发明名称 |
In-service testing of current transformers |
摘要 |
A system and method for testing an on-line current transformer is provided. The current transformer includes a primary winding and a secondary winding. An operating current continues to flow through the primary winding during testing of the current transformer. A controllable load is applied to the current transformer secondary winding. The controllable load is varied over a range of load settings including a maximum current setting and a maximum voltage setting. At a plurality of load settings within the range of load settings, a current flowing through the current transformer secondary winding is measured. Also, a voltage across the current transformer secondary winding is measured. An actual excitation curve is generated from the measured currents and voltages corresponding to the plurality of load settings.
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申请公布号 |
US6680616(B2) |
申请公布日期 |
2004.01.20 |
申请号 |
US20020059553 |
申请日期 |
2002.01.28 |
申请人 |
KUHLMAN ELECTRIC CORPORATION |
发明人 |
KHALIN VLADIMIR M.;MATHIS MELREN V.;WYATT HAYES K. |
分类号 |
G01R31/00;G01R31/06;(IPC1-7):G01R31/06;G01R29/20 |
主分类号 |
G01R31/00 |
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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