The secondary turns of which of the following transformers is always kept closed for _ transformer.
Correct answer: C. Current
- A. Power
- B. Voltage
- C. Current
- D. Step down
Explanation
The secondary turns of a current transformer are always kept closed, forming a closed loop, and this allows the secondary current to continuously flow through the measuring or protection devices. The other options are incorrect because they either don't involve current measurements or do not have a specific requirement to keep the secondary turns closed.
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