CN106324444A - Transformer test platform - Google Patents
Transformer test platform Download PDFInfo
- Publication number
- CN106324444A CN106324444A CN201510349784.3A CN201510349784A CN106324444A CN 106324444 A CN106324444 A CN 106324444A CN 201510349784 A CN201510349784 A CN 201510349784A CN 106324444 A CN106324444 A CN 106324444A
- Authority
- CN
- China
- Prior art keywords
- transformer
- winding
- tap
- partial discharge
- test platform
- 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.)
- Granted
Links
Landscapes
- Testing Relating To Insulation (AREA)
- Housings And Mounting Of Transformers (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
A transformer test platform provided by the present invention comprises a single phase transformer, a voltage regulation winding, a high voltage joint, an on-load voltage regulation switch and a partial discharge model. The voltage regulation winding is connected with the high voltage end of a high voltage winding in the single phase transformer, the on-load voltage regulation switch is arranged on the voltage regulation winding, the high voltage joint is arranged in the middle of the high voltage winding, and the partial discharge model stretched into a transformer fuel tank of the single phase transformer via a sealing cylinder. Compared with the prior art, the transformer test platform provided by the present invention can generate a real partial discharge signal under the normal operation voltage of the transformer, so that not only the propagation process of the partial discharge signal along the high voltage winding of the transformer can be simulated, but also the high voltage winding of the transformer can be located in a rated voltage, and the high voltage insulation characteristic of a partial discharge monitoring technology and a partial discharge source positioning technology are convenient to research. Moreover, a partial discharge test and a winding local overheating test can be carried out simultaneously.
Description
Technical field
The present invention relates to power transformer technical field, be specifically related to a kind of transformer test platform.
Background technology
Power transformer is one of equipment crucial in power system, and the monitoring to transformator operation conditions is extremely important, flows at present
The intelligent transformer of row requires confined state monitoring device on the transformer.When implementing Transformer's Condition Monitoring, it is the most right to need
Each monitoring technology is studied, it is desirable to as far as possible close under power transformer actual operating mode to the sensitivity of every monitoring technology,
The performance research experiment such as accuracy, longtime running stability.Transformer test platform energy is needed for realizing above-mentioned experimental study
Enough offers are more nearly the condition of actual condition, thus improve test efficiency, save test period.Transformer test platform at present
Specifically include that
1, about local discharge signal test platform of propagation law in Transformer Winding
The main cause of transformer equipment fault is the deterioration of its insulating properties, and shelf depreciation causes transformer insulated fault
One of the main reasons.In order to grasp evolution and the propagation law of inside transformer shelf depreciation, the common method used at present
It is:
(1) partial discharge model such as needle plate electric discharge, the electric discharge of ball plate, bubble-discharge model are utilized to carry out partial discharge test research；
But this type of test platform only simulates local discharge signal feature and the development of defects process of paper oil insulation material, and can not study
Local discharge signal propagation law on inside transformer winding.
(2) set up the mathematical model of Transformer Winding, utilize simulation analysis of computer to be similar to the signal of partial discharge pulse at winding
In propagation law；In view of the complexity of Transformer Winding, theoretical simulation result is the most coarse, and error is the biggest.
(3) in 10kV Transformer Winding, or on the small transformers winding model of specialized designs processing, injected pulse signal,
Measure the response signal on each wire turn of winding, local discharge signal propagation law in winding construction of analyzing and researching simultaneously；But
The Transformer Winding of these small voltage grades, the winding of electromagnetic property and actual large-scale power transformer of winding model of small size
Electromagnetic property differ greatly.
(4) transform on retired actual power transformer, partial discharge model is connected to the lead-out wire of its high pressure winding
On；This test method be mainly used to study inside transformer Partial Discharge Sources Position Research, due to partial discharge model even
Being wired on the lead-out wire of winding, partial discharge pulse's signal has the most spread out of bushing without winding construction, thus from height
The local discharge signal monitored on gland pipe is difficult to extract the rule propagated in the windings about pulse signal.
Therefore, there is presently no and can embody partial discharge pulse's signal voltage levels (example of propagation law in Transformer Winding
Such as 220kV and above thereof) Existing during Partial Discharge Test for Transformer platform.
2, about the test platform of Transformer Winding temperature monitoring technique
When inside transformer paper oil insulation or core lamination stack insulation damages, damaged location abnormal heating, temperature rises.Therefore,
Power transformer run duration at the scene, monitors its internal temperature and then localization of faults temperature and position is extremely important.At present
Research method about the monitoring of transformer exception heating accident includes:
(1) utilize power transformer to open existing top-oil temperature sensor, monitor transformator top-oil temperature, bring Transformer Winding into
Temperature model, the maximum temperature on estimation winding；Owing to inside transformer structure is complicated, for the transformer oil flowing feelings of heat radiation
Condition is the most more complicated, causes transformer temperature model the most coarse, utilize the transformator of this model and top-oil temperature numerical estimation around
Group maximum temperature error is the biggest.
(2) fibre optic temperature sensor is installed in Winding in Power Transformer, monitors the temperature of Transformer Winding in real time；But install
The power transformer of winding temperature monitoring, can only monitor the temperature that Transformer Winding is current, due in transformator day-to-day operation very
Superheated steam drier occurs less, thus utilization is in operating transformator and cannot carry out the research of Transformer Winding temperature monitoring technique.
It is mounted with the power transformer that winding temperature is monitored, temperature rise test can be passed through at laboratory, improve the temperature of winding, enter
And check winding temperature monitoring technology.Utilize which research winding temperature monitoring technology, there are following 3 deficiencies:
1.: the method makes short circuit current flow through whole winding, and then makes the temperature of whole winding all raise；And real transformer
The overheating fault major part occurred is that part short circuit in winding is overheated, SI semi-insulation arc discharge is overheated.Thus, the method is produced
Raw winding bulk temperature raises not only to raise with the local winding temperature in reality and is very different, and cannot be used for research heat
The research of some temperature localization method.
2.: the method makes short circuit current flow through whole winding, and then makes the temperature of whole winding all raise；But required merit
Rate is very big, and general laboratory does not possess the laboratory of the mechanisms such as experimental condition, only transformer factory could carry out this type of test.
3.: the method short circuit high pressure winding, thus the voltage of high pressure winding and low pressure winding is the lowest, is only on short-circuit impedance
Voltage, usually less than the 10% of Transformer Winding rated voltage.Transformator in actual motion occurs that winding temperature is abnormal and raises
In state, the voltage of winding remains in that operation high voltage (such as, rated voltage).Therefore, the winding that the method obtains is utilized
In temperature increasing state, the voltage of winding is the lowest, it is impossible to embody high-temperature, the high voltage common effect to monitoring device.
Therefore, there is presently no to provide that winding temperature is abnormal to be raised, simultaneously winding be in the change transformator of high-voltage state around
Set temperature monitoring test platform.
3, about the multifunction test platform of transformer monitoring technology
Existing transformer monitoring technology, including decomposition gas detection in partial discharge monitoring, winding temperature monitoring, oil etc..Various
The test platform of monitoring technology, the most only partial function.Particularly, there is presently no can provide simultaneously partial discharge monitoring and
The test platform of winding temperature monitoring, thus there is following deficiency:
(1) impact of partial discharge pulse's opposing connection set temperature monitoring sensor in winding can not be studied；Winding temperature measurement dress can not be studied
Put partial discharge pulse's impact of communication process on winding.That is, existing single function test platform can not study multinomial monitoring skill
Influencing each other between art.
(2), when carrying out the long-time stability experiment of partial discharge monitoring technology and winding temperature monitoring technology, need to use respective
Test platform, test platform quantity causes practical operation and managerial inconvenience more.
To sum up, it is desirable to provide a kind of Multifunction transformer test platform, it is possible not only to when the specified operation of transformator simulate winding office
Portion's discharge fault, the propagation law of partial discharge pulse's signal in research paper oil insulation partial discharge characteristic and winding, and also permissible
During the rising of analogue transformer local heating in winding, and winding temperature simultaneously, winding is still in high-voltage state.
Summary of the invention
In order to meet the needs of prior art, the invention provides a kind of transformer test platform.
The technical scheme is that
First aspect, described test platform includes single-phase transformer, tap-changing windings, high pressure connection, on-load voltage regulating switch and local
Discharging model；
Described tap-changing windings is connected with the high-pressure side of single-phase transformer mesohigh winding, described on-load voltage regulating switch be arranged on pressure regulation around
In group；Described high pressure connection is arranged on the middle part of described high pressure winding；Described partial discharge model stretches into single-phase by sealed cylindrical
Inside the oil tank of transformer of transformator.
Preferably, described on-load voltage regulating switch includes actively branch road, transition branch road, and is successively set on described tap-changing windings
Shunting tap, the number of described shunting tap is at least 3；
Described active branch road includes that the first moving contact being sequentially connected with, the first switch, the first reactor and end determine contact；
Described transition branch road includes that the second moving contact being sequentially connected with, second switch, the second reactor and described end determine contact；
Described first moving contact and the second moving contact are slidably connected with shunting tap respectively；
Preferably, described shunting tap includes head end shunting tap and end shunting tap；Described head end shunting tap is arranged on institute
Stating the connection end of tap-changing windings and single-phase transformer, described end shunting tap is arranged on the other end of described tap-changing windings；
Described head end shunting tap accesses the first bushing, and described end is determined contact and accessed the second bushing；
Preferably, described partial discharge model includes the high-field electrode being provided with spring；Described high-field electrode passes through spring-compressed and institute
State high pressure connection contact to connect；
Preferably, the welding of described sealed cylindrical is arranged in the top window of described oil tank of transformer；The top of described sealed cylindrical
Higher than the liquid level in installation for transformer, so that there is not leakage of oil when being placed and taken out described partial discharge model；
Preferably, described high pressure connection includes the copper coin being welded on a wire one end；The other end of described wire and described list
The middle part of phase transformer mesohigh winding connects；
Described copper coin is the most smooth copper coin in surface and edge.
Second aspect, the method using above-mentioned test platform to carry out Transformer Winding local pyrexia test, the steps include:
Step 11: linked reactor between the first bushing and the second bushing；
Step 12: to the low pressure winding power of single-phase transformer；
Step 13: adjust the value of described reactor, changes the short circuit current in tap-changing windings, thus changes described tap-changing windings
Temperature.
The third aspect, uses the above-mentioned test platform method to power electrical apparatus, the steps include:
Step 21: linked reactor between the first bushing and the second bushing, by described electrical equipment and described reactance
Device is connected in series；
Step 22: to the low pressure winding power of single-phase transformer；
Step 23: adjust the value of described reactor, thus adjust the magnitude of voltage exported to described electrical equipment；
Described test platform to the rated voltage that the voltage max of power electrical apparatus is described single-phase transformer mesohigh winding,
Current value is the short circuit current in tap-changing windings.
Fourth aspect, uses the method that preceding claim test platform carries out Transformer Winding partial discharge test, and its method is:
Partial discharge model is put into inside transformer along sealed cylindrical so that the spring of partial discharge model mesohigh electrode is with high
The copper coin of crimp head is in close contact.
Compared with immediate prior art, the excellent effect of the present invention is:
1, a kind of transformer test platform that the present invention provides, can produce local really under transformator normal operating voltage and put
The signal of telecommunication, not only simulates local discharge signal along transformer high-voltage winding communication process, and transformer high-voltage winding can be at
Rated voltage, it is simple to the High-Voltage Insulation characteristic of research partial discharge monitoring technology and Partial Discharge Sources location technology；
2, a kind of transformer test platform that the present invention provides, when transformer regulating heating in winding, owing to being connected to bushing
Between the impedance of reactor be not equal to zero so that tap-changing windings does not has dead short, thus high pressure winding and the electricity of tap-changing windings
Press the highest, rated voltage can be equal to, it is simple to the High-Voltage Insulation characteristic of research Transformer Winding temperature monitoring technique；
3, a kind of transformer test platform that the present invention provides, partial discharge test can be carried out with the test of winding hot-spot simultaneously；
On the one hand partial discharge pulse's affecting laws through the tap-changing windings temperature sensor to being arranged on tap-changing windings can be studied,
On the other hand can study the long-time stability of partial discharge monitoring technology and winding temperature monitoring technology simultaneously, shorten test period；
4, a kind of transformer test platform that the present invention provides, it is possible to provide high voltage and big electric current, high electricity to other electric equipments
Pressure is the rated voltage of transformer high-voltage winding, and electric current is the short circuit current of tap-changing windings.
Accompanying drawing explanation
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1: a kind of transformer test platform structure schematic diagram in the embodiment of the present invention；
Fig. 2: embodiment of the present invention mesohigh joint and the connection diagram of partial discharge model；
Wherein, 1: high pressure winding；2: high pressure connection；21: partial discharge model；22: sealed cylindrical；23: copper coin；24:
Wire；3: tap-changing windings；4: the first bushings；5: the second bushings；6: reactor；7: low pressure winding；8:
On-load voltage regulating switch；9: iron core；10: low-tension bushing；11: actively branch road；12: transition branch road；13: the first reactors；
14: the second reactors；15: oil tank of transformer；16: installation for transformer.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most identical or
Similar label represents same or similar element or has the element of same or like function.Describe below with reference to accompanying drawing
Embodiment is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
A kind of transformer test platform that the present invention provides, is possible not only to when the specified operation of transformator simulate the event of winding shelf depreciation
Barrier, the propagation law of partial discharge pulse's signal in research paper oil insulation partial discharge characteristic and winding, and can simulate simultaneously
Transformator local heating in winding, and winding temperature raise time winding still in high-voltage state.
The present invention provide transformer test platform embodiment as it is shown in figure 1, particularly as follows:
This test platform includes single-phase transformer, tap-changing windings 3, high pressure connection 2, on-load voltage regulating switch 8 and partial discharge model
21, wherein,
Tap-changing windings 3 is connected with the high-pressure side of single-phase transformer mesohigh winding 1；On-load voltage regulating switch 8 is arranged on tap-changing windings
On 3；High pressure connection 2 is arranged on the middle part of high pressure winding 1；Partial discharge model 21 stretches into single-phase change by sealed cylindrical 22
Inside the oil tank of transformer of depressor.
(1) on-load voltage regulating switch
This on-load voltage regulating switch includes actively branch road 11, transition branch road 12, and the tap being successively set on tap-changing windings 3 is taken out
Head, the number of shunting tap is at least 3, as it is shown in figure 1, the number of the present embodiment shunting tap is 6.
Actively branch road 11 includes that the first moving contact being sequentially connected with, the first switch, the first reactor 13 and end determine contact；
Transition branch road 12 includes that the second moving contact being sequentially connected with, second switch, the second reactor 14 and end determine contact；
First moving contact and the second moving contact are slidably connected with shunting tap respectively.
Shunting tap includes head end shunting tap and end shunting tap；Head end shunting tap is arranged on tap-changing windings 3 and single-phase change
The connection end of depressor, end shunting tap is arranged on the other end of tap-changing windings 3；Head end shunting tap accesses the first bushing
4, end is determined contact and is accessed the second bushing 5.
(2) partial discharge model
This partial discharge model 8 includes the high-field electrode being provided with spring；High-field electrode is contacted with high pressure connection even by spring-compressed
Connect.During in the present embodiment, partial discharge model uses the partial discharge model such as needle plate electric discharge, the electric discharge of ball plate, bubble-discharge model
One or more.
(3) sealed cylindrical
As in figure 2 it is shown, the welding of this sealed cylindrical 22 is arranged in the top window of oil tank of transformer 15；The top of sealed cylindrical 22
End is higher than the liquid level of 16 in installation for transformer, so that there is not leakage of oil when being placed and taken out partial discharge model 8.
(4) high pressure connection
This high pressure connection 2 includes the copper coin 23 being welded on wire 24 one end, the other end of wire 24 and single-phase transformer mesohigh
The middle part of winding 1 connects；Copper coin 23 is the most smooth copper coin in surface and edge.
Test type and operational approach that in the embodiment of the present invention, above-mentioned transformer test platform includes be:
When 1, using test platform to carry out Transformer Winding local pyrexia test, including:
(1) linked reactor 6 between the first bushing 4 and the second bushing 5；
(2) power to the low pressure winding 7 of single-phase transformer；
(3) adjust the value of reactor 6, change the short circuit current in tap-changing windings 3, thus change the temperature of tap-changing windings 3.
When the numerical value of reactor 6 is less, be equivalent to tap-changing windings 3 by reactor 6 short circuit.When low pressure winding 7 is powered,
By short circuit current flow in tap-changing windings 3, and high pressure winding 1 flows only through load current, so that tap-changing windings 3 generates heat
Amount is much larger than high pressure winding 1 so that the temperature of tap-changing windings 3 is higher than high pressure winding.By changing the resistance value of reactor 6,
The short circuit current in tap-changing windings 3 can be changed, and then change the temperature of tap-changing windings 3.
Owing to the resistance value of reactor 6 is not equal to zero so that tap-changing windings 3 does not has dead short, thus high pressure winding 1 and adjusting
The voltage of pressure winding 3 is the highest, can be equal to rated voltage, and therefore this experiment porch may be used for the temperature prison of Transformer Winding
Survey technology is studied.
2, employing test platform is when power electrical apparatus, including:
(1) it is connected to after electrical equipment being connected with reactor 6 between first bushing 4 and the second bushing 5；
(2) powering to the low pressure winding 7 of single-phase transformer, and adjust the value of reactor 6, change in tap-changing windings 3 is short
Road electric current.Test platform is to the rated voltage that the voltage max of power electrical apparatus is single-phase transformer mesohigh winding 1, electricity
Flow valuve is the short circuit current in tap-changing windings 3.
When 3, using test platform to carry out Transformer Winding partial discharge test, including:
Partial discharge model 8 is put into inside single-phase transformer along sealed cylindrical 22 so that partial discharge model mesohigh electrode
Spring is in close contact with the copper coin 23 of high pressure connection 2.
Voltage in the middle part of high pressure winding 1 is passed to partial discharge model 8 by high pressure connection 2, so that partial discharge model 8
Generate electricity, owing to being electrically connected in the middle part of high pressure connection 2 and high pressure winding 1, have an advantage that
1.: after partial discharge pulse propagates a segment distance along high pressure winding 1, from the first bushing 4 and the second bushing 5
Spread out of so that the information propagated along winding containing partial discharge pulse from partial discharge pulse's signal of bushing end output；
2.: the voltage in partial discharge model 8 is a part for the high-pressure side voltage of high pressure winding 1 so that shelf depreciation mould
The withstanding voltage of type 8 is not necessarily larger than or is equal to the high-pressure side voltage of high pressure winding 1, and then can reduce partial discharge model 8
Volume.Therefore, when carrying out partial discharge test, the voltage on high pressure winding 1 remains rated voltage, and in actual motion
The transformator of identical electric pressure consistent；
3.: in partial discharge test, there is the risk that partial discharge model 8 is breakdown, with existing by partial discharge model 8
Compared with the transformer test platform that high pressure winding 1 lead-out wire is joined directly together, partial discharge model 8 and high voltage winding in the present embodiment
Connecting in the middle part of group 1, the voltage in partial discharge model 8 is relatively low, and then when partial discharge model is breakdown puts down transformer test
The impact injury that platform causes is less.
Finally should be noted that: described embodiment is only some embodiments of the present application rather than whole embodiments.
Based on the embodiment in the application, those of ordinary skill in the art obtained under not making creative work premise all its
His embodiment, broadly falls into the scope of the application protection.
Claims (9)
1. a transformer test platform, it is characterised in that described test platform includes single-phase transformer, tap-changing windings, high pressure
Joint, on-load voltage regulating switch and partial discharge model；
Described tap-changing windings is connected with the high-pressure side of single-phase transformer mesohigh winding, described on-load voltage regulating switch be arranged on pressure regulation around
In group；Described high pressure connection is arranged on the middle part of described high pressure winding；Described partial discharge model stretches into single-phase by sealed cylindrical
Inside the oil tank of transformer of transformator.
2. as claim 1 test platform, it is characterised in that described on-load voltage regulating switch includes that actively branch road, transition are propped up
Road, and it is successively set on the shunting tap on described tap-changing windings, the number of described shunting tap is at least 3；
Described active branch road includes that the first moving contact being sequentially connected with, the first switch, the first reactor and end determine contact；
Described transition branch road includes that the second moving contact being sequentially connected with, second switch, the second reactor and described end determine contact；
Described first moving contact and the second moving contact are slidably connected with shunting tap respectively.
3. test platform as claimed in claim 2, it is characterised in that described shunting tap includes head end shunting tap and end
Shunting tap；Described head end shunting tap is arranged on the connection end of described tap-changing windings and single-phase transformer, and described end tap is taken out
Head is arranged on the other end of described tap-changing windings；
Described head end shunting tap accesses the first bushing, and described end is determined contact and accessed the second bushing.
4. test platform as claimed in claim 1, it is characterised in that described partial discharge model includes the high pressure being provided with spring
Electrode；Described high-field electrode contacts connection by spring-compressed with described high pressure connection.
5. test platform as claimed in claim 1, it is characterised in that the welding of described sealed cylindrical is arranged on described transformer oil
In the top window of case；The top of described sealed cylindrical is higher than the liquid level in installation for transformer, so that being placed and taken out described office
Leakage of oil is there is not during portion's discharging model.
6. test platform as claimed in claim 1, it is characterised in that described high pressure connection includes being welded on a wire one end
On copper coin；The other end of described wire is connected with the middle part of described single-phase transformer mesohigh winding；
Described copper coin is the most smooth copper coin in surface and edge.
7. use the method that the test platform described in any one of claim 1-6 carries out Transformer Winding local pyrexia test, its step
Suddenly:
Step 11: linked reactor between the first bushing and the second bushing；
Step 12: to the low pressure winding power of single-phase transformer；
Step 13: adjust the value of described reactor, changes the short circuit current in tap-changing windings, thus changes described tap-changing windings
Temperature.
8. use the test platform described in any one of claim 1-6 to the method for power electrical apparatus, the steps include:
Step 21: linked reactor between the first bushing and the second bushing, by described electrical equipment and described reactance
Device is connected in series；
Step 22: to the low pressure winding power of single-phase transformer；
Step 23: adjust the value of described reactor, thus adjust the magnitude of voltage exported to described electrical equipment；
Described test platform to the rated voltage that the voltage max of power electrical apparatus is described single-phase transformer mesohigh winding,
Current value is the short circuit current in tap-changing windings.
9. use the method that the test platform described in any one of claim 1-6 carries out Transformer Winding partial discharge test, its side
Method is:
Partial discharge model is put into inside transformer along sealed cylindrical so that the spring of partial discharge model mesohigh electrode is with high
The copper coin of crimp head is in close contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349784.3A CN106324444B (en) | 2015-06-23 | 2015-06-23 | Transformer test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349784.3A CN106324444B (en) | 2015-06-23 | 2015-06-23 | Transformer test platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106324444A true CN106324444A (en) | 2017-01-11 |
| CN106324444B CN106324444B (en) | 2020-07-24 |
Family
ID=57728976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510349784.3A Active CN106324444B (en) | 2015-06-23 | 2015-06-23 | Transformer test platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106324444B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576850A (en) * | 2017-09-07 | 2018-01-12 | 国家电网公司江苏省电力公司扬州供电公司 | Transformer Bushing Tap Insulation test distributed control device |
| CN108414876A (en) * | 2018-03-21 | 2018-08-17 | 广东电网有限责任公司电力科学研究院 | A kind of transformer insulated pilot system |
| CN109061424A (en) * | 2018-09-17 | 2018-12-21 | 重庆大唐国际武隆水电开发有限公司 | A kind of transformer winding Partial Discharge Sources electrical Location method |
| CN110768212A (en) * | 2019-10-25 | 2020-02-07 | 南方电网科学研究院有限责任公司 | Transformer internal short-circuit fault protection device and control method thereof |
| CN111610413A (en) * | 2020-05-19 | 2020-09-01 | 保定天威新域科技发展有限公司 | Discharge generator for simulating turn-to-turn insulation breakdown of transformer winding |
| CN112834883A (en) * | 2021-01-06 | 2021-05-25 | 国网浙江省电力有限公司电力科学研究院 | Built-in transformer partial discharge model |
| CN113325209A (en) * | 2020-12-02 | 2021-08-31 | 吴江变压器有限公司 | Design method of temporary sleeve outgoing line for transformer test |
| CN114740246A (en) * | 2022-03-25 | 2022-07-12 | 苏州熠品质量技术服务有限公司 | Automatic measuring device for working voltage of transformer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008145301A (en) * | 2006-12-11 | 2008-06-26 | Kansai Electric Power Co Inc:The | Partial discharge detection method and detector |
| CN102692587A (en) * | 2012-06-12 | 2012-09-26 | 杭州西湖电子研究所 | Method for simulating and detecting discharging inside GIS (gas insulated switchgear) |
| CN202929160U (en) * | 2012-10-16 | 2013-05-08 | 中国电力科学研究院 | Transformer on-site partial discharge test compensation measuring apparatus |
| CN103592546A (en) * | 2013-11-21 | 2014-02-19 | 杭州西湖电子研究所 | Method for simulating faults of power transformer |
-
2015
- 2015-06-23 CN CN201510349784.3A patent/CN106324444B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008145301A (en) * | 2006-12-11 | 2008-06-26 | Kansai Electric Power Co Inc:The | Partial discharge detection method and detector |
| CN102692587A (en) * | 2012-06-12 | 2012-09-26 | 杭州西湖电子研究所 | Method for simulating and detecting discharging inside GIS (gas insulated switchgear) |
| CN202929160U (en) * | 2012-10-16 | 2013-05-08 | 中国电力科学研究院 | Transformer on-site partial discharge test compensation measuring apparatus |
| CN103592546A (en) * | 2013-11-21 | 2014-02-19 | 杭州西湖电子研究所 | Method for simulating faults of power transformer |
Non-Patent Citations (1)
| Title |
|---|
| 佚名: "有载可调变压器的工作原理", 《个人图书馆WWW.360DOC.COM/CONTENT/11/1227/21/7833070_175445011.SHTML》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576850A (en) * | 2017-09-07 | 2018-01-12 | 国家电网公司江苏省电力公司扬州供电公司 | Transformer Bushing Tap Insulation test distributed control device |
| CN107576850B (en) * | 2017-09-07 | 2024-02-09 | 国网江苏省电力有限公司扬州供电分公司 | Insulation test sub-control device for transformer bushing end screen |
| CN108414876A (en) * | 2018-03-21 | 2018-08-17 | 广东电网有限责任公司电力科学研究院 | A kind of transformer insulated pilot system |
| CN109061424A (en) * | 2018-09-17 | 2018-12-21 | 重庆大唐国际武隆水电开发有限公司 | A kind of transformer winding Partial Discharge Sources electrical Location method |
| CN110768212A (en) * | 2019-10-25 | 2020-02-07 | 南方电网科学研究院有限责任公司 | Transformer internal short-circuit fault protection device and control method thereof |
| CN110768212B (en) * | 2019-10-25 | 2021-09-03 | 南方电网科学研究院有限责任公司 | Transformer internal short-circuit fault protection device and control method thereof |
| CN111610413A (en) * | 2020-05-19 | 2020-09-01 | 保定天威新域科技发展有限公司 | Discharge generator for simulating turn-to-turn insulation breakdown of transformer winding |
| CN111610413B (en) * | 2020-05-19 | 2022-03-18 | 保定天威新域科技发展有限公司 | Discharge generator for simulating turn-to-turn insulation breakdown of transformer winding |
| CN113325209A (en) * | 2020-12-02 | 2021-08-31 | 吴江变压器有限公司 | Design method of temporary sleeve outgoing line for transformer test |
| CN112834883A (en) * | 2021-01-06 | 2021-05-25 | 国网浙江省电力有限公司电力科学研究院 | Built-in transformer partial discharge model |
| CN114740246A (en) * | 2022-03-25 | 2022-07-12 | 苏州熠品质量技术服务有限公司 | Automatic measuring device for working voltage of transformer |
| CN114740246B (en) * | 2022-03-25 | 2023-01-31 | 苏州熠品质量技术服务有限公司 | Automatic measuring device for working voltage of transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106324444B (en) | 2020-07-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106324444A (en) | Transformer test platform | |
| CN104569724A (en) | Transformer short-circuit fault comprehensive diagnosis method | |
| CN108089038B (en) | Test device and method for analyzing influence of winding defect heating on oil paper insulation performance | |
| CN201319064Y (en) | Test circuit for field accuracy detection of high-voltage current transformer | |
| CN108828439B (en) | Method and system for simulating and diagnosing transition resistance fault of on-load tap-changer | |
| CN101424728A (en) | On site precision detecting test line for high-voltage current transformer | |
| CN103760448A (en) | Comprehensive live test method of insulation defects of metal oxide arrester for electric power | |
| CN111650536A (en) | GIS conductor contact part through-flow test device and method | |
| CN102645596B (en) | High-voltage and high-current composite thermally stable test method and device for high-voltage casing pipe | |
| CN207798935U (en) | Current transformer calibration device in integrated GIS pipelines | |
| CN103558536A (en) | Circuit for testing overload tolerance capacity of series capacitor and working method of circuit | |
| Yan et al. | Bidirectional field–circuit coupling analysis of converter transformer inter‐tap short‐circuit faults in on‐load tap changers | |
| CN103941216B (en) | Voltage transformer scene Automatic Check-out And Readiness Equipment | |
| Behjat et al. | An experimental approach for investigating low-level interturn winding faults in power transformers | |
| Li et al. | Impact analysis of the capacitive coupling sensor on bushing external insulation | |
| CN107861012A (en) | A kind of through-flow device of high-power transformer | |
| CN112526292A (en) | Distribution cable operation quality examination and test platform | |
| CN106501619A (en) | Core loss pilot system and method between a kind of lamination under short trouble | |
| Xian et al. | Identification method of interturn short circuit fault for distribution transformer based on power loss variation | |
| CN107255776B (en) | Winding major insulation dielectric spectrum testing system in different transformer oil | |
| CN209486281U (en) | A kind of three-phase mutual inductor simulation linked network detection system | |
| CN204556744U (en) | The detection platform of a kind of APF of 380V electric pressure | |
| CN203858354U (en) | On-site automatic detector for voltage transformer | |
| CN203502551U (en) | Circuit capable of testing overloading tolerance capability of capacitors connected in series | |
| Colla et al. | Autotransformers evolution, reliability, safety and modelling in the Italian transmission grid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |