기중 차단기용 전자석 조작기 및 3절 링크 설계

다국어 초록 (Multilingual Abstract)

In this paper, an electromagnetic force driving actuator (EMFA) and three-link mechanism are proposed as a driving mechanism and connection device for low voltage air circuit breaker (ACB). As the result of dynamic characteristic analysis, the actuator and link mechanism are designed from the simulation and manufactured. The magneitc field of the EMFA is analyzed using the finite element method (FEM). The dynamic characteristic analysis with calculation of the circuit equation and kinetical equation is performed by the time difference method (TDM). Also, the result of the analysis is verified through the experiment of the fabrication model. In this paper, the EMFA size is smaller than the actuator for high voltage circuit breaker. Thus, the dynamic characteristic is analyzed with end-winding inductance that is calculated by the same method which is applied on the circle type end-winding of motors. The designed model for 1600 ampere-frame ACB and the three-link mechanism for connecting contact part with actuating part are manufactured. It is confirmed that the three-link mechanism is possible for improving the circuit breaker efficiency and reducing the size of the EMFA. It is proved that the improved 2-D analysis is more accurate than established method.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 전자석 조작기 설계 및 특성 해석
• 3. 3절 링크 고안 및 운동 계산
• 4. 전자석 조작기와 3절 링크 제작 및 실험
• 5. 결론
• 참고문헌
• 저자소개

참고문헌 (Reference)

1 A.R. Bergen, "Power Systems Analysis" Prentice-Hall 2000

2 Jörgen Engström, "Inductance of Slotless Machines" 266-270, 2000

3 A. Bedford, "Engineering Mechanics : Statics, Upper Saddle River" Pearson/Prentice Hall 2005

4 S.M. Choi, "Dynamic Characteristic Analysis and Design of Electromagnetic Force Driving Actuator" Seoul National University 2008

5 J.H. Kang, "Development and Characteristic Analysis of New type Actuator, Electro Magnetic driven Force Actuator applicable to High Voltage Circuit Breaker" 359-362, 2005

6 J.H. Kang, "Development and Analysis of New Type of Switchgear for High Voltage Gas Circuit Breaker : Electromagnetic Force driving Actuator" 2006

7 J.R. Hendershot Jr., "Design of Brushless Pemanent-Magnet Motors" Magna Physics Publishing and Clarendo Press 5-59-5-61, 1994

8 E. Dullni, "A Vacuum Circuit-Breaker with Permanent Magnetic Actuator and Electronic Control" 1999

9 E.Dullni, "A Vacuum Circuit Breaker with Permanent Magnetic Actuator for Frequent Operations" 688-691, 1998