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20151210 One question per day

2015-12-10View Original

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20151210 Daily Question: The rewards are as follows: 1-3 points for participation, 5 points for a correct answer, and 8-10 points for a correct answer accompanied by an analysis. There are various methods for protecting electric motors; among the following four options, only one represents a protection measure that is installed selectively. It is: ( ). A. Short-circuit protection B. Ground fault protection C. Overload protection D. Loss of synchronization protection for synchronous motors. The answer is C
Reply #22015-12-10
There are many types of protection for AC motors. Among the following four options, only one is a type of protection that is installed selectively; it is: (d). A. Short-circuit protection B. Ground fault protection C. Overload protection D. Loss of synchronization protection for synchronous motors
Reply #32015-12-10
There are various types of protection for AC motors. Among the following four options, only one represents a type of protection that is installed selectively; it is: (D).
Reply #42015-12-10
There are various types of protection for AC motors. Among the following four options, only one represents a type of protection that is installed selectively; it is: (D). A. Short-circuit protection B. Ground fault protection C. Overload protection D. Loss of synchronization protection for synchronous motors
Reply #52015-12-10
There are many types of protection for AC motors. Among the following four options, only one is a type of protection that is installed selectively; it is: (C). A. Short-circuit protection B. Ground fault protection C. Overload protection D. Loss of synchronization protection for synchronous motors
Reply #62015-12-10
There are many types of protection for AC motors. Among the following four options, only one is a type of protection that is installed selectively; it is: (C). A. Short-circuit protection B. Ground fault protection C. Overload protection D. Loss of synchronization protection for synchronous motors
Reply #72015-12-10
There are many types of protection for AC motors. Among the following four options, only one is a type of protection that is installed selectively; it is: (C). A. Short-circuit protection B. Ground fault protection C. Overload protection D. Loss of synchronization protection for synchronous motors

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Translated at 2026-07-21 01:09:55

Original: https://bbs.hcbbs.com/thread-1514069-1-1.html

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