CN106872644A - Extra-high-voltage alternating current GIL mixed gas analyte and component detection method - Google Patents
Extra-high-voltage alternating current GIL mixed gas analyte and component detection method Download PDFInfo
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- CN106872644A CN106872644A CN201710035467.3A CN201710035467A CN106872644A CN 106872644 A CN106872644 A CN 106872644A CN 201710035467 A CN201710035467 A CN 201710035467A CN 106872644 A CN106872644 A CN 106872644A
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- mixed gas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1254—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of gas-insulated power appliances or vacuum gaps
Abstract
The present invention relates to extra-high-voltage alternating current GIL mixed gas analyte and component detection method, mixed gas are filled with to the powered examination line segments of extra-high-voltage alternating current mixed gas GIL in proportion, mixed gas at timing examination line segment pipeline charging valve powered to the extra-high-voltage alternating current mixed gas GIL carry out recovery collection, mixed gas to gathering are analyzed, the failure cause judged the state of extra-high voltage mixed gas GIL and be likely to occur.The present invention can carry out qualitative analysis with the case of real-time online for data, be easy to personnel to understand the insulation fault reason that the state of extra-high voltage GIL and analysis are likely to occur in time.
Description
Technical field
The present invention relates to electric power transmission field, extra-high-voltage alternating current GIL mixed gas analyte and composition detection are referred in particular to
Method.
Background technology
GIL（gas-insulated metal enclosed transmission line）It is gas-insulated metal-enclosed
The abbreviation of mixed gas transmission line of electricity is exchanged, is that one kind uses SF6Or the height of other insulating gas, shell and conductor coaxial arrangement
Voltage, high current, the power transmitting device of long range, with transmission line capability it is big, take up an area less, flexible arrangement, reliability is high, safeguard
Measure the small remarkable advantage of small, long lifespan, ambient influnence.It is several that current high pressure GIL technologies are essentially ABB, Siemens, U.S. AZZ etc.
Individual American-European major company is grasped, and its newest GIL product all realizes part standard, modularized design, can be curved with path elasticity
Song, using N2/SF6 Etc. mixed gas to reach cost-effective and environmental protection effect, wherein U.S. AZZ companies have succeeded in developing
1200 kV extra-high voltage mixed gas GIL.And China GIL products are still in space state, run such as Yellow River Laxiwa Hydroelectric Station
The 550kV GIL of 750kV GIL, Xi Luo Du reservoir etc. all use external product.
In recent years, China progressively enhanced intelligent grid construction and big energy base construction to GIL products and engineering demand
All significantly increasing, especially extra-high voltage mixed gas GIL has been that-Nanjing-, extra-high voltage Huainan Shanghai engineering is defeated across Yangtze River Tunnel
The important aspect of electricity, current China has now been developed the extra-high-voltage alternating current GIL based on Mixed gas insulation, wherein mixed gas bag
Include SF6And N2, the mixed gas are passed through in the extra-high-voltage alternating current GIL carries out powered examination, to ensure that extra-high voltage GIL sets
For reliability service, it is necessary to detect the analyte and composition of mixed gas, but dividing there is presently no real-time detecting mixing gas
The method of solution thing and composition.
The content of the invention
Therefore, the technical problems to be solved by the invention are to avoid the operation of extra-high-voltage alternating current GIL in the prior art steady
Determine the problem of poor performance and mixed so as to provide a kind of extra-high-voltage alternating current GIL of the operation stability that can ensure extra-high-voltage alternating current GIL
Close gas analyte and component detection method.
In order to solve the above technical problems, a kind of extra-high-voltage alternating current GIL mixed gas analyte of the invention and composition detection
Method, for judging whether extra-high-voltage alternating current GIL occurs insulation defect, its step is as follows：Step S1：In proportion by mixed gas
It is filled with to the powered examination line segments of extra-high-voltage alternating current mixed gas GIL；Step S2：Timing is to the extra-high-voltage alternating current mixed gas
Mixed gas at the powered examination line segment pipeline charging valves of GIL carry out recovery collection；Step S3：Mixed gas to gathering are entered
Row analysis, the failure cause judged the state of extra-high voltage mixed gas GIL and be likely to occur.
In one embodiment of the invention, it is powered using the extra-high-voltage alternating current mixed gas GIL in the step S1
The characteristics of examination line segment, mixed gas are filled with proportion.
In one embodiment of the invention, the ratio of the mixed gas is according to extra-high-voltage alternating current mixed gas GIL bands
Every technical parameter of electricity examination line segment is determined.
In one embodiment of the invention, when being filled with mixed gas in proportion in the step S1, first by gaseous mixture
Body is delivered in gas mixing tank in proportion；Then the gaseous impurity and moisture in the gas mixing filling are excluded；Its secondary control
Pressure in the gas mixing filling, is sufficiently mixed the mixed gas；Finally by the gaseous mixture in gas mixing filling
Body is delivered in the powered examination line segments of the extra-high-voltage alternating current mixed gas GIL.
In one embodiment of the invention, sensor is provided with the gas mixing filling, by the sensor detecting
The composition of gaseous impurity.
In one embodiment of the invention, described mixing is realized by being pressurizeed to the mixed gas in gas mixing filling
Close being sufficiently mixed for gas.
In one embodiment of the invention, in the step S2, by the extra-high-voltage alternating current mixed gas GIL bands
Mixed gas retracting device is installed at electricity examination line segment pipeline charging valve to realize gathering the recovery of mixed gas.
In one embodiment of the invention, the mixed gas retracting device automatically analyze gas in mixed gas into
Divide and analyte.
In one embodiment of the invention, in the step S3, the mixed gas of collection are transmitted to expert diagnosis system
Extra-high voltage mixed gas GIL data are carried out qualitative analysis by system by the expert diagnostic system.
In one embodiment of the invention, the data after the expert diagnostic system is analyzed are delivered to computer end, lead to
The data crossed after the computer display correlation analysis.
Above-mentioned technical proposal of the invention has advantages below compared to existing technology：
Extra-high-voltage alternating current GIL mixed gas analyte of the present invention and component detection method, using extra-high-voltage alternating current gaseous mixture
Body GIL it is powered examination line segment the characteristics of, be filled with a certain proportion of SF6And N2, one is installed at extra-high voltage GIL pipeline charging valves
Individual mixed gas retracting device, the mixed gas retracting device is used in extra-high voltage GIL charge process for mixed gas
A certain amount of recovery is carried out, consequently facilitating staff understands the insulation that the state of extra-high voltage GIL and analysis are likely to occur in time
Failure cause.
Brief description of the drawings
In order that present disclosure is more likely to be clearly understood, below according to specific embodiment of the invention and combine
Accompanying drawing, the present invention is further detailed explanation, wherein
Fig. 1 is the flow chart of extra-high-voltage alternating current GIL mixed gas analyte of the present invention and component detection method；
Fig. 2 is the connection diagram of extra-high-voltage alternating current mixed gas GIL line segments monitoring of the present invention.
Specific embodiment
Refer to shown in Fig. 1, the present embodiment provides a kind of extra-high-voltage alternating current GIL mixed gas analyte and composition detection side
Method, for judging whether extra-high-voltage alternating current GIL occurs insulation defect, its step is as follows：Step S1：Mixed gas are filled in proportion
Enter to the powered examination line segments of extra-high-voltage alternating current mixed gas GIL；Step S2：Timing is to the extra-high-voltage alternating current mixed gas
Mixed gas at the powered examination line segment pipeline charging valves of GIL carry out recovery collection；Step S3：Mixed gas to gathering are entered
Row analysis, the failure cause judged the state of extra-high voltage mixed gas GIL and be likely to occur.
Above-mentioned is core technology field of the present invention, extra-high-voltage alternating current GIL mixed gas analytes of the present invention
And component detection method, for judging whether extra-high-voltage alternating current GIL occurs insulation defect, in the step S1, in proportion will be mixed
Close gas to be filled with to the powered examination line segments of extra-high-voltage alternating current mixed gas GIL, be so as to facilitate deciding on extra-high-voltage alternating current GIL
No generation insulation defect；In the step S2, regularly examination line segment pipeline powered to the extra-high-voltage alternating current mixed gas GIL fills
Mixed gas at air valve carry out recovery collection, are conducive to analyzing the analyte and composition of mixed gas；In the step S3,
Mixed gas to gathering are analyzed, the failure cause judged the state of extra-high voltage mixed gas GIL and be likely to occur,
Staff is conducive to understand the insulation fault reason that the state of extra-high voltage mixed gas GIL and analysis are likely to occur, solution in time
The integrity problem for certainly being run into actual motion, effectively improves the operational reliability of extra-high voltage mixed gas GIL.
It is powered using the extra-high-voltage alternating current mixed gas GIL in the step S1 for simulated field runs truth
The characteristics of examination line segment, mixed gas are filled with proportion, wherein by mixed gas SF6And N2Input is mixed to the extra-high-voltage alternating current
Close in the powered examination line segments of gas GIL, be conducive to analysis and research to grasp the state of extra-high voltage mixed gas GIL.Specifically, it is described
The ratio of mixed gas determines according to every technical parameter of the powered examination line segments of extra-high-voltage alternating current mixed gas GIL, wherein institute
State rated voltage of the technical parameter including the powered examination line segments of extra-high-voltage alternating current mixed gas GIL, power frequency withstanding voltage, thunder and lightning punching
Hit withstanding voltage and operation withstanding voltage.The extra-high-voltage alternating current mixed gas GIL line segments 10 are applied for a long time
Rated voltage and rated current can just form the powered examination line segments of extra-high-voltage alternating current mixed gas GIL, so as to be conducive to simulation
Scene operation truth.
When being filled with mixed gas in proportion in the step S1, mixed gas are delivered to gas mixing tank in proportion first
Mixing that is interior, being conducive to mixed gas to be filled in the gas mixing；Then exclude the gas mixing fill in gaseous impurity and
Moisture, so as to advantageously ensure that the operation stability of extra-high-voltage alternating current GIL；Pressure in gas mixing filling described in its secondary control,
The mixed gas are sufficiently mixed, are conducive to shortening the incorporation time of the mixed gas, extra-high voltage GIL equipment is reliably transported
OK；Finally by the mixed gas delivery in gas mixing filling to the extra-high-voltage alternating current GIL, realization effectively improves extra-high
The operation stability of pressure exchange GIL.Wherein described gas mixing is provided with sensor in filling, and can effectively be detectd by the sensor
The composition of gaseous impurity is surveyed, so as to be conducive to excluding gaseous impurity.In addition, in order to overcome gas mixing fill in gaseous impurity and
Influence of the moisture to mixed gas, gaseous impurity and water can be effectively excluded by way of being heated in being filled to the gas mixing
Point.The gas mixing fill in pressure powered according to extra-high-voltage alternating current mixed gas GIL examination line segment the characteristics of calculate, specifically
Ground is said, is determined according to every technical parameter of the powered examination line segments of the extra-high-voltage alternating current mixed gas GIL.In order that described
Mixed gas are sufficiently mixed, and described mixing can be realized by the way that the mixed gas in gas mixing filling are pressurizeed or heated
Close being sufficiently mixed for gas.
Refer to shown in Fig. 2, in the step S2, install mixed by the extra-high voltage GIL pipeline charging valves 11
Gas concentration unit 21 is closed to realize gathering the recovery of mixed gas, and the mixed gas retracting device 21 can be in extra-high voltage
In GIL charge process a certain amount of recovery is carried out for mixed gas.The mixed gas retracting device 21 can set interval
Time extracts a small amount of mixed gas for analyzing at any time, and can automatically analyze the gas componant in mixed gas and decomposition
Thing, wherein the mixed gas retracting device 21 is connected with the expert diagnostic system 22, so as to by gas componant and analyte
Relevant information be wirelessly transmitted to the expert diagnostic system 22.
In the step S3, the mixed gas of collection are transmitted to expert diagnostic system 22, specifically, by gas componant and
Analyte information is wirelessly transmitted to expert diagnostic system 22, can be with right in the case of real-time online by the expert diagnostic system 22
The data of extra-high voltage mixed gas GIL carry out qualitative analysis, are easy to personnel to understand the state of extra-high voltage GIL in time and analyze possible
The insulation fault reason of appearance.Specifically, the expert diagnostic system 22 is connected with the computer 23, by the expert diagnosis system
Data after system analysis are delivered to computer end, the data after the computer 23 shows correlation analysis, so as to be conducive to allowing work
The state and analysis for making personnel's understanding extra-high voltage mixed gas GIL are likely to occur failure cause, effectively improve extra-high voltage gaseous mixture
The operational reliability of body GIL.
To sum up, technical scheme of the present invention has advantages below：
1. extra-high-voltage alternating current GIL mixed gas analyte of the present invention and component detection method, in the step S1, in proportion
Mixed gas are filled with to the powered examination line segments of extra-high-voltage alternating current mixed gas GIL, so as to facilitate deciding on extra-high-voltage alternating current
Whether GIL there is insulation defect；In the step S2, regularly to the powered examination line segments of extra-high-voltage alternating current mixed gas GIL
Mixed gas at pipeline charging valve carry out recovery collection, are conducive to analyzing the analyte and composition of mixed gas；The step
In rapid S3, the mixed gas to gathering are analyzed, the event judged the state of extra-high voltage mixed gas GIL and be likely to occur
Barrier reason, is conducive to staff to understand the insulation fault that the state of extra-high voltage mixed gas GIL and analysis are likely to occur in time
Reason, solves the integrity problem run into actual motion, effectively improves the operational reliability of extra-high voltage mixed gas GIL.
2. extra-high-voltage alternating current GIL mixed gas analyte of the present invention and component detection method, press in the step S1
When ratio is filled with mixed gas, mixed gas are delivered in gas mixing tank in proportion first, are conducive to mixed gas in institute
State the mixing of gas mixing filling；Then the gaseous impurity and moisture in the gas mixing filling are excluded, so as to advantageously ensure that spy
The operation stability of high-voltage alternating GIL；Pressure in gas mixing filling described in its secondary control, makes the mixed gas fully mix
Close, be conducive to shortening the incorporation time of the mixed gas, make extra-high voltage GIL equipment reliability services；Finally the gas is mixed
The mixed gas delivery in filling is closed in the extra-high-voltage alternating current GIL, realization effectively improves the stable of extra-high-voltage alternating current GIL
Property.Wherein described gas mixing is provided with sensor in filling, and the composition of gaseous impurity can be effectively detected by the sensor, from
And be conducive to excluding gaseous impurity.
Obviously, above-described embodiment is only intended to clearly illustrate example, not to the restriction of implementation method.For
For those of ordinary skill in the art, the change of other multi-forms can also be made on the basis of the above description or is become
It is dynamic.There is no need and unable to be exhaustive to all of implementation method.And the obvious change or change thus extended out
Among moving still in the protection domain of the invention.
Claims (10)
1. a kind of extra-high-voltage alternating current GIL mixed gas analyte and component detection method, for whether judging extra-high-voltage alternating current GIL
Generation insulation defect, its step is as follows：
Step S1：Mixed gas are filled with to the powered examination line segments of extra-high-voltage alternating current mixed gas GIL in proportion；
Step S2：Gaseous mixture at timing examination line segment pipeline charging valve powered to the extra-high-voltage alternating current mixed gas GIL
Body carries out recovery collection；
Step S3：Mixed gas to gathering are analyzed, and judge the state of extra-high voltage mixed gas GIL and are likely to occur
Failure cause.
2. extra-high-voltage alternating current GIL mixed gas analyte according to claim 1 and component detection method, its feature exist
In：In the step S1, using the extra-high-voltage alternating current mixed gas GIL it is powered examination line segment the characteristics of, be filled with proportion mixed
Close gas.
3. extra-high-voltage alternating current GIL mixed gas analyte according to claim 2 and component detection method, its feature exist
In：The ratio of the mixed gas according to extra-high-voltage alternating current mixed gas GIL it is powered examination line segment every technical parameter determine,
Wherein described technical parameter include the powered examination rated voltages of line segment of extra-high-voltage alternating current mixed gas GIL, power frequency withstanding voltage,
Lightning impulse withstand voltage and operation withstanding voltage.
4. extra-high-voltage alternating current GIL mixed gas analyte according to claim 1 and 2 and component detection method, its feature
It is：When being filled with mixed gas in proportion in the step S1, mixed gas are delivered in gas mixing tank in proportion first；
Then the gaseous impurity and moisture in the gas mixing filling are excluded；Pressure in gas mixing filling described in its secondary control, makes institute
Mixed gas are stated to be sufficiently mixed；Finally by the mixed gas delivery in gas mixing filling to the extra-high-voltage alternating current gaseous mixture
In the powered examination line segments of body GIL.
5. extra-high-voltage alternating current GIL mixed gas analyte according to claim 4 and component detection method, its feature exist
In：The gas mixing is provided with sensor in filling, by the composition of the sensor detecting gaseous impurity.
6. extra-high-voltage alternating current GIL mixed gas analyte according to claim 4 and component detection method, its feature exist
In：Being sufficiently mixed for the mixed gas is realized by being pressurizeed to the mixed gas in gas mixing filling.
7. extra-high-voltage alternating current GIL mixed gas analyte according to claim 1 and component detection method, its feature exist
In：In the step S2, installed by the powered examination line segment pipeline charging valves of the extra-high-voltage alternating current mixed gas GIL
Mixed gas retracting device realizes the recovery collection to mixed gas.
8. extra-high-voltage alternating current GIL mixed gas analyte according to claim 7 and component detection method, its feature exist
In：The mixed gas retracting device automatically analyzes gas componant and analyte in mixed gas.
9. extra-high-voltage alternating current GIL mixed gas analyte according to claim 1 and component detection method, its feature exist
In：In the step S3, the mixed gas of collection are transmitted to expert diagnostic system, by the expert diagnostic system to extra-high
Pressure mixed gas GIL data carry out qualitative analysis.
10. extra-high-voltage alternating current GIL mixed gas analyte according to claim 9 and component detection method, its feature exist
In：Data after the expert diagnostic system is analyzed are delivered to computer end, the number after the computer shows correlation analysis
According to.
Applications Claiming Priority (2)
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| CN2016106224274 | 2016-08-01 | ||
| CN201610622427 | 2016-08-01 |
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