CN108896220A - A kind of device and method for being monitored to extra-high voltage disintegration formula transformer winding pressing force - Google Patents
A kind of device and method for being monitored to extra-high voltage disintegration formula transformer winding pressing force Download PDFInfo
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- CN108896220A CN108896220A CN201810264818.2A CN201810264818A CN108896220A CN 108896220 A CN108896220 A CN 108896220A CN 201810264818 A CN201810264818 A CN 201810264818A CN 108896220 A CN108896220 A CN 108896220A
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- pressing force
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- force data
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- high voltage
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- 238000004804 winding Methods 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims description 21
- 230000006835 compression Effects 0.000 claims abstract description 51
- 238000007906 compression Methods 0.000 claims abstract description 51
- 239000000835 fiber Substances 0.000 claims abstract description 27
- 238000012544 monitoring process Methods 0.000 abstract description 8
- 238000010338 mechanical breakdown Methods 0.000 abstract description 4
- 239000013307 optical fiber Substances 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
- G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
- G01L1/246—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre using integrated gratings, e.g. Bragg gratings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
- G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
- G01L5/101—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means using sensors inserted into the flexible member
Abstract
The invention discloses a kind of device for being monitored to extra-high voltage disintegration formula transformer winding pressing force, described device includes：Pressure sensor, the pressure sensor are embedded in winding pressing plate, and the winding pressing plate compresses winding, and the pressure sensor is used to detect the pressing force of the winding, are obtained and are compressed force signal；Fiber demodulator, the compression force signal is converted to compression force data by the fiber demodulator, and the compression force data is sent to industrial personal computer；Industrial personal computer, the industrial personal computer is for being monitored the compression force data.The present invention carries out real-time monitoring to extra-high voltage disintegration formula transformer coil/winding pressing force, when pressing force is insufficient or loosens, extra-high voltage disintegration formula transformer winding impaction state is issued into " early warning, failure and emergency stop " three grades signal to operations staff, to avoid that mechanical breakdown occurs, extra-high voltage disintegration formula transformer is caused to be stopped transport.
Description
Technical field
The present invention relates to extra-high voltage applied technical fields, more particularly, to one kind for extra-high voltage disintegration formula transformation
The device and method that device winding pressing force is monitored.
Background technique
Poor western rich, more than Nan Shaobei the feature in east is presented since Chinese energy is distributed, needs to carry out transregional transmission of electricity；Extra-high voltage is defeated
Electrical engineering can solve the energy and be unevenly distributed demand to the energy under weighing apparatus pattern, and extra-high voltage transformer is in UHV Transmission Engineering
One of important equipment, while being also the maximum equipment of weight, in mountain area or the limited and height-limited area of road, load carrying capacity of bridge
Domain causes transformer transporting to be restricted, and constrains the use of extra-high voltage transformer.Extra-high voltage disintegration formula transformer will be by that will become
Depressor resolves into several units, and each unit weight is no more than the weight limits of road or bridge, to solve transportation problem,
Several units for transporting substation location scene are assembled again, and formation has the extra-high voltage transformer that engineering uses.
When extra-high voltage transformer all disintegrate, transformer is decomposed into top tank, lower fuel tank, single-column coil, U-shaped iron
The units such as the heart, lead, upper and lower iron yoke, attachment, due to the iron core to extra-high voltage transformer resolve into 3 or 4 " U-shaped " iron cores into
The U-shaped iron core and lower yoke of extra-high voltage transformer are carried out assembly again after transporting substation location scene, after existing by row transport
Extra-high voltage transformer vibrates excessive risk in phase operation use process, and vibration is excessive may to will lead to coil/winding pressing force
It loosens.When extra-high voltage transformer is by short-circuit current rush, when coil/winding pressing force is insufficient, huge electricity
Power may result in coil/winding deformation, and coil/winding deformation then destroys insulation system when aggravating, led by mechanical breakdown
Insulation fault is caused, penetrability discharge fault is eventually developed to, leads to extra-high voltage transformer emergency stop, force electric grid large area power cut,
Heavy losses are caused to social economy.
Therefore, it is necessary to a kind of technologies, are monitored with realizing to extra-high voltage disintegration formula transformer winding pressing force.
Summary of the invention
The present invention provides a kind of device for being monitored to extra-high voltage disintegration formula transformer winding pressing force and sides
Method, to solve the problems, such as how to be monitored to extra-high voltage disintegration formula transformer winding pressing force.
To solve the above-mentioned problems, the present invention provides one kind for extra-high voltage disintegration formula transformer winding pressing force into
The device of row monitoring, described device include：
Pressure sensor, the pressure sensor are embedded in winding pressing plate, and the winding pressing plate compresses winding, the pressure
Force snesor is used to detect the pressing force of the winding, obtains and compresses force signal；
The compression force signal is converted to compression force data by fiber demodulator, the fiber demodulator, and by the pressure
Clamp force data are sent to industrial personal computer；
Industrial personal computer, the industrial personal computer is for being monitored the compression force data received.
Preferably, the pressure sensor is fibre optic compression sensor.
Preferably, the compression force signal is fiber-optic signal.
It preferably, further include the pressing force data assessment system, the pressing force data assessment system is by the compression
Force data is compared with pre-set pressing force lowest threshold, when the compression force data is lower than the minimum threshold of the pressing force
When value, the pressing force data assessment system issues the too low pre-warning signal of pressing force.
Preferably, described that the compression force data is sent to industrial personal computer, including：
By Ethernet, the compression force data is sent to industrial personal computer.
Based on another aspect of the present invention, provide a kind of for being supervised to extra-high voltage disintegration formula transformer winding pressing force
The method of survey, the method includes：
Pressure sensor is embedded in winding pressing plate, the winding pressing plate compresses winding, and the pressure sensor is used for
The pressing force of the winding is detected, obtains and compresses force signal；
The compression force signal is converted into compression force data by fiber demodulator, and the compression force data is sent
To industrial personal computer；
The compression force data received is monitored using industrial personal computer.
Preferably, the pressure sensor is fibre optic compression sensor.
Preferably, the compression force signal is fiber-optic signal.
Preferably, further include：
By the pressing force data assessment system by the compression force data and pre-set pressing force lowest threshold into
Row compares, and when the compression force data is lower than the pressing force lowest threshold, the pressing force data assessment system issues pressure
The too low pre-warning signal of clamp force.
Preferably, described that the compression force data is sent to industrial personal computer, including：
By Ethernet, the compression force data is sent to industrial personal computer.
Technical solution of the present invention proposes a kind of extra-high voltage disintegration formula transformer winding pressing force on-Line Monitor Device and method.
The present invention is by carrying out real-time monitoring to extra-high voltage disintegration formula transformer coil/winding pressing force, when pressing force is insufficient or pine
When dynamic, extra-high voltage disintegration formula transformer winding impaction state is issued into " early warning, failure and emergency stop " three grades to operations staff
Signal, can effectively solve when extra-high voltage disintegration formula transformer the problems such as overhauls, when stops transport, thus avoid occurring it is mechanical therefore
Barrier causes extra-high voltage disintegration formula transformer to be stopped transport, avoids large-area power-cuts bring huge economic losses.
Detailed description of the invention
By reference to the following drawings, exemplary embodiments of the present invention can be more fully understood by：
Fig. 1 is according to the preferred embodiment for the present invention for supervising to extra-high voltage disintegration formula transformer winding pressing force
The apparatus structure schematic diagram of survey；
Fig. 2 is to be monitored on-line according to a kind of extra-high voltage disintegration formula transformer winding pressing force of the preferred embodiment for the present invention
Apparatus structure schematic diagram；And
Fig. 3 is according to the preferred embodiment for the present invention for supervising to extra-high voltage disintegration formula transformer winding pressing force
The method flow diagram of survey.
Specific embodiment
Exemplary embodiments of the present invention are introduced referring now to the drawings, however, the present invention can use many different shapes
Formula is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be at large and fully disclose
The present invention, and the scope of the present invention is sufficiently conveyed to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements use identical attached
Icon note.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field
It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its
The context of related fields has consistent meaning, and is not construed as Utopian or too formal meaning.
Fig. 1 is according to the preferred embodiment for the present invention for supervising to extra-high voltage disintegration formula transformer winding pressing force
The apparatus structure schematic diagram of survey.Real-time monitoring is carried out to extra-high voltage disintegration formula transformer coil/winding pressing force, works as pressing force
When insufficient or loosening, extra-high voltage disintegration formula transformer winding impaction state is issued into " early warning, failure and emergency stop " to operations staff
Three grades signal causes extra-high voltage disintegration formula transformer to be stopped transport to avoid that mechanical breakdown occurs.
Embodiment of the present invention provides a kind of dress for being monitored to extra-high voltage disintegration formula transformer winding pressing force
It sets, device includes：
Pressure sensor, pressure sensor are embedded in winding pressing plate, and winding pressing plate compresses winding, and pressure sensor is used for
The pressing force of detection winding obtains and compresses force signal.Preferably, pressure sensor is fibre optic compression sensor.Preferably, it compresses
Force signal is fiber-optic signal.
Fiber demodulator, fiber demodulator will compress force signal and be converted to compression force data, and will compress force data and send
To industrial personal computer.Preferably, force data will be compressed and is sent to industrial personal computer, including：By Ethernet, force data will be compressed and be sent to work
Control machine.
Industrial personal computer, industrial personal computer are used to be monitored compression force data.
It preferably, further include pressing force data assessment system, pressing force data assessment system is by compression force data and in advance
The pressing force lowest threshold of setting is compared, when compressing force data lower than pressing force lowest threshold, pressing force data assessment
System issues pressing force pre-warning signal.
A kind of extra-high voltage disintegration formula transformer winding pressing force on-Line Monitor Device that the application embodiment proposes, including
Extra-high voltage disintegration formula transformer winding pressing force on-Line Monitor Device is mainly by sensor module, signal demodulation module and host computer
Module composition.As shown in Figure 1, device includes：
Nail pressing 1, winding pressing plate 2, pressure sensor 3, winding 4, high temperature resistant jacket fiber transmission line 5, interface plugging plate 6,
The composition such as outdoor armored fiber optic transmission line 7, fiber demodulator 8, Ethernet 9, industrial personal computer 10, pressing force assessment system 11.
A kind of sensor module of extra-high voltage disintegration formula transformer winding pressing force on-Line Monitor Device provided by the present application,
Pressure sensor 3 is embedded in winding pressing plate 2, it can be achieved that monitoring of the nail pressing 1 to 2 pressing force of winding pressing plate, due to the transmitting of power
Effect, winding pressing plate 2 and 4 stress of winding are active force and reaction force relationship, by monitoring the pressing force of winding pressing plate, thus
Realize that winding bears the real-time monitoring of pressing force, pressure sensor 3 is embedded in winding pressing plate 2, and pressure sensor 3 is optical fiber pressure
Force snesor converts pressure into optical signal transmission and goes out.Pressure sensor 3 uses optical fiber bragg grating FBG design pressure
Sensor is designed by external structure, and the variation of temperature and pressure strain can cause grating fibre core effective refractive index and space to be rolled over
Change rate modulation period is penetrated, to make fiber grating bragg reflection wavelength respond temperature and strain sensitive, by optical fiber
The demodulation of the central wavelength of grating can extrapolate the parameters such as temperature, strain by optical fiber elasto-optical effect and thermo-optic effect theory, together
When the experimental test of strain is influenced by temperature, correct the strain parameter measurement of sensor, realize the optical fiber light of pressure value
The accurate measurement of grid sensing.
A kind of signal solution mode transfer of extra-high voltage disintegration formula transformer winding pressing force on-Line Monitor Device provided by the present application
Block, realizes demodulation to optical signal in optical fiber transmission line 5, pressure sensor 3 by inside transformer high-temperature resistant optical fiber sheath 5 with
The inside transformer side of interface plugging plate 6 connects, and high-temperature resistant optical fiber sheath ensures that optical fiber is able to bear inside transformer operation temperature
Degree, while meeting insulation and climbing electric margin requirement, 6 other side of interface plugging plate is connect with outdoor 7 transmission line of armored fiber optic, interface envelope
Closure plate 6 is that specialty optical fiber docks run-through board, and outdoor armored fiber optic transmission line 7 is connect with fiber demodulator 8, and fiber demodulator 8 is real
Now fiber-optic signal is demodulated, is converted into the pressure data of pressing force.
A kind of host computer mould of extra-high voltage disintegration formula transformer winding pressing force on-Line Monitor Device provided by the present application
Block, fiber demodulator 8 are realized that the pressure data of pressing force is transferred to-industrial personal computer 10 by Ethernet 9, are installed inside industrial personal computer 10
Pressing force assessment system 11 passes through the corresponding pressing force of pressing force assessment system 11 " early warning, failure and emergency stop " set in advance
Limit value issues corresponding sound and light signal when being lower than corresponding limit value.
Fig. 2 is to be monitored on-line according to a kind of extra-high voltage disintegration formula transformer winding pressing force of the preferred embodiment for the present invention
Apparatus structure schematic diagram.As shown in Fig. 2, measured by pressing force of the sensor module 1 to winding, and by the signal of measurement
It is sent to signal and reconciles module 2, signal reconciles module 2 and the compression force signal of measurement is converted to compression force data, and will compress
Force data is uploaded to upper computer module.
Fig. 3 is according to the preferred embodiment for the present invention for supervising to extra-high voltage disintegration formula transformer winding pressing force
The method flow diagram of survey.As shown in figure 3, a kind of side for being monitored to extra-high voltage disintegration formula transformer winding pressing force
Method, method include：
Preferably, in step 301：Pressure sensor is embedded in winding pressing plate, winding pressing plate compresses winding, and pressure passes
Sensor is used for the pressing force of detection winding, obtains and compresses force signal.Preferably, pressure sensor is fibre optic compression sensor.It is excellent
Selection of land, compression force signal are fiber-optic signal.
Preferably, in step 302：Force signal will be compressed by fiber demodulator and is converted to compression force data, and will be compressed
Force data is sent to industrial personal computer.Preferably, force data will be compressed and is sent to industrial personal computer, including：By Ethernet, by pressing force number
According to being sent to industrial personal computer.
Preferably, in step 303：It is monitored using industrial personal computer to force data is compressed.
Preferably, further include：Pressing force data assessment system will be compressed into force data and pre-set pressing force is minimum
Threshold value is compared, and when compressing force data lower than pressing force lowest threshold, it is pre- that pressing force data assessment system issues pressing force
Alert signal.
The method for being monitored to extra-high voltage disintegration formula transformer winding pressing force of the preferred embodiment for the present invention
It is corresponding with the device for being monitored to extra-high voltage disintegration formula transformer winding pressing force of another embodiment of the present invention,
It is no longer repeated herein.
The big importance of extra-high voltage disintegration formula transformer transmission capacity is high；Extra-high voltage disintegration formula transformer is extra-high voltage grid
One of important equipment, when extra-high voltage disintegration formula transformer is by short circuit current failure, inside transformer winding bears huge
Electric power impact, if winding pressing force is insufficient, internal winding is incited somebody to action mechanical breakdowns, the winding deformations such as deformation occurs and seriously be will lead to
Insulation damages, and then destructive discharge fault occurs since dielectric strength reduces, cause extra-high voltage disintegration formula transformer to be stopped transport,
Cause electric grid large area power cut.Real-time monitoring is carried out to extra-high voltage disintegration formula transformer coil/winding pressing force, works as pressing force
When insufficient or loosening, extra-high voltage disintegration formula transformer winding impaction state is issued into " early warning, failure and emergency stop " to operations staff
Three grades signal, can effectively solve when extra-high voltage disintegration formula transformer the problems such as overhauls, when stops transport, and then avoid big face
Product power failure bring economic loss.
The present invention is described by reference to a small amount of embodiment.However, it is known in those skilled in the art, as
Defined by subsidiary Patent right requirement, in addition to the present invention other embodiments disclosed above equally fall in it is of the invention
In range.
Normally, all terms used in the claims are all solved according to them in the common meaning of technical field
It releases, unless in addition clearly being defined wherein.All references " one/described/be somebody's turn to do [device, component etc.] " are all opened ground
At least one example being construed in described device, component etc., unless otherwise expressly specified.Any method disclosed herein
Step need not all be run with disclosed accurate sequence, unless explicitly stated otherwise.
Claims (10)
1. a kind of device for being monitored to extra-high voltage disintegration formula transformer winding pressing force, described device include：
Pressure sensor, the pressure sensor are embedded in winding pressing plate, and the winding pressing plate compresses winding, and the pressure passes
Sensor is used to detect the pressing force of the winding, obtains and compresses force signal；
The compression force signal is converted to compression force data by fiber demodulator, the fiber demodulator, and by the pressing force
Data are sent to industrial personal computer；
Industrial personal computer, the industrial personal computer is for being monitored the compression force data received.
2. the apparatus according to claim 1, the pressure sensor is fibre optic compression sensor.
3. the apparatus according to claim 1, the compression force signal is fiber-optic signal.
4. the apparatus according to claim 1 further includes the pressing force data assessment system, the pressing force data assessment
The compression force data is compared by system with pre-set pressing force lowest threshold, when the compression force data is lower than institute
When stating pressing force lowest threshold, the pressing force data assessment system issues the too low pre-warning signal of pressing force.
5. the apparatus according to claim 1, described that the compression force data is sent to industrial personal computer, including：
By Ethernet, the compression force data is sent to industrial personal computer.
6. a kind of method for being monitored to extra-high voltage disintegration formula transformer winding pressing force, the method includes：
Pressure sensor is embedded in winding pressing plate, the winding pressing plate compresses winding, and the pressure sensor is for detecting
The pressing force of the winding obtains and compresses force signal；
The compression force signal is converted into compression force data by fiber demodulator, and the compression force data is sent to work
Control machine；
The compression force data received is monitored using industrial personal computer.
7. according to the method described in claim 6, the pressure sensor is fibre optic compression sensor.
8. according to the method described in claim 6, the compression force signal is fiber-optic signal.
9. according to the method described in claim 6, further including：
The pressing force data assessment system is compared the compression force data and pre-set pressing force lowest threshold
Compared with when the compression force data is lower than the pressing force lowest threshold, the pressing force data assessment system issues pressing force
Too low pre-warning signal.
10. according to the method described in claim 6, described be sent to industrial personal computer for the compression force data, including：
By Ethernet, the compression force data is sent to industrial personal computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810264818.2A CN108896220A (en) | 2018-03-28 | 2018-03-28 | A kind of device and method for being monitored to extra-high voltage disintegration formula transformer winding pressing force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810264818.2A CN108896220A (en) | 2018-03-28 | 2018-03-28 | A kind of device and method for being monitored to extra-high voltage disintegration formula transformer winding pressing force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108896220A true CN108896220A (en) | 2018-11-27 |
Family
ID=64342224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810264818.2A Pending CN108896220A (en) | 2018-03-28 | 2018-03-28 | A kind of device and method for being monitored to extra-high voltage disintegration formula transformer winding pressing force |
Country Status (1)
| Country | Link |
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| CN (1) | CN108896220A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926673A (en) * | 2019-12-02 | 2020-03-27 | 沈阳变压器研究院股份有限公司 | Device for measuring short circuit force of power transformer |
| CN113838661A (en) * | 2021-09-03 | 2021-12-24 | 广东电网有限责任公司广州供电局 | Reactor coil adjusting method and system |
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| CN1365442A (en) * | 1999-07-28 | 2002-08-21 | Abb专利有限公司 | Device for measuring the contact pressure of a winding press element in an output transformer |
| JP2011223645A (en) * | 2010-04-02 | 2011-11-04 | Nishi Nippon Electric Wire & Cable Co Ltd | Power supply mechanism employing cable ground current |
| CN103529352A (en) * | 2013-10-29 | 2014-01-22 | 国家电网公司 | On-line monitoring system capable of monitoring short-circuit force applied to running transformer |
| CN206132901U (en) * | 2016-09-22 | 2017-04-26 | 北京三清互联科技有限公司 | Transformer winding deformation on -line monitoring device |
| CN106646097A (en) * | 2016-11-28 | 2017-05-10 | 华北电力大学 | Transformer winding deformation on-line monitoring system by employing fiber grating strain sensors |
| CN206531598U (en) * | 2017-03-08 | 2017-09-29 | 深圳太辰光通信股份有限公司 | A kind of fiber bragg grating pressure sensor |
-
2018
- 2018-03-28 CN CN201810264818.2A patent/CN108896220A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1365442A (en) * | 1999-07-28 | 2002-08-21 | Abb专利有限公司 | Device for measuring the contact pressure of a winding press element in an output transformer |
| JP2011223645A (en) * | 2010-04-02 | 2011-11-04 | Nishi Nippon Electric Wire & Cable Co Ltd | Power supply mechanism employing cable ground current |
| CN103529352A (en) * | 2013-10-29 | 2014-01-22 | 国家电网公司 | On-line monitoring system capable of monitoring short-circuit force applied to running transformer |
| CN206132901U (en) * | 2016-09-22 | 2017-04-26 | 北京三清互联科技有限公司 | Transformer winding deformation on -line monitoring device |
| CN106646097A (en) * | 2016-11-28 | 2017-05-10 | 华北电力大学 | Transformer winding deformation on-line monitoring system by employing fiber grating strain sensors |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926673A (en) * | 2019-12-02 | 2020-03-27 | 沈阳变压器研究院股份有限公司 | Device for measuring short circuit force of power transformer |
| CN113838661A (en) * | 2021-09-03 | 2021-12-24 | 广东电网有限责任公司广州供电局 | Reactor coil adjusting method and system |
| CN113838661B (en) * | 2021-09-03 | 2023-08-08 | 广东电网有限责任公司广州供电局 | Method and system for adjusting reactor coil |
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Application publication date: 20181127 |
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