KYN28A(GZS1) type indoors metal shell draw-out switch device (brief called switch device)

KYN28A(GZS1) type indoors metal shell draw-out switch device (brief called switch device) is the complete electricity device of 3-10 kV three-phase AC 50Hz single-generatrix partial turnoff system and mainly used to electricity distribution, electricity of twice transformer and the startup of large-scale electromotor for the use of control protection and examination. The switch device meets the standards of IEC 298 and GB3906 and can avoid pull and push breaker handle car with charge, prevent miss-open/close breaker, prevent open/close breaker (the grounding switch is close), prevent miss-enter into partial room with electricity, prevent miss-close the interlock function of grounding switch with electricity. It is equipped with VS1 (ZN63A) vacuum breaker or imported VD4 vacuum breaker of HS vacuum breaker of Fuji Electric machine.
the switch device is designed according to GB3906-1991 (3-35kV AC Metal Close Switch Device). The whole is composed of body and middle-type draw-out parts (such as handle car), see draw 2. The body has four independent partial rooms, the shell protection class is IP4X, the protection class is IP4X when the doors of partial room and breaker room. It has trolly in/out line, cable in/out line and other function sketch. After assemble and combination, it can become an electricity distribution with various assembled sketches. The switch device can be installed and maintained from frontally and it can be assemble by back to back and back-wall type to improve the safety, flexibility and reduce the covered area.