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#165529 - 06/29/07 03:22 PM Transformer hit by lightning
Trumpy Offline

Member

Registered: 07/05/02
Posts: 8540
Loc: SI,New Zealand
This picture submitted by ECN Member Richard:

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#165563 - 06/30/07 09:42 AM Re: Transformer hit by lightning [Re: Trumpy]
richard Offline
Member

Registered: 08/07/03
Posts: 84
Loc: 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.

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#165575 - 06/30/07 03:00 PM Re: Transformer hit by lightning [Re: richard]
Trumpy Offline

Member

Registered: 07/05/02
Posts: 8540
Loc: SI,New Zealand
richard,
Are those wires on that transformer supposed to be bare?.
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin

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#165586 - 06/30/07 07:08 PM Re: Transformer hit by lightning [Re: Trumpy]
techie Offline
Member

Registered: 05/17/05
Posts: 240
Loc: palo alto, ca usa
The bare wires that I see look like concentric shields..

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#165600 - 07/01/07 07:48 AM Re: Transformer hit by lightning [Re: techie]
Nick Offline
Member

Registered: 08/13/01
Posts: 603
Loc: 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.


Edited by Nick (07/01/07 07:53 AM)

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