// ELEKTROPROMREMONT / ABOUT COMPANY
ABOUT COMPANY
// WHO WE ARE
Engineering solutions for electric machines of any complexity
Elektropromremont LLC specializes in the repair, modernization, and manufacturing of electric machines since 1998. We perform a full cycle of work for electric motors, generators, and industrial electrical equipment.
Our production capabilities cover the repair of electric machines with a capacity of up to 30+ MW, manufacturing of windings and spare parts, mechanical processing, balancing, high-voltage testing, and service work directly at the Customer's facilities.
The quality of our work is confirmed by ISO 9001:2015 certification (TÜV AUSTRIA), our own testing laboratory, and years of cooperation with enterprises in the energy, metallurgy, mining, and transport industries.
Turbogenerator stator rewinding
Rotor balancing
Electric motor testing
Asynchronous motor repairWe don't just repair electric machines — we restore critical equipment on which the continuous operation of industrial enterprises depends. Our goal is to minimize equipment downtime and ensure its reliable operation throughout its entire service life.
// PRODUCTION
Full production cycle for electric machine repair
Elektropromremont LLC's production facility provides a full cycle of repair, modernization, and manufacturing of AC and DC electric machines — from fault detection and engineering analysis to final high-voltage testing.
Our own production areas, modern process equipment, and a team of experienced specialists allow us to perform most operations without third-party contractors, ensuring quality control at every stage.
All work is performed at our own production facility — from initial fault detection to final testing. This approach ensures full quality control, shortens repair timelines, and guarantees that the equipment meets the Customer's technical requirements.
- 01Receiving, disassembly, and fault detection
Every electric machine undergoes complete disassembly, cleaning, and detailed fault detection. Our engineers determine the causes of malfunction, assess the technical condition of components, and, if necessary, restore design documentation and drawings.
- 02Winding removal and core inspection
Old windings are removed, followed by inspection of the stator and rotor active steel. Interlaminar short-circuit testing, magnetic core geometry checks, and an assessment of its suitability for further operation are carried out.
- 03Manufacturing of components
Our own production manufactures stator sections, rotor and pole coils, commutators, slip rings, and other components. This shortens repair timelines and ensures full quality control.
- 04Winding restoration
New windings are laid, insulated, and formed into sections, followed by impregnation and thermal polymerization. Modern insulation materials of heat-resistance classes F and H are used, ensuring durability and reliable operation.
- 05Mechanical restoration
Shafts, end shields, housings, seating surfaces, threaded and reference surfaces are repaired or remanufactured. Modern machining, surfacing, and welding methods are used to restore the geometric parameters of parts.
- 06Dynamic balancing
All rotors, armatures, and other rotating components undergo mandatory dynamic balancing. This minimizes vibration, reduces bearing load, and ensures stable equipment operation.
- 07Electric machine assembly
After all repair operations are complete, final assembly, component alignment, and installation accuracy checks are performed. Special attention is paid to assembly precision and compliance with factory technical requirements.
- 08Testing and quality control
Every repaired electric machine undergoes a complex of electrical and mechanical tests. Insulation, vibration, load performance, and other parameters are checked, after which the Customer receives equipment fully ready for operation.
// SOLUTIONS FOR COMPLEX REPAIRS
- Armatures weighing up to 50 tons
Overhaul, restoration of windings, commutators, and mechanical components of large-size armatures.
- Windings from transposed conductor
Manufacturing of sections and coils for high-power electric machines using transposed conductors.
- Reverse engineering of electric machines
Restoration of drawings, technical documentation, and manufacturing of components based on actual equipment dimensions.
Ready to bring your motor back to life?
// TEST STATION
Our own test station
After repair, every electric machine undergoes a complex of electrical, mechanical, and functional tests at our own test station. This confirms that the equipment meets technical requirements, ensures its reliable operation, and minimizes risks during further use.
The test station is equipped with modern measuring equipment, certified control methods, and normative and technical documentation. Based on the test results, the Customer receives a full set of protocols confirming the quality of the completed repair.
// ARMATURE TESTING
// THERMAL IMAGING CONTROL// THE STATION PERFORMS
Determining the technical condition of the electric machine, the causes of malfunction, and the scope of required repair.
Intermediate electrical and mechanical testing at all critical stages of the work.
A set of checks after repair completion that confirms the equipment meets technical requirements.
Electrical measurements, vibration diagnostics, thermal imaging control, and assessment of equipment condition.
The results of measurements and tests, along with conclusions on the compliance of the repaired or diagnosed electric machine with regulatory documentation, are documented in protocols certified by the signature of the QC department head and the seal of the test station.
// TESTING OF ELECTRIC MACHINES
The test station is equipped with stationary and mobile measuring systems, enabling a full cycle of electrical, mechanical, and diagnostic testing at every stage of repair.
// REGULATORY BASE
The equipment is verified and certified by State Standard bodies; the station undergoes technical competence audits (certification prior to 01.01.2016).
// COIL TESTING
// POST-REPAIR HIGH-VOLTAGE TESTING
// STATOR HIGH-VOLTAGE TESTING
// ROTOR SHAFT DYE TESTING// CERTIFICATES
Quality confirmed by international and national standards
The quality of our repair work is confirmed by international ISO 9001:2015 and ISO 45001:2018 management system certification issued by TÜV AUSTRIA. The company's production processes comply with international requirements for quality management, occupational health, and work safety.
The company holds all necessary permits for performing high-risk work, repairing electric machines, conducting high-voltage testing, and carrying out work both at our own production facility and directly at the Customer's sites.
// OUR TEAM
A team that solves complex engineering challenges
People who deliver results are the main component of our company's success and prosperity. It counts more than 120 carefully selected and trained employees, for whom we create all the necessary conditions for professional and personal growth.
The company employs more than 120 engineers, technologists, designers, managers, and production specialists. Their practical experience allows us to carry out the full cycle of electric machine repair — from fault detection and documentation restoration to manufacturing components, assembly, and final testing.
We combine the experience of specialists with years of practice and the training of young professionals, passing technological knowledge on within the company. It is our team that ensures consistent quality of work and the successful delivery of complex projects for industry and energy.
Specialists with years of experience repairing large electric machines.
Engineers, technologists, and production work as one team.
Personal accountability for the quality of every stage of repair.
Complex repairs cannot be carried out without a strong team. It is the many years of experience of our engineers, technologists, designers, and production specialists that makes it possible to deliver projects requiring high precision, engineering expertise, and strict adherence to repair technology.
Behind every successfully completed repair are people who have worked with electric machines for decades. The practical experience of our engineers, technologists, winders, mechanics, and testers allows us to perform work of any complexity — from repairing small electric motors to restoring unique high-power machines.
We invest in staff development, modern equipment, and the transfer of production experience between generations of specialists. This is what ensures consistent quality of work, accountability for results, and the trust of our Customers over many years.
