Answer / aravind

Area=3.14*r^2

r=8.74mm

Answer / rajesh palande

When we say that cable rating is 240 sq mm the user knows
that the area of the conductor is 240 square mm. Hence user
can determine the amount of current that cable can carry.
Calculate the dimension of circle which has a area of 240
sq mm and you get the answere about dia size.

Answer / mateen

When you got the cross section aria then you can calculate
the current currying ampere by knowing the materials
Resistance

Answer / sumit tomar

it is bcoj the cable diameter is decided wby the amount of
current it hav to bear.....thus the conductor is choosen
according to its dia size...

During a temperature rise test of a bus duct, it is fed with 415 volts at 2000 amperes. Why dont we get an electric shock if we touch the bus bars?

7 Answers   ABB, SDBL,

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what is the diff. b/w restricted earth fault relay & standby earthfault relay and where they are used?

4 Answers   KSK Energy, Reliance,

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A generating system will have a total capacity of 300 MW. Find the probable forced outage when the capacity is supplied by two 150 MW units. The operating probability of all units is P=0.98 and forced outage probability rate Q =0.02 .

0 Answers   BUET, VECL,

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When the DG is running at the time we can connect to capacitor banK? why it is required or not

1 Answers  

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when current lags behind voltage how does it affect the circuit.In other words what is the significance of lagging current?

3 Answers  

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Due to velocity saturation, MOSFET reaches saturation a.Before Pinch off b. After pinch off c. At Q point d. Before Q point e. After Q point

1 Answers  

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What is the use of core in the transformer?

19 Answers  

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how to find out cable size if load is 2800 watts, 230 volts AC supply and load distance is 1800 meters

0 Answers  

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wht is the difference between volatge and wattage ? how can it be converted ? (like 15w = 6v ) like tht... ? actually what tht means ?

3 Answers  

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What is power factor?How to improve power factor

2 Answers   Tech Mahindra,

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How to find the length of a Xlpe cable required to transmit 3mva load at 22kv.

1 Answers  

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Comment on the working principle of operation of a single-phase transformer.

0 Answers  

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