SMICO Gang operated air break switches

SMICO Gang operated air break switches

SMICO Gang operated air break switches is used in electric power system with rated frequency 50/60Hz, rated voltage 12/36kV. Its main for making or breaking circuit under line supplying voltage in outdoor high voltage distribution system equipments. Thereof anti-pollution type disconnect switch is especially used in serious polluted area. It accords with standards of IEC62271-103: High voltage switches.

Service environment

a)Air temperature: Maximum temperature: +75℃; Minimum temperature:-45℃
b)Humidity: Monthly average humidity 95%; Daily average humidity 90% .
c)Altitude above sea level: Maximum installation altitude: 2500m
d)Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
e)No frequent violent shake

Features and benefits

•Compact design
•All steel parts either in stainless steel or hot-dip galvanized
•Solid and stable base frame
•Main contact with icing protection
•Insulators available in porcelain or alternatively in silicone
•Minimal sag for the line-connection thanks to the two fixed terminals
•Completely maintenance antirust AL alloy -Arc chamber
•Switching-off procedure without external arc
•Short circuit making capacity under specific conditions possible
•Fixing on the supporting structure either by clamping (free setting) or screwing (holes in the base frame)
•Easy on-site installation and setting
•High reliability: up to 1000 cycles (depending on the making current)
•All conducting parts either silver, nickel or tin-plated
•Practically maintenance-free