synchronous motor

Discussion in 'General Electronics Chat' started by olla, May 25, 2010.

  1. olla

    Thread Starter New Member

    Apr 25, 2010
    i have a sync. motor 8/10 RPM to check the current i conn. muy digital multimeter ACA range in series., but i didn't get nothing. i conn. it directly to AC and it works, i used differnt ranges, still nothing.
    i noticed motor's shaft doesn't turn when i conn. it to measure I why ?
    My meter is very old. Do u think ACA is not working ? or out of cal. ?
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    It may be that your meter's fuse is blown. Most have an internal fuse to protect them from excessive current, like when being used to measure voltage while set on a current scale.
  3. mik3

    Senior Member

    Feb 4, 2008
    Did you connect the red probe into the amperes plug?

    I think you left it in the Volts/Ohms plug.