The main concept is to breakdown the electrical conductivity of high voltage power transmission or distribution line from transmission or distribution tower. Insulators are the main component of Transmission Line, and there are three major types of insulators used for overhead insulators.
- Pin Insulator
- Suspension Insulator
- Strain Insulator
Let’s Get Started:
Pin Insulators
Pin Insulator is widely use for overhead high voltage power transmission lines and these types of insulators much popular in 33kv distribution lines.
Pin insulators are mainly classified in to two according to their manufacture materials.
Most of Pin insulators manufactured by use of Glass and Porcine materials .
For higher voltages of transmission line use more numbers of pin insulators compare to low voltage transmission lines.
Pin insulators are also use for higher and lower voltage transmission and distribution lines in Patrice.
The type of pin insulators use for higher voltage lines is normally known as the Post type of Transmission Line Insulators.
Post insulators have several numbers of petticoathatich higher than normal pin insulatouseduse for low voltage applications, and the height of post insulators are also high.
Suspension Insulator
Suspension Insulator are the most commonly used insulator types in High-voltage transmission applications.
Suspension Insulator has higher economical advantage for high voltage application compare to other insulators.
There are so many advantages of Suspension insulators over other .
Normal voltage ratings of suspension Transmission Line Insulators are 11kV and by several discs can be adjusted for relevant transmission line voltages.
For example for 132 kV transmission line use 132kv/11 kv = normally 13 discs.
Suspension Insulator has greater flexibility over other insulator types.
If any insulator disc is damage in Transmission line it is much easily replace even the Transmission line is energized.
The Suspension insulators have great capability to take carension of the conductor’s tensionuctor at transmission compare to other types of conductors.
Strain Transmission Line Insulators
Strain Insulator are widely used where the tension load of conductor is higher.
The most important factor of strain insulator is a mechanical strength.Stay Insulators and Shackle insulators are part of Strain Insulators and these types of insulators widely use where high mechanical strength is necessary in low voltage applications.
These are the main three types of insulators which use widely for power transmission and distribution lines.
Conclusion:
I hope you have some idea about the insulators types we use in electrical power energy.
