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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 external-characteristics data of two shunt generators in parallel are given as followscalculate the load current
a three-phase wye-connected cylindrical-rotor synchronous generator rated at 10 kva and 230v has a synchronous
a three-phase wye-connected four-pole 400- v 60-hz 15-hp synchronous motor has a synchronous reactance of 3 omega per
the no-load and blocked-rotor tests conducted on a 110-v single-phase induction motor yield the following databull
for a 45-kva three-phase wye-connected 220- v synchronous machine at rated armature current the short-circuit load loss
a 4000-v 5000-hp 60-hz 12-pole synchronous motor with a synchronous reactance of 4 omega per phase based on
a three-phase wye-connected 2300-v 60-hz round-rotor synchronous motor has a synchronous reactance of 2 omega per phase
a 2300-v three-phase wye-connected round rotor synchronous motor has a synchronous reactance of 3 omega per phase and
an induction motor takes 350 kw at 08 power factor lagging while driving a load when an overexcited synchronous motor
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 cylindrical-rotor synchronous motor with negligible armature resistance and a synchronous
a wound-rotor induction machine driven by a dc motor whose speed can be controlled is operated as a frequency changer
a squirrel-cage induction motor operates at a slip of 005 at full load the rotor current at starting is five times the
a three-phase induction motor operating at its rated voltage and frequency develops a starting torque of 16 times the
a 500-hp wye-connected wound-rotor induction motor when operated at rated voltage and frequency develops its rated
the synchronous speed of a wound-rotor induction motor is 900 rmin under a blocked-rotor condition the input power to
a three-phase 220-v 60-hz four-pole wye connected induction motor has a per-phase stator resistance of 05 omega the
a three-phase 50-hp 440-v 60-hz four-pole wound-rotor induction motor operates at a slip of 003 at full load with its
using the approximate equivalent circuit in which the shunt branch is moved to the stator input terminals show that the
the per-phase equivalent circuit shown in figure 1326 of a three-phase 600-v 60-hz four pole wye-connected wound-rotor
a three-phase 2200-v 60-hz delta-connected squirrel-cage induction motor when started at full rated voltage takes a
a three-phase 400-v wye-connected induction motor takes the full-load current at 45 v with the rotor blocked the