Quadruple semi-continuous casting machine speed control circuit

Circuit from the main circuit, trigger circuit, speed negative feedback, negative feedback differential voltage, current cut-off circuit, loss of field protection and other com

ponents. Since the motor power is small (1. lkW), so the use of single-phase circuits. Figure, BQM and BQTG are DC motor M and the tachometer generator TG field winding. They consist of variable Tz by the rectifier bridge voltage VC3 offers the exciting voltage. Master adjust potentiometer RP3, can change the motor speed.

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