What will be the shape of torque-speed curve in braking quadrant for DC motor?

mibawad

mibawad

@mibawad-hjwXTs Oct 26, 2024
Hello,
What will be the shape of torque-speed curve in braking quadrant for DC motor? Will it be similar to this curve?
Many thanksUntitled

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  • narayana murthy

    narayana murthy

    @narayana-z4W16q Oct 4, 2011

    no its just a drooping curve
  • mibawad

    mibawad

    @mibawad-hjwXTs Oct 4, 2011

    Hello,
    What do you mean by drooping curve? Could you explain more?
    Best wishes,
    Mohammed
  • narayana murthy

    narayana murthy

    @narayana-z4W16q Oct 5, 2011

    its difficult to explain i think i can find a image of it
    image009
    here it is but the curve dont bend completely changes on end refer books for more information
  • mibawad

    mibawad

    @mibawad-hjwXTs Oct 5, 2011

    All textbooks refer to the speed-torque curve for permanent magnet DC motor as a line in first quadrant as in the figure
    torque
    I am asking about what about the curve in Q.2, Q.3, and Q.4?
    Thanks
  • narayana murthy

    narayana murthy

    @narayana-z4W16q Oct 6, 2011

    mibawad
    All textbooks refer to the speed-torque curve for permanent magnet DC motor as a line in first quadrant as in the figure
    torque
    I am asking about what about the curve in Q.2, Q.3, and Q.4?
    Thanks
    same there will be no change on quarents but as i know that motor is a special type motor in many of cases DC motor means we take electromagnet type DC motor as ideal speed is constant for any load for DC motor but i dont know about these charecterstics