Re: Power Factor and George Marsh

Posted by George Marsh on August 14, 2012 at 15:21:17 from (50.104.223.0):

In Reply to: Power Factor and George Marsh posted by John T on August 14, 2012 at 09:28:17:

John T,
I have purchased a cheap PF meter on ebay. The boat from china is running a little slow. I was concerned about going too far, that's why I stopped at 170 uf. However each time I added capacitors, the total current went down. To play it safe, I installed a 10 amp fuse on the capacitor side. Fuse hasn't blown yet. Put in a metal electrical box, which of course was FREE. I got my education from Redneck Teck where we were taught to do things on the cheap. My first course was B&D, short for Bungie cord and duct tape. I didn't realize the infinate number of ways you can use B&D.

Ok, back on track. In the early 80's my dad had a heart attach, I got stuck wiring up 2 phase converter for a goverment contract. My dad was the sub-contractor doing the electrical. We had two 25 hp pumps to wire up. There was no circuit diagram to work off of, I had to make one in my head. I drew the blue prints later. They wanted the pump on the left to fire up first and after a short delay, the pump on the right. Next time it was to be reversed, right then left. We had just a few days to get the job done or the fine would have been out of sight, and the fine may have killed my father . Perhaps that's why my dad had a heart attach in the first place, all the stress. Long story short, there was a rule of thumb for static phase converters. So many farads/hp for the start capacitors and so many for the run capacitors. I remember getting special parts flown in over night and working almost 48 hours without sleep. We had a 400 amp service to work with. Thank God I had two brothers to assist with the big wires and the load center. We completed the job with about 2 hours to spare. After starting the pumps we played around with the run caps to get the current balanced the best you can on all three legs. It made the the goverment officials happy. They were ther with their cameras breathing down are necks. I never heard back from the contractor, so we must have done something right. BTW, the two 55 mic 440 volt caps I used were left overs from that job.

Thanks for the info. I'll keep you posted as to what I find out, unless someone knows what the rule of thumb is. I only plan to use my genny when I have a power outage, which may be the next ice storm or strong wind. Had both in the past 2 years and without power for about a week or more each time. Also use to power up my 4 peak hp chainsaw, which the owner's manual says the genny shouldn't be connect to saws. Apparently the genny doesn't like universal motors.

Sorry I'm so long winded. Perhaps I should put a warning on my post, long winded. You may not want to read.

Isn't life good in your retirement years?

George

Replies:

• Re: Power Factor and George Marsh George Marsh 15:56:17 08/14/12 (2)
  • Re: Power Factor and George Marsh Jammison 05:49:36 08/15/12 (0)
  • Re: Power Factor and George Marsh buickanddeere 20:45:21 08/14/12 (0)

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