how can i get the formula to find out the cable size if i know the load of main fuse protection.

0 Answers  

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plz tell me about BACK emf and how it generates?

2 Answers  

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What was your role in the silicon evaluation/product ramp? What tools did you use?

0 Answers   Intel,

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If I need to purchase a step-down transformer (from three phase 33kV 50Hz to 400/230V), what additional information do I need from the main supply power line?

1 Answers   MahaDiscom,

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why do we use spark detector inside the slip ring brush compartment 0ona slip ring induction motor?

0 Answers  

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Mr. mohh sahid m not satisfied for ur answer to the que weather the size of transformer increases or decreases withchange in fr for more detail go to the answer given by me

0 Answers   Sail,

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What is the meaning of TRI Vector meter?

7 Answers   ABB, Excel Power Switchgear,

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What is the value of system voltage?

2 Answers   Bhel,

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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 DC is not generated instead of AC?

4 Answers  

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How to connect frequency meter in metering circuit?(single phase and three phase frequency meter)

3 Answers  

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How to select the rating of the Transformer?

2 Answers  

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