PPT Slide
Section 13.5: Performance Equations cont.
If the armature of Example 13.3 rotates at 123.5 radians per second, what is the induced emf in the armature?
Assuming the armature has no resistance (so it’s lossless), then its electrical power equals its mechanical power, ergo:
\ E ´ 123.5 A. = 226.4 N.m ´ 123.5 rad./sec.
which has solution E = 226.4 V.