
Industrial Alternator Maintenance & Repair by Nidec Power
Secure performance. Reduce downtime. Extend alternator lifetime.
Since 1919, Nidec Power has been providing maintenance for Leroy‑Somer™ and Kato Engineering™ industrial alternators, supporting critical installations worldwide.
Industrial alternators operate under demanding electrical, thermal and environmental conditions. Over time, insulation ageing, contamination and mechanical wear inevitably impact performance and reliability. Without proper maintenance, these effects can lead to unplanned shutdowns, production losses and safety risks.
As the OEM, Nidec Power delivers precise, reliable and long‑lasting maintenance, fully aligned with the original design of your equipment and compliant with the most stringent industrial standards.
Why choose the OEM for your industrial alternator maintenance?
Because no one understands your alternator better than the manufacturer.
- Direct access to original design drawings and specifications
- Maintenance procedures defined by the engineers who designed the machines
- Complete mastery of assembly, disassembly and critical components
- Exclusive use of 100% genuine spare parts
Our service technicians benefit directly from this OEM expertise in the field, with support from Nidec Power design offices and technical experts.
Certified expertise for critical and regulated environments
Our technicians and service partners are trained over several years to operate in the most demanding industrial environments and hold all required certifications, including:
- Electrical and mechanical certifications
- ISO 9001 quality standards
- Specialized certifications: HUET / BOSIET, OPITO, ATEX
We safely operate in marine and offshore installations, data centers, nuclear power plants, and hazardous areas, in full compliance with site-specific regulations.
Nidec Power Services global offering
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Installation, Maintenance and RepairA complete, OEM-driven service offering
Choosing the right service partner is critical for the reliability and availability of your installations. As the original manufacturer, Nidec Power brings unmatched OEM expertise, engineering knowledge and certified processes to every maintenance operation.
Nidec Power provides OEM service solutions across the full lifecycle of your industrial alternator—from field intervention to advanced workshop refurbishment, including preventive maintenance, emergency repairs, and complete overhauls. -
Spare PartsKeep your power systems running with genuine Nidec Power spare parts.
We supply and deliver OEM-certified components for Leroy-Somer™ and Kato Engineering™ alternators, designed to ensure reliability, safety, and long service life even in the most demanding applications. -
Service NetworkBenefit from fast and reliable global support through our network of service centers and specialized workshops.
This organization allows us to rapidly mobilize field technicians and access OEM documentation anywhere in the world, ensuring efficient planned maintenance and robust emergency response. -
Workshop and remanufacturingExtend the life of your alternator with our cost-effective repair and remanufacturing services.
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CARE2GEN Mobile WorkshopPerform critical operations directly on-site with CARE2GEN, our professional mobile workshop.
This containerized solution enables complete generator overhauls and repairs at your location, significantly reducing downtime, logistics constraints, and operational disruptions. -
GENDO - Serial number searchGet direct access to key alternator data from any device. Simply scan the QR code on the nameplate to instantly retrieve manuals, certificates, and maintenance history via our mobile-optimized portal, requiring no app installation and working even in poor connection conditions.
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Houma Armature WorksOur engineering and production teams work in close collaboration to offer you the highest level of expertise. Each alternator is repaired and tested using the same procedures and on the same test benches as new machines. Once the work is complete, we send you a detailed report including our recommendations for extending the life of your installations.
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Storage ServicesWhether you need short-term or long-term storage solutions, our storage facilities are designed to accommodate your needs. When you entrust your equipment to us, you can have peace of mind knowing that it will be protected and ready for use whenever you require it.
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Video tutorialsMaster your equipment with our expert video tutorials. Explore our practical guides on upgrading digital regulators, alternator sizing, and protection standards to enhance your technical skills and ensure the safety and efficiency of your installations.

