What Are The Classifications Of High Voltage Distribution Cabinets

Press the circuit breaker

According to the installation method of the circuit breaker, it is divided into removable type (handcart type) and fixed type

(1) Removable type or handcart type (represented by Y): It means that the main electrical components (such as: circuit breakers) in the cabinet are installed on the drawable handcart, because the handcart cabinet has a good interchangeability Therefore, the reliability of power supply can be greatly improved. The commonly used handcart types are: isolation handcart, metering handcart, circuit breaker handcart, PT handcart, capacitor handcart and used handcart.

(2) Fixed type (denoted by G): Indicates that all electrical components in the cabinet (such as circuit breakers or load switches, etc.) are fixedly installed, and the fixed switchgear is relatively simple and economical.

By location

Divided into indoor and outdoor by installation location

(1) For indoor use (represented by N); it can only be installed and used indoors.

(2) For outdoor use (represented by W); indicates that it can be installed and used outdoors.

According to the cabinet structure

According to the cabinet structure, it can be divided into four categories: metal-enclosed armored switchgear, metal-enclosed partition switchgear, metal-enclosed box-type switchgear and open switchgear.

(1) The main components of the metal-enclosed armored switchgear (represented by the letter K) (such as circuit breakers, transformers, busbars, etc.) switchgear.

(2) The metal-enclosed partition switchgear (represented by the letter J) is similar to the armored metal-enclosed switchgear, and its main electrical components are also installed in separate compartments, but with one or more Non-metallic baffles.

(3) Metal-enclosed box-type switchgear (represented by the letter X) The switchgear shell is a metal-enclosed switchgear.

(4) Open switchgear, no protection level requirements, part of the shell is open switchgear.