The equipment assembly integrates components, including circuit breakers (CB), busbars, disconnecting switches, voltage transformers, current transformers, lightning arresters, bushings, and grounding switches. It employs SF6 gas with outstanding insulation and arc-extinguishing performance as the dielectric and arc-quenching medium, and seals all HV electrical components within a grounded metal enclosure. Suitable for power grids with HV levels and large capacity ratings, it serves for power reception/distribution and control. 

Features: compact structure, small footprint, high reliability, flexible component arrangement, convenient installation, strong safety, robust environmental adaptability, and minimal maintenance workload. 

Voltage levels: 126kV, 252kV