COURSE OVERVIEW:

The ability to predict and analyze fault conditions is essential for the design of resilient power networks and the coordination of protective relaying. This course provides a comprehensive mathematical and technical framework for calculating short circuit currents in complex electrical systems. Participants will explore the behavior of synchronous machines, transformers, and distribution cables during transient events, focusing on how these components influence fault magnitudes and durations.

The scope of this training addresses symmetrical and asymmetrical fault analysis using the per-unit system and symmetrical components. It covers the technical nuances of calculating fault levels at various points in a distribution network, including the impact of cable impedance and motor contribution. The curriculum provides a detailed focus on the selection of equipment ratings, such as the breaking capacity of circuit breakers and the thermal withstand limits of distribution cables.

Coverage includes the implementation of fault analysis software and manual calculation techniques to verify system stability. Attendees will learn to interpret fault data from digital recorders and use it to perform root cause analysis of system failures. By combining advanced electrical theory with practical network modeling, the course equips professionals with the expertise required to ensure that power systems can safely withstand and isolate faults without catastrophic damage.

COURSE OBJECTIVES:

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

• Classify different types of faults: Symmetrical and Asymmetrical.
• Utilize the Per-Unit system for simplified network calculations.
• Apply Symmetrical Components (Positive, Negative, Zero sequence) to the analysis.
• Calculate three-phase short circuit levels at various system nodes.
• Analyze Line-to-Ground, Line-to-Line, and Double-Line-to-Ground faults.
• Determine the fault contribution from motors and synchronous generators.
• Calculate the thermal and mechanical stresses on cables during a fault.
• Select circuit breakers and fuses based on calculated interrupting ratings.
• Model distribution cable impedance and its effect on fault attenuation.
• Coordinate protective relay settings based on fault study results.
• Use fault recorders and event logs to analyze real-world incidents.
• Ensure system design complies with international fault level standards.

TARGET AUDIENCE:

This course is intended for Power System Engineers, Protection Engineers, Distribution Planners, and Senior Technical Managers involved in network design.

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.