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Transformer secondary side neutral is earthed.if unbalanced load condition residual return current only goes to earth it's a safest one actually.In basic ground is the very low impedance path compare to your earth rod.current always choose low resistive path.so it's not possible to return feed current flow from ground to equipment.

Is phenomenon of resonance is harmfull fr the machine? if not or if yes please explain it?

0 Answers   Bhel,

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critical losses of transformer

3 Answers   EEEC,

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Scott connection is used for A 3-phase to 2-phase conversion B to achieve higher effciency C to save copper D to reduce harmonics

0 Answers  

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wwht is wave trap used in ht line

4 Answers  

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HOW EFFICIENTLY LOAD IS SHARED BETWEEN ALTERNATORS

1 Answers  

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How to select the rating of a CT used for REF protection. The rating can be of equal rating of Phase current or neutral current rating

2 Answers   UltraTech,

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How to Calculate the current drain in the battery (1.4V) for the 2mins time period?

7 Answers  

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what is the definition of Nominal current or voltage

1 Answers  

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What is current & voltage ? Voltage perform at any load without current or not?

0 Answers  

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AVR is used for the Voltage regulation of the Generator using the feedback signal by exciting the field winding of the generator.But how the field winding will be excited & using what?

2 Answers   Alstom,

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IF we have 500kva transformer & know the current on HT & LT side, how can we consider for its breaker?

5 Answers  

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in railways why we use the power in 10,20 30kv,why not in the multiple of 11kv

2 Answers  

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