In a synchronous motor armature current flows due to
revolving flux which in turn rotates the load,but in no
load condition armature current is zero hence thr is no
revolving flux then how motor rotates?
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Answer Posted / amrita
When syn motrr is at no load, armature draws current
required for magnetisation.
As supply having some freq. so field flux continues 2
rotate at syn speed.
In syn motor speeed is constant from noload 2 full load.
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