2007-12-30 22:23:40 · 6 answers · asked by L 1 in Science & Mathematics ➔ Engineering
See page 65 of http://books.google.com/books?id=DGQNeP7bVJIC&pg=PA64&lpg=PA64&dq=universal+motor+construction&source=web&ots=g0grPwpiHY&sig=_rhPDDdDevlHnUd_GcOze0HgLhc
A universal motor differs in that
the field core is laminated
The field winding has fewer turns to reduce inductance
High permeability silicon steel is used to reduce hysteresis loss.
A compensating winding is added in series with the armature to reduce inductance
The changes are necessary but make for a less efficient motor than a DC motor.
2007-12-31 07:36:30 · answer #1 · answered by Anonymous · 0⤊ 0⤋
A DC motor has "brushes" so will work on AC or DC. A "normal" motor is an induction motor which only works on AC. DC motors are smaller in size for the same power and can easily be speed controlled.
2016-05-28 05:12:24 · answer #2 · answered by karol 3 · 0⤊ 0⤋
There are no differences. It has same principle and cosntruction. except that in application DC series motor is a large motor for a heavy load aplication. while universal motor can either plug in AC and DC, its uses are in small tools and appliances such as drill, planer, some washing machines.
2007-12-30 22:40:38 · answer #3 · answered by Synchronizers 3 · 1⤊ 1⤋
I would have to say that DC runs on DC current. Universal can probably run on both AC and DC currents.
2007-12-30 22:28:02 · answer #4 · answered by Daniel R 4 · 0⤊ 0⤋
DC motor runs off DC current,
universal runs off ac or DC,
2007-12-30 22:27:43 · answer #5 · answered by William B 7 · 0⤊ 0⤋
Look on Wikipedia under electric motor. A universal motor also runs on AC as well as DC.
2007-12-30 22:26:37 · answer #6 · answered by Anonymous · 0⤊ 0⤋