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  2. Circuit breaker - Wikipedia

    en.wikipedia.org/wiki/Circuit_breaker

    A circuit breaker is an electrical safety device designed to protect an electrical circuit from damage caused by current in excess of that which the equipment can safely carry (overcurrent). Its basic function is to interrupt current flow to protect equipment and to prevent fire.

  3. Power system protection - Wikipedia

    en.wikipedia.org/wiki/Power_system_protection

    Switchgear is a combination of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment. Switches are safe to open under normal load current (some switches are not safe to operate under normal or abnormal conditions), while protective devices are safe to open under fault current.

  4. Danelectro - Wikipedia

    en.wikipedia.org/wiki/Danelectro

    Dan-Echo simulated tape echo, Cool Cat chorus, FAB Tone distortion, Daddy O. overdrive, Dan-O-Matic tuner. The FAB series of guitar effect pedals is a budget range of pedals made by the Danelectro company that are manufactured in China. The series was launched in 2005 with the release of the FAB Distortion, FAB Overdrive, and FAB Metal pedals.

  5. Recloser - Wikipedia

    en.wikipedia.org/wiki/Recloser

    During those 1.5 cycles, other separate circuits can see voltage dips or blinks until the affected circuit opens to stop the fault current. Automatically closing the breaker after it has tripped and stayed open for a brief amount of time, usually after 1 to 5 seconds, is a standard procedure. [5]

  6. Vacuum interrupter - Wikipedia

    en.wikipedia.org/wiki/Vacuum_interrupter

    In 1956, Hugh C. Ross at Jennings Radio Manufacturing Corporation revolutionized the high-frequency-circuit vacuum switch and produced a vacuum switch with a rating of 15 kV at 200 A. Five years later, Thomas H. Lee at General Electric produced the first vacuum circuit breakers [2] [3] with a rated voltage of 15 kV at short-circuit breaking ...

  7. Utilization categories - Wikipedia

    en.wikipedia.org/wiki/Utilization_categories

    The utilization categories category for low-voltage switchgear defines the characteristic operating conditions for switchgear such as contactors, circuit-breakers, circuit-breaker-fuse units, contactor relays, etc. These devices are dimensioned for different electrical loads and for different operating conditions.

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