CN206863141U - A kind of real-time detection apparatus of Operation Condition of Power Transformers - Google Patents
A kind of real-time detection apparatus of Operation Condition of Power Transformers Download PDFInfo
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- CN206863141U CN206863141U CN201720669615.2U CN201720669615U CN206863141U CN 206863141 U CN206863141 U CN 206863141U CN 201720669615 U CN201720669615 U CN 201720669615U CN 206863141 U CN206863141 U CN 206863141U
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Abstract
It the utility model is related to power equipment state monitoring and fault diagnosis technology field, more particularly to a kind of real-time detection apparatus of Operation Condition of Power Transformers, oil sample collecting unit, Oil-gas Separation unit, mixed gas separative element, gas component detection unit, data acquisition and procession unit, communication unit are specifically included；It is successfully realized the gas componant and concentration of dissolved in insulating oil that is quick, accurately and real-time detecting power transformer, the drawbacks of avoiding the monitoring means that is short of that steady in a long-term, precision is credible in equipment O＆M, there is provided for online evaluation analytical equipment running status and the authentic data of residual life；Realize and find and tracking power transformer is hidden the function of sexual abnormality in a creative way, broken away from the limitation that cycle in artificial periodic detection is long, investment is big at one stroke, reached electric power safety production risk, efficiency and cost and integrated optimal target；Accurate and discovering device early latency defect, avoids the generation of electric power safety production event.
Description
Technical field
It the utility model is related to power equipment state monitoring and fault diagnosis technology field, and in particular to a kind of power transformer
The real-time detection apparatus of device running status.
Background technology
Power transformer is mostly oil-filled transformer, the medium using insulating oil as insulation and radiating.In actual motion,
Electric power transformer insulated oil and the solid insulating material gradual aging of meeting, decomposition, generation in the presence of electrically and thermally are dissolved in oil
Hydrogen, carbon monoxide, carbon dioxide, methane, ethane, acetylene, the characteristic gas such as ethene, gas concentration is that reflection is apparatus insulated
The key character parameter of performance degradation sign.When Hidden fault be present, the generation speed of these gases and it is dissolved in oil
Quantity can all increase, and the composition of failure gas and content and equipment fault type and order of severity close relation.Cause
This, it is one of important means for monitoring transformer station high-voltage side bus to detect electric power transformer insulated oily chromatogram situation, can aid in and
The insulation defect of its internal early stage is early found, and by timely fault diagnosis and state evaluation, to take specific treatment measures
Avoid its malignant development.
Dissolved Gases in Insulating Oil analyzing and diagnosing technology includes taking out oil sample in slave unit, then solution gas is parsed from oil
Body, the composition and content of the gas are analyzed with gas chromatographic technique, judge whether there is internal fault in equipment, diagnose its failure classes
Type, and estimate the temperature of trouble point, fault energy etc..But traditional laboratory chromatographic analysis is cumbersome in the presence of sampling, operation is multiple
It is miscellaneous, the shortcomings of experimental period is long；And mainboard exception, circuit abnormality, oil circuit seepage, air compression occur often for automatic detection device
Machine is abnormal, magnetic valve is abnormal, heater exception and abnormity of power supply etc. are abnormal, easily cause to transformer station high-voltage side bus supervision less than
Position, influence discovery in time, the latency defect of disposal power transformer.
In consideration of it, being necessary to develop a kind of reliability and durability Operation Condition of Power Transformers real-time monitoring device, note is realized
Record and the evaluation characteristic index such as Dissolved Gases in Insulating Oil concentration and gas production rate, so as to accurate and discovering device early latent
Property defect.
The content of the invention
In order to solve the above problems, the utility model provides a kind of real-time detection dress of Operation Condition of Power Transformers
Put, concrete technical scheme is as follows：
A kind of real-time detection apparatus of Operation Condition of Power Transformers includes oil sample collecting unit, Oil-gas Separation unit, mixed
Close gas separation unit, gas component detection unit, data acquisition and procession unit, communication unit；The oil sample collecting unit
For gathering the insulating oil in power transformer body and inputting the insulating oil in the power transformer body collected to oil
Gas separative element；Oil-gas Separation unit be used for separate oil sample collecting unit collection power transformer body in insulating oil with absolutely
The mixed gas that is dissolved in edge oil simultaneously inputs the mixed gas separated to mixed gas separative element；Mixed gas separates
The each gas component for the mixed gas that unit is separated for separation from Oil-gas Separation unit is simultaneously each by what is separated
Individual gas component is inputted to gas component detection unit；It is defeated from mixed gas separative element that gas detected components unit is used for detection
The concentration of each gas component is simultaneously converted into electric signal and inputted to data acquisition and procession by the concentration of each gas component entered
Unit；Data acquisition and procession unit is for gathering the data for each gas component concentrations that gas detection cell detects simultaneously
Handled, stored, by each gas component concentrations data input to communication unit；Communication unit is used for data acquisition and place
Each gas component concentrations data of reason unit input are uploaded to status monitoring assessment centers；The oil sample collecting unit, oil gas
Separative element, mixed gas separative element, gas component detection unit, data acquisition and procession unit, communication unit connect successively
Connect.
Further, the oil sample collecting unit includes oil inlet pipe, oil return pipe, 2 fuel taps, air boost pumps；The oil-feed
One end of pipe and the fuel feeding valve of power transformer are connected, and fuel tap, the other end and air boost pump of oil inlet pipe are set on oil inlet pipe
Connection；One end of oil return pipe and the draining valve of power transformer are connected, and fuel tap, the other end and the sky of oil return pipe are set on oil return pipe
Gas booster pump connects.
Further, the Oil-gas Separation unit includes reducing piston pump.
Further, the mixed gas separative element includes compound gas chromatographic column, and the compound gas chromatographic column sets 2
Root.
Further, gas component detection unit includes resistor-type semiconductor gas sensor.
Further, the data acquisition and procession unit includes A/D conversion chips, DSP Processor.
Further, the communication unit includes GPRS wireless communication modules.
Further, the fuel tap is flange-type fuel tap.
Further, the surface of the oil inlet pipe, the surface of oil return pipe are covered each by heating tape.
The utility model provides a kind of real-time detection apparatus of Operation Condition of Power Transformers, be successfully realized it is quick,
The gas componant and concentration of the dissolved in insulating oil of power transformer are accurately and real-time detected, avoids in equipment O＆M and owes
The drawbacks of monitoring means that lacks that steady in a long-term, precision is credible, there is provided for online evaluation analytical equipment running status and remaining longevity
The authentic data of life；The function of finding and track the latent sexual abnormality of power transformer is realized in a creative way, has broken away from people at one stroke
The limitation that the cycle is long in work periodic detection, investment is big, it is optimal electric power safety production risk, efficiency and cost synthesis are reached
Target；Accurate and discovering device early latency defect, avoids the generation of electric power safety production event.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model.
Embodiment
In order to be better understood from the utility model, the utility model is made with specific embodiment below in conjunction with the accompanying drawings further
Explanation：
As shown in figure 1, a kind of real-time detection apparatus of Operation Condition of Power Transformers includes oil sample collecting unit, oil gas point
From unit, mixed gas separative element, gas component detection unit, data acquisition and procession unit, communication unit；Oil sample gathers
Unit is used to gather the insulating oil in power transformer body and inputs the insulating oil in the power transformer body collected
To Oil-gas Separation unit；Oil-gas Separation unit is used to separate the insulating oil in the power transformer body of oil sample collecting unit collection
With the mixed gas of dissolved in insulating oil and the mixed gas separated being inputted to mixed gas separative element；Mixed gas
Separative element is used to separate each gas component for the mixed gas separated from Oil-gas Separation unit and will separated
Each gas component input to gas component detection unit；Gas detected components unit, which is used to detect from mixed gas, separates list
Member input each gas component concentration and by the concentration of each gas component be converted into electric signal input to data acquisition with
Processing unit；Data acquisition and procession unit is used for the number for gathering each gas component concentrations that gas detection cell detects
According to and handled, stored, by each gas component concentrations data input to communication unit；Communication unit is used for data acquisition
Status monitoring assessment centers are uploaded to each gas component concentrations data of processing unit input；Oil sample collecting unit, oil gas
Separative element, mixed gas separative element, gas component detection unit, data acquisition and procession unit, communication unit connect successively
Connect.
Oil sample collecting unit includes oil inlet pipe, oil return pipe, 2 fuel taps, air boost pumps；One end of oil inlet pipe becomes with electric power
The fuel feeding valve of depressor connects, and sets fuel tap on oil inlet pipe, the other end of oil inlet pipe is connected with air boost pump；One end of oil return pipe
It is connected with the draining valve of power transformer, fuel tap is set on oil return pipe, the other end of oil return pipe is connected with air boost pump；Fuel tap
For flange-type fuel tap, oil inlet pipe, oil return pipe use a diameter of 8 millimeters, density is 8.96 grams of copper tubes per cubic centimeter, oil-feed
The surface of pipe, the surface of oil return pipe are covered each by heating tape, and air boost pump uses Miniature reciprocating air boost pump, oil flow rate
Degree is less than 0.5m/s.
Oil-gas Separation unit includes reducing piston pump, and Oil-gas Separation unit carries out Oil-gas Separation using degassing method is vacuumized,
Moved repeatedly up and down by using using reducing piston pump, multiple dilatation degassing, compression gas collection, so that dissolved in insulating oil
Gas separates out rapidly, and for that can separate in oil more than 95% dissolved gas in 15 minutes, its oil-gas room's volume is its degassing efficiency
350 milliliters.
Mixed gas separative element includes compound gas chromatographic column, hydrogen, the oxygen that can be automatically separated in mixed gas
Change the gas components such as carbon, carbon dioxide, methane, ethane, acetylene, ethene, compound gas chromatographic column sets 2, meets gas phase color
Compose compound gas chromatographic column of the post using the series of Agilent 6890.
Gas component detection unit includes resistor-type semiconductor gas sensor, and its measurement accuracy is to work as dissolved in insulating oil
Repeatability of gas content when being more than 10 microlitres every liter be less than 10%, the gas content of dissolved in insulating oil is not more than 10 microlitres
Measurement reproducibility at every liter is less than 20%.
Data acquisition and procession unit includes A/D conversion chips, DSP Processor, and A/D conversion chips use more than 24
TM7707 double channel As/D conversion chips of ADC series.
Communication unit includes GPRS wireless communication modules, and GPRS wireless communication modules use to be route based on H7921 3G VPN
The GPRS wireless communication modules of device design.
The oil inlet pipe of oil sample collecting unit, oil return pipe are respectively connecting to fuel feeding valve, the draining valve of power transformer, and will
The electric power transformer insulated oil collected, which is transmitted into Oil-gas Separation unit, to be de-gassed.Oil-gas Separation unit is by using true
The mode of sky degassing departs from, collects the mixed gas dissolved in electric power transformer insulated oil, and passes through more than 0.2 MPa of carrier gas
Mixed gas is inputted to mixed gas separative element and separated.Mixed gas separative element passes through compound gas-chromatography post separation hydrogen
Each component gas such as gas, carbon monoxide, carbon dioxide, methane, ethane, acetylene, ethene, and each component gas are delivered into gas
Body component detection unit detects.Gas component detection unit is detected and is separated successively by resistor-type semiconductor gas sensor
Each component gas, and by the concentration signal of each component gas input to data acquisition and procession cell translation, storage, number
The data signal directlyed proportional according to collection to processing unit conversion, storage to each component gas concentration, and data signal is inputted
To communication unit.During communication unit is evaluated the information transfers such as Monitoring Data, spectrogram to status monitoring by GPRS wireless networks
The heart is for the monitoring of equipment operation maintenance personnel, analysis.It is can be found that and is being set by the gas for the dissolved in insulating oil for analyzing power transformer
Under received shipment row normal condition, because in the presence of hot and electricity, electric power transformer insulated oil and solid insulating material divide aging
A small amount of imflammable gas is solved, but gas production rate is slower；After there is latent sexual abnormality, by feature gas in insulating oil
Body content, the traceable order of severity for judging that device interior is abnormal and development speed, gas content and gas production rate pair now
Whether there is in failure judgement, the order of severity and development trend it is more directly perceived.
The utility model is not limited to above-described embodiment, the foregoing is only of the present utility model preferable
Case study on implementation, not to limit the utility model, all made within spirit of the present utility model and principle are any
Modifications, equivalent substitutions and improvements etc., should be included within the scope of protection of the utility model.
Claims (9)
- A kind of 1. real-time detection apparatus of Operation Condition of Power Transformers, it is characterised in that：Including oil sample collecting unit, oil gas point From unit, mixed gas separative element, gas component detection unit, data acquisition and procession unit, communication unit；The oil sample Collecting unit is used to gathering insulating oil in power transformer body and by the insulating oil in the power transformer body collected Input to Oil-gas Separation unit；It is exhausted in power transformer body of the Oil-gas Separation unit for separating the collection of oil sample collecting unit The mixed gas of edge oil and dissolved in insulating oil simultaneously inputs the mixed gas separated to mixed gas separative element；Mixing Gas separation unit is used for each gas component for separating the mixed gas separated from Oil-gas Separation unit and will separation Each gas component out is inputted to gas component detection unit；Gas detected components unit is used to detect from mixed gas point From each gas component of unit input concentration and the concentration of each gas component be converted into electric signal input to data and adopt Collection and processing unit；Data acquisition and procession unit is used to gather each gas component concentrations that gas detection cell detects Data and handled, stored, by each gas component concentrations data input to communication unit；Communication unit is used for data Each gas component concentrations data of collection and processing unit input are uploaded to status monitoring assessment centers；The oil sample collection is single Member, Oil-gas Separation unit, mixed gas separative element, gas component detection unit, data acquisition and procession unit, communication unit It is sequentially connected.
- A kind of 2. real-time detection apparatus of Operation Condition of Power Transformers according to claim 1, it is characterised in that：It is described Oil sample collecting unit includes oil inlet pipe, oil return pipe, 2 fuel taps, air boost pumps；One end of the oil inlet pipe and power transformer Fuel feeding valve connection, fuel tap is set on oil inlet pipe, the other end of oil inlet pipe is connected with air boost pump；One end of oil return pipe and electricity The draining valve of power transformer connects, and sets fuel tap on oil return pipe, the other end of oil return pipe is connected with air boost pump.
- A kind of 3. real-time detection apparatus of Operation Condition of Power Transformers according to claim 1, it is characterised in that：It is described Oil-gas Separation unit includes reducing piston pump.
- A kind of 4. real-time detection apparatus of Operation Condition of Power Transformers according to claim 1, it is characterised in that：It is described Mixed gas separative element includes compound gas chromatographic column, and the compound gas chromatographic column sets 2.
- A kind of 5. real-time detection apparatus of Operation Condition of Power Transformers according to claim 1, it is characterised in that：Gas Component detection unit includes resistor-type semiconductor gas sensor.
- A kind of 6. real-time detection apparatus of Operation Condition of Power Transformers according to claim 1, it is characterised in that：It is described Data acquisition and procession unit includes A/D conversion chips, DSP Processor.
- A kind of 7. real-time detection apparatus of Operation Condition of Power Transformers according to claim 1, it is characterised in that：It is described Communication unit includes GPRS wireless communication modules.
- A kind of 8. real-time detection apparatus of Operation Condition of Power Transformers according to claim 2, it is characterised in that：It is described Fuel tap is flange-type fuel tap.
- A kind of 9. real-time detection apparatus of Operation Condition of Power Transformers according to claim 2, it is characterised in that：It is described The surface of oil inlet pipe, the surface of oil return pipe are covered each by heating tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720669615.2U CN206863141U (en) | 2017-06-09 | 2017-06-09 | A kind of real-time detection apparatus of Operation Condition of Power Transformers |
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| CN201720669615.2U CN206863141U (en) | 2017-06-09 | 2017-06-09 | A kind of real-time detection apparatus of Operation Condition of Power Transformers |
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| CN206863141U true CN206863141U (en) | 2018-01-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738595A (en) * | 2019-03-07 | 2019-05-10 | 福建工程学院 | A kind of system and method based on Internet of Things detection transformer fault |
| CN110208332A (en) * | 2019-07-02 | 2019-09-06 | 哈尔滨理工大学 | Gas in Oil of Transformer on-line monitoring system |
| CN112924325A (en) * | 2020-12-30 | 2021-06-08 | 广东电网有限责任公司电力科学研究院 | Gas-insulated transformer monitoring method and device based on mixed gas |
-
2017
- 2017-06-09 CN CN201720669615.2U patent/CN206863141U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738595A (en) * | 2019-03-07 | 2019-05-10 | 福建工程学院 | A kind of system and method based on Internet of Things detection transformer fault |
| CN110208332A (en) * | 2019-07-02 | 2019-09-06 | 哈尔滨理工大学 | Gas in Oil of Transformer on-line monitoring system |
| CN112924325A (en) * | 2020-12-30 | 2021-06-08 | 广东电网有限责任公司电力科学研究院 | Gas-insulated transformer monitoring method and device based on mixed gas |
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