Why r used of cable 50sq.mm and above size cable in 3.5 core. And below size in 4 core ? any technical reason please explain it

2 Answers  

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What is the difference between single phase, 2phase, and 3 phase motors?

2 Answers  

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how will protect transformer agint overcurrent protection

6 Answers   MPSEB,

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What is CCT (Correlated Color Temperature) ?

0 Answers  

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How to identify the whether its an isolator or Breaker in MDB

5 Answers  

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We have one Energy meter for Measuring the voltage,current,power,energy(KWH,KVARH,KVAH) & power factor.The problem is that the meter does not show whether the PF is lagging or leading.So i want to know that is there any way or calculation to find out that whether the PF sign (lagging or leading) depending upon the above mentioned parameters?

4 Answers  

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What is the correct procedure to shutdown VCB in 11kv substation.safety and work procedure

3 Answers   EGA,

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One 200 V, 100 W bulb is connected in series with primary of a 200 V, 10 kVA transformer. If its secondary is kept open circuited, then the bulb would have (1) Full brightness (2) Poor brightness (3) A little less than full brightness (4) More than full brightness...explain

2 Answers  

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Which type of control system is expensive — closed loop or open loop?

1 Answers   GE,

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How the main bus bar rating of 400kV switchyard with one and half breaker scheme is calculated.

2 Answers  

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CTs Ratio

2 Answers  

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How do you select a cable size(Cu & Al) for a particular load?

2 Answers  

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