A HO Asks You - Electrical - Page 2 - DIY Chatroom Home Improvement Forum

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


Thread Tools Display Modes
Old 07-26-2012, 02:51 PM   #16
Join Date: Jul 2008
Location: NW of D.C.
Posts: 5,990
Rewards Points: 2,000

A HO asks you

And thanks to Leon Charles Thevenin, when standing at your panel and "looking upstream" into PoCo, the entire system all the way back to the dam or ConEd can be reduced to an ideal 240v voltage source and series resistor, which makes this a non-ideal voltage source.

At my house, with the transformer right outside, the Thevenin equivalent circuit to a first approximation is 240V in series with 0.022 ohms, which gives me a short circuit current of ~11 kA, and 200A x 0.022 = a 4.4v/1.8% drop, when measured at the panel.

According to KBSparky, you are paying for the likelihood that some of the time you will have 200A service, so my reading would have been different at another time.



Yoyizit is offline   Reply With Quote
The Following User Says Thank You to Yoyizit For This Useful Post:
csab_ (07-26-2012)

Thread Tools
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
Can I buy drawer stops at Home Depot? noone Carpentry 4 11-21-2011 05:39 AM
Help With My Culligan 9" Gold Water softner WGFA Plumbing 8 10-08-2011 11:16 AM
Newbie Asks ? HVACMac HVAC 2 08-13-2011 01:20 PM

Top of Page | View New Posts