Response Test of Power Transformer Windings Excited by Nanosecond Pulse

  • Xinhe Liu Shenzhen Power Supply Bureau Co. Ltd, Shenzhen 518000, China
  • Wenwu Hang Shenzhen Power Supply Bureau Co. Ltd, Shenzhen 518000, China
  • Haitao Wu Shenzhen Power Supply Bureau Co. Ltd, Shenzhen 518000, China
Keywords: Power transformer, winding deformation, nanosecond pulse, frequency response analysis

Abstract

At present, the detection of transformer winding deformation in the offline phase, in order to discover the small transformer winding deformation, realize the online monitoring, in this paper, using nanosecond pulse frequency response analysis method, the detection of transformer winding deformation is studied, the results show that the nanosecond pulse frequency response analysis method in the detection of transformer winding deformation with high reliability and sensitivity.In order to verify the repeatability of the method, the method was used again at a 30-day interval under the condition that the detection environment was basically unchanged. The ρ value was 0.9719 in the range of 1 kHz∼1 MHz.

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Author Biographies

Xinhe Liu, Shenzhen Power Supply Bureau Co. Ltd, Shenzhen 518000, China

Xinhe Liu, College of electronic systems. Engineer. Graduated from the Northeast Electric Power University in 2010. Worked in Shenzhen Power Supply Bureau Co. Ltd. Her research interests include electrical equipment test, insulation evaluation and fault diagnosis.

Wenwu Hang, Shenzhen Power Supply Bureau Co. Ltd, Shenzhen 518000, China

Wenwu Hang, Master of high voltage, Senior Engineer. Graduated from the Wuhan University in 2005. Worked in Shenzhen Power Supply Bureau Co. Ltd. Her research interests include test management of electrical equipment.

Haitao Wu, Shenzhen Power Supply Bureau Co. Ltd, Shenzhen 518000, China

Haitao Wu, College of electronic systems, Senior Engineer. Graduated from University of Science and Technology of Chengdu in 1993.Worked in Shenzhen Power Supply Bureau Co. Ltd. Her research interests include power production management and research work.

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Published
2021-08-30
Section
Renewable Power and Energy Systems