Uninterruptible power systems are used in computer centers such as data centers.They are intended to protect load devices such as server equipment, data communication equipment and computers from power interruptions, and supply stable power.
A continuous inverter feed type UPS employs Hitachi's independent circuit technology to eliminate the need for an inverter transformer, improve overall efficiency, and enable the UPS to cope with 540 V class input/output systems.
Up to eight units can be connected in parallel, enabling them to flexibly cope with parallel redundancy systems of up to 4,000 kVA(50-540kVA).
| Loss occurring in the UPS was reduced by approx. 40%. | Achieved an overall efficiency of 95% (actual measured value 95.4%), the highest level in the industry. |
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| The equipment is compact and light. | |
| Uses long-life parts. | The number of spare parts is reduced, and also resources are saved. |
| Unit parallel system Built-in bypass circuit Parallel connection of UPS units |
Facilities can be easily expanded. Realization of overall UPS equipment space saving. |
This model reduce the loss approx. 42% from Hitachi's previous model, and realized an overall efficiency of approx. 95.4%(measured value).
The high efficiency of this UPS realizes a saving of energy, including that of air conditioning, of approximately 2.11 million yen each year in terms of the cost of electricity used.
Calculation of cost of electric power used (conditions)
Cost of electricity used : 13 (JPY/kW·h) , load (P) : 400(kVA), power factor (Pf) : 0.9
Efficiency (η) : Previous model 92% → New model 95% (24-hour operation 365 days a year)
Air condition energy consumption rate (C) : 2.0 (kW/kW)
This is a next-generation type UPS that realizes the module parallel concept.
It reduces the initial investment, and also enables the power supply capacity to be increased in accordance with the load (3-phase 10-40kVA, Single phase 8-32kVA).
This mini-UPS matches the server and storage device.
The series ranges from 1 to 8 kVA, enabling a power supply system to be constructed with emphasis on reliability and ease of use.
