Service · Field Services
Field Services On-Site for Generators and Motors
TEMISA Power Gen field crews dispatched to the client's facility for laser alignment, dynamic balancing, cryogenic cleaning, rotor extraction, commissioning, in-situ major maintenance and emergency response. Coverage in 15+ Mexican states plus Central America. Service under CFE LAPEM W4200-12 and ISO 9001:2015 — the same documentation rigor as the shop, executed at the plant.
On-site execution · Mexico and Central America
IEEE 95/115IEC 60034-27ISO 21940ISO 9001:2015CFE LAPEM W4200-12Service overview
What our field crews execute on-site
Crews arrive with calibrated instrumentation, certified technicians and a documented work plan. When an intervention requires shop conditions — vacuum impregnation, heavy machining — we transfer the part to Tlajomulco; the rest is executed in-situ with the same ISO 9001:2015 traceability.
- Laser shaft alignment of couplings under ISO 21940 with documented reports
- Dynamic balancing on rotors that cannot be moved to the shop
- Cryogenic cleaning of turbines and windings without full disassembly
- Rotor extraction and insertion with cranes up to 60 tons at the client site
- Commissioning and grid synchronization under IEEE 115 in-situ
- Major maintenance executed on-site when shop transfer is not viable
- Electrical testing on-site: hipot AC/DC, megger, polarization index, power factor
- Partial discharge testing on-site with calibrated portable equipment
- Borescope inspection of cores and air gap without full disassembly
- Priority emergency response coordinated with the operator on critical assets
When to apply it
Scenarios where field service beats shop transfer
Emergency managers, plant maintenance leads and oil & gas operators rely on field service when downtime cost exceeds the premium of on-site execution — or when transport logistics themselves are the bottleneck. We size the crew, the equipment and the schedule to the asset and the outage window.
- Generator failure on a critical asset where every hour of downtime costs revenue
- Plant maintenance window too short for shop transfer and return
- Heavy offshore or remote site where transport logistics outweigh shop benefits
- Diagnostic before committing to a major outage — borescope plus electrical tests
- Acceptance and commissioning of a newly installed or rehabilitated unit
- Periodic preventive maintenance under contract — annual or biannual on-site
Standards and certifications
Standards we apply on every field intervention
Instrumentation is calibrated under ISO 17025 traceability, tests are executed under current IEEE and IEC standards, and every intervention is documented under ISO 9001:2015. The client receives a signed acceptance protocol with raw data for independent verification.
- IEEE 95-2002 — Insulation testing of generators with HV direct current
- IEEE 115 — Test procedures for synchronous machines
- IEEE 56 — Recommended practice for stator core testing
- IEC 60034-27-2 — On-line partial discharge measurements on stator windings
- ISO 21940 — Mechanical vibration: rotor balancing
- ISO 10816 — Mechanical vibration evaluation of machine vibration
- ISO 9001:2015 — Quality management system
- CFE LAPEM W4200-12 — Generators 1 to 100 MVA
Why TEMISA Power Gen
Six differentiators for on-site field services
Operational coverage in 15+ Mexican states plus Central America projects
Field crews with instrumentation calibrated under ISO 17025 traceability
Priority response for emergencies on critical assets — active duty year-round
Coordination with CFE and CENACE for grid dispatch and outage windows
ISO 9001:2015 traceability per work-order number across every intervention
Senior specialists with 20+ years in field services under CFE LAPEM W4200-12
Related services
Services frequently combined with field interventions
Service
24/7 emergency response
Priority field response for critical assets — generators, motors and plants under contract or single-event basis. National coverage with active technical duty.
See serviceService
Electrical testing
On-site electrical testing suite: hipot AC/DC, megger, polarization index, power factor, surge comparison and partial discharge under IEEE and IEC standards.
See serviceService
Commissioning
Acceptance, hipot, surge comparison and grid synchronization under IEEE 115 on newly installed or rehabilitated generators. Complete documentation package.
See serviceRelated equipment
Equipment we serve on-site
Equipment
Synchronous generators
1 to 350 MW in cogeneration, manufacturing, mining and hydroelectric — field service for legacy and modern installations.
See equipmentEquipment
Turbogenerators
On-site service for turbogenerators in thermal, combined-cycle and geothermal plants. Borescope, balancing and acceptance testing.
See equipmentReference case
In-situ major maintenance at a cogeneration plant
On-site
No shop transfer
15+
States covered
Documented
HV tests under standard
TEMISA field crew at a cogeneration plant for disassembly, inspection, electrical testing and reassembly of a synchronous generator without moving the unit to the shop. The client kept the adjacent plant operating throughout the intervention. Work executed under CFE LAPEM W4200-12 with full hipot, polarization index and power factor testing package, signed and traceable under ISO 9001:2015.
FAQ
Frequently asked questions — Field services on-site
Preguntas que recibimos con frecuencia. ¿No encuentras la tuya? Escríbenos a ventas@temisa.mx.
What does field service mean for industrial generators and motors?
Field service is the execution of maintenance, electrical testing, commissioning or in-situ repairs at the client's facility without moving the equipment to a shop. It covers alignment, balancing, electrical tests, borescope inspection and minor repairs. Interventions that require vacuum impregnation or heavy machining are transferred to the Tlajomulco workshop — the rest is executed in-situ with the same ISO 9001:2015 traceability.
Which Mexican states do you cover for on-site service?
Documented operational coverage in Jalisco (headquarters), State of Mexico, Guanajuato, Michoacan, Hidalgo, Nuevo Leon, Sonora, Chihuahua, Veracruz, Mexico City, Tamaulipas, Coahuila, Queretaro, San Luis Potosi and Baja California, among others. For Central America we have documented projects across the region. Additional coverage is available under commercial request.
How fast can you mobilize a field crew for an emergency?
Priority response on critical assets coordinated with the operator. Technical duty is active year-round and dispatch is coordinated by WhatsApp or phone. Mobilization to Central America depends on customs and flight availability for the specific country.
What work can you complete on-site without shop transfer?
Preventive and predictive maintenance, laser shaft alignment, dynamic balancing in-situ, electrical testing (hipot AC/DC, megger, polarization index, power factor), partial discharge measurement, borescope inspection of the core, cryogenic cleaning, bearing and AVR replacement, commissioning and grid synchronization. Work that requires shop conditions: full stator rewind, heavy shaft machining and vacuum impregnation.
Do you coordinate grid dispatch windows with CFE or CENACE?
Yes. For assets under dispatch we coordinate the outage and return windows with CFE and CENACE. The coordination is part of the field service schedule and is closed with the client at quotation stage to prevent deviation penalties.
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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Our 4-step quote form captures the essentials: service type, equipment, capacity and contact. Response in less than 24 hours, formal quote within 48.
CFE LAPEM W4200-12 · ISO 9001:2015 · IEEE / IEC