CN106018692B - Electric system air insulating device detection method - Google Patents
Electric system air insulating device detection method Download PDFInfo
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- CN106018692B CN106018692B CN201610354252.3A CN201610354252A CN106018692B CN 106018692 B CN106018692 B CN 106018692B CN 201610354252 A CN201610354252 A CN 201610354252A CN 106018692 B CN106018692 B CN 106018692B
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- 238000001514 detection method Methods 0.000 title claims abstract description 31
- 239000007789 gas Substances 0.000 claims abstract description 191
- 238000004064 recycling Methods 0.000 claims abstract description 13
- 229910018503 SF6 Inorganic materials 0.000 description 70
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 69
- 239000007788 liquid Substances 0.000 description 18
- 238000012544 monitoring process Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000197 pyrolysis Methods 0.000 description 3
- 101000856246 Arabidopsis thaliana Cleavage stimulation factor subunit 77 Proteins 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000011257 shell material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 2
- LSJNBGSOIVSBBR-UHFFFAOYSA-N thionyl fluoride Chemical compound FS(F)=O LSJNBGSOIVSBBR-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- OBTWBSRJZRCYQV-UHFFFAOYSA-N sulfuryl difluoride Chemical compound FS(F)(=O)=O OBTWBSRJZRCYQV-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
-
- 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
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/004—CO or CO2
-
- 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
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0042—SO2 or SO3
-
- 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
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0044—Sulphides, e.g. H2S
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Gas-Insulated Switchgears (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
A kind of electric system air insulating device detection method, including：（1）Monitor SF6 gas pressure intensities inside air insulating device；（2）SF is monitored by flow sensor6Gas vent flow；（3）SO2 concentration in the SF6 gases extracted by the detection of SO2 sensors；（4）The gas container that will be transported to by the gas of SO2 sensors in pressure vessel controller；（5）According to the SF6 gas flows in SO2 concentration and SF6 gas flows the control inflow gas container detected, gas SO2 concentration is made to be less than concentration threshold；（6）H2S, CO and HF concentration in SF6 gases is detected by H2S sensors, CO sensors and HF sensors；（7）SF6 gases are recycled by gas recycling module, the SF6 gases of recycling are partially transferred to SF6 gas reservoirs, and another part sends back air insulating device.
Description
Technical field
The present invention relates to a kind of electric system air insulating device detection method, more particularly, to a kind of electric system gas
Insulator arrangement SF6 gas detection methods.
Background technology
SF6 gas molecules are made of six fluorine atoms and a sulphur atom, the space structure of molecule be using sulphur atom in
The heart, fluorine atom are the regular octahedron structure on vertex.SF6 gases itself are nontoxic, and under normal temperature and pressure, pure SF6 gases have very
When reaching 500 DEG C or more pyrolysis just occurs for good stability, only temperature.Due to the SF6 gases molecular structure of itself
Feature itself has good insulation and arc extinguishing ability, has been widely used in high-voltage power insulation switchgear, such as
SF6 breakers and GIS device etc..
For the SF6 power equipments containing very high purity, put when the high intensity caused by the operations such as high-current on-off occurs
When electric, SF6 gases decompose more than 99.9% ion radical and atomic group can be combined into SF6 again, thus can only generate few
Low fluorine pyrolysis product, if being mixed with the impurity more than comparison, such as moisture, air etc. in SF6 gases, pyrolysis product will be with
Impurity further chemically reacts, and so as to generate a variety of chemical property work wave decomposition objects, makes the insulation performance of electrical equipment
Decline, serious threat will be carried out to the safety belt of the safe operation of power equipment and office work personnel.
If there is failures, the SF6 gases such as electric discharge, overheat and decompose and anti-with other substances in equipment in SF6 power equipments
Answering the primary product that is generated has SOF2, S02F2, S02, H2S, CO, CF4 and HF etc..Wherein, the gases such as SOF2, SO2F2 and CF4
Analysis is mainly detected in laboratory.Point in live more application electrochemical sensor, gas detecting tube method detection device
Product is solved, can effectively detect the components such as S02, H2S and CO.As a result, mainly using SO2, H2S component as running equipment status monitoring
Characteristic gas be aided with detection CO components can realize equipment state judge and Hidden fault or defect diagonsis, be equipment state
Assessment and the maintenance of state foundation and guidance are provided.
By extracting the SF6 gases in power equipment, SF6 gas is detected by sensors such as subsequent SO2, H2S, CO, HF
The decomposition product of body can realize the performance monitoring for power equipment.But existing SF6Gas componant detection device is used
Gas detection sensor range ability it is relatively narrow, and there are cross jamming, the large content of gases of repeated detection between each sensor
Ingredient may pollute each sensor, be mainly shown as after power equipment breaks down, and cause the electric arc that energy is larger
Electric discharge, generates a large amount of SO2Gas componant, the large content of SO2Gas componant may be to sensings such as subsequent H2S, CO, HF
The detection performance of device has an impact, and reduces the hydraulic performance decline of sensor, precision, so as to so that shorten sensor and its instrument
Service life.
In order to solve the above-mentioned technical problem, China Electric Power Research Institute is in the patent of invention of 201110406896.X,
A kind of real-time detection apparatus for analyzing sulfur hexafluoride gas ingredient is proposed, first SO2 gas concentrations are carried out in detection process
Detection, when SO2 gas concentrations are more than threshold value, subsequently without the detection of other sensors, so as to avoid high concentration SO 2 gas
Influence of the body for gas sensor.But in the technical solution of the invention, when SO2 gas concentrations are more than threshold value, just can not
Other gas concentrations are detected, can not realize the measurement for all gas.
A kind of improvement of the present invention as foregoing invention, it is proposed that electric system gas-insulated switchgear SF6 gases
Detection method can also measure other gas contents, and will not when SO2 gas concentrations are more than threshold value
The performance of gas sensor is influenced because SO2 gas concentrations are excessive.
Invention content
As one aspect of the present invention, a kind of electric system air insulating device detection method is provided, including：（1）Prison
Survey SF6 gas pressure intensities inside air insulating device；（2）SF6 gases inside air insulating device are extracted, are supervised by flow sensor
Survey SF6 gas vent flows；（3）SO2 concentration in the SF6 gases extracted by the detection of SO2 sensors；（4）It will be sensed by SO2
The gas of device is transported to the gas container in pressure vessel controller；（5）According to the SO2 concentration and SF6 gas streams detected
Amount control is less than the SO2 concentration in gas container by the SF6 gas flows in SF6 gas reservoir inflow gas containers
Concentration threshold；（6）H2S, CO and the HF detected by H2S sensors, CO sensors and HF sensors in SF6 gases is dense
Degree；（7）SF6 gases are recycled by gas recycling module, the SF6 gases of recycling are partially transferred to SF6 gas reservoirs, another portion
Divide and send back air insulating device.
Preferably, in the step（4）And step（5）, the gas in gas container is controlled by pressure vessel controller
Body pressure makes it equal with inside air insulating device.
Preferably, the step（5）In, when SO2 concentration is less than threshold concentration, control the SF6 gas reservoirs stream
The SF6 gas flows entered in gas container are zero；When SO2 concentration is higher than threshold concentration, the SF6 gas reservoirs stream is controlled
The SF6 gas flow values V entered in gas container is more than V1×(ρIt surveys- ρThreshold)/ ρThreshold, wherein V1The gas detected for flow sensor
Body flow；ρIt surveysFor the SO2 concentration that SO2 sensors detect, ρThresholdFor concentration threshold.
Preferably, the step（6）In, the detection numerical value of H2S sensors, CO sensors and HF sensors is carried out
It corrects, determines true gas parameter C=CIt surveys×（V+V1）/V1, wherein CIt surveysFor H2S sensors, CO sensors and HF sensors
The gas concentration detected, SF6 gas flows of the V between SF6 gas reservoirs and gas container, V1It is examined for flow sensor
The gas flow measured.
Preferably, the concentration threshold be can influence H2S sensors, CO sensors or HF sensor measurements SO2 it is dense
Degree.Preferably, the threshold concentration is the concentration more than 100 μ L/L.
Preferably, the step（2）In, the pressure control vessel includes liquid container and is set in liquid container
Gas container；Liquid is accommodated in the liquid container, liquid level is fixed, and the gas container is flexible container, by controlling
State the air pressure in the gas container deep-controlled gas container residing in the liquid container；It is stored by SF6 gases
Device is communicated with the gas container, SF6 gases can be transported to the gas container by flow valve.
Preferably, the guide rail of vertical direction is set in the liquid container, and the gas container is fixed on institute by sliding block
It states on guide rail；Setting pressure transducer inside gas-insulated switchgear, for monitoring SF6 gas inside gas-insulated switchgear
Body pressure；According to the gas pressure intensity that the pressure transducer determines, change vertical position of the sliding block on the guide rail, from
And the gas pressure intensity in the gas container is made to be equal to the gas pressure intensity inside the gas-insulated switchgear.
Description of the drawings
Fig. 1 is the flow chart of the electric system air insulating device detection method of the embodiment of the present invention.
Fig. 2 is the structural frames of the detection device of the electric system air insulating device detection method for the embodiment of the present invention
Figure.
Specific embodiment
In order to illustrate more clearly of technical scheme of the present invention, embodiment will be used simply to be situated between the present invention below
It continues, it should be apparent that, in being described below is only one embodiment of the present of invention, and those of ordinary skill in the art are come
It says, without having to pay creative labor, other technical solutions can also be obtained according to these embodiments, also belonged to
Disclosure of the invention range.
The flow chart of the electric system air insulating device detection method of the embodiment of the present invention, referring to Fig. 1, including walking as follows
Suddenly：1）Monitor SF6 gas pressure intensities inside air insulating device；（2）SF6 gases inside air insulating device are extracted, pass through flow
Sensor monitoring SF6 gas vent flows；（3）SO2 concentration in the SF6 gases extracted by the detection of SO2 sensors；（4）It will be logical
The gas for crossing SO2 sensors is transported to gas container in pressure vessel controller；（5）According to the SO2 concentration detected and
The control of SF6 gas flows makes the SO2 in gas container by the SF6 gas flows in SF6 gas reservoir inflow gas containers
Concentration is less than concentration threshold；（6）By H2S sensors, CO sensors and HF sensors detect SF6 gases in H2S, CO with
And HF concentration；（7）SF6 gases are recycled by gas recycling module, the SF6 gases of recycling are partially transferred to SF6 gas reservoirs,
Another part sends back air insulating device.
By the setting of the above method of the present invention, SO2 gases is made to be poured when more than threshold concentration into detected gas
SF6 gases make the SO2 gas concentrations in detected gas be reduced to the range for not influencing subsequent sensor, thus allow for
The detection of subsequent sensor.
The electric system gas-insulated switchgear SF6 gas-detecting devices of the embodiment of the present invention, referring to Fig. 2, including
Flow sensor 10, SO2 sensors 20, pressure control vessel 30, gas container 31, H2S sensors 40, CO sensors 50, HF
Sensor 60, gas recycling module 70 and SF6 gas reservoirs 80.
Its equipment of SO2 sensors 20 goes out outside gas-insulated switchgear with the SF6 gases of gas-insulated switchgear
Mouth communicates, for detecting the SO2 contents in the SF6 gases extracted from gas-insulated switchgear.It is set in gas-insulated switch
Standby outlet exports SF6 gas flows on the channel of SO2 sensors 20, setting flow sensor 10, for detecting.
Pressure control vessel 30 is set in the subsequent channel of SO2 sensors, by internal gas reservoir 31 with
SO2 sensors communicate.The gas pressure intensity for the gas container 31 that pressure control vessel 30 can control it internal.It can be by pressure control
Container 30 is set as liquid container, inside accommodates the liquid of specific water level, which can be such as water.It can be by pressure
Control container 30 is set as the square container of top end opening, and there are one the sides for being less than other sides for tool；The side top with
30 liquid outlet of pressure control vessel communicates, and liquid outlet is communicated with device for storing liquid, and device for storing liquid is held by delivery pump and pressure control
The bottom of device 30 communicates, and when the liquid water level of pressure control vessel 30 rises, is discharged to liquid discharge device by liquid outlet, is pressing
During the water level decreasing of power control container 30, the liquid of device for storing liquid is transported in pressure control vessel 30 by delivery pump, so as to protect
Hold the stable level of pressure control vessel 30.
Gas container 31 its use flexible container that can use such as rubber, resin or plastics as material as shell
Material, so as to which when being passed through SF6 gases, shell being capable of free wxpansion.Gas container 31 passes through flow with SF6 gas reservoirs 80
Valve 32 communicates, and SF6 gases can be transported in gas container 31 by flow valve 32, so as to the SO2 concentration mistake in SF6 gases
When big, the concentration of SO2 can be reduced.Specifically, when the SO2 concentration that SO2 sensors 20 detect is less than concentration threshold, stream is closed
Measure valve 32；SO2 concentration is more than concentration threshold, and turn-on flow rate valve 32 will be set as making gas by the SF6 gas flows of flow valve 32
SO2 concentration in body container 31 is less than concentration threshold.Wherein, concentration threshold is can influence H2S sensors, CO sensors or HF
The SO2 concentration of sensor measurement, for example, the threshold concentration could be provided as the concentration more than 100 μ L/L.For example, it can incite somebody to action
The SF6 gas flows V of flow valve is more than V1×(ρIt surveys- ρThreshold)/ ρThreshold, wherein V1The gas flow detected for flow sensor；ρIt surveys
For the SO2 concentration that SO2 sensors detect, ρThresholdFor concentration threshold.
H2S sensors 40 are set to after pressure control vessel 30, for detecting the H2S contents in SF6 gases；CO is passed
Sensor 50 and HF sensors 60, after being set in turn in H2S sensors, for detecting CO the and HF contents in SF6 gases.
H2S sensors 40 are being obtained, CO sensors 50 after the measured value of HF sensors 60, pass through concentration correction unit
The real gas for calculating H2S, CO and HF is a concentration of：C=CIt surveys×（V+V1）/V1, wherein CIt surveysFor H2S sensors, CO sensors with
And the gas concentration that HF sensors detect, SF6 gas flows of the V between SF6 gas reservoirs 80 and gas container 31, V1
The gas flow detected for flow sensor 10.
Gas recycling module 70 after HF sensors 60 is set, recycles SF6 gases, gas recycling module 70 respectively with gas
Insulated switching installation and SF6 gas reservoirs 80 communicate, can be between gas recycling module 70 and SF6 gas reservoirs 80
Flow valve is set, the gas flow between gas recycling module 70 and the SF6 gas reservoirs 80 is made to be stored equal to SF6 gases
Gas flow between device 80 and gas container 31.
Preferably, in order to make the air pressure in gas container 31 equal with gas-insulated switchgear air pressure inside, Ke Yi
Pressure transducer for monitoring SF6 gas pressure intensities inside gas-insulated switchgear is set inside gas-insulated switchgear.
The guide rail of setting vertical direction in pressure control vessel 30, gas container lead to 31 sliding blocks excessively and are fixed on the guide rail, according to
The gas pressure intensity that pressure transducer determines changes vertical position of the sliding block on the guide rail, so as to make in gas container 31
Gas pressure intensity is equal to the gas pressure intensity inside the gas-insulated switchgear.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.For the ordinary skill people of the art
For member, several improvements and modifications without departing from the principles of the present invention should be regarded as falling into protection scope of the present invention.
Claims (3)
1. a kind of electric system air insulating device detection method, including：（1）Monitor SF6 gas pressures inside air insulating device
By force；（2）SF6 gases inside air insulating device are extracted, SF6 gas vent flows are monitored by flow sensor；（3）Pass through
SO2 concentration in the SF6 gases that the detection of SO2 sensors is extracted；（4）To pressure vessel control be transported to by the gas of SO2 sensors
Gas container in device processed；（5）SO2 concentration and SF6 gas flows control according to detecting passes through SF6 gas reservoir streams
Enter the SF6 gas flows in gas container, the SO2 concentration in gas container is made to be less than concentration threshold；（6）By H2S sensors,
H2S, CO and HF concentration in CO sensors and HF sensors detection SF6 gases；（7）It is recycled by gas recycling module
SF6 gases, the SF6 gases of recycling are partially transferred to SF6 gas reservoirs, and another part sends back air insulating device；Wherein,
The step（5）In, when SO2 concentration is less than threshold concentration, control in the SF6 gas reservoirs inflow gas container
SF6 gas flows are zero；When SO2 concentration is higher than threshold concentration, control in the SF6 gas reservoirs inflow gas container
SF6 gas flow values V is more than V1×(ρIt surveys- ρThreshold)/ ρThreshold, wherein V1The gas flow detected for flow sensor；ρIt surveysFor SO2
The SO2 concentration that sensor detects, ρThresholdFor concentration threshold.
2. electric system air insulating device detection method according to claim 1, it is characterised in that：In the step
（4）And step（5）, the gas pressure intensity in gas container is controlled by pressure vessel controller, makes itself and air insulating device
It is internal equal.
3. electric system air insulating device detection method according to claim 2, it is characterised in that：The step（6）
In, the detection numerical value of H2S sensors, CO sensors and HF sensors is modified, determine true gas parameter C=
CIt surveys×（V+V1）/V1, wherein CIt surveysFor the gas concentration that H2S sensors, CO sensors and HF sensors detect, V is SF6 gas
SF6 gas flows between body memory and gas container, V1The gas flow detected for flow sensor.
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| CN201610354252.3A CN106018692B (en) | 2016-05-25 | 2016-05-25 | Electric system air insulating device detection method |
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| CN106018692B true CN106018692B (en) | 2018-07-03 |
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|---|---|---|---|---|
| CN201724905U (en) * | 2010-07-12 | 2011-01-26 | 常州海立普电力科技有限公司 | Dual-channel SF6 (Sulfur Hexafluoride) catabolite tester |
| CN201828554U (en) * | 2010-06-29 | 2011-05-11 | 河南省电力公司商丘供电公司 | Comprehensive evaluation device for sulfur hexafluoride electrical equipment |
| CN102305869A (en) * | 2011-08-12 | 2012-01-04 | 安徽省电力科学研究院 | Instrument for analyzing quality of sulfur hexafluoride gas in electric equipment |
| CN102520121A (en) * | 2011-12-08 | 2012-06-27 | 中国电力科学研究院 | Environment-friendly type real-time detection apparatus for analysis of components in sulfur hexafluoride gas and method used therein |
| CN202421160U (en) * | 2011-12-08 | 2012-09-05 | 中国电力科学研究院 | Environment-friendly real-time detector for analyzing ingredients of sulfur hexafluoride gas |
-
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- 2016-05-25 CN CN201610354252.3A patent/CN106018692B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201828554U (en) * | 2010-06-29 | 2011-05-11 | 河南省电力公司商丘供电公司 | Comprehensive evaluation device for sulfur hexafluoride electrical equipment |
| CN201724905U (en) * | 2010-07-12 | 2011-01-26 | 常州海立普电力科技有限公司 | Dual-channel SF6 (Sulfur Hexafluoride) catabolite tester |
| CN102305869A (en) * | 2011-08-12 | 2012-01-04 | 安徽省电力科学研究院 | Instrument for analyzing quality of sulfur hexafluoride gas in electric equipment |
| CN102520121A (en) * | 2011-12-08 | 2012-06-27 | 中国电力科学研究院 | Environment-friendly type real-time detection apparatus for analysis of components in sulfur hexafluoride gas and method used therein |
| CN202421160U (en) * | 2011-12-08 | 2012-09-05 | 中国电力科学研究院 | Environment-friendly real-time detector for analyzing ingredients of sulfur hexafluoride gas |
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