Maintenance and Engineering

Transformers and Switchgear Maintenance

Transformers and switchgear are critical and expensive assets in power systems. This course covers transformer construction and operation, insulating oil, testing and diagnostics, switchgear types, protection basics, inspection and maintenance, condition assessment and safety.

5 days Classroom or live online English

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Take the course details with you.

Download the full standard outline: why attend, methodology, objectives, audience, competencies, the daily outline and current plans.

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Why attend

From knowledge to real-world impact.

Failures of transformers and switchgear can cause long outages. This course helps you maintain and assess these assets effectively.

Workplace challenges

Professional Problems This Course Is Designed to Solve

The programme explores practical approaches to the following challenges. Results depend on how the learning is applied in your organisation.

Difficulty translating subject knowledge into practical workplace decisions.
Inconsistent approaches to the activities covered in the course outline.
Lack of a structured plan for applying and reviewing new skills.

Course methodology

How you will learn.

The course uses technical presentations, test result interpretation exercises, case studies and maintenance planning. It does not qualify participants for electrical work.

Course objectives

What you'll take away.

By the end of this course, participants will be able to:

Explain transformer construction and operation
Interpret insulating oil and dissolved gas analysis
Apply transformer testing and diagnostics
Understand switchgear types and protection
Plan inspection and maintenance
Assess asset condition and plan replacement

Target audience

Who should attend.

This course is suitable for:

Electrical engineers
Substation technicians
Maintenance managers
Utility engineers
Asset managers

Target competencies

Capabilities you will build.

Participants will develop competencies in:

Transformer fundamentals
Oil analysis
Electrical testing
Switchgear maintenance
Protection awareness
Condition assessment

Course outline

Your learning journey.

A focused, practical outline with time to explore, apply and reflect.

Day 1Transformers

09:00–09:54Construction
09:54–10:48Operation
10:48–11:00Cooling
11:00–11:30Coffee break
11:30–12:12Cooling (continued)
12:12–13:06Accessories
13:06–14:00Exercise: Transformer review

Day 2Diagnostics

09:00–09:54Oil testing
09:54–10:48Dissolved gas analysis
10:48–11:00Electrical tests
11:00–11:30Coffee break
11:30–12:12Electrical tests (continued)
12:12–13:06Thermography
13:06–14:00Lab: Test interpretation

Day 3Switchgear

09:00–09:54Switchgear types
09:54–10:48Circuit breakers
10:48–11:00Protection relays
11:00–11:30Coffee break
11:30–12:12Protection relays (continued)
12:12–13:06Safety interlocks
13:06–14:00Demonstration: Switchgear

Day 4Maintenance

09:00–09:54Maintenance strategies
09:54–10:48Inspection
10:48–11:00Testing
11:00–11:30Coffee break
11:30–12:12Testing (continued)
12:12–13:06Safety
13:06–14:00Case study: Transformer failure

Day 5Asset Management

09:00–09:54Condition assessment
09:54–10:48Health indices
10:48–11:00Replacement planning
11:00–11:30Coffee break
11:30–12:12Replacement planning (continued)
12:12–13:06Spares
13:06–14:00Capstone: Maintenance plan

The timings provided are estimates and may vary depending on the number of participants and the discussions taking place during the sessions. They are indicative only and do not constitute a binding commitment.

Dates & venues

Find a session that works for you.

Confirmed dates accept registration requests. Tentative dates are enquiry only.

Good to know

A few things to know.

How is the course delivered?

Our classroom programmes combine facilitated discussion, case studies, exercises and reflection. The precise format will be confirmed before enrolment.

Can you deliver this programme for our team?

Yes, you can enquire about a tailored programme. Share your goals, group size and preferred dates with our learning team.

Will I receive a certificate?

Participants who complete the programme receive a Smart Horizon UK certificate of attendance. Smart Horizon UK programmes are not externally accredited and do not award a professional qualification, licence or designation. Where a course title or outline refers to a professional certification (for example, AACE International's Certified Cost Professional), the programme supports learning and preparation only; the credential itself is awarded solely by the relevant professional body under its own application and examination requirements.

What should I confirm before booking travel?

Please confirm the session, exact venue, accessibility arrangements, fees and any visa requirements with the team before arranging travel. Tentative dates are not confirmed sessions.

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