Response Test of Power Transformer Windings Excited by Nanosecond Pulse
DOI:
https://doi.org/10.13052/dgaej2156-3306.3715Keywords:
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, real-
ize 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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