ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
sparky 8
Recent Posts
Dimmable LED 2x4 lay in fixtures
by HotLine1. 12/17/17 10:04 PM
2017 NEC Changes
by HotLine1. 12/17/17 09:47 PM
Holiday Wishes to all!!
by sparky. 12/17/17 03:45 PM
Casino Wiring methods
by HotLine1. 12/09/17 10:44 AM
Ground wire Size to water Line.
by HotLine1. 12/05/17 12:11 PM
New in the Gallery:
Gallery Test
Popular Topics(Views)
243,090 Are you busy
179,534 Re: Forum
170,444 Need opinion
Who's Online Now
0 registered members (), 8 guests, and 11 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#165529 - 06/29/07 05:22 PM Transformer hit by lightning  
Trumpy  Offline


Member
Joined: Jul 2002
Posts: 8,223
SI,New Zealand
This picture submitted by ECN Member Richard:
[Linked Image]


Tools for Electricians:

#165563 - 06/30/07 11:42 AM Re: Transformer hit by lightning [Re: Trumpy]  
richard  Offline
Member
Joined: Aug 2003
Posts: 95
L.I. New York
I guess i should give some info on this. This transformer feeds a major bookstore that is in most if not all states in the u.s.
The batteries gave out after 25 min. and the 1200 amp backup gen. failed. After change out of the gen. breaker, the store was back online. Also, they will have to see if the batteries will have to be replaced, due to weakening from the lightning strike.


#165575 - 06/30/07 05:00 PM Re: Transformer hit by lightning [Re: richard]  
Trumpy  Offline


Member
Joined: Jul 2002
Posts: 8,223
SI,New Zealand
richard,
Are those wires on that transformer supposed to be bare?. crazy


#165586 - 06/30/07 09:08 PM Re: Transformer hit by lightning [Re: Trumpy]  
techie  Offline
Member
Joined: May 2005
Posts: 246
palo alto, ca usa
The bare wires that I see look like concentric shields..


#165600 - 07/01/07 09:48 AM Re: Transformer hit by lightning [Re: techie]  
Nick  Offline
Member
Joined: Aug 2001
Posts: 599
Riverside, CA
Wow, either the lightning blew H1A's bushing completely out of the tank or someone disconnecting it did. I am not sure because H1C is grounded out which someone would have to do with a hot stick. There is oil all over the tank from H1A's bushing well, if that one was done with a hot stick it's probably all over the operator too.

Edit-Upon closer examination H1C's bushing is capped and the cap has a brown charred look like the rest of the equipment. It must not have been connected. Also, H2A's bushing looks broken and about to fall off. Seems like A phase took it pretty hard.

Last edited by Nick; 07/01/07 09:53 AM.


Member Spotlight
sbi
sbi
indiana
Posts: 47
Joined: March 2008
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: 0.013s Queries: 15 (0.003s) Memory: 0.7690 MB (Peak: 0.9080 MB) Zlib enabled. Server Time: 2017-12-18 04:53:08 UTC