SHIP REPAIR

Ship repair in St. Petersburg: main areas and stages of work
Ship repair is a set of measures aimed at maintaining the technical condition of a vessel, restoring its operational characteristics, and ensuring safe navigation. It includes technical maintenance, equipment modernization, troubleshooting, and preventive maintenance.
Our company specializes in the following areas of ship repair:
•   ship welding,
•   improving the ice class of a ship,
•   rewinding electric motors.

Main stages of ship welding
1. Diagnostics
Before starting welding work, a thorough diagnosis is carried out, using ultrasonic testing if necessary. This allows hidden damage to be identified and the scope of work required to be determined. If necessary, the underwater part of the vessel is inspected by divers or an underwater drone.
2. Planning
Based on the results of the diagnostics, a detailed repair plan is drawn up, including a list of works, deadlines, and necessary materials. Consultations are held with representatives of the classification society to ensure compliance with regulatory requirements.
3. Preparation and execution of works
Materials and tools are purchased, highly qualified specialists are engaged, and readiness for repair work is ensured. If necessary, underwater repair work is carried out.
4. Quality control
After the repair is completed, tests and checks are carried out. The results of the work are submitted to the classification society to confirm the vessel's readiness for operation.

Modern technologies in ship repair
The use of modern technologies and special tools significantly improves the quality and efficiency of repairs. They allow work to be carried out in hard-to-reach places and in confined spaces, ensuring high-quality cleaning and welding.

Rewinding of the electric motor rotor
Rotor rewinding is the process of restoring the electric motor winding by replacing the old winding with a new one. This procedure is necessary in case of insulation damage caused by overheating, short circuit, or mechanical damage. The quality of the rewinding directly affects the service life and efficiency of the motor.

Stages of rotor rewinding

Disassembly
Disassembly of the motor, removal of the old winding, and removal of insulation.

Preparation of coils
Manufacture of new coils from copper wire of the appropriate cross-section with heat-resistant enamel insulation.

Winding

Replacement of worn bearings and seals.
Laying the coils in the rotor core slots in accordance with the connection diagram for the specific electric motor model.

Testing
Testing the insulation, checking the resistance and quality of the wire placement to confirm that the rotor is ready for operation.
The rewinding is performed by experienced specialists using the necessary tools, as unskilled work can lead to equipment failure, additional costs, and emergencies.

Thus, timely diagnosis of the condition of electric motors and high-quality rotor rewinding can significantly extend their service life, ensure the reliability of the equipment, and minimize maintenance costs, as well as completely restore a burnt-out electric motor to its original condition, which is especially important if existing analogues are not suitable in terms of dimensions, and the electric motor that has reached the end of its service life is no longer manufactured, was for special purposes and was manufactured individually, or a new motor cannot be delivered within a short time frame.

A complete repair can be carried out by our specialists within 24 hours.

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