Prospective Short Circuit Current

Prospective Short Circuit Current

The prospective short circuit current (PSCC) is the highest electric current which can exist in a particular electrical system under short-circuit conditions. It is determined by the voltage and impedance of the supply system. It is of the order of a few thousand amperes for a standard domestic mains electrical installation, but may be as low as a few milliamperes in a SELV (Safety Extra Low Voltage or, occasionally, Separated Extra Low Voltage) system or as high as hundreds of thousands of amps in large industrial power systems.

Read more about Prospective Short Circuit CurrentImportance, Residential, Utility and Industrial

Other articles related to "prospective short circuit current, short, current, circuit, currents":

Prospective Short Circuit Current - Utility and Industrial
... and industrial power systems, often the short-circuit current is calculated from nameplate impedances of connected equipment and the impedance of ... and motors) are present in the system, the time-varying effect of their contribution to a short circuit may be evaluated ... Stored energy in a generator may contribute much more current to a short circuit in the first few cycles than later on this affects the interrupting rating selected for circuit breakers and fuses ...
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    Absolutely speaking, Do unto others as you would that they should do unto you is by no means a golden rule, but the best of current silver. An honest man would have but little occasion for it. It is golden not to have any rule at all in such a case.
    Henry David Thoreau (1817–1862)

    The Father and His angelic hierarchy
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    Stood in the circuit of a needle’s eye.
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    Life’s too short for chess.
    Henry J. Byron (1834–1884)