Question

A figure in the following shows a connection between a synchronous generator and a synchronous motor. The rated specifications of each of the two machines are also shown. Pout(G)Pin(M) Synchronous Pin(G) Synchronous Pout(M) C. Generator Motor Sync. Generator Specifications Sync. Motor Specifications Terminal Voltage 480 V | Terminal Voltage Power Factor 0.8 lagging Power Factor 0.8 leading Apparent Power 200-kVA Active Power 40-kW Frequency 50 Hz Frequency Y (wye) Connection 0.30Synch Reactance 0.0 Ω I Armature Resistance 50 Hz Connection Y (wye) Synch. Reactance 09 Ω Armature Resistance On the basis of the given information, answer the following questions: a. Explain the nature of connection which exists between both of the machines, power handling capacities of both of the machi nes and your views about the functionality of the given system? PLO-1, CLO-1 Marks-10 b. Predict what happens if 04 more synchronous motors of same power are connected with PLO-1, CLO-1 Marks 10 the existing one? Determine the rated speed both in rev/m and rad/s at which the synchronous generator's shaft is to be rotated if the number of poles of the generator is 047 c. PLO-1, CLO2 Marks 02+02 d. If the synchronous motor has thrice the number of poles as that of the generator than determine the motor's shaft torque if it is operated at rated power? PLO-1, CLO-2 Marks 02 e. Now suppose, the synchronous generator is adjusted to have a terminal voltage of 480 Vv only one motor is connected at the generator output and draws the rated power at unity power factor. Determine the magnitudes and angles of EA for both machines? Marks-02+02 PLO-1, CLO-2 Now considering part-e, if the motor is to be derived at double of its rated load, determine the magnitudes and angles of Ea for both machines? PLO-1, CLO-2 Marks 02+02 g,. Sketch the phasor diagrams of both machines separately which shows the change in load? f. PLO-1, CLO-2 Marks 02+02 h. If the flux of the motor is increased by 6%, determine the new terminal voltage of the PLO-1, CLO-2 Marks-02 power system? Select a three phase/single phase induction motor to act as a prime mover to the given synchronous generator (shown below),. This new system must be able to derive the load i. PLO-2, CLO-2 Marks-20 mentioned in Part-b Sync. Sync. C. Motor Generator |→ Motor

need full solution plz

Answer 1

Q.no (c), (d) and (h) are solved given below:-

Specipication th ea 02 sto ef

3x4 4- X1。3 S2,3 0.06φ 2.

ER t2 Sて Valve-