Electrical Engineering · Electrical Measurements
According to Blondel's theorem, the power of an n-phase circuit can be measured by using a minimum of:
- 12n wattmeter elements
- 2(n + 1) wattmeter elements
- 3n wattmeter elements
- 4(n - 1) wattmeter elements✓
Correct answer
(n - 1) wattmeter elements
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