CN108801853A - A kind of manoscopy device - Google Patents
A kind of manoscopy device Download PDFInfo
- Publication number
- CN108801853A CN108801853A CN201810668976.4A CN201810668976A CN108801853A CN 108801853 A CN108801853 A CN 108801853A CN 201810668976 A CN201810668976 A CN 201810668976A CN 108801853 A CN108801853 A CN 108801853A
- Authority
- CN
- China
- Prior art keywords
- control valve
- processing component
- interface
- way control
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/26—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring pressure differences
- G01N9/266—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring pressure differences for determining gas density
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
- G01D3/036—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
Abstract
The present invention provides a kind of manoscopy devices, including：Three-way control valve, three-way control valve include three-way control valve main body, and three-way control valve main body has the intake interface being connect with the density monitor interface of GIS, the first outlet interface, the second outlet interface being connected to mechanical density monitor；Several hygrosensors, hygrosensor are arranged on the inside of the flange of GIS shells, and hygrosensor includes the SAW Temperature Sensors for the temperature data for detecting hygrosensor present position；Processing component, processing component include processing component shell and be arranged processing component enclosure interior temperature sampler and detection present position pressure data pressure sensor；Temperature sampler is wirelessly connected with SAW Temperature Sensors；Processing component shell is equipped with the air-path interface being connect with the second outlet interface and the egress bus being electrically connected with convergence control cabinet.The device can reduce the measurement error generated due to temperature change, and the linearity is good, high certainty of measurement.
Description
Technical field
The present invention relates to manoscopy technical fields, and in particular to a kind of manoscopy device.
Background technology
Gas insulated switchgear (English：GAS Insulated SWITCHGEAR, referred to as：GIS) it is internal filled with
The SF of certain pressure6Gas has excellent insulation performance as dielectric.It is close when GIS air pressure inside offratings
Degree relay can reflect current air chamber pressure value in time, and export alarm or block signal.
Currently, commonly density monitor is using bourdon tube as measuring cell, using the bimetal leaf built in instrument to being surveyed
Conversion obtains SF of the current plenum interior at 20 DEG C after air pressure carries out temperature-compensating6Gas pressure value.However, this type density
Relay has many shortcomings in practical applications：Bourdon tube as non-linear element, only in particular pressure range with pipe
Linear approximate relationship is presented in interior surveyed gas pressure, and still has certain error；Bimetal leaf is only capable of the temperature to its present position
Value compensates, and the intervals GIS are longer, and since the factors such as direct sunlight, temperature shock lead to GIS plenum interiors, there are temperature ladders
When spending, bimetal leaf then cannot correctly compensate actual temperature, cause measurement error, so that density monitor is sent out
Go out false alarm or accidentally block signal, seriously affects the safe and stable operation of GIS.
Invention content
Based on this, a kind of the present invention provides linearities good, high certainty of measurement manoscopy device.
An embodiment of the present invention provides a kind of manoscopy devices, including：
Three-way control valve, the three-way control valve have intake interface, the first outlet interface, the second outlet interface；It is described
Intake interface is for the density monitor orifice with gas insulated switchgear, the through-hole internal diameter of the intake interface
It is equal with the through-hole internal diameter of density monitor interface；The three-way control valve is used for by the first outlet interface and machine
Tool formula density monitor is connected to；
Hygrosensor, the hygrosensor include the surface acoustic wave temperature of the temperature data for detecting present position
Sensor, the SAW Temperature Sensors are arranged on the inside of the flange of the shell of the gas insulated switchgear；
Processing component, the processing component include processing component shell and are arranged in the processing component enclosure interior
The pressure sensor of temperature sampler and pressure data for detecting present position；The temperature sampler and the sound surface
Wave temperature sensor is wirelessly connected；The processing component shell is equipped with air-path interface and egress bus, the air-path interface and institute
The second outlet orifice is stated, the processing component is used to be electrically connected with convergence control cabinet by the egress bus.
Preferably, the hygrosensor further includes detector housing, fixing piece, and the detector housing is set in described
On fixing piece, the fixing piece with the flange inside thread of the shell of the gas insulated switchgear for connecting, institute
SAW Temperature Sensors are stated to be arranged in the bottom of the detector housing.
Preferably, the quantity of the hygrosensor is 4, and is separately positioned on the gas insulated switchgear
Shell both sides top and bottom.
Preferably, the processing component further includes the Switching Power Supply being arranged in the processing component enclosure interior, described to open
Powered-down source is electrically connected with the pressure sensor, the temperature sampler respectively, and the Switching Power Supply passes through the egress bus
For being electrically connected with convergence control cabinet.
Preferably, the three-way control valve further includes the first shut-off valve, the three-way control valve main body be additionally provided with for
First gas vent of outside connection, the first shut-off valve setting close on first outlet in the three-way control valve main body and connect
The side of mouth, to cut off or be connected to the gas circuit between the first outlet interface and the three-way control valve main body；Described first
Gas vent is arranged between the first outlet interface and first shut-off valve.
Preferably, the three-way control valve further includes the second shut-off valve, the three-way control valve main body be additionally provided with for
Second gas vent of outside connection, the second shut-off valve setting close on second outlet in the three-way control valve main body and connect
The side of mouth, to cut off or be connected to the gas circuit between the second outlet interface and the three-way control valve main body；Described second
Gas vent is arranged between the second outlet interface and second shut-off valve.
Preferably, first gas vent is arranged in the bottom of the three-way control valve main body.
Preferably, the temperature sampler includes the temperature that several are used to receive the SAW Temperature Sensors transmission
The collector antenna of degrees of data.
Preferably, the detector housing is organic glass material.
Preferably, the processing component shell is organic glass material.
Compared with the existing technology, a kind of advantageous effect of manoscopy device provided in an embodiment of the present invention is：
The manoscopy device includes：Three-way control valve, the three-way control valve include three-way control valve main body, the threeway
Controlling valve body has intake interface, the first outlet interface, the second outlet interface；The intake interface is used to seal with gas-insulated
Close the density monitor orifice of combined electrical apparatus；The three-way control valve main body is used for by the first outlet interface and machine
Tool formula density monitor is connected to.Several hygrosensors, the hygrosensor setting is closed in the gas-insulated combines
On the inside of the flange of the shell of electric appliance, the hygrosensor includes the temperature number for detecting the hygrosensor present position
According to SAW Temperature Sensors；Processing component, the processing component include processing component shell and are arranged at the place
Manage the pressure sensor of the temperature sampler inside assembly housing and the pressure data for detecting present position；The temperature is adopted
Storage is wirelessly connected with the SAW Temperature Sensors；The processing component shell is equipped with air-path interface and egress bus,
The air-path interface and the second outlet orifice, the processing component are used for and convergence control cabinet electricity by the egress bus
Gas connects.The device can reduce the measurement error generated due to temperature change, have the good linearity, high certainty of measurement, measuring point
It is reasonably distributed, is applied widely, anti-seismic performance is good, complete intelligentized advantage.
Description of the drawings
Fig. 1 is the whole installation diagram of manoscopy device provided in an embodiment of the present invention；
Fig. 2 is the structural front view of three-way control valve described in Fig. 1；
Fig. 3 is the structure upward view of three-way control valve described in Fig. 1；
Fig. 4 is the structural side view of three-way control valve described in Fig. 1；
Fig. 5 is the structural front view of hygrosensor described in Fig. 1；
Fig. 6 is the structural side view of hygrosensor described in Fig. 1；
Fig. 7 is the structure chart of processing component described in Fig. 1.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig.1~Fig. 7, wherein Fig. 1 is the whole assembly of manoscopy device provided in an embodiment of the present invention
Figure；Fig. 2 is the structural front view of three-way control valve described in Fig. 1；Fig. 3 is the structure upward view of three-way control valve described in Fig. 1；
Fig. 4 is the structural side view of three-way control valve described in Fig. 1；Fig. 5 is the structural front view of hygrosensor described in Fig. 1；Fig. 6
It is the structural side view of hygrosensor described in Fig. 1；Fig. 7 is the structure chart of processing component described in Fig. 1.
The manoscopy device is applied to sulfur hexafluoride (referred to as：SF6) on gas insulated switchgear, tool
Body includes：
Three-way control valve 1, the three-way control valve 1 include three-way control valve main body 111, the three-way control valve main body
111 have intake interface 112, the first outlet interface 113, the second outlet interface 114；The intake interface 112 is used for and gas
The density monitor orifice of insulation and obturation combined electrical apparatus；The three-way control valve main body 111 is connect by first outlet
Mouth 113 with mechanical density monitor for being connected to.
The shell in the gas insulated switchgear is arranged in several hygrosensors 2, the hygrosensor 2
Flange on the inside of, the hygrosensor 2 includes the sound table of the temperature data for detecting 2 present position of the hygrosensor
Surface wave temperature sensor 21；
Processing component 3, the processing component 3 include processing component shell 31 and are arranged in the processing component shell 31
The pressure sensor 33 of internal temperature sampler 32 and the pressure data for detecting present position；The temperature sampler 32
It is wirelessly connected with the SAW Temperature Sensors 21；The processing component shell 31 is equipped with air-path interface 34 and egress bus
35, the air-path interface 34 is connected to the second outlet interface 114, and the processing component 3 is used by the egress bus 35
It is electrically connected in convergence control cabinet.
The three-way control valve main body 111 is metal aluminium material.Wherein, the through-hole internal diameter of the intake interface 112 and institute
The through-hole internal diameter for stating density monitor interface is equal；Between the intake interface 112 and the density monitor interface, described
Between one outlet interface 113 and mechanical density monitor, between the second outlet interface 114 and the air-path interface 34
Equipped with sealing ring, accordingly, the intake interface 112, the first outlet interface 113, the second outlet interface 114 are equipped with
Place the seal groove 119 of the sealing ring, the intake interface 112 and the density monitor interface, first outlet
Interface 113 is realized by sealing ring with mechanical density monitor, the second outlet interface 114 with the air-path interface 34
Sealing, prevents the gas circuit between the gas insulated switchgear, the three-way control valve main body 111, processing component 3 from letting out
Leakage, to improve the gas pressure detection precision to the gas insulated switchgear.
The temperature data of 2 present position of the hygrosensor is acquired using SAW Temperature Sensors 21, and there is body
Product advantage small, without power supply, can accurately reflect the temperature of the plenum interior of the surveyed gas insulated switchgear
Degree distribution, accuracy of detection is high, can acquire the temperature data of position in real time.
The manoscopy device can reduce the measurement error generated due to temperature change, good with the linearity,
High certainty of measurement, measuring point are reasonably distributed, are applied widely, anti-seismic performance is good, complete intelligentized advantage.
In a kind of optional embodiment, the hygrosensor 2 further includes detector housing 22, fixing piece 23, described
Detector housing 22 is set on the fixing piece 23, and the fixing piece 23 is used for and the gas insulated switchgear
The flange inside thread of shell connects, and the SAW Temperature Sensors 21 are arranged in the bottom of the detector housing 22.
Wherein, the fixing piece 23 is standing screw, outer diameter and is arranged in the gas insulated switchgear
The flange face of shell and the screw hole outer diameter of disc insulator match, and length, which is more than to close across the gas-insulated, to be combined
The thickness summation of the flange face of electric appliance and the flange face of disc insulator, so that the fixing piece 23 is enough across the gas
The flange face of the shell of insulation and obturation combined electrical apparatus and the flange face of disc insulator, several described hygrosensors 2 pass through
The fixing piece 23 is uniformly distributed on the inside of the flange of the shell both sides of the gas insulated switchgear.The detection
22 bottom of device shell is the concave surface to match with the shell of the gas insulated switchgear, and the surface acoustic wave temperature passes
Sensor 21 is arranged on the inside of the concave surface.
In a kind of optional embodiment, the quantity of the hygrosensor 2 is 4, and is separately positioned on the gas
The top and bottom of the shell both sides of insulation and obturation combined electrical apparatus.
In the present embodiment, by the way that hygrosensor described in two of which 2 is arranged in the gas-insulated closing combination
Top and bottom on the inside of the flange face of the shell side of electric appliance, other two described hygrosensor 2 are arranged in the gas
Top and bottom on the inside of the flange face of the shell other side of insulation and obturation combined electrical apparatus can accurately acquire gas described in 4 tunnels
The temperature data of insulation and obturation combined electrical apparatus reduces temperature error.
In a kind of optional embodiment, the processing component 3 further includes being arranged inside the processing component shell 31
Switching Power Supply 36, the Switching Power Supply 36 is electrically connected with the pressure sensor 33, the temperature sampler 32 respectively, described
Switching Power Supply 36 is used to be electrically connected with convergence control cabinet by the egress bus 35.
In a kind of optional embodiment, the three-way control valve 1 further includes the first shut-off valve 115, the threeway control
Valve body 111 is additionally provided with the first gas vent 116 for being connected to outside, and first shut-off valve 115 is arranged in the threeway
Control valve body 111 closes on the side of the first outlet interface 113, with cut off or be connected to the first outlet interface 113 with
Gas circuit between 1 main body of the three-way control valve；First gas vent 116 is arranged in the first outlet interface 113 and institute
It states between the first shut-off valve 115.
In a kind of optional embodiment, the three-way control valve 1 further includes the second shut-off valve 117, the threeway control
Valve body 111 is additionally provided with the second gas vent 118 for being connected to outside, and second shut-off valve 117 is arranged in the threeway
Control valve body 111 closes on the side of the second outlet interface 114, with cut off or be connected to the second outlet interface 114 with
Gas circuit between 1 main body of the three-way control valve；Second gas vent 118 is arranged in the second outlet interface 114 and institute
It states between the second shut-off valve 117.
First outlet can be cut off or be connected to respectively by first shut-off valve 115 with the second shut-off valve 117 to connect
The processing component 3 that the mechanical density monitors or the second outlet interface 114 that mouth 113 is connected are connected, it is convenient to each component
It is overhauled or is replaced；First gas vent 116 for beating manually when first shut-off valve 115 is in dissengaged positions
It opens, the first outlet interface 113 of release connects the gas pressure of gas circuit in mechanical density monitor；Second gas vent
118 for opening manually when second shut-off valve 117 is in dissengaged positions, and the second outlet interface 114 of release is connected
The gas pressure of gas circuit in processing component 3.
In a kind of optional embodiment, first gas vent 116 is arranged at the bottom of 1 main body of the three-way control valve
Portion.
In a kind of optional embodiment, second gas vent 118 is arranged at the bottom of 1 main body of the three-way control valve
Portion.
In a kind of optional embodiment, the temperature sampler 32 includes several for receiving the surface acoustic wave temperature
Spend the collector antenna for the temperature data that sensor 21 transmits.Preferably, the quantity of the collector antenna is 4, right respectively
4 top and bottom surface acoustic wave temperature sensing being arranged in the shell both sides of the gas insulated switchgear should be acquired
The temperature data that device 21 acquires.
In a kind of optional embodiment, the detector housing 22 is organic glass material.
2 shell of the hygrosensor is high temperature resistant organic glass material, degree of protection IP65.
In a kind of optional embodiment, the processing component shell 31 is organic glass material.In this embodiment, in addition to
There are gas circuit circulations outside the air-path interface 34 outside, and the processing component shell 31 is integral type Seal Design.
The operation principle of the manoscopy device is as follows：
The switch power supply 36 connects the alternating current of external convergence control cabinet by the egress bus 35 of processing component 3
Pressure, and be that temperature sampler 32 and pressure sensor 33 are powered by internal rectification output direct current.The temperature sampler 32
Built-in collector antenna, the temperature data of SAW Temperature Sensors wireless transmission described in reception sound, in the present embodiment,
Amount to four groups of temperature datas；The pressure sensor 33 is located at 34 top position of air-path interface of the processing component 3, adopts in real time
Collect the pressure data of position.The egress bus 35 is that the unique electrical of the processing component 3 exports, and electrical wiring is logical
It crosses epoxy to be cast at the egress bus 35, it is silent to form gas circuit.The processing component 3 is by the egress bus 35 to remittance
Control cabinet transmission acquired temperature data and pressure data, wherein the egress bus 35 and convergence control cabinet carry out information exchange with
Electrical interconnection specifically transmits four roads comprising alternating-current electric connection two-way, temperature data and pressure data transmission of one line amounts to seven tunnels
Signal.
After convergence control cabinet receives the temperature data and pressure data of the transmission of manoscopy device, by temperature data and pressure
Force data teletransmission substitutes into the temperature data obtained by measuring to data processing centre in preset GIS inner plenums simulation model
With pressure data, calculates and obtain the current SF6 gas density is value of surveyed GIS inner plenums, and be compared with rated value；Work as meter
When calculating the current SF6 gas density is value of gained less than specified locking value, sends out and close with GIS circuit breaker operation mechanisms to master control room
Lock signal；When the current SF6 gas density is value for calculating gained is less than specified alarming value and is more than specified locking value, to master control
Room sends out alarm signal, so that operations staff refers to.
Compared with the existing technology, a kind of advantageous effect of manoscopy device provided in an embodiment of the present invention is：
The manoscopy device includes：Three-way control valve 1, the three-way control valve 1 include three-way control valve main body 111, institute
Three-way control valve main body 111 is stated with intake interface 112, the first outlet interface 113, the second outlet interface 114；The air inlet connecting
Mouth 112 is for the density monitor orifice with gas insulated switchgear；The three-way control valve main body 111 passes through
The first outlet interface 113 with mechanical density monitor for being connected to.Several hygrosensors 2, the temperature sensing
Device 2 is arranged on the inside of the flange of the shell of the gas insulated switchgear, and the hygrosensor 2 includes for detecting
The SAW Temperature Sensors 21 of the temperature data of 2 present position of the hygrosensor；Processing component 3, the processing group
Part 3 is including processing component shell 31 and the temperature sampler 32 being arranged inside the processing component shell 31 and for detecting
The pressure sensor 33 of the pressure data of present position；The temperature sampler 32 and 21 nothing of the SAW Temperature Sensors
Line connects；The processing component shell 31 is equipped with air-path interface 34 and egress bus 35, the air-path interface 34 and described second
Outlet interface 114 is connected to, and the processing component 3 is used to be electrically connected with convergence control cabinet by the egress bus 35.The device energy
It is enough to reduce the measurement error generated due to temperature change, there is the good linearity, high certainty of measurement, measuring point to be reasonably distributed, be applicable in model
Enclose that wide, anti-seismic performance is good, complete intelligentized advantage.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of manoscopy device, which is characterized in that including：
Three-way control valve, the three-way control valve have intake interface, the first outlet interface, the second outlet interface；The air inlet
Interface with the density monitor interface of gas insulated switchgear for connecting, the through-hole internal diameter of the intake interface and institute
The through-hole internal diameter for stating density monitor interface is equal；The three-way control valve by the first outlet interface be used for it is mechanical
Density monitor is connected to；
Hygrosensor, the hygrosensor include the surface acoustic wave temperature sensing of the temperature data for detecting present position
Device, the SAW Temperature Sensors are arranged on the inside of the flange of the shell of the gas insulated switchgear；
Processing component, the processing component include processing component shell and are arranged temperature in the processing component enclosure interior
The pressure sensor of collector and pressure data for detecting present position；The temperature sampler and the surface acoustic wave temperature
Spend sensor wireless connection；The processing component shell is equipped with air-path interface and egress bus, the air-path interface and described the
Two outlet interfaces connect, and the processing component is used to be electrically connected with convergence control cabinet by the egress bus.
2. manoscopy device as described in claim 1, which is characterized in that the hygrosensor further includes detector
Shell, fixing piece, the detector housing are set on the fixing piece, and the fixing piece is used to close with the gas-insulated
The flange inside thread of the shell of combined electrical apparatus connects, and the SAW Temperature Sensors are arranged in the detector housing
Bottom.
3. manoscopy device as claimed in claim 1 or 2, which is characterized in that the quantity of the hygrosensor is 4
It is a, and it is separately positioned on the top and bottom of the shell both sides of the gas insulated switchgear.
4. manoscopy device as described in claim 1, which is characterized in that the processing component further includes being arranged in institute
State the Switching Power Supply of processing component enclosure interior, the Switching Power Supply respectively with the pressure sensor, the temperature sampler
Electrical connection, the Switching Power Supply are used to be electrically connected with convergence control cabinet by the egress bus.
5. manoscopy device as described in claim 1, which is characterized in that the three-way control valve further includes first section
Only valve, the three-way control valve main body are additionally provided with the first gas vent for being connected to outside, and the first shut-off valve setting exists
The three-way control valve main body closes on the side of the first outlet interface, to cut off or be connected to the first outlet interface and institute
State the gas circuit between three-way control valve main body；The first gas vent setting ends in the first outlet interface and described first
Between valve.
6. the manoscopy device as described in claim 1 or 5, which is characterized in that the three-way control valve further includes
Two shut-off valves, the three-way control valve main body are additionally provided with the second gas vent for being connected to outside, and second shut-off valve is set
The side that the second outlet interface is closed in the three-way control valve main body is set, to cut off or be connected to the second outlet interface
With the gas circuit between the three-way control valve main body；Second gas vent is arranged in the second outlet interface and described second
Between shut-off valve.
7. manoscopy device as claimed in claim 5, which is characterized in that first gas vent is arranged described three
The bottom of logical control valve body.
8. manoscopy device as described in claim 1, which is characterized in that the temperature sampler includes several use
In the collector antenna for the temperature data for receiving the SAW Temperature Sensors transmission.
9. manoscopy device as claimed in claim 2, which is characterized in that the detector housing is organic glass material
Matter.
10. manoscopy device as described in claim 1, which is characterized in that the processing component shell is organic glass
Glass material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810668976.4A CN108801853B (en) | 2018-06-26 | 2018-06-26 | Gas density measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810668976.4A CN108801853B (en) | 2018-06-26 | 2018-06-26 | Gas density measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108801853A true CN108801853A (en) | 2018-11-13 |
| CN108801853B CN108801853B (en) | 2021-04-16 |
Family
ID=64071780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810668976.4A Active CN108801853B (en) | 2018-06-26 | 2018-06-26 | Gas density measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108801853B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2637872Y (en) * | 2003-07-09 | 2004-09-01 | 上海珂利电气有限公司 | Adapter seat capable of proceeding gas density relay calibration in SF6 electric switch |
| CN2637873Y (en) * | 2003-07-09 | 2004-09-01 | 上海珂利电气有限公司 | Adapler seat capable of proceeding gas density relay calibration in SF6 electric switch |
| CN201820704U (en) * | 2010-09-01 | 2011-05-04 | 上海乐研电气科技有限公司 | Connecting device for checking gas density relay |
| CN104616931A (en) * | 2015-02-02 | 2015-05-13 | 国家电网公司 | Low temperature-resistant digital SF6 relay |
| CN205680617U (en) * | 2016-05-19 | 2016-11-09 | 韦弗斯检测技术（上海）有限公司 | A kind of valve control SF with error locking proof function6density monitor three-way connection |
| CN106352132A (en) * | 2016-09-14 | 2017-01-25 | 国家电网公司 | T-junction used for detecting pointer type SF6 gas density controller |
| US9559517B2 (en) * | 2014-09-16 | 2017-01-31 | Hoffman Enclosures, Inc. | Encapsulation of components and a low energy circuit for hazardous locations |
-
2018
- 2018-06-26 CN CN201810668976.4A patent/CN108801853B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2637872Y (en) * | 2003-07-09 | 2004-09-01 | 上海珂利电气有限公司 | Adapter seat capable of proceeding gas density relay calibration in SF6 electric switch |
| CN2637873Y (en) * | 2003-07-09 | 2004-09-01 | 上海珂利电气有限公司 | Adapler seat capable of proceeding gas density relay calibration in SF6 electric switch |
| CN201820704U (en) * | 2010-09-01 | 2011-05-04 | 上海乐研电气科技有限公司 | Connecting device for checking gas density relay |
| US9559517B2 (en) * | 2014-09-16 | 2017-01-31 | Hoffman Enclosures, Inc. | Encapsulation of components and a low energy circuit for hazardous locations |
| CN104616931A (en) * | 2015-02-02 | 2015-05-13 | 国家电网公司 | Low temperature-resistant digital SF6 relay |
| CN205680617U (en) * | 2016-05-19 | 2016-11-09 | 韦弗斯检测技术（上海）有限公司 | A kind of valve control SF with error locking proof function6density monitor three-way connection |
| CN106352132A (en) * | 2016-09-14 | 2017-01-25 | 国家电网公司 | T-junction used for detecting pointer type SF6 gas density controller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108801853B (en) | 2021-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104616931B (en) | A kind of low temperature resistant digital SF6 relay | |
| CN103426620B (en) | Open-close type electronic current transformer | |
| CN202916229U (en) | Sulfur hexafluoride density micro-water monitoring device | |
| CN110444442A (en) | A kind of teletransmission gas density relay system and its method of calibration | |
| EP4027155A1 (en) | Transformation method for gas density relay, and gas density relay having online self-check function and check method thereof | |
| CN204346980U (en) | A kind of detector for SF6 gas concentration on-line monitoring | |
| CN208537339U (en) | Density monitor and gas insulated switchgear | |
| CN208688940U (en) | A kind of manoscopy device | |
| CN108801854A (en) | A kind of manoscopy device | |
| CN108801853A (en) | A kind of manoscopy device | |
| CN208688941U (en) | A kind of manoscopy device | |
| CN208026422U (en) | A kind of GIS air pressure inside monitoring devices based on temperature sensor | |
| CN106908188A (en) | A kind of GIS air pressure inside supervising devices based on temperature sensor | |
| CN110429005A (en) | A kind of gas density relay and monitoring system of on-line monitoring gas micro water content | |
| CN110531811A (en) | A kind of electrical equipment gas tonifying Qi control device based on edge calculations | |
| CN201903491U (en) | Micro-water density online monitoring instrument for high-voltage electric power equipment | |
| CN210774152U (en) | SF6 gas state monitoring system for GIS equipment | |
| CN205177705U (en) | Gas density relay with external gas density level -indicator | |
| CN107588866A (en) | A kind of GIS disc insulators system for detecting temperature | |
| CN208688687U (en) | A kind of information centralized processor | |
| CN209016496U (en) | A kind of electric control box | |
| CN208093438U (en) | A kind of gas density relay of middle part outlet | |
| CN102081027A (en) | Mechatronics density transmitter | |
| CN202631009U (en) | SF6 gas online monitoring system for high voltage circuit breaker | |
| CN213874482U (en) | Wireless intelligent sensor for transformer substation online monitoring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |