公开(公告)号：WO2012047605A3

公开(公告)日：2012-06-07

申请号：PCT/US2011053352

申请日：2011-09-27

Applicant: EMERSON CLIMATE TECHNOLOGIES ,  JAYANTH NAGARAJ B ,  WARNER WAYNE R

Inventor： JAYANTH NAGARAJ B ,  WARNER WAYNE R

IPC: H02H7/08 ,  H02H5/04 ,  H02H7/085

CPC classification number: H02H7/0852 ,  F25B49/005 ,  F25B2700/151 ,  F25B2700/2106 ,  F25B2700/21156 ,  F25D29/006 ,  H02H3/08 ,  H02H5/041 ,  H02H7/0833

Abstract: A system for protecting a three-phase electric motor of a compressor, the motor receiving first, second, and third phases from a three-phase power supply, the system including a single-phase line break protector, a first current sensor, and a control module. The single-phase line break protector disconnects the motor from the first phase in response to a temperature being greater than a predetermined temperature threshold. The first current sensor measures a current through the single-phase line break protector. The control module determines a current value based on the measured current, and disconnects the motor from the second and third phases in response to the current value being less than or equal to a predetermined threshold.

Abstract translation: 一种用于保护压缩机的三相电动机的系统，所述电动机从三相电源接收第一相，第二相和第三相，所述系统包括单相线路断路保护器，第一电流传感器和 控制模块。 响应于大于预定温度阈值的温度，单相线路断路保护器将电动机从第一相断开。 第一个电流传感器测量通过单相线路断路保护器的电流。 控制模块基于测量的电流来确定电流值，并且响应于电流值小于或等于预定阈值而断开电动机与第二相和第三相的连接。

公开(公告)号：EP2622698A4

公开(公告)日：2017-11-08

申请号：EP11831263

申请日：2011-09-27

Applicant: EMERSON CLIMATE TECHNOLOGIES

Inventor： JAYANTH NAGARAJ B ,  WARNER WAYNE R

IPC: H02H3/08 ,  H02H5/04 ,  H02H7/08 ,  H02H7/085

CPC classification number: H02H7/0852 ,  F25B49/005 ,  F25B2700/151 ,  F25B2700/2106 ,  F25B2700/21156 ,  F25D29/006 ,  H02H3/08 ,  H02H5/041 ,  H02H7/0833