Westinghouse Electric Corporation

William G Moore

Warren W Jones

Louis E Nagoda

John C Larue

An enclosure for a collector set on a turbine generator includes a non-conducting transverse baffle which divides the enclosure into a separate compartment for each polarity. An aperture in the baffle forms with the generator shaft an annular passage through which cooling air passes from one compartment to the other and in so doing flows directly over the collector ring and brush sets in each compartment to provide more efficient cooling. A removable housing is guided into place over the collector set by a grooved guide which engages the top edge of the baffle and forms a seal between compartments. Single doors on each side of the housing provide access to both polarities and carry a seal, which mates with the baffle with the doors closed, to force the air to pass through the annular passage. An insulated safety handle above each door provides support when leaning inward to change brushes with the generator at full load, and discourages inserting both hands into the enclosure at once.

Apparatus for enclosing and cooling turbine generator collector sets

In a machine such as a turbine generator with a rotor whose end turns are covered by a continuous retaining ring, axial blocks and support blocks are used in an end turn bracing system with the axial block supported by the support blocks at intermediate locations and with openings through the axial blocks at those locations that have a greater axial extent than the support blocks and permit axial gas flow that avoids obstruction by the support blocks. The support blocks are provided of laminated material whose laminations run continuously throughout both major and minor legs of their L-shaped cross-sectional configuration to avoid delamination due to stresses encountered in operation.

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Winter Springs, FL, United States of America

William G Moore