Classification of High Voltage Switchgear
Dec 23, 2020
Removable type or handcart type (indicated by Y)
Indicates that the main electrical components in the cabinet (such as circuit breakers) are installed on the handcart that can be withdrawn. Because the handcart cabinet has good interchangeability, it can greatly improve the reliability of power supply. Commonly used handcart types There are: isolation handcart, metering handcart, circuit breaker handcart, PT handcart, capacitor handcart, and used handcart, such as KYN28A-12.
Fixed (represented by G)
It means that all electrical components in the cabinet (such as circuit breakers or load switches, etc.) are fixedly installed, and fixed switch cabinets are simple and economical, such as XGN2-10, GG-1A, etc.
(1) For indoor use (indicated by N); it can only be installed and used indoors, such as: KYN28A-12 and other switch cabinets;
(2) Used outdoors (indicated by W); it means that it can be installed and used outdoors, such as XLW and other switch cabinets.
Metal enclosed armored switchgear
Metal-enclosed armored switchgear (indicated by the letter K) main components (for example: circuit breakers, transformers, bus bars, etc.) are respectively installed in a metal-enclosed switchgear in a grounded compartment separated by a metal partition. Such as KYN28A-12 type high voltage switch cabinet.
Metal enclosed partition switchgear
The metal-enclosed partition switchgear (indicated by the letter J) is similar to the armored metal-enclosed switchgear. Its main electrical components are also installed in separate compartments, but have one or more non-metallic partitions that meet a certain degree of protection. board. Such as JYN2-12 type high voltage switch cabinet.
Metal enclosed box switchgear
Metal-enclosed box-type switchgear (indicated by the letter X) The shell of the switchgear is a metal-enclosed switchgear. Such as XGN2-12 type high voltage switch cabinet.
Open switchgear
Open switchgear, no protection level requirements, part of the shell is open switchgear. Such as GG-1A (F) high voltage switch cabinet
