What are the main types of high-voltage load switches?

There are six main types of high-voltage load switches.

①Solid gas-generating high-voltage load switch: Use the energy of breaking the arc itself to generate gas from the gas-generating material in the arc chamber to blow off the arc. Its structure is relatively simple, and it is suitable for products of 35 kV and below.

②Pneumatic high-voltage load switch: Use the compressed air of the piston to blow off the arc during the breaking process, and its structure is relatively simple, and it is suitable for products of 35 kV and below.

③Compressed air-type high-voltage load switch: Use compressed air to blow off the arc, which can break larger currents, and its structure is more complicated, which is suitable for products of 60 kV and above.

④SF6 type high voltage load switch: Use SF6 gas to extinguish the arc, its breaking current is large, the breaking capacitance current performance is good, but the structure is more complicated, and it is suitable for products of 35 kV and above.

⑤Oil-immersed high-voltage load switch: Use the energy of the arc itself to decompose and vaporize the oil around the arc and cool the arc to extinguish the arc. The structure is relatively simple, but the weight is large, and it is suitable for outdoor products of 35 kV and below.

⑥Vacuum-type high-voltage load switch: using vacuum medium to extinguish arc, long electrical life, relatively high price, suitable for products of 220 kV and below.