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What are the advantages of using SF6 gas as insulation and arc extinguishing medium compared with liquid and solid?

2016-04-06 ydlcb

Gas insulating medium has obvious advantages compared with liquid and solid, which are reflected in the following aspects:

(1) The conductivity is very small, and there is actually no dielectric loss.

(2) The dirty matter produced under the action of arc and corona is very small, there will be no obvious residual changes, and the self-recovery performance is good.

(3) In the uniform or uneven electric field, the insulation strength of the gas insulation increases with the increase of the gas pressure, so the appropriate gas pressure can be selected according to the needs.


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