What is suspension type insulator?
Definition: A suspension type insulator protects an over headed transmission line like a conductor. Generally, it is made up of porcelain material that includes single or a string of insulating discs hanged over a tower. It operates at above 33KV and overcomes the limitation of pin type insulator like the following.
Where are suspension type insulators used?
Suspension insulators support transmission lines on steel towers, isolating the lines from the tower. They play a key role in the safe supply of electricity. Based on the transmission voltage and usage environment, suspension insulators are used in configurations of two or more.
What are the advantages of suspension insulator?
Suspension insulators are cheaper in cost compared to pin type insulators for operating voltage above 50kV. Each unit of suspension insulators (insulator disc) is designed for comparatively low voltage (11kV) and can be increase the insulation strength by connecting these insulator disc modules in series.
What is the difference between a strain insulator and a suspension insulator?
“Suspension” and “Strain” insulators are the same thing; when used in the vertical position (with the conductor hanging below) they are called “suspension”; when used in the horizontal, to dead-end a conductor, they are called “strain”. There are two basic types of suspension insulators: unipart and multipart.
What are 4 types of insulator?
Type of Insulators Used in Transmission lines
- Pin Insulator.
- Suspension Insulator.
- Strain Insulator.
- Stay Insulator.
- Shackle Insulator.
What are the types of suspension?
Here are the eight commonly used car suspensions that you may encounter.
- Multi-Link Suspension.
- Rigid Axle Suspension.
- Macpherson Suspension.
- Independent Suspension.
- Rigid suspension – Leaf Spring.
- Trailing Arm Suspension.
- Double Wishbone Suspension.
- Air Suspension.
Why are suspension insulators used on high voltage cables?
This arrangement provides partial protection from lightning. The suspension arrangement provides greater flexibility to the line. Suspension insulators are allowed to swing so that they can take up the position where mechanical stresses are minimum.
What is a shackle insulator?
Definition: An insulator that is used in distribution networks that works with low voltage is known as a shackle insulator. This insulator is also known as a spool insulator. These insulators can be worked in two positions like horizontal otherwise vertical.
What is insulator with diagram?
Differences Between Conductor and Insulators
| Conductor | Insulator |
|---|---|
| Electrons move freely within the conductor | Electrons do not move freely within the insulator |
| The electric field exists on the surface but remains zero on the inside | The electric field doesn’t exist |
What are 10 types of insulators?
10 Electrical Insulators
- Rubber.
- Glass.
- Pure water.
- Oil.
- Air.
- Diamond.
- Dry wood.
- Dry cotton.
What are 4 types of suspension?
Modern springing systems are based on four basic designs. Get to know these four spring classes: leaf springs, coil springs, torsion bars, and air springs.