IAMGOLD – Cote Mine Power System Study

Location: Gogama, Ontario

Customer: IAMGOLD Corporation

Project Summary

Our Team conducted a comprehensive power system study for the mine site's electrical distribution system, spanning from the 115 kV level down to the 600/347 V distribution. The scope of work included:

  1. A detailed on-site data collection to gather the required information to model the Cote Gold mine electrical system from the 115kV level down to the 600/347V level.
  2. Short circuit study 
    • Analyzed the capabilities of the electrical distribution to withstand and interrupt the worst-case system fault currents.
  3. Protective device coordination study
    • Analyzed existing overcurrent protection settings and compared against industry best practices and applicable standards for protection systems. 
    • Provided recommended overcurrent settings for the protective devices based on the applicable industry standards and best practices (e.g., OESC, IEEE/CSA, etc.).
    • Provided existing and recommended time current curves (TCCs). 
    • Provide existing and recommended overcurrent protection settings in a tabular format. 
  4. Arc flash incident energy analysis 
    • Performed an arc flash incident energy analysis as per CSA Z462-24 and IEEE 1584-2018 for Cote Gold Mine electrical distribution down to the 600/347V level.   
    • Provided a list of recommended settings to reduce incident energy levels below 12 cal/cm2.
    • Installed arc flash adhesive warning labels.