Power output is defined as torque times rotational speed. Since input power is proportional to output power, then at fixed RPM, the input power will change as the load changes.are there any motors that are able to maintain a constant torque no matter the rpm . so say it runs at 5000 rpm no load and 5000 rpms under load because the torque doesnt decrease with speed increase or decrease and pulls the same amount of power
you ask about motor with constant torque at variable speed or constant speed at variable torque?are there any motors that are able to maintain a constant torque no matter the rpm . so say it runs at 5000 rpm no load and 5000 rpms under load because the torque doesnt decrease with speed increase or decrease and pulls the same amount of power
my friend i believe that ,if there is load on synchronous motor then it draws more power,which is not desired .you ask about motor with constant torque at variable speed or constant speed at variable torque?
if you mean constant speed (5000rpm at noload and 5000 rpm at loaded)
you should use syncronous motor which is AC-motor
by Jeff Child
by Jake Hertz