Answer / guest

In order to be able to calculate the cable size of a power
cable one should know
1)how much load it has to carry.
2)how far or the distance
3)what is the voltage
4)what type of conductor to be used.
5)have the cable manufacturers catalogue
deciding on the type of conductor example aluminum or
copper, armoured ,surface mounted or under ground and
knowing the expected load the voltage drop is calculated and
the most suitable cable size is selected which falls within
the local regulations.
Same goes for the other cables also taking into
consideration all other factors.

wich types of current?

2 Answers  

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6 Answers  

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i want all question & answers of the written exam

1 Answers   Essar, L&T, MES, RRB,

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4 Answers  

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1 Answers  

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11 Answers   Bhel,

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Why in metering Ct for ammeters ct secondary side is grounded for each Ct but not in case of CBCT (Core balance current transformer)..kindly some1 highlights the reason..is it because net flux is zero?

0 Answers  

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what is the difference between mho characteristics and quadrilateral chara in distance protection

1 Answers   Essar,

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