Abstract
The analytical expressions presented in this chapter enable the determination of the ground-fault current distribution for a fault anywhere along a power line performed by one three-core cable or three single-core cables and at the end of the cable line with applied cross-bonding. Primarily, the correct estimation of ground-fault distribution is necessary in contemporary electric-power engineering practice for obtaining a correct evaluation of critical potential differences (step and touch voltages) appearing during a ground fault on the grounding system of a supplied substation. The second reason is the possibility to select cable(s) metal sheath that is in accordance with the real needs. This means that a selected cable sheath must be capable of withstanding thermal stresses caused by the ground-fault current fraction passing through it, but not to such extent to cause too high expenditure in cable production and too high values of harmful circulating currents appearing during normal operating conditions.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Relevant Characteristics of Power Lines Passing Through Urban Areas
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
