I. Overview

The JHHWX-12-630-25 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 operates at zero gauge pressure or slightly positive pressure (the air pressure in the gas box is ≤ 0.02MPa), and its relative to ground and phase to phase insulation capabilities meet the requirements of air insulation under zero gauge pressure.

Environmentally friendly gas insulated metal enclosed switchgear is a commonly used three-phase AC intelligent environmentally friendly gas insulated cabinet, and is widely used in various complete sets of switchgear. With the concentration of population in the domestic power market, it must be matched, and the demand for environmentally friendly gas insulated switchgear will also increase with the development of the market; The market potential still needs to be developed. At the same time, due to the integration of multiple functions such as data collection and control, data processing and storage, online monitoring of switchgear, and advanced analysis, the product intelligently monitors and manages the distribution network online, ensuring that it operates in a safe, reliable, high-quality, and efficient optimal state. It realizes remote monitoring, control, and management of the power system distribution network, meeting the needs of power grid optimization, electricity safety, energy management, and energy conservation and consumption reduction; The system can be widely applied in intelligent power distribution fields such as transportation, factories, hospitals, schools, buildings, residential communities, and commercial office buildings.

II. Operating Environment

-- Ambient Temperature

Maximum Temperature: +40°C, Minimum Temperature: -25°C, 24-hour Average Temperature: ≤35°C

-- Ambient Humidity

Maximum Average Relative Humidity: 24-hour average value ≤ 95%, Monthly average value: ≤ 90%

Altitude: ≤ 1500 meters (for standard type, under standard inflation pressure), > 1500 meters requires special instructions for special conditions:

III. Implementation Standard

--GB 3906-2006 3.6kV~40.5kV AC enclosed metal switchgear and control equipment

--GB1984-2014 High voltage AC circuit breakers GB1985-2015 High voltage AC isolating switches and grounding switches

--GB/T11022-2011 Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards

--GB 3804-20043.6kV~40.5kV High Voltage AC Load Switches

--GB16926-2009 AC High Voltage Load Switch Fuse Combination Apparatus

--GB311.1-2012 Insulation Coordination for High Voltage Transmission and Transformation Equipment

--IEC298 AC metal enclosed switchgear and control equipment with rated voltage above 1kV to 72.5kV (inclusive)