Increase asset reliability
• Extend the life of your systems and components.
• Avoid unplanned stops and downtime.
• Minimize equipment breakdowns.
• Prolong your transformer’s life expectancy.
• Optimize your transformer’s performance.
SERVICES
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Power & Distribution transformers
On Load Tap Changers
Follow a manual added link
Installation, relocation and commissioning
Follow a manual added link
Maintenance, inspection and repair
Follow a manual added link
Oil-analysis
Follow a manual added link
Life-time extension
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Oil-Drying
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Training
Follow a manual added link
Spare-Parts
Making full use of our comprehensive services will enable you to reap a spectrum of tangible benefits.
Installation, relocation and commissioning
- New installation of transformers of all types.
- Relocation of existing transformers.
- Fast and safe transportation of transformers (crane and jack-and-slide services).
- Testing and commissioning by specially qualified technicians.
Maintenance, inspection and repair
On site
- Accessories replacement (bushings, conservator, cooling systems)
- Oil treatment, replacement, disposal of waste oil and oil samples
- Gasket replacement, leak repair
- Cleaning and painting
- On- & off-circuit tap changers maintenance, repair, overhaul and replacement
- Modification or installation of new cable box
- Replacement of motor drive units
- Full retrofit of existing transformers allowing life time extension (replacement of bushings, cable box, cooling systems,..)
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Repairshop
State of the art dedicated workshop for expertise, maintenance and repairs that can not be performed on site, on transformers and OLTC’s, all brands and types (Shell, Core types / DT, PT transformers):
- Lifting capacity 175 ton
- Floor space 3000 m2
- Voltage testing capabilities
- Repairs up to 400 kV
- …
On-load-tap-changers
Our NovAcec Services SA has a long industrial history in on-load tap changer technology and manufacturing that itinherited from ACEC, a manufacturer of on-load tap changers since 1930.
NovAcec Services SA hosts a team of tap changer specialists, experts on-load tap changers :
- Overhaul of complete tap changers, all brands
- End to end revamping: field dismantling, repair and revamping in workshop, on-site re installation
- Reverse engineering of any type of tap changers
- Design, manufacturing and sourcing of any tap changer parts and components
- Field inspection and expertise
- Urgent corrective maintenance
- Preventive maintenance
- Supply of spare parts
Life time extention
Some examples….
- OLTC’s of the RFR4 type were showing repeating faults which needed new design spares to extend their life time.
- Retrofit of 400 kV transformers (active part inspection and retightening, new HV/MV/LV bushings and cooling system, new cables, new gaskets,…).
- ….
Oil-analysis
Brand new equipment – State-of the-art techniques – 30 years experienced engineers – Full service from sampling to evaluation and advice.
Type of analysis:
- Dissolved Gas Analysis (DGA)
- Breakdown voltage
- Dielectric Dissipation Factor
- Specific resistance
- Acidity
- Moisture content
- Color
Drying of transformers
NovAcec Services SA is the exclusive distributor for ARS Altmann equipment in Belgium, The Netherlands, Luxembourg, France and Ireland.
- Offering several machines and principles to tackle moisture in your transformer
- Transformer can remain in service
- Ensuring a good drying of the insulation
- Sale and rental of equipment
Training
NovAcec Services SA also provides training courses for customers. This training can help you to carry out small interventions on your own.
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DISTRIBUTION TRANSFORMERS
Range: up to 5 MVA – High Voltage 36 kV
Standards and specifications – Parameters – Basic transformer components – Transformer devices – Operating costs – Electrical testing – Special versions
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SMALL POWER TRANSFORMERS
Range: up to 30 MVA – High Voltage 170 kV
The “active part” of the transformer – Oil analyses – Electrical tests – On Load Tap Changers – Transformer accessories and protection devices – Transformer monitoring – Maintenance of transformers and spare parts
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POWER TRANSFORMERS
Range: up to 750 MVA – High Voltage 400 kV
The “active part” of the transformer – “Shell” and “Core” type comparison – Oil analyses – Electrical tests – On Load Tap Changers – Transformer accessories and protection devices – Transformer monitoring – Maintenance of transformers and spare parts
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TRANSFORMER ACCESSORIES AND PROTECTION DEVICES
Bushings – Thermostats, thermometers and winding temperature indicators – Oil levels – Buchholz relay – Pressure relief valves – Current transformers – Fans and pumps – On Load tap Changers – Motor drive units
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Spare-parts
NovAcec Services SA stocks a comprehensive range of accessories and spare parts for all types of T&D equipment at various strategic locations worldwide. We can be provided in a timely and cost-effective manner. Thanks to this large inventory of spare parts, repairs can be carried out quickly with minimal disruption to operations.
We also offer a service to customers for the creation and management of critical spare parts lists.
