Energetic Forum  
Facebook Twitter Google+ Pinterest LinkedIn Delicious Digg Reddit WordPress StumbleUpon Tumblr Translate Addthis Aaron Murakami YouTube 2018 ENERGY CONFERENCE - ALL SEATS SOLD OUT!

2018 Energy Science & Technology Conference
Sponsored by Teslacoin Foundation

Teslacoin Foundation

https://www.tesla-coin.com/inventorshome/


Go Back   Energetic Forum > >
   

Renewable Energy Discussion on various alternative energy, renewable energy, & free energy technologies. Also any discussion about the environment, global warming, and other related topics are welcome here.

* NEW * BEDINI RPX BOOK & DVD SET: BEDINI RPX

Reply
 
Thread Tools
  #1651  
Old 11-03-2015, 11:19 PM
Listener192 Listener192 is offline
Member
 
Join Date: Oct 2009
Posts: 75
The attached DC motor tutorial is a little more complete than those found in many text books. Extract follows...


The I2R term represents heat dissipated in the armature, but the very important term EoI is the electrical power that is converted into mechanical power. The mechanical power of the motor is therefore exactly equal to the product of the cemf multiplied by the armature current

P = EoI (5.5)


where

P = mechanical power developed by the motor [W]
Eo = induced voltage in the armature (cemf) [V]
/ = total current supplied to the armature [A]

So if you reduce CEMF, then your mechanical power output, at full speed will decrease.
Attached Files
File Type: pdf NI-Tutorial-14922-en.pdf (134.5 KB, 68 views)
__________________
 
Reply With Quote

Download SOLAR SECRETS by Peter Lindemann
Free - Get it now: Solar Secrets

  #1652  
Old 03-23-2017, 10:26 AM
Robert49's Avatar
Robert49 Robert49 is offline
Member
 
Join Date: Feb 2012
Posts: 94
Jim Murray's Torroid motor

Hi friends,
I'm currently working on this torroid motor. Three years ago, I made a very crude torroid motor just to see if the idea made any sense and it worked.
The electronic controller I made was not efficient and could not operate at high speeds.
The controller for this new motor will use shift registers and position sensors, and a pulse generator. No details yet as it's all in my head for now.
I have most of the parts done on the motor and my friend will machine the rest as soon as he has time.

Be back for more.
Robert
Attached Images
File Type: jpg MotorAssem1.JPG (174.3 KB, 46 views)
__________________
 
Reply With Quote
  #1653  
Old 03-23-2017, 05:31 PM
wrtner wrtner is offline
Silver Member
 
Join Date: Oct 2008
Posts: 926
Quote:
Originally Posted by Robert49 View Post
Hi Mbrown.

I decided to ignore the collapsing spikes and am no longer collecting the generator function.
I ran the motor at 140volts and it went to 3362 rpm with only 0.18 amp
or 25.2 watts. It does have a lot of torque.(not measured, just felt)
Look at the position of the driving pulse.
Here are some scope shots.

Robert
If you check out these people here:
https://www.physics.wisc.edu/instruc...fourier-java5/

it looks as if your curve is approximately a fundamental sine wave with the addition of the third harmonic.

Whether this gets you anywhere is, of course, quite a different matter.
__________________
 
Reply With Quote
  #1654  
Old 03-26-2017, 02:18 PM
mbrownn mbrownn is offline
Gold Member
 
Join Date: Jan 2011
Posts: 1,638
Quote:
Originally Posted by wrtner View Post
If you check out these people here:
https://www.physics.wisc.edu/instruc...fourier-java5/

it looks as if your curve is approximately a fundamental sine wave with the addition of the third harmonic.

Whether this gets you anywhere is, of course, quite a different matter.
I think your right. however I dont think that was the case with Bedini's generator.

Maybe looking for a harmonic may be a way of using resonance when you cant reach the resonant frequency of a coil.
__________________
 
Reply With Quote
  #1655  
Old 08-28-2018, 03:33 PM
Donald Haas Donald Haas is offline
Senior Member
 
Join Date: Apr 2007
Posts: 159
Best silicon steel

Hi All,
In the past I tried out the concept starting with a series wound winch motor.

Now I want to order some laser cut laminations and I need advice regarding best type of silicon steel for the "X" rotor version of the motor.

There is a local laser service co. but would probably have to order the steel.
Also thickness is another question.

I suspect that this thread will pick up business again with PL's latest demo of
Benitez tech.

Thanks for your help,
bro d
__________________
 
Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



Please consider supporting Energetic Forum with a voluntary monthly subscription.

For One-Time Donations, use admin@ this domain > energeticforum.com

Choose your voluntary subscription

All times are GMT. The time now is 05:25 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimisation provided by DragonByte SEO v1.4.0 (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Shoutbox provided by vBShout v6.2.8 (Lite) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
2007-2015 Copyright - Energetic Forum - All Rights Reserved

Bedini RPX Sideband Generator

Tesla Chargers