Transformers & substations · Grupo TEMISA
We supply new transformers and support the asset through its service life
A single counterpart to assess, supply and service the asset. If keeping it is the right call, we diagnose and rehabilitate. If it needs replacing, we can specify, supply, test and commission the new transformer. We do not manufacture: we select the maker that meets your specification.
70+
Years · Grupo TEMISA
230 MVA
Capacity served
230 kV
Up to high voltage
24/7
Critical emergency
“Your transformer or substation returns to the level the manufacturer specified — or we tell you exactly why it can't, with real electrical data and a documented protocol.”
Act with precision before reacting to failure.
Services
Expert care of your transformation and distribution assets
Every intervention follows the same logic: context, diagnosis, intervention and documented result. No unsupported claims.
Power transformer maintenance
Preventive, predictive and corrective maintenance for distribution and power transformers, 75 kVA to 230 MVA.
Learn moreTransformer rehabilitation & repair
Major rehabilitation and repair — including shell-type (armored) transformers — up to 230 MVA.
Learn moreElectrical testing & diagnostics
TTR, power factor/Tan Delta, insulation resistance, DGA and SFRA with Omicron and Megger.
Learn moreSubstation maintenance
MV/HV substation maintenance: breakers, protection, instrument transformers and commissioning.
Learn moreThermographic inspection
Infrared predictive inspection of transformers and substations, performed under load.
Learn more24/7 emergency
Immediate response for critical assets with unplanned outages, across Mexico.
Learn moreSectors
Industries that trust us with their operational continuity
From hydroelectric generation to continuous-process manufacturing: we care for the electrical assets your operation depends on.
Industry & manufacturing
Nearshoring, steel, cement, automotive
Data centers
Continuous critical load, maintained on the redundant path
Mining
Harsh-environment reliability
Oil & gas
Continuity for critical processes
Hydroelectric
Power generation assets
Utilities
Distribution and transmission
Infrastructure
Public and private projects
Renewables
Solar and wind substations
Backed by
A specialized division of Grupo TEMISA
TEVKO operates from the shared plant in Tlajomulco, Jalisco — 5,600 m², 60-ton cranes, industrial ovens and an electrical test bench — backed by more than six decades of Grupo TEMISA experience in the electromechanical sector behind every intervention.
Our work in plant and field
Talk to a transformer specialist
Tell us about your asset and we'll respond with a diagnosis and a tailored quote — not generic pricing.