For Engie-Tractebel as Transformer expert


2023/05 - now in Belgium / Bйnin This project contains for me the purchase of one Power transformer and all documents are to be reviewed Laterthere will be the Witnessing & reporting of the transformer FAT


2021/08 - now in Belgium / Cameroun for end customer SONATREL, owner engineer For the update & reinforcement of the Cameroun HV grid a number of substations are to be extended or newly designed and build. The project is divided in to 7 contracts for different regions; Some contain only lines, some contain also power transformers & auxiliary transformers. Tractebel is owner engineer and is charged with the verification of all designs and specifications for SONATREL, the Cameroun grid operator. For the verification of the design, over 200 transformer related documents have been inspected and commented to verify the contractors. FAT witnessing & reporting of all the 90 to 225kV power transformers.

RED Project

2020/01-2020/01 in Finland Information under signed non-disclosure agreement Transformer FAT whitnessing engineer & reporting the FAT.

NKT-NDB project

2019/06-2019/07 in China for end customer Matelec The design, supply and erection of the 225/90kV lines Nouakchott and Nouadhibou in Mauritania and the associated substations Transformer FAT whitnessing engineer & reporting the FAT.

Transformer expert for the Transco CLSG project

From 2018-09-01 to present. Tractebel is awarded owner engineer for the Transco CLSG project where a 225kV grid is designed & built to interconnect the Afrikan countries of Ivory-coast, Liberia, Sierra-Leone & Guinea. The project involves the extension or construction of 12 substations and includes 16 power transformers 225kV/25-70MVA, 6 SVC/MSC transformers 225kV/25-35MVA and 6 reactors 225kV/5-25MVAR. As a transformer expert, all transformer related documents are to be reviewed & commented, verification of the design and the drawings, witnessing of the FAT an probably the SAT.

For Indaver as Transformer expert

Hooge maai - 36kV Transformer

2023/04 - now in Belgium - Antwerp Indaver wants to convert the 15kV to a 36kV incoming supply for the whole plant and needs to buy two 36kV 22MVA transformers. Therefore assistance is needed for the spec writing and the technical evaluation of the quotations Transformer expert: Writing the specification, creating the extended spec sheet, evaluation of the received offers, consulancy on the purchase procedure, supply and installation.

For Heylen Warehouses as Transformer expert

Grobbendonk PV-park Transformer explosion

2022/08 - now in Belgium - Grobbendonk The roof of the Grobbendonk Warehouse is entirely covered with PV panels that are connected via inverters to the normal supply transformers. These supply transformers are installed in a small HV-cabin inside the warehouse without ventilation and with a defective protection. This lead to two transformer explosions in summer 2022. Consulting on transformer explosion in order to find the causes and define the corrective actions to prevent this in the future. Follow-up and guiding the re-energising of the PV-installation. Final evaluation of all corrective measures.

For Otary as Transformer expert

SeaMade Spare Transformer

2022/05 - now in Belgium / Croatia For the SeaMade offshore substation, a spare transformer is required. Transformer expert : Witnessing & reporting the pre-tanking inspection, Witnessing & reporting of the transformer FAT of 1 unit 260MVA ONAN - 225/33/33kV Consulting on all transformer technical questions & aspects.

For SWECO as Senior Electrical engineer


2022/10 - 2023/05 in Belgium - Antwerp for end customer Indaver The Plastics 2Chemicals is an Indaver recycling project where plastics are converted into high quality chemical base components. For this project a new terrain is used to create the new factory in 12 Area's. Expert Earthing & Lightning protection: Design of an earthing and lightning protection system for the new P2C site. Modifying the Hommema design to an interconnected earthing. Connecting the earthing design to the lightning protection design. Ordering & evaluation the Hommema risk analysis of the LPS.

MOG2 - Princess Elisabeth Energy Island

2022/06 - now in Belgium for end customer ELIA To be able to connect both DC cables from Danmark and England to the Belgian AC grid, an offshore energy island is designed containing two DC converters and an AC substation. The island must also contain a 50kA earthing grid to ensure people's safety in case of an electrical fault. Expert Earthing & Lightning protection : Calculation of the earth resistance, ground potential rise, touch and step Voltages. Consulting on earthing of equipment and structures. Design of an earthing system for the energy island as a Hybrid earthing by 3 effective earthing paths: 1) the intended earth eletrode 2) J-tubes in direct contact with seawater 3) for a lesser part the 23 giant concrete blocks that form the walls of the energy island that are indirectly connected to the earth elektrode. Consulting on all equipotential connections.


2021/05 - 2023/05 in Belgium - Brussels for end customer STIB-MIVB An existing tram-line north-south in Brussels will be converted to a metro-line. The northern part from GDN to Bordet is granted to SWECO as owner engineer to prepare the specifications for future contractors. Lot 7 is the electrical power supply part starting from the 11kV feeders up to & including the transformers, the 400V main distribution boards and the 900V DC track power supply system & earthing system. Lead Electrical Engineer Lot7 - Energy: Writing high-level electrical design documents as a first contractor specification. Design of the metro stations power supply 11kV & main 400V distribution boards. Design of the 900V DC metro track supply Earthing design for all metro stations and tunnel equipment in order to avoid stray current influences. Dimensioning all AC & DC electrical equipment’s. Defining EMC rules for the project

Formosa 2

2021/03 - 2021/06 in Belgium / Taiwan for end customer Jan De Nul Jan De Nul has produced many high steel structures for the installation of wind generators at sea. These structures attract lightning and the electrocution risc must be limited by a simple temporary lightning protection system Expert Earthing & Lightning protection : Studying the site conditions & produced structures. Providing a simple method to ensure safety of workers in case of a lightning strike. Design of a simple lightning protection system. Earthing design for produced metal offshore structures.

For Pulsar-Power as Transformer expert

SWAN - Zonnepark A9 Haarlemmermeer

2023/07 - now in Belgium / The Netherlands For a solar production plant in the Netherlands, a power transformer 50/20kV 70MVA is needed and an expert opinion is also required to guide the purchase: Consulting on transformer specification and contractual clauses related to the transformer supply, transport, quality, performance and so on. Evaluation of the received offers

Hцganдs PV-park Transformer tripping

2022/07 - 2022/08 in Belgium - Ath Two step-up transformers in a HV cabin provide renewable energy from the inverters of a solar park to the Hцganдs production site. Both step-up transformers spill oil by overpressure and one trips on pressure during high load conditions. Transformer expert : Consulting on transformer tripping causes & corrective actions after a site visit. Check of the installation on-site. Investigating tripping & oil release issues. Providing recommendations & corrective actions. Correction on the report made by Pulsar-Power.

For Siemens Smart Infrastructure as HV/MV expert

Product manager MV Systems

2020/02-2021/09 in BELGIUM Product manager for the Medium Voltage Switchgear: Primary switchgear NXAir, NXPlus, NXPlus C, NXPlus C Wind, 8DA/DB and Secondary switchgear: 8DJH, 8DJH compact, 8DJH36, Simosec. Preparation of Synergrid homologation requirements for existing MV equipment and preparing the homologation for new equipment. Providing technical support for the sales team regarding the Synergrid adaptations for the new equipment. Interfacing between the sales team and Synergrid or between sales team and the factory in Erlangen, Frankfurt or Gebse (Turkey). Studying the Synergrid requirements for homomlogation. Getting to know the MV switchgear products from Siemens. Answering Synergrid related questions from the sales teams. Reorganising the switchgear sockles (bases). Pick-up the thread of homologation activities where my precesser stopped.

For Jacops-Deckx as Oosterweel Lot 4 Tender engineer

From 2019-04-01 to 2019-08.

Electrical calculation for the Oosterweel Lot 4 tender VTTI

Lot 4 of the Oosterweel project is different since it contains only the traffic related technical & tunnel equipment (VTTI) of all tunnels of the Oosterweel project Lot 2, 3 and 5. The project is in respect to electrical installation much larger and much more complex since now there are two 15kV differential grid connections at 2 service buildings; one at "Dienstgebouw Linkeroever" for the tunnel under the river Schelde TSCT and one at "HS-post Schijnpoort" for all other tunnels. The internal 15kV from Dienstgebouw Linkeroever is in closed loop distributed to Dienstgebouw Rechteroever; about 2km further. The internal 15kV from HS-post Schijnpoort is in closed loop distributed to 6 service buildings with a 17.33km long cable loop. The THV Jacops-Deckx took the elektromechanical part under the Besix/Van den Bergh group in the joined venture Mobiellus.

For Jacops-Deckx as Lead Electrical Engineer

From 2018-03-25 to 2019-03-31.

Electrical design MV & main LV distribution for the Oosterweel Lot 1 Project

To solve the congestion on the Antwerp ring, the Oosterweel project has been started and after long discussions, the plans arrive at their final stage. The project has been prepared by BAM using systems engineering and the preparation was done in the form of a prй-design. The contract part Lot 1 for the Oosterweel verbinding was awarded to a joint venture with Stadsbader, Artes-Roegiers, CIT-Blaton and Mobilis called Rinkoniкn. The THV Jacops-Deckx took the elektromechanical part under the Stadsbader company. This part of the Oosterweel verbinding consists of the renewing of ±10km of motorway at Antwerp's left-shore and redesigning the 3 crossings. My part is to renew the energy supply and ensure that the Dynamic Traffic Management systems stay live in case of a power interruption. Visit the Oosterweel old/new project overview by clicking this link

For CG-Power systems as Transformer expert in controls & protection

From 2017-04-01 to 2018-06-20 as a free-lance TrafoConsult Consultant. From 2016-09-01 to 2017-03-31 as AKKA-technologies Consultant.

Training the new control & protection designers

Two new engineers have been added to the department and to avoid a loss in capacity I was consulted to provide this training. The training was partly on-the-job and partly theoretical concerning transformer Control & Protection topics as:

Restructuring my former department

After my deparure as head of the C&P department, I have not really been replaced so nobody was updating procedures, keeping track of the department planning and taking part in meetings concerning all design departments. So a lot of work needed to be done to get the procedures back on the level that they represent the actual working methods. To obtain near identical designs from different designers, the design rules needed to be updated and re-implemented.

Adding design capacity to the Control & Protection department

After an in-depth analysis of the running orders and the finished work on the designs I gained an overview of the backlog in the department and the required capacity to avoid impact on the production. If the 2 new engineers were fully trained, the capacity of the department was sufficient but the backlog must be eliminated. The easyest solution was to do some difficult designs myself and after one year, the backlog was gone.

For CG-Power systems as AKKA-Matis Consultant

From 2016-09-01 to 2017-03-31. This mission was identical to the following mission only me being an employee of Akka, willing to switch over to a free-lance consultant. I am gratefull that Akka was supportive in this transition without substantial difference for the customer CG-power systems.

For Tractebel as AKKA-Matis Consultant

From 2014-04-01 to 2016-08-31.

FAT of a cast-resin seismic prototype for Tihange NPP

The existing seismic cast-resin 1000kVA transformers need to be replaced. Since this type of transformer is used as a standard 6kV/400V transformer for auxiliary power supply, the transformer undergoing the FAT test is the first of the series and will be type tested for all required tests. I only whitnessed the routine tests:

As contract owner for the replacement of the 200MVA 18/416/√3kV single phase GSU transformers for the Tihange NPP

In relation to the Long-Term-Operation of the Tihange 1 NPP the shell-type GSU transformers who have served 40 years need to be replaced. The preparation work had already been performed by an employee of Tractebel i.e. the writing of the specifications, the quotation phase and I arrived after the order had been placed.

So for the customer "Elektrabel" the main tasks were the project follow-up from production to energisation. To avoid slippage of the planning, a few factory visits were organised to the transformer factory but also to the tank factory to inspect weldings & painting procedures since previous experiance with corrosion & leaks

Technical meetings have been held to verify the planning and technical questions were raised to ensure the quality of the transformers is conveniant

A total of 4 transformers have been verified during production and at FAT. Also the site installation of two transformers at Tihange have been followed closely, the oil filling and SAT.

As contract owner for a spare 36MVA 150/6/6kV auxiliary transformer for Tihange 1

The 150/6/6kV auxiliary transformer from ACEC is 40 years old but still in very good shape. This is because this transformer is only loaded during a plant outage when the GSU transformers are deenergised and the 18/6/6 kV transformer hence receives no power to supplu the auxiliaries. Strategically it is better to have a spare transformer so Elektrabel decided to order one. A replacement transformer is allways a challenge since it must fit the existing dimension requirements and the electrical requirements. My responsability as contract owner was to
  • write the technical specification for this replacement transformer,
  • to prepare the contract together with the buyer,
  • to call for tenders,
  • to evaluate all the received tenders,
  • to discuss technical issues with the potential suppliers

    As transformer expert assistance for offshore platform transformers

    Offshore substation to connect 66 windmills of 6MW to the 150kV Tennet Grid. The substation comprises two Generator Step Up transformers with proposed rating 240/320MVA 33/33/150kV; each transmitting the power of 33 windmills to the DolWin Alpha converter station. The OSS also comprises reactors, auxiliary transformers & earthing transformers.

    writing the specifications for the 2 GSU power transformers 220MVA/300MVA 33/33/155kV. Writing specifications for the 33kV 2.5MVAR reactors. writing specifications for the auxiliary & earthing transformers.

    Optimisation of the required transformer power in function of the measured wind power, the Wind Turbine Generators specifications, the grid requirements and the required transformer lifetime. Taking into account that it must be possible for one transformer to provide at leat 66% maximum platform power output.

    Technical evaluation of the transformer offers.

    Technical negociations with the selected possible suppliers

    For Siemens as AKKA Consultant

    service department support - Transformer expert

    The Siemens Belgium power division developped new services such-as transformer monitoring. My responsabilities were to prepare and organise transformer expert training and assist in customer meetings as monitoring expert.

    Design of the control & protection of the Setif-Ouest 220/60kV substation

    The Setif-Ouest project involved large pump stations to supply water to mayor city's. These remote pump stations are supplied by first the 220kV grid and further from the 60kV grid. The project involved 3 substations; 1 220/60kV substation and 2 60/

    For Imtech as AKKA Consultant

    SPARTACUS Lead electrical engineer tendering

    The Spartacus project was a international DBFM contract for "De Lijn" to Design-Build-Finance & Maintain for 25 years a high speed tram line between Hasselt and Maastricht

    My responsabilities for Imtech included:

    For this tender, Imtech worked together with:

    BRABO Lead electrical engineer tendering

    The Spartacus project was a DBFM contract for "De Lijn" with 7 sub-projects to Design-Build-Finance & Maintain for 25 years an Antwerp tram network in 5 Antwerp zones.

    My responsabilities for Imtech included: