ESS PCS

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Willings, a leader in the photovoltaic power conversion systems market, will try to maintain
its front position as an energy technology leader, and to realize its value of new and renewable energy leading company.

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Reference Product Specification

Main Product

EL-B series

(250KW ~ 2000KW)

  • Application of selective control algorithms
  • Power module independent control type (250KW)
Performance of ESS PCS [Recent 3 years]
Year Performance[MW]
2020 59
2019 76
2018 112
Power[kW] 250, 500, 750, 1000, 1250, 1500, 1750, 2000
IP Rate Indoor(IP20)/Outdoor(IP44)
AC Spec. 3P4W 380Vac (≤ 500kW Class),
3P3W 340Vac (750kW Class ≤)
DC Spec. 650 ~ 1050Vdc
Reference Product Specification

EL-B series

(250KW ~ 2000KW)

  • Application of selective control algorithms
  • Power module(250KW) independent control type
Power[kW] 250, 500, 750, 1000, 1250, 1500, 1750, 2000
IP Rate Indoor(IP20)/Outdoor(IP44)
AC Spec 3P4W 380Vac (≤ 500kW Class), 3P3W 340Vac (750kW Class ≤)
DC Spec 650 ~ 1050Vdc
Max Efficiency / Euro Efficiency 98% ≤
Communication Option RS422*2, TCP/IP*1
View Details

EL-B series

(250KW ~ 2000KW)

Model Name EL-B250 EL-B500 EL-B750 EL-B1000 EL-B1250 EL-B1500 EL-B1750 EL-B2000
Power[kW] 250 450 750 1000 1250 1400 1750 2000
Maximum PV Voltage 1000Vdc
Input Operating Volt. Range 650Vdc ~ 1000Vdc
Max Input Current 390 775 1190 1550 1960 2325 2720 3100
AC Line Interface
Nominal Capacity 250 450 750 1000 1250 1400 1750 2000
Nominal Voltage 380(88% ~ 110%), 3ф4W 340(88% ~ 110%), 3ф3W
Maximum Line Current 480 862 1300 1723 2160 2585 3030 3448
Max Efficiency[DC-AC] > 98[%]
AC Current THD[THD] <5% Total, <3% Individual
Power Factor > 0.95
Operator Interface
Input Device LCD Touch
Communication Method RS-422(RS485) or TCP/IP for Computer Access / Control
Display Parameters AC Voltage, Current, Power / PV Voltage, Current, Power / Today, Total, Max kWh
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