Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Dc generator

  1. Jul 29, 2010 #1
    I have created blueprint for a DC generator.THEORITICALLY it is 100% power efficient,it involves no AC in PRODUCTION,i need to know whether AC devices we work daily cope up with dc power or not?
    Last edited: Jul 30, 2010
  2. jcsd
  3. Jul 29, 2010 #2
    100% efficiency? Practically? That sounds too good to be true.
    Nevertheless, AC devices will definitely not work with DC current, the whole point of being designed for AC is lost. Most devices use AC either to be more efficient, or simply because their function demands so. It is highly unlikely that they would function the same on DC.
    At least thats what I think. I could be wrong, of course.
  4. Jul 29, 2010 #3


    User Avatar
    Science Advisor

    Ok, I'll bite. How exactly do you measure the efficiency of a "blueprint"?
  5. Jul 29, 2010 #4
    1: there is nothing practically 100% power efficient. BTW what is principle of operation?
    2: devices that would work on DC
    *universal motors used in mixer grinders, drilling machines, etc(series motors with brushes)
    *filament lamps
    3. devices that would not work on DC:
    *induction motors
  6. Jul 29, 2010 #5
    You cloud use an inverter to transform dc voltage/current to ac.
  7. Jul 30, 2010 #6
    extremely sorry ,it is THEORITICALLY 100% efficient,
    ih,ve said it as PRACTICALLY,the principle i used is MOTIONAL EMF
  8. Jul 30, 2010 #7
    it is theoritically 100% efficient not practically,there may be some power loss due to friction,etc
  9. Jul 30, 2010 #8
    I seriously doubt that you would have the knowledge to build a very efficient dc motor without knowing the difference between AC and DC devices.
  10. Jul 31, 2010 #9


    User Avatar
    Science Advisor
    Gold Member
    2017 Award

    What is "Motional EMF", please?
  11. Aug 2, 2010 #10
    PRACTICALLY in telecommunication field, DC-Generator can reduce fuel consumption till 70%, reduce maintenance from monthly maintenance to become every six month.
    No need rectifier
    No need transfer switch
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook