COURSE OVERVIEW:

The operation of high-voltage power transformers represents the backbone of electrical grid stability and industrial power distribution. This course focuses on the intricate mechanics and operational philosophies governing 132/33 kV and 33/132 kV units, exploring how these critical assets manage voltage transformation while enduring thermal and mechanical stresses. Participants will gain a comprehensive understanding of the physical construction, electromagnetic principles, and the vital role these transformers play in interconnecting transmission and distribution networks.

The scope of this training extends beyond basic theory to encompass the sophisticated diagnostic tools and monitoring systems required for modern grid management. It addresses the complexities of load tap changer operations, cooling system management, and the chemical analysis of insulating oils. By examining the lifecycle of a transformer from commissioning to decommissioning, the course provides a holistic view of asset management, ensuring that technical personnel can predict potential failures before they lead to costly outages or equipment damage.

Coverage includes detailed explorations of preventative, predictive, and corrective maintenance strategies tailored specifically for high voltage environments. Students will analyze real-world scenarios involving fault gas analysis, insulation resistance testing, and sweep frequency response analysis. The curriculum is designed to bridge the gap between manufacturer specifications and field reality, equipping professionals with the practical skills needed to optimize transformer performance, extend service life, and maintain the highest safety standards in the high voltage substation environment.

COURSE OBJECTIVES:

After completion of this course, the participants will be able to:

• Demonstrate a profound understanding of the internal construction of 132 kV power transformers.
• Identify and mitigate the primary causes of transformer insulation degradation and aging.
• Execute professional dissolved gas analysis (DGA) interpretations using various international standards.
• Manage the complex cooling requirements for both ONAN and ONAF cooling configurations.
• Troubleshoot mechanical and electrical failures within the load tap changer (OLTC) mechanisms.
• Apply advanced diagnostic techniques such as Power Factor testing and Capacitance measurement.
• Analyze the impact of harmonics and unbalanced loads on transformer thermal performance.
• Implement rigorous safety protocols for working within 132 kV substation environments.
• Supervise the oil filtration and purification processes to maintain dielectric strength.
• Evaluate transformer protection schemes, including Buchholz relays and differential protection.
• Perform accurate sweep frequency response analysis (SFRA) to detect winding displacements.
• Develop a comprehensive long-term maintenance schedule based on condition monitoring data.

TARGET AUDIENCE:

This course is specifically designed for Electrical Engineers, Substation Maintenance Managers, Asset Management Professionals, and Senior Technicians responsible for the reliability and upkeep of high voltage power infrastructure.

TRAINING COURSE METHODOLOGY:

A highly interactive combination of lectures, discussion sessions, and case studies will be employed to maximize the transfer of information, knowledge, and experience. The course will be intensive, practical, and highly interactive. The sessions will start by raising the most relevant questions and motivating everybody to find the right answers. The attendants will also be encouraged to raise more of their questions and to share in developing the right answers using their analysis and experience. There will also be some indoor experiential activities to enhance the learning experience. Course material will be provided in PowerPoint, with necessary animations, learning videos, and general discussions.

The course participants shall be evaluated before, during, and at the end of the course.

COURSE CERTIFICATE:

National Consultant Centre for Training LLC (NCC) will issue an Attendance Certificate to all participants completing a minimum of 80% of the total attendance time requirement.