[Gllug] OT: Merging UPS outputs

[John Winters]

On Thu, 2005-09-01 at 12:22 +0100, Rich Walker wrote:
> Chris Hunter <chrisehunter at blueyonder.co.uk> writes:
> 
> >
> > There are NO fuses that fail fast enough to protect triacs!  The only
> > way is to use grossly over-rated triacs, or to use a different
> > approach - back-to-back thyristors.
> 
> It is a fundamental saying in my neck of the woods: "Fortunately, the
> expensive electronics blew up, saving us the need to replace a fuse".

A friend of mine worked at the BBC in his immediate post-student years,
maintaining big transmitters.  He said the big ones were particularly
easy to do fault-finding on because you simply looked for the components
which had been reduced to an acrid-smelling mess.

John

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