RE: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK

Hi John

Have you checked the motor plate on the mill? Many 3ph motors can be
wired (simple change; instructions usually on the plate or under "wiring
entrance" cover) for 220 or 440.

Lew


-----Original Message-----
From: John [mailto:johnhe-uk@...]
Sent: Friday, July 05, 2002 10:54 AM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK

That's as I expected really. But I'll call back again just to annoy them
and
ask _how_ they'd go about upgrading it to three phase. I heard static
converters only manage about 2/3rds of the full rating they're specified
for. This, and the question I asked on moving machinery, is because the
mill
at school is 440v 3phase and I'm really checking it's okay for me to
offer
them some money for it. There's no point me saying I'll take it only to
tell
them I can't a few weeks later.

John

> Hi John,
>
> I've just had this done. It cost me nothing so far and Manweb supplied

the

> meter. I did have to persuade the installing technician it was in his

best

> interests to do the job. He wanted to walk away once he decided the

meter

> was too large to go where I wanted it. A quick measure and he was

satisfied.

>
> The job took an hour and it was left to me to put in the three-phase

wiring

> after the meter into the cellar. I was left with a single-phase supply

to
my

> flat (apartment).
>
> I've not yet had the first power bill so I can't tell you if the price

of
my

> electricity has changed, it will be good to see the meter readers face

when

> he sees it. The guy, who put it in, said he has never put it into a

flat

> before.
>
> They will only provide this service free if you already have a

three-phase

> supply into your property and don't have to dig up the street.
>
> BTW I don't get my power from Manweb but from another supplier.
>
> Regards,
>
> Terry
>
>
>
>
> | Hello all,
> |
> | I called British Gas & Electricity today to ask them about 3

phase,

> they said I should call Manweb. I did just that and apparently they'll

run

> three phase electricity into your house for free, in fact the woman

was

> getting ready to sign me up for it before I'd finished asking my

question.

> You need to get a 3 phase power meter from your supplier. I'm

currently

> finding out how much one of these will cost and I'm not sure if you

can

> still get the standard single phase at the moment.
> |
> | I just thought some of you guys might be interested in what I've

found

> out, even though it's not strictly CNC related, there are lots of

machines

> out there that are going to waste that run on three phase and it seems

that

> a couple of places charge you for having a three phase line put in. An

when

> you can have the true three phase run in for free it kind of negates

the

> need for a VFD unless you want the spindle control (And even then it's
> cheaper than buying one to convert the single phase 220 to 440). I

forgot
to

> ask what voltage this line will be at.
> |
> | If you want to know what I find out about the meter and having a

single

> phase line as well let me know.
> |
> | Regards,
> | John H.
>
>
>
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>
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Addresses:
FAQ: http://www.ktmarketing.com/faq.html
FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/

OFF Topic POSTS: General Machining
If you wish to post on unlimited OT subjects goto:
aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it
if you have trouble.
http://www.metalworking.com/news_servers.html

http://groups.yahoo.com/group/jobshophomeshop I consider this as a
sister site to the CCED group, as many of the same members are there,
for OT subjects, that are not allowed on the CCED list.



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