Technical FAQs

Ask a Question

I just installed a type ``P`` trip -unit and the same circuit is being monitored by a CM-2. Why is the CM-2 reading negative kVars while the trip unit is reading positive?

The CM-2 defaults to an alternative sign convention and the trip unit defaults to the IEEE standard.
Square D is moving all to the IEEE standard so it is recommended to change the CM-2 and Power Meters kVar convention to IEEE

CTA-ID : 9738
Was this helpful?
What can we do to improve the information ?