Title :
Breakdown strength of short airgaps under oscillatory impulse voltages
Author :
Venkataseshaiah, C. ; Sarathi, R. ; Roy, Himanshu
Author_Institution :
Indian Inst. of Technol., Madras, India
Abstract :
This paper presents the results of studies made on the breakdown strength of short airgaps under unidirectional, cos-bidirectional and sin-bidirectional oscillatory impulse voltages. Needle-needle and needle-plane electrode configurations have been used. The effect of variation of frequency and decay rate of the oscillatory impulse voltages on the breakdown strength have been studied. The results are compared with those obtained under AC, lightning impulse and switching impulse voltages
Keywords :
air gaps; electric breakdown; electric strength; transients; airgap; breakdown strength; needle-needle electrode; needle-plane electrode; oscillatory impulse voltage; Breakdown voltage; Circuits; Electric breakdown; Electrodes; Frequency; Humidity; Insulation; Lightning; Surges; Voltage-controlled oscillators;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1997., Proceedings of the 5th International Conference on
Conference_Location :
Seoul
Print_ISBN :
0-7803-2651-2
DOI :
10.1109/ICPADM.1997.617559
