783 / 2022-03-31 22:27:41

Study on Pollution Accumulation Characteristics of Inverted T-type Insulator Strings

inverted T‑type insulator string, outdoor, pollution accumulation, equivalent salt deposit density, ash density

The pollution accumulation characteristics of insulators are directly related to the flashover voltage. In this paper, for an inverted T‑type insulator string, the natural fouling state of the inverted T-type simulation string was detected after three years of hanging in the outdoor test site of the d-level pollution area. It is found that the average equivalent salt density of insulator tension part is about 59.0 % of its suspension part, and the average ash density is about 57.4 % of the latter.