发明名称 TIME DELAY CONTROL SYSTEM FOR DIRECTIONAL RELAYS WITH ELECTRICAL INTERLOCK
摘要 A solid state control circuit for completing selectively energizing circuits for the operating coils of directional relays in a motor control system which affords a predetermined time delay on energization for each relay, and electrical lockout against simultaneous energization of one relay operating coil while the other remains energized and vice versa.
申请公布号 US3671816(A) 申请公布日期 1972.06.20
申请号 USD3671816 申请日期 1970.05.21
申请人 CUTLER-HAMMER INC. 发明人 GERALD R. RITZOW
分类号 H02P23/00;H03K17/28;(IPC1-7):H01H47/22 主分类号 H02P23/00
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