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Associate

Join Date: Mar 2014
Location: Mumbai, India
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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.

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Guru
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#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?

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Guru

Join Date: Aug 2007
Location: Earth - I think.
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#3
In reply to #1

Re: Different types of Factors in LV System

03/07/2017 8:44 AM

Finals week?

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Member

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#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 ..........................

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Guru

Join Date: Mar 2007
Location: at the beach in Florida
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#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?

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Guru
New Zealand - Member - Kiwi Popular Science - Weaponology - New Member Engineering Fields - Power Engineering - New Member Engineering Fields - Electrical Engineering - New Member

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#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.

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Guru

Join Date: Apr 2007
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#6

Re: Different types of Factors in LV System

03/08/2017 3:53 AM

Is this is your homework???

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#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.

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