Answer / hpl

Voltage regulator working principle depend on feedback
circuit.ie output requirement. it maybe static voltage
regulator or by auto transformer

HOW TO CALCULATE THE WIRE SIZE FOR THE GIVEN LOAD?

5 Answers  

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Explain what is CBCT.

1 Answers  

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How do apply electrical 'c'license......pls advice

0 Answers  

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if we convert kva into Ampers,which one formula use by us,pls tell me?

7 Answers   ABB,

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What do you mean by Stimulastion Test in Diesel Genarator / Why & when it's conducted ?

0 Answers   JLL,

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How each of the following losses occur in d.c machines (i) copper (2)core (3) windage (4)friction please help me

0 Answers  

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why Power transmssion voltages are as 11kV,33kV,66kV,220kV and so on only?

2 Answers  

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Dear Friends, I have a 500KVA transformer supplying whole factory having 3 phase and single phase mixed loads. Power room has ammeters connected via CTs for individual phase. Now I know that readings shown on meter for each phase say R,Y and B are line currents. But when I want to know the total on transformer do I need to add the currents of all three phases readings shown on meter or value for anyone phase will give me the correct power load on transformer for that point of time. 2. If ammeter shows unbalanced readings for R,Y, B phases say 150, 250 and 300 respectively so can I assume that 150A i.e average of 3 will be the 3phase load currents and remaining will be 1phase currents. Please clarify my doubt.

4 Answers  

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Dear Friends, Need your help for connecting APFC panel, Quotation : I have 2 No’s 1000 KVA Transformers, both transformers are having separate APFC panels, ( Tr-1,400KVAR, TR-2,450 KVAR) Now I want to stop One transformer, present load is 650Amps, Max, So One transformer is enough, I have switched OFF TR-1, but PF is not maintaining properly, its 0.5, So now I want to connect TR-2 APFC also in TR-1 Loads, Can any one answer for my Quotation with drawing, how to connect TR-2 APFC panel in TR-1 Loads,

4 Answers   L&T,

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what is slip rings in an induction motor&what is it's work.

4 Answers  

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why doesnt the back emf hold the speed of unloaded series motor?

1 Answers  

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why don't we use the generator as a motor? and what will happen?

0 Answers  

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