What is Power Factor: Improvement, Formula & Definition

In general power is the capacity to do work. In electrical domain, electrical power is the amount of electrical energy that can be transferred to some other form (heat, light etc) per unit time. Mathematically it is the product of voltage drop across the element and current flowing through it. Considering first the DC circuits, … Read more

Ferranti Effect in Power System

In general practice we know, that for all electrical systems current flows from the region of higher potential to the region of lower potential, to compensate for the electrical potential difference that exists in the system. In all practical cases, the sending end voltage is higher than the receiving end due to line losses, so … Read more

Corona Discharge: How to Reduce The Corona Effect

Corona Discharge (also known as the Corona Effect) is an electrical discharge caused by the ionization of a fluid such as air surrounding a conductor that is electrically charged. The corona effect will occur in high voltage systems unless sufficient care is taken to limit the strength of the surrounding electric field. Corona discharge can … Read more

Equal Area Criterion

At first we have to know about power stability study. Stability study is the procedure for deciding the stability of a system upon some disturbances and this is followed by several switching actions (ON and OFF). In the power system, the behavior of synchronous machine can have some impacts due to these disturbances. The evaluation … Read more

Load Flow or Power Flow Analysis

It is the computational procedure (numerical algorithms) required to determine the steady state operating characteristics of a power system network from the given line data and bus data. Things you must know about load flow: Load flow study is the steady state analysis of power system network. Load flow study determines the operating state of … Read more

Flexible AC Transmission Systems | FACTS

Flexible AC Transmission Systems (FACTS) – What and why? FACTS is the acronym for “Flexible AC Transmission Systems” and refers to a group of resources used to overcome certain limitations in the static and dynamic transmission capacity of electrical networks. The IEEE defines FACTS as alternating current transmission systems incorporating power-electronics based and other static … Read more

Tariff of Electricity in India

Tariff refers to the amount of money the consumer has to pay for making the power available to them at their homes. Tariff system takes into account various factors to calculate the total cost of the electricity. Before understanding tariff of electricity system in detail, a slight overview of the entire power system structure and … Read more

Inductance in Transmission Line

Reason of Transmission Line Inductance Generally, electric power is transmitted through the transmission line with AC high voltage and current. High valued alternating current while flowing through the conductor sets up magnetic flux of high strength with alternating nature. This high valued alternating magnetic flux makes a linkage with other adjacent conductors parallel to the … Read more

Skin Effect in Transmission Lines

Skin Effect The phenomena arising due to unequal distribution of current over the entire cross section of the conductor being used for long distance power transmission is referred as the skin effect in transmission lines. Such a phenomena does not have much role to play in case of a very short line, but with increase … Read more

Load Flow and Y Bus

Formation of Bus Admittance Matrix (Ybus) S1, S2, S3 are net complex power injections into bus 1, 2, 3 respectively y12, y23, y13 are line admittances between lines 1-2, 2-3, 1-3 y01sh/2, y02sh/2, y03sh/2 are half-line charging admittance between lines 1-2, 1-3 and 2-3 The half-line charging admittances connected to the same bus are at … Read more