Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. DCmotors

    Emag analysis on DC motors

    Has any body worked on emag FEA analysis on commutator DC motors(not PM brushless)? can you explain me how to select the symmetry, give boundry conditions etc?
  2. DCmotors

    AC vs DC

    Best is to use the DC motor with DC drive. Generally for unwinder application the motors with speed ratio of 1: 3 is used. At the start of the unwind, the macine operates at base speed, giving max. torque(you have to calculate) and as the dia. of the roll reduces, the machine operates in field...
  3. DCmotors

    AC vs DC

    As you might be aware, Speed control of DC motors is easy as compared to AC motors. Speed control of D C motors has two parts. 1) Constant torque control 2) Constant HP control In constant torque control, the armature voltage is varied from 0 to rated voltage to get speed from 0 to base speed...
  4. DCmotors

    Application of motor in the automative?

    Pesently the trend is to use DC motor for hybrid bus vehicle. IIT Delhi has recently completed the project of developing Eicher motors India 18 seater bus with DC motor(30 kW). Now they are going ahead with 90kW D C motor to be used in bus developed by Tata Engineering & Locomotive Ltd., Pune...
  5. DCmotors

    Calculation techniques for..

    we have a need for a calculation technique that will allow us to accurately calculate the Torque Pulsation Amplitudes and Frequencies associated with Large commutator DC Motor Designs based on machine geometry. Are there any softwares? Thanks in advance.
  6. DCmotors

    DC motor

    As long as there is no sparking at the brushes and you do not exceed the safe mechanical speed of the armature.

Part and Inventory Search

Back
Top