What is the temperature and cooling aspects of dc motor
This is about the recent problem that we have faced in our project site. We have 6/7.5 MVA. 66/11kV three phase star - star power transformer. The neutral was solidly connected to the earthing mat. But because of high resistance of earthing mat (130 ohm on LV and 180 ohm on HV), one day LV side neutral earthing conductor melted and we had a huge damage. Can any one plz tell me what might happen when we connect power transformer neutral to the earthing mat which has high resistance (>100 ohm ) ?????
In three pin socket normally three pin in between three pins earthing point is more thickness why?
How to decide the input and output circuit breaker for a 1600kva transformer.Is there any calculation is involved.
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why ct is testing using dc.. y cant we use AC insted of dc on POLARITY TEST.
in which direction real power and reactive power flow and why???????
Is better to supply the voltage for static exciter from the auxiliary power source or from the SG terminals? And why?
what is transformer
What is the difference between voltage transformer and potential transformer?
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Please let me if star point(Nutral) of Delta/ Strar transformer, in 4wire (TPN+E) is tobe gruonded seperatly,inaddition to LV Panel earthing????
What is electrical earthing?
What is the difference between lubricating oil and insulating Oil?