Month: March 2011

Per Unit System – An Introduction

Fundamental to any power system analysis is the know-how of per unit systems. This article, part of a series of articles, will explain step by step how to calculate these parameters for any component anywhere in the power system. Let’s begin with the purpose.

Per unit system

The Power Flow Crux

The electrical power grid operates in equilibrium. The power supply from the generator matches the demand levied by the end-users. The flow of power to enable this demand-supply equilibrium over the transmission lines (T-lines) is governed by the following conditions.

Transmission Lattice Tower
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