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The third protection circuit to prevent short circuit when the motor is started in reverse
Source: InternetPublisher:吃掉星星 Keywords: protection circuit motor short circuit main circuit Updated: 2021/01/23
This circuit adds a contactor KM3, and connects its main contact in series to the main circuit . It will operate regardless of
the forward or reverse contactor action. In this way, during the forward and reverse conversion process, four power outages are required ( Main circuit
and control loop (two places each), which can effectively extinguish the arc and prevent the occurrence of phase short circuit .
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