The importance of electric supply is well known. It is very much necessary to protect the power system, equipment, motors, generators, etc from the dangerous fault condition in an electric supply. Hence it is necessary to have the arrangements with which all these equipments can be switched ON or OFF under no load or load conditions or even under fault condition. The collection of various equipments used for the switching and protecting purposes in a power system is called switchgear. Low voltage switchgears have wide range of applications in today’s market.
Some of the switching devices are mentioned here under.
Air circuit breaker
Moulded case circuit breaker
Miniature circuit breaker
Motor protection circuit breaker
Earth leakage circuit breaker
Isolator / Switch disconnector
Contactor
Relay
Timer
Fuse and So on…
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