Maintenance Partners offers a full maintenance solution for oil filled and dry transformers. We offer services for distribution and power transformers of all brands, including:
| ACEC | BBC | Helmke | Siemens |
| AEG | Brush | Holec | Smit |
| Alstom | France Transfo | I.E.O. | Stromberg |
| ASEA | G.E.C. | Pauwels / CG | Trafo Union |
Assessment & Maintenance Plan
Transformers are low maintenance, but not free of maintenance. To determine the maintenance need of your transformer(s), Maintenance Partners offers an assessment that consists of visual inspections, oil sampling, thermography and electrical measurements.
The assessment is the foundation for a maintenance plan in which the condition and priority of each transformer are decisive for the maintenance frequency and needs.
Preventive Maintenance
For a safe and reliable operation of transformers, preventive maintenance is a must. This detects problems at an early stage and can prevent further deterioration. Preventive maintenance includes the following tests:
- Oil sampling + analysis (Oil quality, PCB, furan detection, moist level, …)
- Electrical measurements (Insulation resistance, Winding resistance, Transformer Turn Ratios, SFRA-Sweep Frequency Response Analysis, IDAX- Tgδ, …)
In addition, accessories and protections are checked (Detection Gas Pressure Temperature, Buchholz, Thermometer & Fans) and silica gel is replaced.
Maintenance & Repairs Onsite
Besides preventive maintenance, we also execute repairs. The following services are offered onsite:
- Dehumidifying, degassing and filtering of oil using steamliner (up to 7.000 l/h)
- Refilling or replacing oil
- Replacing or repairing of accessories
- Renewing of gaskets (all types)
- Cleaning of contacts and adjusting torque
- Replacing of bushings
- Repairing resin / removing corona
- Maintenance of tank and conservator: corrosion removal, welding of leaks and repainting
- SAT (Site Acceptance Test) + report
Maintenance & Repairs in workshop
More comprehensive repairs that cannot be executed onsite are performed in our workshops:
- Full electrical test of transformer
- Full revision (refurbishment)
- Repair of hair cracks and corona traces on cast resin transformers
- Repair of HV/LV windings
- Repair/renewal of damaged connections
- Re-clamping of the winding
- Drying of active part
- Changing/repairing of tap changers and insulators
- Full blasting and painting of reservoir
- FAT (Factory Acceptance Test) + report
Engineered Services – Special Projects
Our services on transformers are not limited to maintenance, we also execute Special Projects, such as:
- Modifications and Upgrades, (eg. cooling improvement)
- Relocations
- Installation and Commissioning
Testing
Maintenance Partners uses modern testing equipment for complete tests according to the highest standards:
- Electrical measurements
- Insulation Resistance
- Winding Resistance
- Transformer Ratios
- Tgδ
- SFRA (Sweep Frequency Response Analysis)
- Thermography
- Oil analyses
- Site Acceptance Test after intervention
- Factory Acceptance Test after repair
Contact us
Are you interested in an assesment of your transformers or do you want to know more about maintenance of transformers? Call us at +32(0)3541 71 40 or send us a message.