发明名称 |
Programmable bus-tie relay having a plurality of selectable setting groups |
摘要 |
A bus-tie relay apparatus which includes a multi-position mechanical switch (54) and a logic circuit (56) responsive to the position of the mechanical switch (54) for producing digital signals on five digital lines (58), wherein a valid digital signal comprises the presence of high conditions on two, and two only, of said digital lines (58). A sensor (80) senses the condition of the digital lines (58) and retrieves the values of a relay element setting group from memory associated with that digital signal. A plurality of such relay element setting groups are stored in the apparatus, each one of which comprises values corresponding to the characteristics of an inplace relay associated with a particular one transmission line in a group thereof.
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申请公布号 |
US5041737(A) |
申请公布日期 |
1991.08.20 |
申请号 |
US19900470061 |
申请日期 |
1990.01.25 |
申请人 |
SCHWEITZER ENGINEERING LABORATORIES, INC. |
发明人 |
SCHWEITZER, III, EDMUND O.;ROBERTS, JEFFREY B. |
分类号 |
H02H3/00 |
主分类号 |
H02H3/00 |
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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