Dual 125HP Motor Start

[@PocketOperatorGuy]

That's a beautiful sound.

[@tjpprojects7192]

This'll make a nice ringtone or alarm.

[@Bandicoot803]

The waving neon-lime paper tag on the right motor's eyelet screw indicates that it has been recently overhauled. I see you grabbed the opportunity to capture and share the moment of recommissioning of the motor's new lease on life. Very nice.

[@jasonstclair6293]

Or it's just an internal stock tag they put on it when it was delivered

[@Dudleymiddleton]

You would never get this on mainstream TV that all the lemmings watch. This is what youtube is all about!! Thank you for sharing. Merry Christmas and Happy new year!

[@ChromeConnoisseur08]

It starting up sounds awesome like imagine that sound coming from some futuristic hypercar that can reach speeds of like 400 mph or something outrageous like that

[@prestonburton8504]

VFD - i hear the harmonics! LOVE IT! thank you for posting!

[@Bandicoot803]

Objection: That's not VFD behind this, it's a soft starter chopping phases. You can hear the 60Hz grid carrier frequency humming at the initial run. The high pitch are the magnetic field interaction with the squirrel cages and partitioned pole pairs.

[@prestonburton8504]

@@Bandicoot803 SCR - ok. you are right about initial 60hz, not lower frequency ramping up.

[@grovecitysirens_GCS]

What is this driving

[@julien801]

​@@grovecitysirens_GCS dust collector for an asphalt plan

[@Tornadolucas]

my computer's fan

[@TheBoringCreatr]

@@Tornadolucas BAHA

[@otteszchannel2012]

my pc fan

[@chrisbrasher6177]

Jeeezus

[@isitapal4490]

Sound like Indian local train 😅😅

[@alfrom81]

I sounds the 60hz hum😮😮😮😮😮😮😮😮

[@julien801]

@@alfrom81 yes 60hz here Canada, québec

[@Boraxo]

How did they do this in the older days before VFDs ?

[@dirtbikenrcman]

Star Delta Starter

[@Shaker626]

Thyristor soft starters

[@archietiberius5005]

Heater coils, Time-Delay fuses, Time-Delay overloads, multi-stage motor windings, centrifugal switches... The list does go on. While I love that we can fit an entire cabinet inside the space of a microwave now, it's a lot less personal when you just have to hot-swap a drive and off she goes.

[@tristan6509]

You can run the motor in series with a lightbulb for soft starting, it limits the inrush current and you'll see the lightbulb glow before slowly dimming.

[@prestonburton8504]

@@dirtbikenrcman we call it 'delta/wye' reduced voltage motor starter in our industry (America) - huge clanging contactors - very abrupt and very hard on themselves as well as motor and leadouts! I have an early 20s model with a clock delay timer that you wind up once a week -that can do about 30 starts before having to be hand wound, just like a clock!

[@jacksherwood4886]

My phone screen dimmed when the motors started

[@bsmith8564]

All i know is ABC and BAC or CBA or ACB assuming three phase.

[@thunderfox53]

I really wished ev cars sounded like this instead

[@nic2000py]

Sound like controll with esc

[@UmbreWolf]

its called a VFD

[@dennisdelacruz8881]

Pov:my phone starting

[@julien801]

@@dennisdelacruz8881 wish my phone could make this sound 😉

[@kevinnielsen1356]

At 480v thats almost 200 amps per motor. Thats a heap of current.

[@julien801]

@@kevinnielsen1356 600v here

[@paul5683]

Those solar panels up on the roof are going to have work really hard. I'm all for clean energy but stuff like this that suck up so much juice. A few other industries that use huge amounts of electricity like steel mills other metals refining facilities. We complain about China being such a big polluter because they continue to run the coal generators to run the dirty steel mills because we have all decided that we do not want that dirty business next to our homes.

[@julien801]

@paul5683 here in quebec we have hydro power plan, like water spinning turbine

[@kevinnielsen1356]

@paul5683 You forgot to include crypto miners is huge electricity usage

[@yachtcaptain7320]

God ... I wish there is a belt-guard somewhere to be installed.

[@julien801]

@@yachtcaptain7320 yup minute after test

[@yachtcaptain7320]

@@julien801 Good !! (I'm kinda obsessed by safety !)

[@Ferd414]

Guards are an an intelligence test "cheat sheet" for those who shouldn't be part of the gene-pool. Leave 'em off and let 'em sort themselves out to make room for someone worth having around.

[@Foxxnioxx]

Nice

[@over9000andback]

wow they're huge for only 100HP

[@happycube689]

Sounds like the screams of the damned

[@petersaunders747]

Where are the guards. Get caught in this and you would certainly know about it!

[@julien801]

Guard was removed for strap install and test rotation