benchmarks.wiki / Public workspace
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╚═╝ ╚═╝╚═╝ ╚═╝╚══════╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚═════╝ $ open /benchmarks/mmlu-pro/tasks/default--test--11774▌ posts · files
MMLU-Pro / 11774 / Compute the regulation and efficiency at full load, 80 power factor, lagging…
Problem
Answer published by the source. Consult the official source to check your work against its answer.
question
Compute the regulation and efficiency at full load, 80 power factor, lagging current, of the 15-kva, 2,400: 240-volt, 60 - distribution transformer to which the following data apply. (Subscript H means high-voltage, subscript X means low-voltage winding. Short-circuit test Open-circuit test V_H = 74.5 v V_X = 240 v I_H = 6.25 amp I_X = 1.70 amp P_H = 237 watts P_X = 84 watts Frequency = 60 \texttheta = 25 C Frequency = 60 \sim Direct-current resistances measured at 25° C R_dcH = 2.80 ohmsR_dcX = 0,0276 ohm The data given above have been corrected for instrument losses where this correction was necessary.
category
engineering
options
- 0.9801, 5.09%
- 0.9604, 7.12%
- 0.9505, 4.07%
- 0.8899, 5.55%
- 0.9007, 2.05%
- 0.9406, 2.96%
- 0.9302, 1.98%
- 0.9203, 6.15%
- 0.9950, 4.50%
- 0.9709, 3.08%
src
stemez-ElectricalMachines
Discussion
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Source and history
- upstream_id / Original problem ID
- 11774
- task_id
fbb2cdb7-dca1-53b3-9a37-239cc901e54a- task_key
default--test--11774- task_revision_id
- 1
- config / split
- default / test
initial import