公开(公告)号：WO2009105642A3

公开(公告)日：2009-08-27

申请号：PCT/US2009/034679

申请日：2009-02-20

Applicant: EMERSON CLIMATE TECHNOLOGIES, INC. ,  JAYANTH, Nagaraj ,  RAMAYYA, George

Inventor： JAYANTH, Nagaraj ,  RAMAYYA, George

IPC: G01R19/15 ,  G01R19/155

Abstract: A compressor monitoring system includes current and voltage monitors, current and voltage averaging modules, a control module, and a switch. The current monitor measures a current drawn by a motor of a compressor. The current averaging module generates first and second average current values based on the current measured by the current monitor. The voltage monitor measures a utility power voltage. The voltage averaging module generates first and second average voltage values based on the voltage measured by the voltage monitor. The control module selectively generates a fault signal when a first ratio is greater than a first predetermined threshold and a second ratio is less than a second predetermined threshold. The first ratio is based on the first and second average current values. The second ratio is based on the first and second average voltage values. The switch deactivates the motor when the fault signal is generated.

公开(公告)号：WO2009105642A2

公开(公告)日：2009-08-27

申请号：PCT/US2009034679

申请日：2009-02-20

Applicant: EMERSON CLIMATE TECHNOLOGIES ,  JAYANTH NAGARAJ ,  RAMAYYA GEORGE

Inventor： JAYANTH NAGARAJ ,  RAMAYYA GEORGE

IPC: G01R19/15

CPC classification number: H02H7/09 ,  F25B49/022 ,  F25B2500/19 ,  F25B2600/0251 ,  F25B2700/13 ,  F25B2700/151 ,  F25B2700/2115 ,  G01R19/10 ,  G01R19/16538 ,  G01R31/343 ,  H02H7/08 ,  H02H7/20 ,  H02P29/0241 ,  Y10T307/406 ,  Y10T307/549 ,  Y10T307/724 ,  Y10T307/729 ,  Y10T307/826 ,  Y10T307/832

Abstract: A compressor monitoring system includes current and voltage monitors, current and voltage averaging modules, a control module, and a switch. The current monitor measures a current drawn by a motor of a compressor. The current averaging module generates first and second average current values based on the current measured by the current monitor. The voltage monitor measures a utility power voltage. The voltage averaging module generates first and second average voltage values based on the voltage measured by the voltage monitor. The control module selectively generates a fault signal when a first ratio is greater than a first predetermined threshold and a second ratio is less than a second predetermined threshold. The first ratio is based on the first and second average current values. The second ratio is based on the first and second average voltage values. The switch deactivates the motor when the fault signal is generated.

Abstract translation: 压缩机监控系统包括电流和电压监视器，电流和电压平均模块，控制模块和开关。 当前的监视器测量由压缩机的电动机吸出的电流。 当前平均模块基于由当前监视器测量的电流产生第一和第二平均电流值。 电压监视器测量公用电源电压。 电压平均模块基于由电压监视器测量的电压产生第一和第二平均电压值。 当第一比率大于第一预定阈值并且第二比率小于第二预定阈值时，控制模块选择性地产生故障信号。 第一比率基于第一和第二平均电流值。 第二比率基于第一和第二平均电压值。 当故障信号产生时，开关关闭电机。