Introduction
This control circuit is a simple motor control.In this circuit all the equipment are earth protected by this every worker is protected and there is a no chance of current leakage.In this cir uit the control transformer is connected to earth and there will be no leakage remains in the transformer and transformer works properly.By using earth connection in transformer the losses of transformer reduces.
Explanation
This circuit is earth protected and there is a no chance electric shock to any living person.In this citcuit three overload relays are used to provide the protection to the motor.in any abnormal situation is created the relays operated and switch the power off automatically and the motor stop working.
Circuit Diagram
Uses
This type of control circuits are used in all kinds of industries, factories,and for house purposes.
