3 Phase Motor Startups, No soft startup, Compilation #3 Across The Line
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- čas přidán 18. 03. 2024
- You guys asked for it, Round 3! Various motor startups, including a 800 horsepower chiller on 4160 VOLTS.
3 phase motors pull a large amount of current on startups (6-10x the Full Load Current) which causes the windings of the motor to vibrate with each other and that vibration is the sound you hear while it starts up.
Most of these motors is on Air handlers with squirrel cage fans, or pumps and more!
Hope you enjoy round 3! More coming as I gather more! - Věda a technologie
Cant get enough of these!
Excuse me, there was a diesel engine startup in my three phase motor startup compilation. I'm offended now.
Lol! My last compilation I added a natural gas chiller and plenty of comments about that, not many sees them in action. So I added one
It's closer than the single-phase motor that snuck in there, and I don't hear you complaining about that one... :P
@@aprilkolwey4779 I was hoping no one spotted that one😉 you caught me lol
Kidding aside, Usually I wouldn’t include single phase motors, but in that case, the heavy load, sound and the very high current draw on startup made a good candidate to include in my compilation
@@NickSilcox3 It was a pretty good one, definitely close enough for me.
We have been blessed with a third one!!!
Thank you so much!
Very entertaining and fun to watch. Thanks for posting this.
A lot of these remind me of Thunderbolt blowers since they're also belt driven.
3:33 was the best!
We need more!
These videos are just too good!
Thank you sir! I continue to get more videos of motors starting up and when I have enough I’ll make another one
1:32 Over 200 Amps!
That current draw could have easily been more! Those current meters were pegged instantly lol
@@NickSilcox3 I think it'll be a good idea if they change those ammeters to avoid problems in the future ngl
@@downside7671 there is no problem with those amp meters. They’ll get changed out when the chiller is replaced or a VFD is installed. Large chillers like these do not shut off and turn on daily. Once they run, they’re running for days, weeks, or months before they shut off again. Most wear occurs on startup. So we do whatever we do to keep them running. When those meters get pegged from the inrush, it’s normal. Once the motor is up to speed, the current drops down to normal current rating. Which that 1100 ton chiller was about 65ish amps. @4160 volts (I was only there once for a service call)
@@NickSilcox3 a VFD would surely help have a better control of the inrush current and start up speed, but I've got a question aside from that, do those ammeters (example; the one in the video) stay there, despite the inrush current being way over 200, don't they get replaced? Is it something irrelevant, since the start up is only done in quite a long time from the last one? Hopefully my question was made clear and simple lol
@@downside7671 those are permanently mounted amp meters, part of the cabinet, this is an older Star-delta, and most starter cabinets come with them already built in from the factory. They’re about 20 years old and never once had an issue with any of them or had to replace any in our buildings.
We don’t measure the inrush current. If we did, there’s secondary methods to measure inrush. But We only care about the current draw when it’s running, unloaded, vs loaded, and monitor if the current goes up while demand stays the same of drops, make sure there’s no voltage/current imbalance, or hotspots within the windings of the motor.
My ship has a 2000 kw motor. I still have not seen it running.
I wonder if you'll do a perfect raised letter K5HLB horn. Replace the original 1L with a 2PC 1L, and put a narrow font 4 on it. It copies the Leslie RS5T horn. CN 3183 has that horn replacing a normal K5HL
3 phase motors?
@@NickSilcox3nope, just train horns.
more
pls!!
When part 4?
Whenever I have enough motor startups for a new compilation lol, I only have several new ones but a complete video is not long enough
Blowers belt drive 🔌