Asset baseline
History, condition and selected inspections to establish the starting point and outstanding findings.
LTSA · Generators and auxiliaries
Generator maintenance contracts (LTSA)
Plan maintenance, diagnostics and interventions around a technical baseline, defined responsibilities and condition follow-up. We develop the scope around your equipment, operating duty and outage windows.
Request a maintenance planEquipment comes first
Field work · TEMISA
A major intervention starts with access.
Generator lifting at a plant. Removal routes, lifting equipment and responsibilities need to be reviewed before agreeing an intervention.
Explore field servicesThe starting point
One asset. A fleet. An agreed plan.
An LTSA can help organize recurring maintenance, prepare an intervention or review coverage before a contract renewal. The first discussion identifies the equipment, decision-makers and next work window.
The initial scope is the generator and its defined auxiliaries. We review each application — cogeneration, hydro, thermal, geothermal, wind or marine — before confirming coverage and resources.
Review my equipment or fleetScope by agreement
What we can plan with you
Scheduled maintenance
Activities and intervals agreed according to design, operating duty, condition and outage windows.
Defined interventions
Scope, resources and acceptance testing for each intervention, with additional work identified separately.
Critical-parts planning
Review of spares, compatibility and sourcing. Purchasing, ownership and inventory reservations are expressly agreed.
Support and escalation
Owners, channels and remote or onsite response times defined according to location, access and confirmed resources.
Condition follow-up
Intervention reports, available trends and reviews of outstanding actions with maintenance and operations.
Tests are selected according to design and condition. IEEE and IEC references and the EASA AR100 standard are identified where relevant to the agreed procedure. An LTSA is not a certification or an identical package for every machine.
Experience you can review
Evidence before the proposal
Explore examples of interventions and technical notes to learn about our services. The scope and results of each intervention should be reviewed against its corresponding report. This content is not presented as LTSA contracts and does not guarantee results for your equipment.
See the equipment's condition
Define what to inspect
Plan access and handling
From removal to workshop work
Enlarge each photo to review the equipment and activity. You can use it as a reference when preparing your inquiry. These are interventions from different records, not a single job sequence or awarded LTSA contracts.
Removing the generator
A documented removal with limited access. The field note also covers return, coupling and alignment.
Read the removal field noteHandling an ABB generator
Access and handling around an ABB generator. Equipment configuration and site conditions define the work sequence.
Explore field servicesWorking on the rotor
The rotor outside the generator provides access for inspection and agreed workshop work.
Review maintenance scopeFrom inventory to a service program
- 01
Inventory review
Equipment, known condition and program objectives.
- 02
Technical assessment
Missing information, required inspection and service feasibility.
- 03
Scope proposal
Activities, schedule, deliverables, responsibilities and conditions.
- 04
Agreement and follow-up
Start after formalization, followed by periodic reviews of progress and open actions.
Prepare an inquiry
What each team needs
Maintenance
Prioritize findings and routines by asset.
Share history, nameplates, tests and open findings. Request applicable methods, intervention reports and agreed acceptance criteria.
Operations
Prepare outage windows and access conditions.
Provide criticality, operating duty, dates and restrictions. Define owners, interfaces and conditions for returning equipment to service.
Procurement
Compare proposals with equivalent scopes.
Review covered assets, term, deliverables, exclusions and additional work. Identify who provides parts, lifting and third-party services.
What should be documented
- Covered inventory, baseline, activities, intervals and review schedule.
- Reports, available results, recommendations, owners and follow-up of open actions.
- Parts, corrective work, lifting, transport and third parties: identify included items and those requiring additional quotes.
- Availability, emergency response or continuous monitoring are commitments only when expressly defined and supported by agreed resources.
Renewals, fleets and condition follow-up
For a renewal, provide the expiry date and existing coverage. For a fleet, prepare a list by site and unit; feasibility and schedules are reviewed per asset. In Mexico and Central America, confirm location, access and logistics before agreeing an intervention.
Periodic condition follow-up uses available measurements and trends; it does not imply continuous surveillance. Online monitoring requires assessment of sensors, data, access and responsibilities.
Review partial-discharge monitoringTo start: site and country, equipment, objective and next work window.
Have manufacturer, model, rating, operating duty and history ready when available. You can start with incomplete data: the technical review will identify what is missing. Share technical documents through the channel agreed with the team.
Prepare my scopeStart with your equipment
Prepare your LTSA scope review
Choose what you know. On the next page, add the site, available technical details and your contact information. Your selections will be carried over.
This step does not send a request or commit you to a contract.
FAQ
Frequently asked questions about the LTSA
Questions we often receive. Can't find yours? Email us at ventas@temisapowergen.mx.
What is a generator LTSA?
A Long-Term Service Agreement defines assets, activities, responsibilities and service conditions over a multi-year period. It may combine scheduled maintenance, diagnostics and technical support. TEMISA proposes the scope after reviewing equipment information and condition.
Does it cover both the generator and the turbine?
The initial proposal focuses on the generator and expressly included auxiliaries. The turbine, plant controls and other systems require a separate assessment and scope. The agreement must identify interfaces with operations, other contractors and the manufacturer.
Can you review a mixed-brand fleet?
We can review the inventory to assess an asset-specific program. Feasibility depends on design, available information, access and required resources. Independent service does not imply representation or authorization from each manufacturer.
What if I already have an OEM agreement?
The first step is to review existing coverage, warranty and agreement restrictions. Any viable complementary scope is identified before preparing a proposal; replacement of the current agreement is not assumed.
Does an LTSA include every repair and spare part?
Only expressly agreed activities and items are included. Corrective work, parts, disassembly, lifting and third-party services may be included or quoted separately. The proposal identifies these conditions so you can compare equivalent scopes.
Do you guarantee availability or savings against the OEM?
No availability guarantee or savings percentage is set without assessing the asset and responsibilities. Any commitment requires agreed measurement, conditions and resources. Economic comparisons require proposals with equivalent scopes.
What information do I need to start?
Site and location, equipment type and unit count, manufacturer and nameplate when available, maintenance history and the next outage or contract renewal. You can start with incomplete information; the technical team identifies what is needed to define the scope.