Thanks for the awesome explanation. I have a new electronic version that'll do the switching without and mechanical parts, but now ai understand the theory. I live in Bulgaria in the mountains, so its a light line for our 9 houses connected to it, so summers are pretty much a constant 210V - 223V, but in winter with people running electric heaters it drops to 150V sometimes, which is only good to burn things out with.....like fridge compressors, and my electronic central heating pump dont know what to do with 150V either, so its a vital bit of kit here. Thanks again.
@bowaleadeyemi46422 жыл бұрын
I really like you clip, very clear and siimple.
@orlypalomar3 жыл бұрын
This is a common design 'flaw' on most servo AVRs. The servo is slower to correct for low input voltages (boosting) because the control board power supply (small transformer in the corner) is getting its power straight from the mains input. In other words, if that transformer isn't getting enough voltage (ie.
@NearFarMedia3 жыл бұрын
That makes sense. I wonder if using a slightly higher secondary voltage on the control board transformer and regulating it down would help things?
@Intusr2 жыл бұрын
How can we build a constant voltage stabilizer by diy ?
@OldMarius-gn5kk Жыл бұрын
thanks for this info. I live in an old house with shady electrical wiring where the lights and other electronics get affected by sudden power loss for less than a second whenever the water pump turns on. I thought an AVR should at least protect sensitive electronics but I guess I have to invest in a UPS.
@onerealfreak12 жыл бұрын
Thanks for this video. I actually have a servo AVR but it is not relating well.
@raportmercado11652 ай бұрын
somebody told me that there are SVR's just like the SVC-1010 and electronic ones called AVR's, which is the best for electronic appliances? I mean fast enough to catch up and down voltages.
@wedding40162 жыл бұрын
My brother, I have a Japanese regulator, Stack 500. Unfortunately, when I connect it to the electricity, the amp turns on, but the coil in your left hand is broken and smoke comes out of it, and the coal is not damaged and does not work...Is there any hope of fixing it and how is the way with thanks?
@SauvikRoy Жыл бұрын
Thank you for the teardown and explanation. This doesn't look like a good design: 1. What if the motor circuit fails, leaving the brush stuck at a point, maybe even the highest voltage gain of the autotransformer? 2. Unless there is some kind of delayed output, the previous position of the brush could potentially mean anything during startup. 3. If the voltage sags due to some heavy load the wiper would simply add more turns to increase the voltage. What if some lighter load is connected in parallel and the heavy load is disconnected? I might be wrong but I would love to hear how people might have worked out these risks!
@thienan64 Жыл бұрын
Have sell in VN ?
@ebuks4ever8 жыл бұрын
Thanks for this awesome explanation
@movax20h4 жыл бұрын
Not bad. But you can get some nicer models with a bit more protection and functionality. For about 100$ you can get 2000VA model with a MCB, output relay, adjustable hysteresis, under and over voltage protection (disconnect output when it can't compensate anymore), fan, fan fault detection, auto-reset overload protection, temperature sensor for transformer, auto restart with delay, multiple fault lockout (after 5 overloads in short succession it will permanently trip until manually reset), delayed start (after voltage goes back into range that can be regulated, or when turned first time on, the unit will adjust the servo to proper position and only then turn the output relay on), MCU contrlled, and most of the transformer fully resin poted. Yiyen Electric, SCV III series is really nice. The only deficiency is that they are fixed output voltage (can be probably changed with jumpers inside). But that is usually what you want. They also produce relay based ones. Still if you get this one for 10-20$ it is good enough for playing with it.
@joseabrahaoabrahao79375 жыл бұрын
Só de pensar que algum tempo atrás eu tive essa mesma ideia, mas é uma pena porque eu não coloquei em prática para desenvolver o projeto de um estabilizador automático. Eu fico feliz de ver que este funciona muito bem por mais que não tenha sido eu quem o projetou.
@NKBT4 жыл бұрын
Hello ! We are one of the leading manufacturers of IGBT Controlled Static Voltage Stabilizer with high precision, fast regulation and inbuilt circuit protections. You may check about it more on nkbtechnocratspltd.com/?page_id=125 Contact us on: nkbtechnocrats@outlook.com Call/Whatsapp: +91 9660061987
@Metalhead-4life4 жыл бұрын
so are voltage regulators quick enough for home theater components or would you just recommend a good line conditoner instead (without voltage regulation)?
@NearFarMedia4 жыл бұрын
They are good for regulating slower line voltage variations rather than transients and surges. If your home theatre is pulling the line voltage down, you'd have better results in upgrading your wiring etc. As for line noise, this may help a little due to the mass of the transformer, but it isn't designed to prevent noise and fast transients, only slower voltage fluctuations in the order of seconds or more, like when the grid is loaded up during the day and the voltage drops, but rises at night due to the light load.
@DarronBirgenheier6 жыл бұрын
Very nicely done
@sajidali750924 жыл бұрын
very interesting video. I want to learn more about this. can you give me a source where I could learn about the circuit on this board?
@NKBT4 жыл бұрын
Hello ! We are one of the leading manufacturers of IGBT Controlled Static Voltage Stabilizer with high precision, fast regulation and inbuilt circuit protections. You may check about it more on nkbtechnocratspltd.com/?page_id=125 Contact us on: nkbtechnocrats@outlook.com Call/Whatsapp: +91 9660061987
@hodanadan67012 жыл бұрын
Is the transformer step up or step down
@NearFarMedia2 жыл бұрын
Both! It's a motor controlled variac so it is able to vary the voltage up and down as needed.
@dadsmail7 жыл бұрын
Really informative video. I recently got a servo type avr and it does provide consistent output. I did notice though that within the 2 weeks that I've owned it, there were around 3 instances wherein the servo made a loud sound (similar to the sound in your video when the motor moves when there is an abrupt voltage change). I understand that the servo motor moves slightly quite often, but the ones I heard, though very rarely, make it seem that there is a sudden change in voltage. Didn't notice any fluctuation of electricity though. Is this normal?
@NearFarMedia7 жыл бұрын
It may have been compensating for a sag in line voltage. Could be from a storm, or something going wrong on the grid ora big factory starting some equipment or something...
@NKBT4 жыл бұрын
Hello ! We are one of the leading manufacturers of IGBT Controlled Static Voltage Stabilizer with high precision, fast regulation and inbuilt circuit protections. You may check about it more on nkbtechnocratspltd.com/?page_id=125 Contact us on: nkbtechnocrats@outlook.com Call/Whatsapp: +91 9660061987
@JoeJacksonJr8 жыл бұрын
Do these produce a true sine waveform? My gut says they should but I been wrong before :-)
@NearFarMedia8 жыл бұрын
This one does. It is just a variac transformer, so no switch mode or inverter stuff at all. The output is as clean (or dirty!) as the input. :)
@allthegearnoidea67525 жыл бұрын
What a interesting bit of kit and I love the analog nature of this device. Do you know what it was designed to supply?
@NearFarMedia5 жыл бұрын
I think it is just for any application that needs a stabilised supply. Stuff lab gear, test equipment, even high end audio gear.
@avcomth5 жыл бұрын
This seems slow compared to the relay based AVR, but again the relay based AVRs are choppy because it can only correct the voltage in "ranges" and it also creates sparks when a relay snaps into position.
@NearFarMedia5 жыл бұрын
Yeah, it is a little slow, but it's designed more for slow voltage fluctuations like on-peak/off-peak voltage swings during a day rather than voltage transients.
@NKBT4 жыл бұрын
Hello ! We are one of the leading manufacturers of IGBT Controlled Static Voltage Stabilizer with high precision, fast regulation and inbuilt circuit protections. You may check about it more on nkbtechnocratspltd.com/?page_id=125 Contact us on: nkbtechnocrats@outlook.com Call/Whatsapp: +91 9660061987
@NKBT4 жыл бұрын
@@NearFarMedia Hello ! We are one of the leading manufacturers of IGBT Controlled Static Voltage Stabilizer with high precision, fast regulation and inbuilt circuit protections. You may check about it more on nkbtechnocratspltd.com/?page_id=125 Contact us on: nkbtechnocrats@outlook.com Call/Whatsapp: +91 9660061987
@German_byte6 ай бұрын
There’s no isolation between input and output is there. Not that there’s a 240 volt input.