Title :
Overvoltage protection study on vacuum breaker switched MV motors
Author :
Penkov, D. ; Vollet, C. ; Metz-Noblat, B. De ; Nikodem, R.
Author_Institution :
Scheider Electr., Grenoble
Abstract :
This article presents the main results of a large overvoltage protection simulation study, carried out on vacuum breaker switched motors. Different protection solutions, as well as a great number of electrical network parameters, motor starting current and connecting cable characteristics were varied. The study showed that overvoltage protection installation is highly recommended for frequently started MV motors, switched by vacuum breakers regardless of the cable length, or even motor starting current. The main conclusions and results of this study are presented and commented on. The well known ATP-EMTP and MATLAB software were used for these analyses.
Keywords :
electric motors; overvoltage protection; switching; vacuum circuit breakers; ATP-EMTP software; MATLAB software; connecting cable characteristics; electrical network parameters; overvoltage protection installation; vacuum breaker switched MV motors; Application software; Circuit breakers; Dielectric breakdown; EMTP; Joining processes; MATLAB; Power cables; Surge protection; Switching circuits; Voltage control; ATP; Alternative Transients Program; EMTP; Electromagnetic Transients Program; Line and Cable Constants; MATLAB; R-C filter; Vacuum circuit breaker; motor switching; overvoltage protection; surge-arrester;
Conference_Titel :
Petroleum and Chemical Industry Conference Europe - Electrical and Instrumentation Applications, 2008. PCIC Europe 2008. 5th
Conference_Location :
Weimar
Print_ISBN :
978-3-9523333-1-0
Electronic_ISBN :
978-3-9523333-2-7
DOI :
10.1109/PCICEUROPE.2008.4563537
