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MMLU-Pro / 11606 / A 420 V,50 Hz,3-phase, star-connected, 6-pole induction motor having stator and…

Problem

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question

A 420 V,50 Hz,3-phase, star-connected, 6-pole induction motor having stator and referred-rotor leakage impedances both given by (1.0 + j2.0) \Omega/ph, drives a pure-inertia load at 960 r/min. The total inertia of the drive is J = 3.0 kg-m^2. Estimate the time to bring the drive to standstill by plugging. Neglect friction,windageand load torques other than inertial, and the effect of transient switching torques.

category

engineering

options

  1. 6.0s
  2. 7.0s
  3. 5.0s
  4. 10.0s
  5. 2.0s
  6. 4.0s
  7. 3.5s
  8. 4.5s
  9. 9.5s
  10. 8.0s

src

stemez-ElectricalMachines

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