DC motor efficiency
Hello,
I would like to know if the motor efficiency is changing with respect to applied voltage or it doesn't change. What I do mean. The efficiency=(V*I)/(Torque*velocity) and the power losses= I^2*R. Can I say that
mechanical power ( Torque*speed)=V*I-I^2*R
If so, can I say that the efficiency is not constant with torque and current changing?
Also, the torque is function in current
T=(motor constant*current)=km*I
What about the efficiency? Does the efficiency effect on the motor performance? Can I say
T=efficiency*motor constant*current
Many thanks
I would like to know if the motor efficiency is changing with respect to applied voltage or it doesn't change. What I do mean. The efficiency=(V*I)/(Torque*velocity) and the power losses= I^2*R. Can I say that
mechanical power ( Torque*speed)=V*I-I^2*R
If so, can I say that the efficiency is not constant with torque and current changing?
Also, the torque is function in current
T=(motor constant*current)=km*I
What about the efficiency? Does the efficiency effect on the motor performance? Can I say
T=efficiency*motor constant*current
Many thanks
Replies
You are reading an archived discussion.
Related Posts
Hello! all other Engineers.Many of you have been graduate,beome professional & many of you are not yet.I belong to the second part.Frankly speaking .....guys I am very ambitious,want to rule...
does ny1 know when the jntu-hyd 1st year regular xams (R09) results will b out?
Thanks for creating my interest in computer field for getting more knowledge in civil engineering.
Guys , I would like to know whether developing a game as a project using open-gl would be a good idea.Help me out...
Playstation Super Slim may arrive soon. Today, leaked images of Playstation Super Slim (slimmer than PS3 slim) have surfaced on the Internet. The system uses a new 'lid' type mechanism...