Show simple item record Litchev, A.I. Yanev, K.M. 2011-02-10T09:48:34Z 2011-02-10T09:48:34Z 1999
dc.identifier.citation Litchev, A.I. & Yanev, K.M. (1999) Improvement of AC electromagnet performance, Botswana Journal of Technology, Vol. 8, No.1, pp.10-16 en_US
dc.identifier.issn 1019 1593
dc.description.abstract Electromagnets are essentials for the operation of relays, contactors and other electromagnetic apparatus and take part in driving control and protective circuits of industrial processes and power systems. Performance of each electromagnet affects the driving time and the stability of operation of such circuits. This paper examines the improvement of the performance of AC electromagnets by using two diodes. The theoritical analysis lead to expressions for calculating the maximum, average and minimum values of coil-currents. Due to the electromagnetic processes in the coil, the current becomes pulsating but unidirectional and better force-gap characteristics are achieved. Consideration are made for reduction of the mass ferromagnetic and copper materials in the electromagnets and for decreasing teh responding time. en_US
dc.language.iso en en_US
dc.publisher University of Botswana en_US
dc.subject Electromagnets en_US
dc.subject AC electromagnets en_US
dc.title Improvement of AC electronmagnet performance en_US
dc.type Published Article en_US

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