Answer / ssnslm

there may be a possibility of sparking b/w slip ring and
brushes that will damage both.

Answer / rajendra sadaphale

if brushes are loose then it create sparking between
commutator and brushes and if it get tight there is
friction bitween them and reduce there speed.

Answer / kalimuddin

if itis loose then create spark b/n slip ring and if it is
tigth (heavily) then there is the possiblity of the damage
of the slip rings due to friction

Answer / sanjiv

If loose it will craate spark. If it is tighte it is
requirement only

Answer / vijay parekh

ti ensure pressure of all springs are even or equal load use our instrument to checking spring load instrument brush force meter m50 info@rishikesh.com this will save from damadging the brush and overloading
vijay parekh
www.rishikesh.com

Sir, how to calculate the voltage drop and short circuit current of cable. please give me example and formulas.

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