Keller Electrical Repair Division

Since 1982, Keller has provided first class industrial repair services to our customers. Keller Electrical services and supports all types and sizes of electric motors, generators and transformers. Keller Electrical's EASA repair facility boasts a fully staffed machine shop and is equipped to meet all your electrical repair needs. Our technicians are OSHA, MSHA, and EASA trained to perform a multitude of tasks in a safe and timely manner. Keller Electrical uses modern service equipment and calibrated instrumentation to ensure your electrical repairs can be completed correctly with the minimum amount of downtime. We also provide many value added services like computerized vibration analysis, dynamic balancing, laser alignment, transformer and switchgear repair, complete machining capabilities, crane & hoist service and much more. From routine maintenance and troubleshooting to specialty functions, Keller Electrical personnel have the training and skills to assist all of your electrical maintenance needs. Keller Electrical knows repairs.

24 hours a day/ 7 days a week, Keller Electrical is ready to respond to your needs.

A summary list of repair services is listed here:

Motor & Generator

AC/DC Motor & Generator Rewinds and Repairs (fractional HP up to 10,000HP)
  • Class H Materials
  • Inverter Duty Copper Magnet Wire (Quad Enamel)
  • End-turn Taping for Added Winding Mechanical Strength
  • Stator and Rotor Core Loss Testing
  • Stator Lamination Repair and Replacement
  • Rotor Rebar
  • Redesign of Electric Motors through EASA affiliation
  • Wound Rotors and Armatures
Dual Options for Treating Windings
  • Vacuum Pressure Impregnation system using Epoxylite 478
  • Polyester 1105 Resin
Specializing in all types of Horizontal, Vertical, Submersible Motors and Blowers
  • Flyght, Fairbanks Morse, Meyers, Barnes, Hydromatic
  • Hoffman, Lamson, and Spencer Blowers
  • DC Motors and Motor Generators
  • Traction Motor Repair
No-Load Testing up to 4160 Volts
Underwriters Lab Recertification of Explosion Proof Motors
Full Documentation of Repairs with Reports Upon Request
Keller Electrical Maintains a Stock of Refurbished Motors

Transformer Repair and Preventative Maintenance

  • Oil Analysis with Detailed Report
  • Rewind and Repair Capabilities for all types of Transformers ( Ø Phase, 3 Phase, Dry Type, Oil Filled and Variable Voltage)
  • On-site and In-house Testing Capabilities
  • On-site Preventative Maintenance
  • Stock of Refurbished Transformers

Machine Shop

  • Fully Staffed Machine Shop
  • Laser Alignment Systems
  • Computer Aided Mechanical Systems
  • Lathes up to 45" swing capacity
  • Milling Machines
  • Turning and Undercutting of Armatures
  • New Shaft Fabrication
  • Key Way Cutting
  • MIG, TIG and ARC Welding Capabilities
  • Coating of Bearing Surfaces
  • Dynamic Balancing

Mechanical Field Services

  • Computerized Vibration Analysis with CAT II Certification
  • Field Dynamic Balancing
  • Field Laser Alignment
  • Infrared Analysis - Motors and Control Systems with Detailed Report
  • Onsite Bearing and Pump Seal Removal and or Replacement
  • Generator Inspection
  • Failure Analysis
  • Boom Truck and Crane Services

Emergency Motor Repair

  • Troubleshooting
  • Apparatus Removal & Installation
  • On-site repairs
  • On call 24 hours a day / 7 days a week


Any Questions? Click Here

Click here to download KEI's Warranty - Standard Terms & Conditions

Click here to download EASA Recommended Practice