• Business Hours: Monday - Friday 8:00 am - 5:00 pm

(800) 345-3017
info@nationalconductor.com
18119 State Highway 371
Brainerd, Minnesota

Isolated Phase Bus Duct Maintenance and Inspections

Our Isophase Maintenance and Inspection Division provides you with your isophase or bar bus maintenance & inspections from generator to transformer.

They can handle all of the following tasks in your power plant.

  • Borescope Inspection with complete report
  • Electro-Silver Plating of all connections and ends
  • Cryogenic Cleaning of inside & outside of bus
  • Flexible Braid & Link replacement
  • Hardware & Gasket replacement
  • Welding
  • Troubleshooting

Our Capabilities

Borescope Inspection

With our state-of-the-art Borescope cameras (with 120° articulating head) we are able to capture both still photographs & video from inside your entire Isophase Bus Duct System.

With this technology we are able to detect cracks in insulators, fractures in welds, missing hardware, FME, debris, moisture buildups, etc.

Our cameras are also fitted with 30 feet of inspection cable which allows us to inspect 60’ from one cover opening.

Cryogenic Cleaning

National Conductor provides dry ice blasting/ cryogenic cleaning (Co2) for dust, debris, fire, soot and smoke damage.

We clean Isophase bus, non-seg bus, insulators, transformers, switchgear and other power generation related equipment that has most any residue.

Dust, debris, soot, and smoke damage that is left behind can cause issues with the electrical currents that run through the equipment.

In the past, the only option was to scrub the whole unit down with isopropyl alcohol, which is very time consuming. Rather than scrub down the entire unit, cryogenic cleaning/dry ice blasting can be used in its place, which in turn can significantly reduce downtime.

This process is non-conductive, which means that electronics & electrical components will not be affected by this type of cleaning.

Electro-Silver Plating

National Conductor chooses to use the “Electro-plating” method for our plating projects versus the “Cool Amp” method.

The benefits of our application are that ours is applied using “current” which fuses the metals together to form a bond and lasts much longer versus “Cool Amp”, which is applied to the surface only.

We can apply product to original manufacturer specifications or beyond, or to any desired thickness. We can do copper, nickel, and silver plating and we can also apply over aluminum & copper.

We can plate flex links, braids, LV bushings, spade ends, and all terminal connections.

We are DOT & EPA compliant and our certified technicians are trained in plating & in hazardous material handling.

We have mobile labs that we can bring to your site and perform the plating or if it is more convenient, you can also ship your products to us and we can have them plated at one of our facilities.

Featured M&I Projects

Nebraska City

Location: Nebraska City, NE
Completion Date:  2017

Scope of Work:

  • NCC performed a Borescope Inspection of all IPB & Non-Seg bus systems.
  • Cryogenic cleaned the IPB system to remove dust, contaminates, & wipe down all support insulators.
  • Replaced Neoprene rubber boots.
  • Performed pressure testing & trouble shooting of plants pressure system.

Faribault Energy Center

Location: Faribault & Chaska, MN
Completion Date:  2019

Scope of Work:

  • National Conductor Maintenance & Inspection Division performs Borescope inspections each year at both the Faribault Energy Center & the Minnesota River Station.
  • Every other year we normally also perform Cryogenic cleaning on their IPB at both sites as well.

Lakefield Junction

Location: Trimont, MN
Completion Date:  2018

Scope of Work:

  • National Conductor has performed Borescope inspections, Cryogenic cleaning, silver plating, and for the last 4 years we have rebuilt their Non-Seg bus on each unit.
  • NCC will be completing Unit 5 & 6 in the fall of 2019.

Columbia Energy Center

Location: Richland, Washington
Completion Date:  

Scope of Work:

  • NCC performed Silver Plating onsite.

Pleasant Valley

Location: Dexter, MN
Completion Date:  2018

Scope of Work:

  • National Conductor has performed Borescope Inspections, Cryogenic cleaning, silver plating, gasket replacement, bellow replacement, rain guard installation, and emergency calls for Pleasant Valley.

5 Year Work History

Borescope

HINES ENERGY CENTER
RUMFORD ENERGY CENTER
ELGIN ENERGY CENTER
MIDLAND COGENERATION
LOWER MONUMENTAL LOCK & DAM
CRYSTAL RIVER
DOLET HILLS
HINES ENERGY COMPLEX
MINNESOTA RIVER STATION
FARIBAULT ENERGY STATION
HINES ENERGY COMPLEX
GERALD GENTLEMEN
HINES ENERGY COMPLEX
ELK RIVER GENERATING STATION
MINNESOTA RIVER STATION
FAIRBAULT ENERGY STATION
ALMA STATION
DAN E KARN POWER STATION
GILA BEND
GILA BEND
GRDA
PLANT BARRY

PLANT OLEANDER
ELK RIVER POWER STATION
CAMBRIDGE PEAKING POWER
LAKEFIELD GENERATING
DOLET HILLS
PLANT OLEANDER
NEWINGTON
BELLINGHAM ENERGY FACILITY
BROWNS FERRY
MIDLOTHIAN
PLEASANT VALLEY
LUDINGTON
PLUM POINT
HERMISTON
LOWER MOUNT BETHEL
PLEASANT VALLEY PEAKING STATION
FAIRBAULT ENERGY PARK
PLEASANT VALLEY
ELK RIVER EMERGENCY
BLACKSTONE ENERGY CENTER
MINNESOTA RIVER STATION
ANGUS ANSON

Silverplating

BRAIDWOOD
PLEASANT VALLEY PEAKING STATION
GAINSVILLE ENERGY CENTER
BRAIDWOOD

LUDINGTON
LOWER MOUNT BETHEL
CLEVELAND COUNTY
COLUMBIA ENERGY CENTER

Cryogenic Cleaning

LUDINGTON
PLEASANT VALLEY
HERMISTON
BROWNS FERRY
MOSS POINT
FARIBAULT ENERGY PARK
DAN E KARN POWER STATION
DOGWOOD
NEBRASKA CITY POWER STATION
PLEASANT VALLY

BIG STONE
BROWNS FERRY
ELK RIVER POWER STATION
CAMBRIDGE PEAKING POWER
JH CAMPBELL
BROWNS FERRY
ALMA STATION
GRDA
PLANT BARRY
ELGIN ENERGY CENTER

View Our Complete Project History