CN106501619B - 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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- CN106501619B CN106501619B CN201611268001.XA CN201611268001A CN106501619B CN 106501619 B CN106501619 B CN 106501619B CN 201611268001 A CN201611268001 A CN 201611268001A CN 106501619 B CN106501619 B CN 106501619B
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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, belong 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.Pilot system based on the present invention can carry out no-load loss experimental study under short trouble between piece.It is of the invention compared with existing analogue technique, technique effect is：The different short-circuit the piece number of transformer can automatically be realized by computer control, the loss test on iron core at diverse location between piece under short trouble, experimental data can directly pass computer back at the same time, there is intelligent operation, high sensitivity, can effectively study Dissipation change and failure mechanism, failure countermeasure etc. between piece under short trouble.
Description
Technical field
The invention belongs to the testing field of transformer fault, more particular to short trouble between a kind of Transformer Core Sheet
Under transformer loss pilot system, further relate to the measuring method of the system.
Background technology
Transformer is closed as one of core equipment in electric system and tractive power supply system, its stability and reliability
It is the normal operation to whole system.Found according to the Accident of Transformer statistical analysis to 110kV and ratings above, by insulation fault
Caused Accident of Transformer accounts for more than the 50% of total accident, and short trouble is exactly a kind of typical exhausted in iron core failure wherein between piece
Reason hinders.Between iron core generation piece during short circuit, failure circulation can be formed between short-circuit silicon steel sheet under the sensing of main flux, and then cause
The increase of iron core no-load loss.When serious, fault zone further expands, and can destroy iron core and winding insulation, or even melts folded
Piece, burns iron core.It is therefore desirable to by short-circuit fault simulation experiment between Transformer Core Sheet come probe between piece short trouble with
The relevance 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 carry out piece to silicon steel sheet
Short-circuit test or in transformer core surface scolding tin to realize short circuit between piece and then be tested, these methods are asked there are following
Topic：Short trouble between silicon steel sheet short-circuit test simulation piece, can not truly reflect on transformer core diverse location between generation piece
Fault harm when short-circuit, does not have generality hence for the research being lost under short trouble between piece；And to transformer table
Face scolding tin can influence to lean on the loss distribution near surface in iron core, and then influence loss size, therefore result of the test lacks effectively
Property；And test operation is predominantly manually operated, easily error, has large error.
In addition, the object of above research method is confined to laminated core transformer more, between Wound iron-core transformer lamination
The research of short trouble is also less, and the application with large capacity Wound iron-core transformer in electric power system, for rewinding material piece
Between the research that is influenced loss of short circuit it is also increasingly urgent, it is necessary to develop the rewinding material loss test system based on short trouble piece
System.
The content of the invention
The object of the present invention is to provide the transformer loss pilot system under short trouble between a kind of Transformer Core Sheet, with
Measure transformer core and pass between different short-circuit the piece numbers and diverse location piece in terms of short trouble and iron core no-load loss occurs
Connection property.
It is a further object to provide a kind of transformer loss based under short trouble between Transformer Core Sheet
The test method of pilot system.
To achieve the above object, the transformer loss experiment 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：Transformer rewinding material, high-tension coil and low-voltage coil；High-tension coil is located at transformer rewinding material
On the stem of left side, it is connected by power analyzer with pressure regulator, low-voltage coil is located on the right side stem of transformer rewinding material, examination
Light condition is arranged to when testing；Computer is communicated with power analyzer and artificial intelligence folder by RS485；Artificial intelligence
Folder specifically includes rectifier, clamping plate, studdle, nut, collets, copper sheet, electromagnetic relay and microcontroller；Intelligent mould
Intend folder clamping plate inside be provided with six rows, 18 collets altogether, often arrange from left to right successively marked as 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
Microcontroller and rectifier are connected, and microcontroller is connected with computer.
The test method of 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, transformer rewinding material primary side voltage is reached rated value.
3rd step：Utilize the real-time no-load loss value and evanescent wave in power analyzer measurement at this time transformer rewinding material
Shape, and measurement data is uploaded to computer；
4th step：Position a is automatically performed by computer instruction artificial intelligence folder, the lamination under 30 short-circuit the piece numbers
Between short circuit；
5th step：The no-load loss value and loss waveform in current transformer rewinding material are measured using power analyzer, and
Measurement data is uploaded to computer；
6th step：Fourth, fifth step is repeated, completes a~f positions on iron core, the no-load loss under 30-90 piece short circuit the piece numbers is surveyed
Amount is uploaded with data.
7th step：Lossy data under diverse location, different short-circuit the 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 the piece of the short-circuit the piece number of diverse location, difference；
2) digital power analyzer and computer communication, can obtain experiment under diverse location, different short-circuit the piece number failures
Real-time loss measurement data be uploaded to computer；
3) core loss under diverse location, different short-circuit the piece number failures is tested, measures the loss ginseng of the iron core
Number, easy to analyze fault observer, further assesses malfunction.
Brief 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
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 iron
Heart test platform 2, artificial intelligence folder 6, pressure regulator 7 and digital power analyzer 8.The rewinding material test platform 2 wraps
Include transformer rewinding material 3, high-tension coil 4 and low-voltage coil 5；High-tension coil 4 is located on the left side stem of transformer rewinding material 3,
It is connected by digital power analyzer 8 with pressure regulator 7, low-voltage coil 5 is located on the right side stem of transformer rewinding material 3, experiment
When be arranged to light condition；
As shown in Figure 2 and Figure 3, the artificial intelligence folder 6 specifically include rectifier 9, clamping plate 10, studdle 11,
Nut 12, collets 13, copper sheet 14, electromagnetic relay 15 and microcontroller 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 successively marked as position a, b, c, d, e, f；Cover 13 one end of collets
The copper sheet 14 of a piece of 10mm × 10mm (30 silicon steel sheets) thickness is covered, the other end is connected with electromagnetic relay 15, electromagnetism relay
Device 15 is connected with microcontroller 16 and rectifier 9, and microcontroller 16 is connected with computer 1；
As shown in figure 4, computer 1 is communicated with digital power analyzer 8 by RS485, digital power analyzer 8 will
The lossy data tested under obtained diverse location, different short-circuit the piece numbers is uploaded to computer 1, and completes to count by computer 1
With handling work；Computer 1 and artificial intelligence folder 6 are communicated by RS485, the microcontroller inside instruction artificial intelligence folder 6
16 make the pop-up and contraction of 15 action control collets 13 of electromagnetic relay, when the collets 13 of upper 10 correspondence position of lower clamp plate are same
When eject, the copper sheet 14 above it is contacted with iron core 3 realizes short circuit between lamination；Same one piece in the block of row's insulation can be real
Existing 10mm
It is short-circuit between the piece of (30 silicon steel sheets), it can realize 10mm by controlling same row's different insulative block 13 to stretch out
It is short-circuit between the piece of (30 silicon steel sheets), 20mm (60 silicon steel sheets) and 30mm (90 silicon steel sheets), pass through control
Difference row's collets stretch out short trouble between the piece that different location of short circuit can be achieved；All appts are complete by laboratory power supply (220V)
Into power supply, the 220V alternating currents of power supply are converted to direct current by rectifier, 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, 3 primary side voltage of transformer rewinding material is reached rated value；
3) the real-time no-load loss value and loss waveform in transformer rewinding material 3 at this time are measured using power analyzer 8, and
Measurement data is uploaded to computer 1；
4) artificial intelligence folder 6 is instructed to be automatically performed position a by computer 1, between the lamination under 30 short-circuit the piece numbers
Short circuit；
5) no-load 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, no-load loss measurement under 30-90 piece short circuit the piece numbers and
Data upload；
7) lossy data under diverse location, different short-circuit the piece numbers is completed to count by form, and does corresponding processing.
Claims (2)
1. the core loss pilot system between a kind of lamination under short trouble, mainly includes:Computer (1), rewinding material experiment
Platform (2), artificial intelligence folder (6), pressure regulator (7) and power analyzer (8) composition, wherein, the rewinding material experiment is flat
Platform (2) includes：Transformer rewinding material (3), high-tension coil (4) and low-voltage coil (5)；High-tension coil (4) is located at transformer volume iron
On the left side stem of the heart (3), it is connected by power analyzer (8) with pressure regulator (7), low-voltage coil (5) is located at transformer volume iron
On the right side stem of the heart (3), when experiment, is arranged to light condition；Computer (1) and power analyzer (8) and artificial intelligence folder
(6) communicated by RS485；
It is characterized in that：The artificial intelligence folder (6) specifically includes rectifier (9), clamping plate (10), studdle (11), spiral shell
Cap (12), collets (13), copper sheet (14), electromagnetic relay (15) and microcontroller (16)；The clamping plate of artificial intelligence folder (6)
(10) it is internal to be provided with six rows, 18 collets (13) altogether, often arrange from left to right successively marked as position a, b, c, d, e, f,
Collets (13) one end covering copper sheet (14), the other end are connected with electromagnetic relay (15), electromagnetic relay (15) and monolithic
Machine (16) and rectifier (9) are connected, and microcontroller (16) is connected with computer (1).
2. a kind of test method of the core loss pilot system between lamination described in accordance with the 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, transformer rewinding material (3) primary side voltage is reached rated value；
3rd step：Utilize the real-time no-load loss value and evanescent wave in power analyzer (8) measurement at this time transformer rewinding material (3)
Shape, and measurement data is uploaded to computer (1)；
4th step：Artificial intelligence folder (6) is instructed to be automatically performed position a by computer (1), the iron core under 30 short-circuit the piece numbers
It is short-circuit between piece；
5th step：Using the no-load loss value in power analyzer (8) measurement current transformer rewinding material (3) with waveform is lost,
And measurement data is uploaded to computer (1)；
6th step：Fourth, fifth step is repeated, completes a, b, c on iron core, d, e, f positions, the unloaded damage under 30-90 piece short circuit the piece numbers
Consumption measurement is uploaded with data；
7th step：Lossy data under diverse location, different short-circuit the piece numbers is completed to count by form, and does corresponding processing.
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| Application Number | Priority Date | Filing Date | Title |
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| 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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| 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 CN106501619A (en) | 2017-03-15 |
| CN106501619B true CN106501619B (en) | 2018-04-13 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807340B (en) * | 2017-10-16 | 2021-04-06 | 武汉钢铁有限公司 | Silicon steel lamination core performance simulation test platform |
| CN111931310B (en) * | 2020-08-28 | 2021-08-13 | 西南交通大学 | Method for evaluating eddy current loss of wound core interlayer short circuit by considering dissimilar magnetic edge values |
| CN114690095A (en) * | 2022-03-25 | 2022-07-01 | 西安热工研究院有限公司 | Generator core loss test system and method for reducing test impact 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
- 2016-12-31 CN CN201611268001.XA patent/CN106501619B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN106501619A (en) | 2017-03-15 |
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