Disconnector 12kv 24kv 36kv GN30-12 indoor rotary isolation switch
product detail
Product Description
Product Description
GN30-12 indoor rotary high-voltage isolation switch is a new type of rotary switch-type isolation switch. Its main structure is to fix two sets of insulators and contacts on the upper and lower planes of the three-phase common bottom. Touch the knife to switch the switch. GN30-12D indoor rotary high-voltage isolation switch is based on the GN30-12 type indoor rotary high-voltage isolation switch based on the addition of a knife, can meet the needs of different power systems.
Product feature
1. Scientific design and innovative structure.
2. Contacting points distribute on two planes, small operating moment, and release pressure to small and easy adjustment.
3. Improved driving and conducting part.
4. Column moving contact that can decrease operating strength and ensure reliability of circuit conduction.
Service Conditions:
1. Altitude: 1000m;
2. Ambient temperature: -25 ~+40 ;
3. Relative humidity: daily average 95 , monthly average 90 ;
4. Earthquake intensity: 8 degree;
5. Applicable occasions should free from inflammables, explosives, corrosives and severe vibration.
Technical parameter
Item | Model | ||||
GN30-12/ 400-12.5 | GN30-12/ 630-20 | GN30-12/ 1200-31.5 | GN30-12/ 1250-31.5 | ||
GN30-12D/ 400-12.5 | GN30-12D/ 630-20 | GN30-12/ D1200-31.5 | GN30-12D/ 1250-31.5 | ||
Rated voltage(KV) | 12 | ||||
Rated current(A) | 400 | 630 | 1000 | 1250 | |
thermal stability current(KA) | 12.5 | 20 | 31.5 | ||
Thermal stabilization time(S) | 4 | ||||
Dynamic stability current(KA) | 31.5 | 50 | 80 | ||
Rated insulation level | Lightning impulse voltage(KV) | Interphase,Ground75,Fracture85 | |||
1min power frequency voltage(KV) | Interphase,Ground42,Fracture48 |