ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Recent Posts
VFD MotorFeeders
by gfretwell. 10/19/17 01:02 AM
Generator Cable Sizing
by brsele. 10/18/17 07:39 PM
What do you do?
by gfretwell. 10/17/17 01:08 AM
Good ol' copper pipe in the fuse holder trick
by HotLine1. 10/16/17 07:16 PM
Another generator question
by HotLine1. 10/16/17 07:02 PM
New in the Gallery:
Gallery Test
Popular Topics(Views)
241,417 Are you busy
177,389 Re: Forum
168,990 Need opinion
Who's Online Now
0 registered members (), 16 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#46515 - 12/24/04 05:59 PM Testing of Motors *** HELP***  
acetoday  Offline
Member
Joined: Sep 2003
Posts: 35
Manassas, Va
My customer has a pool pump (120v/5amps) which is relatively new (3 weeks old). Here is the problem, the customer without checking with me first ran 12-2 UF cable on the surface to keep the pool circulating through out the winter so the pipes wouldn't freeze. However, the pump is located approximately 225 ft from the main panel. The pump was plugged in for approx 2.5 weeks.

I calculated the vd at 2.25 volts which would require number 10 wire. Now when he plugs the pump in it kicks the breaker. This circuit is not on a GFCI protected. The customer did this without checking with me also.

Here is my question: Is there a way to check the leads on the motor for a direct short. I suspect the motor has burned out.


Work Gear for Electricians and the Trades

#46516 - 12/24/04 06:04 PM Re: Testing of Motors *** HELP***  
dryden_burton  Offline
Member
Joined: Nov 2004
Posts: 11
Maple Creek, Saskatchewan, Can...
you could use a continuity tester or a multimeter put one lead one each conductor to see if there is a short.


Dryden

#46517 - 12/24/04 06:12 PM Re: Testing of Motors *** HELP***  
russ m  Offline
Member
Joined: Feb 2003
Posts: 169
Burbank,IL,USA
with the motor leads not tied to anything, You should'nt read anything on the meter from the wire to the case of the motor.
Put the tester across the two motor leads and you should read the resistance of the motor winding and not a short circuit.



Member Spotlight
HCE727
HCE727
Delaware County, PA, USA
Posts: 186
Joined: November 2005
Show All Member Profiles 
Featured:

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

 

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.015s Queries: 14 (0.003s) Memory: 0.7510 MB (Peak: 0.8758 MB) Zlib enabled. Server Time: 2017-10-21 04:47:18 UTC