Classification of Transmission Lines
April 25, 2016
Over head transmission lines are classified based on the manner in which the capacitance is considered: Short Transmission Lines: Transmission...
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Transformers Questions & Answers Part-1
April 25, 2016
Inrush Currents in Transformers – Causes When a transformer is energized after a short interruption, the transformer may draw high...
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Transformers Questions & Answers Part-2
April 25, 2016
Auto-transformer Advantages: Auto-transformers in comparison with the double winding transformers are generally advantageous of the voltage ratio is favorable from...
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Transformers Questions & Answers Part-3
April 25, 2016
Insulation Materials used in Transformers and Induction Motors Insulation materials used in transformers and motors are classified based on the...
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Transformers Questions & Answers Part-4
April 25, 2016
Where Star (wye) Delta transformer is used in Power system Star-Delta Transformer (Y-Δ ) Primary Y (High Voltage side) and...
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Power System Protection and Relays Questions & Answers
April 25, 2016
What is protective relay? It is an electrical device designed to initiate the isolation of a part of the electrical...
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Why Starting Current of Induction Motor is High
April 25, 2016
Starting Current in Induction Motor: Starting current of induction motor is as high as 5 to 7 times the normal...
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Auto Recloser Circuit Breaker in Power System
April 25, 2016
Most of the faults on over head lines are transient in nature. About 85% to 90% of faults are momentary...
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Current Limiting Reactors and Short Circuit Currents
April 25, 2016
A current limiting reactors is also called as series reactors. It is an inductive coil having large inductive reactance compared...
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Surge Impedance Loading of Transmission Line
April 25, 2016
Loading of any transmission line depends on, Thermal limitation (I2R limitation) Voltage regulation Stability Limitation This is defined as the...
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