product description:
Disconnector (commonly known as 'knife gate'), generally refers to the high-voltage isolation switch, that is rated voltage of 1kV and above the isolation switch, usually referred to as the isolation switch, is the most high-voltage switchgear electrical appliances, itself The working principle and structure is relatively simple, but because of the use of large, high reliability requirements, the substation, power plant design, the establishment and safe operation of the impact are larger.
 Features:
1. In the electrical equipment maintenance, to provide an electrical separation, and is a clearly visible disconnect point, to protect the personal safety of maintenance personnel.
2. Disconnector can not carry the load operation: can not carry the rated load or heavy load operation, can not be divided, load current and short circuit current, but there are arc chamber can carry small load and no load line operation.
3. General power transmission operation: first disconnector, after the circuit breaker or load switch; power operation: first disconnect the circuit breaker or load switch, and then disconnect the disconnector.
4. When used and other electrical equipment, its rated voltage, rated current, dynamic current, thermal current and so must meet the needs of the occasion.
The function of the disconnector is to disconnect the circuit without load current, so that the equipment and power supply has obvious disconnect point to ensure the safety of maintenance personnel, isolation switch does not have a special arc device can not cut off the load current and short circuit current, It is necessary to operate the disconnector in the circuit when the circuit breaker is disconnected from the circuit.