Sector · Wind Power
Wind Generator Service for Onshore Wind Farms
Onshore wind farm operators in Mexico and Central America manage mixed fleets of DFIG, asynchronous and direct-drive PMG wind generators under variable-speed operation, grid code obligations and remote-site logistics. TEMISA Power Gen serves wind generators with rewinding, electrical testing, dynamic balancing and field response. Pad-mounted step-up transformer service included. CFE LAPEM W4200-12 and ISO 9001:2015 documentation.
Onshore · DFIG · Asynchronous · PMG
IEC 60034IEC 61400IEEE 115ISO 9001:2015CFE LAPEM W4200-12Industry challenges
What wind farm operators are solving today
Wind generators operate under variable-speed conditions with slip rings, frequent partial-load grid coupling and an operating envelope that stresses windings, bearings and magnetic circuits in ways that no two-pole synchronous machine ever sees. Every overhaul is also a crane logistics project.
- Generator access via tower crane or nacelle hoist — every replacement is a logistics project
- DFIG rotor slip ring and brush wear from variable-speed operation under partial-load grid coupling
- PMG rotor magnet integrity and bearing inspection on direct-drive platforms
- Pad-mounted step-up transformer service inside or at the base of every turbine
- Grid code requirements for low-voltage ride-through and reactive capability after a fault
- Remote wind farm locations where field logistics and crew lodging require planning
- Mixed fleets — multiple OEMs and platforms within the same wind farm operator portfolio
Why TEMISA Power Gen
Six differentiators for wind power operations
Wind generator rewinding capability — stator and rotor rewinding for DFIG, asynchronous and synchronous wind generators
CFE LAPEM W4200-12 plus ISO 9001:2015 — documentary traceability for operator and IPP audits
Multi-OEM capability across the wind generator market — Acciona, Vestas, GE, Siemens Gamesa, Nordex and other platforms
Pad-mounted transformer service — diagnostic testing and oil maintenance for wind turbine step-up transformers
Field crews with documented experience in Mexican wind farms (Isthmus of Tehuantepec corridor and others)
In-shop overhaul for wind generators removed from nacelle via crane — full diagnostic, rewind and acceptance testing
Equipment we serve
Typical equipment in wind farms
Equipment
Wind generators
Maintenance and repair of wind generators — DFIG, asynchronous and PMG platforms. Stator and rotor rewinding in shop under CFE LAPEM W4200-12.
See equipmentEquipment
Synchronous generators
Synchronous generators for wind applications including direct-drive PMG platforms. In-shop overhaul and field service.
See equipmentEquipment
Wind farm step-up transformers
Pad-mounted transformer maintenance for wind turbines — diagnostic testing, oil sampling and repair. CFE LAPEM compatible documentation.
See equipmentKey services
Priority services for wind power
Service
Preventive maintenance
Wind generator preventive maintenance programs coordinated with wind farm O&M schedules. Inspections, bearing service and brush replacement on DFIG platforms.
See serviceService
Stator and rotor rewind
In-shop rewind of wind generator stators and rotors under CFE LAPEM W4200-12. Class F/H insulation and VPI impregnation.
See serviceService
Electrical testing
Megger, polarization index, surge comparison and Hipot testing on wind generator stator and rotor windings.
See serviceService
Dynamic balancing
Dynamic balancing of wind generator rotors after rewinding or bearing replacement under ISO 1940. In-shop balancing machine.
See serviceService
Field services on site
Field crews for in-nacelle inspection, brush replacement, vibration measurement and emergency response in onshore wind farms.
See serviceStandards applied
Standards we apply to wind power work
Every intervention is documented in a format compatible with wind farm operator audits, IPP investor reporting and grid code compliance. Full traceability by work-order number under ISO 9001:2015.
- IEC 60034-1 — Rotating electrical machines: rating and performance
- IEC 61400-1 — Wind turbines: design requirements (electrical interface)
- IEEE 115 — Test procedures for synchronous machines
- IEEE 95 — Insulation test of generators with HV direct current
- ISO 9001:2015 — Quality management system
- ISO 10816 — Mechanical vibration evaluation of machines
- ISO 1940 — Mechanical vibration: balance quality requirements
- CFE LAPEM W4200-12 — Generators 1 to 100 MVA
Reference case · Wind farm
DFIG rotor rewinding for an onshore wind farm operator
DFIG
Rotor rewinding capability
Class F
Insulation upgrade
ISO 1940
Rotor balance grade
DFIG rotor rewinding for an onshore wind farm in the Isthmus of Tehuantepec corridor. Rotor removed via specialty crane, transported to the shop, rewound under CFE LAPEM W4200-12 with Class F insulation, slip rings reconditioned and dynamically balanced under ISO 1940. Acceptance testing and reinstallation coordinated with the wind farm O&M team under ISO 9001:2015.
FAQ
Frequently asked questions — Wind farm generator service
Preguntas que recibimos con frecuencia. ¿No encuentras la tuya? Escríbenos a ventas@temisa.mx.
Do you rewind DFIG (doubly fed induction generator) rotors?
Yes. DFIG rotor rewinding is one of our wind sector capabilities. The rotor is extracted, the windings are removed, the rotor is cleaned and rewound under CFE LAPEM W4200-12 with Class F/H insulation and VPI impregnation. Slip rings are reconditioned or replaced, and the rotor is dynamically balanced before final acceptance testing.
Do you service wind farm pad-mounted step-up transformers?
Yes. Wind turbine pad-mounted transformers are part of our wind farm service scope. We perform diagnostic testing (insulation resistance, transformer turns ratio, power factor, oil dielectric strength and dissolved gas analysis), oil sampling and minor in-situ repair coordinated with the wind farm operator.
Do you work in Mexican wind farms?
Yes. We have documented service experience in onshore wind farms in Mexico, including the Isthmus of Tehuantepec corridor in Oaxaca where most installed wind capacity is concentrated. Field crews are mobilized with in-country logistics for lodging, transport and tooling. Reporting under ISO 9001:2015.
Which wind generator OEMs do you support?
We operate as an independent multi-OEM workshop with no lock-in. Wind generators from Acciona, Vestas, GE, Siemens Gamesa, Nordex, Suzlon and other platforms are supported. For OEM-specific platforms where TEMISA holds a service contract (TD Power Systems), service is delivered under the OEM warranty framework.
Can you remove a wind generator from the nacelle for shop overhaul?
Wind generator removal from the nacelle requires a specialty crane and a planned outage window. We coordinate with the wind farm O&M and the crane contractor for the lift, with TEMISA Power Gen receiving the generator at the workshop for diagnostic and overhaul. Once the work is complete, the generator is returned for reinstallation.
Contact
Need service for your industrial generator or turbogenerator?
Response within 24 hours. Formal quote within 48 hours. 24/7 emergency support across Mexico and Central America.
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CFE LAPEM W4200-12 · ISO 9001:2015 · IEEE / IEC