“Official acquirer of CG Holdings Services and Pauwels Trafo Services”

Installation, relocation, commissioning of power transformers - NovAcec Services.

SERVICES

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Power & Distribution transformers

On Load Tap Changers

Maintenance, inspection, repair of on-load-tap-changers - NovAcec Services.
Installation, relocation, commissioning of power transformers - NovAcec Services.
Installation, relocation, commissioning of power transformers - NovAcec Services.
NovAcec Services oil analysis.

Making full use of our  comprehensive services will enable you to reap a spectrum of tangible benefits.

  • 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.

  • Reduce cost

    • Optimize each system and component for maximum profitability.
    • Save costs by reducing your stock of spares.
    • Plan investments more cost-effectively.

  • Increase productivity

    • Ensure maximum energy output.
    • Meet your business goals.
    • Safeguard your investment.

  • Improve safety

    • Comply with environmental, health and safety regulations.
    • Ensure safety of plant and personnel.

  • Minimize environmental impact

    • Reduce environmental emissions.
    • Lower environmental impact in a sustainable way.

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,..)
  • …

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.