Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 09-21-2011, 06:48 PM   #16
Electrical Contractor
 
kbsparky's Avatar
 
Join Date: Sep 2008
Location: Delmarva
Posts: 3,368
Rewards Points: 0
Share |
Default

Just a general question on 220VAC


Here is the same picture, with values corrected:
Attached Thumbnails
Just a general question on 220VAC-acpowerprimer.jpg  

__________________
-KB

Life is uncertain -- eat dessert first!!
kbsparky is offline   Reply With Quote
Old 09-21-2011, 08:45 PM   #17
A "Handy Husband"
 
rjniles's Avatar
 
Join Date: Feb 2007
Location: South Carolina Low Country
Posts: 4,033
Rewards Points: 6
Default

Just a general question on 220VAC


In the above sine wave sketch, the positive and negative peaks should be approx.170 volts and the peak to peak approx. 340 volts. 120 and 240 are the RMS of the peak voltages. RMS can be thought of as the DC equivalent of the peak wave. RMS = .732 x peak voltage
__________________
Location:
Coastal South Carolina
rjniles is online now   Reply With Quote
Old 09-21-2011, 09:14 PM   #18
I=E/R
 
a7ecorsair's Avatar
 
Join Date: May 2010
Location: Minnesota
Posts: 2,052
Rewards Points: 0
Default

Just a general question on 220VAC


Quote:
Originally Posted by rjniles View Post
In the above sine wave sketch, the positive and negative peaks should be approx.170 volts and the peak to peak approx. 340 volts. 120 and 240 are the RMS of the peak voltages. RMS can be thought of as the DC equivalent of the peak wave. RMS = .732 x peak voltage
Oh stop being so picky. A graph can be scaled to RMS and nobody said it was an O'scope display. I don't see anything showing it is 16.7ms between peaks.....
a7ecorsair is offline   Reply With Quote
Old 09-21-2011, 10:40 PM   #19
JOATMON
 
ddawg16's Avatar
 
Join Date: Aug 2011
Location: S. California
Posts: 7,258
Rewards Points: 40
Default

Just a general question on 220VAC


Quote:
Originally Posted by a7ecorsair View Post
Oh stop being so picky. A graph can be scaled to RMS and nobody said it was an O'scope display. I don't see anything showing it is 16.7ms between peaks.....
Well.....actually, it's 16.6666666666666666666667 ms...

And the RMS value is only if it is a true sine wave....toss any any harmonics and the RMS voltage/peak can be all over the place.....

Remember CVT's? Ever see the waveform that comes out of those things? Yuk......

__________________
"The dream is free but the hustle is sold separately."

My 2-Story Addition Build in Progress Link ... My Garage Build Link and My Jeep Build Link
ddawg16 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Just a General Question Balloon Vs. Platform Construction Evil Scotsman Building & Construction 5 11-10-2010 09:12 PM
General Breaker question fixittech Electrical 7 10-18-2010 02:16 PM
General question about screws/bolts floja General DIY Discussions 7 11-10-2008 08:22 PM
Basement Renovation Question KUIPORNG Remodeling 234 08-26-2008 08:19 AM
hrv question indep HVAC 3 07-17-2008 10:39 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.