what happen if position of GNA and MNA is changed in machine?

what happen if position of GNA and MNA is changed in
machine?

Question Posted / praveen420

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what happen if position of GNA and MNA is changed in machine?..

Answer / abhidewas

ideally both MNA GNA should coincide. if they are interchanged then sparking at the brushes may happen. also because of armature reaction terminal voltage may decreased.

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what happen if position of GNA and MNA is changed in machine?..

Answer / kalidass

There is voltage drop due to armature reaction may happen

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7 Yes

3 No

what happen if position of GNA and MNA is changed in machine?..

Answer / suburavichandran

There will be a very high loss due to increased armature reaction. sometime the motor may become stand still.

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5 Yes

2 No

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