Dear Edison,
Yes this an IP54 enclosure ABB motor.
We operate in a cobalt process plant so sometimes we get pipe leaks and overflows that ends up on motors sometimes unfortunately, hence the junk on motor.
How do we prevent winding earth fault electrically? earth fault relay installed upstream...
Edison,
Please see attached picture for one installation.
Waross,
We have over 200 motors installed in the plant so it will be costly and cumbersome to install instrument air.
http://files.engineering.com/getfile.aspx?folder=18135962-4423-44b2-afd6-b45103e5481f&file=IMG_20150416_081632.jpg
Thanks edison123,
All our motors are currently IP54 enclosure, we mostly ABB and WEG motors, but somehow water gets inside. I want to implement scheme whereby motor should trip immediately water gets in touch with windings.
Any suggestion?
We have covered canopies on motors to protect mainly the terminal box, i want to find out if there is any electrical protection scheme suitable instead of physical protection?
We have been losing motors lately due to wet insulation from high jet water ( our plant operates in very wet environment). I have installed earth leakage relays (CBCT) of 250mA but relay only operates after motor damage. Whay is the best electrical protection for this application?
