发明名称 |
Source related potential indicating continuity tester |
摘要 |
An electrical system fault detector for connection across the source terminals of an electrical system includes circuitry responsive to the relative potentials and current flows between the terminals and a selected point in the electrical system to provide a digital indication of acceptable continuity when current can flow between the selected point and one of the terminals and the potentials thereat are approximately equal. A lack of an indication of acceptable continuity indicates a fault such as an open circuit oran excessive impedance between the selected point and the terminal to which it is connected. An incongruous indication would further indicate a fault such as an incorrect connection or a short circuit. Further circuitry produces and is responsive to an oscillating signal subject to line impedances to distinguish between an open circuit and an excessive impedance.
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申请公布号 |
US4031461(A) |
申请公布日期 |
1977.06.21 |
申请号 |
US19760651808 |
申请日期 |
1976.01.23 |
申请人 |
DEERE & COMPANY |
发明人 |
REINER, CARL CASPER |
分类号 |
G01R31/02;G01R31/04;H02H3/00;(IPC1-7):G01R31/02 |
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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