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Three-phase motor transistor time relay automatic time-limited commutation circuit
Source: InternetPublisher:newlandmark Updated: 2011/09/08
As shown in the figure, the time relay KT is a JJSB1 type pulsating transistor time relay. It has two time-adjustable contacts, normally open and normally closed. With the addition of an intermediate relay K, the circuit can realize automatic time limit and round-trip normal operation. , reverse operation.
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