Browsing by Author "Yanev, K.M."

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  • Yanev, K.M. (University of Botswana, www.ub.bw, 2007)
    By the turn of the century, Botswana will be 34 years old as an independent nation. Reflecting on the past, is a background of tremendous achievements from a socio-economic development perspective. The achievements could ...
  • Yanev, K.M.; Obok Opok, A.; Litchev, A. (University of Botswana, www.ub.bw, 2004)
    Maintenance of the proper power factor is a very important matter for the industry and for the economy of any country. A study of the power factor value for a number of industrial plants in Botswana shows that they operate ...
  • Litchev, A.I.; Yanev, K.M. (University of Botswana, 2006)
    Analysis of the induction motor failures show, that a significant number of motors are damaged due to single phasing.At such conditions the current increases rapidly and the motor is subjected to burnouts and consequently ...
  • Litchev, A.I.; Yanev, K.M. (University of Botswana, 1999)
    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 ...