Electric switchgear is a collection of devices used to control, protect, and isolate electrical equipment. It includes components such as circuit breakers, fuses, disconnect switches, relays, and transformers. Switchgear is typically used to manage electrical power distribution systems in residential, commercial, and industrial settings.
The primary function of switchgear is to ensure the safe and reliable operation of electrical power systems. It accomplishes this by controlling the flow of electrical current, protecting equipment from overloads and short circuits, and isolating faulty equipment from the rest of the system.
Switchgear can be classified based on voltage level, type of insulation, and the type of interruption technology used. For instance, low voltage switchgear is designed for voltages up to 1000 volts, while medium voltage switchgear is used for voltages ranging from 1kV to 35kV. High voltage switchgear, on the other hand, is used for voltages above 35kV.
Switchgear is an essential component of any electrical power system, and its proper selection and maintenance are critical to ensuring the safety and reliability of the system.