CR4® - The Engineer's Place for News and Discussion®

 Previous in Forum: Number of Holes for Busbar / Cable Termination on Product Next in Forum: Measure of Power Line Induced Voltage
Associate

Join Date: Mar 2014
Location: Mumbai, India
Posts: 25

# Different Types Of Factors in LV System

03/07/2017 4:51 AM

What is the practical significance of Crest Factor, Form Factor & Peak Factor? Thanks in Advance.

Interested in this topic? By joining CR4 you can "subscribe" to

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, rate them!
Guru

Join Date: May 2006
Location: Reading, Berkshire, UK. Going under cover.
Posts: 9599
#1

### Re: Different types of Factors in LV System

03/07/2017 5:26 AM

Wow! Six questions in a row! Have you thought of using a search engine?

__________________
"Love justice, you who rule the world" - Dante Alighieri
Off Topic (Score 3)
Guru

Join Date: Aug 2007
Location: Earth - I think.
Posts: 2059
#3

### Re: Different types of Factors in LV System

03/07/2017 8:44 AM

Finals week?

__________________
TANSTAAFL (If you don't know what that means, Google it - yourself)
Score 2 for Off Topic
Member

Join Date: Mar 2017
Posts: 9
#2

### Re: Different types of Factors in LV System

03/07/2017 7:14 AM

The practical significance of Crest Factor is in the selection of power supplies (sources). Crest factor is the ratio of Peak Value to Rms Value in AC. Crest factor for a pure sinusoidal wave is 1.414 (i e: under root 2). But when its not a sinusoidal wave, The peak value may change even for same RMS value. Power supplies may not be able to sustain that "Peak" Value.

For example a 48VA, 24V, power supply can deliver 2Arms (2*1.414A Peak) on continuous basis. But if crest factor is high (Wave is not sinusoidal) it may not be able to deliver those 2A and can burn because of high peaks of current.

For other two factors i give chance to others ..........................

Guru

Join Date: Mar 2007
Location: at the beach in Florida
Posts: 20153
#4

### Re: Different types of Factors in LV System

03/07/2017 1:02 PM

Why don't you just post the entire test in one shot, then we can not answer them all at once....can't you even guess at the answers?

__________________
Life is like riding a bicycle. To keep your balance you must keep moving. A.E.
Guru

Join Date: Sep 2006
Location: Auckland, New Zealand
Posts: 8566
#5

### Re: Different types of Factors in LV System

03/07/2017 1:35 PM

I have got to ask, are you trying to design an LV switchgear product yourself for sale or are these just homework or test questions (because that is what they look like)?

Come on now, be honest.

__________________
Guru

Join Date: Apr 2007
Posts: 559
#6

### Re: Different types of Factors in LV System

03/08/2017 3:53 AM

__________________
Management is just like a bunch of Monkey sitting on a tall tree. Some climb to the highest branch and some at the lowest branch. The highest Monkey look down and see a lot of happy faces but the lower Monkey looks up and see nothing but all the....
Anonymous Poster #1
#7

### Re: Different Types Of Factors in LV System

04/04/2017 6:16 PM

lol this forum never fails to amaze me.

The quantity of total assholes on this forum i think exceeds the sum of all assholes i have ever met.

So someone asks a direct professional question and its automatically a homework question or test?

There is just no chance in hell someone might just be asking for the hell of asking or for something job related.

Off Topic (Score 3)
Interested in this topic? By joining CR4 you can "subscribe" to