PPT Slide

Section 13.5: Performance Equations cont.

Example 13.2

Determine the voltage induced in the armature of a DC machine running at 1750 RPM and having four poles. The flux per pole is 25 mWb. and the armature is lap-wound with 728 conductors

Since the armature is lap-wound, p = a. So the emf equation yields:

E = fnZ(p/a)/60

= 25“10-3Wb.“1750 RPM“728“(p/a = 1)/60

= 530.8 V.

Previous slide

Next slide

Back to first slide

View graphic version