Equipment · Hydroelectric
Hydroelectric Generator Repair & Rewinding
Independent multi-OEM workshop for salient-pole hydrogenerators 5-350 MVA. CFE LAPEM W4200-12 + IEEE 56 + IEC 60034 + ISO 9001:2015. Specialized in pole-coil rewinding, stator VPI, ELCID core diagnosis.
Workshop capabilities
Specialized hydroelectric generator service
Salient-pole hydrogenerators require know-how that few independent workshops in Mexico hold. We perform field coil rewinding, pole rebuilding, stator VPI rewind, magnetic core repair, brushless excitation diagnosis, and final commissioning under CFE LAPEM W4200-12.
- Salient-pole rotor rewinding (4 to 80+ poles) including pole rebuilding, field coil reinsulation, dovetail repair
- Stator winding rewind: form-wound and Roebel bars, multi-turn coils, with VPI vacuum-pressure impregnation
- Magnetic core repair: ELCID core test (IEC 60034-15) + lamination restoration where needed
- Pole-to-pole voltage drop test under IEEE 115 to detect inter-turn shorts on field coils
- Vibration analysis on Kaplan + Francis + Pelton runners under ISO 10816
- Thrust + guide bearing diagnosis (Kingsbury, Michell) under API 670 standard
- Generator commissioning under CFE LAPEM W4200-12 + IEEE 56 + IEC 60034
Coverage
Hydroelectric sectors we serve
CFE hydroelectric plants
From 5 MW small hydro to 750 MW Chicoasén-class units. Field service in remote sites with limited access.
Run-of-river plants
Andritz, Voith, GE Vernova Kaplan + Francis turbines coupled to synchronous generators with brushless excitation.
Pumped-storage hydro
Reversible pump-turbine generators with high-cycle operation requiring frequent diagnostic and reduced-MTBF overhauls.
Mini-hydro IPP / cooperatives
Small private hydroelectric facilities 1-15 MW under IPP contract with CFE. Multi-OEM coverage.
Multi-OEM coverage
Independent service for hydroelectric OEMs
Frequently asked questions
Do you rewind salient-pole field coils on hydrogenerators?
Yes. We rebuild and rewind salient-pole field coils on hydroelectric generators from 4 to 80+ poles, including dovetail repair, insulation system replacement (Class F or Class H), VPI impregnation, and final IEEE 115 pole-voltage-drop test for acceptance.
Which OEMs do you service on hydroelectric generators?
TEMISA Power Gen is an independent multi-OEM workshop. We service Voith Siemens Hydro, GE Vernova Hydro, ABB Hydro, Andritz Hydro, Toshiba and Mitsubishi salient-pole hydrogenerators. We are not an authorized representative of any of these manufacturers (except TD Power Systems under formal Service Agreement).
How long does a hydrogenerator major overhaul take?
Typical timeline per generator size: 5-25 MVA → 4 to 6 weeks. 25-100 MVA → 6 to 10 weeks. 100-350 MVA → 8 to 12+ weeks. Field overhaul takes longer due to disassembly logistics. We provide formal schedule on quotation review.
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.
Direct line
+52 33 3614 2460Quote requests
ventas@temisapowergen.mxService hours
24/7 emergency support
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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