Answer / msalam_shahin

The phenomenon of generation of signal which have multiple
times of frequency of supply signal is known as Harmonics
of that applied signal....

Normally harmonics may generates in diffrent way....
It effects the power quality of electric signal on line ...

why Y CONNECTION IS BETTER INTERMS OF EFFICIENCY AND P.F FOR A LAOD LESS THAN 40% AND WHY AFTER DELTA IS BETTER FOR > 40%

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actually i can't understand what is 3dB ? and it's really not clear to me.please any one let it me be cleared.

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dear sir/madam i want to get some knowledge about RRB EXAMINATION(section engineer) 1- what is minimum cut off 2- wht portion is major portion . 3- can any body provide Sample paper. thanks & regards ashish

0 Answers   RRB,

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What is meant by line losses, how do you prevent the losses?

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1. What is the exact formula for one weber? for example,(one ampere = one coulomb electron of electrons crossing a point of conductor at one second. i.e, 1A=1Q/1sec)

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How to Convert horsepower to kva? what is the three phase formula? explain me if u can Example..i have 50Hp Moter how can i convert in kva tell me formula three phases Rehan Smileavail@msn.com

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Define liftable weight of a transformer? Does the total weight of transformer include oil weight?

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how to operate and maintenance of 1500 kva diesel generator set

0 Answers   Supertech,

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how the specific fuel consumption of 320 kva deisel genarator set (explain with formulas please)?

2 Answers   RRB,

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What is the diffrece between ACB & MCCB

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if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer

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what is meant by differential protection of transformer

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