engineering recuitment UPCL AE (E&M) 2021 Mock Test Electrical and Electronics Measurements Measurement of Power
In a two-wattmeter method of measuring power in 3 phase system, one of the wattmeter reads negative, implying
1
Power flow is in reverse direction
2
Load is unbalanced
3
Wattmeter connection is failure
4
Power factor is less than 0.5