ACDC Machines Exam With Correct
Solutions 2024
What .conditions .must .be .met .before .two .alternators .can .be .parallel .together .- .correct
.answer.The .phases .of .rotation .must .be .the .same .phase, .A,B .and .C .is .one .machine .must
.be .in .phase .with .A,B .and .C .of .the .other .machine, .the .output .voltage .should .be .the .same,
.the .Output .voltages .must .be .in .phase
How .can .the .phase .rotation .of .one .alternator .be .changed .in .relationship .to .the .other
.alternator .- .correct .answer.By .reversing .the .connection .of .two .stator .leads
What .is .the .function .of .the .synchronizing .lamps .- .correct .answer.A, .NKS .phase .rotation .of
.the .two .machines, .B, .indicates .a .sequence .of .the .two .machines
What .is .Synchroscope .- .correct .answer.Instrument .used .for .paralleling .two .alternators,
.which .can .determine .difference .in .in .voltage .and .difference .in .frequency .between .the
.alternator
Assume .the .alternator .A .is .supplying .power .to .a .load .and .alternator .B .is .to .be .parallel .to
.to .a .after .paralleling .has .been .completed .what .must .be .done .the .permit .alternator .be .to
.share .the .load .with .alternator .a .- .correct .answer.The .input .power .of .alternator .be .must .be
.increased
What .two .factors .determine .the .output .frequency .of .an .alternator .- .correct
.answer.Number .of .stator .poles .and .speed .of .rotation
What .three .factors .determine .the .output .voltage .of .an .alternator .- .correct .answer.Length
.of .the .conductor .or .number .of .turns .of .the .amateur .or .stater, .strength .of .the .magnetic
.field .of .the .rotor, .speed .of .the .roger
What .are .silprings .use .for .a .revolving .field .type .alternator .- .correct .answer.To .supply
.excitation .current .to .the .rotor
Is .the .rotor .excitation .current .AC .or .DC .- .correct .answer.DC
When .a .brushless .excited .as .you .will .convert .AC .produced .in .the .armchair .whinding .in .to
.DC .before .the .supply .to .the .field .winding .- .correct .answer.A .three .phase .bridge .rectifer
Solutions 2024
What .conditions .must .be .met .before .two .alternators .can .be .parallel .together .- .correct
.answer.The .phases .of .rotation .must .be .the .same .phase, .A,B .and .C .is .one .machine .must
.be .in .phase .with .A,B .and .C .of .the .other .machine, .the .output .voltage .should .be .the .same,
.the .Output .voltages .must .be .in .phase
How .can .the .phase .rotation .of .one .alternator .be .changed .in .relationship .to .the .other
.alternator .- .correct .answer.By .reversing .the .connection .of .two .stator .leads
What .is .the .function .of .the .synchronizing .lamps .- .correct .answer.A, .NKS .phase .rotation .of
.the .two .machines, .B, .indicates .a .sequence .of .the .two .machines
What .is .Synchroscope .- .correct .answer.Instrument .used .for .paralleling .two .alternators,
.which .can .determine .difference .in .in .voltage .and .difference .in .frequency .between .the
.alternator
Assume .the .alternator .A .is .supplying .power .to .a .load .and .alternator .B .is .to .be .parallel .to
.to .a .after .paralleling .has .been .completed .what .must .be .done .the .permit .alternator .be .to
.share .the .load .with .alternator .a .- .correct .answer.The .input .power .of .alternator .be .must .be
.increased
What .two .factors .determine .the .output .frequency .of .an .alternator .- .correct
.answer.Number .of .stator .poles .and .speed .of .rotation
What .three .factors .determine .the .output .voltage .of .an .alternator .- .correct .answer.Length
.of .the .conductor .or .number .of .turns .of .the .amateur .or .stater, .strength .of .the .magnetic
.field .of .the .rotor, .speed .of .the .roger
What .are .silprings .use .for .a .revolving .field .type .alternator .- .correct .answer.To .supply
.excitation .current .to .the .rotor
Is .the .rotor .excitation .current .AC .or .DC .- .correct .answer.DC
When .a .brushless .excited .as .you .will .convert .AC .produced .in .the .armchair .whinding .in .to
.DC .before .the .supply .to .the .field .winding .- .correct .answer.A .three .phase .bridge .rectifer