Distracted Lately, But Getting Back to Editing

john_dennis wrote on 10/13/2009, 6:08 PM
I had a little excitement at work recently but now I'm getting back on the horse with editing.



This video is from a security DVR that happened to catch the action. It records this camera at 320x240 at about 5 fps. I lengthened the plasma ball from one frame to about a second so no one would miss it and faded to a still of the damage but at 320x240 there won't be much detail. The cross fade is not too smooth at 5 fps, either.
Probably, no Academy Awards for this work.

Now, everyone can see what I do in my spare time.

Comments

johnmeyer wrote on 10/14/2009, 8:03 AM
Do UPS backups fail like this often? I have five UPS boxes running in my house and would not wish to have this happen.

You sure seemed quite calm, given the fireball and the smoke.
john_dennis wrote on 10/14/2009, 9:37 AM
Luckily, 750 KVA UPS units don't fail often. They explode even less often, but they do fail. The smaller units can not create the explosive forces that units can when the source is from 480 VAC 3 Phase 3000 AMP feeders.
My appearance of calm probably should get me nominated for an Academy Award. Heavy on the appearance.

Your units at home are probably not on-line UPSs but rather "line-interactive" or "standby". In those configurations, the load is not on the inverters all the time, only when power is out. The batteries in the home units should be replaced on a schedule because the batteries are source of most of the problems. I have a few small UPS units around and I policy replace the batteries at 48 months.
gpsmikey wrote on 10/14/2009, 7:15 PM
High power stuff is sort of like rockets - when things go wrong, they usually go VERY wrong and very fast !! Glad nobody got hurt on that.

mikey
farss wrote on 10/15/2009, 5:02 AM
Oil filled paper capacitors can make one heck of a bang.

If I'd been near that incident I would have been out of there so fast. High voltage direct current deserves a lot of respect.

Bob.