Study on the Dynamic Modeling of a MCCB Mechanism Including Electro-Magnetic Force Effect

전자기력의 영향을 포함한 MCCB 기구부의 동역학적 모델링 방법 연구

  • Published : 2001.03.01


To design a limiting MCCB (Molded Case Circuit Breaker) mechanism, a dynamic modeling of the mechanism in which the electro-magnetic force effects are incorporated needs to be developed. Conventionally, electro-magnetic effects were considered separately for the design of the mechanism. In this paper, an electro-magnetic force that is induced by limited current is identified and included in the dynamic modeling of the mechanism. Thus, the electro-magnetic which is defined as a external force and the mechanical effects are simultaneously considered for the design of the mechanism which is composed of contactor, spring , link, latch and so on.


MCCB;Limiting MCCB;Limiting Characteristics;Limited Current;Electro-Magnetic Force;Dynamic Modeling;Dynamic Analysis


  1. J.L Cloulomb,1984, 'Finite Element Implementation of Virtual Work Principle for Magnetic or Electric Force and Torque Computation,' IEEE Trans. On Magnetics, Vol. 20, No. 5, pp. 1894-1896
  2. J.L Cloulomb,1983, 'A Methodology for the Determination of Global Electro mechanical Quantities from a Finite Element Analysis and Its Application to the Evaluation of Magnetic Force, Torque and Stiffness,' IEEE Trans. On Magnetics, Vol. 19, No. 6, pp. 2514-2519
  3. Y. Kawasw, H. Mori, and S. Ito, 1997, '3-D Finite Element Analysis of Electrodynamic Repulsion Forces in Stationary Contacts Tasking into Account Asymmetric Shape(Invited),' IEEE Trans. On Magnetics, Vol.33, No. 2, pp. 1944-1999
  4. S. Ito, Y. Kawase and H. Mori , 1996 , '3-D Finite Element Analysis of Repulsion Forces on Contact Systems in Low Voltage Circuit Breaker,' IEEE Trans. On Magnetics, Vol.32, No. 3, pp. 1677-1680
  5. S. Ito, Y. Takato, Y. Kawase and T. Ota , 1998, 'Numerical Analysis of Electromagnetic Forces in Low Voltage AC Circuit Breakers Using 3-D Finite Element Method Taking into Account Eddy Currents,' IEEE Trans. On Magnetics, Vol.34, No. 5, pp. 2597-2600
  6. LG 산전, 1994, 배선용 차단기 기술자료집, pp. 2-35
  7. R.Holm , 1967, Electric Contacts, 4th ED.,Springer-Verlag
  8. K.Krause and J.Mental, 1975, 'Magnetic Force Acting on Current-Carrying Contact Before and After Contact Separation, ' Siemens Forsch. U. Entwickl. Ber. Bd.4, pp. 33-38
  9. 송희찬, 1996, 배선용 차단기의 소호실 설계를 위한 아크의 자기 구동력의 3 차원 해석, 충북대 석사논문
  10. 한양대학교, 1999, MCCB Mechanism의 기구 동역학적 설계체계확립을 위한 모델링 및 해석, 연구보고서
  11. PTC, 1997, Pro Engineer Reference Manual
  12. MDI, 1998, ADAMS/Solver Reference Manual
  13. ANSOFT, 1993, Maxwell 3D Field Simulator - 3D Magnetostatic Problem
  14. 한국표준협회, 1993, 공업진흥청 KSC8321