Question

What does the synchronous reactance (Xd) represent in a generator?

A. The resistance of the generator's rotor.
B. The reactance of the generator's stator.
C. The reactance seen by the generator's rotor during synchronous operation.
D. The resistance seen by the generator's rotor during synchronous operation.

Answer 1

The synchronous reactance (Xd) represents the reactance seen by the generator's rotor during synchronous operation.

Step-by-step explanation:

The synchronous reactance (Xd) represents the reactance seen by the generator's rotor during synchronous operation. It is a measure of the rotor's opposition to the flow of current. The unit of synchronous reactance is the ohm. It is important to note that synchronous reactance is specific to generators and is different from inductive or capacitive reactance.