Mining Transformer, Automation Grade : Automatic

Powering underground drills, conveyors, crushers, and lighting systems Supplying voltage to mobile mining equipment Step-down transformation from medium voltage (MV) to low voltage (LV) for equipment use Portable substation applications in open-pit and underground mines 3. Design Considerations a. Electrical Parameters Primary Voltage: Typically 3.3 kV, 6.6 kV, 11 kV, 22 kV (MV range) Secondary Voltage: 415 V, 690 V, or other LV values depending on mining equipment Frequency: 50 Hz or 60 Hz Power Ratings: Typically ranges from 500 kVA to 5 MVA Impedance: Customized to suit system protection coordination b. Duty Type Designed for continuous or cyclic duty under load Must accommodate frequent starts and stops of mining equipment