Disconnection switch Series
Application Scope& Main Series of disconnection switch
HGW9-10 type outdoor disconnection switch is used for opening and closing single phase or three phase circuits under the voltage but no-load condition in 10kV power System.
Structure features of disconnection switch
HGW9-10 type outdoor disconnection switch has simple structure, convenient price, and simple use. It is composed of base, support insulator, electricity conductpart and mechanism. Using blade structure to open and close circuit. Blade of each phase is composed of two blades. These are compress springs on two sides of blades, to adjust or getting needed pressure. When open and close switch, use insulating bar operating mechanism. Blade have self-lock device.
Normal service condition of disconnection switch
a) Altitude above the sea: no more than 1000m.
b) Ambient temperature: upper limits+40℃, lower limits-30℃ (high cold area lower limits -40℃)
c) Outdoor wind speed: not exceeding 35m/s;
d) Earthquake intensity: not exceeding 8 degree;
e) Occasions without sever vibration
f) Occasion without matter which will badly influence the insulation performance and conductivity of disconnector, such as gas, steam, chemical sediment, salt fog, dust, and the other explosive and corrosive matters.
Technology performance of disconnection switch
Technology performance of product accords with stan: GB1985-89 <<AC HV disconnector>> and IEC 129(1984)<<AC disconnector and earthing switch>>、IEC694(1980)<<HV switch equipment and control equipment common clause>>.
The composite railway insulators