A protective relay is basically an electrical device that detects a fault in a power system and initiates the operation…
Introduction Many modern designs of circuit breakers for use at transmission voltages utilize sulphur hexafluoride (SF6) gas both as an…
Switchgear is basically equipment used switch ON or OFF generators, transmission lines, distributors and other equipment under both normal and…
Introduction The process of connecting the metallic frame i.e. non-current part of electrical equipment or some electrical part of the…
As with most of electrical equipment, the key causes of failure of power transformers are either due to electrical failure…
In many high-powered applications, three-phase voltages need to be rectified to give rise to a single DC supply; such rectification…
The typical practice for testing power and distribution transformers is to carry out a comprehensive set of tests at the…
Causes of Ground Loops In Instrumentation We may have situations in instrumentation and control systems, where the sensor and the…
IGBT is a voltage controlled device. It has high input impedance like a MOSFET and low on-state conduction losses like…
Introduction Printed Circuit Boards (PCBs) are the important components in electronic devices that offer mechanical support and electrical connections between…
