Table of Contents
Advances in Electrical Engineering
Volume 2014, Article ID 980913, 5 pages
Research Article

Peak Voltage Measurements Using Standard Sphere Gap Method

1Department of Electrotechnics, Faculty of Electrical Engineering and Computer Science, 13 University Street, 720229 Suceava, Romania
2Department of Telematics and Electronics in Transports, Faculty of Transports, Politehnica University, 313 Splaiul Independentei, Sector 6, 060042 Bucharest, Romania

Received 21 July 2014; Accepted 29 September 2014; Published 8 October 2014

Academic Editor: José R. C. Piqueira

Copyright © 2014 Constantin Ungureanu and Lăcrămioara Mihaela Nemțoi. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The paper presents a measurement system of peak value of high voltage (H.V.) using 150 mm diameter sphere gap, disposed in vertical position. Experimental breakdown results have been compared with standard values at atmospheric reference conditions STC (20°C, 101.3 kPa, or 760 mmHg). The main experimental and theoretical characteristics are presented.