The potential coil is connected across Y and B phases. The wattmeter measures
A. Active power in R phase
B. Active power of Y phase
C. Reactive power of R phase
D. Power proportional to 3 phase power if the load is balanced
Answer:C
The potential coil is connected across Y and B phases. The wattmeter measures
A. Active power in R phase B. Active power of Y phase C. Reactive power of R phase D. Power proportional to 3 phase power if the load is balanced