Commissioning in HV Substations

Equipment readiness for a commercial service


About The Course

Equipment readiness for a commercial service is proven by testing all its functions under different conditions. ‘Do not believe, until it is proven’ is the key to successful testing and satisfactory operation of electric systems. Equipment is finally proven when it is energized and tested on load during the start-up (first energisation).

Errors missed in previous stages of the project are discovered in the commissioning. During testing the engineers are exposed to high and low voltages and currents. In order to prevent injuries and damages, it is important that they are trained to fully understand the processes and plan all steps of the commissioning in advance.

Learning Outcomes

The seminar covers all aspects of testing in electrical systems, performed during construction or maintenance. It considers practical understanding of variety of tests and prescribes how to carefully plan and perform them. The final stage is the first energisation when equipment, connected to the system, is tested under load conditions. This seminar will highlight:


  • Commissioning planning, and process
  • Commissioning inspections
  • Commissioning / maintenance tests
  • First energisation with on load tests


Participants to this seminar will receive a thorough training on the subjects covered by the course outline with the Tutor utilising a variety of proven adult learning teaching and facilitation techniques. The course is designed to have an interactive format to maximize delegate participation. Questions and answers sessions are encouraged throughout the course. The case-studies are tailored to the attendees needs and various examples from practice will be discussed in problem solving workshop sessions. At the seminar, the participant will learn to:


Understand the testing process

  • Plan and prepare for testing
  • Plan and carry out inspections
  • Perform primary and secondary injections
  • Plan the first energisation
  • Perform on line tests
  • Consider safety aspects during testing

Who Should Attend

This course is suitable to a wide range of professionals involved in projects, planning, commissioning and maintenance of electrical power systems. The following profile will greatly benefit:

  • Testing Engineers/Technicians
  • Maintenance Engineers/Technicians
  • Consulting Engineers/Technicians
  • Project Engineers
  • Others who want a solid preparation in testing & commissioning

Course Faculty - Vukan Polimac

Vukan Polimac


Fellow of IET, IEEE, CIGRE

Vukan Polimac

In his 30 years working experience he provided highest quality services in system planning and analysis to major transmission and distribution and transportation companies including London Underground, National Grid Company (UK), MTRC Metro in Hong Kong, West Coast Main Line connection to NG, Scottish Power, ESB-Ireland, ESKOM-South Africa, Mauritius CEB, Balkan countries – grids of Romania and former Yugoslavia, HV network ISA-Colombia, Western Power Distribution-UK, etc.


Vukan’s technical expertise includes most aspects of power systems analysis, electrical asset management and railway connections to power networks where he provides solutions to technical problems and supports other field’s experts in complex assignments. He has project management skills in technical and environmental projects as well as experience in short and long-strategic term planning, maintenance and asset management, power quality analysis of transmission and generation systems, distribution, transportation and other power networks. Experienced in generation and network integration, electrical component of energy master plans as well as strategic asset replacement, he was also involved in load- forecast analysis and generation dispatching. Published papers on asset management based on projects and experience in working for distribution companies in Africa and Europe.


Vukan is very experienced in design, procurement, commissioning, erection and refurbishment of major projects in transmission and distribution substations up to 420 kV and hydro and thermal power plants. Served as project manager on several major projects as well as head of the Engineering Group, Vukan was responsible for final design, equipment specifications, layouts tender evaluation and commissioning. He has carried out conceptual development of protection and control philosophy for various projects as well as reviewed and approved project drawings and documents. He has applied the latest IEC standards, various codes of practice and engineering recommendations.  He has also specific experience in conceptual design of power supply for transportation and traction railway systems, defining the design principles and technical specifications for future design and privatisation process. He has analysed quality of power supply for connection of AC and DC unbalanced load to power network and published papers on practical implementation. Vukan carried out feasibility studies on reactive compensation (SVC and MSC) focusing on voltage variation and harmonic distortion issues.


Vukan has performed technical and economic evaluations, cost benefit net present value analysis, of various transmission and distribution schemes and electrical equipment. He carried out a number of asset evaluation analysis on electrical equipment and published papers on asset management, reliability and maintenance. He has performed equipment assessment and residual life prediction as part of strategic asset management analysis for a major underground transportation company in Asia. His duties have also included equipment arrangement optimisation in particular reliability aspect in terms of failure rate and financial consequences as non-supplied energy to the consumers.

Topics Covered

  • Commissioning Tests for Transformers

  • Commissioning Tests for HV Cables

  • Commissioning Tests for Earthing System

  • Commissioning Tests for Protection

  • Commissioning Tests for Control System

This training course has a limited attendance for up to 20 participants only. Sessions commence at 9am on all days, with short intervals at 10.30am and 3.30pm respectively. Refreshments will be provided in the short intervals. Lunch will be provided at 12:30pm for 1 hour. Sessions will end at 5pm on all days.

Unique Features with powerEDGE Training

• Pre-Course Questionnaire to help us focus on your learning objectives
• Detailed Course & Reference Manual for Continuous Learning and Sharing
• Practical Exercises & Case Examples to better understand the principles
• Limited class size to ensure One-to-One Interactivity
• Assessment at the end of the course to help you develop a Personal Action Plan