## Note on Power Angle Characteristics of Cylindrical Rotor Synchronous Machine and Two Reaction Model of Salient Pole Machine.

• Note
• Things to remember

Power angle characteristics of cylindrical rotor synchronous machine:

Let us consider a synchronous machine connected to the infinite bus having a voltage of (Vt) also resistance Ra of machine neglected and only (Xs) is considered.

By solving the phasor diagrams.We can calculate;

This equation is known as phase angle equation of synchronous machine having cylindrical rotor.

The electrical power output for the salient pole machine is;

• The synchronous motor with salient pole but without field excitation or field winding is known as reluctance motor.
• On deriving power angle characteristics of cylindrical rotor, Ra of the machine is neglected and Xs is only considered.
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