Off-line PD Testing of Converter-fed Wire-wound Motors: When IEC TS 60034-18-41 May Fail?

被引：30

作者：

Cavallini, A. ^{[1
]}

Lindell, E. ^{[1
]}

Montanari, G. C. ^{[1
]}

Tozzi, M. ^{[2
]}

机构：

[1] Univ Bologna, DIE LIMAT, I-40136 Bologna, Italy

[2] TechImp Spa, I-40069 Zola Predosa, Italy

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2010年 / 17卷 / 05期

关键词：

Partial discharges; Converter; Testing; PWM; Square voltage; Turn insulation; Impulsive voltage; PROPAGATION; INSULATION;

D O I：

10.1109/TDEI.2010.5595540

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：

This paper reports and discusses qualification and type test procedures for random wound motors as specified in IEC Technical Specification 60034-18-41. Since laboratory tests dealing with off-line partial discharges measurements followed by life tests showed that motors qualified as good can fail in very short times, an extensive investigation on the causes of such discrepancy and, in particular, on the differences existing between the stresses applied during off-line tests and in service is described. In addition, the results of partial discharge measurements performed on crossed pairs are presented, highlighting how the differences in the applied voltage waveform can influence the Repetitive Partial Discharge Inception Voltage. Suggestions to improve the off-line test procedure and related equipment are eventually discussed.

引用

页码：1385 / 1395

页数：11