CN108303343B - Novel SF for GIS 6 Density on-line monitoring simulation test device - Google Patents
Novel SF for GIS 6 Density on-line monitoring simulation test device Download PDFInfo
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- CN108303343B CN108303343B CN201810190434.0A CN201810190434A CN108303343B CN 108303343 B CN108303343 B CN 108303343B CN 201810190434 A CN201810190434 A CN 201810190434A CN 108303343 B CN108303343 B CN 108303343B
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- 238000004088 simulation Methods 0.000 title claims abstract description 52
- 238000012544 monitoring process Methods 0.000 title claims abstract description 32
- 238000012360 testing method Methods 0.000 title claims abstract description 18
- 239000004606 Fillers/Extenders Substances 0.000 claims abstract description 15
- 230000003068 static effect Effects 0.000 claims abstract description 11
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 5
- 229910018503 SF6 Inorganic materials 0.000 claims description 4
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 4
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 4
- 230000001932 seasonal effect Effects 0.000 claims 1
- 238000005070 sampling Methods 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000000875 corresponding effect Effects 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
-
- 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
-
- 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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
- G01R31/3274—Details related to measuring, e.g. sensing, displaying or computing; Measuring of variables related to the contact pieces, e.g. wear, position or resistance
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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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3275—Fault detection or status indication
Abstract
The invention discloses a novel SF for GIS 6 The density on-line monitoring simulation test device comprises a system self-cleaning pipeline consisting of a manual ball valve S1, a GIS simulation device, a manual ball valve S2, a manual ball valve S7 and the like; the system comprises a GIS simulation device, a first pressure gauge, a pressure transmitter, a manual ball valve S13, a pipeline extender, a compensator and the like, wherein the simulation static dead zone on-line monitoring pipeline comprises a GIS simulation device, a first pressure gauge, a pressure transmitter, a manual ball valve S13, a pipeline extender, a compensator and the like; the manual ball valve S1 is sequentially connected in series and is connected with the manual ball valve S9, the electric ball valve V1, the second pressure gauge, the compressor, the electric ball valve V2, the third pressure gauge, the heat exchange device, the voltage and current stabilizing device and the SF through a second pipeline interface 6 And a circulation disturbance on-line monitoring pipeline composed of a density relay, a manual ball valve S8 and the like. The invention can simulate gas temperature change, a fixed point sampling static dead zone, gas faults in a gas chamber, and a circulation disturbance function, and can realize online monitoring, thereby providing technical parameter support for accurate measurement of GIS density.
Description
Technical Field
The invention relates to the technical field of substation monitoring, in particular to a novel SF for GIS 6 The density on-line monitoring simulation test device.
Background
SF in GIS air chamber 6 The gas density is indirectly reflected by its pressure, which varies with the gas temperature when the density is constant. When the GIS operates, the conductor continuously emits heat, the temperature in the air chamber is increased to some extent, and the pressure is correspondingly increased. Meanwhile, the pressure is affected by the change of the external environment temperature such as seasons, day and night.
SF of GIS air chamber 6 The gas state monitoring is usually realized by adopting a mode of mechanically matching with a digital remote transmission density relay, so that the functions of displaying, alarming and locking the on-site density, pressure and temperature signals and outputting the locked contact signals and remotely transmitting data in real time are realized. But due to fixed point sampling, and SF 6 The gas in the gas measurement area does not flow, and a static dead zone is formed, so that the GIS density meter cannot effectively reflect the actual pressure value and density in the GIS.
To truly restore SF 6 The gas density on-line monitoring actual condition, more accurately knowing static conditions such as flow of gas dead zone in GIS, it is necessary to design a simulation test device with functions of simulating gas temperature change, sampling static dead zone at fixed point, gas fault in gas chamber and circulating disturbance, and providing technical parameter support for accurate measurement of GIS density.
Disclosure of Invention
The technical problem to be solved by the invention is that the prior art can not accurately know static state such as the flow of the gas dead zone in the GISUnder the condition, a novel SF for GIS is provided 6 The density on-line monitoring simulation test device.
The invention is realized by the following technical scheme: novel SF for GIS 6 The density on-line monitoring simulation test device comprises a GIS simulation device, an ambient temperature simulation chamber, a heating device and a mechanical SF 6 Density relay, thimble type joint and digital SF 6 A density relay, a compensator, a pipeline extender, a pressure transmitter, a first pressure gauge, a second pressure gauge, a compressor, a third pressure gauge, a heat exchange device, a vacuum pump, a vacuum gauge, a first pipeline interface, a second pipeline interface and an SF 6 Steel cylinder interface, voltage and current stabilizing device and SF 6 A density relay, manual ball valves S1-S3 and S5-S14, an electric ball valve V1-2 and a vacuum inflation electromagnetic valve V3;
the manual ball valve S1, the GIS simulation device, the manual ball valve S2 and the manual ball valve S7 are sequentially connected in series and are connected with the manual ball valve S11, the vacuum gauge, the vacuum inflation electromagnetic valve V3 and the vacuum pump through a first pipeline interface to form a system self-cleaning pipeline;
the GIS simulator, the first pressure gauge, the pressure transmitter, the manual ball valve S13, the pipeline extender, the compensator and the mechanical SF 6 Density relay, thimble type joint and digital SF 6 The density relays are sequentially connected and arranged in an environment temperature simulation chamber to form a simulation static dead zone on-line monitoring pipeline;
the manual ball valve S1 is sequentially connected in series and is connected with the manual ball valve S9, the electric ball valve V1, the second pressure gauge, the compressor, the electric ball valve V2, the third pressure gauge, the heat exchange device, the voltage and current stabilizing device and the SF through a second pipeline interface 6 The density relay and the manual ball valve S8 are sequentially connected and then sequentially connected with the GIS simulation device through the manual ball valve S2, the manual ball valve S3, the manual ball valve S5 and the manual ball valve S7 after sequentially passing through the first pipeline interface and the manual ball valve S7 to form a circulating disturbance on-line monitoring pipeline;
one end of the manual ball valve S14 is connected between the manual ball valve S9 and the second pipeline interface, and the other end of the manual ball valve S14 is connected between the manual ball valve S11 and the vacuum gauge;
the manual ballOne end of the valve S10 is connected between the third pressure gauge and the heat exchange device, and the other end is connected with the SF 6 A steel cylinder connector;
one end of the manual ball valve S12 is connected between the manual ball valve S1 and the second pipeline connector, and the other end of the manual ball valve S12 is connected between the manual ball valve S13 and the pipeline extender.
As one of the preferable modes of the invention, the GIS simulation device is provided with a safety valve, a drain outlet and a drain valve S4 are arranged at the middle position of the bottom, and pipelines respectively connected with manual ball valves S2, S3, S5 and S6 are provided with pipelines with different directions and inclination angles of 45 degrees, so that the internal SF is realized 6 The gas is fully disturbed.
As one of the preferable modes of the invention, the invention further comprises a temperature and humidity control device which is arranged in the environment temperature simulation room and used for simulating the temperature process of the external environment influences such as site seasonality, day and night.
As one of the preferable modes of the invention, the temperature and humidity transmitter is also included, and the temperature and humidity transmitters are three and are connected with the temperature and humidity control device.
As one of the preferable modes of the invention, the heating device is internally provided with a temperature sensor, and a PID temperature control mode is adopted for simulating the current passing through the conductor temperature rise process and the fault condition in the GIS.
As one preferable embodiment of the present invention, the temperature sensor includes a first temperature sensor and a second temperature sensor, and the first temperature sensor and the second temperature sensor are provided at upper and lower portions in the GIS simulator.
As one of preferable modes of the invention, the SF for GIS 6 The control system of the density on-line monitoring simulation test device adopts an upper computer+PLC control mode, a temperature and humidity control device (3) and a PLC are in communication connection with an upper computer RS485, after the system is started, corresponding parameter setting is carried out on upper computer software, and an instruction is sent to carry out real-time data acquisition and storage and execute corresponding actions according to a program.
As one of the preferable modes of the invention, the PLC is connected with the mechanical SF 6 Density relay and digital SF 6 Density relay, SF 6 Density ofThe device comprises a relay, a heating device, a heat exchange device, a compressor, a vacuum pump, an electric ball valve V1-2, a vacuum inflation electromagnetic valve V3, a pressure transmitter and a temperature sensor.
As one of preferable modes of the present invention, the SF 6 The density relay is also provided with an audible and visual alarm.
Compared with the prior art, the invention has the advantages that: the invention can simulate gas temperature change, a fixed point sampling static dead zone, gas faults in a gas chamber, and a circulation disturbance function, and can realize online monitoring, thereby providing technical parameter support for accurate measurement of GIS density.
Drawings
FIG. 1 is a schematic diagram of the principle and construction of the present invention;
fig. 2 is a diagram of a monitoring system of the present invention.
Detailed Description
The following describes in detail the examples of the present invention, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of protection of the present invention is not limited to the following examples.
As shown in fig. 1-2: novel SF for GIS 6 The density on-line monitoring simulation test device is characterized by comprising a GIS simulation device (1), an ambient temperature simulation chamber (2), a heating device (4) and a mechanical SF (sulfur hexafluoride) 6 Density relay (5), thimble type joint (6) and digital SF 6 A density relay (7), a compensator (8), a pipeline extender (9), a pressure transmitter (10), a first pressure gauge (11), a second pressure gauge (16), a compressor (17), a third pressure gauge (18), a heat exchange device (19), a vacuum pump (20), a vacuum gauge (21), a first pipeline interface (22), a second pipeline interface (23) and an SF (sulfur hexafluoride) 6 Steel bottle interface (24), voltage and current stabilizing device (25), SF 6 A density relay (26), manual ball valves S1-S3 and S5-S14, an electric ball valve V1-2 and a vacuum inflation electromagnetic valve V3;
the manual ball valve S1, the GIS simulation device (1), the manual ball valve S2 and the manual ball valve S7 are sequentially connected in series and are connected with the manual ball valve S11, the vacuum gauge (21), the vacuum inflation electromagnetic valve V3 and the vacuum pump (20) through a first pipeline interface (22) to form a system self-cleaning pipeline;
the GIS simulation device (1), the first pressure gauge (11), the pressure transmitter (10), the manual ball valve S13, the pipeline extender (9), the compensator (8) and the mechanical SF 6 Density relay (5), thimble type joint (6) and digital SF 6 The density relay (7) is sequentially connected and arranged in the environment temperature simulation chamber (2) to form a simulation static dead zone on-line monitoring pipeline;
the manual ball valve S1 is sequentially connected in series and is connected with the manual ball valve S9, the electric ball valve V1, the second pressure gauge (16), the compressor (17), the electric ball valve V2, the third pressure gauge (18), the heat exchange device (19), the voltage and current stabilizing device (25) and the SF through a second pipeline interface (23) 6 The density relay (26) and the manual ball valve S8 are sequentially connected and then sequentially pass through the first pipeline interface (22) and the manual ball valve S7, and then are respectively connected with the GIS simulation device (1) through the manual ball valve S2, the manual ball valve S3, the manual ball valve S5 and the manual ball valve S7 to form a circulating disturbance on-line monitoring pipeline;
one end of the manual ball valve S14 is connected between the manual ball valve S9 and the second pipeline interface (23), and the other end of the manual ball valve S14 is connected between the manual ball valve S11 and the vacuum gauge (21);
one end of the manual ball valve S10 is connected between the third pressure gauge (18) and the heat exchange device (19), and the other end is connected with the SF 6 A cylinder port (24);
one end of the manual ball valve S12 is connected between the manual ball valve S1 and the second pipeline connector (23), and the other end of the manual ball valve S12 is connected between the manual ball valve S13 and the pipeline extender (9).
As one of the preferable modes of the invention, the GIS simulation device (1) is provided with a safety valve (12), a drain outlet and a drain valve S4 are arranged at the middle position of the bottom, pipelines respectively connected with manual ball valves S2, S3, S5 and S6 are internally provided with pipelines with 45-degree inclination angles in different directions, so that the internal SF is realized 6 The gas is fully disturbed.
As one preferable mode of the invention, the invention further comprises a temperature and humidity control device (3), wherein the temperature and humidity control device (3) is arranged in the environment temperature simulation chamber (2) and is used for simulating the temperature process of the external environment such as onsite seasonality, day and night.
As one of the preferable modes of the invention, the temperature and humidity transmitter (13) is also included, and the temperature and humidity transmitters (13) are three and are connected with the temperature and humidity control device (3).
As one of the preferable modes of the invention, the heating device (4) is internally provided with a temperature sensor, and a PID temperature control mode is adopted for simulating the current passing through the conductor temperature rise process and the fault condition in the GIS.
As one preferable mode of the invention, the temperature sensor comprises a first temperature sensor (14) and a second temperature sensor (15), and the first temperature sensor (14) and the second temperature sensor (15) are arranged at the upper part and the lower part in the GIS simulation device (1).
As one of preferable modes of the invention, the SF for GIS 6 The control system of the density on-line monitoring simulation test device adopts an upper computer+PLC control mode, a temperature and humidity control device (3) and a PLC are in communication connection with an upper computer RS485, after the system is started, corresponding parameter setting is carried out on upper computer software, and an instruction is sent to carry out real-time data acquisition and storage and execute corresponding actions according to a program.
As one of the preferable modes of the invention, the PLC is connected with the mechanical SF 6 Density relay (5), digital SF 6 Density relay (7), SF 6 The device comprises a density relay (26), a heating device (4), a heat exchange device (19), a compressor (17), a vacuum pump (20), an electric ball valve V1-2, a vacuum inflation electromagnetic valve V3, a pressure transmitter (10) and a temperature sensor;
and (3) controlling the input and output of the PLC switching value: outputting electromagnetic valves V1, V2 and V3, a heating device, a heat exchange device, a vacuum pump and a compressor, and inputting three paths of density joint signals;
the PLC analog input module: the input signal comprises a mechanical type, a digital type density relay and SF 6 A density relay, a pressure transmitter and a temperature sensor 1-2;
SF 6 density relay: the collected data are GIS air chambers SF respectively 6 The temperature, pressure and density are communicated with an upper computer RS485 through a PLC, real-time monitoring and storage are carried out on the data, a threshold value is arranged in the module, and an audible and visual alarm with abnormal output is immediately started.
As one of preferable modes of the present invention, the SF 6 The density relay is also provided with an audible and visual alarm.
The following is a description of the functions and operation methods of the device:
wherein: s1-14 are manual ball valves, V1 and V2 are electric ball valves, and V3 is a vacuum inflation electromagnetic valve; 1 (novel GIS simulation device) is provided with 12 safety valves, a drain outlet and a drain valve S4 are arranged at the middle position of the bottom, pipelines respectively connected with manual ball valves S2, S3, S5 and S6 are provided with pipelines with different directions and inclination angles of 45 degrees, so that the SF inside is realized 6 The gas is fully disturbed; 3 (temperature and humidity control device) is used for simulating the temperature process of the external environment such as site seasonality, day and night; and 4 (heating device) is internally provided with a temperature sensor, and adopts a PID temperature control mode for simulating the fault condition of the current passing through the conductor temperature rise process and the GIS.
Description of the functionality
The original states of the manual ball valves S1-12 (S4 is a blow-down valve), the manual ball valves S14, the electric ball valves V1 and V2 and the inflation electromagnetic valve V3 are all closed states, the manual ball valve S13 is an open state, and two ends of the pipeline interfaces 1 and 23 are connected through pipelines.
Self-cleaning pipeline of the system: and opening the manual ball valves S1, S2, S7, S8, S9 and S12, opening the inflation electromagnetic valves V3 and 20 and vacuum pumps, and opening the manual ball valve S11 to start vacuumizing and self-cleaning the system pipeline. When the 21 vacuum gauge is 133Pa, the electric ball valves V1, V2 and the manual ball valve S10 are opened (check SF is necessary) 6 The cylinder valve is in a closed state), and after 2 minutes, the manual ball valve S11, the inflation solenoid valves V3 and 20, the vacuum pumps, the electric ball valves V1 and V2 and the manual ball valves S1, S2, S7, S8, S9, S10 and S12 are sequentially closed.
Filling SF 6 Gas: will be 24SF 6 The steel bottle connector is connected with SF through a pipeline and a pressure reducing valve 6 And (5) a steel cylinder. Starting 19 the heat exchange device, and opening the manual ball valves S1, S2, S7, S8, S9, S10 and SF 6 The steel cylinder valve is used for adjusting the outlet pressure of the pressure reducing valve to 0.7MPa, and when the 11 pressure gauge 1 shows 0.6MPa, SF is sequentially closed 6 Steel cylinder valve, manual ball valve S10, S8, S7, S2, S1, S9 and 19 heat exchange device.
Simulation of silenceOn-line monitoring pipeline of state dead zone: comprises a 1GIS simulation device, a manual ball valve S13, a 9 pipeline extender, an 8 compensator and a 5 mechanical SF which are connected in sequence 6 Density relay, 6 thimble type joint and 7 digital SF 6 A pipeline of the density relay; 5 mechanical SF 6 Density relay, 6 thimble type joint and 7 digital SF 6 The density relay adopts a market mature product; 9 (line extender) according to field SF 6 The actual sampling conditions of the density relay fixed points are made into a plurality of.
(1) And (3) pipeline gas recovery: the manual ball valve S13 is closed, the manual ball valves S9, S12, S2, S7 and S8 are sequentially opened, the heat exchange device, the electric ball valves V2, V1 and 17 compressors are opened 19, and when the 16 pressure gauge 2 is shown as minus 0.01MPa, the 17 compressors, the electric ball valves V2, V1 and 19 heat exchange devices and the manual ball valves S9, S12, S2, S7 and S8 are sequentially closed. And after the completion, replacing the 9-pipeline extender suitable for the corresponding simulation test.
(2) Vacuumizing: after the 9-pipe extender is replaced, the manual ball valve S12 is opened, the inflation electromagnetic valves V3 and 20 are opened, the vacuum pump is started by opening the manual ball valve S14, and when the 21-meter vacuum gauge is 133Pa, the manual ball valves S14 and S12 and the inflation electromagnetic valves V3 and 20 are sequentially closed.
(3) Static dead zone monitoring: after the vacuumizing is completed, a temperature and humidity control device 3 and a heating device 4 are started, a manual ball valve S13 and a mechanical SF 5 are opened 6 Density relay, 7 digital SF 6 The density relay is monitored and stored on line in real time. Meanwhile, a temperature sensor, a 10 pressure transmitter, a 13 temperature and humidity transmitter and a 14 temperature sensor 1 and a 15 temperature sensor 2 are arranged in the 4 heating device and monitored and stored in real time, and when the temperature sensor and the 13 temperature and humidity transmitter in the 4 heating device reach a test set threshold value, a program automatically closes the 3 temperature and humidity control device and the 4 heating device.
Circulation disturbance on-line monitoring pipeline: comprises a 1GIS simulation device, manual ball valves S1 and S9, electric ball valves V1 and V2, a 17 compressor, a 19 heat exchange device, a 25 voltage and current stabilizing device and a 26SF which are connected in sequence 6 Density relay, manual ball valves S8, S7, S2, S3, S5, S6 pipelines;
(1) and (3) cycle disturbance: and opening the manual valves S2, S7 and S8, opening 19 the heat exchange device and the electric ball valves V2, V1 and 17 compressors, opening the manual valves S1 and S9, regulating 16 the pressure gauge 2 to display less than or equal to 0.2MPa through the manual valve S9, and opening the manual valves S3, S5 and S6 to realize the uniformity or the size of the internal disturbance of the 1GIS simulation device.
(2) Disturbance on-line monitoring: starting a temperature and humidity control device 3, a heating device 4, a manual ball valve S13 and a mechanical SF 5 6 Density relay, 7 digital SF 6 The density relay is monitored and stored on line in real time. Meanwhile, a temperature sensor, a 10 pressure transmitter, a 13 temperature and humidity transmitter and a 14 temperature sensor 1, a 15 temperature sensor 2 and a 26SF6 density relay are arranged in the 4 heating device and monitored and stored in real time, and when the temperature sensor and the 13 temperature and humidity transmitter arranged in the 4 heating device reach a test set threshold value, a program automatically turns off the 3 temperature and humidity control device and the 4 heating device. After the test is finished, the manual valves S1, S9, 17, the heat exchange devices of the electric ball valves V1, V2 and 19 and the manual ball valves S8, S7, S2, S3, S5 and S6 are sequentially closed.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (4)
1. Novel SF for GIS 6 The density on-line monitoring simulation test device is characterized by comprising a GIS simulation device (1), an ambient temperature simulation chamber (2), a heating device (4) and a mechanical SF (sulfur hexafluoride) 6 Density relay (5), thimble type joint (6) and digital SF 6 A density relay (7), a compensator (8), a pipeline extender (9), a pressure transmitter (10), a first pressure gauge (11), a second pressure gauge (16), a compressor (17), a third pressure gauge (18), a heat exchange device (19), a vacuum pump (20), a vacuum gauge (21), a first pipeline interface (22), a second pipeline interface (23) and an SF (sulfur hexafluoride) 6 Steel bottle interface (24), voltage and current stabilizing device (25), SF 6 A density relay (26), manual ball valves S1-S3 and S5-S14, an electric ball valve V1-2 and a vacuum inflation electromagnetic valve V3;
the manual ball valve S1, the GIS simulation device (1), the manual ball valve S2 and the manual ball valve S7 are sequentially connected in series and are connected with the manual ball valve S11, the vacuum gauge (21), the vacuum inflation electromagnetic valve V3 and the vacuum pump (20) through a first pipeline interface (22) to form a system self-cleaning pipeline;
the GIS simulation device (1), the first pressure gauge (11), the pressure transmitter (10), the manual ball valve S13, the pipeline extender (9), the compensator (8) and the mechanical SF 6 Density relay (5), thimble type joint (6) and digital SF 6 The density relay (7) is sequentially connected and arranged in the environment temperature simulation chamber (2) to form a simulation static dead zone on-line monitoring pipeline;
the manual ball valve S1 is sequentially connected in series and is connected with the manual ball valve S9, the electric ball valve V1, the second pressure gauge (16), the compressor (17), the electric ball valve V2, the third pressure gauge (18), the heat exchange device (19), the voltage and current stabilizing device (25) and the SF through a second pipeline interface (23) 6 The density relay (26) and the manual ball valve S8 are sequentially connected and then sequentially pass through the first pipeline interface (22) and the manual ball valve S7, and then are respectively connected with the GIS simulation device (1) through the manual ball valve S2, the manual ball valve S3, the manual ball valve S5 and the manual ball valve S7 to form a circulating disturbance on-line monitoring pipeline;
one end of the manual ball valve S14 is connected between the manual ball valve S9 and the second pipeline interface (23), and the other end of the manual ball valve S14 is connected between the manual ball valve S11 and the vacuum gauge (21);
one end of the manual ball valve S10 is connected between the third pressure gauge (18) and the heat exchange device (19), and the other end is connected with the SF 6 A cylinder port (24);
one end of the manual ball valve S12 is connected between the manual ball valve S1 and the second pipeline connector (23), and the other end of the manual ball valve S12 is connected between the manual ball valve S13 and the pipeline extender (9).
2. The SF for a novel GIS according to claim 1 6 The density on-line monitoring simulation test device is characterized in that the GIS simulation device (1) is provided with a safety valve (12), a drain outlet and a drain valve S4 are arranged at the middle position of the bottom, pipelines which are internally connected with manual ball valves S2, S3, S5 and S6 respectively are provided with pipelines with inclination angles of 45 degrees in different directions, so that the SF inside is realized 6 The gas is fullAnd (5) disturbance.
3. The SF for a novel GIS according to claim 1 6 The on-line density monitoring simulation test device is characterized by further comprising a temperature and humidity control device (3) and a temperature and humidity transmitter (13), wherein the temperature and humidity control device (3) is arranged in the environment temperature simulation chamber (2) and used for simulating the on-site seasonal and day-and-night external environment influence temperature process, and the temperature and humidity transmitter (13) is three and is connected with the temperature and humidity control device (3).
4. The SF for a novel GIS according to claim 1 6 The density on-line monitoring simulation test device is characterized in that a first temperature sensor (14) and a second temperature sensor (15) are arranged in the heating device (4), a PID temperature control mode is adopted for simulating the fault condition of the current passing through the conductor temperature rise process and the GIS, and the first temperature sensor (14) and the second temperature sensor (15) are arranged at the upper part and the lower part in the GIS simulation device (1).
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| CN201810190434.0A CN108303343B (en) | 2018-03-08 | 2018-03-08 | Novel SF for GIS 6 Density on-line monitoring simulation test device |
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| CN201810190434.0A CN108303343B (en) | 2018-03-08 | 2018-03-08 | Novel SF for GIS 6 Density on-line monitoring simulation test device |
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| CN108303343B true CN108303343B (en) | 2023-10-31 |
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| CN110441005B (en) * | 2019-07-29 | 2021-08-31 | 国网福建省电力有限公司检修分公司 | SF6 density relay air leakage rapid detection device and method |
| CN110535058A (en) * | 2019-09-04 | 2019-12-03 | 上海乐研电气有限公司 | Electrical system and its method of calibration with on-line sampling verifying function |
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