Wind power plant

Details Wind power plant Wind power plant

2006-06-13

2006-06-13

Mullins, Burton (Department: 2834)

Prime-mover dynamo plants

Electric control

Fluid-current motors

C310S196000, C310S208000, C174SDIG001, C174SDIG002

Reexamination Certificate

active

07061133

ABSTRACT:
The magnetic circuit of a generator in a wind power plant is arranged to directly supply a high supply voltage of 2-50 kV, preferably higher than 10 kV. The generator is provided with solid insulation and its winding includes a cable (6) comprising one or more current-carrying conductors (31) with a number of strands (36) surrounded by at least one outer and one inner semiconducting layer (34, 32) and intermediate insulating layers (33). The outer semiconducting layer (34) is at earth potential. The stator winding may be produced with full or fractional slot winding, the phases of the winding being Y-connected. The Y-point may be insulated and protected from over-voltage by means of surge arrestors, or else the Y-point may be earthed via a suppression filter. The invention also relates to a wind power plant, a generator included in the plant and a variable speed system for such a plant.

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