发明名称 |
ARC DETECTOR AND ASSOCIATED METHOD FOR DETECTING UNDESIRED ARCS |
摘要 |
It is presented an arc detector for detecting undesired arcs. The arc detector comprises: an antenna for receiving an electromagnetic signal representing an arc; and a discriminator for analysing a signal from the antenna, the discriminator comprising a spectrum analyser arranged to detect whether the signal represents a normal arc or an undesired arc. The discriminator is arranged to detect whether the signal represents a normal arc or an undesired arc by comparing signal levels at frequencies of a spectrum of the signal corresponding to at least one partial reference spectrum, and determining the arc to be a normal arc if a deviation from the reference spectrum is less than a threshold deviation. A corresponding method is also presented.
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申请公布号 |
CA2721906(A1) |
申请公布日期 |
2009.10.29 |
申请号 |
CA20092721906 |
申请日期 |
2009.04.21 |
申请人 |
ABB RESEARCH LTD |
发明人 |
ERIKSSON, THOMAS;HALEN, STEFAN;HEDBERG, JONAS |
分类号 |
H02H1/00;H02H7/055 |
主分类号 |
H02H1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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