ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

>> Home   >> Electrical-Photos   >> Classifieds   >> Subscribe to Newsletter   >> Store  
 

Photos of the Week:

Meter vs Bricklayer
Meter vs Bricklayer

Advertisement:-Left
Recent Gallery Topics:
What in Tarnation?
What in Tarnation?
by timmp, September 10
Plumber meets Electrician
Plumber meets Electrician
by timmp, September 10
Who's Online Now
0 members (), 274 guests, and 27 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#13465 09/04/02 10:39 PM
Joined: Jul 2002
Posts: 74
S
scjohn Offline OP
Member
Bidding a job with an older exisiting 480-277/208-120, 112.5 kva transformer is to be used. The specs. ask for a field test to be performed to see if the xfrmr is functionig properly before submitting a bid. Problem is there is no power to the building. Is there anyway to test the unit without powering it up??
Thanx, John.

Horizontal Ad
#13466 09/04/02 11:36 PM
Joined: May 2001
Posts: 717
G
Member
John,
Megger test, TTR (Transformer turns ratio) can be performed prior to energizing. Most any testing company performs these tests on a normal basis.

#13467 09/05/02 12:36 AM
Joined: Aug 2002
Posts: 36
T
TE Offline
Member
John,
If you don't have the equipment and aren't familiar with the procedures, I would definitely do as George suggests and have a testing co preform the checks.

However, I wouldn't incurr these costs at the bid stage as they suggest. I would include the cost to test in my bid and state the additional cost to replace the xfmr should it fail at the bottom of my proposal.


Link Copied to Clipboard
Advertisement:-Right


Tools for Electricians
Tools for Electricians
 

* * * * * * *
2023 National Electrical Code (NEC)
2023 NEC + Exam Prep Study Guides Now Available!
 

Member Spotlight
Alan Belson
Alan Belson
Mayenne N. France
Posts: 1,803
Joined: March 2005
Top Posters(30 Days)
Popular Topics(Views)
352,283 Are you busy
276,058 Re: Forum
255,598 Need opinion
New Page 2
Powered by UBB.threads™ PHP Forum Software 7.7.5