CN212209125U - Oil-immersed transformer protection casing - Google Patents

Oil-immersed transformer protection casing Download PDF

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Publication number
CN212209125U
CN212209125U CN202021347264.1U CN202021347264U CN212209125U CN 212209125 U CN212209125 U CN 212209125U CN 202021347264 U CN202021347264 U CN 202021347264U CN 212209125 U CN212209125 U CN 212209125U
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China
Prior art keywords
protective cover
winding displacement
oil
casing
fixedly arranged
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CN202021347264.1U
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Chinese (zh)
Inventor
张之才
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Kangsheng Transformer Jiangsu Co ltd
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Kangsheng Transformer Jiangsu Co ltd
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Priority to CN202021347264.1U priority Critical patent/CN212209125U/en
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Abstract

The utility model relates to a transformer technical field specifically is an oil-immersed transformer protection casing, including the shield casing, the upper end of shield casing is connected with the protection top cap, is provided with the refrigeration piece on the both sides face of shield casing, and the lateral surface of refrigeration piece is provided with aluminium system fin, and first winding displacement hole has been seted up to the other both sides face symmetry of shield casing, and the fixed winding displacement box that sets up on the first winding displacement hole passes through bolt fixedly connected with winding displacement box protective cover on the winding displacement box. The utility model discloses equipment such as high-low pressure sleeve pipe, conducting rod on protective cover casing and protection top cap and winding displacement box on transformer upper portion seal, prevent equipment oxidation corrosion, promote the life of transformer, the protection top cap on the protective cover casing makes things convenient for the protection in later stage, and the inside heat of protective cover casing is absorbed to the refrigeration piece to reduce the inside temperature of protective cover casing, pottery strip and the inside insulating varnish of winding displacement box protective cover prevent the short circuit, hoisting device's security.

Description

Oil-immersed transformer protection casing
Technical Field
The utility model relates to a protection casing especially relates to an oil-immersed transformer protection casing, belongs to transformer technical field.
Background
The transformer mainly comprises an iron core, a winding, an oil tank, an oil conservator, an insulating sleeve, a tap switch, a gas relay and the like, and can be divided into a three-phase transformer and a single-phase transformer;
the distribution transformer is one of important devices in power supply and distribution systems of industrial and mining enterprises and civil buildings, and reduces 10kV or 35kV network voltage to 230/400V bus voltage used by users, the product is suitable for alternating current 50 (60) Hz, the maximum rated capacity of three phases is 2500kVA, the product can be used indoors and outdoors, the product can be arranged on a pole when the capacity is 315kVA or below, the environmental temperature is not higher than 40 ℃, not lower than-25 ℃, the maximum daily average temperature is 30 ℃, the maximum annual average temperature is 20 ℃, the relative humidity is not more than 90 percent, and the altitude is not more than 1000 m;
most of the existing oil-immersed transformers are used outdoors, high-voltage and low-voltage sleeves, conducting rods and high-voltage and low-voltage wiring cables are exposed in the air for a long time and further influenced by sunlight and rain, and the conducting rods and the high-voltage and low-voltage wiring cables are oxidized and corroded by long-time wind, wind and rain, so that the service life of the transformers is shortened;
therefore, there is a need for an improved transformer protection device to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an oil-immersed transformer protection casing, equipment such as high-low pressure sleeve pipe, conducting rod on protection casing and protection top cap and winding displacement box on transformer upper portion seal, prevent to shine to drench and lead to equipment oxidation corrosion, promote the life of transformer.
In order to achieve the above object, the utility model discloses a main technical scheme include:
the oil-immersed transformer protective cover comprises a protective cover shell, wherein the upper end of the protective cover shell is provided with symmetrically distributed grooves, the upper end of the protective cover shell is movably connected with a protective top cover, and the bottom of the protective top cover is fixedly provided with a convex strip matched with the grooves;
the two side surfaces of the protective cover shell are provided with symmetrically distributed refrigeration sheet grooves, refrigeration sheets are fixedly arranged inside the refrigeration sheet grooves, and a plurality of uniformly distributed aluminum cooling fins are fixedly arranged on the outer side surfaces of the refrigeration sheets;
a plurality of evenly distributed's first winding displacement hole is seted up to the other both sides face symmetry of protective cover casing, the fixed pottery circle that is provided with in inside in first winding displacement hole, the fixed line box that arranges that sets up on the first winding displacement hole, arrange and pass through bolt fixedly connected with winding displacement box protective cover on the line box.
Preferably, the fixed mounting panel that is provided with a plurality of evenly distributed in bottom of protection casing, the one end of mounting panel with protection casing fixed connection, the other end of mounting panel and the upper end fixed connection of transformer.
Preferably, the upper portion of the protection top cover is fixedly provided with symmetrically distributed handles, and the handles are fixedly provided with anti-skidding sleeves.
Preferably, the refrigeration piece passes through wire and external power electric connection, the heat-absorbing surface of refrigeration piece with the medial surface contact of protection casing, the cooling surface of refrigeration piece with aluminium system fin fixed connection.
Preferably, a plurality of ceramic strips which are uniformly distributed are fixedly arranged on the wire arranging box, and a second wire arranging hole matched with the first wire arranging hole is formed between every two ceramic strips.
Preferably, a fixed connecting plate is fixedly arranged on one side face of the wire arranging box, and the fixed connecting plate is fixedly connected with one side face of the protective cover shell.
Preferably, the interior of the protective cover of the junction box is fixedly provided with insulating paint.
Preferably, a wire is arranged between every two ceramic strips, and one end of the wire penetrates through the second wire arranging hole and the first wire arranging hole and is electrically connected with the inner electric pole inside the protective cover shell.
The utility model discloses possess following beneficial effect at least:
1. equipment such as high-low voltage sleeve pipe, conducting rod on transformer upper portion is sealed with protection cover casing and protection top cap and winding displacement box, prevents to shine the rain and drench and lead to equipment oxidation corrosion, promotes the life of transformer.
2. The protection top cap on the protection casing can be opened by horizontal sliding, also can be directly upwards opened, makes things convenient for the maintenance and the maintenance in later stage, and hoisting device's flexibility, the upside of protection top cap are provided with the arch, shunts the rainwater effectively, prevents that the rainwater from getting into casing, hoisting device's leakproofness.
3. The refrigeration pieces are fixedly arranged on two sides of the protective cover shell, so that heat inside the protective cover shell can be absorbed and dissipated through the aluminum cooling fins, and the heat inside the protective cover shell is reduced.
4. The winding displacement box can lead out the wire and lead out through the winding displacement protective cover, and the sealing performance of the lifting device reduces the contact of air and the conducting rod, prevents the premature aging of the joint of the line, and therefore the practicability of the lifting device is improved.
5. Ceramic strip and the inside insulating varnish of winding displacement box protective cover prevent between two wires because the effect in magnetic field adsorbs together, arouse circuit fault, and ceramic strip and insulating varnish have insulating effect, hoisting device's security.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is an exploded view of the present invention;
fig. 2 is a perspective view of the present invention;
FIG. 3 is a perspective view of the flat cable box of the present invention;
fig. 4 is a top view of the present invention;
fig. 5 is a left side view of the protective cover of the cable box of the present invention.
In the figure, 1-protective cover shell, 101-groove, 102-refrigerating sheet groove, 103-first line arranging hole, 2-protective top cover, 201-convex strip, 3-refrigerating sheet, 4-aluminum radiating sheet, 5-line arranging box, 501-fixed connecting plate, 502-line arranging box protective cover, 503-ceramic strip, 504-second line arranging hole, 6-handle, 601-anti-slip sleeve, 7-wire, 8-mounting plate, 9-bolt, 10-ceramic ring and 11-insulating paint.
Detailed Description
Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.
As shown in fig. 1 to 5, the oil-immersed transformer protective cover provided in this embodiment includes a protective cover housing 1, the upper end of the protective cover housing 1 is provided with symmetrically distributed grooves 101, the upper end of the protective cover housing 1 is movably connected with a protective top cover 2, the bottom of the protective top cover 2 is fixedly provided with a raised strip 201 used in cooperation with the grooves 101, the protective top cover 2 on the protective cover housing 1 can be opened by sliding left and right, and can also be opened directly upwards, so as to facilitate later maintenance and repair, improve flexibility of the device, the upper side of the protective top cover 2 is provided with a protrusion, effectively shunt rainwater, prevent rainwater from entering the housing, and improve sealing performance of the device;
the two side surfaces of the protective cover shell 1 are provided with symmetrically distributed refrigeration sheet grooves 102, refrigeration sheets 3 are fixedly arranged inside the refrigeration sheet grooves 102, a plurality of uniformly distributed aluminum cooling fins 4 are fixedly arranged on the outer side surfaces of the refrigeration sheets 3, the refrigeration sheets 3 are electrically connected with an external power supply through leads, heat absorbing surfaces of the refrigeration sheets 3 are in contact with the inner side surfaces of the protective cover shell 1, and heat radiating surfaces of the refrigeration sheets 3 are fixedly connected with the aluminum cooling fins 4;
protection casing 1's the first line hole 103 that a plurality of evenly distributed was seted up to the other both sides symmetry, the fixed ceramic circle 10 that is provided with in inside of first line hole 103, fixed setting row line box 5 that sets up on the first line hole 103, arrange line box 5 and go up through bolt 9 fixedly connected with row line box protective cover 502, arrange line box 5 and can draw wire 7 and draw through in arranging line protective cover 502, hoisting device's leakproofness, reduce the contact of air and conducting rod, prevent the too early ageing of junction of circuit, thereby hoisting device's life.
In this embodiment, as shown in fig. 1 and 4, four uniformly distributed mounting plates 8 are fixedly arranged at the bottom of the shield case 1, one end of each mounting plate 8 is fixedly connected with the shield case 1, the other end of each mounting plate 8 is fixedly connected with the upper end of the transformer, and the sealing performance and the use stability of the device are improved.
In this embodiment, as shown in fig. 1 and fig. 2, the handles 6 that are symmetrically distributed are fixedly arranged on the upper portion of the protection top cover 2, and the anti-slip sleeves 601 are fixedly arranged on the handles 6, so that the protection top cover 2 can be conveniently opened to overhaul and maintain the device, and the overhaul efficiency is improved.
In this embodiment, as shown in fig. 3, a plurality of ceramic strips 503 uniformly distributed are fixedly arranged on the winding displacement box 5, a second winding displacement hole 504 matched with the first winding displacement hole 103 is formed between every two ceramic strips 503, and an insulating paint 11 is fixedly arranged inside the winding displacement box protective cover 502, in this embodiment, as shown in fig. 1, a conducting wire 7 is arranged between every two ceramic strips 503, one end of the conducting wire 7 passes through the second winding displacement hole 504 and the first winding displacement hole 103 and is electrically connected with an inner electric pole inside the protective cover housing 1, so as to prevent the two conducting wires from being adsorbed together due to the action of a magnetic field to cause a circuit fault, the ceramic strips 503 and the insulating paint 11 have an insulating effect, and the safety of the device is improved.
In the present embodiment, as shown in fig. 1 and fig. 3, a fixed connection board 501 is fixedly disposed on one side of the winding displacement box 5, and the fixed connection board 501 is fixedly connected to one side of the shield case 1, so as to improve the stability of the winding displacement box 5.
As shown in fig. 1 to fig. 5, the oil-immersed transformer protective cover provided in this embodiment is used in the following steps:
s1: firstly, fixing the protective shell 1 on the upper part of the transformer through a mounting plate 8;
s2: then, the winding displacement box protective covers 502 on the winding displacement boxes 5 on the two sides of the protective shell 1 are opened, and the lead 7 penetrates into the protective shell 1 from the second winding displacement hole 504 and the first winding displacement hole 103 and is electrically connected with the conductive rod in the protective shell 1;
s3: then, the lead wires 7 are respectively bent and fixed between the ceramic strips 503 and fixed on the winding displacement box 5 by the bolt 9 winding displacement box protective cover 502;
s4: at last with the convex strip 201 joint on the protection top cap 2 in arranging recess 101 on the line box protective cover 1 can, then with refrigeration piece 3 and external power electric connection.
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to achieve the technical effect basically.
It is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of additional like elements in the article or system in which the element is included.
While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (8)

1. The oil-immersed transformer protective cover comprises a protective cover shell (1), and is characterized in that grooves (101) which are symmetrically distributed are formed in the upper end of the protective cover shell (1), a protective top cover (2) is movably connected to the upper end of the protective cover shell (1), and raised lines (201) matched with the grooves (101) in use are fixedly arranged at the bottom of the protective top cover (2);
refrigeration sheet grooves (102) which are symmetrically distributed are formed in two side faces of the protective cover shell (1), refrigeration sheets (3) are fixedly arranged inside the refrigeration sheet grooves (102), and a plurality of aluminum cooling fins (4) which are uniformly distributed are fixedly arranged on the outer side faces of the refrigeration sheets (3);
a plurality of evenly distributed first wire arranging holes (103) are symmetrically formed in the other two sides of the protective cover shell (1), a ceramic ring (10) is fixedly arranged inside the first wire arranging holes (103), a wire arranging box (5) is fixedly arranged on the first wire arranging holes (103), and a wire arranging box protective cover (502) is fixedly connected to the wire arranging box (5) through bolts (9).
2. The oil-filled transformer shield according to claim 1, wherein: the fixed mounting panel (8) that are provided with a plurality of evenly distributed in bottom of shield casing (1), the one end of mounting panel (8) with shield casing (1) fixed connection, the upper end fixed connection of the other end and the transformer of mounting panel (8).
3. The oil-filled transformer shield according to claim 1, wherein: the upper portion of protection top cap (2) is fixed and is provided with handle (6) of symmetric distribution, fixed antiskid cover (601) that is provided with on handle (6).
4. The oil-filled transformer shield according to claim 1, wherein: the refrigeration piece (3) is electrically connected with an external power supply through a wire, the heat absorption surface of the refrigeration piece (3) is in contact with the inner side surface of the protective cover shell (1), and the heat dissipation surface of the refrigeration piece (3) is fixedly connected with the aluminum heat dissipation sheet (4).
5. The oil-filled transformer shield according to claim 1, wherein: a plurality of ceramic strips (503) which are uniformly distributed are fixedly arranged on the wire arranging box (5), and a second wire arranging hole (504) matched with the first wire arranging hole (103) for use is formed between every two ceramic strips (503).
6. The oil-filled transformer shield according to claim 1, wherein: a fixed connecting plate (501) is fixedly arranged on one side face of the winding displacement box (5), and the fixed connecting plate (501) is fixedly connected with one side face of the protective cover shell (1).
7. The oil-filled transformer shield according to claim 1, wherein: insulating paint (11) is fixedly arranged inside the flat cable box protective cover (502).
8. An oil filled transformer shield according to claim 5, characterized in that: every two be provided with wire (7) between pottery strip (503), the one end of wire (7) is passed second winding displacement hole (504) and first winding displacement hole (103) and with the inside interior pole electric connection of shield casing (1).
CN202021347264.1U 2020-07-10 2020-07-10 Oil-immersed transformer protection casing Active CN212209125U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021347264.1U CN212209125U (en) 2020-07-10 2020-07-10 Oil-immersed transformer protection casing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021347264.1U CN212209125U (en) 2020-07-10 2020-07-10 Oil-immersed transformer protection casing

Publications (1)

Publication Number Publication Date
CN212209125U true CN212209125U (en) 2020-12-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021347264.1U Active CN212209125U (en) 2020-07-10 2020-07-10 Oil-immersed transformer protection casing

Country Status (1)

Country Link
CN (1) CN212209125U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116913647A (en) * 2023-06-29 2023-10-20 国网安徽省电力有限公司六安市叶集供电公司 Distribution transformer with intelligent early warning function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116913647A (en) * 2023-06-29 2023-10-20 国网安徽省电力有限公司六安市叶集供电公司 Distribution transformer with intelligent early warning function
CN116913647B (en) * 2023-06-29 2024-01-02 国网安徽省电力有限公司六安市叶集供电公司 Distribution transformer with intelligent early warning function

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