SHARDA surge protection capacitors are of special type capacitors. Its application is of specialized nature i.e. in case of abnormal condition. These capacitors are designed for protection of large rotating machines such as motors & generators. At the time of over voltage during electric storms produces surges to electrical equipment’s connected to system. The voltage stress between turns of multi turn coil sets a limitation and surge voltage causes breakdown of turn to turn insulation resulting in short circuited turns.

The surge capacitors restrict the applied surge to a point remote from the point of connection to the equipment to the system.