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Switchgear refers to a combination of electrical disconnect switches, fuses, or circuit breakers used to isolate, control, and protect electrical equipment in a power system. It is a vital component of any electrical distribution network, ensuring the safety of personnel and the reliability of the electrical supply. Switchgear types include:
Circuit Breakers: Automatically interrupt the flow of current during an overload or short circuit and can be reset.
Disconnect Switches/Isolators: Manually operated devices used to isolate a circuit for maintenance; they do not provide protection against overloads or short circuits.
Fuses: One-time use devices that sacrifice themselves to protect the circuit by melting when excessive current flows.
Rear-Connected Switchgear: Designed for indoor installations, where connections are made at the rear of the gear.
Drawout-Type Switchgear: Allows for easy removal and insertion of circuit breakers for maintenance without disrupting the whole system.
