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1.发明申请APPARATUS AND METHOD FOR ACTIVE CIRCUIT PROTECTION OF DOWNHOLE ELECTRICAL SUBMERSIBLE PUMP MONITORING GAUGES 有权卧式电气不可控泵监测仪的主动电路保护装置及方法公开(公告)号：US20080196887A1
公开(公告)日：2008-08-21
申请号：US12033819
申请日：2008-02-19
IPC分类号： E21B47/00
CPC分类号： E21B43/128 , F04D13/10 , F04D15/0077
摘要： Embodiments of the present invention beneficially provide circuits and methods which isolate downhole electronics of a well pump assembly from a power surge. The pump assembly includes a motor and a housing, including head, base, and manifold plate. The head has a hollow interior and a shoulder. The head is mounted to the motor so that, in operation, oil from the motor fills the interior of the head. The base has an outside diameter to fit snugly inside the head. The manifold plate is located between an upper end of the base and the shoulder of the head so that the axis of the manifold plate is perpendicular to the axis of housing. A gauge circuit and an isolation circuit are mounted to the manifold plate. The isolation circuit includes active semiconductor elements to detect excessive voltage and to protect the gauge circuit from the excessive voltage.
摘要翻译： 本发明的实施例有利地提供将井泵组件的井下电子器件与电源浪涌隔离的电路和方法。 泵组件包括电动机和壳体，包括头部，底部和歧管板。 头部有一个中空的内部和一个肩膀。 头部安装到电机上，使得在操作中，来自电机的油填充头部的内部。 底座有一个外径，以贴合在头部内。 歧管板位于基座的上端和头部的肩部之间，使得歧管板的轴线垂直于壳体的轴线。 量规电路和隔离电路安装在歧管板上。 隔离电路包括有源半导体元件，用于检测过电压并保护量规电路免受过电压的影响。
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