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    • 8. 发明授权
    • Control circuit for resetting drawout circuit breaker UVR solenoid
    • 复位断路器UVR电磁阀的控制电路
    • US4356526A
    • 1982-10-26
    • US268317
    • 1981-05-29
    • Ronald R. Russell
    • Ronald R. Russell
    • H02H3/24H02H3/247
    • H02H3/24H02H3/247
    • A control circuit utilizes a system voltage monitoring control relay for applying a DC control voltage across a UVR solenoid and a voltage dropping resistor to maintain the UVR in its reset condition in the absence of an undervoltage condition. An RC network maintains the UVR reset condition for momentary dips in the system voltage. If the UVR does drop out to trip its circuit breaker, a second relay temporarily switches out the dropping resistor to render the control voltage capable of electromagnetically resetting the UVR. To accommodate drawout breaker applications, means is provided to sense when the UVR is reconnected to the control circuit pursuant to automatically initiating a UVR reset function via the second relay.
    • 控制电路利用系统电压监视控制继电器,通过UVR电磁线圈和降压电阻器施加直流控制电压,以在没有欠电压状况的情况下将UVR保持在其复位状态。 RC网络维持系统电压瞬时下降的UVR复位条件。 如果UVR断路器跳闸,第二个继电器暂时切断掉掉电阻,使控制电压能够电磁复位UVR。 为了适应抽出式断路器应用,提供了通过第二继电器自动启动UVR复位功能来检测何时UVR重新连接到控制电路的装置。
    • 10. 发明授权
    • Zone selective interlock module for use with static trip circuit breakers
    • 区域选择性互锁模块,用于静态跳闸断路器
    • US4468714A
    • 1984-08-28
    • US438203
    • 1982-11-01
    • Ronald R. Russell
    • Ronald R. Russell
    • H02H7/30H02H3/00G01R27/00H02H3/20H02H7/00
    • H02H7/30
    • A zone selective interlock module is interposed between a pair of upstream and downstream static trip circuit breakers for controlling the short-time and ground fault zone selective interlock functions of the breakers. When a signal is received from a downstream static trip breaker, the module transmits a low-level interlock signal to a static trip breaker upstream. The interlock signal, in turn, activates the programmer circuit of the upstream breaker causing a shift in the upstream programmer time delay characteristics. The module also provides an energy storage feature to ensure the integrity of the interlock function in the event that the control power is lost upon the occurrence of a fault.
    • 区域选择性互锁模块插入在一对上游和下游静态跳闸断路器之间,用于控制断路器的短时和接地故障区选择性互锁功能。 当从下游静态跳闸断路器接收到信号时,模块向上游的静态跳闸断路器发送低电平互锁信号。 互锁信号又激活上游断路器的编程器电路,导致上游编程器延时特性的偏移。 该模块还提供了一种能量存储功能,以在发生故障时控制电源丢失的情况下确保互锁功能的完整性。