Electrical System Design Analysis - Short Circuit Calculation - Base Knowledge part 7 and 8

This informative video explores the per-unit system and explains why it is the preferred method for short circuit calculations. It also outlines the essential prerequisites for preparing short circuit calculations, which include:

1. A Single Line Diagram (SLD) that reflects all components of the electrical system.
2. A comprehensive schedule of loads.
3. Calculated impedance values for various elements such as utility sources, generators, transformers, cables, motors, and lumped loads.
4. A simplified impedance diagram derived from the SLD.
5. A further simplified impedance diagram in the form of Thevenin's equivalent circuit to facilitate the application of Ohm's Law for calculating short circuit values in per-unit terms.

By providing a thorough understanding of the per-unit system and its significance in short circuit calculations, this video serves as a valuable resource for professionals and students in the field of electrical engineering.