Protection différentielle réseaux électriques HT (Cours C3)

Explore the world of differential protection for high and medium voltage power networks. This course provides a comprehensive understanding of differential protection principles and its diverse applications.

Here's a breakdown of the key topics covered:

• Fundamentals of Differential Protection:

  • Understand the core principles of how differential protection works.
  • Define differential current and stabilizing current.
  • Learn about differential current as a tripping element and stabilizing current as a stabilization element.
  • Explore vector sum vs. arithmetic sum in differential protection.

• Longitudinal Differential Protection (87L):

  • Delve into the application of 87L differential protection for short or high-voltage lines and cables.
  • Learn about pilot wires, single-phase and asymmetrical sum configurations.
  • Understand the challenges associated with pilot wire implementation in long lines.

• Digital Longitudinal Differential Protection (87L):

  • Discover the advantages of digital 87L differential protection solutions.
  • Explore communication interfaces and support systems.
  • Learn about the role of fiber optics in guard cables and operational interfaces.
  • Understand local and remote measurements, and the importance of differential measurement synchronization.

• Transformer Differential Protection (87T):

  • Master 87T differential protection for 2-winding and 3-winding transformers.
  • Address the challenges of inrush current and magnetizing current.
  • Learn about current balancing and phase displacement compensation due to time-of-day effects.
  • Understand the calculation of auxiliary current transformer ratios and characteristic curves.

• Busbar Differential Protection (87BB):

  • Explore 87BB differential protection for busbar systems.
  • Apply Kirchhoff's laws to analyze busbar topologies.
  • Understand protection zones and multi-zone differential protection strategies.
  • Learn about the boundaries of protection zones.

• Supplementary Resources & Advanced Topics:

  • Access additional resources, technological schematics, and case studies.
  • Examine specific application scenarios and various protection types.

This course is designed for professionals seeking to enhance their knowledge of power system protection, specifically focusing on differential protection techniques. Gain practical insights into implementing and optimizing differential protection systems for reliable and efficient power grid operation.