We have experience in all aspects of power systems at all areas of mine sites including open pit mines, underground mines, and process plants. Mines in particular can have significant challenges with voltage stability since they tend to be interconnected to long utility transmission lines and the mining equipment can have highly fluctuating loads. They can also have grounding issues due to the strict requirements of the mining codes. Here are some issues we’ve helped to solved in mines:

  • Starting large mill motors at the process plant/concentrator
  • Finding and fixing coordination issues due to improper relay settings
  • Mitigating voltage drop issues when operating shovels or other mining equipment
  • Designing grounding systems to meet MSHA and CSA M421 requirements
  • Utility interconnections for new mines including new substation designs

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