Do You Have A Construction Project We Can Help With?
At S.T. Cotter Turbine Services, Inc., we are committed to providing cost-effective, on schedule, high-quality repair, parts, and services for industrial gas combustion turbines and generators. This includes turbine generator maintenance and turbine generator technical services.
Field Turbine Generator Services
As a complete turnkey service provider, we understand that customers demand a complete solution. Not only do we offer technical direction, labor and turbine repairs, we also offer a full line of combustion turbine generator services, including rewinds, re-wedges, electrical testing, excitation upgrades and electrical diagnostics, as well as CO2 blasting.
Stator Services
S.T. Cotter offers complete stator services, from visual inspection and testing by experienced personnel to a complete rewind. We provide all of the standard electrical and mechanical testing and inspections plus EL-CID, loop test and end winding stiffness (“Bump”) testing and analysis High Potential – commonly referred to as Hi-Pot testing.
Our stator services include:
- Insulation Resistance
- DC Resistance
- EL CID – Electromagnetic Core Imperfection Detection testing is used to detect insulation breakdown between the laminated stator core plates in generators, exciters and large electric motors. Rotor Shorted Turn
- Stator Wedge Tightness
- Mechanical Resonance
- Leak Testing
- Winding & Insulation – Inspection & Repair
- Core – Inspection, Repair, Retightening
- Re-Wedging
- Frame & Mechanical – Inspection & Repair
- H2 Seal Repair
- Field Work
- On-Site Stator Restack Rewind Capability
Exciter Services
Our personnel at S.T. Cotter have extensive experience with brushless exciter design, manufacture, maintenance and testing. Our knowledge gives us the ability to repair or rebuild components to improve exciter performance. S.T. Cotter’s refurbishment program includes a complete disassembly of all removable components, testing to identify the status of each electrical component and the ability to replace components.
We offer re-banding services and complete rewinds of the stator and rotor winding assemblies plus PMG rewinds. All these services extend the life of the exciters and improve their performance. We provide Inspection, testing and replacement of diodes, fuses and diode modules.
Our stator services include:
- Inspection, testing and armature winding repair
- Inspection, testing and diode wheel forging repair
- Reassembly and alignment of the exciter rotor
- Frame & Mechanical – Inspection & Repair
- H2 Seal Repair
- Field Work
- On-Site Stator Restack Rewind Capability
Regardless of whether you need steam turbine services, combustion turbine services, or gas turbine services for your project, we have you covered.
For more information about how we can serve all of your millwright service needs for your petrochemical industry application, call us today at (612) 424-5614 or complete our contact form. or
or request a quote.