An effective method to avoid charge leakage along the surface in voltage response measurement

Area of Science:

• Electrical Engineering
• Materials Science
• Non-destructive Testing

Background:

• Voltage response measurements are crucial for diagnosing insulation aging in dielectrics.
• Analyzing dielectric polarization and resistance provides insights into material degradation.
• Surface charge leakage can interfere with accurate voltage response analysis.

Purpose of the Study:

• To develop an effective method for eliminating surface charge leakage during voltage response measurements.
• To enhance the accuracy of dielectric aging diagnosis using non-destructive techniques.

Main Methods:

• Implementation of a novel three-electrode configuration incorporating a potential guard electrode.
• Measurement and analysis of voltage decay characteristics of charged dielectrics.
• Comparison of results with and without the guard electrode.

Main Results:

• The three-electrode system with a potential guard electrode effectively prevents charge leakage along the sample surface.
• Voltage decay measurements demonstrate improved data quality and reliability.
• The proposed configuration enhances the diagnostic capability for insulation aging.

Conclusions:

• The three-electrode configuration with a potential guard electrode is a highly effective solution for mitigating surface charge leakage.
• This method significantly improves the accuracy and reliability of non-destructive insulation aging diagnosis.
• The findings have practical implications for maintaining the integrity of electrical insulation systems.