Ferroresonance: Ferroresonance phenomenon can be triggered off through interaction of the system capacitance with a non-linear inductance, when transformer is…
Step Potential Step potential is the step voltage between the feet of a person standing near an energized grounded object.…
Step Potential and Touch Potentials are very important in substations because during ground faults all the ground current returns to…
Majority of electrical substations will be air insulated type. All the electrical equipment live parts will be exposed .All the…
In air blast circuit breakers, compressed air at a pressure of 20-30 kg/cm2 is employed as an arc quenching medium. Air…
Shunt Vs Series Capacitors Advantages Capacitors aid in minimizing losses and helps in reducing operating expenses. Capacitors should be placed…
Why IGBT is very popular nowadays? Lower hate requirements Lower switching losses Smaller snubber circuit requirements What are the different…
What is load curve? The curve drawn between the variations of load on the power station with reference to time…
What are the functions of protective relays To detect the fault and initiate the operation of the circuit breaker to…
This post will discuss about testing SCR - Silicon Controlled Rectifier with thte help of Ohmmeter. The thyristor pin assignment diagram…