EK Technologies

Direct On Line semi-automatic Starting forward and reversed rotation Direct on line starting is a method generally used to start three phase induction motors with power less than or equal to 10KW. Circuit diagram of direct on line starting: The circuit diagram is divided into the the Power Circuit and Control circuit shown below. Operating principle: When the fuse isolator is closed, an action on the start push button S2 energises the contactor KM1 which closes the main contacts of the contactor, closes its hold on contact, opens the interlock on kM2 (so that KM2 should not be energized) and closes the open contact of KM1 to which the lamp H1 is connected. The motor rotates in the forward direction and the lamp H1 shines which indicates the motor is running in the forward direction. To reverse the direction of rotation of the motor, the motor must first be stopped by pressing S1. For reverse rotation, an action on the reverse push button S3 e