摘要:
A support system for a dynamoelectric machine is disclosed. In one embodiment, the support system includes: a mounting pad having a first face and a second face, the second face including a pair of slots; a pair of spring bars welded or brazed to the mounting pad at the pair of slots; a collar welded or brazed to the first face of the mounting pad; and a key bar between and affixed to the pair of spring bars.
摘要:
A stator core suspension system includes a spring bar(s) coupled to a stator core and a frame for vibrationally isolating the stator core from the frame. A longitudinal axis of the spring bar is positioned in a plane extending substantially perpendicular to an axis of the stator core. The stator core suspension system can be arranged in modular suspension sections for selective assembly into a related dynamoelectric machine.
摘要:
A stator core suspension includes a frame for supporting a stator core; a keybar coupled to a stator core section of the stator core; and a spring bar coupled to the frame and coupled to the keybar so as to be substantially aligned radially outboard of the keybar. A spring bar used in the stator core suspension may also include a substantially uniform cross-section throughout a length thereof, which may also be rectangular or round in cross-section.
摘要:
Grooves are formed in the pole faces of a multi-pole rotor body. Spacers are provided for insertion into the grooves and have radial outward projections for engaging between shield segments and enclosure rings. By providing spacers with variable width projections, the axial gap between adjacent enclosure rings and shield segments is adjusted to adjust the ventilation flow from within the rotor body.
摘要:
End windings of the field windings of a generator rotor body are flattened. A cap having a flat undersurface overlies the flattened end windings and an enclosure ring extends about the end windings and cap. Apertures are formed through the cap in communication with gaps between the coils of the end windings and passageways formed along the outer surface of the cap. The passageways and apertures form ventilation paths for a cooling medium flowing through the end windings outwardly into the air gap between the rotor body and stator.
摘要:
A support system for a dynamoelectric machine is disclosed. In one embodiment, the support system includes: a mounting pad having a first face and a second face, the second face including a pair of slots; a pair of spring bars welded or brazed to the mounting pad at the pair of slots; a collar welded or brazed to the first face of the mounting pad; and a key bar between and affixed to the pair of spring bars.
摘要:
In one embodiment, a system includes a generator frame that includes a spring ring configured to mount removably between an outer annular support and a stator. The spring ring includes a first guide configured to circumferentially align the spring ring to the outer annular support, and a second guide configured to circumferentially align the spring ring to the stator.
摘要:
A rotor in a electrical machine comprises a magnetic core having at least two poles, a plurality of winding assemblies, one for each pole, and a damper winding enclosing at least a portion of the magnetic core and winding assemblies. The damper winding has (i) a plurality of electrically conductive rings concentric with a rotational axis of the magnetic core and (ii) a plurality of bars extending parallel to the rotational axis of the magnetic core and connecting to each of the rings. A radially outward surface of each of the bars is connected to a respective radially inner surface of each of the rings. A spindle of the magnetic core has first and second flat surfaces extending perpendicular to a direct axis of the magnetic core. The magnetic core may include first and second projections extending in opposite directions along the quadrature axis.
摘要:
A stator core suspension includes a frame for supporting a stator core; a keybar coupled to a stator core section of the stator core; and a spring bar coupled to the frame and coupled to the keybar so as to be substantially aligned radially outboard of the keybar. A spring bar used in the stator core suspension may also include a substantially uniform cross-section throughout a length thereof, which may also be rectangular or round in cross-section.
摘要:
A method for assembling an electric machine is provided. The method includes providing a rotor having a cavity formed therein. At least one contoured recess is formed in a portion of the cavity. A wedge is inserted into the cavity. The wedge includes at least one contoured protrusion that is configured to mirror the at least one contoured recess of the cavity. The wedge is inserted such that the at least one contoured protrusion is positioned within the at least one contoured recess to facilitate positioning the wedge within the cavity. The at least one contoured protrusion and the at least one contoured recess are shaped to facilitate minimizing stresses within the rotor and the wedge.