发明名称 |
SYSTEMS AND METHODS FOR ARC FAULT DETECTION |
摘要 |
A method for testing an electrical fault detection device is provided. The device having a microprocessor and analog processing circuitry, the analog processing circuitry configured to detect a high-frequency component of a sinusoidal electrical power signal, identify a broadband portion of the high frequency component, and generate digital signals indicative of at least one characteristic of the broadband portion, the microprocessor configured to store a fault count value representing a propensity of the high-frequency component to be an arc fault, adjust the fault count value based on the at least one characteristic of the broadband portion, and generate a trip signal if the fault count value exceeds a fault count threshold. The method comprises providing a test command signal to an RF noise generator, the RF noise generator configured to generate, in response to the test command signal, a high-frequency broadband noise signal and deliver the high-frequency broadband noise signal to an input of the analog processing circuitry. The method further comprises monitoring, by the microprocessor, the high-frequency broadband noise signal to determine whether the digital signals generated by the analog processing circuitry are consistent with the high-frequency broadband noise signal; and generating a test failure trip signal if the digital signals generated by the analog processing circuitry are not consistent with the high-frequency broadband noise signal. |
申请公布号 |
EP2082466(A2) |
申请公布日期 |
2009.07.29 |
申请号 |
EP20070853056 |
申请日期 |
2007.10.31 |
申请人 |
SIEMENS ENERGY & AUTOMATION, INC. |
发明人 |
RESTREPO, CARLOS;STALEY, PETER, S.;NAYAK, AMIT;MIKANI, VASKE;KINSEL, HUGH, T.;TITUS, SOLOMON, R.;ENDOZO, JOSELITO |
分类号 |
H02H1/00;H02H3/33 |
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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