Answer / lokeshraj

A SYMMETRICAL SINGLE PHASE DISTRIBUTION OF THREE PHASE
POWER SUPPLY IS NOT PERFACTLY SYMMETRICAL. IT IS TOUGH TO
MAKE BALANCE THE LOAD ON A THREE PHASE DISTRIBUTION LINE.
THUS A CURRENT FLOWS THROUGH THE NEUTRAL LINE, THIS IS THE
REASON OF HEATING OF NEUTRAL LINE....

Answer / rajeev goyal

Unbalancing of system i.e. in 3 phase current unbalance due
to improper load distribution.

Amoung all classes of electric machines, why the transformer uses oil as one medium of cooling?

4 Answers  

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what is high and low cut off voltage of BB and DG at SPS????????

0 Answers  

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why sec of ct should be kept shorted

2 Answers   Enercon,

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Why a dc generator gives result during two different condition,- 1)separately exited gen.- Eg=110 V, field current=0.25 A. 2) self exited gen.- Eg=30 V, field current=0.025 A.

1 Answers  

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what is interpose vt where it is used and y it is used?

0 Answers  

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what is resticted earth fault protection ? how did it protect & work in power transformer

3 Answers  

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Draw the wave shape of armature current in a generator subjected to a sudden three phase short- circuit at its terminals. Define various reactance of generator from this wave shape.

0 Answers   VECL,

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What is the use of oil in transformers?

0 Answers  

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WHY AIR COMPRESOR IS STARTED UNLOADED

3 Answers  

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in india why 50 hz and 220 volt taken as standard rating for equipments whereas in US 100hz and 110v is consided as standard rating.is this method save power.

5 Answers   Wipro,

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In iduction motors the current is higher than normal for both the cases when the voltage appllied is more than the rated as well as less than the rated, why?

2 Answers  

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What is differential relay? How it operates?

1 Answers  

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