[sudo-discuss] 120V isolation transformer?

[robb]

thx Patrik!

On Thu, Aug 25, 2016 at 3:24 PM, Patrik D'haeseleer <patrikd at gmail.com>
wrote:

> We actually do have a transformer in CCL - just bought one not too long
> ago, because we were planning to do some messing around with high
> voltage. It's at the end of one of the lab benches, right next to to the
> rotovap. Has 110V and 220V outlets, and should be able to do up to 1500W.
>
> I *think* it's an isolation transformer rather than an autotransformer,
> but I couldn't actually find any documentation saying so explicitly, so
> someone should check first! You should be able to check resistance between
> input and output windings - if it's an autotransformer there will be a
> direct copper path between input and output; if it's an isolation
> transformer the two should be disconnected.
>
> We bought this one for CCL (cheaply, but with, like, actual real money!),
> so please put it back after you use it...
>
> Patrik
>
> On Thu, Aug 18, 2016 at 11:05 PM, Jake <jake at spaz.org> wrote:
>
>> does sudoroom have an isolation transformer?  it's something that plugs
>> into a regular outlet and outputs the same voltage, but it's isolating.
>>
>> we have a couple of universal AC converter boxes which provide 240VAC
>> when you plug them into 120VAC but they are "autotransformers" and they
>> don't isolate.
>>
>> I want us to have an isolating transformer so that when people experiment
>> with AC-powered devices, they are much less likely to suffer a lethal shock
>> and die.
>>
>> note:  some voltage-regulator transformers are isolating, but since they
>> distort the waveform in order to achieve the voltage stabilizing, they are
>> not ideal for our purposes.
>>
>> thank you,
>> -jake
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>>
>
>
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