Wind Turbine Generator Repair in Mexico

No. TEMISA Power Gen services one part of the wind turbine: the electrical generator. We diagnose, repair and rewind the stator, rotor, slip rings, excitation system and windings. Blades, gearbox, nacelle, control and converter are handled by the turbine manufacturer or the wind farm operator.

Doubly-fed induction generators (DFIG), permanent magnet generators (PMG) and synchronous generators. On a DFIG the work concentrates on the wound rotor, slip rings and brushes. On a PMG, on the stator and its electrical tests; work on the magnet rotor is evaluated project by project, depending on the generator design.

Both. On-site we carry out inspection, electrical tests and slip-ring and brush service when access to the generator allows it. Nacelle access, personnel qualifications and lifting are validated with the operator on each project. Rewinding and major repair are done at our workshop in Tlajomulco, Jalisco, Mexico.

The generator installed in Vestas, Siemens Gamesa, Acciona Nordex and GE Vernova wind turbines, and Indar, ABB, Leroy-Somer, The Switch and Alconza generators. We are an independent shop with no affiliation to those manufacturers; brand names are used only to identify the equipment. Feasibility is confirmed with the generator nameplate.

No. The power converter is outside our scope; the manufacturer or the wind farm operator handles it. The step-up transformer is serviced by TEVKO, the transformer and substation division of the same group. TEMISA Power Gen works only on the electrical generator.

The generator nameplate, the wind turbine brand and model, the symptom and alarms, previous test reports, the wind farm location, and whether the generator is still in the nacelle or already on the ground. With that information we define whether an on-site inspection or shipment to the workshop applies.