CN207964078U - A kind of on-line measuring device of middle pressure transformer running noises - Google Patents
A kind of on-line measuring device of middle pressure transformer running noises Download PDFInfo
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- CN207964078U CN207964078U CN201820384403.4U CN201820384403U CN207964078U CN 207964078 U CN207964078 U CN 207964078U CN 201820384403 U CN201820384403 U CN 201820384403U CN 207964078 U CN207964078 U CN 207964078U
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Abstract
The utility model provides a kind of on-line measuring device of middle pressure transformer running noises, including：At least three noise transducers for acquiring medium pressure transformer station high-voltage side bus noise signal（1）；Pass through signal wire（2）With the noise transducer（1）The preposition cabinet of connected signal detection（3）, the preposition cabinet of signal detection（3）Including multiple filter（4）And signal processing system（5）, the multiple filter（4）With the noise transducer（1）Rigid line connects, for the noise transducer（1）The medium pressure transformer station high-voltage side bus noise signal of acquisition is filtered, the signal processing system（5）For to through the multiple filter（4）Filtered middle pressure transformer running noises signal is analyzed and is handled.The utility model can be to avoid the error of personal feeling and artificial judgment, and centering pressure transformer running noises are detected and analyzed accurately, in real time, saves human resources, improves production efficiency.
Description
Technical field
The utility model is related to power system device technical field more particularly to a kind of middle pressure transformer running noises to exist
Line detector.
Background technology
It is existing studies have shown that transformer noise be by transformer body vibration and cooling device vibration and generate a kind of company
The main reason for continuous property noise, vibration is the core vibration caused by the magnetic hysteresis of silicon steel sheet is flexible, the electromagnetic force of winding
Generation noise can be vibrated.According to the relevant regulations in being instructed about Repair of Transformer in electric power overhaul：It should when transformer inspection
The vibration of transformer, noise are detected, but it is seldom in the noise measuring equipment used at present, as long as by inspection people
Member judges noise situations according to the working experience of itself.This method is not only inaccurate, and personal feeling and error are larger,
And there are the reservations of no data, the problem of signal can not be stored, cannot be analyzed the overall condition of transformer.It is existing
Some equipment volumes are excessive, complicated for operation, and a large amount of personnel is needed to participate in, and are unable to real-time online detection, divide data
It analyses and handles also not enough in place.
Utility model content
Technical problem to be solved by the utility model is to provide a kind of on-line checkings of middle pressure transformer running noises
Device can be directed to when the noise generated when the operation of middle pressure transformer carries out real-time online detection sum number factually and analyze.
In order to solve the above technical problems, the utility model provides a kind of on-line checking dress of middle pressure transformer running noises
It sets, including：
At least three noise transducers for acquiring medium pressure transformer station high-voltage side bus noise signal；
The preposition cabinet of signal detection being connected with the noise transducer by signal wire, the preposition cabinet of signal detection include
Multiple filter and signal processing system, the multiple filter are connect with the noise transducer rigid line, for making an uproar to described
The medium pressure transformer station high-voltage side bus noise signal of sonic transducer acquisition is filtered, and the signal processing system is used for described in warp
The filtered middle pressure transformer running noises signal of multiple filter is analyzed and is handled.
Wherein, the noise transducer includes the first noise transducer, the second noise transducer and third noise transducer,
Geometric center of first noise transducer close to middle pressure transformer fuel tank side is arranged, and second noise transducer is close
The geometric center of middle pressure transformer fan side is arranged, the third noise transducer it is close with middle pressure transformer fuel tank side,
The geometric center of the adjacent side in fan side is arranged.
Wherein, in the first noise transducer vertical range pressure transformer fuel tank side 0.1 meter to 0.5 of geometric center
Rice, 0.1 meter to 0.5 meter of the geometric center of pressure transformer fan side in the second noise transducer vertical range, described the
0.1 meter to 0.5 meter of the geometric center of adjacent side described in three noise transducer vertical ranges.
Wherein, the performance parameter of the noise transducer is：Measurement range：30~120dB, frequency range：20Hz~
8kHz, sensitivity：Voltage 41.5mV/dB;Electric current 0.133mA/dB.
Wherein, the multiple filter is specifically used for filtering out interference extra in medium pressure transformer station high-voltage side bus noise signal
Signal exports the spectrum signal of the noise of integer multiple frequency.
Wherein, the on-line measuring device further includes the holder for installing the noise transducer.
The advantageous effect that the utility model is brought is：It is passed by being independently arranged noise in three sides of middle pressure transformer
It is preposition to be transmitted to signal detection by sensor by noise transducer by signal wire for the middle pressure transformer running noises signal of acquisition
Cabinet, further by the multiple filter filtering interference signals in the preposition cabinet of signal detection, by signal processing system carry out analysis and
Processing, avoids the error of personal feeling and artificial judgment, can centering pressure transformer running noises are examined accurately, in real time
It surveys and analyzes, a large amount of personnel need not also be needed to participate in, save human resources, improve production efficiency.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of structure diagram of the on-line measuring device of middle pressure transformer running noises of the utility model embodiment.
Fig. 2 is noise transducer and its supporting structure schematic diagram in the utility model embodiment.
Fig. 3 is the position schematic diagram of noise transducer in the utility model embodiment.
Specific implementation mode
The explanation of following embodiment is refer to the attached drawing, can be to the particular implementation implemented to example the utility model
Example.The direction and position term that the utility model is previously mentioned, for example, "upper", "lower", "front", "rear", "left", "right", "inner", "
Outside ", " top ", " bottom ", " side " etc. are only the direction or position of refer to the attached drawing.Therefore, the direction used and position term
It is to illustrate and understand the utility model, rather than the limitation to scope of protection of the utility model.
It please refers to shown in Fig. 1, the utility model embodiment provides a kind of on-line checking dress of middle pressure transformer running noises
It sets, including：
At least three noise transducers 1 for acquiring medium pressure transformer station high-voltage side bus noise signal；
The preposition cabinet 3 of signal detection being connected with the noise transducer 1 by signal wire 2, the preposition cabinet of the signal detection 3
Including multiple filter 4 and signal processing system 5, the multiple filter 4 is connect with 1 rigid line of the noise transducer, is used for
The medium pressure transformer station high-voltage side bus noise signal acquired to the noise transducer 1 is filtered, and the signal processing system 5 is used
In to being analyzed and being handled through the filtered middle pressure transformer running noises signal of the multiple filter 4.
The noise transducer 1 of the utility model embodiment is mounted on holder 10 as shown in Figure 2, specifically, Fig. 3 for another example
Shown, the on-line measuring device of pressure transformer running noises includes three noise transducers in the present embodiment --- and the first noise passes
Sensor 11, the second noise transducer 12 and third noise transducer 13, wherein：First noise transducer 11 is close to middle pressure transformer
The geometric center of fuel tank side is arranged, specifically, 0.1 meter to 0.5 of the geometric center of pressure transformer fuel tank side in vertical range
Rice；Geometric center of second noise transducer 12 close to middle pressure transformer fan side is arranged, specifically, buckling in vertical range
0.1 meter to 0.5 meter of the geometric center of depressor fan side；Third noise transducer 13 it is close with middle pressure transformer fuel tank side,
The geometric center of the adjacent side in fan side is arranged, specifically, 0.1 meter of the geometric center of adjacent side described in vertical range
To 0.5 meter.The model of three noise transducers is consistent, and as an example, performance parameter is：Measurement range：30~
120dB, frequency range：20Hz~8kHz, sensitivity：Voltage 41.5mV/dB;Electric current 0.133mA/dB.
The middle pressure transformer running noises signal of acquisition is transmitted to signal detection by three noise transducers by signal wire 2
Preposition cabinet 3.In the present embodiment, signal wire 2 is passed using five class cables or more by serial communication protocol or IEC61850 agreements
Defeated signal.
In the present embodiment, multiple filter 4 can filter out the middle pressure transformer running noises signal of the acquisition of noise transducer 1
In extra interference signal, the spectrum signal of the noise for the integer multiple frequency that output operations staff needs（Such as 100 hertz, 200
Hertz, 300 hertz etc.）, to carry out subsequent analysis.Signal processing system 5 can be divided the output signal of multiple filter 3
Analysis and processing, upload finally by IEC61850 or 485 agreements.
The operation principle and process of the on-line measuring device of pressure transformer running noises is as follows in the present embodiment：
Since the utility model is a kind of on-line measuring device, gained detection data can synchronized upload to main station system,
Operations staff is not needed when detection to operate at the scene.But operating personnel is needed to strictly observe associate power trouble free service when mounted
Regulation, installation should avoid carrying out under the unfavorable conditions such as bad weather and power grid unusual service condition.Specifically, three are made an uproar when installation
Sonic transducer is installed according to position shown in Fig. 3, accesses the preposition cabinet 3 of signal detection, the preposition cabinet of signal detection by signal wire 2 respectively
3 output passes through signal wire or wireless way for transmitting.
Transformer noise test can refer to《The 10th part sound level of GB 1094.10-2003 power transformers measures》In phase
Regulation is closed, and measurement should be carried out in ambient noise approximately constant, noise be passed using IEC61850 agreements or serial communication protocol
The middle pressure transformer running noises signal transmission that sensor 1 obtains to the preposition cabinet 3 of signal detection and stores, the preposition cabinet of signal detection 3
The signal received is conveyed to the multiple filter 4 being installed in cabinet again；Multiple filter 4 carries out multiple filter according to service requirement
Wave exports the transformer noise amplitude figure under specific multiple frequency；Signal processing system 5 in cabinet is by the defeated of multiple filter 4
Go out signal as input, the noise signal of transformer is analyzed；Finally the output of signal processing system 5 is passed through
IEC61850 or the transmission of 485 agreements, storage carry out on-line analysis, reference for operations staff.
By above description it is found that the advantageous effect that the utility model is brought is：By at three of middle pressure transformer
Side is independently arranged noise transducer, is passed the middle pressure transformer running noises signal of acquisition by signal wire by noise transducer
The preposition cabinet of signal detection is transported to, further by the multiple filter filtering interference signals in the preposition cabinet of signal detection, by signal
Reason system is analyzed and is handled, and the error of personal feeling and artificial judgment is avoided, can accurately, centering buckling pressure in real time
Device running noises are detected and analyzed, and a large amount of personnel need not also be needed to participate in, and save human resources, improve production effect
Rate.
Above disclosures are merely preferred embodiments of the utility model, with this utility model cannot be limited certainly
Interest field, therefore equivalent variations made according to the claim of the utility model still fall within the scope of the utility model.
Claims (6)
1. a kind of on-line measuring device of middle pressure transformer running noises, which is characterized in that including：
At least three noise transducers for acquiring medium pressure transformer station high-voltage side bus noise signal（1）；
Pass through signal wire（2）With the noise transducer（1）The preposition cabinet of connected signal detection（3）, the signal detection is preposition
Cabinet（3）Including multiple filter（4）And signal processing system（5）, the multiple filter（4）With the noise transducer（1）
Rigid line connects, for the noise transducer（1）The medium pressure transformer station high-voltage side bus noise signal of acquisition is filtered, described
Signal processing system（5）For to through the multiple filter（4）Filtered middle pressure transformer running noises signal is divided
Analysis and processing.
2. on-line measuring device according to claim 1, which is characterized in that the noise transducer（1）It makes an uproar including first
Sonic transducer（11）, the second noise transducer（12）With third noise transducer（13）, first noise transducer（11）It leans on
The geometric center setting of pressure transformer fuel tank side, second noise transducer in close（12）Close to middle pressure transformer fan side
The geometric center in face is arranged, the third noise transducer（13）It is close adjacent with middle pressure transformer fuel tank side, fan side
Side geometric center setting.
3. on-line measuring device according to claim 2, which is characterized in that first noise transducer（11）Vertically away from
0.1 meter to 0.5 meter of geometric center from middle pressure transformer fuel tank side, second noise transducer（12）It is pressed in vertical range
0.1 meter to 0.5 meter of the geometric center of transformer fan side, the third noise transducer（13）It is adjacent described in vertical range
0.1 meter to 0.5 meter of the geometric center of side.
4. on-line measuring device according to claim 3, which is characterized in that the performance parameter of the noise transducer is：
Measurement range：30~120dB, frequency range：20Hz~8kHz, sensitivity：Voltage 41.5mV/dB;Electric current 0.133mA/dB.
5. on-line measuring device according to claim 1, which is characterized in that the multiple filter is specifically used for filtering out institute
Interference signal extra in pressure transformer running noises signal is stated, the spectrum signal of the noise of integer multiple frequency is exported.
6. on-line measuring device according to claim 1, which is characterized in that further include for installing the noise transducer
（1）Holder（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820384403.4U CN207964078U (en) | 2018-03-21 | 2018-03-21 | A kind of on-line measuring device of middle pressure transformer running noises |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820384403.4U CN207964078U (en) | 2018-03-21 | 2018-03-21 | A kind of on-line measuring device of middle pressure transformer running noises |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207964078U true CN207964078U (en) | 2018-10-12 |
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ID=63725869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820384403.4U Active CN207964078U (en) | 2018-03-21 | 2018-03-21 | A kind of on-line measuring device of middle pressure transformer running noises |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207964078U (en) |
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2018
- 2018-03-21 CN CN201820384403.4U patent/CN207964078U/en active Active
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