Types of insulators used in transmission lines ?
Disc insulators are made for 11 KV voltage. But the biggest advantage is that it can be used up to such a high voltage level as many discs are connected.
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The dielectric strength of the glass insulator is 140KV/cm. Glass insulator does not heat up quickly.
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Pin insulators are made from ceramic, rubber, silicone, polymer, and porcelain. Pin insulators are used from 415 volts to 33 KV.
We can use a Post insulator up to 1100KV voltage level.
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shackle insulator can be applied both horizontally and vertically. This type of insulator is used in low voltage.
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Porcelain is a great insulation material.
All types of voltage level insulators are made of porcelain.
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1) This type of insulator is very light in weight.
2) Fitting this type of insulator is very easy.
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If the wire has to be twisted or bent in the overhead line, then a letter stay type insulator is installed at such a place.
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This insulator is prepared by adding a disc of glass or porcelain insulator. This insulator isolates and supports the line conductor.