Title :
Current limiting simulation for low voltage circuit breaker
Author :
Onchi, Toshiyuki ; Isozaki, M. ; Wada, Masayoshi
Abstract :
This paper presents a simulator for analyzing current limiting behaviors in low voltage circuit breakers. Magnetic field analysis, motion analysis and circuit analysis are combined. In the magnetic field analysis, the 3-dimensional finite element method (FEM) is used by which magnetic driving force acting on a movable contact is calculated precisely. The characteristics of electric arc, such as electric field of arc is used experimental result of model equipment. It is considered that current dependence and pressure dependence of arc voltage. In the following sections, measurement of arc voltage characteristics, modeling and simulation algorithm are described. Furthermore, simulation results and comparison with the experimental result of model equipment are also described.
Keywords :
arcs (electric); circuit analysis computing; circuit breakers; circuit simulation; finite element analysis; network analysis; power electronics; short-circuit currents; 3 dimensional finite element method; FEM; arc voltage characteristics; current limiting simulation; electric arc; low voltage circuit breaker; magnetic driving force; magnetic field analysis; motion analysis; simulator; Analytical models; Circuit analysis; Circuit breakers; Circuit simulation; Current limiters; Finite element methods; Low voltage; Magnetic analysis; Magnetic fields; Motion analysis;
Conference_Titel :
Industrial Electronics Society, 2003. IECON '03. The 29th Annual Conference of the IEEE
Print_ISBN :
0-7803-7906-3
DOI :
10.1109/IECON.2003.1280054
