Storage of VSD's

[ServiceEng]

Has anyone stored a vsd for over 5 yrs without powering.
I know these vsd have to be primed started - to be able to allow for capacitor forming. Has anyone got any idea in general how to do this? Use a triac to start at low voltage ? I have heard of people connecting 3 big light bulbs (1000W) in series with the supply l1 l2 l3.
Any tips for long storage of VSD ?
Do we have to power them up every 3 months ? Any recommendations ?

 

[jraef]

Search "Capacitor reforming" on this site, we have discussed it several times over the years.


"If I had eight hours to chop down a tree, I'd spend six sharpening my axe." -- Abraham Lincoln
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[ozmosis]

If you know you are going to store them for so long, my advice is to power them up every year and keep them powered up and maybe run them on a motor for a day or so. You would not need to be looking at reforming the capacitors doing it this way.
After running and once the drives have cooled down, ensure there is no dust build up inside the drives. They do tend to attract dust. If you can seal them up with hygroscopic bags to absorb any moisture then even better. Keep in an environment that is stable in temperature and cool without freezing. It's like storing wine in a way but not as enjoyable.

 

[ServiceEng]

Thanks guys