A Power Station Commissioning Electrical Engineer does the following when being involved in the construction of a new Power Station:
They oversee all commissioning activities and the start up of equipment and plant. The commissioning engineer will also be responsible for analysing commissioning procedures and instructions. They will need to identify who should be involved in a range of Engineering tasks, verifying the availability of test equipment and technical pre-requisites and ensuring that commissioning can commence at the appropriate time. They will also perform tests on equipment to ensure the full commissioning of the system, detect risks, and suggest adapted solutions. The commissioning engineer will ensure that safety and environmental conditions are met.

HV Commissioning staff are responsible for verifying that a plant is functionally operational & fit to be connected to the electricity network by applying best safety, operation & engineering practice and standards.
HV Commissioning teams are geared up to meet the primary substation work programme

The Role of a Commissioning Engineer/Technician

Assessment of site safety prior to engaging in commissioning activities & to coordinate own work schedule with the Person In Charge of Works as appropriate.
Commissioning primary, secondary & peripheral plant forming part of Transmission / Distribution substations which to be connected to the electricity network.
Commissioning testing of instrument transformers, power transformers & HV switchgear.
Commissioning testing of protection relays
Functional verification of protection scheme designs & compliance to approved design standards.
Coordinate, plan, & deliver allocated commissioning projects
A commissioning engineer will reflect company values & policies when interacting with fellow staff members or when dealing with the Client on site
To share ones experience in the ongoing development of safe & best practice commissioning protocols where identified.
A good commissioning engineer will share knowledge & competencies within a team structure.

Common Requirements For Commissioning Engineers:
Formal qualification (Degree/Diploma or Trade) in Electrical Engineering
Minimum of 3-7 years Post Grad experience relevant in the Power Transmission & Distribution or Power Generation industry.
Knowledge & experience of  Electrical Safety Rules & procedures.
Knowledge & experience of operations procedures & operation of primary substations
Thorough knowledge of schematics, cubicle wiring & functional testing
Experience of pre-commissioning cubicles and substation plant
Working knowledge of digital relays and software
Appreciation of test equipment.
Conceptual understanding of the design & operating mechanism of Power Plant i.e. power transformers, CT’s , VT’s, circuit breakers.
Familiarity with typical protection philosophies as applied to Transmission and Distribution Networks
Commissioning Engineers usually require computer literacy including Microsoft Office.
Proven ability to assess site safety prior to engaging in commissioning activities and to coordinate own work schedule with the Person In Charge of Works and System Manager as appropriate.
Self-motivated and capable of working on their own initiative without direct supervision
Work well with other team members and actively participate in achieving the team’s targets
Good written and verbal communications skills
Excellent interpersonal skills
Able to organise, plan & monitor all aspects of the work
Have a logical, yet imaginative approach to problem solving
Demonstrating the ability to make quality decisions & judgments
Prepared to take the responsibility for developing other members of staff
The ability to accept responsibility and be able to show a high level of commitment & flexibility.

HV Commissioning Engineers/Technician

A Power Station Commissioning Electrical Engineer does the following when being involved in the construction of a new Power Station:
They oversee all commissioning activities and the start up of equipment and plant. The commissioning engineer will also be responsible for analysing commissioning procedures and instructions. They will need to identify who should be involved in a range of Engineering tasks, verifying the availability of test equipment and technical pre-requisites and ensuring that commissioning can commence at the appropriate time. They will also perform tests on equipment to ensure the full commissioning of the system, detect risks, and suggest adapted solutions. The commissioning engineer will ensure that safety and environmental conditions are met.

HV Commissioning staff are responsible for verifying that a plant is functionally operational & fit to be connected to the electricity network by applying best safety, operation & engineering practice and standards.
HV Commissioning teams are geared up to meet the primary substation work programme

The Role of a Commissioning Engineer/Technician

Assessment of site safety prior to engaging in commissioning activities & to coordinate own work schedule with the Person In Charge of Works as appropriate.
Commissioning primary, secondary & peripheral plant forming part of Transmission / Distribution substations which to be connected to the electricity network.
Commissioning testing of instrument transformers, power transformers & HV switchgear.
Commissioning testing of protection relays
Functional verification of protection scheme designs & compliance to approved design standards.
Coordinate, plan, & deliver allocated commissioning projects
A commissioning engineer will reflect company values & policies when interacting with fellow staff members or when dealing with the Client on site
To share ones experience in the ongoing development of safe & best practice commissioning protocols where identified.
A good commissioning engineer will share knowledge & competencies within a team structure.

Common Requirements For Commissioning Engineers:
Formal qualification (Degree/Diploma or Trade) in Electrical Engineering
Minimum of 3-7 years Post Grad experience relevant in the Power Transmission & Distribution or Power Generation industry.
Knowledge & experience of  Electrical Safety Rules & procedures.
Knowledge & experience of operations procedures & operation of primary substations
Thorough knowledge of schematics, cubicle wiring & functional testing
Experience of pre-commissioning cubicles and substation plant
Working knowledge of digital relays and software
Appreciation of test equipment.
Conceptual understanding of the design & operating mechanism of Power Plant i.e. power transformers, CT’s , VT’s, circuit breakers.
Familiarity with typical protection philosophies as applied to Transmission and Distribution Networks
Commissioning Engineers usually require computer literacy including Microsoft Office.
Proven ability to assess site safety prior to engaging in commissioning activities and to coordinate own work schedule with the Person In Charge of Works and System Manager as appropriate.
Self-motivated and capable of working on their own initiative without direct supervision
Work well with other team members and actively participate in achieving the team’s targets
Good written and verbal communications skills
Excellent interpersonal skills
Able to organise, plan & monitor all aspects of the work
Have a logical, yet imaginative approach to problem solving
Demonstrating the ability to make quality decisions & judgments
Prepared to take the responsibility for developing other members of staff
The ability to accept responsibility and be able to show a high level of commitment & flexibility.

Commissioning engineers are usually given a live-out allowance as they are based on the site where they work and may be away from home for certain periods of time. Commissioning engineers may do a lot of travelling from site to site, depending on where they work.

Important skills: General management skills, human relations, communication skills, deligation and time management.

The types of transmission lines are:

• Overhead Transmission Lines
• Subtransmission Lines
• Underground Transmission Lines

Overhead AC Transmission Lines

Overhead AC transmission lines share one characteristic; they carry 3-phase current. The voltages vary according to the particular grid system they belong to. Transmission voltages vary from 69 kv up to 765 kv. The following are examples of different overhead transmission line structures in use today. The DC voltage transmission tower has lines in pairs rather than in threes (for 3-phase current) as in AC voltage lines. One line is the positive current line and the other is the negative current line.

Some typica transmission line structures

Transmission Lines

Woodtower Transmission Lines

Transmission Lines

Subtransmission Lines

Subtransmission lines carry voltages reduced from the major transmission line system. Typically, 34.5 kv to 69 kv, this power is sent to regional distribution substations. Sometimes the subtransmission voltage is tapped along the way for use in industrial or large commercial operations. Some utilities categorize these as transmission lines.

Subtransmission Pole

Description

Wooden Transmission Lines

Underground Transmission Lines

Underground transmission lines are more common in populated areas. They may be buried with no protection, or placed in conduit, trenches, or tunnels.

Transmission lines are installed in a tunnel,which enables many circuits in a limited area.

From Power Generation to Consumer

Power Generation Plants

Substations

• Step-up Transmission Substation
• Step-down Transmission Substation
• Distribution Substation
• Underground Distribution Substation
• Substation Functions
• Substation Equipment

Transmission Lines

• Overhead Transmission Lines
• Subtransmission Lines
• Underground Transmission Lines

Distribution Systems

• Industrial Customer
• Commercial Customer
• Residential Customer
• Transportation Customer

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