charger, fed from two 380V AC switchboards (one of them fed from the emergency-d380VACswitchboard

8、)providetheDCloadin parallel and float the battery or recharge it as nesary. The battery is only required to handle transient loWhen one charger failed or loss of ACer,allofloadscanbetransferredto another charger automatically.The charger is set to automatic. The charger is operatedhefloatmodeand vo

9、ltage is maained constanfloat voltage setting.OPERATING LAA- 220V SUPPLYB5Startupandnormal5.5OtherNotNot- After loss of ACer,LAA- 220V SUPPLYB5Startupandnormal5.5OtherNotNot- After loss of ACer,thechargerisautomaticallyrestoredtothepre-transient operating mode-float.Andcan be orecharge/equalize mode

10、erformance and characteristics are not affected by a short-circuit. Selective tripis provided by time-delayed magnetic releasehebatteryand ing breakers.Chargerover-currentprotectioncircuitryactuatesafterabout10ms. Short-circuit downstream of an outgoing breaker.The outgoing breaker is tripped faster

11、n the battery fuse and the chargerbreaker by its magnetic release depends on the short circuit current and the set pooftheShort-circuitofbusThe battery fuse acts. Theerrupting times depend on the fuse current/time he automatically and chargeringbreakerswillnormallynot The charger delivers a higher current for a short time. The charger is protected via ernalfusesandshort-circuitmonitoring.Theshortcircuitmonitoringswitchedoffthe affected Short-circuitonAC