SMVS mainly engages in developing and manufacturing medium voltage vacuum interrupters (VI), vacuum circuit breakers (VCB) and gas insulated switchgear (GIS) as well as after sales services in China.
The application of gas insulated substation(GIS) has expended year by year, Harm of the very fast transient voltages (VFTO) caused during disconnecting switches (DS) operation becomes more obvious.
The paper introduces suitable environmental conditions, technical parameters, general layout structure and main type tests of ZFN13-40.5(Z) gas insulated metal-enclosed switchgear (GIS).