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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