Title :
Choosing medium-voltage circuit-breakers based on IEC60909 short-circuit calculations
Author :
Cossé, Roy E., Jr. ; Hazel, Terence G. ; Youssef, Rida
Author_Institution :
Kellogg Brown & Root Inc., Houston, TX, USA
Abstract :
This paper discusses the impact of the proposed revision of IEC60056 on the choice of interrupting rating of high-voltage circuit-breakers. The paper first reviews the use of the maximum voltage factor “c” of IEC60909 which may produce conservative short-circuit magnitudes resulting in more costly electrical interrupting equipment. Guidelines are provided, enabling the engineer to correctly define the circuit-breakers and switchgear for industrial applications
Keywords :
IEC standards; circuit breakers; short-circuit currents; IEC60909 short-circuit calculations; circuit-breakers; electrical interrupting equipment; high-voltage circuit-breakers; industrial applications; interrupting rating; maximum voltage factor; medium-voltage circuit-breakers; short-circuit magnitudes; switchgear; Circuit faults; Design engineering; Guidelines; IEC standards; IEEE members; Induction motors; Medium voltage; Safety; Synchronous generators; Synchronous motors;
Conference_Titel :
Industry Applications Conference, 2000. Conference Record of the 2000 IEEE
Conference_Location :
Rome
Print_ISBN :
0-7803-6401-5
DOI :
10.1109/IAS.2000.883218
