CN214672080U - All-insulation protective cover - Google Patents
All-insulation protective cover Download PDFInfo
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- CN214672080U CN214672080U CN202120066926.6U CN202120066926U CN214672080U CN 214672080 U CN214672080 U CN 214672080U CN 202120066926 U CN202120066926 U CN 202120066926U CN 214672080 U CN214672080 U CN 214672080U
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- protective cover
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- grating
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Abstract
A full-insulation protective cover comprises a protective cover main body made of insulation materials, a protective cover grating, a protective cover supporting piece and a protective cover top fastening piece, wherein the protective cover main body comprises an arc surface whole body; the protective cover grating is arranged at the central heat dissipation hole of the protective cover main body; the supporting points at the upper end of the protective cover supporting piece are distributed on the protective cover main body in a preset number of turns; the protective cover top fastener comprises a protective cover main body lap joint position fastener made of insulating materials, a protective cover support piece top fastener and a protective cover grating and protective cover main body connecting fastener. The utility model discloses full insulation protection casing is installed in the reactor top, through with the whole glass steel insulating material that adopt of protection casing main part, protection casing grid, protection casing support piece, protection casing top fastener, when realizing using the reactor in 220kV and above system, when playing rain-proof effect, effectively avoid the corona phenomenon at most advanced position such as protection casing support position.
Description
Technical Field
The utility model belongs to the technical field of the reactor function piece, a full insulation protection casing is related to.
Background
The protective cover equipped for the line reactor of 110kV and below is a common protective cover, the main structure of the protective cover is made of glass fiber reinforced plastics, and the rest parts are made of materials such as aluminum alloy and the like. Corona is easily generated on a transformer substation and a line with voltage of more than 220 kV. Because the corona discharge is accompanied by acousto-optic thermal effect generated in the processes of ionization, compounding, excitation, counter excitation and the like, the temperature of surrounding gas is increased, and the thermal stability of the element is reduced. At the same time, considerable energy losses occur. Corona, the easy emergence is most advanced, or more outstanding position, in order to effectively restrain the corona phenomenon of high voltage reactor product most advanced position, upper and lower metal end frame position assembly corona ring at the reactor usually, when the ordinary protection casing is installed additional to the reactor, because the protection casing supports for the metal support, under the electric field effect, because protection casing support position radius of curvature is little, the electric field is extremely inhomogeneous, also very easily take place the ionization, consequently, need install corona ball or shielding rod additional along supporting the top outside ordinary protection casing equally, change local electric field distribution, reduce electric field intensity, make electric field intensity be less than the initial field intensity of air corona, prevent corona discharge.
A corona ball or shielding rod device is additionally arranged at the top of the protective cover, so that the manufacturing process is complex; the corona ball and the shielding rod are hollow devices, and the surfaces of the corona ball and the shielding rod are smooth when the corona ball and the shielding rod are used, so that the requirements on transportation conditions and installation processes are strict, the working difficulty is increased, and the overall manufacturing cost is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model aims to provide a full-insulation protective cover, when the reactor used in 220kV and above system, busbar and support position increased corona ring or shielding rod about the reactor, through the emulation calculation, the whole electric field intensity of reactor reduced, was far less than the originated field intensity of air corona, can not produce the corona. When the reactor is additionally provided with the common protective cover, the protective cover is supported by metal, the curvature radius of the supporting position of the protective cover is small, and the electric field is extremely uneven, so that a corona ball or a shielding rod is additionally arranged on the top end of the outer edge support of the common protective cover to prevent corona discharge.
Because the corona ball or the shielding rod device is additionally arranged at the top of the common protective cover, the manufacturing process is complex, the requirements on transportation conditions and installation process are strict, the working difficulty is high, and the overall manufacturing cost is high. Therefore, the fully-insulated protective cover is adopted to replace the common protective cover. The fully-insulated protective cover is free of metal parts and placed in an electric field without changing the distribution of the electric field, so that devices such as corona balls or shielding rods do not need to be additionally arranged above the fully-insulated protective cover.
The full-insulation protective cover is arranged at the top of the reactor to replace a common protective cover additionally provided with an anti-corona device, so that the corona phenomenon of tip parts such as the supporting position of the protective cover is effectively avoided while the rainproof effect is achieved.
Compared with the common protective cover additionally provided with the corona-proof device, the full-insulation protective cover reduces corona balls or shielding rods, and has the advantages of simple manufacturing process, time saving, low requirement on transportation conditions, small installation difficulty and low manufacturing cost.
The utility model adopts the following technical proposal:
a full-insulation protective cover comprises a protective cover main body made of insulation materials, a protective cover grating, a protective cover supporting piece and a protective cover top fastening piece,
the protective cover main body comprises an arc surface whole body;
the protective cover grating is arranged on the central heat dissipation hole of the protective cover main body;
the supporting points at the upper end of the protective cover supporting piece are distributed on the protective cover main body in a preset number of turns;
the protective cover top fastener comprises a protective cover main body lap joint position fastener made of insulating materials, a protective cover support piece top fastener and a protective cover grating and protective cover main body connecting fastener.
The protective cover main part comprises a preset number of arc surfaces.
The supporting points of the protective cover supporting piece are distributed on the protective cover main body in an equal interval mode or in an unequal interval mode according to the preset number of circles.
The protection casing grid is circular, and its size cooperatees with protection casing main part center trompil.
The lower end of the protective cover supporting piece is connected with a bus bar on the upper portion of the reactor.
The protective cover supporting piece is connected with the hanger frame on the reactor through a fastening piece.
The protective cover main body comprises lap joints, and the lap joint quantity is determined according to the protective cover setting requirement.
Compared with the prior art, the beneficial effects of the utility model reside in that:
under the same effect of inhibiting corona discharge, the full-insulation protective cover is adopted, so that the manufacturing process is simple, time is saved, the requirement on transportation conditions is low, the installation difficulty is low, and the manufacturing cost is low.
Drawings
Fig. 1 is a schematic side view of a three-dimensional structure of an all-insulated protective cover according to the present invention;
fig. 2 is a schematic top view of a three-dimensional structure of an all-insulated protective cover according to the present invention;
fig. 3 is a schematic side view of a three-dimensional structure of an all-insulated protective cover according to an embodiment of the present invention;
fig. 4 is a schematic top view of a three-dimensional structure of an all-insulated shield according to an embodiment of the present invention,
in the figure, 1 is a protective cover main body; 2 is a protective cover grating; 3 is a shield support; and 4, a protective cover top fastening piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the drawings in the embodiments of the present invention will be combined below to clearly and completely describe the technical solutions of the present invention. The embodiments described herein are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art without creative efforts will fall within the protection scope of the present invention based on the spirit of the present invention.
As shown in fig. 1 and 2, a schematic view of a three-dimensional structure of a fully insulated protective cover according to the present invention is provided;
as shown in fig. 3 and 4, a three-dimensional structure schematic diagram of an all-insulated protective cover provided by an embodiment of the present invention is shown;
referring to fig. 3, the embodiment of the present invention provides an all-insulated protective cover: the protective cover main body 1 is formed by two parts into a circular arc surface whole; the central radiating hole of the protective cover main body is provided with a protective cover grating 2; the protective cover supporting pieces 3 are distributed on the protective cover main body 1 in two circles, the outer circle is divided into 6 equal parts, and the inner circle is divided into 3 equal parts; the all-insulated protective cover comprises a protective cover main body 1 made of glass fiber reinforced plastic, a protective cover grating 2, a protective cover supporting piece 3 and a protective cover top fastening piece 4, wherein the protective cover top fastening piece 4 comprises a protective cover main body lap joint position fastening piece, a protective cover supporting piece top fastening piece, a protective cover grating and a protective cover main body connecting fastening piece.
The shield main body 1 includes a predetermined number of arc surfaces.
The support points of the shield support 3 are distributed with a predetermined number of circles on the shield body 1 at equal or unequal intervals.
The protective cover grating 2 is circular and the size of the protective cover grating is matched with the central hole of the protective cover main body 1.
The lower end of the shield support 3 is connected to the reactor upper bus bar.
The shield top fastener 4 comprises a shield body lap joint position fastener, a shield support member top fastener and a shield grid and shield body connection fastener which are made of glass fiber reinforced plastic insulating materials.
The protective cover supporting piece 3 is connected with the hanger on the reactor by a fastener.
Preferably, the size of the ventilation and heat dissipation hole in the center of the protective cover main body, the size of the arc surface and the size of the whole protective cover main body are determined according to the overall dimension of the reactor and the heat dissipation requirement of the reactor.
Preferably, whether the shield body needs to be lapped and the number of laps of the shield body are determined according to the overall size of the shield and the transportation requirements.
Preferably, the fastening piece for connecting the protective cover supporting piece and the hanger on the reactor needs to meet the design requirement of the reactor main body.
The utility model discloses obtaining under the same suppression corona discharge effect, adopting the all insulation protection casing, the manufacturing process is simple, save time, the transportation condition requires lowly, the installation degree of difficulty is little, and the cost of manufacture is low.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents of the embodiments of the invention may be made without departing from the spirit and scope of the invention, which should be construed as falling within the scope of the claims of the invention.
Claims (7)
1. A full-insulation protective cover comprises a protective cover main body (1) made of insulation materials, a protective cover grating (2), a protective cover supporting piece (3) and a protective cover top fastening piece (4),
the protective cover main body (1) comprises an arc surface whole body;
the central heat dissipation hole of the protective cover main body (1) is provided with a protective cover grating (2);
the supporting points at the upper end of the protective cover supporting piece (3) present preset circle number distribution on the protective cover main body (1);
the protective cover top fastening piece (4) comprises a protective cover main body lap joint position fastening piece made of insulating materials, a protective cover support piece top fastening piece and a protective cover grating and protective cover main body connecting fastening piece.
2. The all-insulating shield according to claim 1,
the protective cover main body (1) comprises a preset number of arc surfaces.
3. The all-insulating shield according to claim 1,
the supporting points of the protective cover supporting piece (3) are distributed on the protective cover main body (1) in a preset number of circles at equal intervals or at unequal intervals.
4. The all-insulating shield according to claim 1,
the protective cover grating (2) is circular, and the size of the protective cover grating is matched with the central hole of the protective cover main body (1).
5. The all-insulating shield according to claim 1,
the lower end of the protective cover supporting piece (3) is connected with a bus bar at the upper part of the reactor.
6. The all-insulating shield according to claim 1,
the protective cover supporting piece (3) is connected with the hanger on the reactor through a fastener.
7. The all-insulating shield according to claim 1,
the protective cover main body (1) comprises lap joints, and the lap joint quantity is determined according to the protective cover setting requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120066926.6U CN214672080U (en) | 2021-01-11 | 2021-01-11 | All-insulation protective cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120066926.6U CN214672080U (en) | 2021-01-11 | 2021-01-11 | All-insulation protective cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214672080U true CN214672080U (en) | 2021-11-09 |
Family
ID=78514996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120066926.6U Active CN214672080U (en) | 2021-01-11 | 2021-01-11 | All-insulation protective cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214672080U (en) |
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2021
- 2021-01-11 CN CN202120066926.6U patent/CN214672080U/en active Active
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