Insulation diagnosis for 220kV oil-immersed current transformer by frequency dielectric spectroscopy

2011 Electrical Insulation Conference, EIC 2011

Volumn , Issue , 2011, Pages 69-73

  Peng, Hua Dong ^a   Dong, Ming ^a   Ren, Ming ^a   Miao, Jin ^a   Zhang, Zhi ^b  

^a XI'AN JIAOTONG UNIVERSITY   (China)

^b STATE GRID CORPORATION OF CHINA   (China)

Author keywords

aging and moisture; current transformer; dissipation factor; frequency dielectric spectroscopy

Indexed keywords

COMPLEX PERMITTIVITY; CURRENT TRANSFORMER; DISSIPATION FACTOR; DISSIPATION FACTORS; ELECTRICAL EQUIPMENT; ENERGY EXPLOSION; FREQUENCY DIELECTRIC SPECTROSCOPY; FREQUENCY RANGES; FUNCTION OF FREQUENCY; GROUND FAULTS; HIGH VOLTAGE; IN-PHASE; INSULATION CONDITIONS; INSULATION DIAGNOSIS; NON DESTRUCTIVE; OIL CONDUCTIVITY; OIL PAPER INSULATION; POWER FREQUENCY; POWER UTILITY; TESTING TOOLS;

DIELECTRIC DEVICES; DIELECTRIC SPECTROSCOPY; ELECTRIC INSTRUMENT TRANSFORMERS; ELECTRIC TRANSFORMER TESTING; INSULATION; MOISTURE; MOISTURE DETERMINATION; OIL FILLED TRANSFORMERS;

TRANSFORMER PROTECTION;

EID: 80052710291     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1109/EIC.2011.5996118     Document Type: Conference Paper

References (8)

1. A. Kumar and S. M. Mahajan, "Correlation between time and frequency domain measurements for the insulation diagnosis of current transformers," NAPS, Arlington, TX, Sept. 2010.
2. Dag Linhjell, Lars Lundgaard, and Uno Gafvert, "Dielectric response of mineral oil impregnated cellulose and the impact of aging," IEEE Trans. Dielectrics and Electrical Insulation, Vol. 14, No.1, pp. 156-169, 2006.
3. C. Ekanayake, S. M. Gubanski, A. Graczkowski, and K. Walczak. "Frequency response of oil impregnated pressboard and paper samples for estimating moisture in transformer insulation," IEEE Trans. Power Delivery, Vol. 21, No.3, pp. 1309-1317, 2006.
4. R. Neimanis, R, Eriksson, "Diagnosis of moisture in oil/paper distribution cables-part I: estimation of moisture content using frequency-domain spectroscopy," IEEE Trans. Power Delivery, Vol. 19, No.1, pp. 9-14, 2004.
5. T. K. Saha, "Review of modern diagnostic techniques for assessing insulation condition in aged transformers," IEEE Trans. Power Delivery, Vol. 10, No.5, pp. 903-917, Oct. 2003.
6. S. M. Gubanski, P. Boss, G. Csepes, V. D. Houhanessian, J. Filippini, P. Guuinic, U. Gafvert, V. Karius, J. Lapworth, G. Urbani, P. Werelius, and W. Zaengl, "Dielectric response methods for diagnostics of power transformers", IEEE Electr. Insul. Mag., Vol. 19, No. 3, pp. 12-18, 2003.
7. W. S. Zaengl, "Dielectric spectroscopy in time and frequency domain for HV power equipment, Part I: theoretical considerations", IEEE Electr. Insul. Mag., Vol. 19, No. 5, pp. 9-22, 2003.
8. T. Leibfried, A.J. Kachler, W.S. Zaengl and V. D. Houhansseian, "Ageing and Moisture Analysis for Power Transformer Insulation Systems," CIGRE Session, Paris, 2002.