发明名称 |
PROTECTION MEANS AGAINST AUTO-IGNITION FOR THE RECTIFIERS OF A STATIC CONVERTER |
摘要 |
In a static converter with thyristor-rectifiers, a protection against auto-ignition includes an arrangement for sensing the polarity over the rectifier, and an And-gate. The sensing arrangement emits a first signal to the And-gate when a voltage after a commutation becomes negative and a second signal when a voltage after a commutation becomes positive. The And-gate is connected to the ignition system of the rectifiers to supply both signals thereto. The connecting means for the first signal includes a delay device which delays the signal by a time corresponding to the longest recovery time for the thyristors, so that, if the second signal is emitted during this time, an ignition signal is allowed to pass the And-gate.
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申请公布号 |
US3865438(A) |
申请公布日期 |
1975.02.11 |
申请号 |
US19700007843 |
申请日期 |
1970.02.02 |
申请人 |
ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET |
发明人 |
BOKSJO, CARL INGVAR;OLSSON, KARL ERIK |
分类号 |
H02M1/088;H02M7/00;H02M7/757;(IPC1-7):H02M1/18 |
主分类号 |
H02M1/088 |
代理机构 |
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主权项 |
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地址 |
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