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MMLU-Pro / 11386 / (i) A 1000 kVA, 4600 V, three-phase, wye-connected alternator has an armature…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

(i) A 1000 kVA, 4600 V, three-phase, wye-connected alternator has an armature resistance of 2 ohms per phase and a synchronous armature reactance, X_s, of 20 ohms per phase. Find the full-load generated voltage per phase at: (a) Unity power factor (b) A power factor of 0.75 lagging (ii) Repeat part (i) to determine the generated voltage per phase at full load with: (a) A leading load of 0.75 PF (b) A leading load of 0.4 PF.

category

engineering

options

  1. 3600 V/phase, 4600 V/phase, 2200 V/phase, 1200 V/phase
  2. 3950 V/phase, 4950 V/phase, 2450 V/phase, 1450 V/phase
  3. 3845 V/phase, 4820 V/phase, 2360 V/phase, 1315 V/phase
  4. 3800 V/phase, 4800 V/phase, 2350 V/phase, 1320 V/phase
  5. 4000 V/phase, 5000 V/phase, 2500 V/phase, 1500 V/phase
  6. 3900 V/phase, 4900 V/phase, 2400 V/phase, 1400 V/phase
  7. 3700 V/phase, 4700 V/phase, 2300 V/phase, 1300 V/phase
  8. 3650 V/phase, 4650 V/phase, 2250 V/phase, 1250 V/phase
  9. 3850 V/phase, 4850 V/phase, 2380 V/phase, 1335 V/phase
  10. 3750 V/phase, 4750 V/phase, 2280 V/phase, 1285 V/phase

src

stemez-ElectricalMachines

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Source and history

upstream_id / Original problem ID
11386
task_id
adafb2ec-d220-54bd-8700-2ab3c170169a
task_key
default--test--11386
task_revision_id
1
config / split
default / test

Official source

initial import