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Jon21/12/2011 22:51:48
1001 forum posts
49 photos
Thanks for the update Ramon.
 
If its any help i use between £2.60 to £3 electric a day, double last and previous years.
 
Single ph 3hp compressor uses 57p/hr whilst tripped in just noticed.
With the 7.5KW inverter the heavier the cut the more the reader registers. So when ploughing 8mm off one pass motor dont slow, it is well above £1.50 p/hr. Havent had the bottle yet to take it up to 1/2" like me last lathe.
 
The 5.5KW Transwave rotary converter when putting a menial 1/16" cut on spindle slows and changes note, its there for emergency.
 
Direct Drives have my old 5KW single ph input to 440V 3ph output around £500, not a bad saving for 1 1/2hrs use.
Gone Away22/12/2011 02:05:43
829 forum posts
1 photos
Posted by Ramon Wilson on 21/12/2011 21:23:30:

The 'Chancellor' - that's Sue not George - recently announced that we are substantially (and it is substantial) in credit with said electricty supplier over a similar period of last year.
This can only be put down to the change in power units
The other big saving has been with the compressor
 
Hope you're right about that, Ramon. I'm in Canada and we use natural gas for heating and hot water. A couple of years back we saw a great improvement in our monthly bill. I put this down to the fact that we'd just had a new, high-efficiency furnace installed but frankly I was uneasy because the saving would have paid for the new furnace in no time flat (it couldn't be that good surely).
 
At the end of the heating season, the other shoe dropped. The gas company announced that it had discovered that it had been miscalculating the consumption of hundreds of customers and that our bills should have been close to what we were used to in the past. They also sent us a nice big bill to catch up!
 
Still as long as your improved efficiencies look as though they can account for the savings you're probably OK.
 
(gawd I hate this editor with a vengeance) .
 

Edited By Sid Herbage on 22/12/2011 02:06:41

Ramon Wilson22/12/2011 16:30:36
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1655 forum posts
617 photos
Hi Jon, Sid,
 
I've never actually thought about how much it costs to run my little 'second home' on a daily basis but it must be more than the rest of the house bar heating (gas)
(Sshh don't let Sue hear that - I might have to take up stamp collecting ).
 
Seriously though, it probably is our biggest drain on electricity and it would appear that this has made a big difference. I hope it's not the same case as yourself Sid but our costs per unit appear to have gone up in line with everything else - for once our useage appears to have diminished. Time will tell even more so.
 
What I can say on the VFD front and with absloute certainty is I would never, ever, go back - what a sheer pleasure to use - a real asset for sure, mill or lathe.
 
Regards - Ramon
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