发明名称 |
Method and system for on-line monitoring of bearing insulation in an electrical generatior |
摘要 |
The present invention monitors an electrical generator (10) to provide an indication of a problem in the generator's bearing insulation (26), such as insulation damage or insulation bridging, and sets an alarm to warn an operator of the problem, thereby avoiding damage to the electrical generator (10). Methods and systems consistent with the present invention identify problems with bearing insulation (26) by monitoring the naturally occurring shaft voltage on the generator rotor (12) and by setting an alarm if the shaft voltage drops below a predetermined value.
|
申请公布号 |
US2004059523(A1) |
申请公布日期 |
2004.03.25 |
申请号 |
US20020247111 |
申请日期 |
2002.09.19 |
申请人 |
SIEMENS WESTINGHOUSE POWER CORPORATION |
发明人 |
LAU JAMES FREDERICK;NIEVES ABRAHAM |
分类号 |
G01B5/28;G01B5/30;G01R31/12;G01R31/34;G06F19/00;(IPC1-7):G01B5/28 |
主分类号 |
G01B5/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|