Incorrect schematic on AC Motor Control Worksheet

Discussion in 'Feedback and Suggestions' started by MTBE, Apr 16, 2010.

  1. MTBE

    Thread Starter New Member

    Apr 16, 2010
    1
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    In Worksheets for AC Motor Control Circuits, Question 19:

    The temperature switch is shown incorrectly. It should be a normally open switch. The connection of the switch on the circle to the right should not exist. The line should be above the circle on the right.

    This represents failsafe design. If the switch fails, you do not want the temperature element to stay heated.
     
  2. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
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    In that layout, yes.
     
  3. Wendy

    Moderator

    Mar 24, 2008
    20,766
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    Just a quick comment about the worksheets. As far as I know no one around here can to it. The original author shows up now and again, so if he sees this thread (or someone sends him a PM) it might happen.
     
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