Answer Posted / ghanshyam

Is field is open.. Then whole current is flow in armature winding and we knoe that flux of dc shund moter become zero . Due to high current armature produce high speed so moter stare running in high speed condition but moter winding made for a particular current rating..... If we give a high current in armature then temp. Of winding increase and there is a possibility to insulation break down and armature winding may burn.....👍

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