Do prelab OBJECTIVES When you have completed this exercise y

OBJECTIVES When you have completed this exercise, you will be familiar with the simplified equivalent circuit of a three-phase synchronous generator. You will also be familiar with the voltage regulation characteristic of a three-phase synchronous generator when the generator supplies power to a resistive, an inductive, or a capacitive load. PRELAB l. What speed will a 2-pole synchronous machine operate on a 60-Hz system? DISCUSSION Equivalent Circuit of a Three-Phase Synchronous Generator Figure 1 shows the simplified equivalent circuit representing one phase of a three-phase synchronous generator. A complete three-phase synchronous generator would be represented by three circuits like the one in Figure 1.

Solution

speed of sychronous machine= (120×f)/p;

N=(120×60)/2=3600 rpm