Parallel Operation of a Synchronous Generator with a Power System

Parallel Operation of a Synchronous Generator with a Power System A synchronous generator can be brought in for parallel operation with a power system in anyone of two method, exact synchroniz­ing and self-synchronizing. We will consider exact synchronizing. In this case (Fig 13), the instan­taneous emf of a generator phase, say, eA1, must be equal […]
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The Electromagnetic Torque and the Load-Angle Characteristic of a Synchronous Generator

The Electromagnetic Torque and the Load-Angle Characteristic of a Synchronous Generator Le t us see how the power P and the electromagnetic torque Tem of a synchronous generator depend on the load angle θ (θ < 0) . To this encl, we will refer to the phasor diagram in Fig 8. The electric power supplied […]
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The Equivalent Circuit and a Simplified Phasor Diagram for a Phase of a Synchronous Generator

The Equivalent Circuit and a Simplified Phasor Diagram for a Phase of a Synchronous Generator The equivalent circuit answering the equation of electric slate of a stator phase of a synchronous generator is shown in Fig 4 a. Now we will construct a phasor diagram for a phase of a synchronous generator. To do this, […]
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The Equation of Electric State for a Phase of a Synchronous Generator

The Equation of Electric State for a Phase of a Synchronous Generator The magnetic field of a loaded synchronous machine is excited not only by the excitation current in the rotor winding, but also by the currents in the phase windings of the stator (armature). This implies that, similarly to d.c. machines, synchronous machine experiences […]
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Production of a Sinusoidal EMF in a Synchronous Generator

Production of a Sinusoidal EMF in a Synchronous Generator The stator winding of a synchronous machine is constructed in the same fashion as that of an induction machine. However, in an induction machine the emfs in the stator phase windings are induced by a rotating magnetic field. In a synchronous machine the emfs in the […]
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Motoring and Generating Action of a Synchronous Machine

Motoring and Generating Action of a Synchronous Machine Like other electrical machines, synchronous machines may be operated either as generators or as motors. Which action of, the two does take place depends on the interaction between the magnetic fields set up by the currents in the stator and rotor windings. Consider the operation of a […]
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