What is the working principle of lightning arrester?

What is the working principle of lightning arrester?

Lightning arrestor working principle is, once the voltage surge travels throughout the conductor then it reaches the location of the arrestor where it is installed. So it will break down the insulation of the lightning arrestor for a moment, so voltage surge can be discharged toward the ground.

What is a horn gap arrestor explain how it works?

3. Horn Gap Arrester. It consists of two horns shaded piece of metal separated by a small air gap and connected in shunt between each conductor and earth. The distance between the two electrodes is such that the normal voltage between the line and earth is insufficient to jump the gap.

What is a Thyrite used for?

Abstract: A new material has been developed which is peculiarly adapted for use in lightning arresters. It is physically similar to dry process porcelain and it can be made in any shape that can be successfully moulded.

What are three types of lightning arrester?

Heeding these above factors, there are twelve types of lightning arresters.

• Rod Gap Arrester.
• Sphere Gap Arrester.
• Horn Gap Arrester.
• Multiple-Gap Arrester.
• Impulse Protective Gap Arrester.
• Electrolytic Arrester.
• Expulsion Type Lightning Arrester.
• Valve Type Lightning Arresters.

What is Thyrite arrester?

Thyrite arrester is most common and is mostly used for the protection against high dangerous voltages. It operates on the fact that thyrite, a dense inorganic compound of ceramic nature, has high resistance decreasing rapidly from high value to low value for currents of low value to those of high value.

What are the components of lighting arrester?

The parts of a lightning protection system are air terminals (lightning rods or strike termination devices), bonding conductors, ground terminals (ground or “earthing” rods, plates, or mesh), and all of the connectors and supports to complete the system.

What is Horn Gap and rod gap?

It consists of two horn-shaped pieces of metal rods separated by a small distance and connected in a shunt between each conductor and earth. The gap between horns is less at the bottom and large at the top.

What is expulsion type lightning arrester?

Expulsion type lightning arrester is also known as a protector tube. It consists of – (i) a tube made of fibre which is very effective gas-evolving material (ii) an isolating spark gap (or external series gap) and (iii) an interrupting spark gap inside the fibre tube.

What is Thyrite lightning arrester?

ADVERTISEMENTS: Thyrite arrester is most common and is mostly used for the protection against high dangerous voltages. It operates on the fact that thyrite, a dense inorganic compound of ceramic nature, has high resistance decreasing rapidly from high value to low value for currents of low value to those of high value.

Which lightning arrester is mostly used?

Metal Oxide Lightning Arrester : The metal oxide lightning arrester is the most commonly used arrester in modern power systems.

What are the application of Thyrite arrester?

What is the range of lighting arrester?

ESE Lightning Arrester, Operating Temperature Range: -20 To 85 Deg C