A dc series motor has an armature current of 10 A at full load. The motor terminal voltage is 300 V. The armature and field resistances are 2 ? and 3 ?, respectively. The motor speed at full load is 250 rpm. Calculate the starting torque of the motor.
What will be an ideal response?
Note the very high starting torque for a series motor. Compare this torque with the
typical torque generated by dc motors of similar ratings. This is why the series
motors should not be started on a light load.
You might also like to view...
Why should red assembly lube be avoided?
A) Clogs filters B) Can harm friction disks C) Too slippery D) Looks like an ATF leak when it melts
Before deciding to purchase or install an open-loop system, the ____________________ must be evaluated first.
Fill in the blank(s) with the appropriate word(s).
What type of pump is a typical oil pump?
A) Hydraulically driven B) Centrifugal C) Positive displacement D) Piston-type
The major types of oil pumps used in an automatic transmission are
A) Gear, crescent, and vane. B) Gear, pressure, and rotor. C) Gear, crescent, and rotor. D) Gear, vane, and gerotor.