engineering recuitment UPMRC JE 2024 Mock Test Electrical and Electronics Measurements Measurement of Power
In the two-wattmeter method of 3ϕ power measurement, if the phase sequence of the supply is reversed:
1
one of the meters will show a negative reading
2
the meters will not read
3
there won't be a change in meter readings
4
the reading of wattmeters will be interchanged