Powering up a High Pressure Sodium lamp - The wrong way (without an igniter)
Ғылым және технология
This evenings experimentation consists of attempting to start a High Pressure Sodium (HPS) lamp with a microwave oven transformer at 2kV.
I must apologise for the flickering in the video - these lamps are so bright the camera just is not happy about it.
The starting process for these lamps is very simple. 240V (ballasted equal to the rating of the bulb) is applied to the terminals of the bulb. Since there is no internal electrical connection, the bulb does not light. An initial pulse of a high voltage is required to start these lamps, typically between 3kV and 4.5kV. However, 2kV from a simple Microwave oven transformer seems to be enough.
Once the arc is going, the high voltage source can be disconnected and the lamp remains lit, since the arc can be sustained by the ballasted 240V input. As the lamp warms up it produces more and more light.
This is a small 100W HPS lamp, and it produces nearly 10,000 lumens of light when at operating temperature. That's pretty impressive for 100W, and that's why these lamps are so efficient.
To correctly ignite a HPS lamp a device called an igniter is used. This tiny device will provide the starting pulse to initiate the arc.
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I love how youtube just recommends me these videos from almost a decade ago.
Unique atmosphere in this video.
The 2kV transformer will deliver over 1000W as is, and the lamp is only rated for 100W. Because arc lamps are negative resistance devices, it will pull the full 1000W and probably end in a melt down.
Normally these bulbs are started with between 3 and 4kV from a device called an igniter. Here I am not using one but I am instead using the 2kV from a microwave oven transformer to start the lamp. And it does work just as well, only I'd have to manually connect and disconnect the transformer every time I want to turn it on.
@giaptheson
Жыл бұрын
What? High voltage?
I succeeded in getting HPS, CDM/HQI and SOX lamps started with nothing more than a relay, a capacitor and an arduino to control it. Unreliable? Somewhat. the arduino crashed a lot but whenever it successfully made it through the loop of code I set up for it it struck the lamp 9/10 times.
Yes they do, when cold they behave just like a neon lamp (since the tube contains a neon/argon mix) and require a high voltage to initiate the arc.
Unfortunately it does require a ballast to limit the current, and without a high voltage source it won't even light.
I have a 1000 watt one!!!!! Your right its bright!! one bulb lights my barn!!
Very neat
Wow ! Energy Saver !
You have gain my subscription
It sure is! And this is only a 100W model - as far as I know they go up to 1000W.
Dan, could you do a video explaining the components and procedure for building the variable ballast that you use?
Hi Dan I have a problem with my hps.. After it turned on, the bulb start to flickering, not so much, but is visible.. When this happen the ballast make weird noise (like a buzzing hum)
HOW CAN YOU TEST THE IGNITOR? RUN 120 TO IT HOT/COM, AND CHECK THE LEAD WIRE AND COMMON? SEE WHAT VOLTAGE YOU GET ?? THANKS FOR ANY HELP !!!
When the bulb is old (hps) the estart make a blue ligth?
Not actually that much. Probably no more than a standard incandescent bulb. The arc tube inside however gets extremely hot - hence it glows red when the lamp is turned off.
So where exactly is he applying the high voltage is it at the hot side or the neutral or am I missing something plez help
i have MH light 600w can i use it without "blasster" ?
good idea but dangerous a question your frequency is 50 Hz hum wonder transformers
Can u tell me how u wired it? And will it work wit a mercury vapor bulb?
We have bought some lights that work with high pressure sodium lamps 100w and 150w but we have a problem the lamps are switched on and once it reaches its maximum brightness, the lamp stop to work, and the ignition cycle is starting again and this condition is continuing without end, please if are you able to tell us what's going on with these lights?
@xsauce3858
2 жыл бұрын
Bulb aged. Need a new bulb. That effect is called cycling.
2:15 why is it glowing and Do you know why the camera flickers? because the light flickers. You can record slow motion to it It will be cool. In slow mo, the light is on length is like 2 sec, and turning off length is like 1.5 sec.
I did this with a metal halide lamp some time ago and it destroyed the transformer secondary
every trasnformer's primary windings could act like a ballast for a surtan lamp. (sorry for the mistakes in the words )
Hi! Very nice video! Could you sent me a circuit? Or just tell me, how did you conect the MOT to ignite the lamp? Could I just manually limit the voltage and current instead of using the ballast? Thanks!
@TheAwesomeManDan
10 жыл бұрын
Sure, here's a schematic: imgur.com/NoliPeP Terminals [1] are connected together momentarily to ignite the lamp. Provided the lamp's rated voltage and power are not exceeded a ballast is not required to run it.
@ElectronPower
10 жыл бұрын
DanTheAwesomeMan Thanks man! :)
can this lamp' be plugged into a regular light or mogul socket..or does it need a ballast to work ?
@xavier6130
3 жыл бұрын
It *needs* a ballast to work.
mot lamp
Can you name everything that you need to actually light the sodium vapor light? Because I ordered the lamp thinking it was just a regular light bulb but turns out it didn't work. Please help me
@stoopidhaters
4 жыл бұрын
Omg, I can't believe you did that. You could totally wreck it doing that. You need a Ballast.
@felixboian-togyik3346
3 жыл бұрын
The bulb could've exploded in the socket from mains without the current regulation of the ballast..
I could hear a clock ticking in the background.
Lottery my bedside lamp not joking, hps desk lamp lol
@negomireanudarius3380
5 жыл бұрын
No
@stoopidhaters
4 жыл бұрын
Omg, you should show us a video of your setup.
Do low pressure sodium lamps also require an igniter of high voltage?
@thepurdychannel8866
4 жыл бұрын
Yes
@2Steppa2
2 жыл бұрын
Or a leak reactance transformer (the older method)
Bhai hamar pass ek light ha uska transformer kharab ho gaya ha ek bar
Streetlights in the past be like:
@spicyzzboyzz4381
5 ай бұрын
Fr💀
PS: subscribed ;)
I started my 70w using teslacoil.
@Bigmeatslapper
3 жыл бұрын
wait so if you connect the lamp to 120vac then put it near a tesla coil it ignites? sorry im a bit late to ask but please help
why we need to use the balast? if it purpose is light so we just use the standart bulb and we have light and for more light we can install two bulb without any balast. i dont understand his purpose at all
@xellisrevilo
6 жыл бұрын
Its to limit the current
@tteuvky
6 жыл бұрын
why we dont plug it where it have enough current so we will not need to use the ballast like we do with Lamp Holder like in the next link we can see there is no ballast. www.ikea.com/us/en/images/products/hemma-cord-set-white__0497913_PE629379_S4.JPG
@waleedahmed4591
6 жыл бұрын
arc lamps has tendency to pull up more current after time and the current increases so much that it blows up so a ballast is used to control such huge current
@diecksl
6 жыл бұрын
As the metal vapor inside lamp heats up, its resistance decreases. The lamp uses more and more current until it destroys itself. The ballast limits the amount of current to the lamp to a healthy level.
@thedogememesproductions6354
6 жыл бұрын
It's called Negative resistance were it pulls as much current as possible
1:50 ahhhhh chernobyl!!!
hows it meant to be done? looks like its working fine.
@LuciSheppy
6 жыл бұрын
TheWhooo123 lol
man that clock is loud
@spicyzzboyzz4381
5 ай бұрын
Bro that's noise buzzing sound.
hpmv lamp cha daigram
О мой любымый днатик(Дуговая НАтриевая Трубчатая) лампочка
XD
see my vid called hps run