发明名称 |
DETECTION OF A MISSING STATOR SLOT WEDGE IN AN ELECTRICAL MACHINE |
摘要 |
A missing stator slot wedge in an electrical machine can be detected by analyzing a current spectrum of the machine in a high frequency area. A current spectrum is provided from a current measurement, and values of the current spectrum in the high frequency area used to determine whether a stator slot wedge is missing or not. The conclusion can be based on values of a relative current amplitude IdB or on presence of certain harmonics in the high frequency area. |
申请公布号 |
KR20130076887(A) |
申请公布日期 |
2013.07.08 |
申请号 |
KR20137011767 |
申请日期 |
2010.10.07 |
申请人 |
ABB RESEARCH LTD. |
发明人 |
PINTO CAJETAN;RODRIGUEZ PEDRO |
分类号 |
G01R31/34;G01R19/00;G01R23/16 |
主分类号 |
G01R31/34 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|