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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
a large induction motor is usually started by applying a reduced voltage across the motor such a voltage may be
a three-phase four-pole 220-v 60-hz induction machine with a per-phase resistance of 05 omega is operating at rated
a three-phase 440-v 60-hz four-pole induction motor operates at a slip of 0025 at full load with its rotor circuit
the rotor of a wound-rotor induction motor is rewound with twice the number of its original turns with a
a diode with the i-v characteristic shown in figure p728 is used in series with a voltage source of 5 v forward bias
a diode is connected in series with a voltage source of 5 v and a resistance of 1 k omega the diodes saturation current
with v 50 mv a certain diode at room temperature is found to have i 16 microa and satisfies i is e40v - 1 find the
a silicon diode is forward-biased with v 05 v at a temperature of 293 k if the diode current is 10 ma calculate the
a semiconductor diode with is 10microa and a 1-k omega resistor in series is forward-biased with a voltage source to
for the circuit shown in figure p7214 a determine the diode current and voltage and the power delivered by the voltage
consider the circuit shown in figure p7218 with ideal diodes in order to approximate a two terminal nonlinear resistor
a in the circuit shown in figure p7220 the zener diode with zero zener resistance operates in its reverse breakdown
an irreversible homogeous liquid phase reaction a-- gt bc is carried out in two isothermal flow reactors of 100 liters
a solvent recovery system delivers gas saturated with benzene vapor which analyses on a benzene-free basis 15 co2 4 o2