Kalayil Lightning Protection System

Kalayil Lightning Protection, MC Road, Adoor, Pathanamthitta - 691523

About Kalayil Lightning Protection System

The device which is used for the protection of the equipment at the substations against travelling waves, such type of device is called lightning arrester or surge diverter. In other words, lightning arrester diverts the abnormals high voltage to the ground without affecting the continuity of supply. It is connected between the line and earth, i.e., in parallel with the equipment to be protected at the substation.
The following are the damages that are caused by the travelling wave on the substation equipment.

The high peak or crest voltage of the surge may cause flash-over in the internal winding thereby spoil the winding insulation.
The steep wave fronts of the surges may cause external flashover between the terminal of the transformer.
The highest peak voltage of the surge may cause external flashover, between the terminal of the electrical equipment which may result in damage to the insulator.
Working of Lightning Arrester
When a travelling wave reaches the arrestor, its sparks over at a certain prefixed voltage as shown in the figure below. The arrestor provides a conducting path to the waves of relatively low impedance between the line and the ground. The surge impedance of the line restricts the amplitude of current flowing to ground.

The lightning arrester provides a path of low impedance only when the travelling surge reaches the surge diverter, neither before it nor after it. The insulation of the equipment can be protected

Posted By : James Daniel


  • MON  09:00 AM To 09:00 PM
  • TUE  09:00 AM To 09:00 PM
  • WED  09:00 AM To 09:00 PM
  • THU  09:00 AM To 09:00 PM
  • FRI  09:00 AM To 09:00 PM
  • SAT  09:00 AM To 09:00 PM
  • SUN  Holiday
09:00 AM To 09:00 PM


All hours

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