Documented case · Turbine-generator train
Generator replacement in a gas turbine train in the State of Mexico
Removing the generator from its enclosure and installing a replacement with different supports defined the mechanical challenge. TEMISA carried out generator removal and mechanical installation of an IDEAL ELECTRIC replacement in a Solar Turbines gas turbine train in the State of Mexico.
TEMISA Power Gen · Published
| Item | Record |
|---|---|
| Removed generator | IDEAL ELECTRIC · 6.6 kV · 1,800 rpm |
| Replacement generator | IDEAL ELECTRIC · 6.6 kV · 1,800 rpm |
| Common electrical data | 60 Hz · 0.80 power factor · class F insulation |
| Train configuration | Solar Turbines gas turbine → gearbox → generator |
| Project location | State of Mexico, Mexico |
| Field intervention | September 17–28, 2026 · 12 calendar days |
| TEMISA scope | Preparation, disconnection, removal, logistics, insertion, anchoring, pre-alignment and system reinstatement |
| Plant-supplied resource | 100 t crane for removal and insertion; this rating is the crane capacity |
The challenge: enclosure access and different support geometry
Enclosure access and obstructions constrained removal. Differences in support geometry required positioning and pre-alignment adjustments for the replacement generator.
Dismantling: disconnecting and retaining references
Work began with access arrangements, permits and lockout/tagout (LOTO). Alignment references were recorded, and power, communications, instrumentation and space-heater connections were disconnected. Lubrication lines, guards and enclosure components were removed to open the extraction route and protect parts that would later be reinstated.
Generator removal through lifting and controlled movement
The crew installed and levelled an extraction frame. Hydraulic jacks, temporary supports, machinery skates and chain hoists were used to lift and progressively move the generator to the enclosure exit. The plant supplied a 100 t crane for removal and insertion of the replacement. The crane rating does not represent generator mass.
Lowboy transport from the Tlajomulco workshop
The replacement generator was prepared at the TEMISA workshop in Tlajomulco de Zúñiga, Jalisco. The logistics scope covered lowboy transport to the State of Mexico and return of the removed generator to the workshop. Extraction, lifting, loading, transport and receipt are separate activities with defined resources and responsibilities.
Mechanical installation and pre-alignment
After insertion, the crew installed anchors and adjusted pre-alignment references to address the different base geometry. Lubrication, power, excitation, instrumentation, panels and guards were reinstated. The record includes tightening, terminal-box sealing and RTD/PT-100 signal checks.
TEMISA is an independent workshop. Solar Turbines and IDEAL ELECTRIC are trademarks of their respective owners and are cited solely to identify the equipment.
FAQ
Frequently asked questions
Questions we often receive. Can't find yours? Email us at ventas@temisapowergen.mx.
What information is needed to quote a generator replacement?
Nameplates for both generators, photographs of the enclosure and access route, verified dimensions and mass, location and planned intervention window. The proposal must also identify who supplies the crane, transport platform, disconnections and receiving resources.
Can removal, transport and installation be included?
Yes. The scope can combine those stages. The proposal should separately define preparation, removal, lifting, loading, transport, unloading, positioning and system reinstatement, including resources and responsibilities.
Can a replacement have a higher nameplate rating?
A change in rating requires electrical, mechanical and complete-train review. Matching brand, speed or voltage alone does not demonstrate interchangeability.
Does TEMISA or the plant supply the crane?
This is agreed for each project based on access, mass and the handling plan. The plant supplied a 100 t crane for this case; that resource is not a universal requirement for other generators.
How is a generator replacement schedule defined?
The schedule depends on access, dimensions, scope, logistics and resource availability. The dates in this case record describe this intervention and are not a standard lead time.
Plan the intervention
From your equipment to a defined scope
Share the information you have. We will review conditions to define resources, responsibilities and project stages.
- Nameplates for the existing generator, replacement and prime mover.
- Photographs of equipment, connections, base, enclosure and access.
- Verified dimensions and mass, plus support and handling documentation.
- Extraction and receiving routes; transport origin and destination.
- Project location, entry restrictions and planned intervention window.
- Required stages and resources supplied by each party.