I recently bought a lot of tools that included a few 240V/50Hz models. That
doesn't do me a lot of good since I live in the USA. Wired with
Australian/South Seas-type grounded plugs, but can be changed over to whatever
your local design is. Also can be used in the US if you have a 240V circuit.
First is a lightly-used B&D Industrial-branded version of the DeWalt palm
sander. Same tool. 1/4 sheet, can use a dust bag (not included). I've tested
this on a stepup transfomer and it works fine.
Second is a new or once-used B&D Industrial hot air gun. 2000W power, two
removable tips, dual heat settings, and nice steel carrying case. Made in
England. My transformer doesn't have the power to test this, but it looks like
new and tests out with a meter.
So, any folks from Down Under, UK, or continental Europe need a couple tools?
Entertaining offers right now.
GTO(John)
On Sat, 1 Nov 2003 10:21:59 -0700, CW wrote
(in message <XYRob.61061$ao4.161824@attbi_s51>):
> It is an urban legend. Assuming the same voltage, a razor would run the same
> on 60 Hz as 300 Hz.
If it is a "buzzer" type razor that uses a magnet two things could happen.
The speed of the magnet in the magnetic field would increase (vibrate faster)
thus making the razor "cut" faster"
(more likely) the mass of the magnet would not let it resonate at 300Hz and
the razor would just sit there and slowly burn up due to the change of
impedance of the coil and change in current draw.
-Bruce
>
>
> "Mark Jerde" <[email protected]> wrote in message
> news:[email protected]...
>> B a r r y B u r k e J r . wrote:
> It could be an "Army Urban Legend." Seems
>> the Army (has/had) some 400Hz (300Hz? 600Hz?) generators for the old
>> (Nike/Hawk) air defense system. Some guy managed to plug in his electric
>> razor. Story goes it ran very fast, but for a very short time.
>>
>> -- Mark
On 01 Nov 2003 04:13:38 GMT, [email protected] (GTO69RA4) wrote:
I have a Makita sander and a Hitachi 1/2" hammer drill both are
240V/50Hz. I have been using it for the last few year, run slightly
slower and have not other problems. I see no reason getting a
transformer to step down to 110V.
Keep it. :-)
>I recently bought a lot of tools that included a few 240V/50Hz models. That
>doesn't do me a lot of good since I live in the USA. Wired with
>Australian/South Seas-type grounded plugs, but can be changed over to whatever
>your local design is. Also can be used in the US if you have a 240V circuit.
>
>First is a lightly-used B&D Industrial-branded version of the DeWalt palm
>sander. Same tool. 1/4 sheet, can use a dust bag (not included). I've tested
>this on a stepup transfomer and it works fine.
>
>Second is a new or once-used B&D Industrial hot air gun. 2000W power, two
>removable tips, dual heat settings, and nice steel carrying case. Made in
>England. My transformer doesn't have the power to test this, but it looks like
>new and tests out with a meter.
>
>So, any folks from Down Under, UK, or continental Europe need a couple tools?
>Entertaining offers right now.
>
>GTO(John)
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I used a Millers Falls 240V drill on 120 for years. The thing here is that I
already have three palm sanders, and this heat gun running at a low voltage
wouldn't be any better than the one I have that's made for 120.
Someone who actually _needs_ 240V tools could get better use out of them. No
takers? Up on eBay they go.
GTO(John)
>I have a Makita sander and a Hitachi 1/2" hammer drill both are
>240V/50Hz. I have been using it for the last few year, run slightly
>slower and have not other problems. I see no reason getting a
>transformer to step down to 110V.
>
>Keep it. :-)
On 01 Nov 2003 04:13:38 GMT, [email protected] (GTO69RA4) wrote:
>I recently bought a lot of tools that included a few 240V/50Hz models. That
>doesn't do me a lot of good since I live in the USA.
Yes it does.
I was always under the impression that 50Hz stuff could be run on
60Hz, but not the other way around.
Barry
You can run 50 Hz stuff on 60 Hz, that's how I tested the sander with a
transformer.
The problem is that I can't be dragging a transfomer around or looking for a
240V line every time I go somewhere with a palm sander or heat gun.
GTO(John)
>>I recently bought a lot of tools that included a few 240V/50Hz models. That
>>doesn't do me a lot of good since I live in the USA.
>
>Yes it does.
>
>I was always under the impression that 50Hz stuff could be run on
>60Hz, but not the other way around.
>
>Barry
B a r r y B u r k e J r . wrote:
> I was always under the impression that 50Hz stuff could be run on
> 60Hz, but not the other way around.
I have no idea if this is true. It could be an "Army Urban Legend." Seems
the Army (has/had) some 400Hz (300Hz? 600Hz?) generators for the old
(Nike/Hawk) air defense system. Some guy managed to plug in his electric
razor. Story goes it ran very fast, but for a very short time.
-- Mark
Sat, Nov 1, 2003, 3:22pm (EST+5) [email protected]
(Mark=A0Jerde) says:
<snip> it ran very fast, but for a very short time.
This one's not an urban legend. Two of my uncles got a car fan,
the kind that goes inside the car, and blows air around. Pugged it into
a wall socket. It ran fast enough to pull itself across the room, very
rapidly, and crash into the opposite wall. They were told not to do
that again, my grandparents were not thrilled.
JOAT
My aim is to get through life peacefully, with as little interferrnce
from human beings as possible.
Life just ain't life without good music. - JOAT
Web Page Update 30 Oct 2003.
Some tunes I like.
http://community-2.webtv.net/Jakofalltrades/SOMETUNESILIKE/
According to T. <[email protected]>:
> Sat, Nov 1, 2003, 3:22pm (EST+5) [email protected]
> (Mark Jerde) says:
> <snip> it ran very fast, but for a very short time.
>
> This one's not an urban legend. Two of my uncles got a car fan,
> the kind that goes inside the car, and blows air around. Pugged it into
> a wall socket. It ran fast enough to pull itself across the room, very
> rapidly, and crash into the opposite wall. They were told not to do
> that again, my grandparents were not thrilled.
Of course, it all depends on the _type_ of motor. A brush-type
universal motor speed is primarily dependent on supply voltage, it
could care less the frequency or lack thereof. A shaver is more likely
to be a universal brush-type motor than anything else.
In contrast, induction motors rely almost exclusively on frequency.
A 120V induction motor will run the same speed at 240V. May or may
not burn out depending on loading.
My favourite "overclocking" story was a Mechanics Illustrated article
of _many_ years ago, where they built an electric go cart. Using
an auto starter for each wheel. Which is stupidly much
torque to begin with. But, they put 6 12V batteries in _series_
to power it.
Car starter motors. One per wheel. Supplied at 72V... Ouch.
_Tried_ to cool the motors with dry ice.
Heh.
On Sat, 1 Nov 2003 23:54:17 -0500 (EST), [email protected] (T.)
wrote:
>Sat, Nov 1, 2003, 3:22pm (EST+5) [email protected]
>(Mark Jerde) says:
><snip> it ran very fast, but for a very short time.
>
> This one's not an urban legend. Two of my uncles got a car fan,
>the kind that goes inside the car, and blows air around. Pugged it into
>a wall socket.
Joat,
You're confusing AC and DC power. HUGE difference there! <G>
Barry
Sun, Nov 2, 2003, 12:40pm (EST+5)
[email protected]
(B=A0a=A0r=A0r=A0y=A0B=A0u=A0r=A0k=A0e=A0J=A0r=A0.) claims:
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0You're confusing AC and
DC power. <snip>
Not at all. I was responding to a legend, with a true story.
JOAT
My aim is to get through life peacefully, with as little interferrnce
from human beings as possible.
Life just ain't life without good music. - JOAT
Web Page Update 30 Oct 2003.
Some tunes I like.
http://community-2.webtv.net/Jakofalltrades/SOMETUNESILIKE/
I worked at a place building mills (grinders), motors ranged in power
from 5 to 200 hp. All but the smallest motors were 3 phase.
Most motors were rated for multiple voltages, some motors were rated for
both 50 and 60 cycles, others were single frequency.
Check the data plate or with the motor manufacturer.
--
Mark
N.E. Ohio
Never argue with a fool, a bystander can't tell you apart. (S. Clemens,
A.K.A. Mark Twain)
When in doubt hit the throttle. It may not help but it sure ends the
suspense. (Gaz, r.moto)
The motors with brushes are not sensitive to frequency.
Heaters are not either.
Induction motors will run at speeds dependent on frequency. A 60 Hz motor
runs at 5/6 speed on 50 Hz and a 50 Hz motor runs at 6/5 speed on 60 Hz.
The 60 Hz motor will run slightly warmer on 50 Hz.
Wilson
"B a r r y B u r k e J r ." <[email protected]> wrote
in message news:[email protected]...
> On 01 Nov 2003 04:13:38 GMT, [email protected] (GTO69RA4) wrote:
>
> >I recently bought a lot of tools that included a few 240V/50Hz models.
That
> >doesn't do me a lot of good since I live in the USA.
>
> Yes it does.
>
> I was always under the impression that 50Hz stuff could be run on
> 60Hz, but not the other way around.
>
> Barry
>
It is an urban legend. Assuming the same voltage, a razor would run the same
on 60 Hz as 300 Hz.
"Mark Jerde" <[email protected]> wrote in message
news:[email protected]...
> B a r r y B u r k e J r . wrote:
It could be an "Army Urban Legend." Seems
> the Army (has/had) some 400Hz (300Hz? 600Hz?) generators for the old
> (Nike/Hawk) air defense system. Some guy managed to plug in his electric
> razor. Story goes it ran very fast, but for a very short time.
>
> -- Mark
>
>
Morgans wrote:
> "Mark Jerde" wrote
>>B a r r y B u r k e J r . wrote:
>> Some guy managed to plug in his electric
>>razor. Story goes it ran very fast, but for a very short time.
>>
>
> I don't know about Nike /Hawk, but 400Hz is the standard for military
> aviation.
I always wanted to plug the time clock into the stationary power source
in the hanger. Would make for a short day.
--
--
Mark
N.E. Ohio
Never argue with a fool, a bystander can't tell you apart. (S. Clemens,
A.K.A. Mark Twain)
When in doubt hit the throttle. It may not help but it sure ends the
suspense. (Gaz, r.moto)
On Sat, 01 Nov 2003 15:22:12 GMT, "Mark Jerde"
<[email protected]> wrote:
>I have no idea if this is true. It could be an "Army Urban Legend." Seems
>the Army (has/had) some 400Hz (300Hz? 600Hz?) generators for the old
>(Nike/Hawk) air defense system.
I was referring to commercial 50/60 Hz power, not high freq A/C
normally found in aircraft systems.
Barry
"Mark Jerde" <[email protected]> wrote in message
news:[email protected]...
> B a r r y B u r k e J r . wrote:
>
> > I was always under the impression that 50Hz stuff could be run on
> > 60Hz, but not the other way around.
>
> I have no idea if this is true. It could be an "Army Urban Legend."
Seems
> the Army (has/had) some 400Hz (300Hz? 600Hz?) generators for the old
> (Nike/Hawk) air defense system. Some guy managed to plug in his electric
> razor. Story goes it ran very fast, but for a very short time.
>
> -- Mark
>
>
I don't know about Nike /Hawk, but 400Hz is the standard for military
aviation.
--
Jim in NC