High voltage switchgear refers to electrical appliances with a rated voltage of 1kV and above, and is mainly used to break and close conductive circuits. It is a high-voltage switch and its corresponding control, measurement, protection, adjustment device, accessories, housing and support and other ......

(1) The high voltage switchgear that has been put into operation on the power grid and is in standby state must be inspected regularly. Each unit shall make clear regulations on the time, frequency, and content of the inspection under various duty modes.

Dry-type Transformer in the process of power transmission can be converted electrical energy into high voltage current form, can reduce the loss of electricity in the transmission process, play a good role in energy saving.

(1) High voltage switchgear should be combined with normal inspections under normal circumstances; (2) According to the change of the operation mode, the key temperature measurement should be carried out under the following conditions;

The load switch is a kind of switching device between the circuit breaker and the isolating switch. It has a simple arc extinguishing device, which can cut off the rated load current and a certain overload current, but cannot cut off the short-circuit current.

Load switches can be divided into high-voltage load switches and low-voltage load switches according to the voltage used.