For handling greater currents induction wattmeters are used in conjunction with______________?
Correct answer: B. current transformers
- A. potential transformers
- B. current transformers
- C. power transformers
- D. either of the above
- E. none of the above
Explanation
A current transformer reduces a large line current to a safe, proportional value for the wattmeter current coil. A potential transformer is used when the voltage is too high, not specifically when the current is large.
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