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
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