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Two single-phase transformers with turns ratio 1 and 2 respectively are connected to a 3-phase supply on the primary side as shown in the figure. The voltmeter V2, will read
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- 100 V
- 173 V
- 200 V
- 265 V
Correct Option: B
Voltmeter V2 read rms magnitude of the sum of two voltage phasors,
viz., 100 ∠0° + 2 × 100 ∠ – 120° υ2
= | 100 ∠0° + 200 ∠ – 120° |
= | 100 – 100 – j 100 √3 |
= | – j 100 √3 | = 173.2 V
