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post #1 of 14 (permalink) Old 03-04-2011, 08:00 AM Thread Starter
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Default A shop in the making

I am slowly coming up with a shop. I have a 40' x 50' building next door that I used to keep janitorial supplies in. I've sold most of that stuff and am putting together a shop on a shoe string budget, meaning I am close to broke. I've gotten myself an old Rockwell 13" x 6" planer and an Nortech 8" jointer. The planer is 3 phase equipment and I am working out a deal now with my woodworking mentor to acquire a 3 phase rotary converter. This converter can handle a 20 horsepower motor startup. The planer is only 5 horse. I need to make friends with an electrician and get him or her to look at that new breaker box and those wires coming from the pole and tell me how to proceed. I would love to hire an electrician but I spent all my money on that red oak. I've been buying it in the rough and planing and straight edging one edge and reselling it. My goal is to get to 1000 bf. I make sure and sell it cheaper than the box stores. I've already gotten my first price break and have passed than on. Those file cabinets are where my sandpaper will go to live.
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Last edited by mjdtexan; 03-04-2011 at 08:02 AM.
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post #2 of 14 (permalink) Old 03-04-2011, 10:23 AM
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Hi

Using a 3 phase rotary converter will drive your bill up sky high.



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Last edited by bobj3; 03-04-2011 at 10:27 AM.
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post #3 of 14 (permalink) Old 03-04-2011, 05:24 PM Thread Starter
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Quote:
Originally Posted by bobj3 View Post
Hi

Using a 3 phase rotary converter will drive your bill up sky high.



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¿Why? The extra motor?
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post #4 of 14 (permalink) Old 03-04-2011, 06:07 PM
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Rotary Phase Converter - Power Transformer Co.
Three-phase electric power - Wikipedia, the free encyclopedia
Three Phase Converters > Three Phase Power Converters - Three Phase Converter

==========

Quote:
Originally Posted by mjdtexan View Post
¿Why? The extra motor?



"It's fine to disagree with other members as long as you respect their opinions"

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post #5 of 14 (permalink) Old 03-04-2011, 06:40 PM Thread Starter
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Sometimes I am a little slow. I just dont see the part where it talks about driving your bill up.
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post #6 of 14 (permalink) Old 03-04-2011, 06:48 PM
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Hi Michael

Drop a dime and call your power company they should have all the numbers.

It's not a new thing and most back off from it once they find out how much it's going to cost in the end ..


======

Quote:
Originally Posted by mjdtexan View Post
Sometimes I am a little slow. I just dont see the part where it talks about driving your bill up.



"It's fine to disagree with other members as long as you respect their opinions"

Marc Sommerfeld Tools ,Videos
http://www.youtube.com/channel/UCT-n...RWaEpMA/videos

Find all threads started by bobj3
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post #7 of 14 (permalink) Old 03-05-2011, 04:45 AM Thread Starter
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Quote:
Originally Posted by bobj3 View Post
Hi Michael

Drop a dime and call your power company they should have all the numbers.

It's not a new thing and most back off from it once they find out how much it's going to cost in the end ..


======
Now I am confused, those links were to show me what?
I did actually take the time to read them hoping to find the information you were warning me against. I do not want to make a stupid mistake, and I apprciate you taking the time to help me out. I just figured that since you offered those links up as proof they drive your bill up that you may have actually read them too.

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post #8 of 14 (permalink) Old 03-05-2011, 07:49 AM
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My dad has a rotary converter on a mill and lathe that he uses just about daily and I have never heard of the bill being high.
I think that you lose part of your total power of the machine it is hooked too. I have a static converter on my mill but I may use it twice a week, not enough to tell a difference.

Last edited by mac_y44; 03-05-2011 at 07:53 AM.
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post #9 of 14 (permalink) Old 03-05-2011, 10:42 PM
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Here's a good site with great information re phase converters.

Phase Converter Frequently Asked Questions

They're much more efficient than some are led to believe.

Quote:
How efficient are phase converters?
Extremely efficient. Losses are generally less than 15% and usually under 10%. One must remember, however, that only one third of the total energy consumed by the load actually passes through the converter. Therefore, the total loss of the converter system is 15% of 33% or about 5% of all the energy consumed. That translates to 95% overall efficiency.
Good luck!
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post #10 of 14 (permalink) Old 03-06-2011, 06:41 AM Thread Starter
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Originally Posted by eccentrictinkerer View Post
Here's a good site with great information re phase converters.

Phase Converter Frequently Asked Questions

They're much more efficient than some are led to believe.



Good luck!
Hey, thank you for that information. I thank each and every one of you who stopped by to advise me and help me.


Edited to add: I read that link, seems like a good link and it did indeed explain a few things. Thanks very much.

Last edited by mjdtexan; 03-06-2011 at 06:48 AM.
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