发明名称 |
METHOD AND APPARATUS FOR DETECTING A FAILED THYRISTOR |
摘要 |
Methods and systems consistent with this invention detect a failed short thyristor in a solid-state controller for delivering power to a load during reduced-voltage operation. Methods and systems consistent with this inventio n detect a voltage across the thyristor, and indicate a failed short thyristor when the absolute value of the voltage across the thyristor remains below a threshold value during a predetermined period of time. Methods and systems consistent with this invention detect a failed open thyristor in a solid-sta te controller during full-voltage operation. Methods and systems consistent wit h this invention detect a voltage across the thyristor, and indicate a failed open thyristor when the absolute value of the voltage across the thyristor exceeds a threshold value.
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申请公布号 |
CA2379957(A1) |
申请公布日期 |
2001.02.22 |
申请号 |
CA20002379957 |
申请日期 |
2000.08.09 |
申请人 |
YORK INTERNATIONAL CORPORATION |
发明人 |
BEAVERSON, GREGORY K.;JADRIC, IVAN;SCHNETZKA, HAROLD R. |
分类号 |
G01R31/02;H02H7/08;H02H7/20;H02P27/02;(IPC1-7):H02H7/08 |
主分类号 |
G01R31/02 |
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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