The duration of sudden snort-circuit test on a synchronous motor is usually about_____________?
Correct answer: C. one second
- A. one hour
- B. one minute
- C. one second
- D. none of the above
Explanation
A sudden short-circuit test records rapidly changing transient and subtransient currents, so it is kept very brief to prevent excessive heating and mechanical stress. Its duration is typically about one second.
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