Service · Generator Repair
Industrial Generator Repair
Independent multi-OEM workshop for stator + rotor repair, electrical rewind, ELCID core restoration, brushless excitation diagnosis. Capacity range from 1 to 365 MVA. Under IEEE 56 + EASA AR100 + ISO 9001:2015.
Service overview
Industrial Generator Repair — what we deliver
Industrial generator repair requires multi-disciplinary capability: mechanical disassembly + electrical rewind + insulation system + brushless excitation + dielectric testing + final commissioning. As an independent multi-OEM service provider, TEMISA Power Gen handles full-scope repair on synchronous generators from 1 to 365 MVA on site, with shop intake depending on component weight and dimensions, from any major OEM (ABB, Siemens Energy, GE Vernova, Toshiba, Mitsubishi, Hitachi, Brush, WEG, Stamford, etc.) — outside OEM warranty period per the EASA AR100 standard, with IEEE 56 as reference guide.
Workshop capabilities
Technical scope
- Stator winding rewind with VPI vacuum-pressure impregnation Class F or H
- Rotor field coil rebuilding (salient-pole + cylindrical) under EASA AR100
- ELCID core assessment (methodology documented in CIGRE TB 257, acceptance criteria agreed in the protocol) + core repair + retaining-ring NDT
- Brushless excitation diagnosis and component replacement
- Dielectric testing (Megger + IP + Tan Delta + DP + Hipot)
- Surge Comparison + Bridge Test under EASA AR100 for inter-turn short detection
- Dynamic balancing G2.5 under ISO 21940 with 60-ton workshop crane
- Commissioning with IEEE 115 acceptance tests, prior to grid interconnection
Applications
Where we apply this service
Post-failure emergency repair
Major fault repair: lightning strike damage, stator flashover, rotor short, bearing failure. Emergency assistance contact in Mexico and Central America; mobilization timing confirmed per project.
Scheduled major overhaul
Programmed repair during planned shutdown windows, at intervals set with the manufacturer's recommendations, operating hours and diagnostic results.
Post-acquisition condition restoration
Used + secondhand generator acquisition with required restoration and recommissioning with IEEE 115 acceptance tests.
Rewind + commissioning bundle
Full stator/rotor rewind + complete recommissioning under one fixed-price contract applying the EASA AR100 standard.
Frequently asked questions
How long does industrial generator repair typically take?
Lead time depends on the diagnosis and scope (stator rewind, rotor work, core repair). We provide a formal schedule on quotation review including critical-path activities and procurement timeline for any imported components.
Do I lose OEM warranty by using an independent repair workshop?
Only if the generator is still within original OEM warranty period (typically 2-5 years from commissioning). Once outside OEM warranty, independent repair workshops working under ISO 9001:2015 and applying the EASA AR100 standard are fully compatible without affecting asset value, insurance coverage, or operational compliance. Most industrial generators in Mexico operate outside OEM warranty for the majority of their useful life (25-40 years total).
What's the cost range for major industrial generator repair?
Cost varies significantly by capacity (MVA) and scope (stator only / rotor only / full overhaul) + condition of magnetic core (ELCID test required before rewind) + OEM-specific components requiring procurement. Every project is quoted case by case: we provide formal quotation after initial diagnostic visit + customer-supplied operational history.
Other services
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Contact
Need service for your industrial generator or turbogenerator?
Response and quote timing confirmed after reviewing your request. Emergency support by arrangement across Mexico and Central America.
Direct line
+52 33 3614 2460Quote requests
ventas@temisapowergen.mxService hours
Emergency support by arrangement
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Tell us what you need
Our 4-step quote form captures the essentials: service type, equipment, capacity and contact. Response and quote timing depend on the information received and agreed scope.
ISO 9001:2015 · IEEE / IEC