--===============1297417050773172722==
boundary="----=_Part_54895_1080818061.1536495351679"
------=_Part_54895_1080818061.1536495351679
Content-Transfer-Encoding: quoted-printable
That's a bad assumption. It is much safer to assume you cannot switch bet=
ween 110 and 220 with a transformer. Transformers CAN be designed to be sw=
itch between the two voltages using dual primary windings allowing them to =
be configured in either parallel or series. Many pieces of equipment are s=
o designed and many of those have a switch somewhere allowing the end user =
to select the appropriate voltage. When using equipment it is a good idea =
to look for this switch and, if found, make sure it is in the correct posit=
ion.
If no such switch is found, check the label. UL, CSA, CE, VDE and other ap=
proval agencies require a label indicating the input power ratings includin=
g voltage, frequency and power.
Back when I was designing line powered stuff we designed around the voltage=
range of 90 to 132 (180 - 264) Vac so whether you have 220, 230 or 240 sho=
uld not be an issue for consumer products. Many electronic devices work ov=
er the range of 90 to 264 volts but this is because of some sophisticated e=
lectronics in the power supply section specifically designed to accommodate=
this range.
The UK unit, if it is a transformer-based design, most likely is design for=
the EU market and will not work as advertised on 120 Vac. The electrical =
requirements are for 230 volts up to 16 amps. To get the same kick out of =
a 120 volt device would need over 32 amps which is well in excess of the ty=
pical domestic branch circuit and if you are going to run a special circuit=
you may as well make it a 230 volt circuit.
=20
Dave Massey
=20
=20
-----Original Message-----
From: Jim Stone <1789alpine@gmail.com>
To: Pat Horne <patintexas@icloud.com>; Shop Talk <shop-talk@autox.team.net>
Sent: Sat, Sep 8, 2018 5:52 pm
Subject: Re: [Shop-talk] Battery Starter/Charger
That is true, but it will almost definitely be a transformer and many (most=
?) modern transformers can handle 110-220v, meaning only a plug converter w=
ill be needed. And, if the transformer isn=E2=80=99t compatible then it wo=
uld just be a matter of finding a comparable US one. For reference, my Clo=
re charger is 18v 500 mA.
Which does bring up one drawback of the charger packs: it just took me a mi=
nute to find the charger. Without one, the pack is essentially worthless. =
The Clore came with a cigarette lighter plug that is supposed to let you c=
harge it directly from a running car, but that never seemed to work. It mi=
ght just be a problem with my charger. I never contacted them to find out.
On Sep 8, 2018, at 8:56 AM, Pat Horne <patintexas@icloud.com> wrote:
One thing about the UK unit is that it will probably require 220v service.=
=20
Peace,
Pat
Pat Horne=20
We support Caldwell County Habitat for Humanity
_______________________________________________
------=_Part_54895_1080818061.1536495351679
Content-Transfer-Encoding: quoted-printable
<font color=3D'black' size=3D'3' face=3D'Arial, Helvetica, sans-serif'>
<div> <font size=3D"3">That's a bad assumption. It is much safer to a=
ssume you cannot switch between 110 and 220 with a transformer. Trans=
formers CAN be designed to be switch between the two voltages using dual pr=
imary windings allowing them to be configured in either parallel or series.=
Many pieces of equipment are so designed and many of those have a sw=
itch somewhere allowing the end user to select the appropriate voltage.&nbs=
p; When using equipment it is a good idea to look for this switch and, if f=
ound, make sure it is in the correct position.</font></div>
<div><font size=3D"3"><br>
</font></div>
<div><font size=3D"3">If no such switch is found, check the label. UL=
, CSA, CE, VDE and other approval agencies require a label indicating the i=
nput power ratings including voltage, frequency and power.</font></div>
<div><font size=3D"3"><br>
</font></div>
<div><font size=3D"3">Back when I was designing line powered stuff we desig=
ned around the voltage range of 90 to 132 (180 - 264) Vac so whether you ha=
ve 220, 230 or 240 should not be an issue for consumer products. Many=
electronic devices work over the range of 90 to 264 volts but this is beca=
use of some sophisticated electronics in the power supply section specifica=
lly designed to accommodate this range.</font></div>
<div><font size=3D"3"><br>
</font></div>
<div><font size=3D"3">The UK unit, if it is a transformer-based design, mos=
t likely is design for the EU market and will not work as advertised on 120=
Vac. The electrical requirements are for </font><font size=3D"3"><fo=
nt size=3D"3">230 volts </font>up to 16 amps. To get the same kick ou=
t of a 120 volt device would need over 32 amps which is well in excess of t=
he typical domestic branch circuit and if you are going to run a special ci=
rcuit you may as well make it a 230 volt circuit.</font><br>
</div>
<div> <br>
</div>
<div style=3D"clear:both"><font size=3D"4">Dave Massey</font><br>
<br>
</div>
<div> <br>
</div>
<div> <br>
</div>
<div style=3D"font-family:arial,helvetica;font-size:10pt;color:black">-----=
Original Message-----<br>
From: Jim Stone <1789alpine@gmail.com><br>
To: Pat Horne <patintexas@icloud.com>; Shop Talk <shop-talk@autox.=
team.net><br>
Sent: Sat, Sep 8, 2018 5:52 pm<br>
Subject: Re: [Shop-talk] Battery Starter/Charger<br>
<br>
<div id=3D"AOLMsgPart_1.2_bcad25e7-35d2-4035-be88-562f8298c782">
<div class=3D"aolReplacedBody" style=3D"word-wrap: break-word; -webkit-nbsp=
-mode: space; line-break: after-white-space;">That is true, but it will alm=
ost definitely be a transformer and many (most?) modern transformers can ha=
ndle 110-220v, meaning only a plug converter will be needed. And, if =
the transformer isn=E2=80=99t compatible then it would just be a matter of =
finding a comparable US one. For reference, my Clore charger is 18v 5=
00 mA.
<div><br>
</div>
<div>Which does bring up one drawback of the charger packs: it just took me=
a minute to find the charger. Without one, the pack is essentially w=
orthless. The Clore came with a cigarette lighter plug that is suppos=
ed to let you charge it directly from a running car, but that never seemed =
to work. It might just be a problem with my charger. I never co=
ntacted them to find out.<br>
<div><br>
<blockquote>
<div>On Sep 8, 2018, at 8:56 AM, Pat Horne <<a target=3D"_blank" rel=3D"=
noopener noreferrer" removedlink__85a00d6c-fcf0-465c-8079-4a2c0f471460__hre=
f=3D"mailto:patintexas@icloud.com";>patintexas@icloud.com</a>> wrote:</di=
v>
<br class=3D"aolmail_Apple-interchange-newline">
<div>One thing about the UK unit is that it will probably require 220v serv=
ice.
<div><br>
</div>
<div>Peace,</div>
<div>Pat<br>
<br>
<div><span style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font=
-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: no=
rmal; letter-spacing: normal; text-align: start; text-indent: 0px; text-tra=
nsform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-w=
idth: 0px; text-decoration: none; float: none; display: inline !important;"=
>Pat Horne </span>
<div style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size:=
14px; font-style: normal; font-variant-caps: normal; font-weight: normal; =
letter-spacing: normal; text-align: start; text-indent: 0px; text-transform=
: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: =
0px; text-decoration: none;">We support Caldwell County Habitat for Humanit=
y</div>
<br class=3D"aolmail_Apple-interchange-newline"></div>
</div>
</div>
</blockquote></div>
<br>
</div>
</div>
</div>
_______________________________________________<br>
<br>
<br>
<br>
</div>
</font>
------=_Part_54895_1080818061.1536495351679--
--===============1297417050773172722==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
_______________________________________________
Shop-talk@autox.team.net
Archive: http://www.team.net/pipermail/shop-talk
--===============1297417050773172722==--
|