Mathematics · Electrical Measurement Calculations
A 5 A, 230 V energy meter operating at full load unity power factor makes 60 revolutions in 360 seconds. If the normal disc speed constant is 520 revolutions per kWh, what is the percentage error of the meter?
- 10.33%✓
- 20.42%
- 30.98%
- 40.10%
Correct answer
0.33%
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