When you reduce Volts, probably Amperes will decrease too, and mechanical efficiency will be affected too. So it is hard to tell exactly. Suppose Amp will not change a lot, then HP is 20%-50%. Torque is in proportion to HP when speed is fixed.
-vista(Shukang);
2006-3-27(#194@38)
I have a same thought like yours. But I don't have book to prove it. Now I have a motor which I will run under voltage to reduce the torque. I want to know the FLA on the lower voltage.
-jgl(JGL);
2006-3-27(#195@38)