Brake Motor

Brake Motor : 

Brake Motor is combination of three phase Squirrel -Cage Induction Motor with Electro-Magnetic Disc Brake (A.C.) when power is switched off with ordinary motor, the Rotating part will stopped after some time but if brake motor is used rotating mass will stop Instantaneously.

• The electromagnetic brake is consists of liner plates (Brake Disc) with square hole at the center. One corresponding piece of square hub is supplied with the brake. This hub is keyed to the motor shaft and the liner plate is free on this hub.
• Normally liner plate is gripped between two discs with the help of spring pressure. They work on 415 Volt A.C. When the current is supplied on the brake, one disc is attracted by electromagnet against pressure and the liner plate is released. Thus the brakes are off.
• This creates an air gap between the liner plate and Magnet plate. The motor shaft is then released from braking to  run freely.
• When the voltage to the coil is shut off (the power is turned off) ,the Magnet plate is pressed against the Liner- plate by the spring  force to stop the motor shaft.