5 DC Generator Problems with Solution – Part 1

1. A shunt generator delivers 450 A at 230 V and the resistance of the shunt field and armature are 50 Ω and 0.03 Ω respectively. Calculate the generated e.m.f?

Solution:
The Generator Circuit is as shown in the figure,

2. A four pole generator having wave-wound armature winding has 51 slots, each slot containing 20 conductors. What will be the voltage generated in the machine when driven at 1500 rpm assuming the flux per pole to be 7.0 mWb ?

Solution:
For a simplex wave wound generator,

Testing a DC MotorSpeed Control of DC Motor (Shunt, Series and Compound) Dc series generator characteristicsCharacteristics of Series Wound DC Generators interpoles in dc generatorCompensating Windings and Interpoles in DC Machines dc generator open circuit characteristicsDC Generator Characteristics DC Shunt Generator CharacteristicsCharacteristics of DC Shunt Generator external-characteristics-of-dc-compound-generator.Characteristics of DC Compound Generator armature-reaction-dc-generatorArmature Reaction in DC Generator parallel operation of series dc generatorParallel Operation of DC Series Generator Testing a DC MotorTesting of DC Machines (DC Motor and DC Generator) types of dc generatorTypes of DC Generator – Series, Shunt and Compound

6 thoughts on “5 DC Generator Problems with Solution – Part 1”

  2. In dc generator wave wound:- Number of poles is not is equal to number of parallel path.
    Always A=2
    Or,
    In lap wound A=mP. Where,
    (A=no. of parallel path)
    (m=no. of winding)
    (P=no. of poles)
    I think it may be right…..

  3. Deduce the internal characteristics from the external characteristics and estimate the full load voltage drop due to armature reaction
    reply,
    please

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