<p>The present techniques include methods and systems for detecting the grounding condition of an electrical system to automatically determine a suitable electrical drive configuration. The drive includes a test resistor which may be connected or disconnected from the drive to measure different drive voltages. The measured drive voltages are analyzed to determine a type of grounding configuration of the electrical system in which the drive is to be installed. Embodiments also include determining ground resistance condition such as a high resistance ground (HRG) fault or a ground resistance fault when the drive is in operation.</p>
申请公布号
EP2506408(A2)
申请公布日期
2012.10.03
申请号
EP20120162607
申请日期
2012.03.30
申请人
ROCKWELL AUTOMATION TECHNOLOGIES, INC.
发明人
WEI, LIXIANG;KIRSCHNIK, DAVID W.;LUKASZEWSKI, RICHARD A.;SKIBINSKI, GARY L.