Kilo To Volt Help - Electrical - DIY Chatroom Home Improvement Forum

 DIY Chatroom Home Improvement Forum Kilo to Volt help
 Register Blogs Articles Rewards Search Today's Posts Mark Forums Read

05-21-2012, 05:01 PM   #1
Member

Join Date: Sep 2011
Posts: 30
Rewards Points: 25

## Kilo to Volt help

I understand how to convert say Volts to kilo Volts and kilo Volts to Volts.

If you see 5 kV before you can do any kind of Formula you have to write out the right Value first.

So if I see 5. kV I move the Point three places to the Right to make it Thousand
5,000 Volts I get this.

Now in the Book I have it uses the same example to show how to convert Volts to kiloVolts.

If you see 5,000 Volts you move the Point three places to the Left so you will write
.5 kV I get this.

But if I see 5,000 Volts this is 5 thousand whole Volts and if I want to write it out as kV I just write 5 kV.

But if I write it out as .5 kV this is a Fraction.

So am I right that if I see 5,000 Volts and I want to write it out as kV I move the Point three places to the Left and when I write it out I do not put the Point I just write it like this 5 kV??

05-21-2012, 05:34 PM   #2
Civil Engineer

Join Date: Mar 2009
Location: Boston
Posts: 5,638
Rewards Points: 4,856

You are confused. To convert kilovolts to volts, multiply by 1000. To convert volts to kilovolts, divide by 1000. In your example, you got the decimal point in the wrong place. 5000 volts is 5 kilovolts. Thinking about moving the decimal point three places is the way it is taught in perhaps third grade, once you get into high school it is better to understand that kilo means 1000.

 05-21-2012, 07:17 PM #3 Member   Join Date: Jun 2010 Location: se Posts: 1,597 Rewards Points: 1,062 Shoulda listened to Gerry Ford in the 70's and converted to metric- always helps with jargin like Kilo, milli, centi....... I wish they would can the old archaic English inch-pound-yard-gallon-quart system. Sheesh. __________________ Alexander Pope: [a little knowledge can be a dangerous thing]

 05-21-2012, 08:03 PM #4 Member     Join Date: Mar 2005 Location: Welland, Ontario Posts: 13,268 Rewards Points: 13,332 Blog Entries: 11 5Kv is 5000 volts. .5Kv is 500 volts. It legitimate to write .5 Kv if that suits you.
05-21-2012, 10:19 PM   #5
Member

Join Date: Sep 2011
Posts: 30
Rewards Points: 25

## thanks

Thanks got it

 05-21-2012, 11:38 PM #6 JOATMON     Join Date: Aug 2011 Location: S. California Posts: 11,406 Rewards Points: 1,968 Blog Entries: 2 Easier to work with jouls...... __________________ Even if you are on the right track, you will still get run over if you just sit there. My 2-Story Addition Build in Progress Link ... My Garage Build Link and My Jeep Build Link
 05-24-2012, 08:52 PM #7 Member   Join Date: Jul 2008 Location: NW of D.C. Posts: 5,990 Rewards Points: 2,000 Dimensional Analysis is hard for a lot of people http://www.chem.tamu.edu/class/fyp/mathrev/mr-da.html There are probably other links that explain this idea better. When you're good at it you can convert, for example, miles per hour to furlongs per fortnight or to microns per century. http://www.onlineconversion.com/ Last edited by Yoyizit; 05-24-2012 at 08:56 PM.
 05-25-2012, 08:07 AM #8 Member     Join Date: Mar 2005 Location: Welland, Ontario Posts: 13,268 Rewards Points: 13,332 Blog Entries: 11 One good thing about the metric system is the standard. Kilo is always 1000 kilovolt is 1000 volts kilowatt is 1000 watts(not really metric) kilometer is 1000 meters kilogram (common referred to as a kilo) is 1000 grams
05-25-2012, 03:34 PM   #9
Member

Join Date: Sep 2011
Posts: 30
Rewards Points: 25

## Thanks but

I think I have it if I see
5 mV I would say .005 Volt and if I see 5 kV I would say
5,000 Volts Right?

 05-25-2012, 04:54 PM #10 Member     Join Date: Mar 2005 Location: Welland, Ontario Posts: 13,268 Rewards Points: 13,332 Blog Entries: 11 yes milli is divide by 1000, kilo is multiply by 1000.
05-25-2012, 10:30 PM   #11
Member

Join Date: Sep 2011
Posts: 30
Rewards Points: 25

## thanks but

And one more thing if a D BAT. has 1.5 Volts at 4,000 mA this meens it can give 4,000 milli Amp for one Hour right?

05-26-2012, 01:14 AM   #12
Semi-Pro Electro-Geek

Join Date: Jul 2009
Location: Arizona, USA
Posts: 3,035
Rewards Points: 2,970

Quote:
 Originally Posted by biferi And one more thing if a D BAT. has 1.5 Volts at 4,000 mA this meens it can give 4,000 milli Amp for one Hour right?
Sort of, but not really. It could give 40mA for 100 hours for sure. But at high discharge rates batteries become inefficient. So it might give 400mA for 5-6 hours instead of the expected 10. And if you could even get 4000mA out of it, it would last much less than an hour.

05-26-2012, 07:13 AM   #13
Member

Join Date: Jul 2008
Location: NW of D.C.
Posts: 5,990
Rewards Points: 2,000

Quote:
 Originally Posted by biferi And one more thing if a D BAT. has 1.5 Volts at 4,000 mA this meens it can give 4,000 milli Amp for one Hour right?
Usually they are tested at a 20 hour rate, so 4000/20 = 200 mA for 20 hours = 4 A-h.
If you take 40 hrs to discharge it you might get more than 4 A-h capacity.

And with lead acid batteries there is the Peukert Effect.

 Thread Tools Display Modes Linear Mode

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is OffTrackbacks are Off Pingbacks are Off Refbacks are Off Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post johnr9q Electrical 20 11-21-2010 01:12 PM covenant Electrical 7 11-09-2010 06:07 PM fortop Electrical 27 06-26-2010 11:37 AM wantsomegetsome Electrical 9 05-04-2009 10:49 AM SURFBUG Appliances 6 10-14-2008 09:41 PM

Top of Page | View New Posts