CN206002196U - A kind of oil-immersed power transformer basket vibration monitoring system - Google Patents
A kind of oil-immersed power transformer basket vibration monitoring system Download PDFInfo
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- CN206002196U CN206002196U CN201620988578.7U CN201620988578U CN206002196U CN 206002196 U CN206002196 U CN 206002196U CN 201620988578 U CN201620988578 U CN 201620988578U CN 206002196 U CN206002196 U CN 206002196U
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Abstract
The utility model discloses a kind of oil-immersed power transformer basket vibration monitoring system，Including the optical fiber acceleration vibrating sensor probe being arranged in Transformer Winding，Described optical fiber acceleration vibrating sensor is popped one's head in through transmission cable，Oil tank wall is passed through from fuel tank internal by oil tank wall optical fiber through device and wall bushing，By optical fiber acceleration vibrating sensor probe is arranged in Transformer Winding，Through transmission cable，Oil tank wall optical fiber through device and wall bushing pass through oil tank wall from fuel tank internal，Machine performance and its variation tendency of Transformer Winding can accurately be judged，Solve existing transformator vibration monitor system，In oil tank of transformer surface mount signal of telecommunication vibrating sensor，Vibrate to speculate the vibration of transformer body and the change of machine performance according to fuel tank，The vibration signal that oil-immersed power transformer oil tank surface records is still not clear with the relation of basket vibration signal，Lead to is difficult to judge the machine performance of Transformer Winding and its technical problem of variation tendency.
Description
Technical field
This utility model is related to a kind of vibration monitor system and in particular to a kind of oil-immersed power transformer basket vibration is supervised
Examining system.
Background technology
Power transformer is the hub device of power system, is called the heart of electrical network, and its safe and stable operation is to electrical network
Reliability is significant.Operationally, unshakable in one's determination and winding is subject to alternating electromagnetic force and magnetostrictive force to transformator respectively
Act on and produce vibration it is possible to there is the serious winding failures such as winding deformation, insulation abrasion, or even short circuit.Statistics shows,
Because the transformer fault that winding deformation causes occupies higher ratio it is therefore necessary to carry out online to the machine performance of winding
Monitoring and assessment.
Method currently used for detection deformation of transformer winding mainly has short-circuit test method, Low Voltage Impulse Method, frequency response
The off-line checking methods such as method, and the on-line monitoring method such as on-line monitoring short-circuit reactance method and online transfer function method.Offline inspection
Survey method is both needed to transformator and releases operation, does not consider the practical situation of transformator in fact it could happen that excessive keeps in repair and unnecessary
Shut down, Transformer Winding defect can not be found in time it is impossible to reflect the mechanical condition of winding in time again；Electrical signal online is monitored,
There is direct electrical connection with power system, to power system, detecting system and testing crew, all exist for security
Threaten.When Transformer Winding occurs mechanical deformation, the Magnetic fluxleakage distribution at this changes, and load current is made jointly with leakage field
Also changed with the basket vibration producing, therefore, transformator vibrates the compression shape of winding signal and Transformer Winding and iron core
State, displacement and deformation state are closely related, and vibration test system and power system do not have electrical link, not affect equipment normal
Run, vibratory drilling method develops rapidly in recent years becomes a kind of important transformator machine performance non electrical quantity monitoring technology.
Due to inside transformer high voltage, strong-electromagnetic field, the environment full of insulating oil, general electric signal sensor is difficult to
Body construction physical index is accurately and reliably detected.Existing transformator vibration monitor system, on oil tank of transformer surface
Paste signal of telecommunication vibrating sensor, vibrate to speculate the vibration of transformer body and the change of machine performance according to fuel tank.Due to
The vibration signal that oil-immersed power transformer oil tank surface records is still not clear with the relation of basket vibration signal, and this method is difficult
To judge machine performance and its variation tendency of Transformer Winding.
Utility model content
This utility model embodiment discloses a kind of oil-immersed power transformer basket vibration monitoring system, solves existing
Transformator vibration monitor system, in oil tank of transformer surface mount signal of telecommunication vibrating sensor, vibrate to speculate according to fuel tank
The vibration of transformer body and the change of machine performance, vibration signal and winding that oil-immersed power transformer oil tank surface records
The relation of vibration signal is still not clear, and led to is difficult to judge the machine performance of Transformer Winding and its technology of variation tendency
Problem.
This utility model embodiment provides a kind of oil-immersed power transformer basket vibration monitoring system, including：Optical fiber
Acceleration vibrating sensor, oil tank wall optical fiber through device, wall bushing, described optical fiber acceleration vibrating sensor includes sensor
Probe and transmission cable, sensor probe is arranged in Transformer Winding, and through transmission cable, by oil tank wall optical fiber through device
Pass through oil tank wall with wall bushing from fuel tank internal.
Alternatively, photoelectric conversion unit, vibration acquisition analyser and Monitor Computer Control System are also included.
Alternatively, sensor probe measured signal is through transmission cable, by oil tank wall optical fiber through device and wall bushing from
Fuel tank internal passes through oil tank wall, is connected with outside photoelectric conversion unit.
Alternatively, photoelectric conversion unit is arranged on one and is placed in the other vertical cabinet of oil-immersed power transformer.
Alternatively, photoelectric conversion unit, the optical signal for passing over optical fiber acceleration transducer is converted to 4-
20mA current signal, delivers to vibration acquisition analyser, then shows again, is stored in Monitor Computer Control System.
Alternatively, optical fiber acceleration vibrating sensor does not contain metal parts, and range is 0-50g.
Alternatively, oil tank wall optical fiber through device is threaded connection and is installed on wall bushing, for fuel tank internal transmission
Optical cable and outside connection.
Alternatively, wall bushing is by being welded or bolted to oil tank wall.
Alternatively, vibration acquisition analyser, for gathering, analyzing and process vibration signal, is connected to upper by netting twine
Machine monitoring system.
Alternatively, Monitor Computer Control System includes the display unit of the vibrational state for real-time display Transformer Winding.
As can be seen from the above technical solutions, this utility model embodiment has advantages below：
This utility model embodiment provides a kind of oil-immersed power transformer basket vibration monitoring system, and it includes optical fiber
Acceleration vibrating sensor, oil tank wall optical fiber through device, wall bushing, described optical fiber acceleration vibrating sensor includes sensor
Probe and transmission cable, sensor probe is arranged in Transformer Winding, and through transmission cable, by oil tank wall optical fiber through device
Pass through oil tank wall with wall bushing from fuel tank internal, by optical fiber acceleration vibrating sensor probe is arranged on Transformer Winding
On, through transmission cable, oil tank wall optical fiber through device and wall bushing pass through oil tank wall from fuel tank internal, can accurately judge transformation
The machine performance of device winding and its variation tendency, solve existing transformator vibration monitor system, on oil tank of transformer surface
Paste signal of telecommunication vibrating sensor, vibrate to speculate the vibration of transformer body and the change of machine performance, oil immersion according to fuel tank
The vibration signal that formula power transformer tank surface records is still not clear with the relation of basket vibration signal, and being difficult to of being led to is sentenced
The machine performance of disconnected Transformer Winding and its technical problem of variation tendency.
Brief description
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or in description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing providing.
Fig. 1 is a kind of structural representation of oil-immersed power transformer basket vibration monitoring system of the present utility model.
1 Transformer Winding；2 optical fiber acceleration transducer probe；3 optical fiber acceleration transducer transmission lights
Cable；4 oil tank wall optical fiber through devices；5 wall bushings；6 photoelectric conversion units；7 vibration acquisition analysers；
8 Monitor Computer Control Systems.
Specific embodiment
This utility model embodiment discloses a kind of oil-immersed power transformer basket vibration monitoring system, solves existing
Transformator vibration monitor system, in oil tank of transformer surface mount signal of telecommunication vibrating sensor, vibrate to speculate according to fuel tank
The vibration of transformer body and the change of machine performance, vibration signal and winding that oil-immersed power transformer oil tank surface records
The relation of vibration signal is still not clear, and led to is difficult to judge the machine performance of Transformer Winding and its technology of variation tendency
Problem.
Below in conjunction with accompanying drawing, this utility model is described in detail：Shown in Fig. 1, a kind of oil described in the utility model
Immersion Winding in Power Transformer vibration monitor system, it includes the optical fiber acceleration vibrating sensing being arranged in Transformer Winding 1
Device probe 2, described optical fiber acceleration vibrating sensor probe 2 through transmission cable 3, by oil tank wall optical fiber through device 4 with wear
Wall sleeve 5 passes through oil tank wall from fuel tank internal, is connected to photoelectric conversion unit 6, and this photoelectric conversion unit 6 is by photoelectric signal transformation
The current signal becoming 4-20mA delivers to vibration acquisition analyser 7, through signals collecting, analyzing and processing after, show, be stored in upper
Machine monitoring system 8.
Shown in Fig. 1, optical fiber acceleration vibrating sensor described in the utility model vibrates for EVA optical fiber acceleration, amount
Journey is 0-50g, and EVA is ethylene-vinyl acetate copolymer, and described vibration acquisition analyser 7 is Bently 408DSPi signal
Acquisition system, described vibration acquisition analyser 7 is connected to Monitor Computer Control System 8 by netting twine.
Photoelectric conversion unit 6 described in the utility model is specially arranged on one and is placed in the vertical of oil-immersed power transformer side
In casing.
Wall bushing 5 described in the utility model is bolt-connected on oil tank wall, has above and oil tank wall optical fiber
8 holes that through device 4 matches, the oil pressure that described wall bushing 5 can bear is 2800kPa.
This utility model embodiment provides a kind of oil-immersed power transformer basket vibration monitoring system, including：Optical fiber
Acceleration vibrating sensor, oil tank wall optical fiber through device 4, wall bushing 5, described optical fiber acceleration vibrating sensor includes sensing
Device probe 2 and transmission cable 3, sensor probe 2 is arranged in Transformer Winding 1, and through transmission cable 3, by oil tank wall light
Fine through device 4 and wall bushing 5 pass through oil tank wall from fuel tank internal.
Further,
Oil-immersed power transformer basket vibration monitoring system, also includes photoelectric conversion unit 6, vibration acquisition analyser 7
With Monitor Computer Control System 8.
Further,
Sensor probe 2 measured signal through transmission cable 3, by oil tank wall optical fiber through device 4 and wall bushing 5 from fuel tank
Oil tank wall is passed through in inside, is connected with outside photoelectric conversion unit 6.
Further,
Photoelectric conversion unit 6 is arranged on one and is placed in the other vertical cabinet of oil-immersed power transformer, photoelectric conversion unit 6
The optical signal that optical fiber acceleration transducer is passed over is converted to 4-20mA current signal, delivers to vibration acquisition analyser 7, so
Show again afterwards, be stored in Monitor Computer Control System 8.
Further,
Optical fiber acceleration vibrating sensor adopts high temperature resistance high-performance chemical polymeric material material, without any metal portion
Part, is optical fiber acceleration vibration, and range is 0-50g.
Further,
Oil tank wall optical fiber through device 4 is threaded connection and is installed on wall bushing 5, for fuel tank internal transmission cable 3
With outside connection.
Further,
Wall bushing 5 is had and oil tank wall optical fiber insertion above by being welded or bolted to oil tank wall, wall bushing 5
8 holes that device 4 matches, the oil pressure that wall bushing can bear is 2800kPa.
Further,
Vibration acquisition analyser 7 is Bently 408DSPi signal acquiring system, collection, analysis and process vibration signal,
Monitor Computer Control System 8 is connected to by netting twine.
Further,
Monitor Computer Control System 8 shows the vibrational state of Transformer Winding 1 in real time.
This utility model embodiment provides a kind of oil-immersed power transformer basket vibration monitoring system, and it includes optical fiber
Acceleration vibrating sensor, oil tank wall optical fiber through device 4, wall bushing 5, described optical fiber acceleration vibrating sensor includes sensing
Device probe 2 and transmission cable 3, sensor probe 2 is arranged in Transformer Winding 1, and through transmission cable 3, by oil tank wall light
Fine through device 4 and wall bushing 5 pass through oil tank wall from fuel tank internal, by installing optical fiber acceleration vibrating sensor probe 2
In Transformer Winding 1, through transmission cable 3, oil tank wall optical fiber through device 4 and wall bushing 5 pass through oil tank wall from fuel tank internal,
Machine performance and its variation tendency of Transformer Winding 1 can accurately be judged, solve existing transformator vibration monitor system,
In oil tank of transformer surface mount signal of telecommunication vibrating sensor, vibrate to speculate vibration and the machinery of transformer body according to fuel tank
The change of state, the vibration signal that oil-immersed power transformer oil tank surface records is still not clear with the relation of basket vibration signal
Really, led to is difficult to judge the machine performance of Transformer Winding and its technical problem of variation tendency.
Above a kind of oil-immersed power transformer basket vibration monitoring system provided by the utility model is carried out in detail
Thin introduce, for one of ordinary skill in the art, according to the thought of this utility model embodiment, in specific embodiment and should
With all will change in scope, in sum, this specification content should not be construed as to restriction of the present utility model.
Claims (10)
1. a kind of oil-immersed power transformer basket vibration monitoring system, including optical fiber acceleration vibrating sensor, its feature exists
In also including oil tank wall optical fiber through device, wall bushing, described optical fiber acceleration vibrating sensor includes sensor probe and biography
Lose cable, described sensor probe is arranged in Transformer Winding, and through described transmission cable, passed through by described oil tank wall optical fiber
Logical device and described wall bushing pass through oil tank wall from fuel tank internal.
2. oil-immersed power transformer basket vibration monitoring system according to claim 1 is it is characterised in that also include light
Electric converting unit, vibration acquisition analyser and Monitor Computer Control System.
3. oil-immersed power transformer basket vibration monitoring system according to claim 2 is it is characterised in that described sensing
Device pops one's head in measured signal through described transmission cable, by described oil tank wall optical fiber through device and described wall bushing from fuel tank internal
Pass through oil tank wall, be connected with outside described photoelectric conversion unit.
4. oil-immersed power transformer basket vibration monitoring system according to claim 3 is it is characterised in that described photoelectricity
Converting unit is arranged on one and is placed in the other vertical cabinet of described oil-immersed power transformer.
5. oil-immersed power transformer basket vibration monitoring system according to claim 4 is it is characterised in that described photoelectricity
Converting unit, the optical signal for passing over described optical fiber acceleration transducer is converted to 4-20mA current signal, delivers to
Described vibration acquisition analyser, then shows again, is stored in described Monitor Computer Control System.
6. oil-immersed power transformer basket vibration monitoring system according to claim 5 is it is characterised in that described optical fiber
Acceleration vibrating sensor does not contain metal parts, and range is 0-50g.
7. oil-immersed power transformer basket vibration monitoring system according to claim 6 is it is characterised in that described fuel tank
Wall optical fiber through device is threaded connection and is installed on described wall bushing, for transmission cable described in fuel tank internal and outside
Connect.
8. oil-immersed power transformer basket vibration monitoring system according to claim 7 is it is characterised in that described through walls
Sleeve pipe is by being welded or bolted to described oil tank wall.
9. oil-immersed power transformer basket vibration monitoring system according to claim 8 is it is characterised in that described vibration
Acquisition and analysis instrument, for gathering, analyzing and process vibration signal, is connected to described Monitor Computer Control System by netting twine.
10. oil-immersed power transformer basket vibration monitoring system according to claim 9 is it is characterised in that on described
Position machine monitoring system includes the display unit for the real-time vibrational state showing described Transformer Winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620988578.7U CN206002196U (en) | 2016-08-30 | 2016-08-30 | A kind of oil-immersed power transformer basket vibration monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620988578.7U CN206002196U (en) | 2016-08-30 | 2016-08-30 | A kind of oil-immersed power transformer basket vibration monitoring system |
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| Publication Number | Publication Date |
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| CN206002196U true CN206002196U (en) | 2017-03-08 |
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| CN201620988578.7U Active CN206002196U (en) | 2016-08-30 | 2016-08-30 | A kind of oil-immersed power transformer basket vibration monitoring system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576379A (en) * | 2017-08-07 | 2018-01-12 | 国家电网公司 | A kind of oil-filled transformer body noise-monitoring equipment and method |
| CN111458583A (en) * | 2020-04-15 | 2020-07-28 | 广东电网有限责任公司 | Distribution network transformer vibration on-line monitoring system |
| CN112834148A (en) * | 2021-03-11 | 2021-05-25 | 云南电网有限责任公司电力科学研究院 | Winding model beneficial to axial and radial vibration test |
| CN113532775A (en) * | 2021-06-03 | 2021-10-22 | 南方电网科学研究院有限责任公司 | Oil-immersed power transformer detection system |
| US11585692B2 (en) * | 2019-10-24 | 2023-02-21 | Palo Alto Research Center Incorporated | Fiber optic sensing system for grid-based assets |
| US11719559B2 (en) | 2019-10-24 | 2023-08-08 | Palo Alto Research Center Incorporated | Fiber optic sensing system for grid-based assets |
-
2016
- 2016-08-30 CN CN201620988578.7U patent/CN206002196U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576379A (en) * | 2017-08-07 | 2018-01-12 | 国家电网公司 | A kind of oil-filled transformer body noise-monitoring equipment and method |
| US11585692B2 (en) * | 2019-10-24 | 2023-02-21 | Palo Alto Research Center Incorporated | Fiber optic sensing system for grid-based assets |
| US11719559B2 (en) | 2019-10-24 | 2023-08-08 | Palo Alto Research Center Incorporated | Fiber optic sensing system for grid-based assets |
| CN111458583A (en) * | 2020-04-15 | 2020-07-28 | 广东电网有限责任公司 | Distribution network transformer vibration on-line monitoring system |
| CN112834148A (en) * | 2021-03-11 | 2021-05-25 | 云南电网有限责任公司电力科学研究院 | Winding model beneficial to axial and radial vibration test |
| CN113532775A (en) * | 2021-06-03 | 2021-10-22 | 南方电网科学研究院有限责任公司 | Oil-immersed power transformer detection system |
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