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What is NEMA TP2?

NEMA TP2 defines how energy efficiency is measured. Typically, it uses a sinusoidal wave with no harmonics at unity (1.0) power factor at 35% load for 600 volt class units and 50% load for medium voltage units.

This regulation has been replaced by similar test standards described in DOE 2016 and NRCan 2019 regulations.

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