Traction-Talk  

Go Back   Traction-Talk > Advertisements > Wanted Adverts
Register Donate Events Calendar Picture Albums Mark Forums Read

Wanted Adverts Steam items and equipment Wanted.

Reply
 
Thread Tools Display Modes
  #31  Post / In Thread 
Old 19th August 2017, 08:43 PM
steamy1 steamy1 is offline
Engineer
 
Full Name: Mr Steamy One.
Join Date: Nov 2007
Location: Surrey
Posts: 2,553
Thanked 2,966 Times in 1,001 Posts
Default

Quote:
Originally Posted by weidner View Post
No , there will be no overvoltage

Have you got that down ?

Now , for your homework ............. . .
If there was no overvoltage the regulator contacts would never operate, they reduce the voltage to a preset threshold.
Reply With Quote
  #32  Post / In Thread 
Old 19th August 2017, 10:56 PM
weidner weidner is offline
Engineer
 
Full Name: Bob Allison
Join Date: Nov 2007
Location: West Northamptonshire
Posts: 13,797
Thanked 7,095 Times in 4,077 Posts
Default

Now we are arguing over semantics . The regulator will work when the voltage reaches a set limit . whether you want to call this an overvoltage is up to you . Qn a 12v setup the CVC is set at about 14 and a bit volts , so as to charge the 12v battery .

My safety valves lift at a set pressure in the same way , but I don't call it an overpressure , unless they are set wrong .
Reply With Quote
  #33  Post / In Thread 
Old 22nd August 2017, 07:22 AM
Gaudin98 Gaudin98 is offline
Engineer
 
Full Name: Dale Riley
Join Date: Aug 2009
Location: Lancashire
Posts: 591
Thanked 447 Times in 201 Posts
Default

Looks like an awful lot of trouble to reinvent the wheel. Just a variable wire wound resistance is all that is needed in the field and keep your eye on what's going on.
Reply With Quote
  #34  Post / In Thread 
Old 22nd August 2017, 08:51 AM
weidner weidner is offline
Engineer
 
Full Name: Bob Allison
Join Date: Nov 2007
Location: West Northamptonshire
Posts: 13,797
Thanked 7,095 Times in 4,077 Posts
Default

Except that Uncle Joe Lucas , Prince of Darkness , made millions of the things , and modern , smaller solid state equivalents are also available . So perhaps not so much reinventing the wheel , as using one off the shelf .
Reply With Quote
  #35  Post / In Thread 
Old 22nd August 2017, 11:02 AM
steamy1 steamy1 is offline
Engineer
 
Full Name: Mr Steamy One.
Join Date: Nov 2007
Location: Surrey
Posts: 2,553
Thanked 2,966 Times in 1,001 Posts
Default

I think I would start with the basic unregulated circuit first to see what is attainable.

I would connect terminals F and D together so full potential should be available between terminals F/D and the body of the dynamo. (see circuit post 18)

I think using a variable wire wound resistance might be much the same as controlling the engine speed manually.

I would also check out bulb availability and investigate the dynamo’s output at 6 Volts.
Reply With Quote
  #36  Post / In Thread 
Old 25th August 2017, 10:08 PM
tom-madbiker's Avatar
tom-madbiker tom-madbiker is offline
Engineer
 
Full Name: Thomas Barlow
Join Date: Sep 2009
Location: Chesham, Buckinghamshire
Posts: 1,045
Thanked 363 Times in 235 Posts
Default

use a bike reg from john goff cant remember his website small solid state and reliable he does ones for dynamos and alternators inc dynamos with no battery
__________________
BODGE = Bit Of Damn Good Engineering

www.heritagemachining.co.uk
Reply With Quote
Reply

Thread Tools
Display Modes

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

Forum Jump


Traction Talk is Supported By:
Sutton Castings

All times are GMT. The time now is 05:10 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.