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    • 3. 发明授权
    • Configurable single/multi-phase overload relay
    • 可配置单/多相过载继电器
    • US06459557B1
    • 2002-10-01
    • US09583702
    • 2000-05-31
    • Steven T. HaensgenRonald N. Jansen
    • Steven T. HaensgenRonald N. Jansen
    • H02H300
    • H02H3/006H01H2300/03Y02B70/3241Y02B90/224Y04S20/14Y04S20/227
    • A configurable overload relay selectively operable in a single-phase mode of operation and a multi-phase mode of operation is configured to sense current flow through power conductors. The relay is further configured to determine a parameter related to the current flow, such as average current, vector sum of phase currents, and current imbalance, based on selection of either the single-phase or multi-phase mode of operation. Regardless of the selected mode of operation, the relay can provide protection for multiple types of power conductor fault conditions, including ground faults, overloads, and phase loss. The relay further can be configured to provide a reporting signal indicative of the value of the determined current-related parameter and/or the occurrence of the fault condition.
    • 可选择地以单相工作模式操作和多相工作模式操作的可配置过载继电器被配置为感测通过电力导体的电流。 继电器还被配置为基于选择单相或多相工作模式来确定与电流相关的参数,例如平均电流,相电流的矢量和和电流不平衡。 无论选定的运行方式如何,继电器都可以为多种类型的电力导体故障条件提供保护,包括接地故障,过载和相位损失。 继电器还可以被配置为提供指示所确定的电流相关参数的值的报告信号和/或故障状况的发生。