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Search: Posts Made By: citfta
Forum: Renewable Energy Today, 12:32 AM
Replies: 112
Views: 21,123
Posted By citfta
Those are some nice videos if you want to make a...

Those are some nice videos if you want to make a generator for a windmill. But they have nothing to do with a magnet motor. :confused:
Forum: Renewable Energy Yesterday, 11:24 AM
Replies: 4,186
Views: 550,917
Posted By citfta
To invert the signal you use an NPN transistor. ...

To invert the signal you use an NPN transistor. Connect a 1 kohm resistor from your power to the collector of the NPN transistor. Connect the base to the 555 and the emitter to ground. Take the...
Forum: Renewable Energy 05-21-2015, 12:00 PM
Replies: 38
Views: 2,023
Posted By citfta
shylo, If you have any more information or...

shylo,

If you have any more information or pictures about the rotor you posted a picture of please post that information in my thread about open discussions so we don't cause confusion in this...
Forum: Renewable Energy 05-21-2015, 12:52 AM
Replies: 38
Views: 2,023
Posted By citfta
Hi guys, Been a very busy day so just now...

Hi guys,

Been a very busy day so just now got back to the computer. Shylo I like what you did with that rotor. Can you post a picture of the commutator end. I am trying to figure out the best...
Forum: Renewable Energy 05-20-2015, 12:35 PM
Replies: 234
Views: 16,946
Posted By citfta
@ grounded For all practical purposes there...

@ grounded

For all practical purposes there is no delay in the flow of electricity from one end of the coil to the other end. The wire is not like a pipe where you put water into one end and...
Forum: Renewable Energy 05-20-2015, 11:53 AM
Replies: 38
Views: 2,023
Posted By citfta
Hi guys, Shylo that is exactly what I had in...

Hi guys,

Shylo that is exactly what I had in mind. Now how did you connect the coils to the commutator? I was studying (daydreaming) about that idea last night and couldn't come up with a good...
Forum: Renewable Energy 05-19-2015, 01:16 PM
Replies: 38
Views: 2,023
Posted By citfta
Yes you are correct. Matt's design is for a...

Yes you are correct. Matt's design is for a motor with permanent magnet stator poles. I hadn't considered yet how that might affect the operation. A lot of things to think about. :thinking:
...
Forum: Renewable Energy 05-19-2015, 11:38 AM
Replies: 38
Views: 2,023
Posted By citfta
Hi mbrownn, Some pieces are beginning to...

Hi mbrownn,

Some pieces are beginning to make sense now. Something that surprised me was the amount of torque the modified motor of Matt's design had. His design is in the Free Basic Energy...
Forum: Renewable Energy 05-19-2015, 01:53 AM
Replies: 38
Views: 2,023
Posted By citfta
I have been studying the drawings and information...

I have been studying the drawings and information you have posted. I have a couple of questions if you don't mind. In the drawing right above this post are the two areas of red in the slots of the...
Forum: Renewable Energy 05-18-2015, 10:26 PM
Replies: 506
Views: 32,100
Posted By citfta
Hi artv, If I understood mbrownn what he was...

Hi artv,

If I understood mbrownn what he was calling a shoe is the center of the field winding. He can correct me if I misunderstood what he meant. Your generator has two field windings so it...
Forum: Renewable Energy 05-18-2015, 08:20 PM
Replies: 506
Views: 32,100
Posted By citfta
Wow Dave, Another good find. You can...

Wow Dave,

Another good find. You can clearly see in the second picture that there are screws through the case every 90 degrees so that would be for mounting four poles. Plus it looks like there...
Forum: Renewable Energy 05-18-2015, 07:51 PM
Replies: 506
Views: 32,100
Posted By citfta
Hey Dave, Thanks for the link. I wish they...

Hey Dave,

Thanks for the link. I wish they gave more information about them. They don't really say whether they are two pole or four pole. Some of them look to have four screws in the case like...
Forum: Renewable Energy 05-18-2015, 06:17 PM
Replies: 506
Views: 32,100
Posted By citfta
Hi again mbrownn, When I wrote about the...

Hi again mbrownn,

When I wrote about the higher current draw I was referring to a motor/generator built in the "traditional" way. We had several of them where I worked. They were used mostly to...
Forum: Renewable Energy 05-18-2015, 12:43 PM
Replies: 506
Views: 32,100
Posted By citfta
Hi artv, Yes you can drive one coil and take...

Hi artv,

Yes you can drive one coil and take power from another coil. And as you posted they will oppose each other. This is basically what mbrownn is working on. The problem is how to overcome...
Forum: Renewable Energy 05-18-2015, 11:18 AM
Replies: 506
Views: 32,100
Posted By citfta
Hi again padova, I am really sorry about...

Hi again padova,

I am really sorry about your reading disability. You apparently can't find where I wrote any rubbish about the asymmetrical motor. So you pretend you don't want to discuss it. ...
Forum: Renewable Energy 05-18-2015, 11:06 AM
Replies: 506
Views: 32,100
Posted By citfta
Thanks mbrownn for an excellent post. I am...

Thanks mbrownn for an excellent post. I am learning a few things from you. Please continue any time you want to add to this thread. No matter how much we know we can always learn more and I...
Forum: Renewable Energy 05-18-2015, 02:51 AM
Replies: 506
Views: 32,100
Posted By citfta
Hi artv, A coil be itself cannot produce...

Hi artv,

A coil be itself cannot produce BEMF. A coil moving through a magnetic field will have induced in the coil a voltage that is proportional to the strength of the magnetic field, the speed...
Forum: Renewable Energy 05-17-2015, 01:15 PM
Replies: 506
Views: 32,100
Posted By citfta
Hello padova, By your own admission you are...

Hello padova,

By your own admission you are new to this forum. And your small number of posts confirms this. So you really don't know anything about me or anyone else on this forum. I am on...
Forum: Renewable Energy 05-17-2015, 01:00 PM
Replies: 506
Views: 32,100
Posted By citfta
Hi artv, Well there probably isn't any easy...

Hi artv,

Well there probably isn't any easy way to measure the BEMF or calculate it. You could measure the current going to the armature and then if you knew the resistance you could figure the...
Forum: Renewable Energy 05-16-2015, 10:32 PM
Replies: 27
Views: 990
Posted By citfta
BroMikey, Where in the world do you come up...

BroMikey,

Where in the world do you come up with these off the wall definitions? Regenerative braking has absolutely nothing to do with a motor speeding up under load. Regenerative braking is a...
Forum: Renewable Energy 05-16-2015, 04:41 PM
Replies: 506
Views: 32,100
Posted By citfta
I didn't mean to imply I thought it would work...

I didn't mean to imply I thought it would work for a Lockridge device. I just thought it was an interesting find. It sounds like you have made some good progress on the Lockridge device. Good luck...
Forum: Renewable Energy 05-16-2015, 03:37 PM
Replies: 506
Views: 32,100
Posted By citfta
Hi mbrownn, Glad to have your contributions....

Hi mbrownn,

Glad to have your contributions. That is what this thread is about. So all ideas are welcome here. It is for sharing ideas and thoughts. Sometimes I type faster than I think and vice...
Forum: Renewable Energy 05-16-2015, 03:02 PM
Replies: 506
Views: 32,100
Posted By citfta
Hi Shylo, I did miss your post about the...

Hi Shylo,

I did miss your post about the generator. My post under that one was to mbrownn.

To answer your question about the armature current what you said would be correct if the armature is...
Forum: Renewable Energy 05-16-2015, 11:49 AM
Replies: 506
Views: 32,100
Posted By citfta
Hi Shylo, I am not sure I understand what...

Hi Shylo,

I am not sure I understand what you are asking, but yes if you reduce the voltage going to the armature then the amperage will drop and the motor will turn at a slower speed.

If your...
Forum: Renewable Energy 05-16-2015, 10:34 AM
Replies: 506
Views: 32,100
Posted By citfta
You have it exactly right. :thumbsup: And...

You have it exactly right. :thumbsup: And of course then the higher speed will generate enough BEMF to balance out the input current. And if you reduce the field current too much the motor...
Showing results 1 to 25 of 974

 

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