Testing the MeanWell LRS-600, can they handle 100% load?
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- Опубликовано: 31 июл 2024
- MeanWell has recently recently released their new power supplies in the LRS lineup. In this video we're going to fully load the 5v (LRS-600-5) and 12v (LRS-600-12) versions for at least 30 minutes to see if they can actually handle their rated loads! During some extra testing it actually gets quite interesting for a little bit!
#PowerSupply #test #review
Jump links:
0:00 - Video Introduction and unboxing
1:05 - MeanWell LRS-600-5
2:25 - MeanWell LRS-600-12
3:00 - Discussing the specifications
3:55 - Size comparison with MeanWell LRS-350
5:25 - Overview of load testing bank (DL24)
7:05 - Wiring up AC wiring (European 230v)
8:45 - Hooking up the DC side
13:42 - First 50Amp test on LRS-600-5
15:54 - Going up to 100Amps!
19:00 - 30 minute hyperlapse of 100Amps test!
20:02 - FLIR shot of LRS-600-5 test
21:45 - First conclusions on LRS-600-5
22:45 - Hooking up LRS-600-12
24:00 - First start of LRS-600-12
24:35 - Loading the LRS-600-12 with 50Amps of load
26:25 - 30 minute hyperlapse of 50Amps test!
27:20 - FLIR shot of LRS-600-12 test
28:03 - Fan turning off takes a while?
29:07 - Comparing LRS-600 to other power supplies
29:50 - UHP-500-5 vs LRS-600-5
31:00 - Conclusions of load tests on both LRS-600 models
31:42 - Should we try dead-shorting them?
33:05 - HRP-600-5 vs LRS-600-5
34:55 - Dead short setup of LRS-600-12
36:12 - Dead short test of LRS-600-12
39:25 - Dead short setup of LRS-600-5
40:29 - Dead short test of LRS-600-5
41:10 - So euh, both died?
42:35 - Video end conclusion?
44:42 - The real conclusion
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If you still have any questions, let me know in the comments or join the Intermittent Technology Discord server here: / discord
░▒▓[Shopping links]▓▒░
❕ All below links can be affiliate links which provide me with a small kickback in case you purchase something. If you use them, thank you very much! :D
✨ MeanWell LRS-600-5: geni.us/DeIBzPR
✨ MeanWell LRS-600-12: geni.us/ACAzK
✨ MeanWell UHP-500-5: geni.us/I3NK
✨ DL24 Electronic 150w load tester: quinled.info/2018/10/01/tools...
✨ Tools and Equipment used page: quinled.info/2018/10/01/tools...
░▒▓[Associated blog post & Mentioned in the video]▓▒░
📺 + 📚 Digitally Addressable Articles and Videos: quinled.info/addressable-digi...
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Amazing video Quin! As always thanks so much for your knowledge, you're a legend!
I had faith it would boot up again after unplugging for some time, these MeanWell drivers are WellMean! Thanks Quindor!
I would like to have a plastic cover on top of the terminals for touch protection, for some reason it's not included. The MeanWell's are quality power supplies. The SP-series are used in machines(running 8-16 hours continuously) which our company sells, I've seen only one or two fail in 10 years or so.
Nice video. Just picked up a RSP-750-5 for a 40 year old computer I'm trying to get working again, and this (and three other Mean Wells) seem to work. They came highly recommended by others in our retro club, but I was curious what others think as well.
37:28 "It`s dead jim" - followed by - 40:53 "but it`s dead" Awesome, and some magic smoke
The 4 min limit after a short on the output might be there as a safety measure for fire? If there was a short on the output and it kept resetting, it will be outputting a big spike of energy into that short. Depending on the reset frequency that could be a problem. Nice review though and kudos for trying to find the limit.
Thanks Quindor for doing this video! And risking your own power supplies. Glad everything turned out okay. That’s why I buy from your links - everything is tried and tested:) I plan to get the LRS-600-12. What power cord do you recommend using? 600w rated? And what gauge cable do you recommend from the power supply to the quinLED-dig-quad?
Power card on the AC side doesn't need to be anything special really. It only carries a few Amps max. On the DC side, especially for the 100Amps you need every bit of copper in that wire you can get otherwise you'll see more losses, heat, etc.. So for the Dig-Quad I'd recommend at lesdt 2x 16AWG, maybe even 12AWG, but it all depends on the expected load. Check out my video about "40Amps vs cable" that should show you why. :)
The voltage on the AC side is much much higher so it requires a lot less Amps and thus the cord can be thinner. I mostly just a PC power supply cable, those are generally rated for 6Amps to 8Amps which is like 1800w or so with 230v. :)
I'm having trouble with 2 different power supplies like that one in the video, a 10Amp and a 30 amp. They each can't seem to keep both a Windshield wiper motor pulling less that 1.75 amps running and a very small 12 volt emergency lighting battery (5" x 5" x 4") charged at the same time. The Pwr Sups at each in parallel with there respective batteries.
Definitely Fridaydor 👌
congratulations for the video!
great you didn't burn them Mean well
I am looking for this model for load tests on my lifepo batteries in 280AH (3.65 volt)
I think 100A would be a little too much to charge my individual batteries
too bad we can't adjust the current to go from 100 to 50 or less
unless there is a module to lower the current?
do you have discord to discuss this?
THANKS
laurent
thank you so much for the testing and take the risk to burn it, btw I was waiting for the most important part how much the power efficiency or the powerloss
These PSUs haven't really been designed for efficiency, something from the UHP line-up would be much better for that having an Active PFC and being passively cooled.
But I'll try and take it into account for future tests.
@@IntermitTech what PFC
Look it up, you asked about efficiency that's a bit deal for that.
I was able to buy 4 SP-300-5 power supplies for a nice price, can you tell me what the difference is between the RSP and the SP? I can't find it on the internet.
Would have liked to see the actual signal on a scope. So now I go looking.
Worth mentioning, I got some 12 and 24v LRS150's and they have pretty bad coil whine at low/no load. It's better when they're covered up but not ideal
Same experience. I'm ditching the LRS series in favor of LPV. At least LPV-60-24 was dead silent on every setting I tried.
what component inside that power supply is needing to 'reset' do you think?
it's most likely a PTC resettable fuse, basically a thermistor which raises its resistance as it heats up, which is basically a positive feedback loop which cuts off almost all the current. It has to cool down for a while to reset
I usually test into resistors made from a spiral coil of steel fencing wire coiled onto a wooden cross-shaped frame.
Only a few euros (plus cost of the wood of course) and if you need a higher resiatance use a thinner wire. Need more power handling? Blow a fan on it.
I think the wood would burn with this much power
Do you believe that this 12v source will remain stable at 13.8, up to the specified current?
I have not tested it at those voltages in that regard it might be better lowering a higher voltage version then raising a lower voltage supply.
I wired the positive, negative and ground and plugged it in but the meanwells green light isn't turning on I checked the positive and negative and it's getting 120v but it's not outputting 12v what's wrong?
You mean the Live, Neutral and Ground on the AC side I hope? Maybe look a bit more into that.
Make sure that the AC input range switch is set to 120V.
For car amplifiers, are these suitable for 15V?
If you buy the 15v version I'd imagine so yes.
heaters!
I want to know the over current characteristics more
Need to vary the load past 100 % rating to where it shuts down, burns down or whatever it does!
Consider a high capacitance load with high inrush
Try it with a super cap load, say 15 farads or so across the output with say 80% resistive load.
This is a problem for a lot of meanwell supplies for me.
How do you power it up without triggering over-current shut down?
Thank you!.
Sure, in tiger applications the LEDs I get initial draw could be an issue. This one should shut down pretty quickly with a too high draw on it, few seconds tops.
But there is a LRS-600N2 I believe, that's rated for 200% output for 5 seconds I believe to help with starting motors and such.
Other then that I try to teared them for what I and my users would use them for and that's LEDs in this case. :)
Ok - thanks - looks like a better choice.
@@IntermitTech
What are the benefits of using this type of power supply over a potted low voltagevtransformer?
What do you mean with "Potted low voltage transformers"?
@@IntermitTech just a regular low voltage transformer, the type you would use for landscape lights. Except I use the 12v DC ones vs most landscape transformers are 12v ac.
The potting is simply that they encase the coil in what I believe is epoxy.
But isn't that also a DC power supply just like this is? I'm just confused what you mean. There are Ip67 rated power supplies too but those are different types and have their own up and down sides?
@@IntermitTech Yes, just wondering if one is more efficient than the other?
@@thebigdoghimself Iron core transformers can be used in a similar way to the LRS power supplies, as long as there's a rectifier and smoothing capacitors to provide a smooth DC voltage, but it will be a bit less efficient. Though with a smoothing capacitor, it kinda ruins the power factor, although the LRS series does the same. The more expensive meanwell RSP supplies have an active PFC.
tldr, these power supplies are a bit more efficient, and I suppose they are probably more compact than an iron core transformer of equivalent power.
FYI I'm not sure if yr aware but yr dont have any affiliate links on yr site for led power supplies. You do for bench testing but not for the lights.
I know the articles are sometimes hard to find: quinled.info/power-supplies-digital-leds/
👌👌👌👌👍👍👍👍🌹🌹🌹
The lesson is "RTFM".
I guess you're running on solar panels because heating your room with electricity from the grid is quite expensive these days 😁
this is a lame test, load it just for very short time.
What do you think is an appropriate time then? Also for LEDs load would hardly be constant max.
@@IntermitTech one hour of full load would be appropriate but I already purchased one so I’ll test it properly. Thanks
Hah, well let us know. I'm willing to bet if I see no changes in ouput or thermal runaway that 30 minutes or 60 minutes will make no difference at all. If the data would have suggested otherwise, I would have tested longer. :)
7.5A at 230V input and they rate it as 90% efficiency how is this possible when they draw 1725W to produce 600W?? what am i missing?