Device and method for forming planar disk transformer windings
AssigneeABB Power T&D Company Inc.
InventorChaoukat Nasrallah
Life of this patent
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Abstract
A device and process which automatically forms centripetal transformer windings wound from outside diameter to inside diameter. The device includes an adjustable diameter ring which surrounds a mandril and can be clamped to or released from the mandril. Motors located on the ring each include a spacer arm which engages the mandril and a second arm which contacts and positions a wire at an adjusted radius as it is being wound into a turn of a transformer winding. The ring is vertically movable and the position of the second arm with respect to the mandril is also adjustable in order to form the turns of the transformer winding.
Claims8
A device for automatically winding a wire to form a centripetal transformer winding, comprising:
- a mandril;
- an adjustable diameter ring surrounding the mandril, the ring having a plurality of spacer arms connected thereto, each spacer arm comprising:
- means for contacting and holding the wire as it is wound into a turn of the transformer winding, the wire contacting the holding means and the holding means having a radial position with respect to the mandril which reduces the centripetal transformer winding diameter as the wire is wound;
- means connected to the adjustable diameter ring for lifting the ring after the formation of the centripetal transformer winding;
- means connected to the adjustable diameter ring for adjusting the diameter thereof;
- and
- means for controlling the adjusting means and the lift means for initially setting the diameter and vertical height of the ring to form a first transformer winding and subsequently adjusting the diameter of the ring and lifting the lift means to form additional turns of the transformer winding.
Dependencies are inferred from the claim text.