Project

Hydro Dam – Stator Jacking Towers

Customer:   Andritz Hydro / OPG

Share This

About The Project

Andritz Hydro was commissioned by Ontario Power Generation to add a new turbine-generator set at the Little Long, Harmon and Kipling power stations as part of the Lower Mattagami River Project.  Andritz Hydro was also commissioned by Ontario Power Generation to refurbish both turbine-generator sets at the Lower Notch generating station.  Due to crane limitations at these stations, Andritz was required to provide a means to perform maintenance work on the 400,000 lb generator stators with the generator rotors in situ.  Lower Mattagami required supply of a new jacking system; while Lower Notch involved refurbishment of an existing jacking system.  Andritz turned to MEDATECH to design, build and refurbish the stator jacking systems as custom lifting device solutions.

 

MEDATECH built the first of two stator jacking units in 2013 and delivered the second unit in early 2015. These systems are purpose built and designed to lift stator housings weighing in excess of 400,000 lbs. The control system had to provide consistent and level lift at a very low flow rate.

Challenges

  • Design and Build of a custom lifting device for a 400,000 lb stator.
  • Extreme lift requiring precise control of the lift and decent to keep the load level at all times.
  • Towers need to be designed for possible earthquakes and other dynamic loading scenarios.

Solutions

  • A specially designed jacking tower was provided with custom cylinders. Four of these towers were used in conjunction with a specially designed and fit for purpose control system and panel to lift the massive 400,000 lb stators safety.
  • The hydraulic power unit was designed to provide very low flows to the four lift cylinders and has built in controls to monitor level and speed. The control of the lift must be extremely smooth and consistent between the 4 lifting towers.
  • The system was designed for safety with intricate safety interlocks designed specifically for this application.

Highlights

  • Custom towers for massive 400,000 lb lift with extremely precise level control.
  • Controls and Hydraulics designed, built, certified and tested at MEDATECH facility.
  • Designed and Certified by Professional engineers in the province of Ontario.

Facilities Expansion Underway

The building is well underway!  We’re adding 5,000 sq-ft of new shop space and a 10-ton crane to better serve MEDATech’s clients around the globe, and we’re excited about it! {post_name} {team_member} {customer}

MEDATECH to supply innovative drilling system for rehabilitation of aging dam infrastructure

January 14th, 2019: MEDATECH is excited to announce that they have agreed to terms for the supply of an innovative drilling system. The system will be used for rehabilitation of aging dam infrastructure in the southern United States. The customer has been conducting extensive on-site assessment of their existing drilling systems for dam rehabilitation. With recent … Read more

Nouveau Monde Graphite completes feasibility showing an “all-electric open-pit mine can be built that delivers ample shareholder returns”

Oct. 25, 2018  Nouveau Monde Graphite announced the results of their “all-electric open-pit” feasibility study. The results are favorable for the all electric solution and will have a significant impact on the future of mining. “The mine will be using an all-electric, zero-emission mine fleet, consisting of electric battery-driven 36.3-t mining trucks, battery-driven front-end loaders, cable … Read more

MEDATECH invests in Expansion to Office and Shop, including 4,000 sq-ft “electronics lab”

After several successful years and significant growth in our engineering and fabrication services, MEDATECH is re-investing in their facilities at the Collingwood location. “The expansion will increase our technical capabilities and give us more room to take on larger and more challenging projects” Says Robert Rennie, President of MEDATECH Engineering. The expansion includes over 5,000 … Read more

First Ever All-Electric Open-Pit Mine: The Feasibility Study Will Be Completed By 2018

June 12, 2018 Most of us relate electrification to underground mining for many obvious reasons, lower ventilation requirement and cost optimization being the two primary ones. The question is ‘Does electrification hold equally good with respect to open-pit mining?’. With a belief that electrification makes sense irrespective of the nature of mining, NMG CEO Éric … Read more

MEDATECH completes 100% battery electric retrofit of diesel grader for GOLDCORP Borden Lake

April 29. 2018 Chapleau Ont., MEDATECH and its partners are proud to announce the delivery of the first ever 100% battery electric retrofit motor grader to the Goldcorp Borden Lake Mine. The project was a joint effort with MacLean Engineering who will be commissioning the system this week underground at the Chapleau mine. See our project … Read more

NMG poised to have the first ever electric open-pit mine

April 10. 2018 Montreal, Quebec — Nouveau Monde Graphite (NMG) intends on completing by the end of 2018 its feasibility study leading to the implantation of the first ever electric open-pit mine. The results of this study will serve to confirm the project’s economic viability and to determine how best to exploit the graphite deposit of … Read more

Why the mines of the future will be diesel free

Why the mines of the future will be diesel free Goldcorp Inc., a gold producer based in Vancouver, BC, recently announced plans to build the world’s first diesel-free hard rock mine near Chapleau, Ontario. Going diesel-free is an ambitious goal. A typical mine can have dozens of diesel engines across its heavy equipment fleet. Going … Read more

How to choose the best industrial lithium battery

How to choose the best industrial lithium battery By: David Francis Lyon, Business Development Manager I recently returned from a large equipment Expo. My goal there was to understand the state of the heavy equipment industry with respect to adapting EV (electric vehicle) technology. There were several machines on display billed as either “Hybrid” or “Electric” … Read more

Hours: Mon - Fri: 9 Am - 5 PM

Saturday and Sunday - CLOSED

Phone: +1 (705) 443-8440

info@altdrivesystems.com

Collingwood ON., Canada

Ocala FL., USA