> From: Gene Heskett [mailto:ghesk...@wdtv.com]
>>
>> Going really OT here (and I should probably start a new thread for
>> this) - what beyond a 1:1 ratio makes a transformer an 'isolation'
>> transformer.
>>
>No ohmic connection between primary and secondary. If there is, and its
not just a
On Saturday 02 January 2016 05:52:55 Ben Potter wrote:
> > From: Gene Heskett [mailto:ghesk...@wdtv.com]
> >
> >> Going really OT here (and I should probably start a new thread for
> >> this) - what beyond a 1:1 ratio makes a transformer an 'isolation'
> >> transformer.
> >
> >No ohmic connection
On 01/01/2016 10:28 PM, Bertho Stultiens wrote:
> Short explanation:
> You must ensure that a grounding connection does not carry current and
> is located at such a point where a symmetric coupling can be achieved.
>
> A bit longer explanation:
[snip]
Just one comment on the explanation...
It is
On Friday 01 January 2016 18:04:34 Ben Potter wrote:
> > From: Bertho Stultiens [mailto:ber...@vagrearg.org]
> > A bit longer explanation:
> > See attached image. Outputs of the step-down transformer A and B are
>
> capacitively coupled to L1 and L2 through four parasitic capacitors.
>
> >
On 01/01/2016 08:24 PM, Rafael wrote:
>> There are a lot of good reasons to tie one leg the transformer to ground
>> besides to establish the safety ground and neutral as is common on the US.
>> Intermittent faults to ground, with an ungrounded system, can cause the
>> secondary of the transformer
> From: Bertho Stultiens [mailto:ber...@vagrearg.org]
> A bit longer explanation:
> See attached image. Outputs of the step-down transformer A and B are
capacitively coupled to L1 and L2 through four parasitic capacitors.
> Connecting A to ground when C1A not equal C2A or connecting B to ground
