CN106707064A - Research platform of relevance between radial pressure and frequency response of winding and experiment method thereof - Google Patents
Research platform of relevance between radial pressure and frequency response of winding and experiment method thereof Download PDFInfo
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- CN106707064A CN106707064A CN201611267949.3A CN201611267949A CN106707064A CN 106707064 A CN106707064 A CN 106707064A CN 201611267949 A CN201611267949 A CN 201611267949A CN 106707064 A CN106707064 A CN 106707064A
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- winding
- frequency response
- radial direction
- pressure
- support
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a research platform of relevance between radial pressure and frequency response of a winding and an experiment method thereof. The research platform comprises a winding support device, a winding, a casing pipe, a box body and a frequency response tester, wherein the winding (6) is led out of the box body through the casing pipe (10) and is electrically connected with the frequency response tester (13); a computer (14) is used for controlling the frequency response tester (13) to measure frequency response of the winding under the current pressure; a variable-diameter inner support body is arranged on a fixing table (8) in the box body (9); the winding (6) of a cake type ring-shaped structure formed by stacking wire cakes can be wound on the variable-diameter inner support body; the wire cakes are connected with each other in series; the head end and the tail end of the winding (6) are connected out of the box body (9) through the casing pipe (10); a pressure sensor is arranged between the winding and a support arc-shaped surface; bar-shaped gears are controlled to rotate and enable a support rod to radially move; a display module is used for displaying pressure signals of the pressure sensor. The research platform is capable of effectively simulating the change of the frequency response of the winding under different radial pressures; the research platform can be applied to research and can also actually provide a reference for engineering.
Description
Technical field
The invention belongs to transformer fault simulation technical field, and in particular to winding radial pressure and frequency response relevance
Research platform and test method.
Background technology
Transformer used as one of nucleus equipment in power system and tractive power supply system, close by its stability and reliability
The normal operation of whole system is tied to, short trouble is the most commonly seen failure of transformer, when transformer is short-circuited failure,
Winding can produce very big electromagnetic force in the presence of short circuit current and internal magnetic field, winding can be caused to produce mechanically deform, most
Transformer is destroyed eventually.
Transformer Winding can regard Passive Two-Port Network as, and it can be characterized with distributed inductance, resistance, electric capacity, when this
When a little parameters change, the frequency response at winding first and last end will produce change, and short-circuit impact will not be damaged immediately
Property failure, it may occur that micro-strain, and it is this deformation have cumulative effect, this can gradually cause winding equivalent inductance, resistance, electricity
Hold change, therefore deformation of transformer winding degree can be detected by measuring winding frequency response change degree in on-the-spot test.
At present, winding frequency response is studied, it usually needs mechanically deform is caused to winding, the method cannot study winding and exist
Deformation early stage, that is, the variation tendency that winding frequency response during micro-strain occurs, and its quantitative relationship between radial force.
The content of the invention
The present invention in view of the shortcomings of the prior art, proposes winding radial pressure and frequency response relevance research platform
With test method, to probe into the situation of change of Transformer Winding impedance when different radial loads are born, its have it is easy to operate,
The features such as sensitivity is high, can effectively study the variation relation of radial load and winding frequency response curve, so as to be actual work
Journey provides reference.
The present invention use technical solution be：
Winding radial pressure and frequency response relevance research platform, mainly by casing 9, the fixed station being placed in casing 98
On reducing inner supporting body, winding 6, sleeve pipe 10, casing 9, frequency sound test instrument 13, computer 14 and in reducing prop up
Winding 6 on support body is constituted；Winding 6 is external by the outlet box of sleeve pipe 10, and is electrically connected with frequency sound test instrument 13, computer 14
Control frequency sound test instrument 13 completes the winding frequency response measurement under current pressure；The reducing inner supporting body is placed in casing 9
8 on fixed station；The winding 6 of the cake formula cyclic structure for being formed is stacked by line cake on reducing inner supporting body, between line cake
Series connection, the first and last end of winding 6 picks out casing 9 by sleeve pipe 10.
The support tube 3 of the tubular of reducing inner supporting body is stood on fixed station 8, support tube 3 vertically have be distributed in difference
The radial direction support rod mechanism of horizontal plane, two strut groups of each radial direction support rod mechanism by vertical distribution in Different Plane are constituted；Each support
Bar group has two radial direction struts with opposite rack segments, and one end of radial direction strut is rack segments, its other end and supporting arc
Face 4 couples；Support cambered surface 4 is made up of the cylindrical drum side wall of four quadrants, four cylindrical drums of quadrant
Termination of the side wall respectively with four radial direction struts of the radial direction support rod mechanism in same level face couples；Top has the bar shaped of capstan 11
Gear 1 is placed on the center of fixed station 8, and bar shaped gear 1 passes through each radial direction support rod mechanism, the rack segments with each radial direction strut to nibble
Close, turn capstan 11 makes bar shaped gear 1 drive each radial direction strut to make radial motion through support tube 3, changes the footpath of support cambered surface
To position；
Support cambered surface 4 uses aluminium sheet to simulate the high frequency capacitance effect of iron core, and ring is set between support cambered surface 4 and winding 6
Oxygen tree fat material simulation insulating barrier 5, pressure sensor 15 is placed between winding 6 and epoxide resin material analog insulation layer 5, is pressed
Force snesor 15 is connected with display module 12.
Bar shaped gear 1 uses steel material with radial direction strut (211,212,221,222), and its end is provided with gear, footpath
It is placed on support tube 3 to strut (211,212,221,222), support tube 3 is cylindrical shape, inside is made up of several supporting surfaces,
Fixing groove is provided with supporting surface, radial direction strut (211,212) staggers and is embedded in two supporting surfaces up and down with radial direction strut (221,222)
Fixing groove in.
Described support cambered surface 4 uses aluminium sheet, simulates high frequency capacitance effect unshakable in one's determination, and each support cambered surface 4 size is 1/4
Circular arc, each support cambered surface 4 is connected with a radial direction strut (211,212,221,222).Epoxide resin material analog insulation layer)
Structure to support cambered surface 4 it is similar, be also made up of the cylindrical drum side wall of four quadrants.
Capstan by rotating top of the invention, applies stress, on bar shaped gear driven support tube to bar shaped gear
Several radial direction struts are moved radially, and apply radial pressure in face of winding by the supporting arc being connected with radial direction strut, and pass through
Pressure sensor in support cambered surface draws the size of suffered radial pressure, and the frequency sound test instrument of outside draws different radial directions
Winding impedance size under pressure.
The present invention also aims to provide a kind of winding radial pressure and frequency response relevance for the studies above platform
Test method, comprises the following steps：
1) winding 6 is connected by sleeve pipe 10 with frequency sound test instrument 13, and frequency sound test instrument 13 is connected with computer 14；
2) rotating capstan 11 drives radial direction strut to move radially, and makes the radial force of winding 6, is read by display module 12 and pressed
Power size；
3) capstan 11 is fixed, is controlled frequency sound test instrument 13 to carry out the winding frequency response under current pressure by computer 14 and is surveyed
Amount；
4) repeat step 1 and 2, counting and obtain ringing curve around class frequency under different pressures, and calculate coefficient correlation is carried out
Analysis.
Winding frequency response that can be under the different radial pressures of analogue measurement based on platform of the present invention and test method.
Brief description of the drawings
Fig. 1 is the general structure schematic diagram of the embodiment of the present invention；
Fig. 2 is the bar shaped gear and radial direction strut and support tube graph of a relation of the embodiment of the present invention；
Fig. 3 is the reducing inner supporting body top view of the embodiment of the present invention.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail：
As shown in figure 1, winding radial pressure and frequency response relevance research platform and test method, mainly include：Can
Reducing inner supporting body, winding 6, sleeve pipe 10, casing 9, frequency sound test instrument 13, computer 14.Branch in reducing is placed with casing 9
Support body, winding 6 is placed in 8 on fixed station on reducing inner supporting body, and winding 6 is pie winding, is connected between line cake
And supported by cushion block 7, the first and last end of winding 6 picks out casing 8 by sleeve pipe 9；Reducing inner supporting body is that a kind of radial pressure can
The device of tune, is made up of, footpath capstan 11, bar shaped gear 1, several radial direction struts (211,212,221,222) and support cambered surface 4
Acted on by gear and bar shaped gear 1 to strut (211,212,221,222) end；Radial direction strut (211,212,221,222)
Be connected with support cambered surface 4, winding 6 on winding epoxide resin material analog insulation layer 5, winding 6 and epoxide resin material
Pressure sensor 15 is placed between analog insulation layer 5, controlling bar shaped gear 1 to rotate by capstan 11 can make radial direction strut
(211,212,221,222) are moved radially, and the pressure signal on pressure sensor 15 is shown by display module 12.
Fig. 2 is bar shaped gear and radial direction strut and support tube graph of a relation, described bar shaped gear 1 and radial direction strut (211,
212nd, 221 steel material 222), is used, its end is provided with gear, and radial direction strut (211,212,221,222) is placed in support tube
On 3, support tube 3 is cylindrical shape, and inside is made up of several supporting surfaces, is provided with fixing groove on supporting surface, radial direction strut (211,
212) stagger be embedded in two fixing grooves of supporting surface up and down with radial direction strut (221,222), radial direction strut (211,212,221,
222) can coordinate with bar shaped gear 1 and be moved radially on support tube 3.
Fig. 3 is reducing inner supporting body top view, radial direction strut (211,212,221,222) other end connection support cambered surface
4, described support cambered surface 4 uses aluminium sheet, simulates high frequency capacitance effect unshakable in one's determination, and each support cambered surface 4 size is 1/4 circular arc,
Each support cambered surface 4 is connected with a radial direction strut (211,212,221,222), and bar shaped gear is controlled by the capstan 11 of top
Rotation, when stress is applied to capstan 11, bar shaped gear 1 drive on support tube 3 several radial direction struts (211,212,221,
222) move radially, winding 6 is applied radially to press by the support cambered surface 4 being connected with radial direction strut (211,212,221,222)
Power, and the size of different radial direction pressures is drawn on display module by supporting the pressure sensor 15 in cambered surface 4, pass through
Computer 14 controls the frequency sound test instrument 13 of outside to measure the winding frequency response drawn under different radial pressures.
When in use, key step is as follows for the present invention：
1) winding 6 is connected by sleeve pipe 10 with frequency sound test instrument 13, and frequency sound test instrument 13 is connected with computer 14；
2) rotating capstan 11 drives radial direction strut (211,212,221,222) to move radially, and makes the radial force of winding 6, leads to
Cross display module 12 and read pressure size；
3) capstan 11 is fixed, is controlled frequency sound test instrument 13 to carry out the winding frequency response under current pressure by computer 14 and is surveyed
Amount；
4) repeat step 1 and 2, statistics draw winding average force size with it is corresponding in the case of winding frequency response song
Line, and calculated curve coefficient correlation is compared.
Claims (3)
1. winding radial pressure and frequency response relevance research platform, it is characterised in that it is main by casing (9), be placed in casing
(9) the reducing inner supporting body on fixed station (8), winding (6), sleeve pipe (10), casing (9), frequency sound test instrument (13), meter in
Calculation machine (14), winding (6) composition on reducing inner supporting body；Winding (6) draws casing (9) by sleeve pipe (10)
Outward, and with frequency sound test instrument (13) electrical connection, computer (14) control frequency sound test instrument (13) complete current pressure under around
Group frequency response measurement；On the fixed station that the reducing inner supporting body is placed in casing (9) (8)；The cake formula for being formed is stacked by line cake
The winding (6) of cyclic structure is connected on reducing inner supporting body between line cake, and is supported by cushion block (7), winding
(6) first and last end picks out casing (9) by sleeve pipe (10)；
The support tube (3) of the tubular of the reducing inner supporting body is stood on fixed station (8), and support tube (3) vertically has distribution
In the radial direction support rod mechanism of different level, each radial direction support rod mechanism by vertical distribution Different Plane two strut group structures
Into；Each strut group has two radial direction struts with opposite rack segments, and one end of radial direction strut is rack segments, its other end with
Support cambered surface (4) connection；Support cambered surface (4) is made up of the cylindrical drum side wall of four quadrants, four quadrants
Termination of the cylindrical drum side wall in week respectively with four radial direction struts of the radial direction support rod mechanism in same level face couples；Top has rotation
The bar shaped gear (1) of disk (11) is placed on the center of fixed station (8), bar shaped gear (1) through each radial direction support rod mechanism, with each footpath
Engaged to the rack segments of strut, turn capstan (11) makes bar shaped gear (1) drive each radial direction strut to make radially through support tube (3)
Motion, changes the radial position of support cambered surface；
Support cambered surface (4) uses aluminium sheet to simulate the high frequency capacitance effect of iron core, is set between support cambered surface (4) and winding (6)
Epoxide resin material analog insulation layer (5), is placed with pressure biography between winding (6) and epoxide resin material analog insulation layer (5)
Sensor (15), pressure sensor (15) is connected with display module (12).
2. research platform according to claim 1, it is characterised in that：Epoxide resin material analog insulation layer (5) is by four four
The cylindrical drum side wall of/mono- circumference is constituted.
3. using the winding radial pressure and frequency response relevance test method of research platform described in claim 1, including such as
Lower step：
1) winding (6) is connected by sleeve pipe (10) with frequency sound test instrument (13), and frequency sound test instrument (13) is connected with computer (14)；
2) rotating capstan (11) drives radial direction strut to move radially, and makes winding (6) radial force, is read by display module (12)
Pressure size；
3) capstan (11) is fixed, the winding frequency response under current pressure is carried out by computer (14) control frequency sound test instrument (13)
Measurement；
4) repeat step 1 and 2, statistics obtains ringing curve around class frequency under different pressures, and calculates coefficient correlation and be analyzed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611267949.3A CN106707064B (en) | 2016-12-31 | 2016-12-31 | Winding radial pressure and frequency response relevance research platform and its experimental method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611267949.3A CN106707064B (en) | 2016-12-31 | 2016-12-31 | Winding radial pressure and frequency response relevance research platform and its experimental method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106707064A true CN106707064A (en) | 2017-05-24 |
| CN106707064B CN106707064B (en) | 2018-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201611267949.3A Active CN106707064B (en) | 2016-12-31 | 2016-12-31 | Winding radial pressure and frequency response relevance research platform and its experimental method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376454A (en) * | 2019-06-23 | 2019-10-25 | 西南交通大学 | Winding radial deformation and oscillation wave relevance research platform and its test method |
| CN112922621A (en) * | 2021-03-09 | 2021-06-08 | 山东大学 | Diameter-variable shield tunneling machine cutter head and use method thereof |
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| US6466034B1 (en) * | 2001-05-29 | 2002-10-15 | Powertech Labs Inc. | Transformer winding movement detection by high frequency internal response analysis |
| JP2003194903A (en) * | 2001-12-28 | 2003-07-09 | Jfe Engineering Kk | Tensile force adding apparatus for measuring magnetism |
| CN101701995A (en) * | 2009-11-12 | 2010-05-05 | 重庆大学 | Impulse response analytical test apparatus and method for detecting deformation of transformer winding |
| KR20110053525A (en) * | 2009-11-16 | 2011-05-24 | 한국전기연구원 | Connection unit for diagnosis of transformer |
| CN104269269A (en) * | 2014-10-22 | 2015-01-07 | 成都众山科技有限公司 | Insulating layer assembly device |
| CN105526835A (en) * | 2015-10-08 | 2016-04-27 | 华北电力大学 | Simulated test platform for radial winding deformation of transformer |
| CN106199262A (en) * | 2016-07-04 | 2016-12-07 | 河南平高通用电气有限公司 | Coil pressure test device |
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2016
- 2016-12-31 CN CN201611267949.3A patent/CN106707064B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6466034B1 (en) * | 2001-05-29 | 2002-10-15 | Powertech Labs Inc. | Transformer winding movement detection by high frequency internal response analysis |
| JP2003194903A (en) * | 2001-12-28 | 2003-07-09 | Jfe Engineering Kk | Tensile force adding apparatus for measuring magnetism |
| CN101701995A (en) * | 2009-11-12 | 2010-05-05 | 重庆大学 | Impulse response analytical test apparatus and method for detecting deformation of transformer winding |
| KR20110053525A (en) * | 2009-11-16 | 2011-05-24 | 한국전기연구원 | Connection unit for diagnosis of transformer |
| CN104269269A (en) * | 2014-10-22 | 2015-01-07 | 成都众山科技有限公司 | Insulating layer assembly device |
| CN105526835A (en) * | 2015-10-08 | 2016-04-27 | 华北电力大学 | Simulated test platform for radial winding deformation of transformer |
| CN106199262A (en) * | 2016-07-04 | 2016-12-07 | 河南平高通用电气有限公司 | Coil pressure test device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376454A (en) * | 2019-06-23 | 2019-10-25 | 西南交通大学 | Winding radial deformation and oscillation wave relevance research platform and its test method |
| CN110376454B (en) * | 2019-06-23 | 2024-04-26 | 西南交通大学 | Research platform for relevance of radial deformation of winding and oscillatory wave and test method thereof |
| CN112922621A (en) * | 2021-03-09 | 2021-06-08 | 山东大学 | Diameter-variable shield tunneling machine cutter head and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106707064B (en) | 2018-05-08 |
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