Shunt motors

C

Thread Starter

Christozz

A 25.5kw, 440 volt, four pole DC motor a wave wound armature with 826 conductor & the commutator has 150 segments. The full load efficiency is 88% and the shunt current is 1.407 ampere. The brushes are shifted backwards through 1.5 segments from the geometric neutral axis.

What are demagnetising and cross magnetising amperes per pole on full load?
 
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