XGN2-12 Box-Type Fixed Metal-Enclosed Switchgear

XGN2-12 Box-Type Fixed Metal-Enclosed Switchgear (hereinafter referred to as “the switchgear”) is designed for 3.6 kV, 7.2 kV and 12 kV three-phase AC 50 Hz networks to receive and distribute electrical energy, especially in installations that demand frequent switching operations. Its busbar system employs a single-busbar arrangement, which can be extended to a single-busbar with transfer bus or a double-busbar configuration.

The switchgear complies fully with the Chinese national standard GB 3906 “3–35 kV AC Metal-Enclosed Switchgear” and the international standard IEC 298, and fulfils the complete “five-prevention” interlocking requirements.

The main switching device is either the ZN28A-12 or ZN22-12 series vacuum circuit-breaker, operated by the CD17A electromagnetic mechanism or the CT19B spring-operated mechanism. The disconnectors employed are the GN30-12 rotary disconnector series and the GN22-10 high-current disconnector series.