Low Frequency Dielectric Response of Thermally Degraded Epoxy-Mica Insulation

被引：3

作者：

Rao, B. Nageshwar ^{[1
]}

Sudhindra, A. ^{[1
]}

Ramachandra, B. ^{[2
]}

机构：

[1] Cent Power Res Inst, PB 8066,Prof Sir CV Raman Rd, Bangalore 560080, Karnataka, India

[2] PES Coll Engn, Mandya, India

来源：

ICPADM 2009: PROCEEDINGS OF THE 9TH INTERNATIONAL CONFERENCE ON PROPERTIES AND APPLICATIONS OF DIELECTRIC MATERIALS, VOLS 1-3 | 2009年

关键词：

Epoxy-mica; dielectric spectroscopy; low frequency dielectric response; interfacial polarization;

D O I：

10.1109/ICPADM.2009.5252442

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：

Dielectric spectroscopy measurement is essentially a dissipation factor measurement performed at multiple frequencies ranging from few mHz to kHz. Low frequency dielectric spectroscopy measurement has been performed on number of sound and thermally aged epoxy-mica representative laminates and on actual motor coils. Dielectric loss angle, Power Factor, capacitance was measured at frequencies ranging from 1 mHz to 1 kHz. The dielectric response exhibited by of thermally aged epoxy-mica insulation at lower frequencies shows the predominant influence of interfacial polarization on the total dielectric response of epoxy-mica layer.

引用

页码：1026 / +

页数：2

共 7 条

[1] Application of some novel non-destructive diagnostic tests for condition assessment of stator coils and bars following voltage endurance tests [J].

Cherukupalli, S ;

Huber, RA ;

Tan, C ;

Halldorson, GL .

CONFERENCE RECORD OF THE 2002 IEEE INTERNATIONAL SYMPOSIUM ON ELECTRICAL INSULATION, 2002, :565-569

[2] IMPEDANCE AND DIELECTRIC-SPECTROSCOPY REVISITED - DISTINGUISHING LOCALIZED RELAXATION FROM LONG-RANGE CONDUCTIVITY [J].

GERHARDT, R .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1994, 55 (12) :1491-1506

[3]

KELEN A, 1987, CIGRE S, V597

[4]

Mcdonald J.R., 1987, IMPEDANCE SPECTROSCO

[5]

SEDDLING HG, 2002, IR ROT MACH C JUN SA

[6]

SIMONS JS, 1980, IEE P B, V127

[7]

STARK KH, 1962, PROCEEDINGS A, P71

← 1 →