A power plant is a systematic arrangement of electrical equipment used for producing electrical power. In other words, an industrial facility used for producing bulk amount of electric power is called a power plant. Power plant is also called generating station or power station. These power plants are connected to an electrical network, called grid or power grid. A typical power plant contains many electrical and mechanical equipment such as prime mover or turbine, alternators, transformers, circuit breakers, conductors, etc. A source of energy like steam/flowing water is used to rotate the prime mover that in turn drives the alternator ... Read More

In electrical power systems, an instrument transformer is used in measurement and protection applications. A current transformer is nothing but a specially designed voltage step-up and current step-down electrical transformer which is used to reduce the high currents in power lines to a safe value for metering and protection applications. In practice, a current transformer is referred to as a CT. Depending on the application, there are two main types of current transformers (CTs) namely, metering current transformer and protection current transformer. Both types of current transformers are different from each other in many aspects. The primary difference between ... Read More

An indoor substation is one in which the entire substation is built inside a building, whereas an outdoor substation is a substation in which the equipment are installed in an open environment. Read this article to understand all the important differences between indoor and outdoor substations. Let us start this article with a brief overview on electrical substations, indoor substations, and output substations. What is a Substation? A substation or electrical substation is an arrangement of electrical equipment for changing the voltage levels of electric supply for transmission, distribution, and utilization purposes. Basically, a substation is used for the following ... Read More

AIS and GIS are the two most widely used switchgear technology in the field of electrical substations. AIS stands for Air Insulated Switchgear and GIS stands for Gas Insulated Switchgear. A substation in which the insulation between phases is provided by the atmospheric air is called an air insulated substation or AIS substation. On the other hand, a substation in which the insulation within phase and between phases is provided by SF6 gas is known as a gas insulated substation or GIS substation. The primary difference between AIS substation and GIS substation is that an AIS substation uses the atmospheric ... Read More