OTI (Oil Temperature Indicator) and WTI (Winding Temperature Indicator) are two important components of an electrical transformer. OTI and WTI are the essential components of an electrical transformer, as they ensure the safe and reliable operation of the transformer. The primary function of both these indicators is the same i.e., ... Read More

Earth Leakage Circuit Breaker (ELCB) is a type of circuit breaker used in electrical circuits for providing protection against earth leakage fault. In other words, an ELCB is a protection device used to protect people from getting electric shocks in case of an earth leakage fault. The primary function of ... Read More

Motor Protection Circuit Breaker (MPCB) is a type of circuit breaker used for providing protection to electric motors. MPCBs are specially designed for protecting electric motors only. Read this article to learn the functions, working, and applications of motor protection circuit breaker (MPCB). What is an MPCB? Motor Protection ... Read More

A motor starter is an important device used for starting and stopping electric motors in a smooth and controlled manner. There are several different types of motor starts available for this purpose, but there is a special type of motor starter called a soft starter, which is used for controlling ... Read More

A VFD (Variable Frequency Drive) is a power electronic device used for controlling the operation of electric motors, especially induction motors. It is a type of motor drive whose working principle is based on the variation of supply voltage and frequency. It is also known by many other names such ... Read More

In electrical power systems, an isolator is a type of switchgear device which is mainly used for ensuring that the circuit is completely disconnected from the source of power supply. Since its main function is to provide isolation in the circuit, hence it is termed as an isolator. However, ... Read More

Ring Main Unit (RMU) is a switchgear device used in secondary distribution systems, i.e., between the distribution substation and the end consumer to ensure continuous power supply and isolate the faulty section from the network. The main purpose of using a ring main unit is to provide an uninterrupted power ... Read More

In electrical substations, an interconnected system of multiple capacitors is used for improving the power factor of the system, this interconnected system of capacitors is referred to as a capacitor bank. In short, a capacitor bank is device which consists of multiple capacitors connected in parallel or series and provide ... Read More

In electrical engineering, CVT stands for Capacitive Voltage Transformer. It is a specially designed electrical transformer used for stepping down the high voltage of incoming supply to a low voltage for metering, protection and automation. It is an important component of an electrical substation. Sometimes, CVT is also referred to ... Read More

In electrical power systems, different types of switchgear devices are used such as circuit breakers, AB switches, isolators for switching and protection purposes. These switching devices play an important role in power systems. There are two common types of switch devices used in electrical power systems are AB Switch (Air ... Read More