Winding body of high-voltage winding and high-voltage winding
A high-voltage winding and winding body technology, applied in the direction of transformer/inductor coil/winding/connection, transformer/inductor cooling, preventing/reducing unnecessary electric/magnetic influence, etc., can solve the problem of poor heat dissipation of high-voltage coils , poor short-circuit impact resistance, harsh operating environment, etc., to achieve good heat dissipation, good short-circuit impact resistance, and reliable winding
Pending Publication Date: 2022-04-08
JIANGSU SHENMA ELECTRIC CO LTD
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Problems solved by technology
Although dry-type transformers have made great progress in the past 10 years, there are still problems such as insulation cracking, poor heat conduction, and harsh operating environments during operation.
[0003] Especially for the structure of high voltage windings of dry-type transformers, when the wires in the current high voltage windings are wound, they are directly wound on the tooling to form high voltage coils, and then cast to form high voltage coils. Winding, resulting in poor heat dissipation of high-voltage coils and poor short-circuit impact resistance
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[0039] As required, specific embodiments of the present application will be disclosed herein. However, it should be understood that the embodiments disclosed here are merely typical examples of the application, which can be embodied in various forms. Therefore, specific details disclosed herein are not to be considered limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present application in any appropriate way in practice, This includes taking various features disclosed herein and combining features that may not be expressly disclosed herein.
[0040] The "connection" mentioned in this application should be interpreted in a broad sense unless otherwise specified or limited, and may be a direct connection or a connection through an intermediary. In the description of the present application, it should be understood that the orientation or positional relationship indicated by "upper", "lower"...
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Abstract
The winding body comprises a plurality of winding plates arranged in the circumferential direction, a plurality of winding grooves are formed in the winding plates to enable the winding plates to form a plurality of comb teeth, and the height of the comb teeth in the length direction of the winding plates is defined as the tooth height. The tooth height of the comb teeth in the middle of the wire winding plate and the tooth height of the comb teeth at the two ends of the wire winding plate are both larger than the tooth height of the comb teeth of other parts of the wire winding plate. The invention further discloses a high-voltage winding which comprises the winding body. According to the winding body, the wire can be wound more firmly, and the formed high-voltage coil structure has better mechanical strength, better heat dissipation capability and better short-circuit impact resistance.
Description
technical field [0001] The present application relates to the technical field of power transformers, in particular to a winding body of a high-voltage winding and a high-voltage winding. Background technique [0002] At present, transformers can be divided into: oil-immersed transformers, dry-type transformers, and gas transformers. Dry-type transformers have the advantages of no oil, fire prevention, long life, energy saving, low noise, simple maintenance, safety and reliability. Most of the dry-type transformers currently on the market are dry-type transformers with resin-cast high-voltage windings and open dry-type transformers. Although dry-type transformers have made great progress in the past 10 years, there are still problems such as insulation cracking, poor heat conduction, and harsh operating environments during operation. [0003] Especially for the structure of high-voltage windings of dry-type transformers, when the wires in the current high-voltage windings a...
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IPC IPC(8): H01F27/30H01F27/34H01F27/08
Inventor 马婷婷张鑫鑫周曙琛张小容刘超马斌
Owner JIANGSU SHENMA ELECTRIC CO LTD