Ring Main Unit, Gas-Fired Switchgear, Solid-State Switchgear Series

HB-12 environmentally friendly gas insulated metal enclosed switchgear

HB-12 environmentally friendly gas insulated metal enclosed switchgear is a distribution switchgear that uses a vacuum interrupter to extinguish arcs, environmentally friendly gas as the main insulating medium, a small amount of solid insulating supports, the main circuit without any encapsulation, zero gauge pressure or slightly positive pressure during normal operation (air pressure in the air box ≤ 0.02MPa), and the relative to ground and phase insulation capabilities meet the air insulation requirements 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 the domestic population, the power market must be supported. As the market develops, the demand for environmentally friendly gas insulated switchgear will also increase; the market potential has yet to be developed. At the same time, because the product integrates multiple functions such as data collection and control, data processing and storage, online monitoring of switchgear and advanced analysis, it can carry out online intelligent monitoring and management of the distribution network, so that the distribution network can operate in a safe, reliable, high-quality and efficient state. It can realize remote monitoring, control and management of the power system distribution network and meet the needs of grid optimization, power consumption safety, power management, energy saving and consumption reduction; the system can also be widely used in transportation, factories, hospitals, schools, and buildings. Intelligent power distribution fields such as residential areas and commercial office buildings.

HB-12 environmentally friendly gas insulated metal enclosed switchgear is a distribution switchgear that uses a vacuum interrupter to extinguish arcs, environmentally friendly gas as the main insulating medium, a small amount of solid insulating supports, the main circuit without any encapsulation, zero gauge pressure or slightly positive pressure during normal operation (air pressure in the air box ≤ 0.02MPa), and the relative to ground and phase insulation capabilities meet the air insulation requirements under zero gauge pressure.

name C module F module √Module
Load switch Combination appliances Vacuum circuit breaker Isolating/grounding switch
Rated voltage 12
1min power frequency withstand voltage 42/48
Lightning impulse withstand voltage 75/85
Rated current 630 125* 630 630
Breaking capacity        
Closed loop breaking current 630      
Cable charging breaking current 135      
5% active load breaking current 31.5      
Ground fault interrupting current 200      
Short circuit breaking current   31.5* 25  
Rated transfer current   1500    
Select the maximum current of the fuse   125    
Short circuit making current 63 80* 25  
Short-time withstand current 25   25 25
short circuit duration 4   4 4
Mechanical life 5000 5000 10000 3000
gas pressure 0.025(20°℃)
annual leakage rate ≤0.05%
Arc extinguishing method Vacuum arc extinguishing
Protection level IP67/3X (air box/casing)

HB-12 environmentally friendly gas insulated metal enclosed switchgear is a distribution switchgear that uses a vacuum interrupter to extinguish arcs, environmentally friendly gas as the main insulating medium, a small amount of solid insulating supports, the main circuit without any encapsulation, zero gauge pressure or slightly positive pressure during normal operation (air pressure in the air box ≤ 0.02MPa), and the relative to ground and phase insulation capabilities meet the air insulation requirements under zero gauge pressure.

name C module F module √Module
Load switch Combination appliances Vacuum circuit breaker Isolating/grounding switch
Rated voltage 12
1min power frequency withstand voltage 42/48
Lightning impulse withstand voltage 75/85
Rated current 630 125* 630 630
Breaking capacity        
Closed loop breaking current 630      
Cable charging breaking current 135      
5% active load breaking current 31.5      
Ground fault interrupting current 200      
Short circuit breaking current   31.5* 25  
Rated transfer current   1500    
Select the maximum current of the fuse   125    
Short circuit making current 63 80* 25  
Short-time withstand current 25   25 25
short circuit duration 4   4 4
Mechanical life 5000 5000 10000 3000
gas pressure 0.025(20°℃)
annual leakage rate ≤0.05%
Arc extinguishing method Vacuum arc extinguishing
Protection level IP67/3X (air box/casing)

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