How to Install Solar Panels Solar Panel Voltage Testing Meters
So now we've got our BX wire coming from the roof with our solar panel attached. And, we're going to test the voltage now, just to see that we've got what we think we have. Here we've got our positive and negative and we've got our volt meter set to DC power. We're reading 38.78 volts, so that's pretty close to our maximum that we expect from this style of panel. Because we can also test the amperage that comes out of this device. If you're, if you're only working with one panel like we are you can actually touch the wires together.
And see what kind of action you get. There's a little bit of plasma from our solar panel if you hadn't believed that solar is good, that's electricity. If we switch this over to amperage, DC Amps, we can slip our clamp meter right on top of there and we're reading at let's see, we'll zero it out. Zero there, and short these together again and momentarily read 2.6 amps. And if we do the math, 2.6 times 38, about 70 to 90 watts is all we're getting off of here. Which seems like it's a little low on power, but temperature deratings.
How MPPT Solar Charge Controller Protects Against Very High Voltage from Solar Panels SuKam
SuKam MPPT solar charge controller. Right now, we are checking PV high voltage protection in MPPT solar charge controller. For this, we have connected MPPT to 12V SuKam Bazooka tubular battery and for solar voltage, we have connected the system to PV battery supply. As the voltage from PV becomes more than 30V, the system will start showing PV high voltage protection. For this, we will increase the voltage from PV. As the voltage will go above 30V, PV high voltage system will be displayed. As we can see, PV high voltage protection is displayed. As the.
How to Install Solar Panels Battery Banks for Solar Energy
Now we come to our battery bank for our Solar system. This one is made up of six volt cells combined in different ways to get the voltage we need for our individual inverters. We're going to be using the big Zantrax 1,000 watt this time, so we'll need two six volt cells, in series, to come up with that twelve volts. If you take your battery and connect a positive to a negative terminal that leaves you with a positive and negative terminal and you can get your twelve volts here. If you connect four batteries in series, positive to negative,.
You come up with twentyfour volts. And if you needed a fortyeight volt system, which is not uncommon, you'd simply expand and use more batteries. But for a twelve volt system we'll just use two. And, they're really the most dangerous part of the system. If you look down inside there, you can see a liquid and that liquid is sulfuric acid and will really seriously burn you and that's why we have a base here, Baking Soda, and if you get that acid in your eyes or in your clothing you can neutralize it with this. So, very.
Important to have this for safety. We can get a look at some of that acid here with the hydrometer, this is what you measure the actual specific gravity of the acid inside. And you can see we have several of these disks floating. We have about three disks floating with one at the bottom. So we know that this two batteries, or at least this battery, is about seventyfive percent charged. So, we're going to be very careful with that acid and stick this back here in our little cup. It's also important to note that the gases that.
Brainy Eco Protection against high voltage Test
SuKam Brainy Eco solar home UPS. In this, there is panel voltage PV voltage protection is provided and we will test this. As you can see, instead of panel we are using DC source here. The voltage through panel is 20.27. Now we will connect this. As we connect solar, the colour of LED changes to yellow and charging ampere starts. Now we will increase the PV voltage. If PV voltage becomes more than 25V, then this PV will go in high protection mode. You can see that as soon as the PV voltage becomes more than 25V, solar LED starts blinking.
Mini Digital Volt Meter Ideas
I've got this homemade power supply that I've been wanting to put a meter on for a long time and in the past I had choices like analog meters and the they look like this minus the control down here. As you can see it's just too big, they take up a lot of space and they are not all that accurate. and then there's this bar type but the bar type well frankly it'll also take a lot of space and to not all that accurate. So the other day.
These have been out for a while, but the other I found one of these Thought I would put it on here. Let me tell you a bit about them They are rather interesting, little selfcontained digital volt meters This is a 3wire system and what that means is that you power the meter with voltage between the red and the black It can vary a lot. This particular one is between 3 and 30 volts it operates And that is these 2. And the sensing is a between the black wire over here and the white wire.
And it will sense the voltage and that's what comes out on the readout, what's between the black and white wires and ths one they told me will sense between between 0 and 50 volts. Right now I'm running it on a battery pack but by simply touching the white wire on the red wire I can measure the voltage of the battery pack which is showing 2.9 volts. I can power it with 1 power and measure something completely different. I can show you and example of that with a quick and dirty volt meter. Also this is all.
Selfcontained very tiny you can see. I can mount it on the outside It's got little ears. I've got lots of space for it right here. It not going to be an issue With the 2 wire system it takes about 3 volts before the display cames on So it obviously will not measure anything less than 3 volts but with this one I can measure, well right now I'm getting zero volts The power is on so clearly I can measure measure a lower voltage than it takes to operate the display LEDs.
That is the benefit of the 3 wire system. I can read much much smaller voltages down to 0.1 volts in this case As an example of what you can do with these digital volt meter displays I taped one you could mount it permanently on to a battery holder, there are a couple of battieries in there turned it on and then just connect the common black and the sensing on to my target and 1.50 volts and that's correct for this battery So now I have mounted this digital volt meter on to my power supply.
How MPPT Solar Charge Controller Prevents Reverse Current Flow from Panels to Batteries SuKam
SuKam MPPTsolar charge controller. Right now, we are going to check PV reverse current input in the system. For this, we have connected the MPPT solar charge controller with 12V SuKam Bazooka tubular battery. For solar voltage, we have connected MPPT with PV supply. We have connected a multimeter to the battery to check the battery voltage. In the evening, when input voltage from PV becomes less than the battery voltage, in that condition, reverse current starts flowing from battery to PV. In order to stop that, SuKam has provided PV reverse current protection in MPPT solar charge controller and we are checking that.
The Future of Solar Energy is TINY Technology!
The future is huge for tiny technology. Miniaturization is, perhaps ironically, a huge deal. I mean, without it we wouldn't have had the personal computer revolution and we wouldn't have this world we live in now, where we have smartphones and tablets and other devices just as powerful as a computer, that can fit in the palm of your hand. But even these gadgets are gargantuan compared to nanotechnology! See, a nanometer is just one billionth of a meter. And that's kind of hard to imagine, so let me put it to you this way.
Your typical sheet of paper is about one hundred thousand nanometers thick. And at this scale, individual elements are so small you can't even see them with a light microscope. Now as we learn more about how materials behave on the nanoscale, we have more potential applications to use that knowledge practically. I'm talking about how nanotech could help solar panel technology. And fortunately, at a recent meeting of the American Association for the Advancement of Science, or AAAS, they had a panel on just this very subject. Now if you know anything about solar panels you know they have some drawbacks. For example,.
Efficiency they max out at around twenty percent in the field under ideal conditions. They're also rigid, so you can't just put them anywhere you like. And they tend to be expensive because manufacturing them is complicated. But scientists hope that nanotechnology can help address all three of these challenges. Now with efficiency they're looking to nature specifically, moth eyes. You see, moths have these little tiny structures in their eyes that help reflect light back into the eye and it does two things it lets them see better in the dark, and it cuts down.
On reflection so predators can't spot them as easily. With solar panels it could actually make them more efficient by reflecting more of the sun's light into the panel so you lose less in reflection. And when we're talking about flexibility, well nanomaterials are really, really small, and there is the potential to create solar panels that are just a few sheets of molecules thick. They could be as flexible as a sheet of paper, and with that kind of flexibility you could put those pretty much anywhere you wanted to.
And as for price, well, that's the big one. And in the short term I don't think it's going to turn around. But scientists are cautiously optimistic that nanotechnology will let us use new processes, like printing solar panels directly onto a substrate using just a specialized printer. That would actually be less complicated and expensive than traditional manufacturing methods. Now at that meeting of the AAAS, a Dr. Wolfgang Porod gave a talk about Nanoantenna Thermocouples for Energy Harvesting. Which I admit sounds like technobabble straight out of a Star Trek episode.
But it's actually fairly simple once you break it down. A nanoantenna is just an antenna on the nanoscale. These resonate with longwave infrared radiation. And a thermocouple Well that's a component of circuitry that generates a voltage when one part of the thermocouple is a different temperature than other part. So you pair these two together and the antenna generates heat and the thermocouple generates voltage. It could actually help increase the efficiency of solar panels. Now like I said, nanotechnology is a young science and it has lots of different applications.
Across many disciplines. And I'm really excited how such a small technology could have such a huge impact. That leads me to this week's question. When I say the word nanotechnology what do you imagine What does that word mean to you Let us know in the comments below. Then, do me a nanosized favor and share this tutorial with your friends. If you enjoyed it make sure you hit the 'like' button and subscribe to our channel. Then check out these tutorials over here. There's some huge surprises in them.
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