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What is the fault current in electrical system?

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68 views asked Sep 14, 2016 by Joe Mahini

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Fault Current means the electrical current that flows through a circuit during an electrical fault condition. A fault condition occurs when one or more electrical conductors contact ground and/or each other. Types of faults include phase to ground, double-phase to ground, three-phase to ground, phase-to-phase, and three-phase. A Fault Current is several times larger in magnitude than the current that normally flows through a circuit.

Electrical systems require the over current device to have an interrupting rating not less than the maximum available fault current to protect the system.
answered Sep 25, 2016 by Joe Mahini

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