Thanks Larry, this is one of the best explanations I have seen. I am saving it
for my customers and students. I would emphasize the C/20 (as you said) or a
little less for perhaps C/30 for this long term equalize or desulfation. Too
fast an equaliziation can loosen (blow the plate material off
Thank you Darryl.
The important thing is internal temperature. Any current up to the
manufacturers specification can be used but C/20 means I usually don't need to
baby sit the battery temp during long term recovery attempts. Adjust
accordingly.
One thing I didn't mention is that it's not harmf
I don't think the goo filled wire nuts are a problem, it would just prevent
corrosion from entering into the connection a few years down the road.
Remember that we are supposed to have a solid mechanical connection before
we put on the wire nut. I always look at it as the nut just keeps me from
Wrenches,
Is it a "special" transformer that will give you the 180 deg phase shift
from the original 120 deg shift?
Thanks
On Fri, Oct 21, 2011 at 5:52 PM, William Miller wrote:
> Friends:
>
> I posted a question here about three weeks ago on the subject of connecting
> a dual SW inverter stac
Dear Anonymous:
Define special. I am not certain what your question is, but I will provide
some information that might help.
One part number for an applicable device is : C1F007LES.
The link to this product
is: http://www.alliedelec.com/search/productdetail.aspx?SKU=8680214
I hope this
Wrenches
I was just about to order a pallet of Yingli 255 modules and noticed the
spec sheet calls out Amphenol H3 connectors. I looked at the spare 230W
module in the shop from a July install and, just as I remembered, it had MC
connectors. So I looked at the latest 230W module spec sheet an
Mac,
You can't get a 120 degree phase shift from a transformer with windings on a
common core. Two transformers can be combined in a "Scott-T" configuration" to
synthesize a 120 degree shift, but special transformers are required. Also, a
Scott-T configuration must be used with closely balanc
Dan:
We are not desiring 120 degrees. We are desiring 180 degrees, and it can
be derived, and without a Scott-T. I have done this recently.
William Miller
At 08:26 PM 10/23/2011, you wrote:
Mac,
You can't get a 120 degree phase shift from a transformer with windings on
a common core. T
Hello William,
It works as long as you tie into just one phase of the three-phase system for
the input .. from which you can then derive single-phase output. A 180 degree
shift is also do-able with multiple output windings in the transformer.
Still recovering from SPI. It was a *long* week.
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