Open AccessResponse Test of Power Transformer Windings Excited by Nanosecond Pulse
Author(s) -
Xinhe Liu,
Wenwu Hang,
Han Wu
Publication year - 2021
Publication title -
distributed generation and alternative energy journal
Language(s) - English
Resource type - Journals
eISSN - 2156-3306
pISSN - 2156-6550
DOI - 10.13052/dgaej2156-3306.3715
Subject(s) - linear variable differential transformer , repeatability , transformer , electromagnetic coil , nanosecond , rotary variable differential transformer , materials science , electrical engineering , isolation transformer , acoustics , distribution transformer , engineering , physics , voltage , optics , mathematics , laser , statistics
At present, the detection of transformer winding deformation in the offlinephase, in order to discover the small transformer winding deformation, real-ize the online monitoring, in this paper, using nanosecond pulse frequencyresponse analysis method, the detection of transformer winding deformationis studied, the results show that the nanosecond pulse frequency responseanalysis method in the detection of transformer winding deformation withhigh reliability and sensitivity.In order to verify the repeatability of themethod, the method was used again at a 30-day interval under the conditionthat the detection environment was basically unchanged. The ρ value was0.9719 in the range of 1 kHz∼1 MHz.