SpletMaximum torque in dc series motor is limited by _____ a) commutation b) heating c) field control d) all of the mentioned View Answer. Answer: a Explanation: Commutation is the … Splet04. maj 2024 · Maximal torque is usually on zero speed (or even more if you force it to rotate backwards). And the maximal current is usually a lot higher than the nominal on …
DC Machine Applications - Electrical Machines Questions
SpletThe maximum continuous current (torque) of a motor is limited by the motor drive to safeguard both the drive circuit and motor. SpletFor DC motors, operating and stall current are important. Operating current is the average amount of current the motor is expected to draw under typical torque. Stall current applies enough torque for the motor to run at stall speed, or 0RPM. miami to new port richey
D.C. Motor Torque/Speed Curve Tutorial:::Understanding Motor ...
Splet15. avg. 2024 · 1. No. The nominal (or rated) torque is a torque that motor delivers at nominal speed. The motor is the most efficient at that point. When you take a look at any … SpletBrought to you by Sciencing. Calculate torque (T) using the formula T = 5,252 x horsepower/rpm. The results are measured in pound-feet. For example, if you have a 40-horsepower motor designed to operate at a peak of 1,200 rpm, the formula would be T = (5,252 x 40)/1200 = 175.07 lb.-feet. Cite this Article. SpletAnswer (1 of 2): Motors will have a maximum safe no load speed but they can go much faster. 1- there is always a load, bearing friction resistance, windage, and torsion from micro misalignment, brush friction and possible internal fans all require some amount of torque. 2- Back EMF, or voltage ... miami to miramar beach fl