公开(公告)号：US5267117A

公开(公告)日：1993-11-30

申请号：US723242

申请日：1991-06-28

申请人： Clifford B. Moore

发明人： Clifford B. Moore

IPC分类号： H01H33/32 ,  H02H3/00 ,  H02H3/26

CPC分类号： H01H33/32 ,  H02H3/265 ,  H02H3/00

摘要： The present invention provides a simple, reliable, comprehensive electrical phase and amplitude fault detection and response system. The system includes means for detecting any of various electrical faults, such as impermissibly low voltage levels, impermissibly high voltage levels, phase dropouts, single-phasing, phase reversals, and/or total power loss. Further, the invention provides both fault detection and response customized to the plant equipment, providing power cut-off an appropriate time after a given fault is detected, and preventing premature power restoration when the line power has not been fully returned to normal. The system provides the fault detection and response functions without the need for electrical power of its own, avoiding dependence on line voltage, batteries or back-up generators. This functioning independent of the presence of electrical power is enabled through use of a pneumatic arrangement for interrupting power to plant equipment.

摘要翻译： 本发明提供了一种简单，可靠，综合的电相和振幅故障检测和响应系统。 该系统包括用于检测诸如不允许的低电压电平，不可允许的高电压电平，相位丢失，单相，相位反转和/或总功率损耗的各种电气故障中的任何一种的装置。 此外，本发明提供了针对工厂设备定制的故障检测和响应，在给定故障被检测到之后提供断电适当的时间，并且当线路​​功率未完全恢复正常时防止过早恢复功率。 该系统提供故障检测和响应功能，无需自己的电源，避免对线路电压，电池或备用发电机的依赖。 通过使用用于中断设备设备的电力的气动装置，可实现与电力存在无关的功能。