Читать книгу Practical Power Plant Engineering - Zark Bedalov - Страница 56

This facility may be close to the grinding plant, but at a certain distance, to limit the dust spreading to the rest of the plant. Also a large (seven‐day) ore stockpile will be placed between the crushing station and the grinding plant. Crushing usually operates a single 12‐hour shift, while the rest of the plant marches on two shifts. A load center will be required to feed the 4 kV and 460 V motors. We will use 1.5 MVA transformers (13.2 kV/480 V or 4.16 kV/480 V) with MV controllers for motors >200 kW and 480 V MCC starters for motors rated ≤200 kW.