Battery Charger

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  • Topic: Battery, Trickle charging, Rectifier
  • Pages : 6 (1462 words )
  • Download(s) : 175
  • Published : December 19, 2012
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RELIABLE SOLUTIONS in POWER ELECTRONICS

RDAT SERIES

Power Management Instruments

BATTERY CHARGER / DC RECTIFIER

PMI / GESS / KARMET GROUP COMPANIES

DC CHARGER / RECTIFIER

BATTERY CHARGER / DC RECTIFIER
RDA / RDAT AUTOMATION TYPE SERIES
The rectifier is SCR controlled AC/DC rectifier with input isolation transformer and with automatic constant voltage and constant current ability. It comes with 6 Pulse or 12 pulse design options depending on user requirements. The advantages of employing 12 pulse rectifier in industrial UPS systems are to have lower THDi (0.9) as well as to secure redundancy since 12 pulse rectifiers are designed with one delta and one star connected transformers, so the unit itself behaves as two redundant rectifiers by its nature. Output current, battery current, boost and Float Charge Voltages are adjustable on the user-friendly control panel. Detailed alarm indicators help you to monitor all alarms from the front panel and monitor the auxiliary contacts from the MIMIC diagram. On LCD panel, all key parameters can be set, and real time base events and failures can be tracked remotely via RS 232 / RS 485 port or Modbus. 12 pUlsE RECTIFIER CURREnT WAVE

HIGH PROTECTION
FULLY CONTROLLED THRYSTOR RECTIFIER MODULE

6 pUlsE RECTIFIER CURREnT WAVE (DElTA-DElTA ConnECTIon)

6 pUlsE RECTIFIER CURREnT WAVE (DElTA-sTAR ConnECTIon)

ComplETE IsolATIon
GESS DC Chargers are fully isolated since an isolation transformer is placed in between the input and output and because the DC current is controlled by a DC current module. Therefore, the load is always safe even at high input voltage and congested mains conditions. In addition, the failure risk is minimized as semi-conductors are used for the rectifier. Standard L-C filters at the output maintain safe charging of the battery groups.

2

DC CHARGER / RECTIFIER

STANDART FEATURES
AdjustableTimerforBoostCharging •AdjustableBoostandFloatChargeVoltages •AutomaticBoostChargeSelectionaccordingto boost / float current set value •AdjustableRectifierOutputCurrentandBattery Charge Current •LCDDisplayforDCLoad/BatteryVoltage,DC Load / Battery Current , Input AC Voltage / Line Current / Frequency •EventHistoryforallElectricalvaluesandfailures •AutomaticandManuelBatteryTest •Boostinhibitfacilityforinterlockredundantapplication •OutputFilterInductorandDCLonglifeCapacitor •ElectronicOver/UnderVoltage,OverCurrentand Short Circuit Protections •IsolatedOutputbyInputTransformerandoutput halleffect current module •ParallelRedundantOperation •BoostandFloatdroppercontroloutputforNi-Cd and Lead Acid Battery •InputFilterandinputsurgeVoltageprotection •InternalOverTemperatureprotection •TemperatureCompensationforBattery •LowBatteryIndicationandAlarmcontacts •RectifierFailureIndicationandAlarmcontacts •RectifierOverVoltageIndicationandAlarmcontacts •OverTemperatureIndicationandAlarmcontacts •LineFailureIndicationandAlarmcontacts •InputMCBIndicationandAlarmcontacts •LoadMCBIndicationandAlarmcontacts •BatteryMCBIndicationandAlarmcontacts •Earth Fault Indication and Alarm contacts •ReverseBatteryConnectionProtectionResetButton •RS-232communication

OPTIONS
RS 485 / Modbus communication Silicon Dropper Module For Load Output (Load voltage output ± 5 %) RectifierandBatteryGroupwiththesamecabinent LVD Deep Discharge Battery Protection contactor

PROTECTIONS

The input and output of the charger are protected against improper use and line disturbances electronically. Input and output can be switched by circuit breakers individually. It has self-protection against over temperature. The alarm contacts can be used for external system in the case of any anomaly. The output is fully isolated from the AC line input. The Charger has a modular design to provide service and maintenance...
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