ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
by gfretwell. 03/24/18 02:10 AM
Recall Notice Kidde Smoke Alarms
by dougwells. 03/22/18 01:40 PM
Recall notice: Southwire wi-fi wall switches
by sparkyinak. 03/15/18 06:03 PM
Goodman Manufacturing Recalls Modular Blowers
by Admin. 03/13/18 10:40 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 11 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
UL Article on Power Factor #203065
09/07/11 08:57 AM
09/07/11 08:57 AM
Joe Tedesco  Offline OP
Joined: Oct 2000
Posts: 2,749
Boston, Massachusetts USA
UL Report on Power Factor UL Report

Joe Tedesco, NEC Consultant
Work Gear for Electricians and the Trades
Re: UL Article on Power Factor [Re: Joe Tedesco] #203068
09/07/11 02:14 PM
09/07/11 02:14 PM
gfretwell  Online Content

Joined: Jul 2004
Posts: 9,187
I have heard different arguments about this.

One says utility meters only measure true power and dwellings are not paying for bad power factors anyway.

I also understand heavy hitters like A/C compressors and refrigerators have power factor correction built in as part of the energy star certification. I notice when you see the test of a "green plug" or similar device, it is using an unloaded induction motor.

Greg Fretwell


2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman


Member Spotlight
Posts: 28
Joined: February 2011
Show All Member Profiles 
Top Posters(30 Days)
Trumpy 5
Admin 4
Popular Topics(Views)
244,895 Are you busy
182,008 Re: Forum
172,041 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.015s Queries: 15 (0.003s) Memory: 0.9420 MB (Peak: 1.0604 MB) Zlib enabled. Server Time: 2018-03-25 03:20:34 UTC