A basic principle, it is mainly used for the two power supply common power supply and standby power supply (for example) to switch between automatic. Its working principle is based on the monitoring of the state of the power supply. When the common power supply fails, such as low voltage, power failure, etc., the automatic transfer switch can quickly detect this change, and through the built-in control circuit to drive the switch mechanism, the load from the common power line to the standby power line, to ensure the continuous power supply of the load (such as important electrical equipment, lighting system, etc.). Second, the main structure of contact system: this is a key part of the automatic transfer switch, is responsible for the on and off the circuit. Contacts are generally made of high-quality conductive materials, such as silver alloys, to ensure good electrical conductivity and arc resistance. The shape and structural design of the contact will affect the on-off ability and service life of the switch. Arc extinguishing device: when the switch on the breaker operation,

can produce arc between contact. The function of the arc extinguishing device is to extinguish the arc quickly to avoid the damage of the arc to the contact and the interference to the surrounding electrical equipment. Common arc-extinguishing methods include the use of arc-extinguishing grid, magnetic blow-out and so on.

Operating mechanism: The operating mechanism is the component that realizes the switch action. It can be electromagnetic, electric motor or spring energy storage. Electromagnetic operating mechanism relies on electromagnetic force to drive the contact action, the action speed is fast; The motor operating mechanism drives the switch of contacts through the rotation of the motor, which can provide greater operating force; The spring energy storage operating mechanism stores energy in advance and releases energy to complete the operation when it is necessary to switch. Controller: a controller is the “brain” automatic switch, it is responsible for monitoring the power state. Can monitor the voltage, frequency and other parameters of the power supply, through the analysis of these parameters to determine whether the power supply is normal. Once an abnormal condition is detected, the controller sends a signal to initiate the switching operation.

Web:www.cnshuyi.com;
Tel/Fax: 0086-577-62840011
WhatsApp: 008613355775769