By Topic

Grounding measurements in urban areas - comparison of low and high voltage measurements in common grounding systems

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Lindinger, M. ; Inst. of Electr. Power Syst., Graz Univ. of Technol., Graz, Austria ; Fickert, L. ; Schmautzer, E. ; Raunig, C.

Common grounding systems (global earthing systems) are not very clearly defined in standards. One definition of a common grounding system is that no dangerous touch voltages caused by ground fault currents occur. This means that a common grounding system does not depend only on the grounding system itself but also on the type and operation of the electrical grid and the protection schemes. In a resonant grounded network only low ground fault currents appear because of the compensation, therefore it is difficult to detect and clear single ground faults if desired or necessary. To provide a reliable localization of a ground fault a higher current can be injected intentionally but it must be proved that no dangerous touch and step voltages occur. To prove this in a typical urban grid, different measurements were carried out. Measurements at low and high current levels and an additional simulation are compared and discussed.

Published in:

PowerTech, 2011 IEEE Trondheim

Date of Conference:

19-23 June 2011