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Power & Electrical Engineering

On-Load Tap Changer (OLTC) Maintenance and Troubleshooting

On-Load Tap Changer (OLTC) Maintenance and Troubleshooting Training Course provides a comprehensive understanding of OLTC…

Code BII-PWR025 5-Day Dubai, Istanbul, London, Online Online + Classroom
Overview

Course Description

On-Load Tap Changer (OLTC) Maintenance and Troubleshooting Training Course provides a comprehensive understanding of OLTC systems and their critical role in maintaining voltage stability in power transformers. On-Load Tap Changer Maintenance Training Course content focuses on how effective maintenance and troubleshooting practices ensure consistent voltage regulation under varying load conditions.

Participants will explore the design, components, and operational principles of OLTC systems, including resistive and reactive configurations. The course highlights the importance of routine inspections, oil monitoring, and component servicing to maintain system performance.

With a practical approach, this training course emphasizes fault identification, diagnostic techniques, and structured troubleshooting methods. Participants will also gain insight into improving transformer reliability and minimizing downtime through proper OLTC management. The course ensures a balanced understanding of both technical concepts and real-world application in transformer maintenance environments.

Objectives

What you will achieve

On-Load Tap Changer (OLTC) Maintenance and Troubleshooting Training Course aims to strengthen technical knowledge and practical skills required for effective OLTC operation and maintenance. It focuses on enhancing reliability, improving performance, and minimizing operational disruptions.

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

  • Understand the design, components, and operating principles of OLTC systems
  • Apply preventive maintenance practices to ensure optimal OLTC performance
  • Identify common faults such as arcing, overheating, and mechanical wear
  • Utilize diagnostic tools and methods for accurate fault detection
  • Perform structured troubleshooting and repair procedures for OLTC components
  • Test and validate system performance after maintenance activities
  • Improve transformer reliability through effective OLTC management strategies
Training methodology

How the course is delivered

On-Load Tap Changer (OLTC) Maintenance and Troubleshooting Training Course adopts a structured and practical learning approach to ensure effective knowledge transfer and skill development. The course combines instructor-led sessions with interactive discussions to explain key concepts related to OLTC systems, maintenance procedures, and troubleshooting techniques.

Participants will engage in detailed learning covering OLTC components, system operation, and diagnostic practices. Emphasis is placed on applying theoretical knowledge through real-world scenarios and guided problem-solving exercises.

Hands-on sessions provide opportunities to practice inspection, fault identification, and repair techniques. Case studies further enhance understanding by demonstrating actual OLTC failures and solutions. This blended learning approach ensures participants gain both technical expertise and practical confidence in managing OLTC systems effectively.

Who should attend

Designed for

On-Load Tap Changer Maintenance Training Course is designed for professionals involved in the operation, maintenance, and reliability of power transformers and associated systems. It supports individuals seeking to improve their troubleshooting capabilities and enhance system performance.

This training course will greatly benefit:

  • Electrical engineers working with transformer systems and voltage regulation
  • Transformer technicians responsible for OLTC servicing and maintenance
  • Substation operators managing power system operations
  • Maintenance personnel involved in inspection and repair activities
  • Power system reliability engineers focused on minimizing downtime
  • Professionals engaged in transformer manufacturing and servicing
Course outline

Daily programme

DAY 01Introduction to OLTC Systems
  • Principles of voltage regulation in transformers
  • Types of OLTCs: resistive and reactive designs
  • Components of OLTC systems and their functions
DAY 02Maintenance Practices for OLTCs
  • Routine inspections and cleaning procedures
  • Monitoring oil quality and replacing insulating fluids
  • Checking contacts, selectors, and diverter switches
DAY 03Diagnosing OLTC Faults
  • Common issues: arcing, overheating, and wear
  • Tools for OLTC fault detection and analysis
  • Real-life examples of OLTC failures
DAY 04Troubleshooting Techniques
  • Step-by-step repair procedures for OLTC components
  • Testing repaired systems for proper operation
  • Case studies of OLTC troubleshooting scenarios
DAY 05Practical Exercises and Reliability Planning
  • Hands-on maintenance and troubleshooting sessions
  • Developing a long-term OLTC reliability strategy
  • Final assessment and certification
Certificate

Certification & accreditation

BII Certificate of Completion

BII Certificate of Completion Upon successful completion, participants receive a BII Development Institute Certificate of Completion with a unique reference code that is independently verifiable. Our certificates are recognised internationally and reflect successful completion of your chosen programme.

Schedule

Upcoming sessions

DatesVenueFormatFee
21 - 25 Sep 2026 Online Online US$ 5950 Register
03 - 07 May 2027 London Classroom US$ 5950 Register
31 May - 04 Jun 2027 Istanbul Classroom US$ 5950 Register
29 Nov - 03 Dec 2027 Dubai Classroom US$ 5950 Register
Enrolment

Register, request in-house, or download the agenda

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