METHOD FOR AVERAGING OUT OVERALL BURN UP IN AN ELECTROMAGNETIC SWITCHING DEVICE AND A CORRESPONDING ELECTROMAGNETIC SWITCHING DEVICE
摘要
<p>An electromagnetic switching device includes a contact arrangement with three contacts which couple a three-phase load to three phases of a three-phase power supply system, and disconnect the three-phase load from the three phases. Switching erosion takes place on the contacts. An overall erosion is determined for each contact, and is supplied to a drive circuit. The contact arrangement is operated by the drive circuit as a function of the overall erosion such that the overall erosion of the contacts are approximated to one another.</p>
申请公布号
EP1218902(A1)
申请公布日期
2002.07.03
申请号
EP20000982978
申请日期
2000.10.09
申请人
SIEMENS AKTIENGESELLSCHAFT
发明人
ELSNER, NORBERT;GRIEPENTROG, GERD;HERBST, REINHARD;MAIER, REINHARD;MITLMEIER, NORBERT;RUNGGALDIER, DIETHARD;SCHRECKINGER, CHRISTIAN;STREICH, BERNHARD