Introduction A limit switch detects the physical movement of an object by direct contact with that object. An example of a limit switch is the switch that detects the open position of a car door, automatically activating the cabin light when the door is opened. Remember that the “normal” state of a switch is the …
Introduction Motor protection safeguards the motor, the supply system and personnel from various operating conditions of the driven load, the supply system or the motor itself. Motor protection categories include — Overcurrent Protection –Overload Protection –Other Types of Protection. • The National Electrical Code requires that motors and their conductors be protected from both overcurrent …
Introduction All motors must have a control device to start and stop the motor called a motor controller.These motor controller plays a major role in industries. Motor Controller A motor controller is the actual device that energizes and de-energizes the circuit to the motor so that it can start and stop. • Motor controllers may …