Hi guys! Can somebody help me solve this question ?
For this DCmotor: Ra(or Ram) = 0:05
, Vdc = 120V , Vbrush = 0 V .
No-load speed n0 = 1800 turns=minute
Find:
Maximum Torque and maximum current
What is the eciency of this motor when n = 1600 turns=minute

Question

Hi guys! Can somebody help me solve this question ?
For this DCmotor: Ra(or Ram) = 0:05
, Vdc = 120V , Vbrush = 0 V .
No-load speed n0 = 1800 turns=minute
Find:
Maximum Torque and maximum current
What is the eciency of this motor when n = 1600 turns=minute

anonymous · Answer

ys thank you

anonymous · Answer

What course is this? Don't you mean efficiency. http://mplab.ucsd.edu/tutorials/DC.pdf http://vlab.ee.nus.edu.sg/~bmchen/courses/EG1108_DCmotors.pdf http://lancet.mit.edu/motors/motors3.html http://opencourseware.kfupm.edu.sa/colleges/ces/ee/ee360/files%5C3-Lesson_Notes_Lec_16_DC_Motors_II.pdf

anonymous · Answer

I just searched for 'dc motor efficiency equation' in my search engine.