After the vacuum circuit breaker trolley in the high voltage switch cabinet is closed at the test position, the trolley circuit breaker cannot enter the working position. (Prevent closing with load)

According to the classification of voltage levels, AC1000V and below are usually called low-voltage switchgear (such as PGL, GGD, GCK, GBD, MNS, etc.), and AC1000V and above are called high-voltage switchgear (such as GG-1A, XGN15, KYN48, etc.), and sometimes The voltage of AC10kV in the high voltag......

Use the handle to push the handcart from the test position (opening state) to the working position (the working position indicator is on and the test position indicator is off).

It can not only be used alone, but also can be integrated with various relay protection devices, so that the switchgear is not much more expensive The technical level and added value have been greatly improved.

As the main power equipment in the power transmission process in the power grid, the transformer is one of the most common devices in the field of electrical complete equipment.

On October 16, under the monitoring of the third party personnel, Ninghai special transformer co., Ltd. carried out various factory type tests on 110kV oil-immersed power transfor