CN210006544U - composite casing metal oxide lightning arrester - Google Patents
composite casing metal oxide lightning arrester Download PDFInfo
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- CN210006544U CN210006544U CN201920388164.4U CN201920388164U CN210006544U CN 210006544 U CN210006544 U CN 210006544U CN 201920388164 U CN201920388164 U CN 201920388164U CN 210006544 U CN210006544 U CN 210006544U
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- metal oxide
- disconnector
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Abstract
The utility model relates to an electric power system arrester technical field discloses kind composite coat metal oxide arrester, including arrester body, composite coat, disconnector and connecting piece, arrester body holding is in composite coat, the arrester body is including the resistance card of range upon range of connection in proper order, electrode, insulating base and second electrode, the end of connecting piece passes composite coat and is connected with electrode, the disconnector includes disconnector body, high-pressure connecting bolt, low pressure connecting bolt and earth conductor, end of disconnector body is connected with earth conductor through low pressure connecting bolt, the other end of disconnector body is connected through high-pressure connecting bolt and end of connecting piece in addition, the utility model discloses a composite coat metal oxide arrester need not to install the disconnector through insulating support, has avoided insulating support's design effectively, just the utility model discloses a composite coat metal oxide arrester's simple structure, easily installation has consequently reduced the cost of arrester.
Description
Technical Field
The utility model relates to an electric power system arrester technical field especially relates to kind of composite coat metal oxide arresters.
Background
With the development of social economy and the improvement of the quality of life of people, the development scale of an electric power system is larger and larger, the structure of the electric power system is more and more complex, and the line distribution of the electric power system becomes , so that the electric power system is easy to be struck by lightning, and higher lightning overvoltage or operation overvoltage can be generated when faults such as single-phase grounding or non-full-phase operation occur, so that people put forward higher requirements on the reliability and the quality of the electric power system.
The surge arrester is generally used in power systems as a kind of appliances for protecting electrical equipment from high transient overvoltage and limiting the amplitude of follow current, and is used in power systems as to protect communication lines and equipment.
At present, the disconnector is usually installed on the arrester by adopting an insulating bracket specially used for , and when the disconnector acts, the insulating bracket plays a role of insulating and supporting the arrester, so that the requirement on the insulating bracket in the arrester is higher, the insulating bracket is required to have the capability of bearing the temporary overvoltage of the system, have higher mechanical strength and weather resistance and meet the requirement on the creepage distance determined by , and the structure of the arrester is complex and the installation difficulty is high, thereby leading to high cost of the arrester.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing kind composite sheath metal oxide arresters, its simple structure and easily installation to the cost of arrester has been reduced.
In order to solve the technical problem, the utility model provides an kinds of composite jacket metal oxide lightning arrester, which comprises a lightning arrester body, a composite jacket, a disconnector and a connecting piece, wherein the lightning arrester body is accommodated in the composite jacket;
the lightning arrester body comprises a resistor disc, an th electrode, an insulating base and a second electrode which are sequentially connected in a stacked mode, and the end of the connecting piece penetrates through the composite outer sleeve and is connected with the th electrode;
the disconnector comprises a disconnector body, a high-voltage connecting bolt, a low-voltage connecting bolt and a ground lead, wherein the end of the disconnector body is connected with the ground lead through the low-voltage connecting bolt, and the other end of the disconnector body is connected with the other end of the connecting piece through the high-voltage connecting bolt.
Preferably, a side of the th electrode close to the composite casing is provided with a th mounting hole, and the end of the connecting piece penetrates through the composite casing and is connected in the th mounting hole.
Preferably, the connecting piece is a bolt.
Preferably, the composite casing metal oxide arrester further comprises a winding layer arranged between the composite casing and the arrester body, and the winding layer wraps the arrester body.
Preferably, the wrapping layer is formed by impregnating glass fibers with epoxy resin.
Preferably, the composite outer sleeve metal oxide lightning arrester further comprises an th fastening piece and a second fastening piece, wherein the th fastening piece sequentially penetrates through the composite outer sleeve and the winding layer and is connected with the resistor disc, and the second fastening piece sequentially penetrates through the composite outer sleeve and the winding layer and is connected with the second electrode.
Preferably, the th fastener is a bolt.
Preferably, the second fastening member is a bolt.
Preferably, the outer surface of the composite coat is provided with an umbrella skirt.
The utility model provides a kind of composite cover metal oxide arrester, including arrester body, composite cover, disconnector and connecting piece, the arrester body holds in the composite cover, the arrester body includes resistance card, the electrode, insulator foot and the second electrode that stacks gradually the connection, the end of connecting piece passes the composite cover and with electrode connection, the disconnector includes disconnector body, high-voltage connecting bolt, low pressure connecting bolt and earth conductor, the end of disconnector body passes through the low pressure connecting bolt with the earth conductor is connected, the other end of disconnector body passes through the high pressure connecting bolt with the other end of connecting piece is connected, through setting up the connecting piece, and make the end of connecting piece pass the composite cover and with the electrode is connected, make the other end of connecting piece connect with the disconnector simultaneously, thereby realize the connection of arrester body with the disconnector, make need not to break away from the installer through insulating support, avoided the design of insulating support effectively, and the composite cover metal oxide arrester is simple mounting structure, consequently the installation cost is easily reduced.
Drawings
Fig. 1 is a schematic structural diagram of a composite coated metal oxide arrester according to an embodiment of the present invention.
The lightning arrester comprises a lightning arrester body, a resistor disc, a th electrode, an insulating base, a 14 th electrode, a composite outer sleeve, a 21 th umbrella skirt, a detacher body, a 32 th grounding lead, a 33 th high-voltage connecting bolt, a 34 th low-voltage connecting bolt, a 4 th connecting piece, a 5 th winding layer, a 6 th fastening piece, and a 7 th fastening piece.
Detailed Description
The following detailed description is made in conjunction with the accompanying drawings and examples, which are provided to illustrate the present invention and are not intended to limit the scope of the invention.
The utility model discloses an in the explanation, the description in upper and lower, left and right, preceding, back, top and bottom equidirectional position all is injectd to figure 1, works as when the placing means of composite sheath metal oxide arrester changes, the description in its corresponding position will also change according to the change of placing means, the utility model discloses do not describe here in detail.
As shown in fig. 1, the composite-sheathed metal oxide lightning arrester according to the preferred embodiment of the invention comprises a lightning arrester body 1, a composite sheath 2, a disconnector 3 and a connecting piece 4, wherein the lightning arrester body 1 is accommodated in the composite sheath 2;
the arrester body 1 comprises a resistance card 11, an th electrode 12, an insulating base 13 and a second electrode 14 which are sequentially connected in a laminated manner, wherein the end of the connecting piece 4 penetrates through the composite outer sleeve 2 and is connected with the th electrode 12;
the disconnector 3 includes a disconnector body 31, a high-voltage connecting bolt 33, a low-voltage connecting bolt 34, and a ground wire 32, wherein an end of the disconnector body 31 is connected to the ground wire 32 by the low-voltage connecting bolt 34, and another end of the disconnector body 31 is connected to another end of the connecting member 4 by the high-voltage connecting bolt 33.
In the embodiment of the utility model, through setting up connecting piece 4, and make end of connecting piece 4 passes compound overcoat 2 and with electrode 12 is connected, makes simultaneously connecting piece 4 another end with disconnector 3 is connected, thereby realizes arrester body 1 with disconnector 3's connection for need not to install the disconnector through insulating bracket, avoided insulating bracket's design effectively, just compound overcoat metal oxide arrester's simple structure, easily installation has consequently reduced the cost of arrester.
In addition, through the cooperation of the resistance chip 11, the th electrode 12, the connecting element 4 and the disconnector 3, the abnormal current in the power system can be discharged into the ground, thereby protecting other devices in the power system, specifically, the abnormal current flowing through the disconnector 3 can be discharged into the ground through the grounding lead 32, and the disconnector 3 has a tolerance capability to ensure the normal operation of the composite coated metal oxide arrester, and the insulating base 13 is provided to isolate the resistance chip 11, the th electrode 12, the connecting element 4 and the disconnector 3, thereby ensuring the insulation of the composite coated metal oxide arrester when the composite coated metal oxide arrester is installed in the power system.
In the embodiment of the present invention, in order to securely connect the end of the connecting element 4 to the th electrode 12, in this embodiment, the 1 side of the 0 th electrode 12 close to the composite sheath 2 is provided with a 2 th mounting hole, and the end of the connecting element 4 passes through the composite sheath 2 and is connected to the th mounting hole, the th electrode 12 is provided with the th mounting hole, and the end of the connecting element 4 passes through the composite sheath 2 and is connected to the th mounting hole, so that the end of the connecting element 4 is connected to the th electrode 12.
In the embodiment of the present invention, the type of the connecting member 4 can be set according to the actual use requirement, and it is only necessary to satisfy the requirement of ensuring that the th electrode 12 and the electrical connection between the disconnector 3 can be realized by the connecting member 4.
In the embodiment of the present invention, in order to strengthen the mechanical strength of the composite coated metal oxide arrester, in this embodiment, the composite coated metal oxide arrester is further comprised by locating the composite coated 2 and the winding layer 5 between the arrester bodies 1, the winding layer 5 wraps the arrester bodies 1. through setting up, the winding layer 5 wraps the arrester bodies 1, when the sealing effect is achieved, the mechanical strength of the composite coated metal oxide arrester is enhanced by playing the role of bearing mechanical force, and besides, it is required to explain that, because the winding layer 5 is located between the composite coated 2 and the arrester bodies 1, therefore, the end of the connecting member 4 sequentially passes through the composite coated 1 and the winding layer 5, and then extends into the mounting hole, and is connected with the mounting hole.
In the embodiment of the present invention, the forming manner of the winding layer 5 can be set according to the actual use requirement. In order to ensure that the mechanical strength of the composite cased metal oxide arrester can be improved while simplifying the design and structure to reduce the cost, the winding layer 5 in this embodiment is formed of epoxy resin impregnated glass fiber.
As shown in FIG. 1, in order to facilitate the application of the composite sheath metal oxide arrester in an electric power system, the composite sheath metal oxide arrester in this embodiment further comprises th fastening members 6 and 7 st fastening members 7, wherein the th fastening members 6 sequentially penetrate through the composite sheath and 1 the wrapping layer 5 and are connected with the resistive sheet 11, and the second fastening members 7 sequentially penetrate through the composite sheath 1 and the wrapping layer 5 and are connected with the second electrode 14. by arranging the th fastening members 6, the th fastening members 6 sequentially penetrate through the composite sheath and 1 the wrapping layer 5 and are connected with the resistive sheet 11, so that the composite sheath metal oxide arrester is connected with the outside through the th fastening members 6, so that abnormal current is discharged to the ground under the cooperation of the th fastening members 6, the resistive sheet 11, the th electrode 12 and the disconnector 3, and by arranging the second fastening members 7 and sequentially penetrate through the composite sheath 1 and the wrapping layer 5 and are connected with the second electrode 14, so that the composite sheath metal oxide arrester is easily applied to the electric power system.
In the embodiment of the present invention, in order to achieve the firm connection between the th fastening member 6 and the resistor disc 11, the top of the resistor disc 11 is provided with a second mounting hole in the present embodiment, and the th fastening member 6 sequentially passes through the composite outer sleeve and 1, the winding layer 5, and then extends into the second mounting hole, and is connected to the second mounting hole, so as to achieve the firm connection between the th fastening member 6 and the resistor disc 11.
In the embodiment of the present invention, the th fastening member 6 and the second fastening member 7 can be arranged according to actual use conditions, and only the requirement of ensuring that the composite coated metal oxide arrester can be connected to an external device through the th fastening member 6 and the second fastening member 7 is satisfied, in order to further , the design and the structure are simplified, so as to reduce the cost, in the embodiment, the th fastening member 6 is a bolt, and/or the second fastening member 7 is a bolt.
In the embodiment of the present invention, in order to improve the overall insulating property of the composite sheath metal oxide arrester, in the embodiment, the outer surface of the composite sheath 2 is provided with the umbrella skirt 21. By arranging the umbrella skirt 21 on the outer surface of the composite outer sleeve 2, under the matching of the composite outer sleeve 2 and the umbrella skirt 21, the external insulation of the composite outer sleeve metal oxide lightning arrester can be enhanced, the creepage distance is increased, the anti-pollution flashover capability is improved, and the overall insulation performance of the composite outer sleeve metal oxide lightning arrester is improved; in addition, the composite coat 2 and the umbrella skirt 21 are matched to have a secondary sealing effect.
The embodiment of the utility model provides an in, the working process of compound overcoat metal oxide arrester specifically is:
when abnormal voltage occurs in the power system, the composite sheathed metal oxide arrester immediately acts, abnormal current sequentially passes through the fastening piece 6, the resistance card 11, the electrode 12 and the disconnector 3, and finally abnormal current is discharged to the ground through the grounding wire 32 of the disconnector 3, so that other devices in the power system are protected.
To sum up, the present invention provides composite sheath metal oxide lightning arrester, including a lightning arrester body 1, a composite sheath 2, a disconnector 3 and a connecting member 4, wherein the lightning arrester body 1 is accommodated in the composite sheath 2, the lightning arrester body 1 includes a resistor disc 11, a th electrode 12, an insulating base 13 and a second electrode 14 which are sequentially connected in a stacked manner, a end of the connecting member 4 passes through the composite sheath 2 and is connected with the th electrode 12, the disconnector 3 includes a disconnector body 31, a high-voltage connecting bolt 33, a low-voltage connecting bolt 34 and a ground wire 32, a end of the disconnector body 31 is connected with the ground wire 32 through the low-voltage connecting bolt 34, and another end of the disconnector body 31 is connected with another end of the connecting member 4 through the high-voltage connecting bolt 33, the connecting member 4 is provided and a end of the connecting member 4 passes through the composite sheath 2 and is connected with the th electrode 12, and another end of the connecting member 4 is disconnected from the disconnector 3, thereby realizing the disconnection of the lightning arrester from the composite sheath 3, and effectively reducing the installation cost of the lightning arrester without requiring a simple insulator mounting structure.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (9)
- The composite-casing metal oxide arrester is characterized by comprising an arrester body, a composite casing, a disconnector and a connecting piece, wherein the arrester body is accommodated in the composite casing;the lightning arrester body comprises a resistor disc, an th electrode, an insulating base and a second electrode which are sequentially connected in a stacked mode, and the end of the connecting piece penetrates through the composite outer sleeve and is connected with the th electrode;the disconnector comprises a disconnector body, a high-voltage connecting bolt, a low-voltage connecting bolt and a ground lead, wherein the end of the disconnector body is connected with the ground lead through the low-voltage connecting bolt, and the other end of the disconnector body is connected with the other end of the connecting piece through the high-voltage connecting bolt.
- 2. The composite encased metal oxide arrester of claim 1 wherein said electrode has a th mounting hole adjacent the side of said composite casing, and wherein the end of said connector extends through said composite casing and is connected within said th mounting hole.
- 3. A composite cased metal oxide arrester according to claim 1 or 2, wherein said connecting member is a bolt.
- 4. The composite encased metal oxide arrester of claim 1 or 2 further comprising a wrapping layer disposed between the composite casing and the arrester body, the wrapping layer wrapping the arrester body.
- 5. The composite cased metal oxide arrester of claim 4, wherein said wrapped layer is formed of epoxy impregnated fiberglass.
- 6. The composite encased metal oxide arrester of claim 4 further comprising th fasteners and second fasteners, said th fasteners passing through said composite encasing and said wrapping in sequence and being connected to said resistor disc, said second fasteners passing through said composite encasing and said wrapping in sequence and being connected to said second electrode.
- 7. The composite encased metal oxide arrester of claim 6 wherein said th fastener is a bolt.
- 8. The composite cased metal oxide arrester of claim 6, wherein said second fastener is a bolt.
- 9. A composite-sheathed metal oxide lightning arrester according to claim 1 or 2, characterized in that the outer surface of the composite sheath is provided with a shed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920388164.4U CN210006544U (en) | 2019-03-25 | 2019-03-25 | composite casing metal oxide lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920388164.4U CN210006544U (en) | 2019-03-25 | 2019-03-25 | composite casing metal oxide lightning arrester |
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| CN210006544U true CN210006544U (en) | 2020-01-31 |
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| CN201920388164.4U Active CN210006544U (en) | 2019-03-25 | 2019-03-25 | composite casing metal oxide lightning arrester |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110033909A (en) * | 2019-03-25 | 2019-07-19 | 南方电网科学研究院有限责任公司 | A kind of arrester |
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2019
- 2019-03-25 CN CN201920388164.4U patent/CN210006544U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110033909A (en) * | 2019-03-25 | 2019-07-19 | 南方电网科学研究院有限责任公司 | A kind of arrester |
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