发明名称 |
Double insulated protected system providing electrical safety and instrumentation quality power grounding |
摘要 |
A double insulating protected system for use in coupling an instrumentation system to a remote power source so as to test an experimental system without posing life-threatening hazards. Connection between the instrumentation system and power source is accomplished by a pair of cascaded isolating transformers, with the connections between the two transformers being inaccessable, such as by a separate housing. The instrumentation system equipment ground is coupled to the experimental system equipment ground via a drain conductor so as to reference the former system to the same potential as that of the latter. The system provides a double insulation system such that a primary-to-secondary, primary-to-frame, or secondary-to-frame fault occurring in either of the transformers, or similar faults in the instrumentation system, will not result in a life-threatening situation to the system user.
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申请公布号 |
US4591941(A) |
申请公布日期 |
1986.05.27 |
申请号 |
US19830534205 |
申请日期 |
1983.09.21 |
申请人 |
EG&G WASHINGTON ANALYTICAL SERVICES CENTER INC. |
发明人 |
GRUCHALLA, MICHAEL E.;KOLLER, DAVID C. |
分类号 |
H02H9/00;(IPC1-7):H02H3/00 |
主分类号 |
H02H9/00 |
代理机构 |
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