US 5,705,875 AGranted

Generator end winding system

AssigneeWestinghouse Electric Corp.

InventorsKevin Joseph Konrad, David Norwood Dorsey, John Barry Sargeant

Life of this patent

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Abstract

In an electrodynamic apparatus, a method of securing a coil basket of the type that includes a plurality of top coils and a plurality of bottom coils to a bracing assembly that includes a plurality of support braces includes steps of banding the top coil, the bottom coil and the support brace to each other; positioning a number of inflatable bladders, respectively, between the top coils and the bottom coils in the location of the bandings; and simultaneously inflating the bladders to a predetermined pressure that is sufficient to tension the bandings to a predetermined force, whereby forces that are transmitted to the coil basket from such inflation are imparted evenly throughout the coil basket and at the same time.

Claims7

Dependent claims

A vibration-proofed end winding region in an electrical generator, comprising:

a support brace lying in a generally radial plane;
a plurality of bottom coils;
a plurality of top coils, said top coils intersecting said bottom coils in a plurality of locations, respectively, near said support brace, said top coils and said bottom coils being attached to said support brace at said locations, respectively, by a plurality of bandings;
and
a U-shaped pressurized bladder having first and second portions, said first and second portions being positioned parallel to said plane and being further positioned between said top coils and said bottom coils at more than one of said locations, said bladder being pressurized at a predetermined pressure so as to tension the bandings to a predetermined force, whereby the top and bottom coils are effectively constrained against vibrational effects.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/712,656Filed 13 Sep 1996 · continuation
Priority: 1 Aug 1994
Granted: 6 Jan 1998
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H02K 15/26
Shaping or compacting winding heads: applying fastening means on winding heads
H02K 3/505
Fastening of winding heads, equalising connectors, or connections thereto: for large machine windings, e.g. bar windings
H02K 2203/09
Specific aspects not provided for in the other groups of this subclass relating to the windings: machines characterised by wiring elements other…
Y10T 29/49009
Electrical device making: dynamoelectric machine

Family

Serial283,592Parent of this continuation · filed 1 Aug 1994
US 5,705,875 AThis patent

From the US filing history. Foreign family members aren’t listed.

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