Answered by Patrick_Té (7470 pts) 2 years Ago
Change in cos phi with variable frequency drive
Hello, I want to know if it's okay to measure the cos phi (power factor) of a motor upstream of the inverter drive that feeds it. I have a 110kW-motor whose engine plate indicates a cos phi of 0.86 under 400V (power triangle). However when I used a power meter (that measures active, reactive a...