This load switch series products are developed by the company in 2008, is applied to XGN15-12 sf6 ring network cabinet, has the high efficiency, safety, reliability, and simple structure, flexible operation, reliable interlocking, installation is convenient wait for a characteristic.
Conforming to standard IEC60265, IEC62271, GB3804, GB16926, etc.
Structure and principle
The main circuit and ground circuit of fln48-12d load switch are sealed in the insulated shell made of epoxy resin by APG process, which has the advantages of good insulation performance and anti-pollution environment.
Insulation shell composed of two insulation cover cake together, and filled with relative pressure for o. 4 bar of SF6 gas, the local relatively thin wall thick explosion-proof membrane insulation cover to take measures, to ensure that the one thousand accident cases, the overvoltage of SF6 gas pressure drop after the break through safety explosion-proof membrane, gas directly into the cabinet put oneself in another's position at the back, ensure the personal safety.
The fln48-12d load switch USES an arc extinguishing arc structure, which has the characteristics of rapid arc extinguishing and reliability.
The fln48-12d load switch is divided into fln48-12d (k-type single spring operating mechanism) and flrn48-12d (type A single spring operating mechanism). Flrn48-12d can be combined into load switch + fuse combiner and has control and protection function.
Normal use of environmental conditions.
A ambient temperature
The highest temperature + 40 ℃
The lowest temperature of 35 ℃
B the humidity
The maximum average is less than 95%.
On an average of 990% or less
C elevation is less than 92,000 meters.
D. Earthquake resistance 8 degrees.
Air around e should be free of corrosive, flammable gas, water vapor and other obvious pollution.
There should be no frequent violent shaking.
Annual leakage rate is less than 1%.
Special conditions
When the load switch is used at an altitude of more than 2000 meters, it needs to be specified so that the design plan can be adjusted.
(the current load switch manufactured by our company is already at an altitude of up to 5000 meters.)
