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MMLU-Pro / 12069 / A 5-kva transformer has a nominal voltage rating of 1,100/110 volts. With the…

Problem

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

question

A 5-kva transformer has a nominal voltage rating of 1,100/110 volts. With the low-voltage winding short-circuited, it is found by experiment that 33 volts is required to circulate rated full-load current, and the corresponding power input is 85 watts. Find the percent regulation when the load takes rated current at a power factor of 80 percent, lagging.

category

engineering

options

  1. 1.25%
  2. 5.00%
  3. 2.45%
  4. 4.85%
  5. 3.25%
  6. 3.85%
  7. 2.10%
  8. 2.85%
  9. 4.15%
  10. 1.85%

src

stemez-ElectricalMachines

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Source and history

upstream_id / Original problem ID
12069
task_id
479ab2f4-3ee6-51fb-8255-094db07eda84
task_key
default--test--12069
task_revision_id
1
config / split
default / test

Official source

initial import