Experimental evaluation of the endangerment of ball bearings due to inverter-induced bearing currents

被引：0
|
作者：
Muetze, A [1 ]
Binder, A [1 ]
Vogel, H [1 ]
Hering, J [1 ]
机构：
[1] Tech Univ Darmstadt, D-64283 Darmstadt, Germany
来源：
CONFERENCE RECORD OF THE 2004 IEEE INDUSTRY APPLICATIONS CONFERENCE, VOLS 1-4: COVERING THEORY TO PRACTICE | 2004年
关键词：
variable speed drives; inverter-induced bearing currents; apparent bearing current density; bearing fluting;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Statements on the mechanism of the endangerment of bearings due to inverter-induced bearing currents nearly do not exist today. Therefore, a series of 22 test runs for bearing damage assessment was carried out. The influence of bearing current amplitude and type, calculated apparent bearing current density, time of operation and inverter switching frequency on bearing damage was investigated. The degree of electrical bearing stress "W' was introduced. The degree of melting of the bearing race surface and the grade of reduction of the carboxylic acid, which is an indicator for the deterioration of the grease, depend on W.
引用
收藏
页码：1989 / 1995
页数：7
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