公开(公告)号：US09588182B2

公开(公告)日：2017-03-07

申请号：US13738688

申请日：2013-01-10

Applicant: General Electric Company

Inventor： Silvio Colombi ,  Marco Crespan

IPC: G01F22/02 ,  G01R31/36 ,  G01R31/02 ,  G06F17/10 ,  G01R31/42

CPC classification number: G01R31/3624 ,  G01R31/028 ,  G01R31/42 ,  G06F17/10

Abstract: Systems, methods, and devices are provided for estimating when preventive maintenance of power capacitors is called for. Such a system may include, for example, a voltage sensor, a current sensor, and data processing circuitry. The voltage sensor may measure a voltage difference across a phase of a power capacitor. The current sensor may measure a current across the phase of the power capacitor. The data processing circuitry to determine a first instantaneous indication of a difference between a nominal capacitance of the power capacitor and an actual value of the power capacitor based at least in part on the measured first voltage difference and first current.

Abstract translation: 提供系统，方法和设备，用于估计何时需要维护电力电容器。 这样的系统可以包括例如电压传感器，电流传感器和数据处理电路。 电压传感器可以测量功率电容器两相的电压差。 电流传感器可以测量跨过功率电容器的相位的电流。 数据处理电路，用于至少部分地基于所测量的第一电压差和第一电流来确定功率电容器的标称电容和功率电容器的实际值之间的差的第一瞬时指示。

公开(公告)号：US20140012522A1

公开(公告)日：2014-01-09

申请号：US13738688

申请日：2013-01-10

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Silvio Colombi ,  Marco Crespan

IPC: G01R31/36 ,  G06F17/10

CPC classification number: G01R31/3624 ,  G01R31/028 ,  G01R31/42 ,  G06F17/10

Abstract: Systems, methods, and devices are provided for estimating when preventive maintenance of power capacitors is called for. Such a system may include, for example, a voltage sensor, a current sensor, and data processing circuitry. The voltage sensor may measure a voltage difference across a phase of a power capacitor. The current sensor may measure a current across the phase of the power capacitor. The data processing circuitry to determine a first instantaneous indication of a difference between a nominal capacitance of the power capacitor and an actual value of the power capacitor based at least in part on the measured first voltage difference and first current.

Abstract translation: 提供系统，方法和设备，用于估计何时需要维护电力电容器。 这样的系统可以包括例如电压传感器，电流传感器和数据处理电路。 电压传感器可以测量功率电容器两相的电压差。 电流传感器可以测量跨过功率电容器的相位的电流。 数据处理电路，用于至少部分地基于所测量的第一电压差和第一电流来确定功率电容器的标称电容和功率电容器的实际值之间的差的第一瞬时指示。