Method for detecting short-circuit conditions and device which uses this method
作者： Fabrizio Lorito
DOI:
关键词: Power factor 、 Peak value 、 Voltage 、 Control theory 、 Computer science 、 Electrical engineering 、 Rapid detection 、 Electrical network 、 Short circuit
摘要: Method and device for the rapid detection of short-circuits in an electrical network. The method is based on estimating characteristics short-circuit load calculating peak value current basis N successive samplings instantaneous (i(t)). If calculated value, typically available before actually attains this greater than a pre-established threshold (Icc), signal (C) emitted indicative fault. calculation may occur automatically example upon switching on, or be subject to exceeding guard (Is) by Moreover, makes it possible concurrently determine power factor (cos φ) phase voltage at moment short-circuit.
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