GN30-12 rotary indoor high voltage isolation switch is a rotary touch knife type of new isolation switch, the main structure is in the three-phase under the base frame, the next two planes, fixed two groups of crepe and contact, By rotating the touch knife, in order to achieve the switch off the closing.
GN30-12D switch is in the GN30-12 type switch on the basis of the increase with the form of grounding knife to meet the needs of different power systems, the design of this product can take the space behind the small insulation capacity. Easy to install the adjustment, its performance in line with GB1985-89 "AC high voltage disconnector and grounding switch" requirements for rated voltage 12 kV AC 50Hz and below indoor power system, as in the case of voltage without load, Circuit use. Can be used with high-voltage switchgear, can also be used alone.
◎ use of environmental conditions
Altitude does not exceed 1000m;
Ambient air temperature; upper limit + 40 ° C; lower limit -10 ° C;
Relative humidity; daily average of not more than 95%, the average monthly maximum of 90%;
Tyrants intensity of not more than 8 degrees;
No serious dust chemical corrosive and explosive substances in the place;
There is no frequent severe vibration of the place.