Advantages and Disadvantages of Squirrel Cage Induction motor
April 28, 2016
Squirrel Cage Induction Motor: Squireel cage induction motors are widely used in industries. Almost 70% of the industrial motors and drives comes under...
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Advantages of Bundled Conductors in Transmission Lines
April 28, 2016
For transmission of more power for long distances to load centers Extra High Voltage (EHV) transmission is employed. Implementing Extra...
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Difference between Solid Conductor and Stranded Conductor
April 28, 2016
Difference between Solid Conductor and Stranded Conductor Solid Conductor: It consists of single piece of metal wire. It is cheap...
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Corona Ring on Surge Arresters and other EHV equipment
April 28, 2016
Have you ever seen a ring around the Surge Arrester or other EHV equipment? What is the purpose of the Ring around...
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Sulfur Hexafluoride Gas (SF6) Properties
April 28, 2016
Sulfur Hexafluoride Gas (SF6) Properties Heavy, chemically inert, non toxic No poisonous effect on the human body but decomposition products are poisonous Color...
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DC machines and Induction Machines Viva Questions & Answers
April 28, 2016
When DC Generator fails to build up the voltage, what are the reasons? No residual magnetism, reversal of field connections...
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Advantages and Disadvantages of Per Unit System
April 28, 2016
In power system analysis, per unit (pu) system is used to express a physical variable as a fraction of base...
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Why Symmetrical Components Used for Unbalanced faults in Power System
April 28, 2016
Symmetrical Components: Any unbalanced three phase system of currents, voltages or other sinusoidal quantities can be resolved in to three...
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Synchronous Generator Salient Pole vs Non Salient Pole
April 28, 2016
Salient Pole Synchronous Alternator: Salient pole Generators will have large diameter and short axial length Pole shoes cover 2/3 of the pitch...
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Why Armature is placed on Stator for Synchronous machines
April 28, 2016
Operation principle of synchronous machine is quite similar to dc machine. However difference exists in the synchronous machine as there...
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