Key Technologies For Ultra-Wideband Pds Detection In Transformer Under Ac/Dc Withstand Voltage Tests, Part 3: Comments On The Anti-Interference Technology

In this paper, the author introduces the interference sources in the field PD test of transformer pulse current method in detail, and comments on the principle, advantages and disadvantages of the existing anti-interference technology of each interference source. Finally, the author puts forward the ultra wide band PD intelligent detection technology of transformer, which provides a more advanced means for the detection and evaluation of the insulation state of the electric transformer and the rheological oil paper.