CN204129169U - The comprehensive assessment of bushing shell for transformer state detects analysis platform - Google Patents
The comprehensive assessment of bushing shell for transformer state detects analysis platform Download PDFInfo
- Publication number
- CN204129169U CN204129169U CN201420647694.3U CN201420647694U CN204129169U CN 204129169 U CN204129169 U CN 204129169U CN 201420647694 U CN201420647694 U CN 201420647694U CN 204129169 U CN204129169 U CN 204129169U
- Authority
- CN
- China
- Prior art keywords
- transformer
- bushing shell
- bushing
- cable
- leakage current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012546 transfer Methods 0.000 claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 abstract description 16
- 230000035945 sensitivity Effects 0.000 abstract description 7
- 238000009413 insulation Methods 0.000 description 19
- 230000007547 defect Effects 0.000 description 9
- 230000003449 preventive effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model relates to bushing shell for transformer detection technique, and specifically a kind of bushing shell for transformer state comprehensive assessment detects analysis platform.The utility model solves the problem of the low and poor in timeliness of existing bushing shell for transformer detection technique sensitivity.The comprehensive assessment of bushing shell for transformer state detects analysis platform and comprises bushing shell for transformer, Transformer Bushing Tap, end shield leakage current sensor, shielded cable, data transmit-receive transfer IED, communication cable, signal cable and system platform; Wherein, bushing shell for transformer is connected with Transformer Bushing Tap; Transformer Bushing Tap is connected with the signal input part of end shield leakage current sensor; The signal output part of end shield leakage current sensor is connected by the signal input part of shielded cable with data transmit-receive transfer IED5; Signal cable is connected with the signal input part of data transmit-receive transfer IED.The utility model is applicable to the detection of bushing shell for transformer.
Description
Technical field
The utility model relates to bushing shell for transformer detection technique, and specifically a kind of bushing shell for transformer state comprehensive assessment detects analysis platform.
Background technology
Substation transformer is one of most important power equipment in electrical network, thus transformer normal operation to ensure electrical network safe, stable, economical operation is significant.Experience shows, in the operation of transformer, causes the main cause of Accident of Transformer to be the deterioration of its insulating property, and the insulating property of transformer are mainly determined by the state of insulation of bushing shell for transformer.Bushing shell for transformer is insulating sleeve inside transformer high and low pressure being guided to fuel tank outside, and it not only as lead-in wire insulation against ground, and is responsible for the effect of anchor leg.Bushing shell for transformer is in long-time running; frequent meeting causes insulation defect because of the impact of the changes in environmental conditions such as filth, chemical corrosion, lighting, heating, mechanical force; and once fail Timeliness coverage insulation defect taking measures; insulation defect just can develop gradually; cause insulation breakdown thus and cause transformer damage; even cause transformer to blast with on fire, and then cause casualties and have a power failure on a large scale.Therefore, in order to ensure the normal operation of transformer, need to detect the state of insulation of bushing shell for transformer.Existing bushing shell for transformer detection technique mainly detects by regularly carrying out the state of insulation of conventional preventive trial to bushing shell for transformer.But along with the raising of transformer voltage grade, the increase of capacity, existing bushing shell for transformer detection technique has been difficult to meet testing requirement, be in particular in: one, preventive trial all carries out after power failure, thus for high voltage transformer bushings, its trial voltage is just far below working voltage, this just causes in process of the test, some insulation defect of inside pipe casing often there is no obvious performance characteristic, namely cause above-mentioned insulation defect to be difficult to be found, cause the sensitivity of existing bushing shell for transformer detection technique low thus.They are two years old, preventive trial is all undertaken by the fixing cycle, it is ageing is subject to certain restrictions, cause thus: be difficult to the insulation defect finding that bushing shell for transformer grows up within the test period on the one hand, Timeliness coverage, tracking in time cannot be accomplished, overhaul in time, do not fully take into account the virtual condition of bushing shell for transformer on the other hand, cause unnecessary excess maintenance, thus cause very large economic loss and the waste of human and material resources, sometimes even also can cause bushing shell for transformer unnecessary harm because keeping in repair accidentally or leave potential faults.In sum, existing bushing shell for transformer detection technique limit due to self principle, and ubiquity sensitivity is low, the problem of poor in timeliness.Based on this, be necessary to invent a kind of brand-new bushing shell for transformer detection technique, to solve the problems referred to above that existing bushing shell for transformer detection technique exists.
Summary of the invention
The utility model, in order to solve the problem of the low and poor in timeliness of existing bushing shell for transformer detection technique sensitivity, provides a kind of bushing shell for transformer state comprehensive assessment and detects analysis platform.
The utility model adopts following technical scheme to realize: the comprehensive assessment of bushing shell for transformer state detects analysis platform, comprise bushing shell for transformer, Transformer Bushing Tap, end shield leakage current sensor, shielded cable, data transmit-receive transfer IED(Intelligent Electronic Device, intelligent electronic device), communication cable, signal cable and system platform; Wherein, bushing shell for transformer is connected with Transformer Bushing Tap; Transformer Bushing Tap is connected with the signal input part of end shield leakage current sensor; The signal output part of end shield leakage current sensor is connected by the signal input part of shielded cable with data transmit-receive transfer IED5; Signal cable is connected with the signal input part of data transmit-receive transfer IED; The signal output part of data transmit-receive transfer IED is connected with the signal input part of system platform by communication cable.
During work, signal cable connects external voltage mutual inductor.End shield leakage current sensor is responsible for the end shield leakage current values gathering bushing shell for transformer in real time, and the end shield leakage current values collected is sent to data transmit-receive transfer IED by shielded cable.The bus voltage value gathering transformer is responsible in real time by voltage transformer (VT), and the bus voltage value collected is sent to data transmit-receive transfer IED by signal cable.End shield leakage current values and bus voltage value are sent to system platform by communication cable by data transmit-receive transfer IED then.System platform calculates dielectric loss value (dielectric loss angle tangent) and the capacitance value of bushing shell for transformer according to the end shield leakage current values received and bus voltage value.End shield leakage current values can reflect the insulation resistance of bushing shell for transformer directly, effectively, for find bushing shell for transformer early stage make moist or the defect successfuls such as water are arranged at bottom.Dielectric loss can reflect the size of the insulation dielectric loss of bushing shell for transformer well.The whether phenomenon such as discharge breakdown and oil starvation in insulation between each capacitance plate that electric capacity can reflect bushing shell for transformer.Therefore, by end shield leakage current, dielectric loss value, the electric capacity of Real-time Collection and calculating transformer sleeve pipe, just can grasp the state of insulation of bushing shell for transformer and the insulation defect of Timeliness coverage bushing shell for transformer comprehensively, ensure the normal operation of transformer, and then ensure safe, stable, the economical operation of electrical network.Based on said process, compared with existing bushing shell for transformer detection technique, bushing shell for transformer state comprehensive assessment described in the utility model detects analysis platform and has the following advantages: one, it just can detect the state of insulation of bushing shell for transformer without the need to having a power failure, thus avoid and cause some insulation defect of inside pipe casing to be difficult to be found because trial voltage is too low, effectively improve sensitivity thus.They are two years old, its state of insulation for bushing shell for transformer carries out real-time online detection, thus it is ageing completely unrestricted, not only achieve Timeliness coverage, tracking in time, overhaul in time, and avoid unnecessary excess maintenance, effectively saving human and material resources, financial cost thus, eliminating because keeping in repair the bushing shell for transformer infringement caused or potential faults accidentally.In sum, bushing shell for transformer state comprehensive assessment described in the utility model detects analysis platform based on brand-new structure, efficiently solves the problem of the low and poor in timeliness of existing bushing shell for transformer detection technique sensitivity.
The utility model efficiently solves the problem of the low and poor in timeliness of existing bushing shell for transformer detection technique sensitivity, is applicable to the detection of bushing shell for transformer.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-bushing shell for transformer, 2-Transformer Bushing Tap, 3-end shield leakage current sensor, 4-shielded cable, 5-data transmit-receive transfer IED, 6-communication cable, 7-signal cable, 8-system platform.
Embodiment
The comprehensive assessment of bushing shell for transformer state detects analysis platform, comprises bushing shell for transformer 1, Transformer Bushing Tap 2, end shield leakage current sensor 3, shielded cable 4, data transmit-receive transfer IED5, communication cable 6, signal cable 7 and system platform 8; Wherein, bushing shell for transformer 1 is connected with Transformer Bushing Tap 2; Transformer Bushing Tap 2 is connected with the signal input part of end shield leakage current sensor 3; The signal output part of end shield leakage current sensor 3 is connected with the signal input part of data transmit-receive transfer IED5 by shielded cable 4; Signal cable 7 is connected with the signal input part of data transmit-receive transfer IED5; The signal output part of data transmit-receive transfer IED5 is connected with the signal input part of system platform 8 by communication cable 6.
Claims (1)
1. the comprehensive assessment of bushing shell for transformer state detect an analysis platform, it is characterized in that: comprise bushing shell for transformer (1), Transformer Bushing Tap (2), end shield leakage current sensor (3), shielded cable (4), data transmit-receive transfer IED(5), communication cable (6), signal cable (7) and system platform (8); Wherein, bushing shell for transformer (1) is connected with Transformer Bushing Tap (2); Transformer Bushing Tap (2) is connected with the signal input part of end shield leakage current sensor (3); The signal output part of end shield leakage current sensor (3) is by shielded cable (4) and data transmit-receive transfer IED(5) signal input part be connected; Signal cable (7) and data transmit-receive transfer IED(5) signal input part be connected; Data transmit-receive transfer IED(5) signal output part be connected with the signal input part of system platform (8) by communication cable (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420647694.3U CN204129169U (en) | 2014-11-03 | 2014-11-03 | The comprehensive assessment of bushing shell for transformer state detects analysis platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420647694.3U CN204129169U (en) | 2014-11-03 | 2014-11-03 | The comprehensive assessment of bushing shell for transformer state detects analysis platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204129169U true CN204129169U (en) | 2015-01-28 |
Family
ID=52385514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420647694.3U Expired - Fee Related CN204129169U (en) | 2014-11-03 | 2014-11-03 | The comprehensive assessment of bushing shell for transformer state detects analysis platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204129169U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271861A (en) * | 2017-06-14 | 2017-10-20 | 南方电网科学研究院有限责任公司 | The method and system of bushing shell for transformer insulating properties index test |
| CN110346648A (en) * | 2019-07-05 | 2019-10-18 | 杭州西湖电子研究所 | A kind of three-dimensional figure spectrum expression of wide area relative capacity ratio |
| CN111458604A (en) * | 2019-12-27 | 2020-07-28 | 广东电网有限责任公司电力科学研究院 | Transformer self-sensing-based oscillation type lightning impulse test system and method |
-
2014
- 2014-11-03 CN CN201420647694.3U patent/CN204129169U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271861A (en) * | 2017-06-14 | 2017-10-20 | 南方电网科学研究院有限责任公司 | The method and system of bushing shell for transformer insulating properties index test |
| CN110346648A (en) * | 2019-07-05 | 2019-10-18 | 杭州西湖电子研究所 | A kind of three-dimensional figure spectrum expression of wide area relative capacity ratio |
| CN110346648B (en) * | 2019-07-05 | 2021-08-24 | 杭州西湖电子研究所 | Three-dimensional map expression method for wide-area relative capacitance ratio |
| CN111458604A (en) * | 2019-12-27 | 2020-07-28 | 广东电网有限责任公司电力科学研究院 | Transformer self-sensing-based oscillation type lightning impulse test system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103558533B (en) | Based on insulation ag(e)ing diagnostic system and the method for 10kV XLPE cable | |
| CN104407286B (en) | A kind of high voltage isolator machine performance monitoring and method for early warning | |
| CN103713210A (en) | Dry power transformer monitoring and diagnosis system | |
| CN103219727B (en) | Partition power grid structure dynamics method of adjustment based on PMU actual measurement | |
| CN203811728U (en) | Single-core power cable sheath earth fault detecting system based on circulation measurement | |
| CN103513169A (en) | High voltage cable partial discharge detection method | |
| CN203117299U (en) | Integrative sensor for monitoring dielectric loss of power transformer bushing | |
| CN204129169U (en) | The comprehensive assessment of bushing shell for transformer state detects analysis platform | |
| CN219715710U (en) | High-voltage cable sheath grounding current on-line monitoring device | |
| CN103234576A (en) | State monitoring system for power devices in intelligent substations | |
| CN201514446U (en) | High-voltage AC/DC test device for environmental monitoring | |
| CN204214974U (en) | High voltage power cable terminal on-Line Monitor Device | |
| CN204497393U (en) | A kind of conduction anti-corrosion type earthing device | |
| CN202600082U (en) | Online device for monitoring operational states of grounding network of power transmission towers | |
| CN206223915U (en) | A kind of ground insulator discharge monitoring device of double-current sensor | |
| CN204228900U (en) | A kind of local discharge signal harvester | |
| CN204967217U (en) | A connection structure that is used for between oil filled cable and dry -type crosslinked cable | |
| CN204228889U (en) | Single-core high-voltage cable screen armour ground connection on-line intelligence monitoring system | |
| CN204945268U (en) | Lightning arrester on-line monitoring circuit | |
| CN203786256U (en) | Low-frequency superposition type measuring circuit | |
| CN203352283U (en) | Remotely controllable and maintainable 10 kV on-column transformer | |
| CN202563012U (en) | Large-scale power station grounding net impedance parameter measuring device | |
| CN203133149U (en) | Detection device for grounding current of transformer core | |
| CN204855624U (en) | Harmless sampling device of capacitive equipment end screen electric current | |
| CN204758767U (en) | Suspension insulator's ac voltage withstand test testing system |
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 |
Granted publication date: 20150128 Termination date: 20151103 |
|
| EXPY | Termination of patent right or utility model |