Symmetrical Components and Fault Current Analysis

This on-demand webinar is on the topic of “Symmetrical Components and Fault Current Analysis” of power systems. This webinar, through slides and discussions, goes over the theory of symmetrical components and their role in analyzing asymmetrical faults in power systems.

The webinar starts with coverage of the theory of symmetrical components and applies the theory to finding sequence networks of balanced impedance loads, three-phase impedance loads, and transmission lines. It covers the calculation of power in sequence networks. Sequence networks of main components of transmission lines, such as transformers, synchronous generators, and motors, are discussed. Finding the Thevenin equivalent circuit is reviewed and applied to finding equivalents of positive-, negative-, and zero-sequence networks of transmission systems.

Single-line-to-ground, line-to-line, and double-line-to-ground faults are thoroughly analyzed and covered. A type of fault that consists of a simultaneous combination of two of the above faults is analyzed. Fault currents and fault-induced voltages at the point of fault are calculated for all of the fault types listed in the above paragraph. Three-phase faults are discussed and fault currents for them are calculated.

Each topic is immediately followed by well-chosen numerical examples and detailed steps leading to the solution of each to further enhance the learning experience of the participants. This webinar is intended for electrical engineers, as well as technical personnel who are interested in learning the fundamentals of power systems short circuit and fault current analysis. Mastery of the topics covered in this webinar is very much expected of those engineers who are interested in a career in power systems analysis, design, or protection.