XGN口-40.5 Box-type fixed AC metal-enclosed switchgear

Summary
XGN □-40.5 box type fixed AC metal enclosed switchgear is designed according to GB3906-200 3.6kV~40.5kVAC Metal Enclosed Switchgear and Control Equipment. Its shell complies with IP2X protection grade specified in GB 4208-2008.The switchgear is a three-phase AC 50Hz single bus and indoor complete set device with bus bypass system for receiving and distributing 35kV network power.

Environmental conditions
◇ Ambient temperature: upper limit+40C, lower limit-5℃;
◇ Relative humidity: the daily average value is not more than 85% (at+25 ℃);
◇ Seismic intensity: there is no violent vibration and turbulence, and the vertical inclination is not more than 5°;
◇ Environmental conditions: no explosion hazard.
◇ Altitude: no more than 1000m;
Note: Users can negotiate with our company when the above normal use conditions are exceeded.






Main structural features
XGN □-40.5 Box type fixed AC metal enclosed switchgear is of fixed structure, its basic skeleton is made of section steel and steel plate by bending and welding, and the cabinet shell has IP2X protection grade. The switchgear is mainly assembled from the front cabinet and the rear cabinet. Corresponding functional units are set up for different purposes. The electrified bodies in the cabinet are mainly air insulated. The insulation distance between each electrified body and the ground is not less than 300mm.
◆ Front cabinet
The front cabinet is equipped with main bus and bus disconnector room, circuit breaker room, relay room, etc. The main bus and bus disconnector room is above the cabinet, and the circuit breaker room is below the cabinet. The room is also equipped with current transformers. The two rooms are separated by insulating plates and connected by bus bushings. The relay is set in the middle of the front of the cabinet. There are 15 small bus terminals, and a two-wire cable channel is set. The terminal room is set in the lower left small door, which can install more than80 JH10 terminals. M12 grounding bolts are also set below the room for the grounding of the auxiliary circuit, and the right small door is the maintenance channel. Above the terminal room is the operation panel, which can be equipped with auxiliary switches.
◆ Rear cabinet
The rear cabinet is connected to the front cabinet with bolts. According to the customer's requirements, the cabinet can be equipped with bypass buses and disconnectors, and the overhead incoming and outgoing lines also pass through this phase. When the bypass bus is set, the overhead outgoing lines do not reach the safe height, so small additional cabinets or shielding nets need to be added. When the side bus is not set, the overhead incoming and outgoing lines can pass through the top of the rear cabinet. The cabinet can also be installed with voltage transformer arrester, and the interconnection bus and cable incoming and outgoing lines are installed in this cabinet. The back door is a double door structure. If the live display indicates that there is no power, the back door can be opened, and the main bus room and the rear cabinet are separated by partitions.