Copper Processing Facility Substation

PSE provided the engineering and primary protection design for this 10 MVA, 138 kV/13.8 kV substation to provide power to copper mining in Southeast Utah. PSE also designed the 13.8 kV power distribution to the entire SX/EW copper extraction facility. In addition, PSE refined the copper extraction process to meet the client’s operating standards, and upgraded existing, outdated control systems to state-of-the-art Modicon Quantum PLC systems.

Multidiscipline consulting services used:

Process Engineering:

  • Redesign of solvent extraction and electrowinning areas

  • Comprehensive survey of existing plant equipment

  • Design of new crushing areas

Controls Engineering:

  • Control building specifications

  • PLC installation and programming

Electrical Engineering:

  • 138 kV/13.8 kV (10 MVA) substation design

  • Grounding grid design

  • Tap-in to existing 138kV overland transmission lines

  • Metering package interface

  • Primary and secondary overhead distribution protection

  • 13.8 kV power distribution system design

Structural Engineering:

  • Foundations and supports at substation

  • Structural design for wood power distribution poles

  • Foundation for pre-fabricated control building

Construction Phase:

  • Equipment specifications and recommendations

  • Evaluation of equipment cost quotes

  • Startup and commissioning

ServicesBrent MaxwellPower