COURSE OVERVIEW:

The design of protection systems for high voltage substations is a critical engineering discipline that ensures grid stability and asset preservation. This course provides a technical exploration of the "Protection Philosophy" required for 33 kV and 132 kV networks, focusing on the selection of overlapping protection zones to eliminate "blind spots." Participants will explore the mechanics of "Fault Analysis," learning how to design schemes that provide high-speed clearing for primary faults while maintaining robust backup coordination.

The scope of this training addresses the intricate design of protection for transformers, busbars, and feeders within a transmission and distribution interface. It covers the technical nuances of "Current Transformer" (CT) and "Voltage Transformer" (VT) sizing, focusing on the avoidance of saturation during peak fault conditions. The curriculum provides a detailed focus on the integration of "Numerical Relays" into a unified substation architecture, ensuring that protection, control, and data acquisition systems operate in a seamless and cyber-secure environment.

Coverage includes the implementation of "Differential," "Distance," and "Overcurrent" schemes tailored specifically for the 33/132 kV voltage levels. Attendees will learn to utilize "Logic Diagrams" to design "Breaker Failure" and "Auto-Reclose" sequences that enhance network resilience. By combining advanced protection theory with practical design workflows, the course equips professionals with the expertise required to engineer modern substations that meet international utility standards for reliability and safety.

COURSE OBJECTIVES:

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

• Define the "Protection Zones" for a typical 132/33 kV substation layout.
• Identify the criteria for "Selectivity," "Speed," and "Sensitivity" in design.
• Size "Current Transformers" (CTs) for protection and measurement classes.
• Design "Busbar Protection" (87B) using high and low impedance schemes.
• Implement "Transformer Differential" (87T) and "Restricted Earth Fault" (REF).
• Configure "Distance Protection" (21) for 132 kV transmission lines.
• Design "Feeder Protection" for 33 kV distribution networks.
• Develop "Breaker Failure" (50BF) logic and tripping matrices.
• Coordinate "Directional Overcurrent" (67) for ring main systems.
• Integrate "Tele-protection" signals for accelerated fault clearing.
• Design "DC Auxiliary" supply systems for protection reliability.
• Utilize "Engineering Workstations" for numerical relay configuration.

TARGET AUDIENCE:

This course is intended for Protection Design Engineers, Substation Engineers, Electrical Consultants, and Technical Managers involved in grid infrastructure projects.

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.