An energy-saving dry-type transformer with deformed wheel edge treatment

Abstract

The invention discloses an energy-saving dry type transformer for abnormal wheel edge treatment. The structure of the energy-saving dry type transformer comprises an edge spewing device, a base, a coil assembly, a terminal, an iron core and two hoisting lugs, wherein the edge spewing device is fixed to the lower end of the base horizontally, and the edge of the edge spewing device is tightly laminated to the inner container of the coil assembly; the terminal is arranged at the front end of the iron core through bolts; the two hoisting lugs are tightly laminated to the internal thread on the top of the iron core; and the upper end cross beams of the iron core are fixed to the top of the base and are parallel to each other. In conclusion, the iron core is rapidly treated by using abnormal wheel side gaps of a multi-layer wheel rim after improvement, the insulation of an insulating layer in long term operation is maintained, and the fault of serious heating due to internal multipoint earthing caused by connection among silicon steel sheets because of moisture is avoided.

Description

technical field [0001] The invention relates to the technical field of energy conservation and environmental protection, and in particular discloses an energy-saving dry-type transformer with deformed wheel edge treatment. Background technique [0002] The dry-type transformer is a transformer whose iron core and winding are not immersed in insulating oil. The internal iron core is made of sheet-shaped silicon steel, and then an insulating layer is applied to the gaps between the silicon sheets for insulation. Dry-type generally adopts air cooling. Forced heat dissipation, or natural cooling through convection, but there are still some problems that need to be improved to avoid damage: [0003] Due to the action of the load, when the internal iron core is working, the internal electromagnetic circulation surges, causing a certain heating of the iron core, especially the middle paint layer is in a high temperature state for a long time, and the high-voltage and low-voltage co...

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Problems solved by technology

[0002] The dry-type transformer is a transformer whose iron core and winding are not immersed in insulating oil. The internal iron core is made of sheet-shaped silicon steel, and then an insulating layer is applied to the gaps between the silicon sheets for insulation. Dry-type generally adopts air cooling. Forced heat dissipation, or natural cooling through convection, but there are still some problems that need to be improved to avoid damage:

[0003] Due to the action of the load, when the internal iron core is working, the internal electromagnetic circulation surges, causing a certain heating of the iron core, especially the middle paint layer is in a high temperature state for a long time, and the high-voltage and low-voltage coils are nested together, resulting in The temperature is high, and the side paint layer is formed by the combination of multiple pieces of silicon steel, so it ages and falls off the fastest. Once it falls off, it is easy to cause a decrease in insulation, excessive grounding points, and burnout.

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