Published at Friday, November 16th 2018. by Jeanette Wright in Kitchen Table.
In this kitchen, tabletop talk, I'm going to turn my attention to the subject of voltage, optimization or voltage reduction, to give it a more accurate name and I'm going to demonstrate the principle with this conventional desk. Lamp fitted with an ordinary filament type spotlight bulb, and I'm going to plug at the desk lamp into this black box.
This black box is a voltage, optimization device is called a variable transformer, and the purpose of it is to allow me to vary the voltage at which the lamp is fit. So the other thing that I've got here is a power meter and the meter shows how much power in watts is being drawn by the voltage optimizer and the lamp that's plugged into it. You'll notice, there's a small reading, three-and-a-half watts registering already and that's because voltage, optimization equipment itself incurs small power consumption.
But when I turn on the lamp, you see that the power drawn jumps up to just over 50 watts, which is the rating of the bulb plus the voltage optimization gear taken together. Now, when I reduce the voltage, then I'm taking it down past 220. If you watch what happens on the power meter, you'll see that the power drawn reduces as the voltage goes down and I'll, take it right down to 180 volts so that you can see the effects of extreme voltage reduction there.
We are we're down to about 35 watts compared with over 50 when we are operating at full voltage. The desk lamp, meanwhile, is now glowing rather dimly and it's one of the side effects of the, of course, is that, as you can reduce the power input, you get less energy output, I'm going to turn the voltage back up again, you take it back up to 240 and you'll notice that the power consumed goes up and should end up where we started around 51, what's or so once I get voltage back up to 240. Here we are back to about 51 was okay.
So now what I'm gonna do is repeat the demonstration, but this time ouch, that's hot, I'm going to remove the filament light, bulb and replace it with an LED equivalent and, as I hope everybody knows, an LED light bulb gives you the same light output but Uses much less electricity, so here we are with the low-energy light bulb in place. We start without background three point: three watts of consumption turn the lamp on just let it register there we are.
The lamp is using about 10 watts now at 241 volts. Now I shall reduce this voltage again and, let's see what happens as I reduce the voltage see what happens to the power drawn by the lamp. It hasn't changed much so far, I'm going down to 190 or so they're 500 Maties. You know I shall stop there and I'll stop there, partly because an interesting thing has happened.
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