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PTC three-phase asynchronous motor protection circuit four

Source: InternetPublisher:奥特man123 Keywords: PTC protection circuit three-phase asynchronous motor motor protection Updated: 2021/02/26

5.<strong>PTC</strong><strong>Three-phase asynchronous motor</strong><strong>Protection circuit</strong>four.gif

The difference is that VTi and Vtz in this circuit use NPN
transistors. Thermistor Rt. ~Rt, using parallel type.

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