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    Preventive maintenance tapping and duty cycle monitor for voltage regulator
    2.
    发明授权
    Preventive maintenance tapping and duty cycle monitor for voltage regulator 有权
    电压调节器的预防性维护点火和占空比监控

    公开(公告)号：US07408275B2

    公开(公告)日：2008-08-05

    申请号：US11019527

    申请日：2004-12-23

    申请人： Augusto D. Hernandez, Jr., legal representative ,  Donald A. Down ,  Fred J. Rapant ,  Richard J. Kaluzny

    发明人： Augusto D. Hernandez

    IPC分类号： H01H1/50 ,  H01H19/00 ,  H01R39/00

    CPC分类号： G05F1/147 ,  G05F1/14 ,  H01H2009/0061 ,  Y10T307/702 ,  Y10T307/924

    摘要： Automatically changing the tap position in a load tap changer includes noting a polarity of a first tap position of a load tap changer. A duration for which one or more consecutive tap positions of the load tap changer collectively have had the noted polarity also is noted. The one or more consecutive tap positions include the first tap position. The duration for which the one or more consecutive tap positions collectively have had the noted polarity is compared to a threshold value. A change is made from the first tap position to a second tap position with a polarity that is different than the noted polarity when the duration for which the one or more consecutive tap positions collectively have had the noted polarity is longer than the threshold value. A change may be made from the second tap position back to the first tap position.

    摘要翻译： 在有载分接开关中自动更改分接位置包括注意到有载分接开关的第一个分接位置的极性。 注意到有效抽头变换器的一个或多个连续抽头位置集中地具有所述极性的持续时间。 一个或多个连续的抽头位置包括第一抽头位置。 将一个或多个连续抽头位置集中地具有所述极性的持续时间与阈值进行比较。 当一个或多个连续的抽头位置具有所指示的极性的持续时间长于阈值时，从第一抽头位置到第二抽头位置的变化具有不同于所述极性的极性。 可以从第二分接位置返回到第一分接位置进行改变。

    Preventive maintenance tapping and duty cycle monitor for voltage regulator
    4.
    发明授权
    Preventive maintenance tapping and duty cycle monitor for voltage regulator 有权
    电压调节器的预防性维护点火和占空比监控

    公开(公告)号：US07482714B2

    公开(公告)日：2009-01-27

    申请号：US11139969

    申请日：2005-05-31

    申请人： Fred J. Rapant ,  Richard J. Kaluzny ,  Donald A. Down ,  Augusto D. Hernandez, Jr., legal representative

    发明人： Augusto D. Hernandez

    IPC分类号： H01H1/60 ,  H01H9/30 ,  H01H7/00 ,  H01H19/00

    CPC分类号： H01H1/0015 ,  H01F29/04 ,  H01H1/60 ,  H01H2009/0061 ,  Y10T307/911 ,  Y10T307/918 ,  Y10T307/924 ,  Y10T307/931 ,  Y10T307/951

    摘要： A preventive maintenance tapping technique includes noting a tap position of a load tap changer and noting a duration that the tap position has been held. The duration that the tap position has been held is compared to a threshold value, and the tap position is changed if the tap position has been held for longer than the threshold value. Similarly, a duty cycle monitoring technique for monitoring life of load tap changer contacts includes detecting an arcing event. Arcing surfaces involved in the arcing event are identified and the effects of the arcing event on the arcing surfaces are calculated. Estimates of the erosion on the arcing surfaces are updated, and the estimates are compared to a threshold value. A signal for maintenance is generated when the estimate exceeds the threshold value.

    摘要翻译： 预防性维护攻丝技术包括注意有载分接开关的抽头位置并注意到抽头位置被保持的持续时间。 将抽头位置保持的持续时间与阈值进行比较，并且如果抽头位置被保持长于阈值，则抽头位置被改变。 类似地，用于监测有载分接开关触点寿命的占空比监视技术包括检测电弧事件。 识别涉及电弧事件的电弧曲面，并计算电弧放电事件对电弧曲面的影响。 更新对电弧表面的侵蚀的估计，并将估计值与阈值进行比较。 当估计值超过阈值时，产生用于维护的信号。