Posts Tagged ‘industrial controls’

The End of an Era

Tuesday, November 14th, 2017

Since 1946, a Minnesota manufacturing facility has relied on the same two synchronous motors to power its plant. But now, after 70 years, the time has come to get an upgrade. Egan provided its expertise in constructing the electrical installation of two, newer, more modern squirrel cage motors at the manufacturing plant.

“Given the age of the motors, the price to replace instead of repair them was actually more cost effective,” said Paul Meier, Egan Company Project Manager.

Facts about the motors:

  • The synchronous motors had a voltage rating of 2300 volts and ran at a constant rate of 200rpm. These have now been replaced with modernized conventional motors that can function up to a rate of 1800rpm.
  • In addition, the new motors have a voltage rating of 480 volts. With the help of gear reduction, they can still maintain the desired rate of 200rpm while providing much less stress on the machine.
  • The horsepower of the synchronous motors was 350hp and 500hp while the new motors are each 400hp.
  • Lastly, the new motors are half the size! The synchronous motors towered at seven feet high while the squirrel cage motors stand around three feet.

 

 

 

 

Pictured above: old synchronous motors (left) and new squirrel cage motors (right)

Egan’s team provided all pre-installation wiring of distribution gear and soft starters for the project. The soft starters temporarily reduce the load and torque of the power and electrical surge of a motor during start-up. In turn, this reduces the mechanical stress on the motor and shaft, which extends the lifespan of the system.

“The soft starters for these motors are an important piece to this project,” said Meier. “These will be a big factor in the longevity of the new systems.”

In addition, Egan helped coordinate the facility shut downs to install each of the motors. This included the logistics and functionality of allowing the facility to run off of one old motor and one new motor congruently in-between the two shutdown periods.

Discover Egan: Onsite Engineering Support

Wednesday, August 23rd, 2017

When workloads get heavy and staff is overwhelmed, sometimes reinforcements are necessary. To alleviate this pressure, food processing and manufacturing customers utilize the support of Egan Company’s full-time, on-site, trained controls engineers. With schedule flexibility, our team of controls engineers and CAD technicians are available to assist as needed.

The focus areas of an onsite engineer differ depending on the site, but may include:

  • Providing machine upgrades as requested for existing and new projects
  • Designing/implementing new process components and control processes
  • Supplementing the customers’ full-time engineering staff
  • Providing maintenance and troubleshooting of systems
  • Creating CAD symbols and standards
  • Developing new control processes

Throughout the Upper Midwest, industrial and manufacturing customers are utilizing Egan’s industry veterans onsite to deliver engineering skills and industry expertise at their sites.

Most recently, a large manufacturing customer requested the help of three Egan engineers to provide full-time support for the customer’s full-time engineers on backlogged projects.

“These partnerships are great for us and the customer,” said Brian Harren, Engineering Manager. “We know the customer and the facility, which allows us to provide a vetted employee that can work quickly and effectively.”

Learn more about our process controls engineering.

Local Expansion Helps CHS Grow

Thursday, December 17th, 2015

150721_Egan_L_191Minnesota is the fourth-largest agricultural exporting state in the country. About 54 percent (or 27.6M acres) of the state consists of farmland. That’s close to the total acreage of Tennessee (26.9M acres). For home-grown grain products, Cenex Harvest States (CHS), a Minnesota-based multinational agricultural cooperative, relies on a vast network of roads, railways, and river transit to export around the world.

An important step in the distribution process is the system of grain-handling terminals, or “grain elevators,” where corn, soybean, and wheat can be stored and later moved onto river barges by conveyors. In 1982, CHS opened a multiple commodity grain-handling terminal in Savage, Minn., with a storage capacity of 560,000 bushels (or roughly 31.4 million lbs. if using only corn). That capacity more than doubled this past year with the construction of a new 801,000-bushel bin.

CHS moves more than two billion bushels of grain annually, so efficiency is key. Without an efficient transportation network, farmers could not compete on an international scale. That’s why expansions must be strategic and well executed.

When it came time to choose who would provide automation for the new bin, CHS Savage Terminal Manager Greg Oberle knew Egan held a distinct advantage.

“The work that Paul Meier [Project Manager], Todd Voth [Electrical Foreman], Darin Shaw [Electrical Foremen], Joe Trosen [Controls Engineer], and Mark Thomas [Electrical Foreman] have performed for us is outstanding,” said Oberle. “We already knew they were a good fit for the expansion, based on past experience.”

The experience Oberle mentions is in reference to a full-scale software update that occurred in 1999. The then-current PLC/3 control system had become out-of-date. CHS hired technicians from Industrial Electric (since acquired by Egan) to upgrade the system with new ControlLogix and RSView software. After a successful installation, the business relationship continued to stay strong through the years.

“The whole operation has been Egan’s baby since the update,” said Oberle. “The Egan crew works hard to make sure they come to me with solutions, not just issues. That kind of relationship is what wins you the first major expansion to this facility since it opened in 1982.”

The new bin is a 105150721_Egan_L_202-foot wide cylinder that stands 99-feet tall at the eve and 128 feet at its peak. Egan installed two new motor control centers for product supply and control motors for conveyance to-and-from the new bin. Todd Voth, who lives in the area and is frequently called on by CHS to tend to the facility’s many-faceted needs, played a key role in the technology integration effort.

“Automation-wise, grain elevators are definitely more complex than most people might think,” Voth said. “It’s a process with many coordinated steps to move grain that efficiently, and any missteps can lead to angry grain haulers and lost business.”

The substantial increase in storage frees up business options for CHS. Deliveries that used to have to wait until a barge arrived can now freely move product to the facility without delay. The new bin is also designed to help railroad cars load more efficiently.

The bin officially opened in May 2015, after five months of construction. The facility can now efficiently store and manage about 1.36 million bushels of grain product, and continues to receive dedicated service from Egan personnel.

Egan Services Provided: Installation of two new motor control centers for product supply and control motors for conveyance to-and-from the new bin.

Summit Brews in Newest Expansion

Tuesday, June 9th, 2015

2015_SummitBrewingExpansion (9)The Summit Brewing Company has seen popularity and demand skyrocket in recent years. Though they’re well-known for producing craft beer, they are by no means a small operation. The Summit headquarters in St. Paul, Minn., is the 28th largest brewery in the U.S., and it’s where Egan recently completed a revamp of electrical infrastructure for their newest expansion.

Summit began their ambitious development initiative in 2012, which included construction of a brand-new cellar (prior to Egan involvement) and then the purchasing and repurposing of an adjacent facility. The refurbished facility contains several new additions, and the entire electrical layout needed to be rearranged to accommodate the new equipment.

“Summit leaned on us to make the facility mesh together well,” said Mitch Schanus, Egan Company Foreman, “which is crucial when you’re looking to house an office, bar, and brewery environment in one building.”

When Summit’s primary electrical person retired several years ago, Egan was brought on thanks, in part, to an old connection. Egan Project Manager Randy Kalthoff and Summit COO Tom Thomasser had worked on a construction project together twenty years earlier in La Cross, Wisc. Kalthoff recognized the name on a project bid and reached out soon after.

“Tom and the Summit team started with a pretty general layout in mind for the building,” said Kalthoff. “Our expertise helped fill in the gaps to get them the most out of the space available.”

Egan worked with Summit’s broad specifications to essentially design and build the entire facility’s refurbishments.
The grand opening for the revamped facility took place in April, with Egan and Summit employees, beer enthusiasts, and St. Paul Mayor Chris Coleman in attendance. All of Summit’s facilities now receive regular maintenance from Egan electricians, a pleasant task when paired with a quick trip to the beer hall after a hard day’s work.

The Summit Brewing Project is a refurbished, 40,000 square foot, industrial/office facility with 3.5 acres of land. The work entailed complete rewiring, upgraded main service, new LED lighting, and a remodel of infrastructure for the office, training room, kitchen, and bar areas.

Egan Services Performed: Design-build of electrical infrastructure.