Invention Grant
US08698504B2 System for detection of a ground fault in a high resistance ground network
有权
用于检测高阻地面网络中接地故障的系统
- Patent Title: System for detection of a ground fault in a high resistance ground network
- Patent Title (中): 用于检测高阻地面网络中接地故障的系统
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Application No.: US12901512Application Date: 2010-10-09
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Publication No.: US08698504B2Publication Date: 2014-04-15
- Inventor: Lixiang Wei , Zhijun Liu , Brian Patrick Brown , David W. Kirschnik , Russ J. Kerkman , Richard A. Lukaszewski , Gary Skibinski , Carlos Daniel Rodriguez-Valdez
- Applicant: Lixiang Wei , Zhijun Liu , Brian Patrick Brown , David W. Kirschnik , Russ J. Kerkman , Richard A. Lukaszewski , Gary Skibinski , Carlos Daniel Rodriguez-Valdez
- Applicant Address: US OH Mayfield Heights
- Assignee: Rockwell Automation Technologies, Inc.
- Current Assignee: Rockwell Automation Technologies, Inc.
- Current Assignee Address: US OH Mayfield Heights
- Agency: Fletcher Yoder, P.C.
- Agent Alexander R. Kuszewski; John M. Miller
- Main IPC: G01R31/14
- IPC: G01R31/14
Abstract:
A method is provided for detection of a ground fault in a high resistance network in a voltage source power conversion circuit comprising a power converter that converts incoming AC power to DC power applied to a DC bus and an inverter that converts DC power from the DC bus to output AC power. The method includes detecting a midpoint-to-ground voltage between a low side of the DC bus and a ground potential and detecting the presence of a ground fault in a high resistance network based upon the detected midpoint-to-ground voltage.
Public/Granted literature
- US20120086458A1 SYSTEM FOR DETECTION OF A GROUND FAULT IN A HIGH RESISTANCE GROUND NETWORK Public/Granted day:2012-04-12
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