Title :
Research on monostable square permanent magnetic mechanism characteristics of HV circuit breaker considering eddy current
Author :
Aimin Liu ; Zhirong Lv ; Jinhua Zhang
Author_Institution :
Sch. of Electr. Eng., Shenyang Univ. of Technol., Shenyang, China
fDate :
Aug. 31 2014-Sept. 3 2014
Abstract :
The Permanent Magnetic Operating Mechanism of high voltage circuit breaker would generate eddy current in the dynamic and static iron core, therefore, the coupling method was used to analyze the transient magnetic field and the mathematical model of the nonlinear transient magnetic field was deduced. The software Ansoft was used to comparative analyze the changes of electromagnetic force, action time and other parameters of monostable Square Permanent Magnetic Operating Mechanism (SPMOM) with different materials and structures. The results show that the action time of SPMOM will increase for the effect of eddy current and the eddy current loss is great.
Keywords :
circuit breakers; eddy current losses; high-voltage engineering; magnetic cores; magnetic fields; Ansoft; HV circuit breaker; action time; coupling method; dynamic iron core; eddy current loss; electromagnetic force; high voltage circuit breaker; monostable square permanent magnetic mechanism characteristics; monostable square permanent magnetic operating mechanism; nonlinear transient magnetic field; static iron core; Contracts; Iron; Load modeling; Magnetic analysis; Transient analysis; circuit breaker; dynamic characteristic; finite element method; monostable square permanent magnetic operating mechanism (SPMOM); transient magnetic field;
Conference_Titel :
Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014 IEEE Conference and Expo
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-4240-4
DOI :
10.1109/ITEC-AP.2014.6940907
