"john johnson" wrote in
u:



Hi,
I work for a power company, and in one of my earlier roles worked
in the
test section, the section where all the difficult power quality issues
ended up. One that I recall involved a CNC machine shop, the owner was
very angy that we were supplying him with poor quality power and
damaging his machinery. We installed a dranetz power line analyser,
and boy was there some crap in his power systems, it was a wonder
anything worked at all.

The thing is though, we don't supply crap power, well mostly
anyway. By
crap power, I mean power that is still on, but full of dips and
spikes. We do on occasion fail to supply any power, but it's excellent
quality grin We can on occasion, have failures in our voltage
regulation equipment , and supply the wrong voltage, and while low
voltages can cause motors to burn, it's still very rare on our
network. It's also very rare for our equipment to mess up the quality
of the power supply. The only thing we can do to pollute the nice
clean stuff we get from the generators is burning connections, and
they dont usually last very long once they begin to burn. Where 99
percent of the crap comes from is customer loads, either the customer
themselves is doing it, or a close neighbor.



Wholeheartedly agree John....It isn't the power company's fault in our
case, and we know it. It's all the crap we generate in-house. Induction
furnaces, huge 400 hp air compressors (4x), big-assed anodizing
operations (some serious power use there), all the CNC machines, etc.
We pull enough power in our facility to run a small city.



--
Anthony

You can't 'idiot proof' anything....every time you try, they just make
better idiots.

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