CN106052807A - Three-vibration-sensor-based oil level fault diagnosis apparatus for oil-immersed power transformer - Google Patents
Three-vibration-sensor-based oil level fault diagnosis apparatus for oil-immersed power transformer Download PDFInfo
- Publication number
- CN106052807A CN106052807A CN201610577973.0A CN201610577973A CN106052807A CN 106052807 A CN106052807 A CN 106052807A CN 201610577973 A CN201610577973 A CN 201610577973A CN 106052807 A CN106052807 A CN 106052807A
- Authority
- CN
- China
- Prior art keywords
- oil
- vibrating sensor
- transformer
- oil level
- mounting seat
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/20—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Thermal Sciences (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a three-vibration-sensor-based oil level fault diagnosis apparatus for an oil-immersed power transformer, so that a problem that the existing oil level indicator fails to monitor an oil surface of an oil-immersed power transformer in operation can be solved. An oil level testing box (5) is arranged on an outer side surface of transformer expansion tank (3); a vibration sensor mounting seat (7) is arranged on the oil level testing box (5) at one side of an oil level measuring dial gauge (17) movably; an electromagnet (21) is arranged on the vibration sensor mounting seat (7); and a coil (16) arranged on the electromagnet (21) is connected with an electric controller (11) electrically. A first spring (19) is arranged on the vibration sensor mounting seat (7); the outer end of the first spring (19) is connected with a first vibration sensor (14) connected with a vibration frequency monitoring instrument (10) by a signal transmission line (9) electrically. According to the invention, testing and diagnosis can be carried out on the premise that the power of the transformer is not interrupted.
Description
Technical field
The present invention relates to a kind of oil-filled transformer vacation oil level diagnostic equipment and diagnostic method, for oil-immersed type power transformation
There is identification during false oil level in device.
Background technology
In power industry, use oil-immersed power transformer in a large number, and conservator is the vitals of transformator.Work as transformation
When device oil temperature raises, the oil in fuel tank can expand accordingly, makes the oil level in conservator raise accordingly, now the portion gas in conservator
Discharge through respiratory organ；When temperature of oil in transformer declines, the oil in fuel tank can shrink accordingly, and the oil level in conservator can decline accordingly,
The now internal suction part gas of conservator.Air is discharged or sucked to installation for transformer by respiratory organ, is formed and breathes work normally
With, reach to keep the pressure balanced purpose of oil tank of transformer.On conservator, generally it is provided with an oil level indicator, is used to refer to oil
The height of oil level in pillow, it is ensured that the safe operation of transformator.Oil-immersed power transformer run in, oil level indicator it sometimes appear that
Fault or conservator capsule occur abnormal, and oil level indicator instruction is not inconsistent with actual oil level, form false oil level phenomenon, cause operation
In the supervision distortion of oil-immersed power transformer pasta, transformator oil spout or oil starvation can be caused time serious, even cause transformation
Device is stopped transport or insulation breakdown is damaged.
Summary of the invention
The invention provides a kind of oil-immersed power transformer vacation oil level diagnostic equipment based on three vibrating sensors, solve
Existing oil level indicator of having determined monitors the technical problem lost efficacy to operating oil-immersed power transformer pasta.
The present invention is to solve above technical problem by the following technical programs:
A kind of oil-immersed power transformer vacation oil level diagnostic equipment based on three vibrating sensors, including the transformation being currently running
Device, frequency of vibration monitor and electric controller, be provided with oil tank of transformer, on the transformator being currently running on oil tank of transformer
It is respectively arranged with bushing shell for transformer and installation for transformer, installation for transformer is provided with oil level indicator, outside installation for transformer
It is provided with oil level testing cassete on side plane, oil level testing cassete is respectively arranged with oil-level measurement graduation apparatus, carve at oil-level measurement
It is movably set with vibrating sensor mounting seat on the oil level testing cassete of degree table side, vibrating sensor mounting seat is provided with electricity
Magnet, the coil on electric magnet is electrically connected with electric controller, is provided with the first spring in vibrating sensor mounting seat,
The outer end of the first spring connects the first vibrating sensor, the probe of the first vibrating sensor and the medial plane of installation for transformer
Abutting against together, the first vibrating sensor is electrically connected by signal transmission line with frequency of vibration monitor.
It is provided with the second spring, outside the second spring in vibrating sensor mounting seat above the first vibrating sensor
End connection has the second vibrating sensor, together with the probe of the second vibrating sensor abuts against with the medial plane of installation for transformer；
Being provided with the 3rd spring in vibrating sensor mounting seat below the first vibrating sensor, connecting in the outer end of the 3rd spring has
3rd vibrating sensor, together with the probe of the 3rd vibrating sensor abuts against with the medial plane of installation for transformer；Second vibration
Sensor and the 3rd vibrating sensor are electrically connected with electric controller respectively；Oil level testing cassete is provided with motor,
Motor is mechanically coupled together with vibrating sensor mounting seat by drive mechanism, and motor and electric controller are by controlling
Line is electrically connected.
A kind of oil-immersed power transformer vacation oil level diagnostic method based on three vibrating sensors, comprises the following steps:
The first step, oil level testing cassete is set on the medial plane of installation for transformer, oil level testing cassete is respectively provided with oil level
Measurement scales table, on the oil level testing cassete of oil-level measurement graduation apparatus side, activity arranges vibrating sensor mounting seat, in vibration
Arranging electric magnet on sensor installation seat, the coil on electric magnet is electrically connected with electric controller, installs at vibrating sensor
First spring is set on Zuo, connects the first vibrating sensor, the probe of the first vibrating sensor and change in the outer end of the first spring
The medial plane of depressor conservator abuts against together, and the first vibrating sensor is electrically connected by signal transmission line with frequency of vibration monitor
It is connected together；
Second step, vibrating sensor mounting seat is moved from top to bottom along oil-level measurement graduation apparatus, make electric magnet by electric controller
On coil spacing ground electric, make the probe of the first vibrating sensor, the probe of the second vibrating sensor and the 3rd vibrating sensing
Together with the probe of device all abuts against with the medial plane of installation for transformer, observe the vibrational waveform on frequency of vibration monitor, when
When the waveform of three vibrating sensors has one to change, stop mobile vibrating sensor mounting seat, read waveform change
Oil-level measurement scale residing for vibrating sensor, and compare with the instruction oil level of the oil level indicator of setting on installation for transformer,
When difference is more than 10 millimeters, it is judged that oil level indicator exists false oil level.
A diameter of 10-16 millimeter of the probe of vibrating sensor, vibrating sensor mounting seat is every 10 millimeters of samplings once
Frequency of vibration signal.
The present invention utilizes the conservator of transformator operationally to have oily position different with the frequency of vibration characteristic at oil-free position, right
The actual oil level of conservator positions, thus finds the problem whether oil level indicator of transformator exists false oil level.The present invention be
Transformator carries out testing and diagnosing in the case of not having a power failure, and running transformer safety does not has any negative interaction.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of the oil level testing cassete 5 of the present invention；
Fig. 3 is the fiting relation figure between the vibrating sensor mounting seat 7 of the present invention and vibrating sensor and spring.
Detailed description of the invention
The present invention is described in detail below in conjunction with the accompanying drawings:
A kind of oil-immersed power transformer vacation oil level diagnostic equipment based on three vibrating sensors, including the transformation being currently running
Device, frequency of vibration monitor 10 and electric controller 11, be provided with oil tank of transformer 1, at transformator on the transformator being currently running
It is respectively arranged with bushing shell for transformer 2 and installation for transformer 3 on fuel tank 1, installation for transformer 3 is provided with oil level indicator 4, in transformation
It is provided with oil level testing cassete 5 on the medial plane of device conservator 3, oil level testing cassete 5 is respectively arranged with oil-level measurement graduation apparatus
17, the oil level testing cassete 5 of oil-level measurement graduation apparatus 17 side is movably set with vibrating sensor mounting seat 7, passes in vibration
Being provided with electric magnet 21 in sensor mounting seat 7, the coil 16 on electric magnet 21 is electrically connected with electric controller 11, passes in vibration
Being provided with the first spring 19 in sensor mounting seat 7, connecting in the outer end of the first spring 19 has the first vibrating sensor 14, and first shakes
Together with the probe of dynamic sensor 14 abuts against with the medial plane of installation for transformer 3, the first vibrating sensor 14 and frequency of vibration
Monitor 10 is electrically connected by signal transmission line 9.
The second spring 18 it is provided with, at the second bullet in vibrating sensor mounting seat 7 above the first vibrating sensor 14
The outer end of spring 18 connects the second vibrating sensor 13, and the probe of the second vibrating sensor 13 is put down with the outside of installation for transformer 3
Face abuts against together；It is provided with the 3rd spring 20, in vibrating sensor mounting seat 7 below the first vibrating sensor 14
The outer end of three springs 20 connects the 3rd vibrating sensor 15, outside the probe of the 3rd vibrating sensor 15 is with installation for transformer 3
Side plane abuts against together；Second vibrating sensor 13 and the 3rd vibrating sensor 15 are connected electrically in one with electric controller 11 respectively
Rise；Being provided with motor 6 on oil level testing cassete 5, motor 6 is by drive mechanism 12 and vibrating sensor mounting seat 7
Mechanically coupled together, motor 6 is electrically connected by control line 8 with electric controller 11.
A kind of oil-immersed power transformer vacation oil level diagnostic method based on three vibrating sensors, comprises the following steps:
The first step, oil level testing cassete 5 is set on the medial plane of installation for transformer 3, oil level testing cassete 5 is respectively provided with oil
Position Measurement scales table 17, on the oil level testing cassete 5 of oil-level measurement graduation apparatus 17 side, activity arranges vibrating sensor mounting seat
7, vibrating sensor mounting seat 7 arranges electric magnet 21, the coil 16 on electric magnet 21 is electrically connected with electric controller 11,
Vibrating sensor mounting seat 7 arranges the first spring 19, connects the first vibrating sensor 14 in the outer end of the first spring 19, the
Together with the probe of one vibrating sensor 14 abuts against with the medial plane of installation for transformer 3, the first vibrating sensor 14 and vibration
Frequency monitoring instrument 10 is electrically connected by signal transmission line 9；
Second step, vibrating sensor mounting seat 7 is moved from top to bottom along oil-level measurement graduation apparatus 17, make electricity by electric controller 11
Coil 16 compartment of terrain on Magnet 21 obtains electric, make the probe of the first vibrating sensor 14, the probe of the second vibrating sensor 13 and
Together with probe all medial plane with installation for transformer 3 of the 3rd vibrating sensor 15 abut against, observation frequency of vibration monitor
Vibrational waveform on 10, when the waveform of three vibrating sensors has one to change, stops mobile vibrating sensor and installs
Seat 7, read waveform change the oil-level measurement scale residing for vibrating sensor, and with installation for transformer 3 on arrange oil level indicator 4
Instruction oil level compare, when difference is more than 10 millimeters, it is judged that oil level indicator exists false oil level.
A diameter of 10-16 millimeter of the probe of vibrating sensor, vibrating sensor mounting seat 7 is every 10 millimeters of samplings once
Frequency of vibration signal.
The present invention controls the probe of three vibrating sensors and is carrying out the sampling of frequency by controlling motor 6, every
One group of frequency of vibration characteristic waveforms of 10 millimeters of samplings, when there being a vibrating sensor occurrence frequency characteristic in three vibrating sensors
During waveform change, now can be by the oil level of the oil-level measurement scale residing for this vibrating sensor Yu immediate vibrating sensor
Measurement scales, is averaged, and obtains oil-level measurement scale accurately.As, when the frequency characteristic waveform of the second vibrating sensor 13
When changing, read oil-level measurement scale and the oil-level measurement of the second vibrating sensor 14 of the first vibrating sensor 13 respectively
Scale, and seek both meansigma methodss.By this meansigma methods height and comparing that oil level indicator 4 shows, as being highly consistent, permissible
Judge that oil level indicator 14 normally shows.If height tolerance is more than 10 millimeters, then judge that oil level indicator 14 has problems, i.e. there is false oil
Position phenomenon.
Claims (2)
1. oil-immersed power transformer vacation oil level diagnostic equipments based on three vibrating sensors, including the change being currently running
Depressor, frequency of vibration monitor (10) and electric controller (11), be provided with oil tank of transformer (1) on the transformator being currently running,
Oil tank of transformer (1) is respectively arranged with bushing shell for transformer (2) and installation for transformer (3), in the upper setting of installation for transformer (3)
There is oil level indicator (4), it is characterised in that on the medial plane of installation for transformer (3), be provided with oil level testing cassete (5), at oil level
Oil-level measurement graduation apparatus (17) it is respectively arranged with, at the oil level testing cassete of oil-level measurement graduation apparatus (17) side on testing cassete (5)
(5) it is movably set with vibrating sensor mounting seat (7) on, vibrating sensor mounting seat (7) is provided with electric magnet (21), electricity
Coil (16) on Magnet (21) is electrically connected with electric controller (11), is provided with in vibrating sensor mounting seat (7)
One spring (19), connects in the outer end of the first spring (19) and has the first vibrating sensor (14), the first vibrating sensor (14)
Together with probe abuts against with the medial plane of installation for transformer (3), the first vibrating sensor (14) and frequency of vibration monitor
(10) it is electrically connected by signal transmission line (9).
A kind of oil-immersed power transformer vacation oil levels based on three vibrating sensors the most according to claim 1 diagnosis dress
Put, it is characterised in that in the vibrating sensor mounting seat (7) of the first vibrating sensor (14) top, be provided with the second spring
(18), connect in the outer end of the second spring (18) and have the second vibrating sensor (13), the probe of the second vibrating sensor (13) with
The medial plane of installation for transformer (3) abuts against together；Vibrating sensor mounting seat in the first vibrating sensor (14) lower section
(7) being provided with the 3rd spring (20) on, connecting in the outer end of the 3rd spring (20) has the 3rd vibrating sensor (15), the 3rd vibration
Together with the probe of sensor (15) abuts against with the medial plane of installation for transformer (3)；Second vibrating sensor (13) and the 3rd
Vibrating sensor (15) is electrically connected with electric controller (11) respectively；Oil level testing cassete (5) is provided with motor
(6), motor (6) is mechanically coupled together with vibrating sensor mounting seat (7) by drive mechanism (12), motor
(6) it is electrically connected by control line (8) with electric controller (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610577973.0A CN106052807A (en) | 2016-07-21 | 2016-07-21 | Three-vibration-sensor-based oil level fault diagnosis apparatus for oil-immersed power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610577973.0A CN106052807A (en) | 2016-07-21 | 2016-07-21 | Three-vibration-sensor-based oil level fault diagnosis apparatus for oil-immersed power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106052807A true CN106052807A (en) | 2016-10-26 |
Family
ID=57188390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610577973.0A Pending CN106052807A (en) | 2016-07-21 | 2016-07-21 | Three-vibration-sensor-based oil level fault diagnosis apparatus for oil-immersed power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106052807A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6199027A (en) * | 1984-10-19 | 1986-05-17 | Matsushita Electric Ind Co Ltd | Combustion apparatus |
| CN201985536U (en) * | 2011-04-15 | 2011-09-21 | 丹东欣泰电气股份有限公司 | Intelligent parallel reactor |
| CN102373987A (en) * | 2010-08-18 | 2012-03-14 | 通用汽车环球科技运作有限责任公司 | System and method for detecting engine oil aeration and starvation based on engine vibration |
| CN202229807U (en) * | 2011-10-12 | 2012-05-23 | 华东电力试验研究院有限公司 | Differential pressure type oil level metering device |
| CN103314279A (en) * | 2010-10-12 | 2013-09-18 | 布兰斯特罗姆集团有限公司 | A method and an apparatus for indicating a critical level of a liquid flow |
| CN203573776U (en) * | 2013-11-20 | 2014-04-30 | 国家电网公司 | 220kV transformer adopting integrated fusion technique of sensors |
| CN204010924U (en) * | 2014-07-22 | 2014-12-10 | 浙江绿能电力科技有限公司 | A kind of Novel oil-immersed transformer |
| CN103196518B (en) * | 2013-04-17 | 2015-04-29 | 山东电力集团公司检修公司 | Transformer and respirator online monitor and operating method thereof |
| CN204630643U (en) * | 2015-04-13 | 2015-09-09 | 中广核工程有限公司 | Portable oil tank liquid level meter checking device |
| CN205861172U (en) * | 2016-07-21 | 2017-01-04 | 国网山西省电力公司电力科学研究院 | The oil-immersed power transformer vacation oil level diagnostic equipments based on three vibrating sensors |
-
2016
- 2016-07-21 CN CN201610577973.0A patent/CN106052807A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6199027A (en) * | 1984-10-19 | 1986-05-17 | Matsushita Electric Ind Co Ltd | Combustion apparatus |
| CN102373987A (en) * | 2010-08-18 | 2012-03-14 | 通用汽车环球科技运作有限责任公司 | System and method for detecting engine oil aeration and starvation based on engine vibration |
| CN103314279A (en) * | 2010-10-12 | 2013-09-18 | 布兰斯特罗姆集团有限公司 | A method and an apparatus for indicating a critical level of a liquid flow |
| CN201985536U (en) * | 2011-04-15 | 2011-09-21 | 丹东欣泰电气股份有限公司 | Intelligent parallel reactor |
| CN202229807U (en) * | 2011-10-12 | 2012-05-23 | 华东电力试验研究院有限公司 | Differential pressure type oil level metering device |
| CN103196518B (en) * | 2013-04-17 | 2015-04-29 | 山东电力集团公司检修公司 | Transformer and respirator online monitor and operating method thereof |
| CN203573776U (en) * | 2013-11-20 | 2014-04-30 | 国家电网公司 | 220kV transformer adopting integrated fusion technique of sensors |
| CN204010924U (en) * | 2014-07-22 | 2014-12-10 | 浙江绿能电力科技有限公司 | A kind of Novel oil-immersed transformer |
| CN204630643U (en) * | 2015-04-13 | 2015-09-09 | 中广核工程有限公司 | Portable oil tank liquid level meter checking device |
| CN205861172U (en) * | 2016-07-21 | 2017-01-04 | 国网山西省电力公司电力科学研究院 | The oil-immersed power transformer vacation oil level diagnostic equipments based on three vibrating sensors |
Non-Patent Citations (3)
| Title |
|---|
| 张国栋: "油浸式电力变压器储油柜油位异常原因分析及补充油量的计算", 《电工技术》 * |
| 张朝晖 等: "振动式液位测量方法研究", 《仪器仪表学报》 * |
| 张霁月: "主变压器油位非故障异常原因分析及策略", 《安徽电器工程职业技术学院学报》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104122035B (en) | A kind of directly setting type load torque and rotary inertia analog systems and control method thereof | |
| CN111856169B (en) | Transformer fault detection method and system | |
| CN104154971B (en) | Fuel measuring system automatic detection system | |
| CN111856168B (en) | Transformer fault detection method and box-type transformer | |
| JP2020527017A (en) | Technology to detect abnormalities in motor leakage flux | |
| CN103968939A (en) | Transformer winding looseness fault detection method based on average displacement method | |
| CN205861172U (en) | The oil-immersed power transformer vacation oil level diagnostic equipments based on three vibrating sensors | |
| KR100225470B1 (en) | Motor fault monitoring system with signal analysis of power supply line | |
| CN111164714A (en) | Electrical device connected to a high-voltage network and method for detecting faults in components of an electrical device | |
| CN106289435A (en) | Oil-immersed power transformer vacation oil level diagnostic methods based on three vibrating sensors | |
| CN107192927B (en) | A kind of partial discharge of transformer positioning simulator | |
| CN105547418B (en) | Optical fiber type oil level sensor performance detection device and detection method for transformer | |
| CN106052807A (en) | Three-vibration-sensor-based oil level fault diagnosis apparatus for oil-immersed power transformer | |
| CN106052810A (en) | Electromagnetic-control-type-vibration-sensor-based oil level fault diagnosis method for oil-immersed power transformer | |
| CN205981392U (en) | Electromagnetic control vibration sensor's false oil level diagnostic device of oil immersible power transformer | |
| RU84980U1 (en) | DEVICE FOR CHECKING THE PERFORMANCE OF SAFETY VALVES WITHOUT THEIR REMOVAL FROM EQUIPMENT | |
| CN205981393U (en) | False oil level diagnostic device of oil immersible power transformer | |
| CN106052809A (en) | Oil level fault diagnosis device for oil-immersed power transformer | |
| KR101108306B1 (en) | vibrometer of suddenpressure relay in power transformer and controlling method thereof | |
| CN106052808A (en) | Electromagnetic-control-type-vibration-sensor-based oil level fault diagnosis method for oil-immersed power transformer | |
| EP2560059B1 (en) | Computing device and methods of presenting data to identify faults within power systems | |
| CN204197309U (en) | Automation adds detecting device of draining the oil | |
| CN106052794A (en) | Oil level fault diagnosis device for oil-immersed power transformer | |
| CN116357094A (en) | Intelligent hoisting method and system for assembled building | |
| CN107192518A (en) | A kind of AC system self coupling off circuit tap changing transfor mer method for testing vibration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161026 |
|
| RJ01 | Rejection of invention patent application after publication |