Answer Posted / r k choudhary

first we have to find out the ampere then as per cable
sizing chart select the cable but one thing always kept in
mind that for safe working (losses ,voltage drop,efficiency
of motor) consider somthing extra size of cable.

how line turns ratio changes in 3 phase with change in connection

1963

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do you have some of interview Questions in power and genrator section in general whith answers

2173

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For a three phase induction motor, what will be the effect on motor if the neutral of the system is shifted to say 20 deg.?

1808

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what happens if dc supply is given and the remedies for it.

1788

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Is neutral transformer can be called as control transformer?

1955

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Sir 33kva 2 transformer load 900 amp calc 1800 amp mana jayega

1813

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In siemens S7-300 PLC, what is function and function block ? What is the difference between them ? When to use function and when to use function block ?

2073

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1) Explain why we don't link the two earthing system ht and mv on a pole mounted transformer sub-station.

1775

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What are the causes of having an rmu explode after installation? And how do u treat the bushings of an rmu?

2484

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what is mean by ideal infinite bus? why it is required to consider in fault short circuit calculations?

2690

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Define demand factor?

1084

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Actually I have a doubt on neutral and earth.we use Ac power without taking neutral by connecting to earth,but at that time does it affects on efficiency of any electrical components or no? If yes how?

1372

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WHAT IS AIR GAP VALUE IN MM FOR A 11KV BUSHING OF 11KV/440V DISTRIBUTION TRANSFORMER. AND AIR GAP VALUE OF 25 KV BUSHING OF AT TRANSFORMER OF 25 KV TRACTION. WHAT IS THE CALCULATION FOR THE AIR GAP PERMITTED FOR BUSHINGS AT DIFFERENT VOLTAGES.

3463

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CBCT selection

2264

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3Cx240 & 3Cx300 sqmm Al. cable from lv side. What is the calculation for this cable??

1381

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