A fully sealed oil-immersed power transformer
A power transformer and oil-immersed technology, which is applied in the field of power transformers, can solve problems such as transformer sealing failure, maintenance cost increase, and impact on residents' electricity consumption, and achieve the effects of avoiding maintenance, prolonging service life, and avoiding failure of sealing performance
Active Publication Date: 2022-03-29
GUANGDONG POWER GRID CO LTD +1
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Problems solved by technology
[0005] The purpose of the present invention is to provide a fully sealed oil-immersed power transformer, which solves the problems of the seal between the existing oil-immersed transformer box body and the box cover due to external high temperature, rainy weather, and corroded locking bolts. Accelerated aging under environmental erosion leads to failure of transformer sealing and requires maintenance, which increases maintenance costs and affects residential electricity consumption
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0029] Such as Figure 1 to Figure 4 As shown, the present invention provides a fully-sealed oil-immersed power transformer, including chamber seals 1 arranged at the edge of the transformer case cover and the edge of the transformer case, and the chamber seal 1 is provided with a sealing ring 2 .
[0030] The cavity seal 1 includes a cavity cover 101 arranged at the edge of the transformer box cover and a cavity plate 102 arranged at the edge of the transform...
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The invention discloses a fully-sealed oil-immersed power transformer. A fully-sealed oil-immersed power transformer includes chamber seals arranged at the edge of the transformer box cover and at the edge of the transformer box. A sealing ring is provided; the cavity seal includes a cavity cover set at the edge of the transformer box cover and a cavity plate joint set at the edge of the transformer box. The present invention utilizes the cavity cover and the cavity The plate connector covers the entire sealing ring to isolate the external high temperature environment and external rainy weather from eroding the sealing ring, and avoid the failure of the sealing performance of the sealing ring caused by the accelerated aging of the sealing ring in the external environment. Secondly, through the chamber cladding plate and The cavity plate connector is connected and locked to the transformer box cover, which avoids the aging caused by corrosion of the sealing ring due to the use of bolts to lock it, prolongs the service life of the sealing ring as a whole, and avoids maintenance of the transformer due to the aging of the sealing ring.
Description
technical field [0001] The invention relates to the technical field of power transformers, in particular to a fully sealed oil-immersed power transformer. Background technique [0002] Oil-immersed transformers, that is, power transformers that use transformer oil as the insulating medium and cooling medium, have the advantages of low maintenance costs and long service life during normal operation. [0003] The existing oil-immersed transformer includes a casing and internal working components. The casing provides a working environment for the internal working components and provides protection from external environmental damage. The casing includes a box body for installing internal working components and a box cover for closing the box body. The body and the cover are sealed by rubber pads or oil-resistant rubber rods. [0004] Oil-immersed transformers are generally installed outdoors in the wind and the sun, making the sealed rubber pad or oil-resistant rubber rod vulne...
Claims
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IPC IPC(8): H01F27/23H01F27/02
CPCH01F27/23H01F27/02
Inventor 陈炽伟李伟峰李成发詹文仲
Owner GUANGDONG POWER GRID CO LTD