Threshold values determination in high-voltage equipment diagnosis insulation by registration methods of partial discharges

Abstract

The paper presents theoretical information diagnosing insulation parameters of high-voltage transformers. The results of experimental studies on high-voltage transformers in the normal, pre-emergency and emergency states are shown. The comparison was made with the data of chromatographic analysis to determine the threshold values according to the results of acoustic control.

Keywords

• high-voltage transformers
• traction power supply
• gas chromatography
• insulation parameters diagnostics of high voltage transformers
• acoustic method
• partial discharges