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| photovoltaic monitoring http://currentcost.com/support/viewtopic.php?f=32&t=21809 |
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| Author: | emailfriendsuk [ Sun Feb 26, 2012 6:51 pm ] |
| Post subject: | photovoltaic monitoring |
hi, any chance of changing the CT sensors to one way flow, when using current this could show the live usage and show a red LED on the energy monitor, when current flows the other way this would not be recorded so would register as 0 and show up as a green LED . . . so from a quick glance across the room if its red i know i am importing and green i am exporting or if any one knows how to do this then post a comment |
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| Author: | johnlee [ Mon Feb 27, 2012 1:43 pm ] |
| Post subject: | Re: photovoltaic monitoring |
[quote="emailfriendsuk"]hi, any chance of changing the CT sensors to one way flow, when using current this could show the live usage and show a red LED on the energy monitor, when current flows the other way this would not be recorded so would register as 0 and show up as a green LED . . . so from a quick glance across the room if its red i know i am importing and green i am exporting No! Of course you _can_ get monitors that detect the direction of current flow, but the cc clamps are a relatively low cost, safe & non intrusive. They detect the magnitude of the current and can't tell its direction. It is possible to use connect 2 clamps and 2 transmitters and a monitor and then use software to subtract the house power from the solar to get the 'direction' but this needs a bit of computing power. To see how do that I'm afraid you'll have to do what you should've done before posting & read the extensive discussion about this on this forum! ie rtff... |
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| Author: | Kefalonia [ Fri Apr 13, 2012 12:51 pm ] |
| Post subject: | Re: photovoltaic monitoring |
Why dont Current Cost make a device that can accurately calculate Household electrical consumption, subtracting the generated exported solar power from the actual imported electricity? Many people would buy it. |
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| Author: | Automan [ Fri Apr 13, 2012 6:19 pm ] |
| Post subject: | Re: photovoltaic monitoring |
| Author: | SaFeHeX [ Sat Apr 14, 2012 1:13 pm ] |
| Post subject: | Re: photovoltaic monitoring |
I'm going out on a limb here, so i may be wrong but..... As far as i'm aware, current clamps (not neccesarily current cost clamps) would normally give out a positive or negative voltage depending on the direction of any current flow. Therefore, using two clamps connected together in series, in opposite polarity you would get a differential reading. One clamp would subtract the value of the other, so to speak. You would of course, only be showing a difference between on grid and off grid, not the total houshold consumption. I don't know if this is of any use to anyone or if it would work but maybe someone can do something with the idea? |
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| Author: | SeekerAfterTruth [ Sun Apr 15, 2012 3:32 am ] |
| Post subject: | Re: photovoltaic monitoring |
| Author: | SaFeHeX [ Mon Apr 16, 2012 5:20 am ] |
| Post subject: | Re: photovoltaic monitoring |
| Author: | SaFeHeX [ Thu Apr 19, 2012 8:36 pm ] |
| Post subject: | Re: photovoltaic monitoring |
| Author: | stuart10 [ Sat Oct 20, 2012 11:12 am ] |
| Post subject: | Re: photovoltaic monitoring |
Monitoring and control of photovoltaic systems is essential for reliable functioning and maximum yield of any solar electric system. |
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