HXGN15-12(SF6）type single unit ac metal closed ring network switch equipment (hereinafter referred to as ring network cabinet) is a new generation of high-voltage electrical products that we have successfully designed and developed by ourselves in accordance with the requirements of domestic agricultural electricity and urban network transformation by introducing foreign advanced technology.All the technical performance indicators meet iec62271-2003:2003 and GB3906 standards.
Main switch, operating mechanism and components of ring network cabinet adopt original parts of ABB or fl-12/24 switch equipment assembled and produced domestically with imported parts. It can also be equipped with original HAD/US SF6a circuit breaker of ABB or vd4-s vacuum circuit breaker according to user needs. The operation mode can be divided into manual and electric.
The cabinet is made by numerical control machine after machining, the protection grade reaches IP3X, and it has reliable mechanical interlock and anti-misoperation function.This product has the characteristics of small size, light weight, beautiful appearance, easy operation, long life, high parameters, no pollution, little maintenance and so on.
Hxgn15-12 (SF6) single unit ac metal closed ring network switching equipment, suitable for the ac 50Hz, 12kV power network, as the acceptance and distribution of electrical energy.
The cabinet body of ring network adopts 2 "nm thick aluminum coating board (or cold-rolled plate sprayed with plastic) to form, and there are two pressure release holes behind the cabinet, one for the cable room and the other for the load switch/bus room. This structure can maximize the safety of people and the reliability of operation equipment.
Bus room bus room is located at the top of the cabinet and connected with adjacent switch cabinets.
The load switch is an independent unit, filled with SF6 gas.
3. About 75% of the cable room space is used for cable connection, fuse, grounding switch and CT and PT installation.
4. Mechanism compartment and interlock
The cell contains operator mechanism and mechanism interlocks as well as position indication, auxiliary contact, trip coil, live display and interlocks.
5 relay box
The relay box is on top of the cabinet and is optional.Chambers are used to install special devices such as meters, relays, and motor units.
A circuit breaker (SD6 or vacuum) can be placed under the load switch.
1. Top pressure release
The above is used to release the gas pressure caused by arc accidents in bus and load switch rooms.
2 pressure release at the bottom
The following is used to release the gas pressure caused by the arc accident in the cable cubicle.
Main bus rated current/fuse maximum rated current
Rated short-term current tolerance of main circuit and ground circuit
Rated peak withstand current of main circuit and ground solid circuit
Rated short-circuit closing current of main circuit and ground circuit