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What is Power Reading Issues for 11KV Motors about?

The power readings from the motor relay are incorrect because it is calculating power using the primary voltage rather than the secondary 11kV voltage supplied to the motors. [1] Dividing the power reading by 3 or changing the voltage transformer ratio will not solve the issue because the power factor angle is still incorrect. [2] The best solution is to install a voltage transformer on the secondary side to directly measure the 11kV supply voltage. However, this requires additional outdoor construction and

Author

Mahemoud Moustafa

Language

EN