De Jager - Electrical Engineer/Supervisor/Commissioning - Johannesburg, Gauteng, South Africa

Michaal De Jager

Johannesburg, Gauteng, South Africa


Electrical Engineer/Supervisor/Commissioning


I am an Electrical Engineer with experience in the Mining (especially Coal, and limited Chrome/Platinum/Gold/Manganese) and Ship building sectors. I was involved in the coal mining production environment, various measurement work, concept, pre-feasibility and feasibility studies, execution projects, and electrical commissioning work. Most of my experience was gained in South Africa, but about 10% of my experience was gained abroad in Kazakhstan, Singapore and the DRC in Africa. I have an exceptional hands-on approach, a set of good technical, analytical and implementation skills, and optimistic view. The ability to convey knowledge and gained experience to other people effectively is a strong point.

Work History

Electrical Engineer


From July 2011

Job Experience:
Project - Thabazimbi Fine Ore Beneficiation Plant Retrofit - Feasibility study
Client - ARM / Assmang
• Lead Electrical Engineer for the electrical design work including the relevant documentation, drawings, data sheets and Client specifications
• Compilation of the applicable electrical procurement packages
• Liaise and coordinate with client, project management and other discipline engineers

Project - Black Rock Expansion Project
Client - ARM / Assmang
• Package Engineer for several electrical procurement packages
• Liaise and coordinate with client, project management and other discipline engineers

Project - Mongbwalu Gold Mine, Democratic Republic of the Congo
Client - Ashanti Goldfields Kilo Sarl
• Design and early works
• Involved in and assistance to design of 11kV distribution networks and containerised substations, and various cable schedules and drawings
• Design of 690V motor control centre typical schematic diagrams and 690V single line diagrams
• Scope of work and specification documentation
• Visit to the site in the DRC to assist the Electrical Installation Contractor and to be the Electrical Representative for TWP on site

Project - Export water pipeline and pumpstation - Feasibility study
Client - Kumba Iron Ore
• Lead Electrical Engineer for the execution of the electrical portion of this feasibility study

Project - Proposed Ncondezi Coal Mine, Mozambique - Definite feasibility study
Client - Ncondezi Coal
• Electrical Engineer for the execution of the electrical portion of this definite feasibility study

Project - Rustenburg Base Metal Refinery MC-Plant
Client - Anglo American Platinum
• Facilitate the outstanding electrical work of a capacity expansion project that was done in the Magnetic Concentration Plant, in order to finalise this project

Project - Union Chrome at Swartklip Mine, Northam
• Function checking and hot commissioning of a Motor Control Centre and associated electrical equipment at the Chrome product train...

Electrical Commissioning Engineer

Converteam Ltd

November 2009 - May 2011

Description: Converteam is a major power conversion company in the world providing these type of services to customers in the marine and other markets worldwide. Converteam was bought by General Electric in 2011/12.
Period: November 2009 to May 2011 (1½ year)
Role: Electrical Commissioning Engineer (Contracting)
Rationale: Projects finished

Job Experience:
Project - Greatship Support Vessels and Global Pipe Laying Vessels
• Electrical commissioning engineer on the electrical power generation, distribution and drive systems on various ships in the Keppel Singmarine Shipyard, Singapore
• Hands-on work; such as pro-modifications on panels, function checking of feeder and generator panels, pre-commissioning checks on transformers and variable speed drives, and commissioning of these equipment on the ships
• Experience on secondary injection of overload relays (MiCom and Symap), and on RTDs
• Exposure to the Power Management System of multiple Generators on the ship
• Performed the role of Site Manager with all the relevant responsibilities involved
• Effective interaction with multi-disciplinary and multi-national teams
• Detailed experience in the electrical commissioning within marine environments

Assistant Engineer


August 2008 - June 2009

Mineral Projects (Pty) Ltd, Johannesburg, South Africa
Description: DRA offers consulting engineering services within the civil, mechanical and electrical disciplines to a wide variety of clients. The Head Office is in Sunninghill, with offices world wide in Canada, India, Australia, etc.
Period: August 2008 to June 2009 (11 months)
Role: Assistant Engineer
Rationale: Retrenchment as a result of personnel reduction; economical crisis (LIFO)

Job Experience:
Project - Chrome Dense Medium Separation Plant in Kazakhstan
• Electrical Site Supervisor for a chrome DMS-plant project in Kazakhstan. General contractor management, plant and instruments commissioning

Project - Khumani Iron Ore Mine and Plant near Kathu, South Africa
• Involved as an Assistant Instrument Engineer on the initial stages of this large project
• Prefeasibility study, i.e. the early phases of detail design, Scope of Work, etc.

Design Engineer

Netgroup SA (Pty) Ltd

October 2007 - February 2008

Sasolburg, South Africa
Description: Netgroup SA has offices throughout South Africa and offers services mainly in the field of Electrical Engineering Solutions and Projects to various clients. The Sasolburg office provides services mainly to Sasol in Sasolburg.
Period: October 2007 to February 2008 (5 months)
Role: Design Engineer (Contracting)
Rationale: Resigned because of emigration endeavours

Job Experience:
Project - Kloof Gold Mine and Sasol Synthetic Fuels
• General assistance to Project Leaders within various projects (Cable, Motor Control Centre and 11kV Switchgear schedules) and small scale design (Single line diagrams, Steel structural)
• Measurement and report of electrical parameters within the underground medium voltage distribution substation gold mine environment
• Assistance in primary/secondary injection on MV switchgear protection relays

Farming Partner

Kruidvanuit Farming

July 2002 - September 2007

(Pty) Ltd, Bothaville, South Africa
Description: Cultivation of crops like maize, wheat and sunflower
Period: July 2002 to September 2007 (5 years and 3 months)
Role: Farming Partner
Rationale: Resigned - Decided to return to professional career

Job Experience:
Project - All relevant tasks concerning crop cultivation
• All relevant tasks concerning crop cultivation, from preparation of the fields up to the harvesting of the crops
• General repair and service work to agricultural equipment
• Initiation and implementation of improved methods for the preparation of the fields, which saved significantly on input costs and which led to an increased yield
• Various electrical installations on the farm

Project Engineer

May 1997 - February 2002

1 month)
Promoted to Project Engineer

Sasol Mining

September 1994 - June 2002

Secunda, South Africa
Description: Sasol Mining (previously known as Sasol Coal) in Secunda, is the main supplier of coal to the Sasol Synfuels Factories (previously known as Sasol 2 and 3). They also export coal to local and overseas customers.
The Project and Technology Services Department's main function is the management of mostly engineering related projects within Sasol Mining. They also provide various types of services to the overall mining environment.
Period: September 1994 to June 2002 (7 years and 9 months)

Chief Foreman

September 1994 - April 1997

8 months)
Rationale: Resigned - Opportunity to try hand at farming

Job Experience:
• Measurements and investigations were typically done to:
➢ solve different types of problems
➢ improve methods or operational parameters
➢ verify design parameters and/or mathematical calculations
➢ assist with research and pioneering work
➢ A report was drafted for each of these tasks that were done
• Exposure to project management, to a lesser extent:
➢ Security systems Sasol Mining wide (to the value of ∼ZAR2,5million)
➢ Air conditioning systems at certain office blocks (to the value of ∼ZAR0,5million)
• From a measurement that was done on an overland conveyor system, it was found that the two supply 11/3,3kV identical power transformers (that was connected in parallel) were at different tap settings. A lot of electrical energy and money was wasted. An amount of ∼ZAR4000 per month was saved after rectification of this problem
• The sufficiency and safe operation of the 1000volt trailing (supply) cables of Continuous Miners through measurement and investigation
• Investigation into the underground telemetry system at the Twistdraai Central Mine
• Compiling of information registers for all of the surface ventilation fans of Sasol Mining, a first for the company (Receive special recognition)
• Dynamic T1-tension measurements on the overland conveyors from the Twistdraai Export Mines
• Strain measurements on a shuttle car body via strain gauging
• Investigation done into the potential upgrading of the overland conveyors from the Syferfontein Mine

• The 2,3km long overland conveyor at the Saldanha Iron Ore Export Terminal (Portnet) was able to convey only about 5500 ton/hour (in comparison to its original design of 8000 t/h). It resulted in Portnet paying huge amount of penalties to the ship transport companies. Other companies were hired by Portnet to do investigations to try and solve this problem. Eventually I was sub-sub-contracted to aid these investigations with...

Chief Foreman

Mining Technical Services Department, Sasol Coal

November 1993 - August 1994

Secunda, South Africa
Description: The Mining Technical Services Departments' main function was the management of mostly mining related projects within Sasol Coal. They also provided various types of services to the overall mining environment.
Period: November 1993 to August 1994 (10 months)
Role: Chief Foreman
Rationale: Transferred

Job Experience:
• Involved in the research and initial stages for the drafting of the Environmental Management Program Report (EMPR)

Chief Foreman

Sasol Coal Supply

November 1992 - October 1993

(SCS), Sasol Coal, Secunda, South Africa
Description: SCS has two integrated coal stockpile yards for the two Sasol Synfuels Plants. The coal produced by the mines is conveyed and stacked on the stockpiles. An adequate coal buffer is continuously maintained. Coal is reclaimed from the stockpiles, which is fed to the plants.
Period: November 1992 to October 1993 (1 year)
Role: Chief Foreman
Rationale: Transferred

Job Experience:
Project - Supervisory role
• Personnel and financial management of one of the stockpile yards
• Production equipment maintenance management
• Safety management
• A measurement was done during this period to compare two different types of conveyor drive fluid-couplings


Sasol Coal

August 1992 - October 1992

Secunda, South Africa
Description: Function of this department given above
Period: August 1992 to October 1992 (3 months)
Role: Engineer-in-Training
Rationale: Promotion

Job Experience:
• Measurement of the 12,3km long overland conveyor from the Syferfontein Mine for it's' performance characteristics


Twistdraai Mine

February 1991 - July 1992

Secunda, South Africa
Description: Twistdraai Mine's main function (like the other mines within Sasol Coal) is the production of coal to the Sasol Synfuels Plants.
Period: February 1991 to July 1992 (1 year and 6 months)
Role: Engineer-in-Training
Rationale: Transferred

Job Experience:
• Work as an artisan and a foreman (i.e. take full responsibility for these positions) in underground production sections, as part of the training programme
• Investigation into the set-up, functioning and potential improvements of the Underground Cable Repair Workshop
• Vibration measurements and analysis within the Condition Monitoring Department.
• Rotational training on underground equipment

Technical Assistant

Sigma Colliery

February 1989 - January 1990

Sasolburg, South Africa
Description: Sigma Colliery back then was the main producer of coal to the previously known Sasol One Synfuels Plant.
Period: February 1989 to January 1990 (1 year)
Role: Technical Assistant
Rationale: Transferred to Secunda (Did one year Military Service during 1990)

Job Experience:
• Involved in the calculations and implementation of a power-factor correction unit for underground sections.
• Investigation into the potential improvement of the method whereby the belting of an incline conveyor (from underground to the surface) was changed.
• Rotational training.

Qualifications & Certifications

University of Potchefstroom

Technical High School Wolmaransstad

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