@oH well,lord! No, crystals are usually all boxed up in metal to shield them. This is just two layers of metal L shapes with some polimer between them. That polimer is conductive with small resistance. When overcurrent occours. It starts to heat up and the resistance goes up as well. Lowering the current. Thus - Overcurrent protection - "fuse". Resetable because when cooled down. It is conductive as before. PS: It is called polyfuse because it is polymer - fuse... polyfuse.
I use server power supplies for my big zvs and half bridges. They are rock solid and well built. Once you figure out how to turn them on, they last forever.
The more of these videos I watch the more I grow to like this guy. Glad I finally started watching after someone mentioned this channel in a BigClive video. :D
@@simontay4851 lol some people just dont understand how the world works... it prevents real development when people believe the impossible. Overunity is as crazy as lifting yourself by your own shoelaces...
9:55 Yes and no. 16A is(probably)most popular barker but there are lower and higher barkers. In my house the biggest barker is 20 A (if i good remember) and come to kitchen, second is 3 phase and come to my workshop where is used as 3 single phases but before was used to power boiler. So depends what do u define as normal European socket.
Good detailed video, thanks for the share. Probably there is a boost type pfc circuitry. So they need to limit the inrush current because in boost topology you can not limit the capacitor current by switching transistors at the begining. Ptc and relay is the easiest way to do this.
I'm see three on eBay right now, one of which is around $40 before shipping. I can't imagine anyone still using an ancient SAN like that so most units are probably just scrapped. If you know the right person I'm sure you could grab one on its way out.
Regarding ultra high-power load testing..... Iv tinkered around with a lot of affordable DIY options.... And have a few massive programmable benchtop units when I really need the precision and control. For a cheap "dumb" dummy load,.... Hot water heater elements and heating elements work great. (like the one shown in your video). I've even made some super high power load testing modules by using hot water heater element. And if I really need the extra power......they can be submerged in coolant. I run across high-voltage oil from time to time randomly... when tinkering with x-ray machines, or those huge rear projection televisions from the 90s, and many other sources. The high-voltage oil is great stuff but super expensive if you have to go out and buy it. you can get a paint can, 5-gallon bucket, or whatever you have and make a dummy load that is capable of super super super high power continuous operation. But for safety be sure there's a pressure valve or some way for it to be monitored and vent if it starts boiling the oil/coolant. You can go to any hardware store to find elements and stuff like that... Or you can go to pretty much any landfill or scrap yard and to find countless heating elements out of furnaces and things like that... Which are usually made out of nitinol filament wire and we'll isolated on ceramic rods and whatnot. Are fooling is totally fine but If you're going to use it regular, then it's probably safer and will last longer if you take a few minutes to figure out an enclosure, possibly submerging and coolant, or just some way to have a somewhat permanent set up so it's a bit safer. The last thing you want when load testing something powerful is for things to be shaking or knocking around. Not only do you have the dangerous electricity but now you have something capable of starting at fire 😂 I'm not into radio and RF stuff but I've even seen guys on the radio and EEV forums make compact RD loads in paint cans with compact heating element submerged in oil. They just have to match the impedance and stuff like that I guess . But it must work well enough for a lots of folks to have done that. Radiofrequency stuff it might as well be black magic to me.... I don't have the brain cells for it. But I still thought it was interesting to see
Okay holy shit .....I didn't even realize it... But Google the Heathkit "cantena" 😂 Im not even joking ..... that popped up on my recommended just minutes after making this comment. I had no idea companies actually offered something like that I had always just seen it done DIY.
A lot of EBM fan parts (stator with shielding and cables) is manufactured in east of Czech Republic (Kralovehradecky kraj - city Velké Poříčí). Then are parts transported to Germany a assembled into complete product.
Very nice autopsy of this big Server PSU. According to the output connectors i would guess it is meant for 60+ Amps, can even be 100 and more amps! I have one, a Cisco WS-CAC Catalyst, which come in several power versions up to 9 kW! I have the 6 kW version and it has 2 mains input adapters to share the input power on european household sockets. You could do a load test with a big resistor under water to get rid of the heat. When you load it that much with open case you can easily overheat some semiconductors because the fan cannot work effectively. It needs to blow the air through the tunnel over all heatsinks, otherwise they may overheat quickly. I was able to modify my Server-PSU to variable output from around 36 to 52 V - it is normally meant for 42 V output. Its very tricky tough, so you might give it a try? Would be great to know what kind of PSU it is actually. Where did you get it from?
@@simontay4851 even though its in the kw range doesnt mean that... the voltage is to high for a continuous short circuit. A Microwave transformer with 2 turns of some thick wire will yeild 2 volts at 1000 amps and would work much better.
After much digging, given only the date and it's a EMC Symmetrix SAN (other comment). EMC Symmetrix 8830 (rebranded 8730), it's the only system they sold in 2002 that had the AC-DC and DC-DC PSU modules. That PSU (and 2 others) powers 3 entire racks of computer. My 2.4kW SMPS with PFC draws 10A but has 20A fuses, given this has 30A fuses it's going to be at least 3.6kW.
Confusingly enough these are also called "rectifiers". I've seen 3 next to each other in a 19 inch frame. Not part of a server, more something to be installed top-of-rack.
@@DiodeGoneWildIN many videos I've watched I've seen those $1 multimeter in series with bulb, I tried replicating that and ended the multimeter's life.
1:20 without downtime. there are usually 2 power supplys with 2 power lines. In best cases from both high voltages trafostations. Something about this interesting area in this Czech article about TIER IV techology. datacentrum.wedos.com/a/375/tier-iv-napajeni.html
24:52 same my Sony amplifier from 2015 has a 45v cap when i meansure the voltage it is 56 v and its conected in series butt the trasformer is has center tab (ct)
Oh, it really means "A method of preventing burning damage when the motor is restricted from rotating; done by setting the motor winding impedance (AC resistance) to a value giving a temperature rise in the windings below the temperature at which burning occurs."
What! No schematic (covered by the cat of course :-) ). Great explanation. The smaller board seemed to generate 400V DC (If I'm not confused), which would be great for any ham radio constructor who builds valve/tube circuitry. It would easily power a valve/tube transmitter.
@@DiodeGoneWild I would guess it doesn't have any speed control and it only starts slowly due to its mass. I have a similar construction 120vac fan which takes over half a minute to get up to speed. In 2002 temperature controlled PSU fans weren't standard on desktop PC power supplies, let alone in a server room where noise is acceptable.
@@krnlg A place where I used to work found out the hard way that it's a Bad Idea to put the "door open" button next to the "emergency isolate" button. And no, it wasn't me.
Ahhh, at 19:27 he goes on 'bout a control chip or a diode, a UC .38 .45 (one of the Thievery Corporation my favorites). What are the odds for that. Your videos bro, are full of Easter Egg surprises...
That's a big one, but I'm wondering how can I contact you as I have problems with mine stuff and I'm not sure who to ask for what replacement components I need or correct.
Server room has built in welder :)
For quick fix problems
DiodeGoneWild: So today let's make another short video....
Also DiodeGoneWild: 35:30 minutes
😄
I think by "quick" he means quick to produce, not watch ;))
@@RicoElectrico 👍
That's a power supply from an old EMC Symmetrix storage array box and a pretty early one. Part number SPS5390-3
You are right.
Based on the part number, is the output rating 53V 90A?
27:55 its a Thermal fuse (polyfuse)
Yep. These suckers really doesn't like reflow more then once.
@oH well,lord! No, crystals are usually all boxed up in metal to shield them. This is just two layers of metal L shapes with some polimer between them. That polimer is conductive with small resistance. When overcurrent occours. It starts to heat up and the resistance goes up as well. Lowering the current. Thus - Overcurrent protection - "fuse". Resetable because when cooled down. It is conductive as before. PS: It is called polyfuse because it is polymer - fuse... polyfuse.
I use server power supplies for my big zvs and half bridges. They are rock solid and well built. Once you figure out how to turn them on, they last forever.
The more of these videos I watch the more I grow to like this guy. Glad I finally started watching after someone mentioned this channel in a BigClive video. :D
Welcome to fun club :-).
Liked before even watching always good content....keep it up
Same
With some channels I always do it. Just so that I don't forget, since they definitely deserve it.
@@Timtron432 yup
@Rajvansh Singh Same name dude!
Same
35:28 NAAAAAAIIIIIIIIIS!
Super interesting as always!
Well you have a perfect power supply for induction heating, molten solder pot or something like that. Really nice!!!!
27:51 It is a polyswitch. A auto resetting fuse basically.
Oh fucking shut up. There is no such thing as over unity anything, least of all transformer.
@@simontay4851 lol some people just dont understand how the world works... it prevents real development when people believe the impossible. Overunity is as crazy as lifting yourself by your own shoelaces...
@@Timtron432 what the fuc?
@@eccaireisocorellini6497 Indeed! I thought the yellow chicken/rooster and Peter just tumbled into the comment section.
Wooow... Very nice!!! I can't wait to see the experiments that you are going to do with it!! Thumbs up! 👍👍👍
The power supply looks very serious. Good explanation keep it up.
27:50 that's a self-resetting fuse
It's an EMC (now Dell) SYMMETRIX power supply, SPS5390-3, 071-000-181 Rev1.3, You can find some on eBay, the price ranges from €125 to €800+ !
Good video. The engineer cat always is indispensable. This power supply is very interesting to using for emergency.
That is some seriooos powerrr
0:01 "So, today let's make another quick video..."
Quick video: ha ha time go brrrrrr
Really enjoy the uncut videos
Thanks for sharing
Beautiful piece of engineering
9:55 Yes and no.
16A is(probably)most popular barker but there are lower and higher barkers.
In my house the biggest barker is 20 A (if i good remember) and come to kitchen, second is 3 phase and come to my workshop
where is used as 3 single phases but before was used to power boiler.
So depends what do u define as normal European socket.
no screws remained.... Niiiiiceee! 😊😊❤
32:10 RIP your floor.
It's already been RIP for many years, no worries :).
@@DiodeGoneWild You still have a little catching up to do to reach Nirvana PhotonicInduction level =o) of floor surface.
Good detailed video, thanks for the share. Probably there is a boost type pfc circuitry. So they need to limit the inrush current because in boost topology you can not limit the capacitor current by switching transistors at the begining. Ptc and relay is the easiest way to do this.
I love how you perch the heater on a _Puny_ 400w Case, in comparison to the Hulk beside it!
I always have left over screws. Nice
Hi DiodeGoneWild, can you please review or teardown an Uninterruptible Power Supply for Computers.
I love your power supply related video.
21:43 it is not a hi power ceramic resistor but a moisture or humidity sensor also known as dew sensor.
That PSU belongs to an EMC SYMMETRIX SAN. Can't find the power rating but I can find them for sale for 600 USD.
Blody expansive
Where the hell did he get hus one then. Im pretty sure he didn't pay 600 anything for it.
HIS one, not hus.
I'm see three on eBay right now, one of which is around $40 before shipping. I can't imagine anyone still using an ancient SAN like that so most units are probably just scrapped. If you know the right person I'm sure you could grab one on its way out.
What a good satisfaction after watching this video 🙂
Definitely NOT a dodgeee supply! :) That is a thing of beauty!
Hi Dany, the Metal Components on the Control Port are older Style PTC Fuses, Cheers, Konstantin
Regarding ultra high-power load testing.....
Iv tinkered around with a lot of affordable DIY options.... And have a few massive programmable benchtop units when I really need the precision and control.
For a cheap "dumb" dummy load,.... Hot water heater elements and heating elements work great. (like the one shown in your video).
I've even made some super high power load testing modules by using hot water heater element. And if I really need the extra power......they can be submerged in coolant.
I run across high-voltage oil from time to time randomly... when tinkering with x-ray machines, or those huge rear projection televisions from the 90s, and many other sources. The high-voltage oil is great stuff but super expensive if you have to go out and buy it.
you can get a paint can, 5-gallon bucket, or whatever you have and make a dummy load that is capable of super super super high power continuous operation.
But for safety be sure there's a pressure valve or some way for it to be monitored and vent if it starts boiling the oil/coolant.
You can go to any hardware store to find elements and stuff like that... Or you can go to pretty much any landfill or scrap yard and to find countless heating elements out of furnaces and things like that... Which are usually made out of nitinol filament wire and we'll isolated on ceramic rods and whatnot.
Are fooling is totally fine but If you're going to use it regular, then it's probably safer and will last longer if you take a few minutes to figure out an enclosure, possibly submerging and coolant, or just some way to have a somewhat permanent set up so it's a bit safer. The last thing you want when load testing something powerful is for things to be shaking or knocking around. Not only do you have the dangerous electricity but now you have something capable of starting at fire 😂
I'm not into radio and RF stuff but I've even seen guys on the radio and EEV forums make compact RD loads in paint cans with compact heating element submerged in oil. They just have to match the impedance and stuff like that I guess . But it must work well enough for a lots of folks to have done that. Radiofrequency stuff it might as well be black magic to me.... I don't have the brain cells for it.
But I still thought it was interesting to see
Okay holy shit .....I didn't even realize it... But Google the Heathkit "cantena" 😂
Im not even joking ..... that popped up on my recommended just minutes after making this comment. I had no idea companies actually offered something like that I had always just seen it done DIY.
So many technology even back in the times of those metal caps transistors!
Excellent build quality at that time.. 2002 🤔
Explained very well... 👍
Lots of information. Thank you sir
Heyyy!! Congratulations!!! You have reached 150000 subscribers!! 😃👍🎉🎉
A lot of EBM fan parts (stator with shielding and cables) is manufactured in east of Czech Republic (Kralovehradecky kraj - city Velké Poříčí). Then are parts transported to Germany a assembled into complete product.
Could You Talk a bit more about different cores - which one to use where?
Very nice autopsy of this big Server PSU. According to the output connectors i would guess it is meant for 60+ Amps, can even be 100 and more amps! I have one, a Cisco WS-CAC Catalyst, which come in several power versions up to 9 kW! I have the 6 kW version and it has 2 mains input adapters to share the input power on european household sockets. You could do a load test with a big resistor under water to get rid of the heat. When you load it that much with open case you can easily overheat some semiconductors because the fan cannot work effectively. It needs to blow the air through the tunnel over all heatsinks, otherwise they may overheat quickly. I was able to modify my Server-PSU to variable output from around 36 to 52 V - it is normally meant for 42 V output. Its very tricky tough, so you might give it a try? Would be great to know what kind of PSU it is actually. Where did you get it from?
Please Do A Load test video of these power supplies..
Nice video , with that power and voltage output can this power supply do arc welding ?
22:05 is a polyester non polar capacitor
Even your (unedited) videos are FAR, FAR better than anything that's on that foul "trending" tab. This is the kind of content I can get behind.
25:17 What does impedance protected mean?
If the fan is blocked by dust or bearings failure the current in his windings is limited by his same impedance. This allows to avoid fires.
where did you get it? i am interested in having my own!
"Back together and no screw remained...Niiiiiice." LOL.
"so today lets make another quick video"
the video: 30+ minutes
thats what i'm talking about
It is a quick video just play it 4x
Quick for DGW because not much editing. Not quick in length.
You could build an arc lamp with carbon electrodes and power it with this power supply.
Thank you ☺
He could also make steel tools glow red hot.
@@simontay4851 even though its in the kw range doesnt mean that... the voltage is to high for a continuous short circuit. A Microwave transformer with 2 turns of some thick wire will yeild 2 volts at 1000 amps and would work much better.
I wouldn't risk it if it were my power supply. Save those projects for a more basic and robust power supply like a rewired microwave transformer.
really want to attach zvs driver here)
Yeah, you would need some beefy transistors for that though.
@@Timtron432 "theres no free energy, crazy energy and overunity!!!!!" (c) Mehdi aka electroB00m
How much does each cost?
Way more than you could afford.
I don't know.... the way IT management works, you could probably fish it out of the trash for nothing.
Good power supply for telecom !
32:00 absolute unit
Have your figured out how to vary the voltage yet?
🙌🙌🙌One Fan For A Huge Power Supply!
“ edge cutting technology “ hmm... 😀😀
Also know as a knife ;)
Diode, stop it, your long videos are very good.
Module looks like some big dpc UPS, as APC Symmetra, ac input block
At least once you have impressively well designed power supply to dissect. :)
how much is that oscilloscope?
Are we getting a schematic for this one?
Can you share the number of the control ICs?
After much digging, given only the date and it's a EMC Symmetrix SAN (other comment).
EMC Symmetrix 8830 (rebranded 8730), it's the only system they sold in 2002 that had the AC-DC and DC-DC PSU modules.
That PSU (and 2 others) powers 3 entire racks of computer.
My 2.4kW SMPS with PFC draws 10A but has 20A fuses, given this has 30A fuses it's going to be at least 3.6kW.
Confusingly enough these are also called "rectifiers". I've seen 3 next to each other in a 19 inch frame. Not part of a server, more something to be installed top-of-rack.
@@Timtron432 we heard you the first time.
You could've measured the efficiency at that huge load
The component with 2 sheets of metal is a reversible fuse.
SIR JO AAPNE POWER BANK BANAYA THA VO MUJHE CURRIEAR KARVA DEWJIYE
Hey, @diodegonewild how do you measure ac amp using a cheap multimeter which supports only DC current.
I don't do it :).
@@DiodeGoneWildIN many videos I've watched I've seen those $1 multimeter in series with bulb, I tried replicating that and ended the multimeter's life.
You don't. You buy a meter that CAN measure AC.
I understood, but I'm confused how did that cheap multimeter in previous video showed AC amps reading.
You should check out the Arm DSO 213 nano I have one on my list but haven’t got it yet. Thanks for sharing
Wow, sounds like a Boeing starting up.
For me it sounds like Airbus A320
1:20 without downtime. there are usually 2 power supplys with 2 power lines. In best cases from both high voltages trafostations.
Something about this interesting area in this Czech article about TIER IV techology.
datacentrum.wedos.com/a/375/tier-iv-napajeni.html
You should have added a picture of your electricity meter spinning at high RPM as your electricity bill soared!
Yep, it will be a close race between meter and fan!!
What's the voltage of the fan is it 220v / 12dc ?
the fan is 24V.
24:52 same my Sony amplifier from 2015 has a 45v cap when i meansure the voltage it is 56 v and its conected in series butt the trasformer is has center tab (ct)
What about the fan from provius server power supply ?
33:45 There are missing "Even more saaalt!" part probably
What's that impedance protected marking on that cooling fan means??
I've seen more like this on 230V~ AC Fans..
maybe it means the grille impedes your fingers from touching it, thus protecting it from damage?
Oh, it really means "A method of preventing burning damage when the motor is restricted from rotating; done by setting the motor winding impedance (AC resistance) to a value giving a temperature rise in the windings below the temperature at which burning occurs."
@@virtualtools_3021 thanks...🤗
Just a question: where did you find such a monster !?!? It is very powerfull , much more than 4Kw!👍
You really love power elex
What! No schematic (covered by the cat of course :-) ). Great explanation. The smaller board seemed to generate 400V DC (If I'm not confused), which would be great for any ham radio constructor who builds valve/tube circuitry. It would easily power a valve/tube transmitter.
Dracula's knowledge and passion for electronics is unparalleled.
Don’t know why they have that fan running at no load, unless the application is a constant high load.
Well its not really likely to run at no load very often; server rooms don't really get turned off unless there are very serious issues!
I'd also expect the fan to regulate its speed according to the temperature, but the speed regulation is only used to slowly start it.
@@DiodeGoneWild I would guess it doesn't have any speed control and it only starts slowly due to its mass. I have a similar construction 120vac fan which takes over half a minute to get up to speed. In 2002 temperature controlled PSU fans weren't standard on desktop PC power supplies, let alone in a server room where noise is acceptable.
@@krnlg A place where I used to work found out the hard way that it's a Bad Idea to put the "door open" button next to the "emergency isolate" button. And no, it wasn't me.
That thing made of two metal plates is PTC fuse
maybe....but so far I have only seen the ones that look like a ceramic capacitor or MOV.
DiodeGoneWild I have seen this exact one at work on a power distribution board
The 56V is from a PABX more likely.
It looks similar like PSUs from Cisco Catalyst chassis or something like that.
Extremely awesome power supply :) 30 amp input... Wow!
Man, I hate when I accidentally drop molten copper on the floor.
"...3300uf 35 volts, well, 35 volts!!? It's 56 Volts!"😂😂
0:43 you fack
awesome
Interesting video. Thanx. :)
The power supply specialist 🤠😎
That's not a power supply; THAT is a power supply. Thanks for the great content!
4:38 sounds like emergency siren
Omg i need one of those😍
This would be a good power supply for a ZVS driver.
No screws left over? That's cheating!
I could use those huge inductors for an ultra joule thief. >:)
I dare you to short it out.
Ahhh, at 19:27 he goes on 'bout a control chip or a diode, a UC .38 .45 (one of the Thievery Corporation my favorites). What are the odds for that. Your videos bro, are full of Easter Egg surprises...
That's a big one, but I'm wondering how can I contact you as I have problems with mine stuff and I'm not sure who to ask for what replacement components I need or correct.
What is the model of this 56v power supply? Is there a part number, or do you know where it came from?