COMPARISON OF ANSI AND IEC 909 SHORT-CIRCUIT CURRENT CALCULATION PROCEDURES

Citation
G. Knight et H. Sieling, COMPARISON OF ANSI AND IEC 909 SHORT-CIRCUIT CURRENT CALCULATION PROCEDURES, IEEE transactions on industry applications, 29(3), 1993, pp. 625-630
Citations number
9
Categorie Soggetti
Engineering,"Engineering, Eletrical & Electronic
ISSN journal
00939994
Volume
29
Issue
3
Year of publication
1993
Pages
625 - 630
Database
ISI
SICI code
0093-9994(1993)29:3<625:COAAI9>2.0.ZU;2-Q
Abstract
Although ANSI fault calculation methods are designed to determine a va lue to compare with the equipment ratings, the IEC 909 Standard presen ts a method that inherently more accurately models the fault currents that flow. The IEC method requires significantly more complex modeling of the power system fault contributions than ANSI requires. By unders tanding the calculation differences, the difference in equipment ratin gs becomes more insightful.