发明名称 |
KRETSANORDNING FOR DETEKTERING AV EN ELEKTRISK STROMS NOLLPUNKT |
摘要 |
A test circuit for determining when one of a number of source voltages deviates from its set point. Each source voltage has coordinated comparison circuit which compares the voltage with a preset value, and which has a limited range of output voltage. Each comparison circuit has its output connected to a switching circuit. The output of each switching circuit is connected to a short circuit coil of one coupling transformer. The coupling transformer is fed from an auxiliary current source through an auxiliary coil and has as output a pick-up coil connected to an evaluation device. |
申请公布号 |
SE7707024(L) |
申请公布日期 |
1977.12.24 |
申请号 |
SE19770007024 |
申请日期 |
1977.06.16 |
申请人 |
CKD PRAHA |
发明人 |
CIBULKA J;HLOUSEK J;JELINEK R;KRTEK J;WINKLER J |
分类号 |
G01R19/15;H02H7/12;(IPC1-7):G01R19/16;G01R19/14 |
主分类号 |
G01R19/15 |
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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