This equipment is used in Substation, due to its place of calculation is far from control-room, so it has the ability to prevent short-circuit, could bear hot & dynamic Current, the secondary impedance is bigger. this series product (Voltage is 0.2 class-20 VA, Current is 0.2s class-10 VA), its secondary capacity is more, it could meet the substations conditions of no-oil, higher hot-dynamic Current, more capacity, multiple changes and so on. Meanwhile, there is power stealing preventing box which is tied to stealing-prevent bolt at the second connection, so it could satisfy the users power stealing prevent idea.

This serial product be put in box after casting with epoxy resin, it could anti pollution, bear Naturalness, and suitable to the ambient temperature between -25 and 45, the surface creep age distance is more than ??35mm/kv, it could be used in highland.