Full Service Electric Motor & Generator Repair Is Our Priority
At Renown Electric, continuously improving our electric motor & generator repair and service capabilities has always been our priority. Our Large Motor and Generator Service Centre is equipped to 50 ton capacity and focuses on repairing and refurbishing all types of large rotating machines. Thanks to our state-of-the-art equipment, we can guarantee our customers a full complement of services for all their rotating equipment needs.
Our team of highly skilled winders, technicians, electro-mechanics, and engineers have an extensive breadth of knowledge and vast experience working with large motors. We also have a group of committed quality control, health and safety, procurement, administrative support, and logistics personnel to support this team and ensure all of your service needs are completed to the highest standards.
Four Key Areas to Serve You
High Bay Workshop
Our High Bay Workshop station is where motors and generators undergo disassembly, cleaning, and painting. This area provides control over these processes, as they often generate airborne contamination. Any contamination that is produced is kept isolated from all other shop operations.
Winding Workshop
The Winding & Coil Manufacturing Workshop area is where the rewinding of stators, rotors, and armatures takes place. The entire area is climate controlled to ensure all coil making and rewind work is performed in the most appropriate conditions. The area features higher air pressure to aid in Foreign Material Exclusion (FME). These measures are crucial in reducing or minimizing small airborne particulates and preventing the entry of humidity and moisture into sensitive motor and generator components.
Main Workshop
Various processes take place in the Main Workshop area. This is where motors and generators undergo inspection, testing, and reassembly.
Loading/Unloading Bay
Our Loading and Unloading Bay features a full tractor-trailer drive-in, enabling vehicles to completely pull into the area to drop off loads. The bay features a 50-ton bridge crane and a wide load service door that leads straight to the High Bay Workshop area. To accommodate loads that exceed the crane capacity, this area is also equipped with specialized mobile rigging.
AC Motor Overhaul and Repair
AC Motor remanufacturing capabilities including:
- Inspection, testing, repair, overhaul, and rewinding of AC motors up to 60,000HP, 13.8kV
- Dynamic balancing of rotors up to 44,000 lbs
- Rewind and re-insulation of synchronous field pole rotors
- Rewinding of mush wound and form wound stators up to 13.8kV
- Repair, machining, and replacement of slip rings
- Induction motor squirrel cage rotor rebar and end ring replacement
- Rewind of Induction Motor Wound Rotors
- Re-stacking of stator and rotor core laminations
If your AC generator malfunctions or stops working completely, it can cause costly and critical downtime for your company. However, at Renown Electric, we have highly skilled technicians who can expertly repair your generator. Our team offers the following services to ensure your AC generator will run at peak performance:
- Inspection, testing, repair, overhaul, and rewinding
- Hydroelectric generator rotor pole rewinding and re-insulation
- Turbogenerator rotor retaining removal and inspection
- Hydroelectric generator stator rewinding up to 13.8kV
- Synchronous generator stator rewinding up to 13.8kV
- Turbogenerator stator rewinding up to 13.8kV
- Turbogenerator rotor rewinding
DC Motor and Generator Overhaul and Repair
Our highly skilled team is well-versed in the repair and maintenance of DC motors and generators.
We offer the following services:
- Inspection, testing, repair, overhaul, and rewinding of large DC motors and generators
- Dynamic balancing of armatures up to 44,000 lbs
- Re-insulation of commutator (pole-face) bars
- Commutator repair and rebuild
- Commutator replacement
- Equalizer replacement
- Riser tray replacements
- Commutator machining and undercutting
- Rewinding and re-insulation of field coils (main field and interpole coils)
- Rewinding of armatures
Mechanical Repairs and Machine Shop Services
In our new refurbishing and repair service center, we offer a range of mechanical repair and machine shop services. With advanced machining technology, we can perform turning, grinding, shearing, milling, and other machining operations.
Additional capabilities include:
- Shaft repair, modification, and replacement
- Weld repairs to motor and generator components
- Sleeve bearing re-babbitting
- Boring and bushing of bearing housings
- Sleeve bearing inspection and repair
- UT Bond Checking of Babbitt Bearings
- NDT Inspection Services
- High-Frequency Induction Brazing
- Resistance & Induction Brazing
- Slow Roll Test
Electrical Testing Capabilities
Our new troubleshooting services for large-scale electric motors and generators are all-inclusive, from mechanical to electrical aspects.
We offer the following electrical testing capabilities:
- Insulation Resistance and Polarization Index
- DC Hi-Pot testing up to 80kVdc
- Stator core loss test and hot spot scanning using an infrared camera
- Winding Resistance
- Surge testing up to 40kV
- AC voltage drop test
- Vibration Analysis
- RSO (Repetitive Surge Oscilloscope) test
- AC Hi-pot testing up to 60kVac
- Laser Alignment
- AC & DC Drive repairs on-site and in-house
Additional Equipment
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Welding & Brazing
To weld refurbished and repaired components and assemblies, our facility has a Lincoln 275 Precision TIG welder. For our brazing operations, we offer high-volume capabilities with two high-frequency induction brazing machines and two Dynaflux resistance brazing units. Our induction brazing machines are Minac 12 Twin units.
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Electrical Testing
Quality control is an important part of our services. We offer robust testing services with the following electrical test equipment:
Electrom Winding Analyzer (Surge Tester), TIG II Mini with 40kV Power Pack
Phenix AC Hi-Pot Test Set, 0-3/6kV 20/10A 60kV
40kV PJ Surge Tester, Model 9040
Hipotronics HD100 40 KVDC Hi-Pot Test Set
Digital Low Resistance Ohmmeter DLRO 10X -
Machine Shop
In our machine shop, we have full lathing, boring, and milling capabilities through the following equipment:
Lathing units:
(Large workpieces) Accu-turn 1120 CNC lathe, 70″ swing
(Small workpieces) Clover 20/29 lathe, 18″ swing
Boring:
STANKO Model 1516 Vertical Boring Mill with a 55″ table, four-jaw chuck, and 62″ swing
Milling:
A 16″ x 70″ bed milling machine with digital readout capabilities