CN104236699A - Simulation load vibration test method of transformer - Google Patents
Simulation load vibration test method of transformer Download PDFInfo
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- CN104236699A CN104236699A CN201410529030.1A CN201410529030A CN104236699A CN 104236699 A CN104236699 A CN 104236699A CN 201410529030 A CN201410529030 A CN 201410529030A CN 104236699 A CN104236699 A CN 104236699A
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Abstract
The invention relates to a simulation load vibration test method of a transformer. An ICP (integrated circuit piezoelectric) acceleration sensor, a data acquisition card, a computer and a data line are provided; the ICP accelerator sensor is used for testing vibration; the data acquisition card is used for simulating and converting data signals; the computer is used for receiving and analyzing data; the data line having a USB (universal serial bus) interface is used for connecting the computer and the data acquisition card. A test object transformer, a protective water resistor, a sampling resistor and an oscilloscope are further provided; the protective water resistor is used as a load; the sampling resistor is used for monitoring current; the oscilloscope is used for monitoring waveform. The method has the advantages that hardware structure is simple, a function of diagnostic analysis is mainly implemented by software, updating and maintenance are facilitated, and carrying is facilitated. Test results of the method allow running conditions of a transformer core with no power outage.
Description
Technical field
The invention belongs to signal monitoring technical field, relate to a kind of transformer analog load method for testing vibration.
Background technology
Power consumer improves constantly environment request for utilization both at home and abroad at present, and the vibration signal of transformer has become an important technology index of transformer equipment diagnosis and transformer noise reduction.The vibration of transformer derives from magnetic hysteresis unshakable in one's determination and stretches and the electric power of coil, mainly based on iron coring vibration, also comprises the vibration that its vibration causes each parts.Improve the vibration characteristics of transformer, must first through the vibration characteristics of vibration-testing identification key position, thus the design of each parts of corresponding optimization and correct evaluation is made to the operating condition of each parts.Therefore meaning of crucial importance is had to transformer analysis of vibration measurement.
In every on-line monitoring of existing transformer, the vibration of transformer is not monitored.At present only rested on to the research of transformer method for testing vibration the laboratory study stage, in addition, in laboratory, there is no simulated field operating condition, just when no-load transformer or short circuit, transformer core is carried out to transformer or coil carries out vibration-testing.This kind of method need be carried out when transformer has a power failure.
The object of the invention is to the iron coring vibration state also monitoring transformer when transformer does not have a power failure.
Summary of the invention
The object of the present invention is to provide a kind of transformer analog load method for testing vibration.The technical solution adopted for the present invention to solve the technical problems finds transformer with method for testing vibration to vibrate comparatively a little louder and the operating condition judging transformer.Particularly when not power-off, the operating condition of transformer core can be judged.It is characterized in that; Described transformer analog load method for testing vibration has the vibration acceleration sensor be located on oil tank of transformer surface and inner folder, obtains the vibration signal on apparatus for fixing transformer surface and the vibration signal of tank surface respectively.
The built-in amplifying circuit of vibration transducer in described transformer analog load method for testing vibration, need not external charge amplifier, sensor is all-sealed structure, can steep and use in oil, sensor strip insulation magnetic support in addition, sensor can be bonded at the surface of folder and fuel tank easily.
The signal that described transformer analog load method for testing vibration acceleration transducer exports carries out nursing one's health and outputting to data collecting card, and is connected with the computing machine as data receiver, for the data analysis of collection signal.
Described transformer analog load method for testing vibration carries out in testing laboratory, the protection water resistance that load selects laboratory conventional, and is connected in series sampling resistor in load circuit, gathers the voltage signal of sampling resistor with oscillograph.
Advantage of the present invention and beneficial effect conveniently can run on-the-spot test for transformer; Device hardware configuration is simple, and diagnostic analysis function mainly relies on software simulating, is convenient to upgrading, safeguards and carry; Utilize this method can carry out vibration-testing to the multiple critical component of transformer, so that pin is optimized structure targetedly, improve the vibration performance index of transformer, transformer research and development can be widely used in, manufacture and operation field.
Accompanying drawing explanation
Fig. 1 is vibration test system figure and sensor arrangenent diagram.
Fig. 2 is the arrangenent diagram of sensor.
Fig. 3 is the result figure of vibration-testing.
Embodiment
As shown in Figure 1, transformer analog load testing system used in the present invention by regulating the ICP sensor 9 of the pressure regulator 1 of input voltage, vibration-testing, the computer 6 of the capture card 8 of data acquisition and data analysis forms, wherein data collecting card 8 and computer 6 with band USB interface with data line 7 be connected, the tested object of this test macro is that SBH15-10/0.4 Amorphous Alloy Core Transformer 2 forms.Transformer load adopts water resistance 3, by extracting the voltage signal sealed in sampling resistor 4 with oscillograph 5.Change the resistance of water resistance, with the on-the-spot different load of dry run.
As shown in Figure 2, a, b, c phase center that the low-pressure side on fuel tank 10 surface is corresponding arranged respectively by sensor 12, simultaneously in upper clamping piece corresponding a, b, c phase center, surface also placement sensor 12 of transformer.
Apply rated voltage at step down side during test, the vibration signal of record each point also carries out data analysis, and data results is shown in Fig. 3-1, Fig. 3-2, is respectively the amplitude of transformer correspondence under the vibration frequency that upper different with tank surface under different loads.
Because transformer vibration is stretched primarily of the magnetic hysteresis of iron core and coil current by time the electric power that produces cause, comprise simultaneously and passed to folder by unshakable in one's determination and coil, spread the vibration of passing fuel tank by oily.
Because the electric power of coil is:
F
cshort-circuit electromotive force (N.m-1);
permeability of vacuum ();
N
2the secondary coil number of turn;
I
2secondary side current;
D coil-span from.
When line comparatively in be zero by electric current time, the vibration of at this moment coil generation is almost nil, now the intercept of Fig. 3-1, Fig. 3-2 correspondence is vibration characteristics unshakable in one's determination, therefore when transformer does not have a power failure, also can lead to the situation that monitoring vibration unshakable in one's determination judges transformer core and folder.
Claims (3)
1. a transformer analog load method for testing vibration, technical scheme finds transformer oscillation point with method for testing vibration and judges the operating condition of transformer; Particularly when not power-off, the operating condition of transformer core can be judged, it is characterized in that comprising:
Described transformer analog load method for testing vibration has the vibration acceleration sensor be located on oil tank of transformer surface and fuel tank internal folder, is respectively used to obtain the vibration signal on apparatus for fixing transformer surface and the signal of tank surface;
The built-in amplifying circuit of vibration transducer in described transformer analog load method for testing vibration, need not external charge amplifier, sensor is all-sealed structure, can steep and use in oil, sensor strip insulation magnetic support in addition, sensor can be bonded at the surface of folder and fuel tank easily;
Described transformer analog load method for testing vibration is nursed one's health the signal that acceleration transducer exports and outputs to data collecting card, and is connected with the computing machine as data receiver, for the data analysis of collection signal;
Described transformer analog load method for testing vibration carries out in testing laboratory, the protection water resistance that load selects laboratory conventional, and is connected in series sampling resistor in load circuit, gathers the voltage signal of sampling resistor with oscillograph.
2. transformer analog load method for testing vibration sensors A D100T-D IEPE according to claim 1, is characterized in that: the sensitivity of sensor is 1000Mv/g; The frequency range of test is 0.2Hz ~ 8000Hz; Acceleration range is ± 5g; The resonance frequency of installing is 27KHz; Acceleration direction is the center by plug, and the body pointing to accelerometer from mounting surface is forward; Output impedance≤100 Ω.
3. transformer analog load method for testing vibration according to claim 1, data collecting card MPS-140801 has 8 road acquisition channels, it is characterized in that: support ICP sensor; Voltage range is-10V ~+10V; Sampling rate has 128K, 64K, 32K, 16K, 8K, 4K, 1K, totally eight gears adjustable; Adopt USB high speed bus interface, support plug and play and hot plug, carry 191K super large FIFO buffer memory, loss of data can be prevented to greatest extent, ensure the integrality of signal; Can Win7 be operated in, in the operating systems such as XP, support the programming languages such as VB, VC, LABVIEW and MATLAB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410529030.1A CN104236699A (en) | 2014-10-10 | 2014-10-10 | Simulation load vibration test method of transformer |
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| CN201410529030.1A CN104236699A (en) | 2014-10-10 | 2014-10-10 | Simulation load vibration test method of transformer |
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| CN104236699A true CN104236699A (en) | 2014-12-24 |
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| CN201410529030.1A Pending CN104236699A (en) | 2014-10-10 | 2014-10-10 | Simulation load vibration test method of transformer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289496A (en) * | 2016-10-19 | 2017-01-04 | 上海博纳杰陈电气有限公司 | A kind of method and device testing transformer noise |
| CN108375933A (en) * | 2018-03-05 | 2018-08-07 | 国网山东省电力公司高密市供电公司 | Real-time monitoring's 10kV transformer overhauls management system |
| CN108534933A (en) * | 2018-03-27 | 2018-09-14 | 国网河北省电力有限公司电力科学研究院 | Transformer winding monitoring device |
| CN110361088A (en) * | 2019-08-14 | 2019-10-22 | 杭州柯林电气股份有限公司 | The mechanically stable malfunction monitoring diagnostic system of transformer |
| CN110375846A (en) * | 2019-08-14 | 2019-10-25 | 杭州柯林电气股份有限公司 | Perceive the device of vocal print vibration inline diagnosis power transformer interior fault |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101493355A (en) * | 2009-02-18 | 2009-07-29 | 长沙全程数字机电科技有限公司 | Integration oscillation monitoring instrument |
| CN202735425U (en) * | 2012-06-13 | 2013-02-13 | 江苏省电力公司南京供电公司 | Power transformer fault detection system based on vibration |
| CN103776622A (en) * | 2014-01-08 | 2014-05-07 | 江苏省电力公司检修分公司 | High voltage circuit breaker mechanical fault rapid diagnosis system |
| CN103941192A (en) * | 2014-04-10 | 2014-07-23 | 北京群菱能源科技有限公司 | Energy storage power station test load |
| CN203745074U (en) * | 2014-03-25 | 2014-07-30 | 国家电网公司 | Transformer vibration monitoring device based on wireless sensing technology |
-
2014
- 2014-10-10 CN CN201410529030.1A patent/CN104236699A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101493355A (en) * | 2009-02-18 | 2009-07-29 | 长沙全程数字机电科技有限公司 | Integration oscillation monitoring instrument |
| CN202735425U (en) * | 2012-06-13 | 2013-02-13 | 江苏省电力公司南京供电公司 | Power transformer fault detection system based on vibration |
| CN103776622A (en) * | 2014-01-08 | 2014-05-07 | 江苏省电力公司检修分公司 | High voltage circuit breaker mechanical fault rapid diagnosis system |
| CN203745074U (en) * | 2014-03-25 | 2014-07-30 | 国家电网公司 | Transformer vibration monitoring device based on wireless sensing technology |
| CN103941192A (en) * | 2014-04-10 | 2014-07-23 | 北京群菱能源科技有限公司 | Energy storage power station test load |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289496A (en) * | 2016-10-19 | 2017-01-04 | 上海博纳杰陈电气有限公司 | A kind of method and device testing transformer noise |
| CN108375933A (en) * | 2018-03-05 | 2018-08-07 | 国网山东省电力公司高密市供电公司 | Real-time monitoring's 10kV transformer overhauls management system |
| CN108534933A (en) * | 2018-03-27 | 2018-09-14 | 国网河北省电力有限公司电力科学研究院 | Transformer winding monitoring device |
| CN110361088A (en) * | 2019-08-14 | 2019-10-22 | 杭州柯林电气股份有限公司 | The mechanically stable malfunction monitoring diagnostic system of transformer |
| CN110375846A (en) * | 2019-08-14 | 2019-10-25 | 杭州柯林电气股份有限公司 | Perceive the device of vocal print vibration inline diagnosis power transformer interior fault |
| CN110375846B (en) * | 2019-08-14 | 2023-08-04 | 杭州柯林电气股份有限公司 | Device for sensing voiceprint vibration and diagnosing internal faults of transformer on line |
| CN110361088B (en) * | 2019-08-14 | 2023-08-22 | 杭州柯林电气股份有限公司 | Transformer mechanical stability fault monitoring and diagnosing system |
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Application publication date: 20141224 |