They lost the DC feed to the "Circuit Switcher" on the high side of the transformer.  There was no way for the fault to clear. 
 
Gerry N9MEP 
 
-----Original Message-----
From: Chuck Kelsey <[EMAIL PROTECTED]>
To: [email protected]
Sent: Thu, 05 Jan 2006 20:05:59 -0500
Subject: Re: [Repeater-Builder] had a little power supply trouble the otherday...

More than likely the fusing was proper. Typically substation transformer 
size along with fusing is coordinated and engineered rather extensively. 
My suspicion is that a component failure may have contributed to the 
total failure of the transformer. It is possible the a fuse did open, 
but that the fuse holder assembly could have failed in such a way that 
an arc continued the current flow regardless of the open fuse.

It would be interesting to know exactly what did happen.

Chuck
WB2EDV




Q wrote:

>Maybe a lesson in proper fuse sizing is in order??? Nice clip!
>I think they call that a BLEVY!!!
>
>Charles Schmell wrote:
>  
>
>>Skipp - Is that what is meant by tuning a micor for
>>maximum smoke?  ;-)
>>
>>Charles, KB3CEZ
>>
>>--- skipp025 <[EMAIL PROTECTED]> wrote:
>>
>>
>>    
>>
>>>      
>>>
>>http://www.wv7u.com/audiovideo/Transformer%20Failure.mpg
>>
>>    
>>
>>>enjoy
>>>skipp 
>>>      
>>>
>
>
>
>
> 
>Yahoo! Groups Links
>
>
>
> 
>
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>  
>





 
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