Outline

HXGN17-12 box fixed type metal-enclosed switchgear (switch cabinet for short) is used to receive and distribute electrical  energy in 3.6, 7.2, 12kV three phase AC 50Hz system , specially in the frequ-ent operation occasion . Its bus bar system is single bus bar and it can derive single bus bar with branch and double bus bar structure. This switch cabinet conforms to the requirement of national standard GB3906-91 “3-35kV AC Metal Seal Switch  equipment”and the international standard IEC298, and has the functionof “five prevention”. This switch cabinet's main switch is composed of ZN28A-12 Yu or the ZN22-12 series vacuum circuit breaker, the CD17A spring  operating mechanism and the CT19B spring operating mechanism, the GN30-12rotary isolator and the GN22-10 big electric current  isolator series product.

Use environmental conditions

1. Ambient temperature:-25℃～ +40℃ ;

2. Altitude is not higher than 1000M; 

3. Relative environment humidity: The daily relative humidity average is not higher than 95%;The monthly relative humidity average  is not than higher 90%; 

4. The earthquake s intensity does not exceed 8 degree. 

5. Without fire, the danger of explosion, chemical corrosion and fierce vibration place and the pollution grade not beyond 3 level.