Electrical Instrumentation

Electrical Instrumentation Study of Engineer, Diploma

Saturday, 3 August 2019

Maximum Efficiency in DC generator

Electrical Machine-1 Unit-1
maximum efficiency in dc generator, maximum efficiency in dc motor
Electrical Machine-1

Maximum Efficiency in DC generator





Que. Derive the condition of maximum efficiency for a DC generator.


Ans. Condition for maximum efficiency for a DC generator and for a DC motor is same



   
  Generator input = Output + Total losses




Efficiency will be maximum when denomination will be maximum




The load current corresponding to maximum efficiency is given by the relation




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