What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side

0 Answers   CEB,

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Pls anyone explain me the basics of wiring a house?

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What is the difference between the transmission line and distribution line?

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1.What is effect of capitance in transmission line? 2. After raising the voltage at receiving end what will be happen? 3.how we nullify or control the raised voltage at receiving end?

3 Answers   NTPC,

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why starting current is high and resistance is almost 0 during the starting of motor dc motor...?

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Why do we mix soda with water in LRS?

1 Answers  

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how a circuit breakers work at fault condition .plz give a specified answer.

1 Answers   Regen Powertech,

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What is self exciting?

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If the soil resistivity is more large, how can we earthing our 11 k.v. transmission line?

2 Answers  

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What is the difference between line Distance protection and Line Earth Fault Protection?

1 Answers  

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if we have a industrial load of 400 kilowatts with 415 volt AC then how much total harmonic distortion (thd%) should be acceptable for steady power system.

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Explain how you intend to work under pressure to meet up with deadline target?

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