Advantage and Disadvantage of Corona

Corona has many advantages and disadvantages. Therefore for designing a transmission line, care must be taken to have a balance between the advantage and disadvantage of Corona. Advantage of Corona Following are some of the advantage of corona: The effective diameter of power conductor increases...
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Principle of Automatic Voltage Regulator

Automatic Voltage Regulator (AVR):  Automatic Voltage Regulator is a device which maintains the Generator output terminal voltage. To be more accurate, AVR is a controller which always compares the Generator output terminal voltage Vt with the set reference voltage Vrefand as per the error signal...
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Class-A, Class-B and Class-C Tripping Classification of Generator

Generator, Generator Transformer and Unit Transformer protections have been classified into Class-A, Class-B and Class-C. Class-A tripping is further classified into Class-A1 and Class-A2. In this post we will discuss each type of tripping classes and their significance. Picture taken from http://universalerectors.com/steam_turbine_generator.html Basis of Tripping Classification:...
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