GN30-12 type rotary indoor high voltage isolating switch is a new type of touch rotating knife type isolating switch, the main structure in three-phase chassis of the upper and lower two plane, fixed two set of insulator and contact, by rotating contactor, so as to realize the switch of switching.
The use of environmental conditions .
1.No more than altitude of 1000 meters.
2.Ambient air temperature: From -25 to +40.
3.Air relative humidity:Daily average no greater than 95%;Monthly average no greater than 90%.
4.Amplitude:Seismic intensity not exceed degree 8.
5.Installation place: No fire, explosion, chemical corrosion and sharp shakes.
Item | Model and specification | |||||
GN30-12/400-12.5 | GN30-12/630-20 | GN30-12/1000-31.5 | GN30-12/1250-31.5 | GN30-12/(1600-3150)-40 | ||
GN30-12D/400-12.5 | GN30-12D/630-20 | GN30-12D/1000-31.5 | GN30-12D/1250-31.5 | GN30-120/(1600-3150)-40 | ||
Rated voltage(kV) | 12 | |||||
Rated current(A) | 400 | 630 | 1000 | 1250 | 1600-3150 | |
Rated short-time withstand current(kA) | 12.5 | 20 | 31.5 | 40 | ||
Rated short-circuit duration(s) | 4 | |||||
Rated peak withstand current(kA) | 31.5 | 50 | 80 | 100 | ||
Rated insulating level | Rated 1min. PF | phase to phase/ to earth: 42, across open contacts: 49 | ||||
withstand voltage(kV) | ||||||
Lightning impulse | phase to phase/ to earth: 75, across open contacts: 85 | |||||
withstand voltage(kV) |
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