Answer / appana ravi kumar

if we are using ONAF transformer , the winding temperature
of the transformer can be controlled , so the transformer
impedence also increase . transformer can be run above the
full load.

Answer / guest

Above Transformer with same electrical parameter will have
higher capacity when its cooling system provided with ONAF
upon ONAN cooling System. As well as its %Impedence will be
also increased as accordingly.

why open-delta core of 11kv Potential Transformer is 11000v/1.732/110/3?

1 Answers  

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After fault clearing in Tr line, whether the Metering core of CT is comes to normal condition from saturation region & its works as a normal condition?

1 Answers  

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What is the capacity of the Fastners 12mm?

0 Answers   Sobha Developers,

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What will happen if the rotor of an induction motor is fed from a 3 phase supply and the stator short circuited ?

4 Answers  

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practically What is power factor

6 Answers  

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howmuch current can carry the 2.5Sqmm copper cable?

42 Answers  

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why the transformer neutral give to the earth ?

2 Answers   Jindal, JLL,

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I am working as maintenance engg. in electrical but i want to do carrier in electrical drawing.Tell me about that.

2 Answers  

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HOW TO SET THE EARTH FAULT SETTINGS IN ACB????????????

0 Answers   General Electric,

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Which has more losses, AC or DC??

4 Answers   Infosys, TATA,

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In the solution of load flow eqation, Newton raphson method is superior to the gauss siedal method because (a)the time taken to perform one iteration in the NR method is less when compared to GS method (b)the number of iterations required in the NR method is more compared to that in the GS method (c)the number of iterations required is dependant on the size of the system in the NR method (d)convergence characteristics of the NR mehod are not affected by the selection of the slack bus

1 Answers  

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dear friends, we are use 130 hp load run with 0.98 power factor ( 38KVAR capacitor connected ). if we need improve the the power factor to 1 (unity). how much kvar capacitor to be add. have any formula? please share with me.

3 Answers   Reliance,

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