发明名称 |
Method of configuring a microprocessor-based relay for use in overcurrent protection |
摘要 |
A system for generating a time overcurrent curve from a set of time and current inputs. The overcurrent curve is generated by simultaneously finding four coefficients of a standard overcurrent equation. Two of the coefficients are found by successive approximation and two of the coefficients are found via a least squares fit approximation. After the coefficients are found, they are used in the standard overcurrent equation to produce a set of data points indicative of the overcurrent curve. The data points are transferred to an overcurrent relay for the detection of overcurrent conditions.
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申请公布号 |
US5987393(A) |
申请公布日期 |
1999.11.16 |
申请号 |
US19970803125 |
申请日期 |
1997.02.20 |
申请人 |
ABB POWER T&D COMPANY INC. |
发明人 |
STINSON, PETER J. |
分类号 |
H02H1/00;H02H3/00;H02H3/093;(IPC1-7):H02H3/08 |
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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