HBXGN-12 ENVIRONMENTALLY FRIENDLY AIR INSULATED ACMETAL ENCLOSED SWITCHGEAR
OVERVIEW
The HBXGN-12 series environmentally friendly gas insulated metal enclosed switchger is a distribution switchgear that uses a vacuum arc extinguishingchamber for arc extinguishing, with environmentaly friendly gas as the main insulation medium, a smal amount of solid insulation support, and noencapsulation in the main circuit. During normal operation. it is at zero gauge pressure or micro positive pressure (aas box pressure s 0.02MPa), and itsinsulation capacity to around and between phases meets the air insulatlonreouirements at zero gauge pressure.
MODEL AND MEANING
NORMAL CONDITION
Environmental temperature. maximum temperature:+40°C, minimum temperature. -25°C , 24-hour average temperature:≤35 ℃
Environmental humidity: Maximum average relative humidity: 24-hour average s 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 bevond the normal operating environment, we can negotiate with our company in advance
STRUCTURAL CHARACTERISTICS
All live parts are sealed in an air box, which is welded with stainless steel and filed with 1.4 bar of dry ai. 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 interal fault causes a pressure increase, the explosion-proofnembrane bursts and releases internal pressure. And release the gas towards the rear to prevent iniury to the operators in front of the cabinet.
The switchaear has passed internal arc test.lAC-AFLR/20kA.1s
MAIN TECHNICAL PARAMETERS
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