Answer / sheikh

In case of cable testing there is no PD test. although cable at the time of manufacturing or
after manufacturing passing in test of voltage grade like a cable nominally use on 220V ang it,s permissible voltage grade may be 600 V. it means this cable cannot use over to 600voltage.

Please let me if star point(Nutral) of Delta/ Strar transformer, in 4wire (TPN+E) is tobe gruonded seperatly,inaddition to LV Panel earthing????

1 Answers  

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How RTCC panel is working and give single line diagram for RTCC with transformer?

0 Answers   AB Associates,

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What happen in ups if phase reverse?

0 Answers  

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which are the criterias needed to select the kind of neutral earthing(solid earthing,resistance earthing,etc.) at various voltage levels in electrical distribution?

0 Answers  

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what are the safety measures of induction motor?

3 Answers  

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To check the earth condition (In plug points); the voltage between earth and Neutral is in below 5 volts. Is it correct

6 Answers  

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wat are the transmission losses.... how can it be compensated....... wat s power system.......

1 Answers   NPC, NTPC, TCS,

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We say that if voltage in a power system is increased,for a constant power the current will decrease (by P=VI). isn't this in disagreement with the ohms law(I propotional V;resistant const.).Since the resistance of transmission lines remains constant,shouldn't inc in voltage cause inc in current across the transmission line? I have read many articles across the net but still couldn't this figure this out. :( Guyz plz assist me with dis..:)..

4 Answers  

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what is fuction static switch in ups and tell me use parts name and fucion

3 Answers   Dalkia,

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If MF is 30000, pt ratio is 110 kV/110 v then what is the ct ratio?

2 Answers  

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Is it possible to increasing the real power generation by reducing the reactive power in power generation plants

3 Answers  

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What is the effect if power factor is above 1 or unity.

15 Answers   NTS,

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