Перегляд Mining of Mineral Deposits по темі "voltage"
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Analysis of current and voltage harmonics introduced by the drive systems of a bucket wheel excavator
(National Mining University, 2020-12-30)Purpose. The quality of electricity is a problem of major interest, making it necessary to analyze the factors and causes that result in the worsening of the electric energy quality. An important aspect of electricity ... -
Identifying the efficiency decrease factor of motors working under power harmornic in 660V electric mining grids
(Dnipro University of Technology, 2021-12-30)Purpose. Identify the motors efficiency decrease factor corresponding to various values of load-carrying ratio. Methods. Basing on the onsite measurements of power harmonic in 660V low voltage (LV) grids in Vietnam ...