ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
How's all our Non-US folks doing?
by djk - 07/23/21 09:13 PM
Switched Receptacles -Top or Bottom?
by donles - 07/23/21 10:51 AM
Do You Travel?
by Bill Addiss - 07/20/21 04:26 PM
Backup Generator Done Right
by timmp - 07/18/21 12:20 PM
Square D "All-In-One" Panelboard
by Rachel - 07/16/21 04:57 AM
New in the Gallery:
OOPSIE!
OOPSIE!
by timmp, July 13
AT&T Office Thermostat, Summer
AT&T Office Thermostat, Summer
by timmp, July 13
Who's Online Now
0 members (), 27 guests, and 16 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#47070 01/07/05 11:09 PM
Joined: Dec 2004
Posts: 78
C
Cinner Offline OP
Member
Before starting a unit sub we checked for continuity between phases and ground and kept getting continuity b/w red & grnd. It turns out that it was not a ground fault but only something electronically at the meter. Has anyone encountered this problem before and how do you dertermine if it is a true fault or just this electronic equipment causing this? We determined this by simply turning equipmwnt on after not physically seeing any fault in or around the equipment.

Joined: Jul 2002
Posts: 8,407
Likes: 2
Member
Cinner,
What sort of meter is used there?.
My understanding of an energy (KWh) meter, is that it has two coils in it.
One is the Potential coil and that connects across Hot and Neutral.
The other is the Current coil and that connects in series with the Hot wire before it feeds the load.
I'm thinking maybe that the Potential coil may have upset your continuity readings, because of a reference to Ground through the Neutral.
Quote
We determined this by simply turning equipmwnt on after not physically seeing any fault in or around the equipment.
Can't say that I like the idea of that technique, because if there had have been a genuine fault on the circuit, things could have happened. [Linked Image]


Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
sparky66wv
sparky66wv
West Virginia
Posts: 2,236
Joined: November 2000
Top Posters(30 Days)
timmp 4
Rachel 4
Popular Topics(Views)
281,407 Are you busy
215,050 Re: Forum
201,934 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5