The Stroboscopic Effect in Fluorescent lamp is a phenomenon which causes running or moving equipment to appear stationary or appear to be operating slower than they actually are. Fluorescent materials …
What is Load Forecasting? Electrical energy cannot currently be stored in large amounts. It has to be generated whenever there is a demand for it. It is, therefore, imperative for …
What is Short Circuit? Whenever a fault occurs on a network such that a large current flows in one or more phases, a short circuit is said to have occurred. A …
The difference in level between points of supports and the lowest point on the conductor is called sag in overhead transmission lines. Sag in Hot and Cold Day While erecting …
What is Corona? The phenomenon of violet glow, hissing noise and production of ozone gas in an overhead transmission line is known as the corona. In this article, we will study …
We usually think of an electric power system in terms of its more impressive parts – the big generating stations, transformers, high-voltage lines, etc. While these are some of the basic elements, …
What is IEC 61850? IEC 61850 is a standard for the design of electrical substation automation. It is the base for all developments in substation automation. IEC 61850 is a …
What is the Rectifier Transformer? Rectifier transformers are different from normal power and distribution transformers because they are special transformers made for industrial application. A Rectifier transformer is a special application …
The principal function of protective relaying is to cause the prompt removal from service of any element of the power system when it starts to operate in an abnormal manner …
The gas turbine power plant obtains its power by utilizing the energy of burnt gases and air, which is at high temperature and pressure by expanding through several rings of …
An “air break switch’ is a switchgear device that uses air as the dielectric. Air Break Switches (ABS) are widely installed throughout distribution networks for use as both isolation or …
Before learning about different switchgear components, let us understand what is switchgear. The apparatus used for switching, controlling and protecting the electrical circuits and equipment is known as switchgear. Switchgears are …
What is a Protective Relay? The protective relay was invented more than 160 years ago. During the last 60 years, it has undergone considerable change, the most obvious of which …
What is Switchgear? Definition of Switchgear: The apparatus used for switching, controlling and protecting the electrical circuits and equipment is known as switchgear. The term ‘switchgear’ is a generic term …
Each year as line and system loading increase and more operating companies superimpose higher voltage transmission systems on existing facilities, the need for high-speed fault clearing, particularly in the face …
What is VCB? VCB stands for Vacuum Circuit Breaker. In vacuum circuit breakers, the vacuum is used as the arc quenching medium. Vacuum offers the highest insulating strength. So it has …