The single-phase system and the three-phase system differ due to the voltage they pass through.
• Single-phase system = the voltage between phase and neutral is 230V
• Three-phase system = the voltage is 400V between the 2 phases and 230V between the phase and neutral.
The UPS (uninterruptible power supplies) Three-phase | Single-phase are connected to the three-phase electrical network (400V) and provide single-phase 230V output to the connected loads.

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AEC UPS | Power Supply

Founded way back in 1968, the AEC Group, Allis Electric Co. Ltd, is a public company listed on the Taipei Stock Exchange since 1994.

The AEC group has specialized for more than 50 years in the production of UPS for the protection of the power supply of industrial plants.


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