Assignment:
Synchronous Generator
A 250 kVA, 280 V, three-phase, four-pole, 60 Hz, synchronous generator with a synchronous reactance of 0.99 ohms per phase is operating at rated conditions and a power factor of 0.832 lagging. The magnetization curve for the generator is shown.
a. Sketch a phasor diagram for the generator.
b. Name the 2 curves shown on the graph, and indicate briefly how they are found. Why is it that one is a straight line, but the other exhibits a curve?
c. Determine:
- the excitation voltage (magnitude and angle)
- the open-circuit phase voltage
- the voltage regulation
- the no-load voltage if the field current is reduced to 60% of its value at rated load.
Please review the document enclosed here:
Attachment:- Electrical Energy Conversion.rar