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Hitachi AN032404-1 Rev. A Application Note

Sizing three-phase inverters for single-phase power applications.

Application Note:

Sizing Three-Phase

Inverters for Single-Phase

Power Applications

Please refer also to the

Inverter Instruction Manual

AN032404-1

Rev. A

Hitachi America, Ltd.

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Application Note: Sizing Three-Phase Inverters for Single-Phase Power Applications Please refer also to the Inverter Instruction Manual AN032404-1 Rev. A Hitachi America, Ltd. © 2007 Hitachi America, Ltd.
Page 2

So upsizing the drive ameliorates the ripple problem as well. The rule of thumb Hitachi recommends is to start with the 3-phase motor’s nameplate full load amperage (FLA) rating and double it. Then select an inverter with this doubled continuous current rating.