Indoor load break switch SF6 load switch

General:

The live tank can protect and control the electric equipment for power supply and transformer substations,especially suitable for ring net cabinet,cable branch cabinet and distribution switch substation.It complies with standards of GB,IEC.With its small volume,it is convenient to install and operate.

Service Environment

• Ambient temperature: maximum temperature :+40℃; Minimum temperature :-35℃

• Humidity: maximum average relative humidity daily average :≤95%; Monthly average :≤90%

• Altitude :≤2000 meters;

• Seismic capacity :8 degrees;

• The surrounding air should be free from corrosive, flammable gas, water vapor and other obvious pollution, there should be no frequent violent vibration.

• Annual leakage rate :≤0.1%.

Key Feature

• The main circuit and grounding circuit of the load switch are sealed in the insulating shell made of epoxy resin cast by ATG process, which has the advantages of good insulation performance and anti-pollution environment. The insulation shell is formed by the combination of the upper and lower insulation covers, and the inside is filled with SF6 gas with a relative pressure of 0.4bar.

• The lower insulation cover adopts partially thin and thick explosion-proof measures, so as to ensure that in case of an accident, the over-pressurized SF6 gas breaks through the safety explosion-proof film and the pressure drops, and the gas is directly sprayed to the rear of the cabinet to ensure personal safety.

• The load switch adopts arc extinguishing phase arc extinguishing structure, which has the characteristics of rapid arc extinguishing and reliable.

• This series of load switch is divided into two types: type K for single spring operating mechanism and type A for double spring operating mechanism, which can be combined into load switch + fuse combination electrical appliances and has control and protection functions.

• The load switch has a visual fracture observation window, which can clearly see the parting and closing state of the contact, which is the unique advantage of the switch.

Technical Data

Drawing