In a low power factor wattmeter the compensating coil is connected_______________?
Correct answer: C. in series with pressure coil
- A. in series with current coil
- B. in parallel with current coil
- C. in series with pressure coil
- D. in parallel with pressure coil
Explanation
The compensating coil is connected in series with the pressure coil so that its magnetic effect compensates for the pressure-coil inductance and reduces phase-angle error. It is not connected across either main coil.
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