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Transformer hit by lightning #165529
06/29/07 06:22 PM
06/29/07 06:22 PM
Trumpy  Offline
OP
Member
Joined: Jul 2002
Posts: 8,250
SI,New Zealand
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Re: Transformer hit by lightning [Re: Trumpy] #165563
06/30/07 12:42 PM
06/30/07 12:42 PM
richard  Offline
Member
Joined: Aug 2003
Posts: 98
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.

Re: Transformer hit by lightning [Re: richard] #165575
06/30/07 06:00 PM
06/30/07 06:00 PM
Trumpy  Offline
OP
Member
Joined: Jul 2002
Posts: 8,250
SI,New Zealand
richard,
Are those wires on that transformer supposed to be bare?. crazy

Re: Transformer hit by lightning [Re: Trumpy] #165586
06/30/07 10:08 PM
06/30/07 10:08 PM
T
techie  Offline
Member
Joined: May 2005
Posts: 247
palo alto, ca usa
The bare wires that I see look like concentric shields..

Re: Transformer hit by lightning [Re: techie] #165600
07/01/07 10:48 AM
07/01/07 10:48 AM
N
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 10:53 AM.

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