CN204314342U - Transformer online monitoring end shield of high-voltage bushing adapter - Google Patents
Transformer online monitoring end shield of high-voltage bushing adapter Download PDFInfo
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- CN204314342U CN204314342U CN201420865109.7U CN201420865109U CN204314342U CN 204314342 U CN204314342 U CN 204314342U CN 201420865109 U CN201420865109 U CN 201420865109U CN 204314342 U CN204314342 U CN 204314342U
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- web member
- end shield
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- transformer
- survey sensor
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Abstract
The utility model relates to transformer online monitoring end shield of high-voltage bushing adapter, adopt survey sensor and end shield converter, survey sensor is contained in aluminum alloy casing, combined by web member end shield converter and survey sensor, can dismantle, web member comprises 1# web member and 2# web member; End shield converter is made up of aluminium alloy urceolus, lining, 1# web member, retainer plate and nut, lining is contained in aluminium alloy urceolus, 1# web member is contained in lining, retainer plate 4 is sleeved on 1# web member, screw thread on retainer plate 4 is connected with the internal thread of aluminium alloy urceolus 1, and 1# web member is fixed at retainer plate 4 opposite side nut.Survey sensor is sleeved on 2# web member, and the 2# web member being set with survey sensor is fixed by nut and aluminum alloy casing; Aluminum alloy casing is provided with leading-out end, the extension line of survey sensor and leading-out end accessory.Its advantage is, novel in design, rational in infrastructure, easy for installation, uses reliable.
Description
Technical field
The utility model relates to adapter, particularly transformer online monitoring end shield of high-voltage bushing adapter, and it is applicable to the on-line monitoring of transformer.
Background technology
The data statistics of a large amount of fault shows, in transformer fault, insulation fault occupies higher proportion.Applicant finds under study for action, the insulation ag(e)ing that the shelf depreciation that the reason causing transformer to produce insulation fault mainly insulate weakness causes and inefficacy, and finally causes the insulation breakdown of transformer.Because Partial Discharge Detection can reflect the insulation status of transformer in advance, the insulation defect of inside transformer can be found, thus the accident of the latency that transformer can be prevented to exist and the generation of paroxysmal accident.
According to the knowledge of the applicant, at present, State Grid Corporation of China and Southern Power Grid Company have all carried out the work of transforming plant primary equipment insulated on-line monitoring.The on-line monitoring saddlebag oil scraper gas chromatogram monitoring of transformer, the monitoring of sleeve pipe dielectric loss, electric capacity and partial discharge monitoring.And be one of important channel obtaining monitor signal by bottom shielding of bushing.Obtaining the usual way of monitor signal by bottom shielding of bushing is opened by the end shield lid of sleeve pipe, installs one with the adapter of the line with ground of casing insulation, and sensor installation obtains the signal of monitoring on ground wire.In recent years, along with the development of transformer online monitoring technology, the demand of adapter is strengthened, occurred the adapter of many improvement.201120508487.6), " a kind of novel end shield of high-voltage bushing adapter attachment devices " (patent No.: 201320366618.0), " leakage current sampling device for end shield of high-voltage bushing " (patent No.: 201220240197.2), " integral connecting structure of transformer and current sensor " (patent No.: 200910084520.4) as: Chinese patent literature disclosed " high voltage capacitive apparatus end shield the earthing device " (patent No.:.Applicant finds after analyzing and researching to above-mentioned patent documentation, " leakage current sampling device for end shield of high-voltage bushing " (patent No.: 201220240197.2) be provided with a sensor, " integral connecting structure of transformer and current sensor " (patent No.: 200910084520.4) be provided with current sensor, but the sensor not relating to Partial Discharge Detection.And the weak point of two other patent is, only drawn by end shield wire, sensor still needs other setting.
Utility model content
The purpose of this utility model is, for the Problems existing of prior art, improves, and proposes and studies transformer online monitoring end shield of high-voltage bushing adapter.
Technical solution of the present utility model is, adopt survey sensor and end shield converter, survey sensor is contained in aluminum alloy casing, end shield converter is a device drawing signal from transformer end shield matched with transformer end shield, it is characterized in that: combined by web member end shield converter and survey sensor, can dismantle, web member comprises 1# web member and 2# web member; End shield converter is made up of aluminium alloy urceolus, lining, 1# web member, retainer plate and nut, lining is contained in aluminium alloy urceolus, 1# web member is contained in lining, and fixed trap is contained on 1# web member, and retainer plate is fixed together by screw thread and aluminium alloy urceolus internal thread; Survey sensor is sleeved on 2# web member, and the 2# web member being set with survey sensor is fixed by nut and aluminum alloy casing; Aluminum alloy casing is provided with leading-out end, and the extension line of survey sensor is drawn by leading-out end.
It is characterized in that, one end of 2# web member have passed through aluminum alloy casing, and the nut of fixing 2# web member is outside aluminum alloy casing, and 2# web member is equipped with the part of survey sensor in aluminum alloy casing.
It is characterized in that, the periphery being contained in the survey sensor in Al alloy shell is wound around insulating film material.
It is characterized in that, described survey sensor comprises current sensor and local discharge sensor, and 2# web member passes the central through hole of current sensor and local discharge sensor.
It is characterized in that, limited location platform on 1# web member, two ends of 1# web member are processed into the plug-in unit connected, and one end is hollow jack, and the other end is solid plug.
It is characterized in that, limited location platform on 2# web member, two ends of 2# web member are processed into the assembly connected, and it is hollow jack that the assembly connected is processed in 2# web member one end, and it is solid threaded bar that the other end is processed into the assembly connected.
It is characterized in that, the hollow jack of 1# web member one end is the copper pipe splitting into 4 lobes, and the solid plug of the other end is real core copper rod plug.
It is characterized in that, the leading-out end that aluminum alloy casing is provided with adopts aviation plug.
It is characterized in that, described current sensor measurement bushing shell for transformer electric current, capacitance and dielectric loss value, current sensor comprises iron core and coil, and iron core adopts 30/40*15 permalloy, the number of turn 400-1000 circle of coil; The periphery insulating film material of coil is wound around.
It is characterized in that, described local discharge sensor measuring transformer and inside pipe casing local discharge signal, local discharge sensor comprises iron core and coil, and iron core adopts 30/50*20 soft magnetism, the number of turn 50-100 circle of coil; The periphery insulating film material of coil is wound around.
The effect of end shield converter is: 1) draw end shield signal, 2) protection transformer end shield is from the damage of any mechanical force or maloperation in work progress.3) direct ground connection after making end shield pass survey sensor.Survey sensor comprises current sensor and local discharge sensor, current sensor measurement bushing shell for transformer electric current, capacitance and dielectric loss value.Local discharge sensor measuring transformer and inside pipe casing local discharge signal.
The utility model has the advantages that, novel in design, rational in infrastructure, easy for installation, use reliable.Survey sensor channel floor wherein, when sleeve pipe carries out routine test, can take off by the utility model.
Accompanying drawing explanation
Fig. 1, basic structure schematic diagram of the present utility model.
Fig. 2, basic structure side view of the present utility model.
The 1# web member that Fig. 3, the utility model adopt and 2# web member connect schematic diagram.
The 1# web member that Fig. 4, the utility model adopt and 2# web member connect the A-A of schematic diagram to cut-open view.
In figure, 1, aluminium alloy urceolus; 2 linings; 3,1# web member; 4, retainer plate; 5, nut; 6, aluminum alloy casing; 7,2# web member; 8, nut; 9, current sensor; 10, local discharge sensor; 11, local discharge sensor leading-out end; 12, current sensor leading-out end.
Embodiment
Below, embodiment of the present utility model is described with reference to the accompanying drawings in detail.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, adopt survey sensor and end shield converter, survey sensor is contained in aluminum alloy casing 6, end shield converter and survey sensor is combined by web member, can dismantle.Web member comprises 1# web member 3 and 2# web member 7.End shield converter is a device drawing signal from transformer end shield matched with transformer end shield spiral shell.End shield converter and transformer end shield screw thread accessory.End shield converter is made up of aluminium alloy urceolus 1, lining 2,1# web member 3, retainer plate 4 and nut 5, and lining 2 is contained in aluminium alloy urceolus 1, and 1# web member 3 is contained in lining 2, and fixed trap 4 is contained on 1# web member 3, and fixed trap 4 has screw thread.Screw thread on retainer plate 4 is connected with the internal thread of aluminium alloy urceolus 1, and 1# web member 3 is fixed at retainer plate 4 opposite side nut 5; Survey sensor is sleeved on 2# web member 7, and the 2# web member 7 being set with survey sensor is fixed by nut 8 and aluminum alloy casing 6; Aluminum alloy casing 6 is provided with leading-out end, and the extension line of survey sensor is drawn by leading-out end.One end of 2# web member 7 have passed through aluminum alloy casing 6, and the nut 8 of fixing 2# web member 7 is outside aluminum alloy casing 6, and 2# web member 7 is equipped with the part of survey sensor in aluminum alloy casing 6.The periphery being contained in the survey sensor in Al alloy shell 6 is wound around insulating film material.
Described survey sensor comprises current sensor 9 and local discharge sensor 10, is fitted together by 2# web member 7 current sensor 9 and local discharge sensor 10, and 2# web member 7 passes the central through hole of current sensor 9 and local discharge sensor 10.
1# web member 3 and 2# web member 7 all adopt copper rod processing and fabricating.
Limited location platform on 1# web member 3, two ends of 1# web member 3 are processed into the plug-in unit connected, and one end is hollow jack, and the other end is solid plug; The hollow jack of 1# web member 3 one end is the copper pipe splitting into 4 lobes, and the solid plug of the other end is real core copper rod plug.
Limited location platform on 2# web member 7, two ends of 2# web member 7 are processed into the assembly connected, and it is hollow jack that the assembly connected is processed in 2# web member 7 one end, and it is solid threaded bar that the other end is processed into the assembly connected; The hollow jack of 2# web member 7 one end is the copper pipe splitting into 4 lobes.
The leading-out end that aluminum alloy casing 6 is provided with adopts aviation plug.The leading-out end that aluminum alloy casing 6 is provided with comprises local discharge sensor leading-out end 11 and current sensor leading-out end 12.
Described current sensor 9 measuring transformer casing current, capacitance and dielectric loss value, current sensor 9 comprises iron core and coil, and iron core adopts 30/40*15 permalloy, the number of turn 400-1000 circle of coil.The periphery insulating film material of coil is wound around.Described local discharge sensor measuring transformer and inside pipe casing local discharge signal, local discharge sensor comprises iron core and coil, and iron core adopts 30/50*20 soft magnetism, the number of turn 50-100 circle of coil; The periphery insulating film material of coil is wound around.
Described lining 2 adopts nylon lining.Described retainer plate 4 adopts nylon retainer plate.Nut 5 adopts M10 copper screw cap, and nut 8 adopts M10 copper screw cap.
Installation steps of the present utility model:
1, end shield converter is installed:
A. lining 2 is loaded in aluminium alloy urceolus 1.
B. insert in retainer plate 4 by 1# web member 3, the limiting stand on 1# web member 3 and retainer plate 4 accessory, the screw thread of retainer plate 4 is connected with the internal thread of aluminium alloy urceolus, then 1# web member 3 and retainer plate 4 is integrally slowly screwed in aluminium alloy urceolus 1.
C. by the entrance point of aluminium alloy urceolus 1 precession transformer high-voltage bushing end shield, then by retainer plate 4 slowly forward impelling.The yardstick of precession will be determined according to the transformer of different model.After propelling, screw with M10 copper screw cap, 1# web member 3 and retainer plate 4 are fixed together.
2, survey sensor assembling:
1) survey sensor comprises current sensor 9 and local discharge sensor 10, is arranged on aluminum alloy casing 6 by one end of 2# web member 7 by nut 8; Current sensor 9 and local discharge sensor 10 are loaded in aluminum alloy casing 6, make 2# web member 7 have one end of hollow jack through the central through hole on current sensor 9 and local discharge sensor 10, current sensor 9 and local discharge sensor 10 are sleeved on 2# web member 7.
2) current sensor 9 is connected local discharge sensor leading-out end 11 and current sensor leading-out end 12 respectively with the extension line of local discharge sensor 10.Local discharge sensor leading-out end 11 and current sensor leading-out end 12 are arranged on aluminum alloy casing 6, are tightened by the nut 8 that aluminum alloy casing 6 is fixed 2# web member 7.
3) periphery of survey sensor and 2# web member 7 non-perforate part insulating film material are wound around.
3, survey sensor and end shield converter accessory:
The hollow jack of the 2# web member 7 of the survey sensor (current sensor 9 and local discharge sensor 10) fixed is aimed at the solid plug of the 1# web member 3 of end shield converter, the aluminum alloy casing 6 that survey sensor is housed slowly is rotated simultaneously, allow the solid plug of 1# web member 3 enter in the hollow jack of 2# copper rod 7 go, and allow a part for the aluminium alloy urceolus 1 of end shield converter enter in aluminum alloy casing 6, the aluminium alloy urceolus 1 of end shield converter is connected as a single entity with the aluminum alloy casing 6 that survey sensor is housed.
Above content is the detailed description done the utility model in conjunction with concrete embodiment, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. transformer online monitoring end shield of high-voltage bushing adapter, adopt survey sensor and end shield converter, survey sensor is contained in aluminum alloy casing (6), end shield converter is a device drawing signal from transformer end shield matched with transformer end shield, it is characterized in that: combined by web member end shield converter and survey sensor, can dismantle, web member comprises 1# web member (3) and 2# web member (7), end shield converter is by aluminium alloy urceolus (1), lining (2), 1# web member (3), retainer plate (4) and nut composition, lining (2) is contained in aluminium alloy urceolus (1), 1# web member (3) is contained in lining (2), retainer plate (4) is sleeved on 1# web member, screw thread on retainer plate (4) is connected with the internal thread of aluminium alloy urceolus (1), 1# web member (3) is fixed at retainer plate (4) opposite side nut, survey sensor is sleeved on 2# web member (7), the 2# web member (7) being set with survey sensor is fixed by nut and aluminum alloy casing (6), aluminum alloy casing (6) is provided with leading-out end, the extension line of survey sensor and leading-out end accessory.
2. transformer online monitoring end shield of high-voltage bushing adapter according to claim 1, it is characterized in that, one end of 2# web member (7) have passed through aluminum alloy casing (6), at aluminum alloy casing (6) outward, 2# web member (7) is equipped with the part of survey sensor in aluminum alloy casing (6) to the nut of fixing 2# web member (7).
3. transformer online monitoring end shield of high-voltage bushing adapter according to claim 1, is characterized in that, the periphery being contained in the survey sensor in Al alloy shell (6) is wound around insulating film material.
4. transformer online monitoring end shield of high-voltage bushing adapter according to claim 1, it is characterized in that, described survey sensor comprises current sensor (9) and local discharge sensor (10), and 2# web member (7) is through the central through hole of current sensor (9) and local discharge sensor (10).
5. transformer online monitoring end shield of high-voltage bushing adapter according to claim 1, it is characterized in that, the upper limited location platform of 1# web member (3), two ends of 1# web member (3) are processed into the plug-in unit connected, one end is hollow jack, and the other end is solid plug.
6. transformer online monitoring end shield of high-voltage bushing adapter according to claim 1, it is characterized in that, the upper limited location platform of 2# web member (7), two ends of 2# web member (7) are processed into the assembly connected, it is hollow jack that the assembly connected is processed in 2# web member (7) one end, it is solid threaded bar that the other end is processed into the assembly connected
7. transformer online monitoring end shield of high-voltage bushing adapter according to claim 5, is characterized in that, the hollow jack of 1# web member (3) one end is the copper pipe splitting into pintongs, and the solid plug of the other end is real core copper rod plug.
8. transformer online monitoring end shield of high-voltage bushing adapter according to claim 1, is characterized in that, the leading-out end that aluminum alloy casing (6) is provided with adopts aviation plug.
9. transformer online monitoring end shield of high-voltage bushing adapter according to claim 4, it is characterized in that, described current sensor (9) measuring transformer casing current, capacitance and dielectric loss value, current sensor (9) comprises iron core and coil, iron core adopts 30/40*15 permalloy, the number of turn 400-1000 circle of coil, the periphery insulating film material of coil is wound around.
10. a kind of transformer online monitoring end shield of high-voltage bushing adapter according to claim 4, it is characterized in that, described local discharge sensor (10) measuring transformer and inside pipe casing local discharge signal, local discharge sensor (10) comprises iron core and coil, iron core adopts 30/50*20 soft magnetism, the number of turn 50-100 circle of coil, the periphery insulating film material of coil is wound around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865109.7U CN204314342U (en) | 2014-12-29 | 2014-12-29 | Transformer online monitoring end shield of high-voltage bushing adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865109.7U CN204314342U (en) | 2014-12-29 | 2014-12-29 | Transformer online monitoring end shield of high-voltage bushing adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204314342U true CN204314342U (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420865109.7U Expired - Fee Related CN204314342U (en) | 2014-12-29 | 2014-12-29 | Transformer online monitoring end shield of high-voltage bushing adapter |
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| CN (1) | CN204314342U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301297A (en) * | 2015-11-30 | 2016-02-03 | 杭州西湖电子研究所 | End shield junction box with double shielding function |
| CN105403818A (en) * | 2015-11-19 | 2016-03-16 | 北京邦瑞智能电网技术有限公司 | Method and system for detecting transformer partial discharge based on transformer bushing |
| CN105866643A (en) * | 2016-05-11 | 2016-08-17 | 广西银河迪康电气有限公司 | Medium-voltage bushing pressure resistance detection tool |
| CN106706972A (en) * | 2017-01-20 | 2017-05-24 | 志峰（北京）环境科技集团有限公司 | Bushing end screen signal adapter used for sewage treatment |
| CN108710005A (en) * | 2018-06-12 | 2018-10-26 | 广州供电局有限公司 | Dielectric loss partial discharge sensor structure and capacitive high-voltage electrical equipment testing agency |
| US11146053B2 (en) | 2016-01-29 | 2021-10-12 | Power Hv Inc. | Bushing for a transformer |
-
2014
- 2014-12-29 CN CN201420865109.7U patent/CN204314342U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403818A (en) * | 2015-11-19 | 2016-03-16 | 北京邦瑞智能电网技术有限公司 | Method and system for detecting transformer partial discharge based on transformer bushing |
| CN105301297A (en) * | 2015-11-30 | 2016-02-03 | 杭州西湖电子研究所 | End shield junction box with double shielding function |
| US11146053B2 (en) | 2016-01-29 | 2021-10-12 | Power Hv Inc. | Bushing for a transformer |
| CN105866643A (en) * | 2016-05-11 | 2016-08-17 | 广西银河迪康电气有限公司 | Medium-voltage bushing pressure resistance detection tool |
| CN106706972A (en) * | 2017-01-20 | 2017-05-24 | 志峰（北京）环境科技集团有限公司 | Bushing end screen signal adapter used for sewage treatment |
| CN106706972B (en) * | 2017-01-20 | 2019-01-18 | 志峰（北京）环境科技集团有限公司 | For the bottom shielding of bushing signal adapter in sewage treatment |
| CN108710005A (en) * | 2018-06-12 | 2018-10-26 | 广州供电局有限公司 | Dielectric loss partial discharge sensor structure and capacitive high-voltage electrical equipment testing agency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20161229 |