Kehua Tech BSC 100 – 500K-A Energy Storage Converter

Three-phase Energy Storage Converter (Isolated Type)

Product Features
High efficiency
• Integrated output isolation transformer
• With bidirectional converter to charge or discharge batteries
• Optional modes for charging, including constant current charging, equalized charging and floating charging

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Three-phase Energy Storage Converter (Isolated Type)
Power grid adaptability
• Meeting the smart grid design specification and allowing power grid dispatching
• Advanced islanding detection technology
• Reactive power compensation and other functions
• Off-Grid independent operation

System characteristics
• Completely isolation of batteries from the power grid
• Charging and discharging time setting for 12 segments, better for customer's on-site applications
• On/off grid switching time: general conditions
<200ms; zero transition can be achieved under specific conditions (external connection of SCR)
• Four periods of time (peak, flat, valley and sharp) price setting, flexible calculation of user profitability

Technical Specification

Items BCS100K-A BCS250K-A BCS500K-A

DC input

  • Max. DC voltage: 000Vdc
  • DC voltage range: 500Vdc~900Vdc
  • Max. DC current: 228A 566A 1125A
  • Auto buffering function: Yes

Grid-tied AC output

  • Rated AC output power: 100kW | 250kW | 500kW
  • Max. AC output power: 110kVA | 275kVA | 550kVA
  • Rated output voltage: 400Vac
  • Output voltage range: -15%~10% (settable)
  • Rated grid frequency: 50Hz (45Hz~55Hz settable)/60Hz (55Hz ~65Hz settable)
  • Max. output current: 159A | 397A | 794A
  • Adjustable power factor: >0.99 (at rated power)/1 (leading)~1 (lagging)
  • THDi: <3% (at rated power)

Off-grid AC output

  • Rated AC output voltage Output voltage precision: 400Vac 1%
  • Max. output current: 159A I 397A I 794A
  • THDu: <1% (linear load)
  • Rated output frequency: 50Hz /60Hz
  • Overloading capability: 110% overload
  • Max. output current: 159A | 397A | 794A
  • Adjustable power factor: >0.99 (at rated power)/1 (leading)~1 (lagging)
  • THDi: <3% (at rated power)


  • Max. efficiency: 96.40% | 97.20% 97.60%

General data

  • Isolation transformer: Yes
  • IP grade: IP20 (IP21 optional)
  • Operation temperature: -30,C ~65,C (>45,C derating)
  • Relative humidity: 0~95% (no condensation)
  • Cooling type: Intelligent forced air cooling
  • Dimensions (WxHxD): 800x1800x800mm | 1OOOx1950x800mm | 1400x1950x1000mm
  • Weight: 730kg | 1450kg | 2050kg
  • Altitude: 5000m (>3000m derating)
  • Display: Touch screen
  • Communication protocol: Modbus-RTU / Modbus-TCP
  • Communication interface: RS485 (standard)/ Ethernet (optional)

Specification indexes may be subject to changes without further notice.


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    Please take note that all pricing displayed on this website / webstore is inclusive of VAT. Stock levels and pricing are subject to change without prior notice. Images displayed are for illustrative purposes only. Please contact us on 031 023 1088 for any queries.