Instrumentation for investigation of corona discharges from insulated wiresA coaxial cylinder configuration is used to investigate the effect of corona impulses on the deterioration of electrical insulation. The corona currents flowing through the resistance develop a voltage which is fed to the measuring set-up. The value of this resistance is made equal to the surge impedance of the coaxial cylinder set up to prevent reflections. This instrumentation includes a phase shifter and Schmidt trigger and is designed to sample, measure, and display corona impulses occurring during any predetermined sampling period of a randomly selectable half cycle of the 60 Hz high voltage wave.
Document ID
19760039672
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Doreswamy, C. V. (Tuskegee Institute Tuskegee, Ala., United States)
Crowell, C. S. (NASA Marshall Space Flight Center Huntsville, Ala., United States)