KGN/Z master switch level monitor

The master switch is mainly used to close and disconnect control circuits, to issue commands or be used for program control, to achieve control of power transmission and production machinery. Therefore, it is a component of human-machine dialogue. Due to its specialized ability to send commands or signals, it is called a "master electrical appliance" or "master switch". The main types include buttons, position switches, universal transfer switches, master controllers, and other master switches such as proximity switches, foot switches, cross switches, signal lights, etc. One type is the stroke driven by direct contact with mechanical stroke as the input signal; The other type is a switch that uses electromagnetic signals (non-contact) as input action signals. One common one is the travel switch, which uses the collision of production machinery moving parts to make its contacts move to achieve the connection or disconnection of the control circuit, achieving a certain control purpose. Usually, such switches are used to limit the position or stroke of mechanical motion, causing the moving machinery to automatically stop, reverse, change speed, or automatically move back and forth at a certain position or stroke^.The controller is used to change the wiring of the main circuit or excitation circuit, and can also change the resistance value connected to the circuit to control the starting and speed regulation of the motor. In the field of hydropower plants, it controls the opening of the guide vanes.