Over head transmission lines are classified based on the manner in which the capacitance is considered: Short Transmission Lines: Transmission…
Inrush Currents in Transformers - Causes When a transformer is energized after a short interruption, the transformer may draw high…
Auto-transformer Advantages: Auto-transformers in comparison with the double winding transformers are generally advantageous of the voltage ratio is favorable from…
Insulation Materials used in Transformers and Induction Motors Insulation materials used in transformers and motors are classified based on the…
Where Star (wye) Delta transformer is used in Power system Star-Delta Transformer (Y-Δ ) Primary Y (High Voltage side) and…
What is protective relay? It is an electrical device designed to initiate the isolation of a part of the electrical…
Starting Current in Induction Motor: Starting current of induction motor is as high as 5 to 7 times the normal…
Most of the faults on over head lines are transient in nature. About 85% to 90% of faults are momentary…
A current limiting reactors is also called as series reactors. It is an inductive coil having large inductive reactance compared…
Loading of any transmission line depends on, Thermal limitation (I2R limitation) Voltage regulation Stability Limitation This is defined as the…