Physics · Electrical Measuring Instruments
To accurately measure the total energy in a three-phase system (whether balanced or unbalanced), a three-phase energy meter is designed such that:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Separate current coils but a common potential coil are used for all phases
- 2Two or three driving elements act on a common moving system to produce a total torque proportional to overall power✓
- 3Each phase operates with an independent disc and register mechanism
- 4A single driving element alternately connects to each phase through a switching circuit
Correct answer
Two or three driving elements act on a common moving system to produce a total torque proportional to overall power
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