Secondary design knowledge sharing session

Objectives

• Learn how to approach protection design in power systems.
• Understand how to read and interpret protection scope documents before starting design.
• Gain knowledge of relay selection fundamentals.
• Explore how protection scope is implemented on protection drawings.
• Recognize the role of manufacturer drawings in completing protection designs.
• Understand feasibility and detailed design stages.
• Learn about CTs, their cores, and their importance in calculations.
• Build basic knowledge of AC/DC schematics.
• Understand the fundamentals of single-line diagrams (SLDs).

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Key Topics

• Overview of Step-by-step process of protection design in power systems.
• Reading and interpreting protection scope documents.
• Relay selection basics: types, criteria, and applications.
• Translating protection scope into protection drawings.
• Manufacturer drawings: how they support and validate protection designs.
• Feasibility vs. detailed design stages in protection engineering.
• CTs and their cores: measurement, protection, and metering roles.
• Basics of AC/DC schematics in substation protection.
• Single-Line Diagram (SLD) fundamentals and their role in system representation.

Practical Focus

• Walk-through of a sample protection design workflow.
• Interpreting a protection scope document and mapping it to drawings.
• Basics of relay selection for a feeder protection scheme.
• Demonstration using manufacturer drawings to finalize design.
• CT core allocation for metering and protection examples.
• Reading AC/DC schematics and identifying key circuits.
• Drawing and interpreting a simple SLD.

Key Takeaways

• Ability to initiate and structure protection design projects.
• Understanding of how scope documents guide design implementation.
• Knowledge of relay selection and CT core allocation.
• Awareness of feasibility and detailed design stages.
• Practical skills in reading schematics and SLDs.