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Consider the following statements: 

1. A grid connected induction generator always supplies leading reactive power to the bus 

2. An overexcited synchronous motor draws current at a lagging power factor 

3. An underexcited synchronous generator connected to an infinite bus works at a leading power factor 

4. The torque angle of a synchronous machine is the angle between the excitation voltage and the gap voltage 

 Of these statements 

 (a) 1 and 2 are correct (b) 3 and 4 are correct (c) 1, 3 and 4 are correct (d) 1, 2, 3 and 4 are correct 

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1 Answer

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Consider the following statements: 

1. A grid connected induction generator always supplies leading reactive power to the bus 

2. An overexcited synchronous motor draws current at a lagging power factor 

3. An underexcited synchronous generator connected to an infinite bus works at a leading power factor 

4. The torque angle of a synchronous machine is the angle between the excitation voltage and the gap voltage 

 Of these statements 

 (a) 1 and 2 are correct (b) 3 and 4 are correct (c) 1, 3 and 4 are correct (d) 1, 2, 3 and 4 are correct 

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