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  • Switchgear Terminology & IEC Standards

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    by

    John Mulindi
    in

    Switchgear generally refers to the switching devices and their combinations, with the related control, measuring, protective and regulating equipment. The switchgear equipment basic purpose is switching and interrupting currents either under normal or abnormal operating conditions. Modern power systems, power … Read more

  • SF6 Circuit Breakers: Features, Operation & Applications

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    by

    John Mulindi
    in

    Introduction Many modern designs of circuit breakers for use at transmission voltages utilize sulphur hexafluoride (SF6) gas both as an arc-interrupting/arc-quenching and a dielectric medium. At distribution voltages SF6 designs of circuit breakers are also used, however … Read more

  • 5 Causes of High-Voltage Switchgear Failures

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    by

    John Mulindi
    in

    Switchgear is basically equipment used switch ON or OFF generators, transmission lines, distributors and other equipment under both normal and abnormal conditions. Switchgear consists of switching and protecting devices such as switches, fuses, circuit breakers, relays, and so forth. In … Read more

  • Switchgear Equipment

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    by

    John Mulindi
    in

    Switchgear can be defined as equipment used for controlling, regulating and switching ON and OFF power circuits. Switchgear units range from the small moulded-case unit circuit breakers in a household panel board to the huge, air break switches on 750 … Read more