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1.发明授权Method and circuit breaker for reducing arc flash during maintenance in a low voltage power circuit 有权在低电压电路维护期间的方法和电路断路器电弧火花还原
公开(公告)号：EP1583131B1
公开(公告)日：2007-09-12
申请号：EP05006900.4
申请日：2005-03-30
申请人： Eaton Corporation
发明人： Shipp, David Doyle , Matsko, Joseph Joseph , Lagree, James Leo , Hodder, Michael Blair , Vaill, Ronald Erie
CPC分类号： H02H9/00 , H01H71/7409 , H01H2071/006 , H02H3/006
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公开(公告)号：EP0978919A3
公开(公告)日：2003-01-02
申请号：EP99115428.7
申请日：1999-08-04
申请人： EATON CORPORATION
IPC分类号： H02H9/08
CPC分类号： H02H9/08 , E21B43/128 , E21B47/122
摘要： In accordance with the invention, a normally ungrounded power system for a oil well is provided which includes power transformer above ground and a pump motor below ground. There is provided a signal system which includes a below ground sensor system and an above ground signal conditioning and monitoring unit where the sensor system utilizes the main power lines for carrying the sensor signals. A connectable high resistance grounding scheme is provided to the aforementioned floating system, so that in the event of a arcing ground fault or similar occurrence the system may be immediately grounded, thus compensating for the effects of the arcing ground fault and providing personnel safety and electrical equipment protection. When the high resistance grounding system is not utilized the aforementioned signals from the sensors are easily carried by the power conductors.
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3.发明公开Method and circuit breaker for reducing arc flash during maintenance in a low voltage power circuit 有权在低电压电路维护期间的方法和电路断路器电弧火花还原
公开(公告)号：EP1583131A1
公开(公告)日：2005-10-05
申请号：EP05006900.4
申请日：2005-03-30
申请人： Eaton Corporation
发明人： Shipp, David Doyle , Matsko, Joseph Joseph , Lagree, James Leo , Hodder, Michael Blair , Vaill, Ronald Erie
CPC分类号： H02H9/00 , H01H71/7409 , H01H2071/006 , H02H3/006
摘要： Maintenance trip functions override the normal or specified trip functions of a low voltage circuit breaker to reduce pickup currents and/or time delays to effect faster trips, which reduces arc energy produced by faults during maintenance or testing on a live circuit breaker.
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公开(公告)号：EP0978919A2
公开(公告)日：2000-02-09
申请号：EP99115428.7
申请日：1999-08-04
申请人： EATON CORPORATION
IPC分类号： H02H9/08
CPC分类号： H02H9/08 , E21B43/128 , E21B47/122
摘要： In accordance with the invention, a normally ungrounded power system for a oil well is provided which includes power transformer above ground and a pump motor below ground. There is provided a signal system which includes a below ground sensor system and an above ground signal conditioning and monitoring unit where the sensor system utilizes the main power lines for carrying the sensor signals. A connectable high resistance grounding scheme is provided to the aforementioned floating system, so that in the event of a arcing ground fault or similar occurrence the system may be immediately grounded, thus compensating for the effects of the arcing ground fault and providing personnel safety and electrical equipment protection. When the high resistance grounding system is not utilized the aforementioned signals from the sensors are easily carried by the power conductors.
摘要翻译： 根据本发明，提供一种用于油井的通常不接地的电力系统，其包括地面上的电力变压器和地下的泵电动机。 提供了一种信号系统，其包括地下传感器系统和地面信号调理和监测单元，其中传感器系统利用主电力线承载传感器信号。 对上述浮动系统提供可连接的高电阻接地方案，使得在发生电弧接地故障或类似发生的情况下，系统可以立即接地，从而补偿电弧接地故障的影响并提供人员安全和电气 设备保护。 当不使用高电阻接地系统时，来自传感器的上述信号容易被电力导体承载。
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