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Two identical synchronous machines A and B running at same speed are connected to each other through an inductor. Machine A is supplying an active power to Machine B and Machine B is supplying reactive power to Machine A, then which among the following is correct?
- a)|Va| > |Vb|
- b)|Va| < |Vb|
- c)|Va| = |Vb|
- d)None of the above
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Two identical synchronous machines A and B running at same speed are c...
Concept:
Active power is directly proportional to the load angle i.e. P ∝ δ
Reactive power is directly proportional to the voltage ∝ V
Application:
Machine A is supplying an active power to Machine B i.e.
⇒ δA > δB
Machine B is supplying reactive power to Machine A
⇒ |Va| < |Vb|
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Community Answer
Two identical synchronous machines A and B running at same speed are c...
Explanation:
Machine A is supplying active power to Machine B, which means Machine A is generating real power that is being consumed by Machine B. On the other hand, Machine B is supplying reactive power to Machine A, indicating that Machine B is providing reactive power support to Machine A.
Relationship between Voltage Magnitudes:
Since Machine A is supplying active power and Machine B is supplying reactive power, the voltage magnitude at Machine A (|Va|) would be less than the voltage magnitude at Machine B (|Vb|). This is because the reactive power flow from Machine B to Machine A causes a voltage rise at Machine B and a voltage drop at Machine A.
Therefore, the correct option is:
|Va| < />
Machine A is supplying active power to Machine B, which means Machine A is generating real power that is being consumed by Machine B. On the other hand, Machine B is supplying reactive power to Machine A, indicating that Machine B is providing reactive power support to Machine A.
Relationship between Voltage Magnitudes:
Since Machine A is supplying active power and Machine B is supplying reactive power, the voltage magnitude at Machine A (|Va|) would be less than the voltage magnitude at Machine B (|Vb|). This is because the reactive power flow from Machine B to Machine A causes a voltage rise at Machine B and a voltage drop at Machine A.
Therefore, the correct option is:
|Va| < />
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Two identical synchronous machines A and B running at same speed are connected to each other through an inductor. Machine A is supplying an active power to Machine B and Machine B is supplying reactive power to Machine A, then which among the following is correct?a)|Va| > |Vb|b)|Va| < |Vb|c)|Va| = |Vb|d)None of the aboveCorrect answer is option 'B'. Can you explain this answer?
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