Viking AC Motor driving to 200 Hz (6000 rpm) with Vacon VFD

[Thrustmaster64]

Sitä ollaan suomesta.

[Arabhacks]

I have discovered that around 200Hz is about the upper limit.

We have 400Hz power available as well as 50Hz.

On 400Hz, AC/DC motors act normal but AC only motors only go to about 2 times their speed, if at all, with very low power output.

So I too tried a variable speed drive.

Some clocks and the like will run very fast on 400Hz.

Of course anything electronic that takes a reference from the AC power, like a clock, will follow this higher frequency, where minutes are displayed in seconds.

Enjoy.

[Amishman35]

Make it play When The Saints Go Marching In like they did with a Formula 1 car.

[67tr876]

I got my motor up to 120HZ but thats all I want to go up to cuz it started making some not good sounds but its fine. I did a hard start on 120HZ it was funny as hell.

[advthinker]

There are many quads and carts on you tube that use this trick! i bought a altivar and a two hp inverter duty motor, from web auction site, a inverter form harbor freight, and i run the motor from a 12v battery. i have a citicar diferential, and will soon bolt the motor to it, once i get the input gear back from the edm machine shop. the whole point of this is to lose a great weight. and compare the dc/ac config, for time/speed, and duration. a/c motor is lighter, and smaller wires are needed.

[advthinker]

once you show one of these ran off a 12 volt inverter to supply the 220 volts needed by the vfd we should see more homemade electric go karts and other such things! VFD,S are the greatest inventions and are cheap to buy used. same with the three phase motors, dirt cheap! I have one that i soon will install on a citi car rear end just to see what it will do.

[Kyosuke1989]

@advthinker Could work nicely on that application, but be aware that earthings etc. connections must be done safely, you don't want 220 volts run trough you :P (Hmm, you could make a series hybrid if some fuel-efficent 12V/230V genset could be connected to that battery..)

[Riskteven]

In one end: Trombone-Microphone and amplifier. In the other end: IGBT based power amp and transformer and then the motor. Would be fun to see!!!

[mfx1]

If you're going to overspeed a motor it's probably not a good idea to have a plastic fan (which looks like it's damaged?) attached to it, fan could disintegrate!

[hameeds01]

nice job man impressive

[ashtweth]

search panacea university roto verter you can use this to make it more efficient. Thanks to Hector and EVGRAY

[tsport100]

AC motors generally hit a reluctance wall where increasing the frequency will further will reduce rpm. A work around is field weakening.

[alexhausauer]

Нужно было ещё заснять реверс двигателя за 0.1 секунду, при достижении максимальной скорости. Интересно преобразователь отработал бы это задание?

[Karjis]

When I played with old omron vfd and sew engine with quite dead bearings, it made quite awful noise when driven over 100Hz. But still it's fun to play with those things :)

[AgentCROCODILE]

I would imagine that there is a limit to the maximum frequency - not necessarily that the bearings would require replacement - but because the impedance would be so high that there would not be sufficient current flow.

[Kyosuke1989]

Yes there is... 240 Hz was on this case, as i remember. Speed was not increasing anymore.

[AgentCROCODILE]

Did you manage to measure the current draw? It should have decreased too.

[Kyosuke1989]

Current was possible to be displayed on VFD's screen, i didn't look that.

[UrbexNW]

Even though it's called VFD, it's often VVVF or variable voltage variable frequency. The voltage is raised proportionally with frequency to counter the impedance. So the limitation is in insulation break-down voltage and iron loss.

[AgentCROCODILE]

Although eventually it would probably go to saturation given a high enough frequency anyway wouldn't it?

[DanFrederiksen]

how do you figure? too much inductance in the coils for the voltage to reverse the current in time to keep up?

[guimbadriver]

this frequency conveter remember the same circuit that my RCA TR70C quadruplex video tape recorder uses to drive the capstan motor

[10Aniversary]

I have a Siemens Micromaster inverter wired to my Drill Press Motor. I can go also up to 200 Hz but over 62 Hz the Motor looses most of its torque. For 200 HZ and more You cant use simple Asynchron - Motors. There are special purpose Motors with magnets and more coils like AMK for higher frequencies

[EETechs]

Or you could just use a DC motor that has a controller with IR compensation which holds motor speed constant regardless of load (to a practical limit of course)...

[Trusten1984]

How many watt/HP are the engine on circa. 2500 Watt `?

[Kyosuke1989]

550 watts, 0,75 Hp. You should have read the text.

[Bandicoot803]

Sounds like a jet engine growling to full blast.

VFD rocks!!!

[Maximo1887]

very nice vid 5*

[felibr]

Where can i buy it? thanks for your time, felipe.

[Huddo2006]

You know you can go up to 7200 HZ with minor software change?

Its Vacon not Wacon......

How did you get my email address?

[Kyosuke1989]

320 Hz is the maximum operating frequency attainabe by adjusting it from panel.

Indeed.

What? O_o I don't know your email adress..

[UNOMINER]

Hi gr8 little vid thanks.

Wounder if you could help me I have a speed controller that will run off 3phase in and out and single phase in and 3phase out and a 240v 415v motor. I have tried searchin the web how to wire it up but the plans are way above my knowledge. Any help from a vid or pm from anyone would be greatly appreciated. Thanks

[Kyosuke1989]

Umm, it would be best if you would consult qualified electrician to help your work. I may know how it's wired, but i cannot take any risks, when i'm not seeing it "live". If you do not know how to wire, DO NOT WIRE! There is an danger of elecric shock always, if you mess it up, and in the worst case, it will be your last wiring.

[UNOMINER]

Yes I know what you are saying and I always earth the unit out after use and also leave it for several minutes as per the important notice on the speed controller. Just been in to take some pictures of it and am goin to see if I can find more info on the net. The controller is an Altivar 16 much to much of a controller for what I need. But you have to use what you find on a shoe string lol. Many Thanks anyway

[ShelvokeSPV]

I'd also add that you should seek expert advice before trying to connect a three phase motor to any drive. Three phase motors can be wired in star or delta configuration depending on the line voltage or starting torque required. If the motor is running off a 240V inverter on a single phase supply, it will be wired in delta. If its connected to three phase 440V, it will need to be wired in star or it will be cooked. In star there are two field coils between any two phases, but only one in delta.