CN207067271U - A kind of Buchholz relay oil stream flow velocity on-Line Monitor Device - Google Patents
A kind of Buchholz relay oil stream flow velocity on-Line Monitor Device Download PDFInfo
- Publication number
- CN207067271U CN207067271U CN201720785476.XU CN201720785476U CN207067271U CN 207067271 U CN207067271 U CN 207067271U CN 201720785476 U CN201720785476 U CN 201720785476U CN 207067271 U CN207067271 U CN 207067271U
- Authority
- CN
- China
- Prior art keywords
- flow velocity
- oil stream
- stream flow
- module
- data reception
- 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.)
- Active
Links
Abstract
It the utility model is related to the technical field of Buchholz relay detection, more specifically, it is related to a kind of Buchholz relay oil stream flow velocity on-Line Monitor Device, including oil stream flow velocity acquisition module, pressure acquisition module, data reception module and control discrimination module, pressure acquisition module and the signal of oil stream flow velocity acquisition module collection upload to control discrimination module through main transformer public control case again by being wirelessly transmitted to after data reception module.The utility model can be monitored in real time to the pressure in the single-phase autotransformer course of work, oil stream flow velocity, three side electric currents and zero-sequence current, and transfer data to monitoring backstage, background monitoring personnel can judge that transformer whether there is failure according to the pressure of collection, oil stream flow velocity, three side electric currents and zero-sequence current, whether and it is reasonable gas setting valve can be verified in the case of current break, and device is simple, easy to operate, the probability of happening of electric power accident can be greatly reduced, there is good social benefit.
Description
Technical field
The technical field of Buchholz relay detection is the utility model is related to, more particularly, to a kind of Buchholz relay oil
Flow flow velocity on-Line Monitor Device.
Background technology
In power system, transformer is a kind of extremely important power equipment, and oil-filled transformer is in China's power train
Using the most universal in system.When earth fault occurs outside area for transformer or during by being struck by lightning, flow through in transformer current have it is negative
Charged current and failed shorted electric current；When the plan of circuit, adjacent main transformer and reactor stops the change of power transmission and load, flow through
The electric current of main transformer is undergone mutation.When the electric current for flowing through transformer is undergone mutation, inside transformer oil stream flow velocity can be accelerated.Gas
Protection device of the relay as transformer, when oil stream flow velocity reaches the grave gas setting valve of Buchholz relay, make gas after
The contact action of electrical equipment, connects the control loop specified, and sends signal alarm in time（Light gas）Or starting protection element is certainly
Dynamic excision transformer（Grave gas）.
Buchholz relay is it some times happens that malfunction, the malfunction of Buchholz relay can cause power grid accident.Work as grave gas
, it is necessary to carry out correlation test to main transformer to determine whether to occur inside main transformer short circuit or other failures when malfunctioning, if
Determine that failure is not present in main transformer, prevent from flowing through transformer current hair often through the grave gas setting valve for improving Buchholz relay
Grave gas malfunction caused by raw mutation.However, the experience that the setting valve of current Buchholz relay often relies on operation of power networks is come
Adjust, whether gas setting valve is reasonable, and main transformer malfunction concrete reason does not have the data supporting responded.Therefore, it is necessary to
It is proposed a kind of monitoring device, can monitoring current, pressure, flow velocity in real time instantaneous value, judge that transformer whether there is hidden danger, in advance
Survey transformer and whether there is failure, whether Checking and Adjustment value is reasonable, and data support can be provided for crash analysis.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided a kind of Buchholz relay oil stream flow velocity is online
Monitoring device, is capable of the instantaneous value of monitoring pressure in real time and flow velocity, and can judge that transformer is according to the parameter of the real time measure
No hidden danger to be present, device is simple, simple operation, greatly reduces grave gas malfunction probability, reduces the generation of electric power accident.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of Buchholz relay oil stream flow velocity on-Line Monitor Device is provided, including single-phase autotransformer body, gas after
Electrical equipment and main transformer public control case, the Buchholz relay oil stream flow velocity on-Line Monitor Device also include pressure acquisition module, oil
Flow flow velocity acquisition module, data reception module and control discrimination module, the pressure acquisition module, oil stream flow velocity acquisition module with
By communication connection between the data reception module, pass through communication link between the data reception module and the control discrimination module
Connect, the first signal of the pressure acquisition module collection passes through wireless with the secondary signal that the oil stream flow velocity acquisition module gathers
Data reception module is transferred to, the 3rd signal that the data reception module receives uploads to control by main transformer public control case
Discrimination module.
The utility model Buchholz relay oil stream flow velocity on-Line Monitor Device include single-phase autotransformer body, gas after
Electrical equipment and main transformer public control case, it is additionally provided with oil stream flow velocity acquisition module, pressure acquisition module, data reception module and control and sentences
Other module, the first signal of pressure acquisition module collection pass through wireless with the secondary signal that the oil stream flow velocity acquisition module gathers
Data reception module is transferred to, the 3rd signal that the data reception module receives uploads to control by main transformer public control case
Discrimination module.The setting of pressure acquisition module is that the setting of oil stream flow velocity acquisition module is to adopt in order to gather pressure signal
Collect oil stream flow velocity signal, the setting of data reception module is that the setting of discrimination module is controlled for reception signal is to judge
Whether oil stream flow velocity safety and controls whether sending for alarm signal.
Preferably, the first single-phase autotransformer, the second single-phase self-coupling are provided with the single-phase autotransformer body
Transformer and the 3rd single-phase autotransformer, the data reception module are located at the inside of main transformer public control case, and including the
One data reception module, the second data reception module and the 3rd data reception module, first data reception module with it is described
First single-phase autotransformer is engaged, and second data reception module is engaged with second single-phase autotransformer,
3rd data reception module is engaged with the 3rd single-phase autotransformer.Three data reception modules not only receive pressure
Power acquisition module and the signal of oil stream flow velocity acquisition module collection, the electric current letter of three single-phase autotransformers can also be received
Number.
Preferably, first signal is pressure signal, and the secondary signal is oil stream flow velocity signal, the 3rd signal
Including the first signal and secondary signal.The pressure signal of pressure acquisition module collection and the signal of oil stream flow velocity acquisition module collection
After being wirelessly transmitted to data reception module, control discrimination module is resent to, the signal for being easy to gather in real time is sent to control and sentenced
Other module corresponding is differentiated and control action with making；When the first single-phase autotransformer, the second single-phase autotransformer and
Three single-phase autotransformer three-phase currents and pressure difference value are within given threshold, and instantaneous oil stream flow velocity difference exceedes setting
During threshold value, differentiate that control module sends the too high signal of certain phase instantaneous velocity to the backstage of master control room.
Preferably, the 3rd signal also includes the first single-phase autotransformer, the second single-phase autotransformer and the 3rd
Three side electric currents of single-phase autotransformer and the current signal of zero-sequence current.So it is easy to current signal to be also sent to control in real time
Judgement system processed, when the first single-phase autotransformer, the second single-phase autotransformer and the 3rd single-phase autotransformer three-phase
When current differential exceedes given threshold, differentiate that control module sends the excessive signal of electric current to the monitoring backstage of master control room.
Preferably, the pressure acquisition module is powered using the first photovoltaic storage battery, and the oil stream flow velocity acquisition module is adopted
Powered with the second photovoltaic storage battery.Using photovoltaic storage battery power supply can not only avoid power wiring tape come hidden danger, Er Qiegeng
Add energy-conserving and environment-protective.
Preferably, the second photovoltaic storage battery is on cube galvanized steel support member, the cube galvanized steel support member
It is inverted U shape, is arranged on the top of Buchholz relay.Cube galvanized steel supporting piece structure is firm, it is not easy to it is corroded, it is persistently resistance to
With；Inverted U-shaped structure design allows rain cover of the support member as Buchholz relay, so as to ensure Buchholz relay and adopt
The stable operation of acquisition means.
Preferably, the pressure acquisition module is respectively arranged on the first single-phase autotransformer, the second single-phase autotransformer
With in four planes of the 3rd single-phase autotransformer.Pressure acquisition module is placed in four planes of transformer, placement
Number is determined according to transformer capacity and volume, to ensure the accuracy of the pressure value of collection.
Preferably, the control discrimination module can send alarm signal to monitoring personnel.When three-phase current and pressure differential
Value is set within given threshold, and when instantaneous oil stream flow velocity difference exceedes given threshold when the current differential of three-phase exceedes
During threshold value, differentiation control module can send certain alarm letter that phase instantaneous velocity is too high or electric current is too high to the backstage of master control room
Number.
Compared with prior art, the beneficial effects of the utility model are：
The utility model Buchholz relay oil stream flow velocity on-Line Monitor Device, including single-phase autotransformer body, gas
Relay and main transformer public control case, the Buchholz relay oil stream flow velocity on-Line Monitor Device also include pressure acquisition module,
Oil stream flow velocity acquisition module, data reception module and control discrimination module, the pressure acquisition module are adopted with the oil stream flow velocity
By signal by being wirelessly transmitted to data reception module, the 3rd letter that the data reception module receives after collection module collection signal
Number control discrimination module is uploaded to by main transformer public control case.The utility model can monitor three side electric currents, zero sequence electricity in real time
The instantaneous value of stream, pressure and flow velocity, and can judge that transformer whether there is hidden danger according to the parameter of the real time measure, and can be
It is whether reasonable that gas setting valve is verified when electric current is undergone mutation, providing data for crash analysis supports that device is simple, and operation is just
Victory, greatly reduce grave gas malfunction probability, reduce the generation of electric power accident.
Brief description of the drawings
Fig. 1 is the schematic diagram of Buchholz relay oil stream flow velocity on-Line Monitor Device.
Embodiment
The utility model is further described with reference to embodiment.Wherein, being given for example only property of accompanying drawing
Illustrate, expression is only schematic diagram, rather than pictorial diagram, it is impossible to is interpreted as the limitation to this patent；In order to which this reality is better described
With new embodiment, some parts of accompanying drawing have omission, zoomed in or out, and do not represent the size of actual product；To ability
For field technique personnel, some known features and its explanation may be omitted and will be understood by accompanying drawing.
Same or analogous label corresponds to same or analogous part in the accompanying drawing of the utility model embodiment；In this practicality
In new description, it is to be understood that if thering is the orientation of the instructions such as term " on ", " under ", "left", "right" or the position relationship to be
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore retouched in accompanying drawing
State term the being given for example only property explanation of position relationship, it is impossible to the limitation to this patent is interpreted as, for the common skill of this area
For art personnel, the concrete meaning of above-mentioned term can be understood as the case may be.
Embodiment 1
It is as shown in Figure 1 the first embodiment of Buchholz relay oil stream flow velocity on-Line Monitor Device, including single-phase self-coupling becomes
Depressor body 1, Buchholz relay 3 and main transformer public control case 6, Buchholz relay oil stream flow velocity on-Line Monitor Device also include pressure
Power acquisition module 2, oil stream flow velocity acquisition module 4, data reception module and control discrimination module, pressure acquisition module 2, oil stream stream
By communication connection between fast acquisition module 4 and data reception module, pass through between data reception module and the control discrimination module
Communication connection, the first signal that pressure acquisition module 2 gathers pass through wireless with the secondary signal that oil stream flow velocity acquisition module 4 gathers
Data reception module is transferred to, the 3rd signal that data reception module receives uploads to control by main transformer public control case and differentiated
Module.Specifically, the first single-phase autotransformer, the second single-phase autotransformer are provided with single-phase autotransformer body 1
With the 3rd single-phase autotransformer, data reception module includes the first data reception module 7, the second data reception module 8 and the
Three data reception modules 9, the first data reception module 7 are engaged with first single-phase autotransformer, the second data receiver
Module 8 is engaged with second single-phase autotransformer, and the 3rd data reception module 9 and the 3rd single-phase autotransformer match
Close.Three data reception modules not only receive the signal that pressure acquisition module 2 and oil stream flow velocity acquisition module 4 gather, can be with
Receive the current signal of three single-phase autotransformers.
Wherein, the first signal is pressure signal, and secondary signal is oil stream flow velocity signal, the 3rd signal include the first signal with
Secondary signal, in addition to the first single-phase autotransformer, the three of the second single-phase autotransformer and the 3rd single-phase autotransformer
The current signal of side electric current and zero-sequence current.When the first single-phase autotransformer, the second single-phase autotransformer and the 3rd are single-phase
When auto-transformer current differential exceedes given threshold, it is excessive to differentiate that control module to the monitoring backstage of master control room sends electric current
Signal；When three-phase current and pressure difference value are within given threshold, and instantaneous oil stream flow velocity difference exceedes given threshold, sentence
Other control module sends the too high signal of certain phase instantaneous velocity to the backstage of master control room.
In addition, pressure acquisition module 2 is powered using the first photovoltaic storage battery, the oil stream flow velocity acquisition module 4 is using the
Two photovoltaic storage batteries are powered.Using photovoltaic storage battery power supply can not only avoid powering wiring tape come hidden danger, and more supernumerary segment
Can environmental protection.On cube galvanized steel support member, the cube galvanized steel support member is inverted U shape second photovoltaic storage battery,
It is arranged on the top of Buchholz relay 3.Cube galvanized steel supporting piece structure is firm, it is not easy to it is corroded, durable；U
The structure design of shape allows rain cover of the support member as Buchholz relay 3, so as to ensure that Buchholz relay 3 and collection fill
The stable operation put.Pressure acquisition module 2 is respectively arranged on the first single-phase autotransformer, the second single-phase autotransformer and the 3rd
In four planes of single-phase autotransformer.Pressure acquisition module 2 is placed in four planes of transformer, placement it is individual several
Determine according to transformer capacity and volume, to ensure the accuracy of the pressure value of collection.Control discrimination module can be to monitoring personnel
Send alarm signal.When three-phase current and pressure difference value are within given threshold, and instantaneous oil stream flow velocity difference exceedes setting
During threshold value, when the current differential of three-phase exceedes given threshold, differentiate that control module can send certain to the backstage of master control room
The alarm signal that phase instantaneous velocity is too high or electric current is too high.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms.There is no need and unable to give all embodiments
It is exhaustive.All made within spirit of the present utility model and principle all any modification, equivalent and improvement etc., should be included in
Within the protection domain of the utility model claims.
Claims (8)
1. a kind of Buchholz relay oil stream flow velocity on-Line Monitor Device, including single-phase autotransformer body（1）, Buchholz relay
（3）With main transformer public control case（6）, it is characterised in that the Buchholz relay oil stream flow velocity on-Line Monitor Device also includes pressure
Power acquisition module（2）, oil stream flow velocity acquisition module（4）, data reception module and control discrimination module, the pressure acquisition module
（2）, oil stream flow velocity acquisition module（4）Pass through communication connection, the data reception module and institute between the data reception module
State control discrimination module between by communication connection, the pressure acquisition module（2）First signal of collection and the oil stream flow velocity
Acquisition module（4）The secondary signal of collection by being wirelessly transmitted to data reception module, the data reception module receive the
Three signals upload to control discrimination module by main transformer public control case.
2. Buchholz relay oil stream flow velocity on-Line Monitor Device according to claim 1, it is characterised in that it is described it is single-phase from
Coupling transformer body（1）In be provided with the first single-phase autotransformer, the second single-phase autotransformer and the 3rd single-phase self-coupling become
Depressor, the data reception module are located at main transformer public control case（6）Inside, the data reception module includes the first data
Receiving module（7）, the second data reception module（8）With the 3rd data reception module（9）, first data reception module（7）
It is engaged with first single-phase autotransformer, second data reception module（7）With the second single-phase self-coupling transformation
Device is engaged, the 3rd data reception module（7）It is engaged with the 3rd single-phase autotransformer.
3. Buchholz relay oil stream flow velocity on-Line Monitor Device according to claim 1, it is characterised in that first letter
Number it is pressure signal, the secondary signal is oil stream flow velocity signal, and the 3rd signal includes the first signal and secondary signal.
4. the Buchholz relay oil stream flow velocity on-Line Monitor Device according to claim 1 or 3, it is characterised in that described
Three sides electricity of three signals also including the first single-phase autotransformer, the second single-phase autotransformer and the 3rd single-phase autotransformer
The current signal of stream and zero-sequence current.
5. Buchholz relay oil stream flow velocity on-Line Monitor Device according to claim 1, it is characterised in that the pressure is adopted
Collect module（2）Powered using the first photovoltaic storage battery, the oil stream flow velocity acquisition module（4）Supplied using the second photovoltaic storage battery
Electricity.
6. Buchholz relay oil stream flow velocity on-Line Monitor Device according to claim 5, it is characterised in that second light
On cube galvanized steel support member, the cube galvanized steel support member is inverted U shape overhead accumulator, is arranged on gas relay
Device（3）Top.
7. Buchholz relay oil stream flow velocity on-Line Monitor Device according to claim 1 or 5, it is characterised in that the pressure
Power acquisition module（4）It is respectively arranged on the first single-phase autotransformer, the second single-phase autotransformer and the 3rd single-phase self-coupling transformation
In four planes of device.
8. Buchholz relay oil stream flow velocity on-Line Monitor Device according to claim 1, it is characterised in that the control is sentenced
Other module can send alarm signal to monitoring personnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720785476.XU CN207067271U (en) | 2017-07-01 | 2017-07-01 | A kind of Buchholz relay oil stream flow velocity on-Line Monitor Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720785476.XU CN207067271U (en) | 2017-07-01 | 2017-07-01 | A kind of Buchholz relay oil stream flow velocity on-Line Monitor Device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207067271U true CN207067271U (en) | 2018-03-02 |
Family
ID=61507841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720785476.XU Active CN207067271U (en) | 2017-07-01 | 2017-07-01 | A kind of Buchholz relay oil stream flow velocity on-Line Monitor Device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207067271U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107703797A (en) * | 2017-09-25 | 2018-02-16 | 国网福建省电力有限公司 | Oil stream flow velocity disturbance electric field simulator and its emulation mode inside a kind of main transformer |
| CN109768522A (en) * | 2019-02-21 | 2019-05-17 | 西安交通大学 | The digital protection method of for transformer loaded tap-off oil circuit breaker |
| CN110174137A (en) * | 2019-05-07 | 2019-08-27 | 西安交通大学 | A kind of transformer monitoring device and method based on non electrical quantity comprehensive characteristics information |
| CN111795868A (en) * | 2020-07-08 | 2020-10-20 | 广东电网有限责任公司 | Gas collecting device and using method thereof |
-
2017
- 2017-07-01 CN CN201720785476.XU patent/CN207067271U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107703797A (en) * | 2017-09-25 | 2018-02-16 | 国网福建省电力有限公司 | Oil stream flow velocity disturbance electric field simulator and its emulation mode inside a kind of main transformer |
| CN107703797B (en) * | 2017-09-25 | 2019-06-07 | 国网福建省电力有限公司 | Oil stream flow velocity disturbance electric field simulator and its emulation mode inside a kind of main transformer |
| CN109768522A (en) * | 2019-02-21 | 2019-05-17 | 西安交通大学 | The digital protection method of for transformer loaded tap-off oil circuit breaker |
| CN110174137A (en) * | 2019-05-07 | 2019-08-27 | 西安交通大学 | A kind of transformer monitoring device and method based on non electrical quantity comprehensive characteristics information |
| WO2020224553A1 (en) * | 2019-05-07 | 2020-11-12 | 北京中瑞和电气有限公司 | Transformer monitoring apparatus and method based on non-electric-quantity comprehensive characteristic information |
| US11726145B2 (en) | 2019-05-07 | 2023-08-15 | Beijing Zhongruthe Electrical Co., Ltd | Transformer monitoring apparatus and method based on non-electricity comprehensive characteristic information |
| CN111795868A (en) * | 2020-07-08 | 2020-10-20 | 广东电网有限责任公司 | Gas collecting device and using method thereof |
| CN111795868B (en) * | 2020-07-08 | 2022-04-12 | 广东电网有限责任公司 | Gas collecting device and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207067271U (en) | A kind of Buchholz relay oil stream flow velocity on-Line Monitor Device | |
| US10794945B2 (en) | Method for detecting and locating single-phase ground fault on low current grounded power-distribution network | |
| CN107144757A (en) | A kind of Buchholz relay oil stream flow velocity on-Line Monitor Device and method | |
| CN104076243B (en) | A kind of small current neutral grounding one-phase earthing failure in electric distribution network detection indicating means and equipment | |
| US10222409B2 (en) | Method and system for detecting and locating single-phase ground fault on low current grounded power-distribution network | |
| CN102590700B (en) | Based on pole line fast fault locating method and the device of time synchronized | |
| CN101738565B (en) | Adaptive fault indicator | |
| CN102521944B (en) | A kind of method of high-tension electricity equipment non-contact intelligent early warning and early warning system | |
| CN1707277B (en) | Distribution line fault monitoring system | |
| CN102116823A (en) | System for automatically judging and positioning faults of automatic blocking and continuous railway power lines in railway distribution network | |
| CN106970304A (en) | The transmission line malfunction tuning on-line monitoring system of simple type | |
| CN106357793A (en) | Waterlogging-preventing early-warning method and device for power distribution facility | |
| CN206585391U (en) | A kind of fault monitoring system with recording type fault detector | |
| CN104714142B (en) | CT, PT wire break detection method suitable for intelligence/digital transformer substation | |
| CN210626591U (en) | Intelligent alarm device for monitoring state of low-voltage distribution substation area | |
| CN204497849U (en) | A kind ofly take into account measure and control device that is centralized, formula feeder automation on the spot | |
| CN103915900A (en) | Rail transit power monitoring direct current load monitoring method | |
| CN202025060U (en) | Automatic fault determining and positioning system of railway distribution network automatic blocking and continuous transmission lines | |
| CN201780348U (en) | Fault indicator and online line-fault monitoring system | |
| CN103412260A (en) | Voltage sag generator | |
| CN202471271U (en) | On-line temperature measurement system for high-voltage switch cabinet | |
| CN205450179U (en) | Failure monitoring system based on distribution network monitored control system | |
| CN105675062A (en) | Electric power tower pole fault remote monitoring scheme and device | |
| CN206020586U (en) | Detecting fault line for un-ground neutral power system | |
| CN202433480U (en) | Fast fault location device of overhead lines based on time synchronization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |