Insulation problems in medium-voltage stator coils under fast repetitive voltage pulses

被引：41

作者：

Haq, Saeed Ul ^{[1
]}

Jayaram, Shesha H. ^{[1
]}

Cherney, Edward A. ^{[1
]}

机构：

[1] Univ Waterloo, Dept Elect & Comp Engn, Waterloo, ON N2L 3G1, Canada

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2008年 / 44卷 / 04期

基金：

加拿大自然科学与工程研究理事会;

关键词：

adjustable-speed drives; converters; dielectric heating; groundwall insulation; induction motor; partial discharge (PD); pulse voltage; solid-state switches;

D O I：

10.1109/TIA.2008.926305

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, the degradation processes in stator-bar groundwall insulation that is subjected to steep-front voltage pulses, at different temperatures, are studied. The test conditions include pulse voltage amplitudes up to 6 kV(p) and pulse switching frequencies up to 3 kHz in ambient temperatures of 23 degrees C, 120 degrees C, and 155 degrees C. During the aging process, the surface temperature is monitored with an infrared camera to determine the regions with highest temperatures and the partial discharge (PD) activity. The visual examination of failed bars confirmed that the groundwall insulation in these regions is degraded.

引用

页码：1004 / 1012

页数：9

共 34 条

[1]

Allison JA, 2000, PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON PROPERTIES AND APPLICATIONS OF DIELECTRIC MATERIALS, VOLS 1 & 2, P860, DOI 10.1109/ICPADM.2000.876364

[2]

[Anonymous], THESIS MISSISSIPPI S

[3]

[Anonymous], 2006, 600341841 IEC

[4]

BOGH D, 2004, P IEEE PCIC, P241

[5] A comparison between insulation systems available for PWM-inverter-fed motors [J].

Bonnett, AH .

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 1997, 33 (05) :1331-1341

[6] Power electronics for very high power applications [J].

Carroll, EI .

POWER ENGINEERING JOURNAL, 1999, 13 (02) :81-87

[7] Stator winding failures: Contamination, surface discharge, tracking [J].

Dymond, JH ;

Stranges, N ;

Younsi, K ;

Hayward, JE .

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 2002, 38 (02) :577-583

[8]

ESPINO F, 2006, THESIS

[9]

GRUBELNIK J, 2005, P IEEE EIC, P97

[10] Medium term aging characterization of enamelled wires for high frequency applications [J].

Guastavino, F ;

Coletti, G ;

Torello, E .

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2005, 12 (03) :524-529

← 1 2 3 4 →