CN201141870Y - High-voltage suspension insulator leakage current collecting snap ring - Google Patents
High-voltage suspension insulator leakage current collecting snap ring Download PDFInfo
- Publication number
- CN201141870Y CN201141870Y CNU2007201260162U CN200720126016U CN201141870Y CN 201141870 Y CN201141870 Y CN 201141870Y CN U2007201260162 U CNU2007201260162 U CN U2007201260162U CN 200720126016 U CN200720126016 U CN 200720126016U CN 201141870 Y CN201141870 Y CN 201141870Y
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- Prior art keywords
- clasp
- snap ring
- ring
- leakage current
- insulator
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Abstract
The utility model discloses a leakage current acquisition clasp for high voltage suspension insulator, which is composed of two semicircle clasp body. One end of the two semicircle clasp body is a hinge connection; the other end is a stud connection; a coattail trough encircling the whole clasp is arranged at the bottom part of the clasp; a choke coil is embedded in the coattail trough; a connector is also arranged at the outer side of the clasp body; the choke coil is connected with the connector through wires. The clasp of the utility model does not reduce the insulation configuration of the system, increases the anti-interference ability of the acquisition system with high intercepting efficiency; meanwhile, the installation is convenient and the structure is simple.
Description
Technical field
The utility model belongs to technical field of electrical equipment, relates to a kind of leakage current collection snap ring, is applied to collect high voltage suspended insulator surface filth leakage current in the filthy monitoring system of high voltage suspended insulator.
Background technology
Insulator contamination has become one of key factor that influences the electric power system reliability, and in order to avoid the generation of insulator contamination as far as possible, the filthy situation of precise real-time detection high pressure insulator surface is most important.Detection method commonly used at present has equivalent salt deposit density method, pollution layer conductivity method, flashover standard-field strength method and leakage current method.Wherein the electric characteristic amount of leakage current is the result of filth, voltage and environmental factor (environment temperature, humidity etc.) combined action, it is dynamic parameter, suitable on-line monitoring, therefore insulator contamination on-line monitoring system is evaluated the insulator surface pollution level by leakage current and environmental parameter that real time on-line monitoring flows through insulator surface, so that before filth runs up to hazard level, provide warning message, remind the Operation of Electric Systems maintainer in time to take the cleaning measure, for electric system is laid the foundation by the transformation of scheduled overhaul to repair based on condition of component.
In order to finish this task, the ring that dams that is used for collecting the leakage current that flows through the insulator surface pollution layer becomes the visual plant of contamination on-line monitoring system.At present, for the ring that dams that the column support type insulator uses, employing be stainless steel band, at the steel band punching two ends, with metallic screw two ends are strained then, the ground connection side that is fixed on insulator gets final product; For high voltage suspended insulator, prior art all is the ball-eye place that the leakage current mutual inductor is placed on last a slice insulator steel cap top, or extracts signal between the 2nd insulator reciprocal and last a slice insulator, and all there is following problem in these technology:
1) owing to adopt the ring-like current transformer of core-theaded type, can't accomplish that mutual inductor shields fully, aspect anti-interference, be difficult to reach requirement.
2) when current transformer is installed, bunch of insulator be taken off again and install, need to have a power failure, labour intensity is very big, and it is very inconvenient to install, and is unfavorable for promoting.
3) be equivalent to 1 insulator of short circuit from extracting signal between the 2nd insulator reciprocal and the last a slice insulator, will influence the line security operation.
Summary of the invention
The purpose of this utility model is to provide a kind of high voltage suspended insulator leakage current collection snap ring, this snap ring can not only effectively extract leakage current and the characteristic quantity thereof that flows through the insulator chain surface of getting dirty, and improved the antijamming capability of acquisition system, easy for installation, do not reduce the insulation configuration of system.
The technical scheme that the utility model adopted is, high voltage suspended insulator leakage current collection snap ring, form by two semicircle body of clasp, one end of two semicircle body of clasp is that hinge connects, the other end is that double-screw bolt connects, and the bottom part ring of body of clasp has dovetail groove around snap ring integral body, and dovetail groove is embedded in the ring that dams, the outside of body of clasp also is provided with connector, and the ring that dams is connected with connector by lead.
Characteristics of the present utility model also are,
The inclined-plane of 174 degree chamferings is arranged in the bottom surface of body of clasp.
The side of body of clasp evenly has 4 threaded holes.
Body of clasp adopts the insulated nylon material.
The ring that dams adopts the silver-plated wire netting of cylinder type hollow, and the hollow parts of wire netting is filled with high temperature resistant rubber band.
Insulator leakage current of the present utility model is gathered snap ring, need not to have a power failure to install, and does not influence circuit and normally moves.Under the situation that does not reduce tested insulator chain insulation configuration, will flow through the leakage current signal that stains the insulator chain surface and effectively intercept, intercepting efficient is higher than 95%, and is easy for installation, with low cost, simple in structure.
Description of drawings
Fig. 1 is a plan structure synoptic diagram of the present utility model;
Fig. 2 is the structural representation of looking up of the present utility model;
Fig. 3 is the C-C cut-open view of Fig. 1;
Fig. 4 is the A-A cut-open view of Fig. 1;
Fig. 5 is the B-B cut-open view of Fig. 1;
Fig. 6 is the partial enlarged drawing of dovetail groove in the utility model.
Among the figure, 1. attachment screw, 2. body of clasp, the 3. solid screw in top, 4. hinge attachment screw, 5. dovetail groove, ring, 7. connector 6. dam.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
The structure of snap ring of the present utility model as shown in Figure 1, form by two semicircle nylon body of clasp 1, be connected through the hinge screw 4 of an end adopts hinges to connect between two semicircle nylon body of clasp 1, as shown in Figure 3, the other end adopts double-screw bolt to connect by attachment screw 1, so that during on-the-spot the installation, do not need to take off insulator chain, just snap ring can easily be put insulator chain.The side of body of clasp 1 evenly has 4 threaded holes, utilizes the solid screw 3 in top to withstand insulator cap, thereby snap ring is fixed on the insulator upper surface.
The design of the lower surface of body of clasp 1 has 174 degree chamferings as shown in Figure 4, so that it closely contacts with the insulator upper surface with certain radian, thereby holds out against and the ring that fixedly dams.With reference to Fig. 2, the bottom part ring of body of clasp 1 has dovetail groove 5 around snap ring integral body, the structure of dovetail groove 5 such as Fig. 5, shown in Figure 6.Dovetail groove 5 is embedded in the ring 6 that dams, and the ring 6 that dams adopts the silver-plated wire netting of cylinder type hollow, and the hollow parts of wire netting is filled high temperature resistant rubber band.Wire netting one side snaps in the dovetail groove 5 of snap ring, and opposite side presses closer the surface at insulator, and the leakage current that flows through the insulator chain surface like this can be dammed to encircle to be collected.The purpose that is designed to dovetail groove is that the ring that dams in order to guarantee snap ring is installed does not come off.
The outside of body of clasp 1 also is provided with connector 7, radially opens a sulculus at the lower surface of body of clasp 1, utilizes silver-jacketed wire to be led to connector 7 by the leakage current that the ring that dams is collected, and connector 7 is gold-plated single needle screw thread type.Lead is single core fire resistant shielded cable, and the one end links to each other with connector, and the other end links to each other with the leakage current collection system by aviation plug, thereby realizes the extraction of bunch of insulator leakage current.
The utility model has the advantage of:
1. snap ring adopts the insulated nylon material that insulator and electric conductor are effectively isolated;
2. two of snap ring semicircle one ends adopt chain connection, can guarantee that snap ring is installed in insulator smoothly On the string, guaranteed that again shutoff ring is not pulled off;
3. the form of the fixedly employing dovetail groove of shutoff ring in snap ring has guaranteed shutoff ring in the installation process Can not drop out snap ring.
Claims (5)
1. high voltage suspended insulator leakage current collection snap ring, it is characterized in that, this snap ring is made up of two semicircle body of clasp (1), one end of two semicircle body of clasp (1) is that hinge connects, the other end is that double-screw bolt connects, and the bottom part ring of described body of clasp (1) has dovetail groove (5) around snap ring integral body, and dovetail groove (5) is embedded in the ring (6) that dams, the outside of body of clasp (1) also is provided with connector (7), and the described ring (6) that dams is connected with connector (7) by lead.
2. according to the described snap ring of claim 1, it is characterized in that the inclined-plane of 174 degree chamferings is arranged in the bottom surface of described body of clasp (1).
3. according to the described snap ring of claim 1, it is characterized in that the side of described body of clasp (1) evenly has 4 threaded holes.
4. according to claim 1,2,3 described snap rings, it is characterized in that described body of clasp (1) adopts the insulated nylon material.
5. according to the described snap ring of claim 1, it is characterized in that the described ring (6) that dams adopts the silver-plated wire netting of cylinder type hollow, the hollow parts of wire netting is filled with high temperature resistant rubber band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201260162U CN201141870Y (en) | 2007-11-27 | 2007-11-27 | High-voltage suspension insulator leakage current collecting snap ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201260162U CN201141870Y (en) | 2007-11-27 | 2007-11-27 | High-voltage suspension insulator leakage current collecting snap ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201141870Y true CN201141870Y (en) | 2008-10-29 |
Family
ID=40069581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201260162U Expired - Lifetime CN201141870Y (en) | 2007-11-27 | 2007-11-27 | High-voltage suspension insulator leakage current collecting snap ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201141870Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435812A (en) * | 2011-09-22 | 2012-05-02 | 广东电网公司深圳供电局 | Insulator leakage current collecting ring and insulator leakage current collecting device |
| CN101419263B (en) * | 2008-12-11 | 2013-08-28 | 嘉兴市大桥电力电器厂 | Insulation property on-line monitoring instrument for composite insulator of powerline |
| CN104006849A (en) * | 2014-06-06 | 2014-08-27 | 盈亨科技(上海)有限公司 | On-line monitoring device for overhead high-voltage line |
| CN107703412A (en) * | 2017-10-31 | 2018-02-16 | 成都汉度科技有限公司 | The power distribution network test equipment of Fast Installation |
| CN114388202A (en) * | 2021-12-09 | 2022-04-22 | 江苏南瑞帕威尔电气有限公司 | Drainage ring with self-locking function |
-
2007
- 2007-11-27 CN CNU2007201260162U patent/CN201141870Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101419263B (en) * | 2008-12-11 | 2013-08-28 | 嘉兴市大桥电力电器厂 | Insulation property on-line monitoring instrument for composite insulator of powerline |
| CN102435812A (en) * | 2011-09-22 | 2012-05-02 | 广东电网公司深圳供电局 | Insulator leakage current collecting ring and insulator leakage current collecting device |
| CN102435812B (en) * | 2011-09-22 | 2014-09-03 | 广东电网公司深圳供电局 | Insulator leakage current collecting ring and insulator leakage current collecting device |
| CN104006849A (en) * | 2014-06-06 | 2014-08-27 | 盈亨科技(上海)有限公司 | On-line monitoring device for overhead high-voltage line |
| CN107703412A (en) * | 2017-10-31 | 2018-02-16 | 成都汉度科技有限公司 | The power distribution network test equipment of Fast Installation |
| CN114388202A (en) * | 2021-12-09 | 2022-04-22 | 江苏南瑞帕威尔电气有限公司 | Drainage ring with self-locking function |
| CN114388202B (en) * | 2021-12-09 | 2024-01-23 | 江苏南瑞帕威尔电气有限公司 | Drainage ring with self-locking function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081029 |