Underground Power & Drive Skids | LV and MV Integration

Underground power and drive skids, tested before they go down the shaft

Madison Industrial Group engineers, builds, factory-tests, and supports skid-mounted MV and LV power and drive systems for underground mines. One accountable team solves the interfaces between drives, distribution, and controls in our shop, not underground.

  • MV and LV distribution, drives, motor control, protection, and controls in one integrated package
  • Factory acceptance tested before it ships
  • Engineered around your shaft, cage, and ramp limits

Tell Us About Your Project

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Backed by Madison Industrial
Group's regional businesses:

Underground electrical problems show up at the interfaces

When drives, switchgear, MCCs, transformers, protection, and controls come from different suppliers, the gaps between them surface during underground commissioning, where they are slowest and most expensive to fix.

Every underground hour costs more.

Wiring, testing, and troubleshooting cost more underground than in a shop

The equipment has to fit.

It must fit cage, shaft, and ramp dimensions; tolerate dust, water, heat, and vibration; and often move as the mine develops.

Critical loads can't go down.

Ventilation and dewatering need protection, redundancy, and serviceability designed in from the start.

Schedules slip on long-lead equipment.

Lead times and late design changes on drives and distribution push out development and expansion.

Talk to an Engineer About Your Project

One tested package. One accountable team.

We engineer distribution, drives, motor control, protection, and controls together, so interface risk sits with us rather than with the mine. Your skid arrives ready to connect.

  • MV drive skids: MV VFDs (4.16 kV) with input protection, transformer or active-front-end options, cooling, and controls for main ventilation fans, large dewatering pumps, and conveyors.
  • LV drive and MCC skids: LV VFDs, MCCs, and motor control for auxiliary fans, pumps, and conveyor drives.
  • Mine-power skids and portable power centres: MV distribution, transformation, switching, and protection packaged for underground power distribution.
  • Controls and integration: PLC, remote I/O, and network integration so skids connect cleanly to your control system.

Built for the Loads that Keep a Mine Running

  • Main and auxiliary ventilation
  • Dewatering and pumping
  • Underground conveying
  • Underground mine-power distribution
  • Mine expansions and new levels
  • Replacement and modernization of aging underground electrical equipment

From First Drawing to Ongoing Service

  • Design: Electrical and mechanical design around your application, loads, and site constraints.
  • Build: Fabrication and integration in our shop, with full documentation.
  • Test: Factory acceptance testing before anything ships, so less work happens underground.
  • Commission: Site commissioning and start-up support from people who built the skid.
  • Support: Troubleshooting, spares, repair, and motor and drive service across Canada.

See What Goes On An Underground Skid

The one-page skid overview covers configurations, applications, and our delivery process. Easy to share with your project team or EPCM.

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Why Mines and EPCMs Work with Madison

  • Technology-flexible: We select and integrate the right drive and distribution technology for the application, working with leading manufacturers, instead of forcing a single product line.
  • Proven underground: Stockdales brings decades of underground mining electrical experience, with Arrow Speed Controls' drive and enclosure capability and Western Integrated's systems and electrical execution.
  • Works within your project: Experience in EPCM and owner-led project environments.
  • Here after start-up: Commissioning, troubleshooting, repair, spares, and service from Madison's regional businesses across Canada.

FAQ

Do you only work with one drive brand?
Can you work to our EPCM's specifications?
What voltages do you cover?
What should I send for a concept review?
Do you support equipment after start-up?

Have an underground project coming up?

Send us your application and site constraints. We'll review them with you and show what an integrated, factory-tested skid could look like for your mine.

Request a Concept Review