The main feature of the DISCONNECT SWITCH is that it has no arc extinguishing capability, which means that it cannot be used to break load current or short circuit current, and is only suitable for certain switching operations that do not produce a strong arc.
DISCONNECT SWITCH is a switching device used to disconnect power supply, reverse switch operation, and connect and disconnect small current circuits. It does not have an arc extinguishing function. When the isolation switch is in the sub-position, there is an insulation distance between the contacts that meets the specified requirements and an obvious disconnect mark; In the close position, it can carry the current under normal loop conditions and the current under abnormal conditions (such as short circuit) within a specified time. This kind of switching equipment is generally used as a high voltage isolation switch, that is, the rated voltage of the isolation switch above 1kV, its own working principle and structure is relatively simple, but due to the large use and high reliability requirements, the design, establishment and safe operation of the substation and power plant are greatly affected.
The DISCONNECT SWITCH is mainly composed of conductive part, insulating part and operating mechanism three parts, the structure is relatively simple, easy to maintain and repair.
convenient operation : the operation mode is diverse, can be manually operated, can also be electric operation, improve the convenience and safety of operation.
The conductive part is made of materials with high conductivity, and the insulating part is made of materials with high insulation properties to ensure the stable operation of the switch under high pressure environment. The design of the operating mechanism is also fully considered reliability, such as the use of sealed structure to prevent dust and moisture from entering, extending the service life of the equipment.
The safety performance is fully considered in the design, such as setting obvious disconnect indication, grounding switch and so on. The off indicator can display the status of the switch intuitively, which is convenient for the operator to judge; When the grounding switch is turned off, the high voltage part can be grounded to prevent personal injury caused by misoperation.
Widely used in all aspects of power system, such as power plants, substations, transmission lines and so on. It can be used for isolating power supply, switching circuit, protection equipment, etc., with high practicability.




The advantages of DISCONNECT SWITCH include good isolation performance, high reliability, easy operation, compact structure, and wide application range.
good isolation performance : The isolation switch can effectively isolate the powered device, ensure the personal safety of the operator, and ensure that other devices are not affected.
high reliability : The isolation switch adopts a reliable mechanical structure and electrical control system to ensure long-term stable operation.
Easy to operate : The operation of the isolation switch is very simple and convenient, requiring no special skills and knowledge.
compact : The isolation switch is very compact, takes up little space, and is easy to install.
wide range of application : The isolation switch can be applied to a variety of different types of power systems, has high versatility.