Greetings All, In the book "Electric Motors and Control Techniques" a circuit is illustrated that is for the dynamic braking of a squirrel cage motor. This circuit discharges a capacitor through the field windings to slow the motor. The capacitor is connected across the AC power to the motor in series with a 50k resistor and a diode. I under stand why the diode is there. The resistor must be there to slow the rate at which the cap is charged. Is this done just to limit the current when the cap is charging? When the cap is discharged through the windings it is connected to the windings only and does not discharge through resistor. Thanks, Eric
- posted
10 years ago