A 10 hp eight-pole, three-phase Y- connected wound rotor induction motor (WRIM) is supplied from a...

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A 10 hp eight-pole, three-phase Y- connected wound rotor induction motor (WRIM) is supplied from a three-phase, 400 V, 200 Hz controlled supply. If it is operating at full-load with 5% slip, determine: [A] The synchronous speed in rpm unit. [B] The speed of the revolving air gap field. [C] The speed of the stator structure. [D] The speed of the revolving stator field relative to the stator structure. [E] The speed of the revolving rotor field relative to the stator structure. [F] The speed of the revolving rotor field relative to the stator field distribution. [G] The frequency of the stator currents. [H] The speed of the rotor structure. [I] The frequency of the rotor currents. [J] The speed of the revolving rotor field relative to the rotor structure. [K] The shaft load torque of the motor. [L] The rotor induced voltage if the stator-to-rotor turns ratio is unity. A 10 hp eight-pole, three-phase Y- connected wound rotor induction motor (WRIM) is supplied from a three-phase, 400 V, 200 Hz controlled supply. If it is operating at full-load with 5% slip, determine: [A] The synchronous speed in rpm unit. [B] The speed of the revolving air gap field. [C] The speed of the stator structure. [D] The speed of the revolving stator field relative to the stator structure. [E] The speed of the revolving rotor field relative to the stator structure. [F] The speed of the revolving rotor field relative to the stator field distribution. [G] The frequency of the stator currents. [H] The speed of the rotor structure. [I] The frequency of the rotor currents. [J] The speed of the revolving rotor field relative to the rotor structure. [K] The shaft load torque of the motor. [L] The rotor induced voltage if the stator-to-rotor turns ratio is unity.

Answer rating: 100% (QA)

Given HP rating 10 hp Number of poles 8 Phase Threephase Connection Yconnected Supply voltage 400 V Supply frequency 200 Hz Slip 5 A Synchronous speed The synchronous speed of a WRIM can be calculated ... View the full answer