초록 ▼

A line synchronous generator with an exciter and generator stage. The exciter stage includes an exciter stator and an exciter rotor, and the generator stage includes a generator stator and generator rotor. In one embodiment, the stators are wound with primary windings for connection to an AC power s

A line synchronous generator with an exciter and generator stage. The exciter stage includes an exciter stator and an exciter rotor, and the generator stage includes a generator stator and generator rotor. In one embodiment, the stators are wound with primary windings for connection to an AC power source and the rotors are wound with secondary windings. In an alternative embodiment, the rotors are wound with primary windings for connection to the AC power source and the stators are wound with secondary windings. The proper phase angle alignment of the secondary windings are determined by connecting the primary windings of the exciter and generator stages to the AC power source, and connecting the a secondary winding of the exciter stage to a secondary winding of the generator stage. The remaining open secondary leads are then tested for two pairs having a voltage equal to two times the line voltage, and two pairs having a voltage equal to .sqroot.3 times the line voltage. The two pairs of open secondary leads having a voltage equal to two times the line voltage are connected together.

대표청구항 ▼

[ What is claimed is:] [1.] A method for determining phase alignment of a three-phase line synchronous generator, said line synchronous generator including an exciter stage having an exciter stator and an exciter rotor, one of said exciter stator and exciter rotor having a primary winding and the ot

[ What is claimed is:] [1.] A method for determining phase alignment of a three-phase line synchronous generator, said line synchronous generator including an exciter stage having an exciter stator and an exciter rotor, one of said exciter stator and exciter rotor having a primary winding and the other one of said exciter stator and exciter rotor having first, second and third secondary phase windings, and a generator stage having a generator rotor and a generator stator, one of said generator stator and generator rotor having a primary winding and the other one of said generator stator and generator rotor having first, second and third secondary phase windings, the method comprising:connecting the primary windings of the exciter and generator stages to a three-phase AC power source, said AC power source having a line voltage equal to Vm;connecting the first secondary phase winding of the exciter stage to the first secondary phase winding of the generator stage;measuring a voltage of approximately 2 Vm between the second secondary phase winding of the exciter stage and the second secondary phase winding of the generator stage;measuring a voltage of approximately 2 Vm between the third secondary phase winding of the exciter stage and the third secondary phase winding of the generator stage;connecting the second secondary phase winding of the exciter stage to the second secondary phase winding of the generator stage; andconnecting the third secondary phase winding of the exciter stage to the third secondary phase winding of the generator stage.