1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Unit Conversion, kRPM/V

  1. Jul 3, 2011 #1
    For a motor modeling project im trying to find a value that is measured in Volts/kRPM (Voltage constant) , in the motor specs that I am given i have a value in RPM/Kv,

    If the value for RPM/Kv given is 245, how can i find Volts/KRPM, or is that even possible

    Thanks!
     
    Last edited: Jul 3, 2011
  2. jcsd
  3. Jul 3, 2011 #2

    rock.freak667

    User Avatar
    Homework Helper

    I assume K means 103

    so 245 rpm/kV = 0.245 rpm/V


    So now dividing by 1000, 0.245(10-3)krpm/V.

    Just invert now to get the units of V/krpm.
     
  4. Jul 3, 2011 #3
    So, it would be 1/0.245(10^-3)?

    That comes to 408, which is a ridiculously high voltage constant, or at least from what ive seen anyway
     
  5. Jul 3, 2011 #4

    cjl

    User Avatar

    My guess is that your second value is in kRPM/V, not RPM/kV. Very few motors run on thousands of volts, so RPM/kV wouldn't make sense as a unit.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Unit Conversion, kRPM/V
  1. Conversion- MeV to V? (Replies: 12)

  2. Unit conversion (Replies: 8)

  3. Force Unit Conversions (Replies: 1)

Loading...