# Q3.1 (5 marks) Discuss and explain the conditions required to be fulfilled before synchronising a ge

Q3.1 (5 marks) Discuss and explain the conditions required to be fulfilled before synchronising a generating unit to a power system. Use phasor diagrams, if convenient. 03.2 (5 marks) The synchroscope employs six light bulbs, two in series in each phase. Explain why the designer used of six, instead of three bulbs Q3.3 (2 marks) A transmission line having a characteristic impedance of 300 ohms is cut into two unequal sections, the shorter section being one-third the length of the original line. The characteristic impedance of the this section is (a) 100 ohms (b) 200 ohms (c) 300 ohms (d) None of the above. Choose the correct answer and explain why the chosen answer is correct.