Isolating Switch - A Device That Acts As An Isolation Device In A Circuit

High-voltage disconnector is a switch device that is mainly used for "isolating power supply, switching operation, connecting and disconnecting low-current circuits" and has no arc extinguishing function. When the disconnector is in the open position, there is an insulation distance that meets the specified requirements and an obvious disconnection mark between the contacts; when in the closed position, it can carry the current under normal circuit conditions and the current under abnormal conditions (such as short circuit) within a specified time. It is generally used as High Voltage Disconnect Switch, that is, a disconnector with a rated voltage of more than 1kV. Its working principle and structure are relatively simple, but due to its large usage and high requirements for working reliability, it has a great impact on the design, establishment and safe operation of substations and power plants. The main feature of the disconnector is that it has no arc extinguishing ability and can only open and close the circuit without load current. The entry introduces the functions, characteristics, types, applications, error prevention improvements, maintenance, common problems, etc. of the disconnector.