Answer / uzair bin khalid

when we switch on the switch and load is not connected at
home, no is electricity wasted bcz loop is not completed.

Thumb rule for capacitor bank calculation

1 Answers  

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what is d main difference between KVA and KWA

2 Answers   Charoen Pokphand,

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i have three phase 25kva transformer but there is two phase line how can i connect to the two phase line?

2 Answers  

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diff between UPS and inverter?

2 Answers  

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what is the relation between knowing of the distance between power transformer and the capacitor feeder in case of parallel operation

0 Answers  

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My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I -    is the value of AC fault current. t -    is the operating time of disconnecting device in seconds. K –  is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.

0 Answers   Premier,

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1.what type of oil used in tranformer. 2.oil vesocity. 3.oil gauge. 4.witch time oil filterring & how much temperature maintaned.

9 Answers   NTPC, Reliance,

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The initial current is very large at the time of starting for almost all DC motors. SO WE USE STARTER FOR A SAFE STARTING but at our homes we don’t see any starters in our coolers, motors.WHY DON’T WE NEED STARTERS FOR THESE APPLIANCES?

1 Answers  

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What is the resistance of human body from head to toe?

10 Answers   Bhel, Getco, Infosys,

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what is the interrelation between voltage current torgue speed and magnetic flux in case of different types of electric motors

0 Answers  

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Why we can not get 100% efficiency from a Gas Generator?

1 Answers  

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Between Turbo alternator and Hydro alternator which one is more difficult to cool and why?

2 Answers  

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