Title :
Field stress control for spacer in vacuum using varied geometry of triple junction
Author :
Nadolny, Z. ; Ziomek, W.
Author_Institution :
Inst. of Electr. Power Eng., Poznan Univ. of Technol., Poland
Abstract :
The paper presents field stress control for a cylindrical spacer placed between plane electrodes appropriately profiled. The method analyzed utilizes varied angle between the electrode and the surface of the insulator. Computer simulation of the electrical field distribution was preformed. Mechanisms of flashover and voltage holdoff capability for an investigated vacuum insulating system are discussed. The method of estimating the critical electric strength of a system is proposed. The calculated results are compared to the experimental results obtained for real vacuum insulating systems. Varying the electrode angle was found as an efficient technique for field stress control
Keywords :
electric fields; electric strength; electrodes; flashover; insulators; vacuum breakdown; vacuum insulation; computer simulation; critical electric strength; cylindrical spacer; electrical field distribution; electrode angle variation; field stress control; flashover; insulator surface; plane electrodes; triple junction; vacuum insulating system; voltage holdoff capability; Computer simulation; Dielectrics and electrical insulation; Electrodes; Flashover; Geometry; Rough surfaces; Stress control; Vacuum breakdown; Vacuum systems; Voltage;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 1996. Proceedings. ISDEIV., XVIIth International Symposium on
Conference_Location :
Berkeley, CA
Print_ISBN :
0-7803-2906-6
DOI :
10.1109/DEIV.1996.545416
