Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
a 100-turn coil in the configuration of figure p1213 is rotated at a constant speed of 1200 rmin in a magnetic field
the 50-turn coil in the configuration of figure p1213 is rotated at a constant speed of 300 rmin the axis of rotation
a 100-kw 230-v shunt generator has ra 005 omega and rf 575 omega if the generator operates at rated voltage calculate
a 50-kw 230-v compound generator has the following data armature-circuit resistance 005 omega series-field circuit
repeat the calculations of problem 1348 for a machine that is a long-shunt compound generatorproblem 1348a 50-kw 250-v
an induction motor takes 350 kw at 08 power factor lagging while driving a load when an overexcited synchronous motor
a dc series motor is connected to a load the torque varies as the square of the speed with the diverter-circuit open
when delivering rated load a 10-kw 230-v self-excited shunt generator has an armature-circuit voltage drop that is 6 of
a 10-hp 250-v shunt motor has an armature circuit resistance of 05 omega and a field resistance of 200 omega at no load
a 100-kw 250-v shunt generator has an armature-circuit resistance of 005 omega and a field circuit resistance of 60
two identical three-phase 33-kv wye connected synchronous generators operating in parallel share equally a total load
an industrial plant consumes 500 kw at a lagging power factor of 06a find the required kva rating of a synchronous
a three-phase wye-connected 2500-kva 6600- v 60-hz turbo alternator has a per-phase synchronous reactance and an
a three-phase wye-connected round-rotor 220- v 60-hz synchronous motor having a synchronous reactance of 127 omega per
a three-phase wye-connected cylindrical-rotor synchronous motor with negligible armature resistance and a synchronous
a 10-kw 230-v shunt generator with an armature-circuit resistance of 01 omega and a field circuit resistance of 230
the magnetization curve taken at 1000 rmin on a 200-v dc series motor has the following datathe armature-circuit
a dc series motor operates at 750 rmin with a line current of 100 a from the 250-v mains its armature-circuit
a 75-hp 250-v 1800-rmin shunt motor having a full-load line current of 26 a is started with a four-point starter the
two shunt generators operate in parallel to supply a total load current of 3000 a each machine has an armature
the no-load and blocked-rotor tests on a three phase wye-connected induction motor yield the following resultsbull
a squirrel-cage induction motor operates at a slip of 005 at full load the rotor current at starting is five times the
the power transferred across the air gap of a two pole induction motor is 24 kw if the electromagnetic power developed
a three-phase 5-hp 220-v six-pole 60-hz induction motor runs at a slip of 0025 at full load rotational and stray-load
a 500-hp wye-connected wound-rotor induction motor when operated at rated voltage and frequency develops its rated