CN106501619A - Core loss pilot system and method between a kind of lamination under short trouble - Google Patents
Core loss pilot system and method between a kind of lamination under short trouble Download PDFInfo
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- CN106501619A CN106501619A CN201611268001.XA CN201611268001A CN106501619A CN 106501619 A CN106501619 A CN 106501619A CN 201611268001 A CN201611268001 A CN 201611268001A CN 106501619 A CN106501619 A CN 106501619A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2688—Measuring quality factor or dielectric loss, e.g. loss angle, or power factor
- G01R27/2694—Measuring dielectric loss, e.g. loss angle, loss factor or power factor
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- Power Engineering (AREA)
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- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Core loss pilot system and method between a kind of lamination under short trouble, belongs to transformer fault simulation technical field.The pilot system of the present invention mainly includes：Computer, rewinding material test platform, artificial intelligence folder, pressure regulator and power analyzer.Open circuit loss experimental study under short trouble between piece can be carried out based on the pilot system of the present invention.Of the invention compared with existing analogue technique, technique effect is：The loss test on transformator difference short-circuit piece number, iron core between various location piece under short trouble can automatically be realized by computer controls, experimental data can directly pass computer back simultaneously, there is intelligent operation, the features such as sensitivity is high, can effectively study Dissipation change and failure mechanism between piece under short trouble, failure coping strategy etc..
Description
Technical field
The invention belongs to the field tests of transformer fault, short trouble between more particular to a kind of Transformer Core Sheet
Under transformer loss pilot system, further relate to the measuring method of the system.
Background technology
Transformator used as one of nucleus equipment in power system and tractive power supply system, close by its stability and reliability
It is tied to the normal operation of whole system.Find according to the Accident of Transformer statistical analysiss to 110kV and ratings above, by insulation fault
Caused Accident of Transformer accounts for more than the 50% of total accident, and wherein between piece, short trouble is exactly a kind of typical exhausted in failure unshakable in one's determination
Reason hinders.Between generation piece unshakable in one's determination during short circuit, failure circulation can be formed between short-circuit stalloy under the sensing of main flux, and then be caused
The increase of open circuit loss unshakable in one's determination.When serious, fault zone further expands, and can destroy iron core and winding insulation, or even melt folded
Piece, burns iron core.It is therefore desirable to probed between piece by short-circuit fault simulation test between Transformer Core Sheet short trouble with
The relatedness of core loss, studies its failure genesis mechanism, so as to provide reference for Practical Project.
Loss test between existing under short-circuit fault simulation and failure is mainly limited to and stalloy is carried out between piece
Short-circuit test or in transformer core surface scolding tin to realize between piece short circuit and then be tested, there is following asking in these methods
Topic：Short trouble between stalloy short-circuit test simulation piece, it is impossible to truly occur between piece on reflection transformer core diverse location
Fault harm when short-circuit, does not have universality hence for the research being lost under short trouble between piece；And to transformator table
Face scolding tin can affect the loss distribution in iron core at surface, and then affect loss size, and therefore result of the test lacks effectively
Property；And test operation is mainly manual operation, easily slip up, with larger error.
In addition, the object of above research method, it is confined to laminated core transformator more, between Wound iron-core transformer lamination
The research of short trouble is also less, and the application with Large Copacity Wound iron-core transformer in electric power system, for rewinding material piece
Between short circuit research that loss is affected also increasingly urgent, need rewinding material loss test system of the exploitation based on short trouble between piece
System.
Content of the invention
It is an object of the invention to provide the transformer loss pilot system between a kind of Transformer Core Sheet under short trouble, with
Determine transformer core and the pass between different short-circuit piece numbers and diverse location piece in terms of short trouble and open circuit loss unshakable in one's determination occurs
Connection property.
It is a further object to provide a kind of transformer loss based under short trouble between Transformer Core Sheet
The method of testing of pilot system.
For achieving the above object, the transformer loss test system between a kind of Transformer Core Sheet of the invention under short trouble
System, mainly includes:Computer, rewinding material test platform, artificial intelligence folder, pressure regulator and power analyzer composition, wherein,
Rewinding material test platform includes：Transformator rewinding material, high-tension coil and low-voltage coil；High-tension coil is located at transformator rewinding material
On the stem stem of left side, it is connected with pressure regulator by power analyzer, low-voltage coil is located on the right side stem stem of transformator rewinding material, examination
Light Condition is set to when testing；Computer is communicated by RS485 with power analyzer and artificial intelligence folder；Artificial intelligence
Folder specifically includes commutator, clamping plate, studdle, nut, collets, copper sheet, electromagnetic relay and single-chip microcomputer；Intelligent mould
Intend folder clamping plate inside be provided with altogether six rows, 18 collets, often arrange from left to right be numbered successively position a, b, c, d,
e、f；Collets one end covers the copper sheet of a piece of 10mm × 10mm, and the other end is connected with electromagnetic relay, electromagnetic relay and
Single-chip microcomputer and commutator are connected, and single-chip microcomputer is connected with computer.
The method of testing of the transformer loss pilot system between the lamination of the present invention under short trouble, step are as follows：
The first step：Experimental provision wiring is connected according to wiring diagram.
Second step：Pressure regulator is adjusted, makes transformator rewinding material primary side voltage reach rated value.
3rd step：Using the real-time open circuit loss value in power analyzer measurement now transformator rewinding material and evanescent wave
Shape, and measurement data is uploaded to computer；
4th step：Position a, the lamination under 30 short-circuit piece numbers are automatically performed by computer instruction artificial intelligence folder
Between short circuit；
5th step：Open circuit loss value and the loss waveform in current transformer rewinding material is measured using power analyzer, and
Measurement data is uploaded to computer；
6th step：Repeat fourth, fifth step, complete a～f positions on iron core, the open circuit loss under 30-90 piece short-circuit piece numbers is surveyed
Amount is uploaded with data.
7th step：Lossy data under diverse location, different short-circuit piece numbers is completed to count by form, and does corresponding place
Reason.
The invention has the advantages that：
1) artificial intelligence folder is accommodated at the iron yoke of Wound iron-core transformer, can be simulated by computer controlled intelligent
Simulated failure between diverse location, the piece of different short-circuit piece numbers；
2) digital power analyser and computer communication, can obtain test under diverse location, different short-circuit piece number failures
Real-time loss measurement data be uploaded to computer；
3) core loss under diverse location, different short-circuit piece number failures is tested, determines the loss ginseng of the iron core
Number, is easy to analyze fault observer, further assesses malfunction.
Description of the drawings
Fig. 1 is hardware schematic in system of the invention
Fig. 2 is artificial intelligence folder inside structure figure in system of the invention
Fig. 3 is artificial intelligence folder sectional view in system of the invention
Fig. 4 is the Principle of Communication figure of the system of the present invention
Specific embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings：
As shown in figure 1, the transformer loss pilot system between a kind of lamination under short trouble, including computer 1, volume ferrum
Heart test platform 2, artificial intelligence folder 6, pressure regulator 7 and digital power analyser 8.Described rewinding material test platform 2 is wrapped
Include transformator rewinding material 3, high-tension coil 4 and low-voltage coil 5；High-tension coil 4 is located on the left side stem stem of transformator rewinding material 3,
It is connected with pressure regulator 7 by digital power analyser 8, low-voltage coil 5 is located on the right side stem stem of transformator rewinding material 3, test
When be set to Light Condition；
As shown in Figure 2 and Figure 3, described artificial intelligence folder 6 specifically include commutator 9, clamping plate 10, studdle 11,
Nut 12, collets 13, copper sheet 14, electromagnetic relay 15 and single-chip microcomputer 16；Inside the clamping plate 10 of artificial intelligence folder 6 altogether
Six rows, 18 collets 13 are provided with, are often arranged from left to right and is numbered position a, b, c, d, e, f successively；Cover 13 one end of collets
The copper sheet 14 of a piece of 10mm × 10mm (30 stalloys) thickness is covered, the other end is connected with electromagnetic relay 15, electromagnetism relay
Device 15 is connected with single-chip microcomputer 16 and commutator 9, and single-chip microcomputer 16 is connected with computer 1；
As shown in figure 4, computer 1 is communicated by RS485 with digital power analyser 8, digital power analyser 8 will
Lossy data under diverse location that test is obtained, different short-circuit piece number is uploaded to computer 1, and completes to count by computer 1
With process work；Computer 1 and artificial intelligence folder 6 are communicated by RS485, instruct the single-chip microcomputer inside artificial intelligence folder 6
16 ejections and contraction for making 15 action control collets 13 of electromagnetic relay, when 10 correspondence position of upper lower plate collets 13 with
When eject, the copper sheet 14 above which contact with unshakable in one's determination 3 realize short-circuit between lamination；One piece in same row's collets can be real
Existing 10mm
Short circuit between the piece of (30 stalloys), is stretched out by the same row's different insulative block 13 of control and can realize 10mm
Short circuit between the piece of (30 stalloys), 20mm (60 stalloys) and 30mm (90 stalloys), by control
Different row's collets stretch out short trouble between the piece that can achieve difference location of short circuit；All appts are complete by laboratory power supply (220V)
Into power supply, the 220V alternating currents of power supply are converted to unidirectional current by commutator, and then are powered to electromagnetic relay.
A kind of transformer loss test method between lamination under short trouble, step are as follows：
1) experimental provision wiring is connected according to wiring diagram；
2) pressure regulator 7 is adjusted, makes 3 primary side voltage of transformator rewinding material reach rated value；
3) real-time open circuit loss value and the loss waveform in now transformator rewinding material 3 is measured using power analyzer 8, and
Measurement data is uploaded to computer 1；
4) artificial intelligence folder 6 is instructed by computer 1 and is automatically performed position a, between the lamination under 30 short-circuit piece numbers
Short circuit；
5) open circuit loss in current transformer rewinding material 3 is measured using power analyzer 8, and measurement data is uploaded to
Computer；
6) repeat fourth, fifth step, complete a～f positions on iron core, the measurement of open circuit loss under 30-90 piece short-circuit piece numbers and
Data are uploaded；
7) lossy data under diverse location, different short-circuit piece numbers is completed to count by form, and does corresponding process.
Claims (3)
1. the core loss pilot system between a kind of lamination under short trouble, mainly includes:Computer (1), rewinding material test
Platform (2), artificial intelligence folder (6), pressure regulator (7) and power analyzer (8) composition, wherein, the rewinding material test is flat
Platform (2) includes：Transformator rewinding material (3), high-tension coil (4) and low-voltage coil (5)；High-tension coil (4) is located at transformator and rolls up ferrum
On the left side stem stem of the heart (3), it is connected with pressure regulator (7) by power analyzer (8), low-voltage coil (5) is located at transformator and rolls up ferrum
On the right side stem stem of the heart (3), Light Condition during test, is set to；Computer (1) and power analyzer (8) and artificial intelligence folder
(6) communicated by RS485.
2. the core loss pilot system between a kind of lamination according to claim 1 under short trouble, it is characterised in that：
Artificial intelligence folder (6) specifically include commutator (9), clamping plate (10), studdle (11), nut (12), collets
(13), copper sheet (14), electromagnetic relay (15) and single-chip microcomputer (16)；The clamping plate (10) of artificial intelligence folder (6) is internal altogether
Six rows, 18 collets (13) are provided with, are often arranged from left to right and is numbered position a, b, c, d, e, f successively, collets (13)
End covers copper sheet (14), and the other end is connected with electromagnetic relay (15), electromagnetic relay (15) and single-chip microcomputer (16) and rectification
Device (9) is connected, and single-chip microcomputer (16) is connected with computer (1).
3. the method for testing of the core loss pilot system between a kind of lamination according to described in claim 1 under short trouble,
Step is as follows：
The first step：Experimental provision wiring is connected according to wiring diagram；
Second step：Pressure regulator (7) is adjusted, makes transformator rewinding material (3) primary side voltage reach rated value；
3rd step：Using the real-time open circuit loss value in power analyzer (8) measurement now transformator rewinding material (3) and evanescent wave
Shape, and measurement data is uploaded to computer (1)；
4th step：Artificial intelligence folder (6) is instructed by computer (1) and is automatically performed position a, the iron core under 30 short-circuit piece numbers
Short circuit between piece；
5th step：Open circuit loss value and the loss waveform in current transformer rewinding material (3) is measured using power analyzer (8),
And measurement data is uploaded to computer (1)；
6th step：Repeat fourth, fifth step, complete a on iron core, b, c, d, e, f position, the unloaded damage under 30-90 piece short-circuit piece numbers
Consumption measurement is uploaded with data；
7th step：Lossy data under diverse location, different short-circuit piece numbers is completed to count by form, and does corresponding process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611268001.XA CN106501619B (en) | 2016-12-31 | 2016-12-31 | Core loss pilot system and method between a kind of lamination under short trouble |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611268001.XA CN106501619B (en) | 2016-12-31 | 2016-12-31 | Core loss pilot system and method between a kind of lamination under short trouble |
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| CN106501619A true CN106501619A (en) | 2017-03-15 |
| CN106501619B CN106501619B (en) | 2018-04-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807340A (en) * | 2017-10-16 | 2018-03-16 | 武汉钢铁有限公司 | A kind of silicon steel laminations iron core performance simulation test platform |
| CN111931310A (en) * | 2020-08-28 | 2020-11-13 | 西南交通大学 | Method for evaluating eddy current loss of wound core interlayer short circuit in consideration of boundary conditions of different magnetic fields |
| WO2023179153A1 (en) * | 2022-03-25 | 2023-09-28 | 西安热工研究院有限公司 | Generator iron core loss test system and method for reducing test impulse current |
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| CN101477167A (en) * | 2008-01-01 | 2009-07-08 | 浙江广天变压器有限公司 | Voltage differential transformer turn-to-turn short circuit detection apparatus |
| CN103430017A (en) * | 2011-02-11 | 2013-12-04 | 西门子能量股份有限公司 | Fault detection for laminated core |
| CN103592546A (en) * | 2013-11-21 | 2014-02-19 | 杭州西湖电子研究所 | Method for simulating faults of power transformer |
| CN103730241A (en) * | 2013-12-25 | 2014-04-16 | 保定天威保变电气股份有限公司 | Transformer model for direct-current magnetic biasing test |
| CN104198936A (en) * | 2014-08-18 | 2014-12-10 | 广东电网公司电力科学研究院 | Device and method for detecting insulation damage faults between tooth blades of large generator stator core based on electromagnetic induction |
| CN106093669A (en) * | 2016-08-24 | 2016-11-09 | 山东鲁能泰山电力设备有限公司 | The experimental provision of a kind of analogue transformer short circuit and method |
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2016
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101477167A (en) * | 2008-01-01 | 2009-07-08 | 浙江广天变压器有限公司 | Voltage differential transformer turn-to-turn short circuit detection apparatus |
| CN103430017A (en) * | 2011-02-11 | 2013-12-04 | 西门子能量股份有限公司 | Fault detection for laminated core |
| CN103592546A (en) * | 2013-11-21 | 2014-02-19 | 杭州西湖电子研究所 | Method for simulating faults of power transformer |
| CN103730241A (en) * | 2013-12-25 | 2014-04-16 | 保定天威保变电气股份有限公司 | Transformer model for direct-current magnetic biasing test |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807340A (en) * | 2017-10-16 | 2018-03-16 | 武汉钢铁有限公司 | A kind of silicon steel laminations iron core performance simulation test platform |
| CN107807340B (en) * | 2017-10-16 | 2021-04-06 | 武汉钢铁有限公司 | Silicon steel lamination core performance simulation test platform |
| CN111931310A (en) * | 2020-08-28 | 2020-11-13 | 西南交通大学 | Method for evaluating eddy current loss of wound core interlayer short circuit in consideration of boundary conditions of different magnetic fields |
| WO2023179153A1 (en) * | 2022-03-25 | 2023-09-28 | 西安热工研究院有限公司 | Generator iron core loss test system and method for reducing test impulse current |
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| Publication number | Publication date |
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| CN106501619B (en) | 2018-04-13 |
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