Youtube daily motor May 6 2017

Hi this is Barry.

Welcome back to the workshop.

In this video I'm going to answer some questions that came up from my treadmill variable speed

motor conversion video.

Specifically, they had to do with this component right here.

It looks like a transformer, but what is it, really?

And do I need it?

And can you even tell the difference?

So stay tuned, I have some answers for you.

Ok, so here is the setup that I had at the end of my conversion video.

I have the speed controller, with the coil in the circuit, the switch, and the motor.

And then I have my 10K potentiometer that I am using to adjust the speed.

Now the question is about this component here.

This is a coil, or an inductor.

It has two wires going through it.

If it was a transformer, it would have at least four...it would have more like two pairs.

Because it has only two wires, I know that it's an inductor or a "choke" or sometimes

called a "coil".

Those are all three names for the same thing.

In theory, it should smooth out the operation of the motor.

But let's run some tests and see if that's actually true.

So I'm going to do some experiments.

I'm going to have the motor go from stopped to a slow speed,

stopped to a medium speed, slow speed to a medium speed,

medium speed to a slow speed, and then I'll put a load on it by adding some

friction.

And what we will do is listen to all those scenarios and see if we can tell the difference.

So I'm going to go ahead and turn it on.

And then I'm going to use the potentiometer, and I'm going to rotate it slowly until the

motor just starts.

Let's see how that sounds.

I head a little surge, and then it settled right in at that slow speed.

I'm going to go to a medium speed and see how quickly it finds that medium speed.

It went from slow to medium and settled right in.

I'm going to let it spin down.

There's a lot of inertia in that flywheel.

Let it find that new speed.

And again, one little surge and it settled right in.

I'm going to do one more experiment where I go from stopped to a medium speed.

I'm going to put my hand on here to simulate a load.

OK.

In all those experiments, there was a little surge as it sought to reacquire that speed,

but it settled in on that new speed pretty quickly, with one little bit of effort.

Now I'm going to turn the power off and then I'm going to disconnect the inductor.

Fortunately, this has terminals here.

So this is out of the circuit.

I'm going to take the black wire from the motor and plug it directly into the speed

controller.

Turn the power on and we'll repeat those experiments.

Start by going to a slow speed...

I don't know if you heard that, but it had a harder start, then it backed off, then it

surged again.

It had a couple of oscillations.

Let's try it again to see if we can hear it...

So there are two or three oscillations before it settled on that slow speed.

I'm going to take it up to the medium speed.

And again, I can hear it pulsing and backing off...

I'm going to turn it back to a slower speed and let it find that new speed, as the fly

wheel spins down.

There are maybe two oscillations there before it went from the medium speed to the slow

speed.

I'm going to put it back on the medium speed and do a little load.

Let it settle down.

I hope you heard that.

I hear about two to three oscillations each time as it settles in on the new speed.

It's definitely not as smooth as it is WITH the inductor in the circuit.

So hopefully that answers the questions.

What is it?

It's not a transformer, but an inductor.

Does it do anything?

Can you tell the difference?

YES.

It smooths out the behavior of the motor.

Do you need it?

Well, maybe... maybe not.

It's up to you if you want that added benefit.

I'm going to leave it in place because I want my motor to turn and transition a little more

smoothly.

But I don't know any reason why you must run with it.

But you definitely can tell the difference.

So I hope you enjoyed this video.

I hope it helps answer some of those PRESSING QUESTIONS about variable speed treadmill motors

like, "What is that transformer-looking thing?"

And "Can I even tell what it does?"

And "Do I even need it?"

Well, it's an inductor or "choke" and you CAN tell the difference.

It smooths out the motor, And do you need it?

Well, that's up to you.

If you have any questions or comments, please put those in the section below.

And please subscribe to the channel if you haven't already done so.

I really appreciate it.

If you like the video, give it a "thumbs up".

If you don't like the video, give it a "thumbs down".

In any case, I appreciate you watching.

Take care!

I'll see you next time.

For more infomation >> What Does That Treadmill Motor Coil Do? - Duration: 6:23.

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DC Motor vs AC Motor - Difference between DC Motor and AC Motor - Duration: 1:36.

The main difference between AC motors and DC motors can be found in the name itself

for, DC motors run on direct current as opposed to alternating current on which AC motors

run.

In this video we will go to learn Difference between AC motor and DC motor.

If you like this video please subscribes Our channel Leaning Engineering.

While both A.C. and D.C. motors serve the same function of converting electrical energy

into mechanical energy, they are powered, constructed and controlled differently.

The most basic difference is the power source.

A.C. motors are powered from alternating current (A.C.) while D.C. motors are powered from

direct current (D.C.), such as batteries, D.C. power supplies or an AC-to-DC power converter.

D.C wound field motors are constructed with brushes and a commutator, which add to the

maintenance, limit the speed and usually reduce the life expectancy of brushed D.C. motors.

A.C. induction motors do not use brushes; they are very rugged and have long life expectancies.

The final basic difference is speed control.

The speed of a D.C. motor is controlled by varying the armature winding's current while

the speed of an A.C. motor is controlled by varying the frequency, which is commonly done

with an adjustable frequency drive control.

Thanks for watching this video.

Don't forget like share and comments.

More update please subscribes our channel learning engineering.

For more infomation >> DC Motor vs AC Motor - Difference between DC Motor and AC Motor - Duration: 1:36.

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For more infomation >> Motor Yağı İpuçları: Kaliteli Yağ Nedir - Duration: 2:16.

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Motul Katkı Maddeleri – Dizel Motor Temizleyici - Duration: 2:36.

For more infomation >> Motul Katkı Maddeleri – Dizel Motor Temizleyici - Duration: 2:36.

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Klasik Araçlar için Motul Motor Yağları - Duration: 1:59.

For more infomation >> Klasik Araçlar için Motul Motor Yağları - Duration: 1:59.

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Motor Yağı İpuçları: Yağ Standartları Nelerdir? - Duration: 2:39.

For more infomation >> Motor Yağı İpuçları: Yağ Standartları Nelerdir? - Duration: 2:39.

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Motul TRD Spor Motor Yağı - Duration: 3:29.

For more infomation >> Motul TRD Spor Motor Yağı - Duration: 3:29.

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Case 450 Final Drive Motor - Duration: 0:47.

Hello and thank you for viewing, my name is Travis.

I'm with Woodland Fluid Power and texasfinaldrive.com.

Here today, I'm going to talk about a Case 450 2-speed Rexroth MCR 5 A series motor.

This is a new product we are starting to get.

The skid steer drive motors, from our CTL's that we currently specialize in.

This particular unit has already been through our 10 step remand process and is on the shelf

waiting for departure.

If you have any inquiries, please give us a call.

We look forward to assisting you in any A series motor.

Thank you.