Saturday, August 3, 2013

LIGHTNING ARRESTER AND SURGE SUPPRESSOR



LIGHTNING ARRESTER: 
The large spark accompanied by the light produced by an abrupt, discontinuous, discharge of electricity through the air, under turbulent conditions of atmosphere is called lighting. This lighting is arrested by fixing lightning arrester on the top of the buildings and Horn gap arrester in the distribution system.
SURGE SUPPRESSOR:  
Suppressor comprises of capacitor 0.1 in series with the resistance of 100 Ohms. The RC surge suppressor connected phases to ground. The voltage surges of steep wave front are modified by the surge suppressor. The steepness of wave front reduces as a capacitance gets charged by the wave.

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