What is the Difference Between choke & ballast

3 Answers   ABB, ICS Integrated Computer Solutions,

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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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why some transmission lines have 7 wires n why some have 3 n 4??

3 Answers  

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what is NGR in generator?

4 Answers  

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What is the function of probe in cro?

0 Answers  

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Define liftable weight of a transformer? Does the total weight of transformer include oil weight?

0 Answers  

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What is the difference between relays and contactor construction wise?

0 Answers  

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what is T P N bus bar

1 Answers  

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what is the method of electric earth for the protection of low voltage electric equipment

1 Answers   MacLellan, Shiva Corporation, Siemens,

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Why star point of star connected motor is not grounded? Why alternator is operated at lagging power factor?

3 Answers   TCL,

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what is the different types of cable lugs?

2 Answers   Green Power, Kum Yang,

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Type of cable insulation?

3 Answers   Essar,

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