【Daily Topic】【Electrical Edition 20170525】

2017-05-25View Original

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Participation reward: 2 Wealth. Correct reward: 6 Wealth. True or False question: A thermal relay can be used for both short-circuit protection and overload protection in a circuit. ( ) Wrong

Reply #22017-05-25

Thermal relays can be used in circuits for both short-circuit protection and overload protection. ( × )

Reply #32017-05-25

Wrong. Relays only have overload protection. The motor comprehensive protector can provide overload protection as well as phase loss protection. Short circuits are generally protected by circuit breakers or fuses.

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【Daily Topic】【Electrical Edition 20170525】

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