CN203148563U - Converting station primary device acoustic power level measuring structure - Google Patents
Converting station primary device acoustic power level measuring structure Download PDFInfo
- Publication number
- CN203148563U CN203148563U CN 201220724574 CN201220724574U CN203148563U CN 203148563 U CN203148563 U CN 203148563U CN 201220724574 CN201220724574 CN 201220724574 CN 201220724574 U CN201220724574 U CN 201220724574U CN 203148563 U CN203148563 U CN 203148563U
- Authority
- CN
- China
- Prior art keywords
- transformer station
- main equipment
- power level
- measurement
- emission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005259 measurement Methods 0.000 claims abstract description 42
- 239000000523 sample Substances 0.000 claims abstract description 24
- 238000001816 cooling Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 description 13
- 230000005540 biological transmission Effects 0.000 description 5
- 238000004804 winding Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model provides a converting station primary device acoustic power level measuring structure which comprises a measured converting station primary device. The converting station primary device acoustic power level measuring structure is characterized in that a horizontal circumferential outer contour of the measured converting station primary device is a reference emitting surface, a measuring contour surface is arranged at the position of 0.3 meter to 2 meters outside the reference emitting surface, the measuring contour surface is evenly provided with a plurality of acoustic signal probes, the spacing between two horizontal adjacent acoustic signal probes in the plurality of acoustic signal probes is equal to the spacing between two lengthways adjacent acoustic signal probes in the plurality of acoustic signal probes, the spacings are all of 0.5 meter to 1.5 meters, and each acoustic signal probe is supported by a corresponding measurement bracket. Compared with the prior art, the converting station primary device acoustic power level measuring structure can reflect the noise generated by the converting station primary device during practical work better, and thus great significance is achieved for the treatment of the converting station noise.
Description
Technical field
The utility model relates to high voltage power transmission and transforming engineering electromagnetic environment studying technological domain, refers to the measurement structure of a kind of transformer station main equipment sound power level particularly.
Technical background
Fast development along with the power grid construction cause, government and the public are more and more higher to the environmental protection requirement, and the addressing of transformer station is being satisfied under the situation of the quality of power supply, have to be loaded and distribute and the restriction of radius of electricity supply requirement and being selected in from the resident nearer place of living, this makes transformer station's noise problem become comparatively outstanding, has caused the great attention of various circles of society.
Carry out transformer station noise abatement research, to noise source processings of eliminating the noise, this just need obtain main equipment noise level and frequency characteristic comparatively accurately to effective method exactly the most, and analyzing the reason that noise produces from mechanism, thereby it is tactful to propose improvement.High-tension power transmission and transformation equipment only is made in the separate unit test under the rated voltage usually when doing the test of dispatching from the factory, the just idle operator lamp level that obtains; And equipment is installed to after the scene, noise is often along with the increase of transmission power forms doubly growth, for general noise measuring method, owing to influenced by the noise of contiguous high-tension apparatus, existing method is difficult in the case the noise level of a certain power transmission and transforming equipment is made effective measurement.
The utility model content
The purpose of this utility model is exactly the measurement structure that a kind of transformer station main equipment sound power level will be provided, and this structure can be obtained under the actual condition ruuning situation, the noise level of transformer station's main equipment and sound power level.
For realizing this purpose, the measurement structure of transformer station's main equipment sound power level that the utility model is designed, comprise tested transformer station main equipment, it is characterized in that: the circumferential outline of level of described tested transformer station main equipment is the benchmark surface of emission, outer 0.3 ~ 2m the place of the benchmark surface of emission arranges the measurement contoured surface, evenly be provided with a plurality of acoustical signal probes on the described measurement contoured surface, spacing between horizontal two adjacent acoustical signals are popped one's head in above-mentioned a plurality of acoustical signal probe equates with the spacing between two vertically adjacent acoustical signals are popped one's head in, and spacing is 0.5 ~ 1.5m, and above-mentioned each acoustical signal probe is by the measurement stent support of correspondence.
The described benchmark surface of emission is parallel with the measurement contoured surface.
Described tested transformer station main equipment is transformer.
In the technique scheme, when the air cooling equipment of tested transformer station main equipment is out of service, the measurement profile identity distance benchmark surface of emission 0.3m of planning.
In the technique scheme, when tested transformer is the dry-type transformer of unprotect shell, the measurement profile identity distance benchmark surface of emission 1m of planning.
In the technique scheme, when the air cooling equipment of tested transformer station main equipment puts into operation, the measurement profile identity distance benchmark surface of emission 2m of planning.
The said method that the utility model provides makes the technician can accurately measure noise level and the sound power level of transformer station's main equipment under the actual condition at the scene.Only when transformer station's main equipment dispatches from the factory, carry out the idle operator lamp horizontal survey in the noise measurement compared to existing technology under this transformer station main equipment actual condition, more can allow the technician fully understand noise level and the frequency characteristic of transformer station's main equipment.The noise that the utility model can produce in the time of more reflecting transformer station's main equipment real work compared to existing technology has great importance to the improvement of transformer station's noise.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the distribution schematic diagram of acoustical signal probe on the measurement contoured surface in the utility model;
Wherein, 1-tested transformer station main equipment, 2-benchmark surface of emission, 3-measurement contoured surface, 4-acoustical signal probe, 5-measurement support.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
The measurement structure of a kind of transformer station main equipment sound power level among the figure shown in 1 and 2, comprise tested transformer station main equipment 1, the circumferential outline of level of tested transformer station main equipment 1 is the benchmark surface of emission 2, the benchmark surface of emission 2 outer 0.3 ~ 2m places arrange measures contoured surface 3, measure and evenly be provided with a plurality of acoustical signal probes 4 on the contoured surface 3, the spacing that horizontal two adjacent acoustical signals are popped one's head between 4 in above-mentioned a plurality of acoustical signal probe 4 equates with the spacing that two vertically adjacent acoustical signals are popped one's head between 4, and spacing is 0.5 ~ 1.5m, and above-mentioned each acoustical signal probe 4 supports by the measurement support 5 of correspondence.
In the technique scheme, the benchmark surface of emission 2 is parallel with measurement contoured surface 3.
In the technique scheme, every row's acoustical signal probe 4 preferably has 6.
The measuring method of a kind of transformer station main equipment sound power level, it comprises the steps:
Step 1: the circumferential outline of level of setting tested transformer station main equipment (1) is the benchmark surface of emission 2, and the circumferential outline of described level is the horizontal circumferential exterior surface of tested transformer station main equipment 1;
Step 2: 0.3 ~ 2m place arranges parallelly with the benchmark surface of emission 2 outside the benchmark surface of emission 2, and is used for the virtual measurement contoured surface 3 of acoustical signal measurement, and above-mentioned measurement contoured surface 3 is in order to determine acoustical signal pop one's head in 4 installation site and the virtual face that comes out;
Step 3: a plurality of acoustical signal probes 4 evenly are set on above-mentioned measurement contoured surface 3, the spacing that horizontal two adjacent acoustical signals are popped one's head between 4 in above-mentioned a plurality of acoustical signal probe 4 equates with the spacing that two vertically adjacent acoustical signals are popped one's head between 4, and spacing is 0.5 ~ 1.5m, and above-mentioned each acoustical signal probe 4 supports by the measurement support 5 of correspondence;
Step 4: each acoustical signal probe 4 induces the noise signal of tested transformer station main equipment 1 corresponding measuring point respectively;
Step 5: the noise signal of each acoustical signal probe 4 output is all imported in the computing machine, and computing machine goes out the sound power level of tested transformer station main equipment 1 according to above-mentioned noise signal calculation of parameter.
In the technique scheme, tested transformer station main equipment 1 is in running order all the time in the described whole measurement operation.
In the technique scheme, described tested transformer station main equipment 1 is transformer.
In the technique scheme, when the air cooling equipment of tested transformer station main equipment 1 was out of service, the measurement contoured surface 3 of planning was apart from benchmark surface of emission 0.3m.When tested transformer was the dry-type transformer of unprotect shell, the measurement contoured surface 3 of planning was apart from benchmark surface of emission 1m.When the air cooling equipment of tested transformer station main equipment 1 put into operation, the measurement contoured surface 3 of planning was apart from benchmark surface of emission 2m.Above-mentioned measurement contoured surface 3 has been guaranteed operating personnel's safety apart from the design of the benchmark surface of emission 2 distances.
As everyone knows, because the noise of hearing that transmission facilities such as transformer send is to be caused by the magnetic hysteresis dilatation of iron core and the electromagnetic force in winding, fuel tank and the magnetic shielding.Magnetic field is to bring out core-lamination stack longitudinally to vibrate the principal ingredient that the noise that produces is transformer noise.Electric current produces electromagnetic force by meeting in winding in winding.In addition, stray field also can make structural member produce vibration.Square being directly proportional of electromagnetic force (and vibration amplitude) and electric current, and square being directly proportional of the acoustical power of emission and vibration amplitude.Therefore, the acoustical power of emission and load current have relation clearly.Vibration in the device body (assembly of iron core and winding) can make fuel tank, magnetic shielding and wireway (if there is) produce resonance again.So it is the benchmark surface of emission 2 that the utility model is selected the circumferential outline of level of tested transformer station main equipment 1.
In the utility model, the concrete grammar that calculates the sound power level of tested transformer station main equipment 1 in the described step 5 is: by calculating area S(formula 1 and the formula 2 of measuring contoured surface 3), the average sound intensity level
(formula 3) can try to achieve transformer sound power level L
WA(formula 4).
Measurement for distance benchmark surface of emission 0.3m place:
S=1.25hl
m （1）
In the formula: h is the height of transformer, for the dry-type transformer of unprotect shell, refers to iron core and frame height thereof, l
mGirth for the wide face 3 of measuring wheel this moment;
Measurement for distance benchmark surface of emission 2m place:
S=(h+2)l
m （2）
In the formula: h is oil tank of transformer height or the cooling device height that comprises fan, l
mGirth for the wide face 3 of measuring wheel this moment;
In the formula: N is the number of acoustical signal probe 4 for the measuring point sum.L
IAiThe A weighted sound intensity level of each measuring point;
In the formula: S
0Be reference area, S
0Be 1m
2
The content that instructions is not described in detail belongs to this area professional and technical personnel's known prior art.
Claims (6)
1. the measurement structure of transformer station's main equipment sound power level, comprise tested transformer station main equipment (1), it is characterized in that: the circumferential outline of level of described tested transformer station main equipment (1) is the benchmark surface of emission (2), outer 0.3 ~ 2m the place of the benchmark surface of emission (2) arranges measures contoured surface (3), evenly be provided with a plurality of acoustical signal probes (4) on the described measurement contoured surface (3), the spacing that horizontal two adjacent acoustical signals are popped one's head between (4) in above-mentioned a plurality of acoustical signal probes (4) equates with the spacing that two vertically adjacent acoustical signals are popped one's head between (4), and spacing is 0.5 ~ 1.5m, and above-mentioned each acoustical signal probe (4) supports by the measurement support (5) of correspondence.
2. the measurement structure of transformer station according to claim 1 main equipment sound power level, the described benchmark surface of emission (2) is with to measure contoured surface (3) parallel.
3. the measurement structure of transformer station according to claim 1 main equipment sound power level, it is characterized in that: described tested transformer station main equipment (1) is transformer.
4. the measurement structure of transformer station according to claim 1 main equipment sound power level, it is characterized in that: when the air cooling equipment of tested transformer station main equipment (1) was out of service, the measurement contoured surface (3) of planning was apart from the benchmark surface of emission (2) 0.3m.
5. the measurement structure of transformer station according to claim 3 main equipment sound power level, it is characterized in that: when tested transformer was the dry-type transformer of unprotect shell, the measurement contoured surface (3) of planning was apart from the benchmark surface of emission (2) 1m.
6. the measurement structure of transformer station according to claim 3 main equipment sound power level, it is characterized in that: when the air cooling equipment of tested transformer station main equipment (1) put into operation, the measurement contoured surface (3) of planning was apart from the benchmark surface of emission (2) 2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724574 CN203148563U (en) | 2012-12-25 | 2012-12-25 | Converting station primary device acoustic power level measuring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724574 CN203148563U (en) | 2012-12-25 | 2012-12-25 | Converting station primary device acoustic power level measuring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203148563U true CN203148563U (en) | 2013-08-21 |
Family
ID=48976080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220724574 Expired - Lifetime CN203148563U (en) | 2012-12-25 | 2012-12-25 | Converting station primary device acoustic power level measuring structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203148563U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033259A (en) * | 2012-12-25 | 2013-04-10 | 中国电力科学研究院 | Converting station primary device acoustic power level measuring structure and method |
-
2012
- 2012-12-25 CN CN 201220724574 patent/CN203148563U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033259A (en) * | 2012-12-25 | 2013-04-10 | 中国电力科学研究院 | Converting station primary device acoustic power level measuring structure and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101793922B (en) | Audible noise measuring circuit and method of power capacitor | |
| CN103033259A (en) | Converting station primary device acoustic power level measuring structure and method | |
| CN106096184B (en) | Noise calculation method and system of transformer multipoint sound source model based on sound intensity method | |
| Geng et al. | Modal parameters identification of power transformer winding based on improved empirical mode decomposition method | |
| CN106679797A (en) | Paralleling-reactor sound-shield sound reduction measuring method and device | |
| CN102435874A (en) | Method for measuring high-voltage power transmission equipment noise | |
| CN203148563U (en) | Converting station primary device acoustic power level measuring structure | |
| Jiang et al. | Axial and radial electromagnetic‐vibration characteristics of converter transformer windings under current harmonics | |
| CN110926597B (en) | Method for determining noise abnormal part of steam turbine generator iron core | |
| Zhu et al. | Research on influence of damping on the vibration noise of transformer | |
| CN116734990A (en) | Box-type substation sound source characteristic test and sound source model building method and system | |
| Petricevic et al. | Practical application of fiber-optic current sensor in power system harmonic measurement | |
| CN103472415B (en) | A kind of small scale test method of air reactor space magnetic field | |
| CN115235604A (en) | Method and device for testing sound vibration level of iron core of transformer and electronic equipment | |
| CN107729683A (en) | The analysis of electric field method of magnetic resonance type wireless power in high-voltage electric power circuit monitoring | |
| CN104062516B (en) | Method for simulating influence of high-voltage AC power transmission line on buried steel pipeline | |
| Wang et al. | Study on Audible Noise Characteristics of Filter Capacitors and Reactors in HVDC Converter Stations by Using Sound Signal Processing Array Technique | |
| Zucca et al. | The Project “Metrology for Inductive Charging of Electric Vehicles” | |
| CN113373788A (en) | Large-span bridge and nonlinear vibration reduction and current collection integrated method | |
| CN105629086A (en) | Radiated audible noise calculating method of electric power reactor group | |
| Ma et al. | Experimental Study on the Vibration Characteristics of Oil Tank Model of Oil-Immersed Transformer | |
| Xiaowen et al. | Vibration distribution characteristics on oil-tank surface of a single-phase transformer | |
| CN110749374A (en) | Sound transmission separation method and device for transformer structure in building | |
| Hou et al. | Analysis and Measurement Methods of Transformer Vibration and Noise Characteristics | |
| Wang et al. | Test and Analysis of Vibration Mode of Distribution Transformer Tank Structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |
|
| CX01 | Expiry of patent term |