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 ... Read More

In electrical power systems, electric power is generated, transmitted, and distributed in the form of alternating current. The electrical power is generated at a power generating station which is located far away from the consumer's load. The generated power is then transmitted and distributed through an electrical network to the ... 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 ... Read More

Oil circuit breakers (OCBs) are used for performing the following two important functions - Switching of electric supply Protection of electrical system They are called oil circuit breakers because in this type of circuit breakers, insulating/dielectric oil is used for quenching the arc. In this article, we will ... Read More

In electrical engineering, a relay is an electromagnetic or an electronic switch that can automatically operate if any abnormal conditions occur in the circuit. The primary functions of a relay are to monitor the circuit, sense the fault, and initiate the tripping of the circuit if a fault occurs in ... Read More

An MCB or Miniature Circuit Breaker is a type of circuit breaker or an automatic electric switch used to provide protection against different types of electric faults like short-circuit, overcurrent, overload, etc. Therefore, MCB is considered an electrical protection device. MCBs are primarily used in low-voltage electrical circuits like house ... Read More

A power system is an interconnected network of electrical components such as alternators, transformers, transmission and distribution lines, and electrical loads. Each of these components are sensitive to different types of faults or abnormal conditions. For example, a transformer can burn due to overloading or short-circuit. Therefore, it is desirable ... Read More

A protective relay is an electrical switch which can automatically operate when a fault or any other abnormal conditions occur in the electrical system. It sends a signal to turn on the alarm or indicator or trip a circuit breaker to separate the faulty part from the healthy section. The ... Read More

In the field of electrical engineering and power systems, a fault is an abnormal condition that can result in damages to the circuit. Hence, a fault is nothing but a defect in the power system. When a fault occurs in a power system, we need a "power system protection" scheme ... Read More

The main difference between primary protection and backup protection is in their functionality. Primary Protection is provided to quickly detect the fault and isolate the faulty section from the healthy part, while Backup Protection is provided to isolate the faulty and healthy parts if the primary protection fails. In this ... Read More