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Author Topic: Solar Panels & FTTC  (Read 4964 times)

burakkucat

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Re: Solar Panels & FTTC
« Reply #15 on: June 16, 2015, 04:50:29 PM »

Would it not be possible that's it's making a capacitive coupling to ground or antenna?

There would be a very, very, minute degree of capacitive coupling, yes. To both legs of the differential pair, equally. But I think it would be very difficult (tending towards impossible) to measure or quantify. Certainly nothing to worry about.  :)
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burakkucat

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Re: Solar Panels & FTTC
« Reply #16 on: June 16, 2015, 04:55:37 PM »

This new link give some information on the regulation of solar panel emissions := 

http://www.southgatearc.org/news/2015/june/standard_for_photovoltaic_inverters_provides_relief.htm

Thank you for that link. I see it is relatively up-to-date and essentially provides some metrics to my caterwauling, above.  :angel:
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simoncraddock

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Re: Solar Panels & FTTC
« Reply #17 on: June 17, 2015, 12:54:04 PM »

I'm now running a HG612 inside a small home made Faraday Cage and in the past 15 hours no CRC/ES/SES errors have been recorded (yay) other than a handful that I've found were caused turning on/off my electric shower this morning. I'm tempted to try copper paint on the inside of the modem, the cage is rather a ugly thing.

Does anyone know if fitting a 'Delta Suppression Filter' to my shower will help matters?
Maplins list one but I'm not sure if this is ok with a 9kw shower, anyone?

http://www.maplin.co.uk/p/delta-suppression-filter-rg21x
« Last Edit: June 17, 2015, 01:15:39 PM by simoncraddock »
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Fritzbox 7490 l Plusnet FTTC

burakkucat

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Re: Solar Panels & FTTC
« Reply #18 on: June 17, 2015, 03:59:52 PM »

Does anyone know if fitting a 'Delta Suppression Filter' to my shower will help matters?
Maplins list one but I'm not sure if this is ok with a 9kw shower, anyone?

http://www.maplin.co.uk/p/delta-suppression-filter-rg21x

I'm not sure. I wouldn't think the shower's power loading is relevant.  :-\

Perhaps ask the question via the page on the Maplin website?

Perhaps NewtronStar will have an opinion? I know that he spent some time fitting surge suppression filters to various electrical devices in his home . . .
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lloyd

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Re: Solar Panels & FTTC
« Reply #19 on: June 18, 2015, 01:11:57 PM »

Out of interest, what make and model of inverter are you using?
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simoncraddock

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Re: Solar Panels & FTTC
« Reply #20 on: June 18, 2015, 03:56:51 PM »

Out of interest, what make and model of inverter are you using?

It's a Trannergy PVI4000TL

http://www.trannergy.com/product/detail.aspx?id=35&classId=144397762564194304
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Fritzbox 7490 l Plusnet FTTC

simoncraddock

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Re: Solar Panels & FTTC
« Reply #21 on: June 26, 2015, 12:21:36 PM »

Just a quick update...

The scaffolding in front of my home was removed a couple of days ago which was really tight up against my incoming line. Overnight DLM put the US back on fastpath, so just the DS to catch-up now.

Seems more than a coincidence that my line has improved since it was removed. Errors after 8 hrs are still at zero so hopefully it will act on the DS soon.
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Fritzbox 7490 l Plusnet FTTC

burakkucat

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Re: Solar Panels & FTTC
« Reply #22 on: June 26, 2015, 04:32:57 PM »

It is interesting you now have evidence that the scaffolding was having a detrimental effect on your circuit.

Knowing the effect and now knowing the cause, I wonder if anyone would like to propose a potential theory as to what was occurring?  :-\
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simoncraddock

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Re: Solar Panels & FTTC
« Reply #23 on: June 26, 2015, 05:36:12 PM »

It is interesting you now have evidence that the scaffolding was having a detrimental effect on your circuit.

Knowing the effect and now knowing the cause, I wonder if anyone would like to propose a potential theory as to what was occurring?  :-\

More coincidence than hard evidence, but I've reached 13 hrs up time with zero CRC/ES errors on both US/DS which is better than when it was in place.
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Fritzbox 7490 l Plusnet FTTC

burakkucat

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Re: Solar Panels & FTTC
« Reply #24 on: June 26, 2015, 06:28:46 PM »

More coincidence than hard evidence, but I've reached 13 hrs up time with zero CRC/ES errors on both US/DS which is better than when it was in place.

 :thumbs:   :fingers:
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WWWombat

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Re: Solar Panels & FTTC
« Reply #25 on: July 02, 2015, 10:17:45 AM »

I'd say it was managing to create some level of inductance or capacitance in the pair.

Perhaps the scaffolding was acting somewhat like the directors or reflectors in a Yagi aerial, with the pair as a dipole.
http://www.radio-electronics.com/info/antennas/yagi/yagi-antenna-theory.php
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