Product Description

FKW-36/630 Type outdoor AC high voltage isolate switch (hereinafter referred to as load break switch), is integrated the existing load switch production  of mature experience and advanced technology design and manufacturing of the new  load switch.  Isolate the switch by knife, interrupter and actuator components. Gas arc  theory is used, with simple structure, less maintenance, arc-quenching ability,  high insulation level of fracture, high reliability, and reached the advanced level  of similar products abroad. This applies to rated voltage load switch 40.5kV And below, rated frequency 50Hz Outdoor three-phase AC power distribution system, open and closing with load  distribution line, and Guan Hekong can also be used as breaking load circuits,  no-load transformer used. In the off position, to meet the isolation imposed on  isolating switch power requirements.

The use of environmental conditions 

a) The ambient air temperature: upper +40℃, floor -25degrees, daily temperature  does not exceed 32K; 

b) Altitude:1000m; 

c) Wind pressure does not exceed 700Pa ( equivalent wind speed 34m/s); 

d) Air contamination: GB5582 4.1 article IV; 

e) Earthquake intensity shall not exceed 8 degrees; 

f) Walk on ice thickness does not exceed 10m.

The load switch consists of isolated knife, interrupter and actuator  components. ARC-quenching Chamber performance, with ARC resistance, high  temperature resistance, high strength, insulation, gas-producing arc. Internal linkage Springs rapid body guarantee effect of load current breaking free from  manual operation varies from person.

The switch interrupter fracture and isolate the fracture in the process of  closing the parallel institutions. Such an ARC break only the arc does not bear  the main current-carrying tasks, structures greatly simplifies the interrupter  and isolated knife bearer of load flow and short-circuit making task, does not  participate in the arc, it is simple in structure and long service life. So that  the load switch is also used for isolating switch, isolation switch on the parallel  arc-quenching fracture surface and the load switch.

The load switch with manual rod or electric actuator operation, and can be locked  in the opening and closing positions. The off switch visible after fracture,  isolating protection. Switch mounted on the outside pole, can adapt to the severe  contamination, can be installed horizontally, vertically, and convenient for  outdoor wiring. Switch maintenance work less, interrupter breaking load current  can be 100 times do not repair.

The load-break switch A 、 B 、 C Three poles in turn assembled in a large  section galvanized steel base, with an integral drive connecting rod are connected  into a single line, over the same period to ensure that three-pole tripping and  closing operation. Switch knife contact spring loaded to ensure contact has  sufficient contact pressure, making it easy to contact with stable and reliable,  while ensuring reliability of the opening and closing operations, which have enough  capacity at nominal load current closing, does not require the addition of  secondary protection device.