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  2. Residual-current device - Wikipedia

    en.wikipedia.org/wiki/Residual-current_device

    A residual-current device (RCD), residual-current circuit breaker (RCCB) or ground fault circuit interrupter (GFCI) [a] is an electrical safety device, more specifically a form of Earth-leakage circuit breaker, that interrupts an electrical circuit when the current passing through line and neutral conductors of a circuit is not equal (the term residual relating to the imbalance), therefore ...

  3. Earth-leakage circuit breaker - Wikipedia

    en.wikipedia.org/wiki/Earth-leakage_circuit_breaker

    An earth-leakage circuit breaker (ELCB) is a safety device used in electrical installations to prevent shock. It consists of either a current sensing mechanism, or a voltage sensing mechanism. Such a protection mechanism may be found in the form of distribution board modules, standalone devices, and special sockets (aka receptacles ).

  4. ANSI device numbers - Wikipedia

    en.wikipedia.org/wiki/ANSI_device_numbers

    In electric power systems and industrial automation, ANSI Device Numbers can be used to identify equipment and devices in a system such as relays, circuit breakers, or instruments. The device numbers are enumerated in ANSI / IEEE Standard C37.2 Standard for Electrical Power System Device Function Numbers, Acronyms, and Contact Designations .

  5. Residual-current circuit breaker - Wikipedia

    en.wikipedia.org/?title=Residual-current_circuit...

    Retrieved from "https://en.wikipedia.org/w/index.php?title=Residual-current_circuit_breaker&oldid=41774014"

  6. Circuit breaker (overcurrent) - Wikipedia

    en.wikipedia.org/wiki/B63_circuit_breaker

    The maximum short-circuit current that a breaker can interrupt is determined by testing. Application of a breaker in a circuit with a prospective short-circuit current higher than the breaker's interrupting capacity rating may result in failure of the breaker to safely interrupt a fault.

  7. Breaking capacity - Wikipedia

    en.wikipedia.org/wiki/Breaking_capacity

    The prospective short-circuit current that can occur under short circuit conditions should not exceed the rated breaking capacity of the apparatus, otherwise breaking of the current cannot be guaranteed. The current breaking capacity corresponds to a certain voltage, so an electrical apparatus may have more than one breaking capacity current ...

  8. Transient recovery voltage - Wikipedia

    en.wikipedia.org/wiki/Transient_Recovery_Voltage

    Examples of TRV waveshapes. A transient recovery voltage (TRV) for high-voltage circuit breakers is the voltage that appears across the terminals after current interruption. It is a critical parameter for fault interruption by a high-voltage circuit breaker, its characteristics (amplitude, rate of rise) can lead either to a successful current interruption or to a failure (called reignition or ...

  9. Recloser - Wikipedia

    en.wikipedia.org/wiki/Recloser

    Also known as reclosers or autoreclosers, ACRs are essentially rated circuit breakers with integrated current and voltage sensors and a protection relay, optimized for use as a protection asset. Commercial ACRs are governed by the IEC 62271-111/IEEE Std C37.60 and IEC 62271-200 standards.

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