发明名称 |
Fault detector device in a three-phase network supplying leads by full wave trains. |
摘要 |
<p>The fault detection device in a three-phase network for supplying loads comprises: . a first and a second current transformer each associated with a thyristor unit, . a circuit (7) for shifting the phase of the first signal, . means (8) of combining the signal emanating from the phase-shifting circuit (7) and the second signal, . a first amplifier circuit (9), . a rectifier circuit (10), . an integrator circuit (11), . a stage (12) with detection of threshhold beyond which a load imbalance is detected, . and means (14) of checking detection of the imbalance. <IMAGE></p> |
申请公布号 |
EP0285532(A1) |
申请公布日期 |
1988.10.05 |
申请号 |
EP19880420104 |
申请日期 |
1988.03.29 |
申请人 |
EUROTHERM AUTOMATION S.A., SOCIETE ANONYME: |
发明人 |
PICAVET, MICHEL;LEVEL, YVES |
分类号 |
G01R29/16;H02H3/34;H02J3/14;(IPC1-7):H02H3/34 |
主分类号 |
G01R29/16 |
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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