HBXGN-12 ENVIRONMENTALLY FRIENDLY AIR INSULATED ACMETAL ENCLOSED SWITCHGEAR

The HBXGN-12 series environmentally friendly gas insulated metal enclosed switchgear is a distribution switchgear that uses a vacuum arc extinguishing chamber for arc extinguishing, with environmentally friendly gas as the main insulation medium, a small amount of solid insulation support, and no encapsulation in the main circuit.

During normal operation, it is at zero gauge pressure or micro positive pressure (as box pressure is 0.02MPa), and its insulation capacity to around and between phases meets the air insulation requirements at zero gauge pressure.

Environmental temperature: maximum temperature: +40°C, minimum temperature: -25°C, 24-hour average temperature: ≤35°C

Environmental humidity: Maximum average relative humidity: 24-hour average ≤ 95%, monthly average ≤ 90%

Altitude: ≤1500 meters (conventional type, under standard inflation pressure), special instructions are required for >1500 meters

Special conditions: For special operating conditions beyond the normal operating environment, we can negotiate with our company in advance

All live parts are sealed in an air box, which is welded with stainless steel and filled with 1.4 bar of dry air. The protection level of the air box reaches IP67.

Install a pressure gauge in the gas box, which can monitor the gas pressure in real time.

An explosion-proof membrane is installed at the bottom of the gas box. When an internal fault causes a pressure increase, the explosion-proof membrane bursts and releases internal pressure. The gas is released towards the rear to prevent injury to the operators in front of the cabinet.

The switchgear has passed internal arc test: IAC-AFLR/20kA.1s