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WillR
 
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Roy Smith wrote:
Leon wrote:
=20
If anything a lower rated circuit breaker is going to make the motor
heat up more when under a strain because it is not getting enough
power.


Enough current???? Have actually seen this -- in a failure mode of a=20
breaker - ALTAIALFA (a long time ago in a land far away) But it was a=20
handful of failures in thousands of machines. Highly unlikely -- but=20
maybe not impossible. I will leave it to the EE's in the group who might =

want to debate this. I am sure that someone here can do some=20
calculations and dig up some data to prove something. I certainly=20
can't/won't these days.

=20
=20
Ugh. Where do people get this stuff from? A breaker either stays
closed or it opens. If it's closed, the circuit will deliver as much
power as the load can draw (minus resistive losses in the wiring
itself). If it opens, there's no power delivered. There is no middle
ground where the breaker is not delivering "enough power".



And if the breaker fails by developing a higher resistance? Actually=20
seen this in a handful of failures out of many thousands of=20
motor/breaker circuits in a manufacturing situation. I was just glad I=20
could pass the analysis to someone competent. Again ALTAIALFA -- QA is=20
probably a lot better and techniques have changed -- so it probably=20
doesn't happen any more...



I am beginning to wish that we had the Chemists equivalent of STP=20
(Standard Temperature and Pressure)

Then we could all say that when we mean when we say "normally" -- which=20
isn't used often enough...

Then we wouldn't debate this stuff unless it was egregious enuff to=20
really rile us up. I am so MAD!!! Cause I saw some of these failures 30=20
years ago and -- IT CAN HAPPEN! I SWEAR! TO DENY IT IS WRONG!!!!

And I swore I would never post on one of these threads. But if a cool=20
head like Robatoy can give at least one shot I will allow myself _once_.


Did I mention I HATE COMPOUND MITER DESIGNS?

I swear by the Red Green payer that I will do this no more. I swear...


OKOK AMT. Breathe deep.


--=20
Will R.
Jewel Boxes and Wood Art
http://woodwork.pmccl.com
The power of accurate observation is commonly called cynicism by those=20
who have not got it.=94 George Bernard Shaw