Impact of slot discharges and vibration sparking on stator winding life in large generators

被引：24

作者：

Stone, G. C.

Maughan, C. V.

Nelson, D.

Schultz, R. R.

机构：

来源：

IEEE ELECTRICAL INSULATION MAGAZINE | 2008年 / 24卷 / 05期

关键词：

slot discharge; vibration sparking; spark erosion; stator winding;

D O I：

10.1109/MEI.2008.4635657

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：

The stator winding insulation system in generators rated 6 kV and above is usually very reliable, with an expected life of 30 years or more. However, there are a large number of failure processes that gradually reduce the electrical and mechanical strength of the insulation to the point that insulation failure will eventually occur. Some of the failure processes are the result of various design or manufacturing issues. Most other failures that gradually age the insulation are the result of the thermal, mechanical, electrical, and environmental stresses that occur in operation [1], [2]. © 2008 IEEE.

引用

页码：14 / 21

页数：8

共 9 条

[1] The application of conductive and stress grading tapes to vacuum pressure impregnated, high voltage stator coils [J].

Emery, FT .

IEEE ELECTRICAL INSULATION MAGAZINE, 1996, 12 (04) :15-22

[2]

JACKSON RJ, 1982, P IEE B, P159

[3]

JOHNSON J, 1951, T AIEE 2, P1993

[4] Design-dependent slot discharge and Vibration Sparking on high voltage windings [J].

Liese, Manfred ;

Brown, Martin .

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2008, 15 (04) :927-932

[5]

LONSETH P, 1976, P IEEE INT S EL INS

[6]

Lyles J. F., 1985, Proceedings of the 17th Electrical/Electronics Insulation Conference (Cat. No.85CH2133-7), P244

[7]

Maughan C. V., 2005, International Electric Machines and Drives Conference (IEEE Cat. No.05EX1023C), P1927, DOI 10.1109/IEMDC.2005.195983

[8]

Stone G., 2004, Electrical Insulation for Rotating Machines-Design Evaluation Aging Testing and Repair

[9]

TIMPERLEY JE, 2003, EPRI GEN ONL MON DIA

← 1 →