Motor overload troubles
Motor overload troubles
(OP)
I am having troubles with three overloads tripping. Two of them are trim saws and the other one is a hydraulic power pack. The have nothing to do with each the only thing they have in common is that they are on the same vertical bus bars. They all trip out at the same time. I moved the tub for the hydraulic power pack and now it is not tripping out but the trim saws continue to trip out even when the are not trimming the wood. Is this a bus bar issue or bad overloads? The overloads are siemens ESP 100. Can anyone help please.





RE: Motor overload troubles
Give us lots more data. It could be a wide variety of issues.
Good on ya,
Goober Dave
RE: Motor overload troubles
----------------------------------
If we learn from our mistakes I'm getting a great education!
RE: Motor overload troubles
Thanks
RE: Motor overload troubles
----------------------------------
If we learn from our mistakes I'm getting a great education!
RE: Motor overload troubles
RE: Motor overload troubles
You should now do a very thorough inspection of all of the stab assemblies in each bucket that was stabbed onto that offending bus bar (if it was the vertical). If it was the main horizontal bus, inspect every stab assembly fed from that main bus and any bolt-on connections for signs of thermal stress. If the stabs over heat from LV like that, the springs can lose their tension and the failures start happening more rapidly.
"If I had eight hours to chop down a tree, I'd spend six sharpening my axe." -- Abraham Lincoln
For the best use of Eng-Tips, please click here -> FAQ731-376: Eng-Tips.com Forum Policies
RE: Motor overload troubles
Thanks for sharing your results.
=====================================
(2B)+(2B)' ?