tactor
Important components in automatic control systems
Contactors, electrical appliances used to make and break AC, DC main circuit and large capacity control circuit at a distance and frequently. Its main control object is the motor, and it can also be used to control electric heating equipment, electric lighting, welding machines and capacitor banks and other electric loads. Contactors are divided into AC contactors (voltage AC) and DC contactors (voltage DC), which are used in power, distribution and electricity. In electrical engineering, because the AC and DC main circuit can be quickly cut off and can be frequently connected to the large current control (up to 800A) circuit device, so often used in the motor as a control object, can also be used to control factory equipment, electric heaters, working machines and various power units and other power loads, contactor can not only be connected and cut off the circuit, It also has low voltage release protection. Contactor control capacity is large, suitable for frequent operation and remote control, is one of the important components in automatic control system
Contactor (English :Contactor) refers to the use of coil current flow to generate a magnetic field, so that the contact is closed, in order to control the load of electrical appliances. Contactors are divided into AC contactors (voltage AC) and DC contactors (voltage DC), which are used in power, distribution and electricity. Contactor in a broad sense refers to the use of coil flow current to generate a magnetic field in industrial electricity, so that the contact is closed to achieve control of the load electrical appliances.