Different Insulators:
Over head electrical conductors used for transmitting electric power is mostly bare and not covered with any insulation medium. The bare line conductors are connected to the transmission towers through the insulators. Insulators act as insulating medium for flow of leakage current from conductor to ground through tower structures. Some of the insulating materials are Porcelain, Glass and Steatite materials.Different types of insulators used in the electrical substation are:
Pin Insulators: Simple pin type insulators are used for supporting standard flexible conductors in distribution system up to the voltage rating of 33kV
Strain Insulators: This type of insulators are employed at the dead end of the transmission lines or a sharp corner or transmission lines required to cross the rivers.
Suspension Insulators :
Suspension Insulators :
Hallow apparatus Insulators : Hallow insulators are employed in chambers of circuit breakers, CTs, CVTs, bushings, surge arresters
Suspension Insulators: Suspension type insulators consists of series of insulator discs piled up to provide the insulation for EHV applications.
Some of the other types of insulators are:
- Post insulators for support
- Stray arm insulators
- Shaft insulators
- Sectionalising insulators
- Connecting rod insulators
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