A star delta starter is a type of motor starter that is used to control the starting and stopping of three-phase induction motors. It is commonly used in industrial applications where motors of large power ratings are used. In this…
What is a Lightning Strike and the Phenomenon of lightning Lightning has been a source of curiosity for humans for thousands of years. lightning is a discharge of electrical charge between cloud and ground, the height of the cloud above ground…
V/F Ratio in Variable Frequency Drives (VFDs) Variable Frequency Drives (VFDs) are extensively used in industrial and commercial applications to control the speed and torque of AC induction motors. One of the fundamental concepts that underpin the efficient operation of…
The DOL starter, also known as the Direct On-Line starter, is a widely used method for starting a 3-phase induction motor. It provides a simple and cost-effective solution for initiating motor operations. In this comprehensive guide, we will explore the…
Electrical safety is the main aim of any residential or commercial electrical installation. To prevent electrical shocks and identify insulation failures of electrical appliances, the ELCB full-form Earth Leakage Circuit Breaker is used. Generally available at different ratings 16A,32A, 40A,…
VFD block diagram showing rectifier , intermediate circuit and inverter
In this article, we will explore what is PRV In Transformer their Construction, and their working principle.
SF6 circuit breaker uses sulfur hexafluoride gas as an arc quenching medium. SF6 gas is used because it has high dielectric strength which acts as a good arc-quenching medium. SF6 is an electro-negative gas and has a high capacity to…
The star and delta connections are two common types of connections used in the winding of three-phase motor. For star connection or delta connection of winding, six wires or leads of the motor winding must be accessible. 3-phase motors are…
Transformer oil testing is a crucial part of transformer maintenance, as the oil serves as electrical insulation between the winding and tank and acts as a cooling agent. Over time, the oil can become contaminated, which can degrade its insulating…