CN105444877A - Shunt reactor equivalent model for electromagnetic vibration noise tests - Google Patents
Shunt reactor equivalent model for electromagnetic vibration noise tests Download PDFInfo
- Publication number
- CN105444877A CN105444877A CN201511002865.2A CN201511002865A CN105444877A CN 105444877 A CN105444877 A CN 105444877A CN 201511002865 A CN201511002865 A CN 201511002865A CN 105444877 A CN105444877 A CN 105444877A
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- phase
- magnetic
- fuel tank
- shunt reactor
- equivalent model
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Regulation Of General Use Transformers (AREA)
Abstract
The invention relates to a shunt reactor equivalent model for electromagnetic vibration noise tests and belongs to the transformer test technical field. According to the technical schemes of the invention, the main column of a single-phase three-column core adopts five core cakes (4); the iron cakes are supported through marble blocks (3); the clamping of the yoke (1) of the single-phase three-column core is realized through a clamp and a side screw rod; the core column is tensioned through a high-strength steel screw rod bunch; a coil is arranged outside the core cakes (4); two end portions of the coil are respectively provided with a magnetic shielding unit (2); the upper part of an oil tank (7) is provided with an oil storage cabinet (8); the low-voltage side of the oil tank (7) is provided with a sheet type radiator (6); natural oil circulation is adopted; and a wire outgoing hole of a measuring line is left at the top of the oil tank. According to the shunt reactor equivalent model of the invention, an electrical structure design equivalent to a high-voltage shunt reactor magnetic field is adopted. With the equivalent model adopted, the leakage magnetic field, vibration noise transmission and coupling rules of high-voltage and large-capacity shunt transformers under an operating state can be simulated in a laboratory.
Description
Technical field
The present invention relates to a kind of electric and magnetic oscillation noise test shunt reactor equivalent model, belong to transformer test technical field.
Background technology
Oil-immersed and high-voltage shunt reactor iron core is generally adopt multiple iron-cored cake and multiple air gap to form, and due to this design feature, it exists relatively more outstanding vibration and noise problem in actual motion.In order to design and manufaction low noise shunt reactor product, in depth need study the rule of vibration noise transmission, coupling in transformer, exploitation, checking high-voltage shunt reactor body noise reduction new material/structure, carry out the investigation and application of the aspects such as shunt reactor three-dimensional magnetic field, stray loss, local overheating simultaneously, those skilled in the art are badly in need of the shunt reactor equivalent model that can be used for electromagnetic measurement, vibration and noise test, can carry out above-mentioned research in low-voltage and small size equivalent model.
Summary of the invention
The object of the invention is to provide a kind of electric and magnetic oscillation noise test shunt reactor equivalent model, adopt the electrical structure design of equivalence, utilize this equivalent model at experiment lab simulation high pressure, Large Copacity shunt transformer stray field under operation, vibration noise transmission, Coupling Rule, the problems referred to above that background technology exists can be solved.
Technical scheme of the present invention is:
A kind of electric and magnetic oscillation noise test shunt reactor equivalent model, comprise device body, gilled radiator, fuel tank and oil conservater, device body is arranged in fuel tank, fuel tank peripheral hardware gilled radiator, and fuel tank is communicated with oil conservater; Described device body is made up of single-phase three posts iron cores and winding, and the principal post of single-phase three post iron cores adopts five iron-cored cakes, supports, to reserve enough gaps between iron-cored cake by marble blocks; The stepping up of the iron yoke of single-phase three post iron cores realizes by folder and other screw rod;
Arrange coil outside iron-cored cake, two ends of coil arrange magnetic shielding respectively, to improve Distribution of Magnetic Field, prevent magnetic flux from entering folder; In the outside of single-phase three post iron cores, adopt and furthered by the take-up device of plow-steel screw rod Shu Zucheng, ensure the core limb constant pressure of single-phase three post iron cores;
In order to reduce the added losses that air gap place transverse magnetic flux causes in iron-cored cake, the siliconized plate of single-phase three post iron cores is by the outside radial stack of center pit, adopts the pressure pouring of vacuum epoxy resin, is solidified into entirety;
Because gilled radiator and oil conservater can have an impact to the vibration of fuel tank, arrange oil conservater on fuel tank top, the low-pressure side of fuel tank arranges gilled radiator; Adopt Natural Oil Circulation Power, for the ease of carrying out vibration-testing to the single-phase three post iron cores in oil, top of oil-tank leaves the wire hole of slotted line.
Shunt reactor equivalent model of the present invention is defined as: the magnetic field of model and conventional high-pressure shunt reactor product has higher consistance, priority control critical data can close to Product Level, structure has the correlativity of height, the stray field of product, vibration noise transmission, Coupling Rule can be verified.
The technology of the present invention feature is: compared with high-voltage shunt reactor, and voltage of the present invention is lower, size is less, and voltage has larger tolerance range, meets the close requirement to vibration of reactor noise effect of experimental study different designs magnetic.
Good effect of the present invention: the electrical structure design adopting equivalence; This equivalent model is utilized to test lab simulation high pressure, Large Copacity shunt transformer stray field under operation, vibration noise transmission, Coupling Rule.
Accompanying drawing explanation
Fig. 1 is the primary structure figure of shunt reactor equivalent model device body of the present invention;
Fig. 2 is shunt reactor equivalent model outside drawing of the present invention;
In figure: iron yoke 1, magnetic shielding 2, marble blocks 3, iron-cored cake 4, coil 5, gilled radiator 6, fuel tank 7, oil conservater 8.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the invention will be further described.
A kind of electric and magnetic oscillation noise test shunt reactor equivalent model, comprise device body, gilled radiator 6, fuel tank 7 and oil conservater 8, device body is arranged in fuel tank 7, fuel tank peripheral hardware gilled radiator 6, and fuel tank 7 is communicated with oil conservater 8; Described device body is made up of single-phase three posts iron cores and winding, and the principal post of single-phase three post iron cores adopts five iron-cored cakes 4, supports between iron-cored cake by marble blocks 3, to reserve enough gaps; The stepping up of the iron yoke 1 of single-phase three post iron cores realizes by folder and other screw rod;
Arrange coil 5 outside iron-cored cake 4, two ends of coil 5 arrange magnetic shielding 2 respectively, to improve Distribution of Magnetic Field, prevent magnetic flux from entering folder; In the outside of single-phase three post iron cores, adopt and furthered by the take-up device of plow-steel screw rod Shu Zucheng, ensure the core limb constant pressure of single-phase three post iron cores;
In order to reduce the added losses that air gap place transverse magnetic flux causes in iron-cored cake, the siliconized plate of single-phase three post iron cores is by the outside radial stack of center pit, adopts the pressure pouring of vacuum epoxy resin, is solidified into entirety;
Because the vibration of gilled radiator 6 with oil conservater 8 pairs of fuel tanks can have an impact, arrange oil conservater 8 on fuel tank top, the low-pressure side of fuel tank arranges gilled radiator 6; Adopt Natural Oil Circulation Power, for the ease of carrying out vibration-testing to the single-phase three post iron cores in oil, top of oil-tank leaves the wire hole of slotted line.
Reactor model can not simply adopt the contracting of scaled down to design than principle.Through simulation analysis, the present invention reaches equivalents by the technical indicator controlling following shunt reactor:
1), single-phase three posts magnetic unshakable in one's determination is close;
2), magnetic shielding magnetic is close;
3), the close and loss density of folder magnetic;
4), the close and loss density of fuel tank magnetic;
5), the close and loss density of single-phase three posts fastening screw unshakable in one's determination magnetic;
6), the selection of single-phase three posts size of gaps unshakable in one's determination;
7), single-phase three posts fastening screw radical unshakable in one's determination, intensity and pretightning force.
Calculated by Electromagnetic Simulation repeatedly, contrast, analyze, the above-mentioned major control technical indicator of final equivalent model can at utmost close to high-voltage shunt reactor Product Level.
The basic parameter of the present embodiment shunt reactor equivalent model:
Rated capacity: 6.7Mvar;
Rated voltage: 22.52/ √ 3(radical sign 3) ~ 34kV/ √ 3(radical sign 3) (in order to test the close impact on vibration of reactor noise of different designs magnetic);
Reactance value: 25.23 Ω;
Temperature limit: oily top layer 60K, the average 65K of winding, coiling hotspot 78K;
Noise level :≤75dB (A).
Compared with high-voltage shunt reactor, voltage of the present invention is lower, size is less, and voltage has larger tolerance range, meets the close requirement to vibration of reactor noise effect of experimental study different designs magnetic.
Claims (2)
1. an electric and magnetic oscillation noise test shunt reactor equivalent model, it is characterized in that: adopt and comprise device body, gilled radiator (6), fuel tank (7) and oil conservater (8), device body is arranged in fuel tank (7), fuel tank peripheral hardware gilled radiator (6), fuel tank (7) is communicated with oil conservater (8); Described device body is made up of single-phase three posts iron cores and winding, and the principal post of single-phase three post iron cores adopts five iron-cored cakes (4), supports between iron-cored cake by marble blocks (3); The stepping up of the iron yoke (1) of single-phase three post iron cores realizes by folder and other screw rod;
Coil (5) is arranged in iron-cored cake (4) outside, and two ends of coil (5) arrange magnetic shielding (2) respectively; In the outside of single-phase three post iron cores, adopt and strained by the take-up device of plow-steel screw rod Shu Zucheng, ensure the core limb constant pressure of single-phase three post iron cores;
The siliconized plate of single-phase three post iron cores is by the outside radial stack of center pit, adopts the pressure pouring of vacuum epoxy resin, is solidified into entirety;
Arrange oil conservater (8) on fuel tank top, the low-pressure side of fuel tank arranges gilled radiator (6); Adopt Natural Oil Circulation Power, tank bottoms leaves the wire hole of slotted line.
2. a kind of electric and magnetic oscillation noise test shunt reactor equivalent model according to claim 1, is characterized in that reaching and high-voltage shunt reactor equivalents by controlling following technical indicator:
1), single-phase three posts magnetic unshakable in one's determination is close;
2), magnetic shielding magnetic is close;
3), the close and loss density of folder magnetic;
4), the close and loss density of fuel tank magnetic;
5), the close and loss density of single-phase three posts fastening screw unshakable in one's determination magnetic;
6), the selection of single-phase three posts size of gaps unshakable in one's determination;
7), single-phase three posts fastening screw radical unshakable in one's determination, intensity and pretightning force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002865.2A CN105444877B (en) | 2015-12-29 | 2015-12-29 | A kind of electric and magnetic oscillation noise test shunt reactor equivalent model |
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| CN201511002865.2A CN105444877B (en) | 2015-12-29 | 2015-12-29 | A kind of electric and magnetic oscillation noise test shunt reactor equivalent model |
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| CN105444877A true CN105444877A (en) | 2016-03-30 |
| CN105444877B CN105444877B (en) | 2018-11-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114216635A (en) * | 2021-11-24 | 2022-03-22 | 广西电网有限责任公司电力科学研究院 | Device and method for testing influence of tension screw rod of shunt reactor on vibration and noise |
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| CN2757307Y (en) * | 2004-09-09 | 2006-02-08 | 郭爱华 | Iron core reactor |
| JP2009027102A (en) * | 2007-07-24 | 2009-02-05 | Tokyo Univ Of Science | Stacked coil, vibration sensor using stacked coil, and manufacturing method of the stacked coil |
| CN102709037A (en) * | 2012-06-20 | 2012-10-03 | 湖北省电力公司电力试验研究院 | Transformer with built-in transducer |
| JP5716330B2 (en) * | 2010-09-22 | 2015-05-13 | Ｊｆｅスチール株式会社 | Evaluation method of electrical steel sheet for laminated iron core |
| CN104682385A (en) * | 2015-02-11 | 2015-06-03 | 华北电力大学 | Low-voltage physical model for thyristor controlled transformer type single-phase controllable shunt reactor |
-
2015
- 2015-12-29 CN CN201511002865.2A patent/CN105444877B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2757307Y (en) * | 2004-09-09 | 2006-02-08 | 郭爱华 | Iron core reactor |
| JP2009027102A (en) * | 2007-07-24 | 2009-02-05 | Tokyo Univ Of Science | Stacked coil, vibration sensor using stacked coil, and manufacturing method of the stacked coil |
| JP5716330B2 (en) * | 2010-09-22 | 2015-05-13 | Ｊｆｅスチール株式会社 | Evaluation method of electrical steel sheet for laminated iron core |
| CN102709037A (en) * | 2012-06-20 | 2012-10-03 | 湖北省电力公司电力试验研究院 | Transformer with built-in transducer |
| CN104682385A (en) * | 2015-02-11 | 2015-06-03 | 华北电力大学 | Low-voltage physical model for thyristor controlled transformer type single-phase controllable shunt reactor |
Non-Patent Citations (1)
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| 张栋 等: "大型并联电抗器的电磁场综述及受力的仿真", 《变压器》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114216635A (en) * | 2021-11-24 | 2022-03-22 | 广西电网有限责任公司电力科学研究院 | Device and method for testing influence of tension screw rod of shunt reactor on vibration and noise |
| CN114216635B (en) * | 2021-11-24 | 2023-08-22 | 广西电网有限责任公司电力科学研究院 | Test device and method for influencing vibration and noise by tensioning screw rod of parallel reactor |
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| CN105444877B (en) | 2018-11-30 |
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