发明名称 |
Instantaneous overcurrent element for heavily saturated current in a power system |
摘要 |
The instantaneous overcurrent element, used in a microprocessor-based protective relay for a power system, includes a finite impulse response filter which generally is a cosine filter and is responsive to the current waveform from the current transformer for fault determination unless the distortion in the current reaches a preselected threshold, at which point a peak detector circuit is used to provide the current magnitude values for fault determination. |
申请公布号 |
ZA200409630(B) |
申请公布日期 |
2006.06.28 |
申请号 |
ZA20040009630 |
申请日期 |
2004.11.29 |
申请人 |
SCHWEITZER ENGINEERING LABORATORIES INC |
发明人 |
GABRIEL BENMOUYAL;ZOCHOLL, STANLEY, E.;ARMANDO GUZMAN-CASSILAS |
分类号 |
G01C;G01D;G05D;G06F;H02H1/00;H02H1/04 |
主分类号 |
G01C |
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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