When calculation of fault current and fault Kva is to be done,why always we use per unit value and why we consider the base kva?

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What is main purpose of chock coil and starter in florescent tube ?

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why using 3 phase

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what is the necessary of using inductance property in transmission lines even through resistance is used to opposes the high current flows in that?????

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What is Percentage impedence of a transformer? why it is expressed at a percentage? what is the importance of percentage impedence in case of a transformer?

0 Answers   Haldia,

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Which capacitor is preferred for high voltage and frequency?

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Why i receive the GCU fault in my DG Sychronization panel . what all the factors considered for this fault .

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If one d.g. is unable to take full load of system, then second d.g. will take care of partly Load.for this condition RPM of both DG set should be equal.By using Synchronization panel RPM of dg sets are match, is it true?

1 Answers  

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draw 3 phase rectifier diagram

0 Answers   Equate,

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why it is in star to delta form of Synchrounus generator and delta to star form of Generator Transformer (or step up transformer)

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In a generator (Synchronous) does the rotor speed (frequency) corresponds to the speed of the water (in hydro). does the torque on the turbine relate to the flow of water?

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How Can we calculate current carrieng capacity of Copper Bus-Bars and Alluminium Bus-bar

2 Answers  

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