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.
2020/01-2020/01 in Finland
Information under signed non-disclosure agreement
Transformer FAT whitnessing engineer & reporting the FAT.
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
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:
OLTC motor drive & Automatic Voltage Regulation
Control cabinets & control circuits
Transformer thermal models & ageing calculations
Fiber-optic hot-spot themperature measurement
Transformer protective devices
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:
Visual inspection & dimensions check
winding insulation test
winding capasitance and power factor test
applied voltage test and partial discharge measurement
No load losses and measurement of the magnetisation current
Load loss measurement and the short-circuit voltage
Check of the Pt100 sensors and the control cabinet including the protection relay
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:
the design of the required 11kV traction station (substations for traction) including tram power supply, auxiliary supply & back-up auxiliary supply
the tram 900V DC power supply from transformers to rectifiers to feeders, catenary system & return circuit
the cable calculations for trackside auxiliary supply for halts, artwork & crossings
For this tender, Imtech worked together with:
Arcadis for the bridges & artwork,
Denys for the tramways & halts.
Democo for the tram & busses stalling & maintenance station
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.
subproject 1 is the reconstruction of the "leien" including the tramway South & North towards "eilandje" and Ekeren
subproject 2 is the reconstruction of the Roseveldplaats where the new branch north is made and the beginning of Italielei where a historic part of the former Antwerp city walls would be uncovered, lighted and glass-covered and the tramways pass over them.
subproject 3 is the renewal of the underground station Opera to connect to the Livan Project & to provide an exit to aboveground on Frankrijklei. Also the present huge underground parkings must be finished and put into operation.
Since at the location of the traction station, a huge cylindrical light opening will be made, the old traction station must be removed and a new traction station to be made without interruption of the tram exploitation!
subproject 4 is the connection to the existing tramway in Sint-Paulusstraat direction north over the "kaaien" towards the u-turn loop at Dinantstraat and further over Londenbrug and via Kattedijkdok-Oostkaai to the u-turn loop of mexicostraat
subproject 5 is the renovation & renewal of the two antique bridges "Londenbrug" & "Mexicobruggen" where now the tram must be able to pass and the bridge must remain functional this means can open for passing ships.
subproject 6 is the extension north from the existing trams & busses stalling & maintenance place at Noorderlaan towards Ekeren "De Mieren3. This project had later been reduced so that the tram only went up to the exit ekeren at the noorderlaan.
subproject 7 is the design of the 7(6) required substations: Opera new (replacing the old SS), Underground parking, Staatsburgbrug, Artesis, Tsjalkstraat, Luchtbal & De Mieren (Ekeren but was cancelled)
My responsabilities for Imtech included:
offer calculation of the design of the 7 required 15kV traction station including:
2 tram traction transformers per traction station,
the 2 x 6 pulse as a semi 12-pulse rectifier,
tram traction transformer,
auxiliary supply & back-up auxiliary supply
the tram 600V DC power supply, possible to switch over to the newer 900V DC power supply from transformers to rectifiers to feeders, catenary system & return circuit
dividing the Antwerp track's in to optimised sections in respect to the distance to the traction station
the cable calculations for trackside auxiliary supply for halts, street lighting, artwork & crossings
For this tender, Imtech worked together with:
Denys for the civil works, construction works, tramways & halts.
Stadsbader for the civil works & construction works
Eurostation for the LV installations
Technum for the simulation calculations of the voltage drop
LIVAN project lead electrical engineer
The LIVAN project was a DBFM contract for "De Lijn" with 3 sub-projects to Design-Build-Finance & Maintain for 25 years an Antwerp tram connection from the centre "Astrid" to the Wommelgem P&R.
The sub projects were:
The design of a new aboveground tram line to the Wommelgem park & ride using partly an existing track and partly a new track with an aboveground traction station at Ruggeveldlaan.
The design of an underground tram line in the existing 40y old tunnels from "Astrid" to 2.6km eastward outside the ring where the tram surfaces.
This project contained the 5 underground halts Astrid, Carnot, Drink, Zegel and Collegelaan.
Apart from Astrid, 2 new traction stations and 4 new substations had to be designed.
The take-over of the old Astrid station with all it's equipment and prepare it for the new line at -1.
My responsability was lead electrical engineer which means a.o.:
Responsable for the 15kV incomming supply at 3 locations: Carnot, Zegel and Ruggeveldlaan.
Responsable for the design of the 15 kV installation including 11 transformers, 44 MV switchboards, 3x12km MV interconnection cables, 4 interlock cabinets, 7 PLC control cabinets
Responsible for the design of the main 400V cable from the transformers and the 5 main LV distribution boards.
Responsible for the earthing of the electrical installations and the equipotential bonding in respect to the avoidance of stray currents.
Responsable for the coverage of all customer demands in the electrical equipments
Responsible to cover all interfaces with other design departments s.a. traction supply, LV distribution boards, Automation & SCADA, Smoke extraction & HVAC,...
As CG power systems employee - Knowledge manager
Take care that everybody is trained for the tasks he/she performs
My responsability's were:
investigating the most urgent training needs
structuring the already available training documentation
Train the trainer
Organising Technical Trainings
Provoding new training material
As CG power systems employee - Head of the control & protection team in the power transformer design department
For Pauwels Trafo / CG Power systems Belgium n.v.
As power transformer Control & protection designer
- rendering the customer specifications into a prй design where:
- all the control & protection materials are defined :(bushings, CT's, Auxiliaries, Surge-Arresters, OLTC motor drive, Monitoring equipment
- instructions are noted for the cooling control panel design
- instructions are noted for the transformer cabeling
Penchard Inrush issue
Avelgem & Zandvliet Inrush issue
Besanзon & Hericourt EMC issues
Estonia Harku SS redundant supply flip-flop
As CG power systems employee - control & protection engineer