green-hornet
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- Feb 25, 2009
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I had a major problem with multiple motors on a wood working machine today.
3 seperate unrelated faults all contributed to a massive machine failure.
First fault diagnosed was the overload protection set too high for the motor ratings.
Second fault was both motors where linked to a single motor break.
Third fault was down to a lost phase.
An electrician before me had replaced the overload with a new one but could not get the machine to work and gave up.
When I got there one motor had burned out and because of force feeding had blown one of the phase fuses (rewirable).
The other motor had no overload protection because it was smaller than the one that had blown, so in turn that overloaded and burned out.
I had to replace both motors,and the overload whilst set too high and was replaced when tested proved to be ok, and was replaced by the original electrician when there was no need to.
The moral of this story is to test, its the only way to find the underlying problem, fix that and you are on the way to solving simple problems, not creating more problems.
The factory thought I was a genious lol.
All I did was test it out and they ended up with some spares.
I wonder what I should charge for being a genious? ROTFWL
3 seperate unrelated faults all contributed to a massive machine failure.
First fault diagnosed was the overload protection set too high for the motor ratings.
Second fault was both motors where linked to a single motor break.
Third fault was down to a lost phase.
An electrician before me had replaced the overload with a new one but could not get the machine to work and gave up.
When I got there one motor had burned out and because of force feeding had blown one of the phase fuses (rewirable).
The other motor had no overload protection because it was smaller than the one that had blown, so in turn that overloaded and burned out.
I had to replace both motors,and the overload whilst set too high and was replaced when tested proved to be ok, and was replaced by the original electrician when there was no need to.
The moral of this story is to test, its the only way to find the underlying problem, fix that and you are on the way to solving simple problems, not creating more problems.
The factory thought I was a genious lol.
All I did was test it out and they ended up with some spares.
I wonder what I should charge for being a genious? ROTFWL