Hitachi Energy · Liquid cooled
6 MVA bidirectional power conversion system rated at 1550V DC with three independent DC inputs and liquid cooling in an IP65 enclosure. Available in three AC voltage variants (690V, 710V, 730V), designed for utility-scale BESS and DC-coupled hybrid systems with grid-forming capability and operation up to 4,000 m altitude.
| Nominal AC Voltage | 690 / 710 / 730 VAC |
| Rated AC Power @35°C | 5,376 / 5,534 / 5,688 kW/kVA |
| Rated AC Power @50°C | 4,839 / 4,981 / 5,118 kW/kVA |
| Max Output Current @35°C | 3 x 1,500 A |
| Total Current Demand Distortion (TDD) | <3% |
| Power Factor | Adjustable |
| SoC Voltage Range @Full Power | 987–1,500 / 1,015–1,500 / 1,044–1,500 Vdc |
| Max DC Voltage | 1,550 Vdc |
| Max Input Current | 3 x 2,000 A |
| Number of Separate DC Inputs | 3 |
| Withstand Current (without internal fuse) | 250 kA max available fault current |
| Withstand Current (with internal fuse) | 250 kA max available fault current |
| Max / Euro / CEC (V690) | 98.80% / 98.40% / 98.41% |
| Max / Euro / CEC (V710) | 98.82% / 98.44% / 98.44% |
| Max / Euro / CEC (V730) | 98.82% / 98.46% / 98.46% |
| AC Protection & Disconnect | AC circuit breaker |
| DC Protection & Disconnect | DC load break switch |
| AC & DC Overvoltage | Class II / Type 2 (optional Class I + II / Type 1) |
| Ground-Fault Monitoring | Yes |
| Insulation Monitoring | Yes |
| DC Input Fuse Protection | Optional |
| Dimensions (W x D x H) | 6,977 x 1,100 x 2,535 mm |
| Weight | ~8 t |
| Cooling | Liquid cooling system |
| IP Rating | IP65 |
| Operating Temperature | −25°C to +55°C (derating below −15°C and above 35°C) |
| Max Relative Humidity | 100% |
| Max Altitude | 4,000 m (derating above 1,000 m) |
| Storage Temperature (coolant filled) | −15°C to +65°C |
| Storage Temperature (without coolant) | −25°C to +65°C |
| Storage Humidity | 5% to 85% |
Hitachi Energy Ltd., established in 2020 as a joint venture between Hitachi and ABB and headquartered in Zurich, Switzerland, is a global power technology company with over 30 years of experience in battery energy storage. The company has delivered more than 10 GW of BESS powe...
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