CN206450793U - A kind of pressure controllable type SF6 gas density is relay signal stimulation tester - Google Patents
A kind of pressure controllable type SF6 gas density is relay signal stimulation tester Download PDFInfo
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- CN206450793U CN206450793U CN201621425153.1U CN201621425153U CN206450793U CN 206450793 U CN206450793 U CN 206450793U CN 201621425153 U CN201621425153 U CN 201621425153U CN 206450793 U CN206450793 U CN 206450793U
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- 230000000638 stimulation Effects 0.000 title claims abstract description 19
- 239000007789 gas Substances 0.000 claims abstract description 99
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 238000012360 testing method Methods 0.000 claims description 54
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 3
- 208000033999 Device damage Diseases 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 210000002445 nipple Anatomy 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model provides a kind of pressure controllable type SF6 gas density is relay signal stimulation tester, and it includes SF6 gas passages unit and gas pressure intelligent control unit.SF6 gas passages unit includes built-in SF6 steel cylinders, built-in steel cylinder pressure gauge, internal air supply passage, close beta passage and internal exhaust passages；Gas pressure intelligent control unit includes sensor, controller, microprocessor, power module, touch display screen, built-in thermal printer and communication serial port.The utility model can realize that pressure is precisely controllable, and energy automatic inflating device, and efficiency is higher, and safe and reliable measurement result is more accurate, can be prevented effectively from the device damage as caused by misoperation, while avoiding closely operating personnel's suction SF6 gases.
Description
Technical field
The utility model is related to the simulation test field of power equipment, and in particular to a kind of pressure controllable type SF6 gases are close
Spend relay signal stimulation tester.
Background technology
At present, China is newly-built or is mostly gas insulated transformer substation, abbreviation GIS building intelligent substation（Gas
Insulated Substation）, its operational reliability and security be higher, and floor space is less.Dielectric is used in GIS
SF6 gases, dielectric strength is 2.33 times of air, and arc extinguishing ability is 100 times of air.Gas density is installed in GIS device
Relay is used for the change for detecting SF6 gas density is, and the operation conditions of real-time watch device SF6 pressure, its performance quality is direct
The reliable and secure operation of SF6 electrical equipments is had influence on, thus, SF6 gas density is relay is the key element of SF6 electric switches
One of.
In actual motion, the SF6 gas density is relay at scene is installed on because infrequently acting, after one period
Normal appearance acts dumb or poor contact of contacts phenomenon, and what is had there is also temperature-compensating performance variation, work as environment temperature
SF6 gas density is relay misoperation work is easily caused during change.DL/T596-1996《Power equipment preventive trial code》Rule
It is fixed：The unit that each SF6 electric switches are used should be verified periodically and signal imitation to SF6 gas density is relay.Therefore, it is right
Scene SF6 gas density is relay carry out periodic check be to prevent trouble before it happens, ensure power equipment safety reliability service must
Want one of means.
At the scene during analog signal, traditional signal imitation method is to carry out mould by using sharp implements pressing air vent
Intend.Although this method can verify whether the performance of gas density relay is normal within the specific limits, but exist following
Railway Project：First, Manual press has uncontrollability to pressure, and often build-up of pressure is excessive or too small, it is necessary to repeat
Test of many times, it is inefficient；Second, in past experiment, it there occurs that multiple gas density relay valve is damaged or gas
At mouth gas leakage scene, this with process of the test can not governor pressure release have certain relation；3rd, operating personnel closely lean on
Nearly air gauge, the SF6 gases of release are easily sucked by operating personnel, body are damaged；4th, the SF6 gases of release are direct
Air is discharged into, air is polluted, and causes gas to waste；5th, no temperature reference standard, the test knot under varying environment
Really, it is impossible to accurate expression equipment operation condition.
The content of the invention
The purpose of this utility model is to overcome shortcoming and defect of the prior art, and there is provided a kind of controllable precise, light
Pressure controllable type SF6 gas density is relay signal stimulation tester easy to operate, safely and fast.The tester can be fitted well
Work on the spot is answered, compared with traditional signal imitation method, the verification of SF6 density monitors can be more efficiently and safely completed
Work, and tonifying Qi can be carried out in time when air pressure is less than setting.
The utility model is achieved by the following technical solution：
A kind of pressure controllable type SF6 air gauge signal imitation testers, including SF6 gas passages unit and gas pressure intelligence
Can control unit.
Wherein, SF6 gas passages unit includes：
Built-in SF6 steel cylinders：Be stored with qualified SF6 gases, to carry out tonifying Qi to the not enough GIS device of air pressure；
Built-in steel cylinder pressure gauge：Connected with built-in SF6 steel cylinders, to show built-in cyclinder gas pressure；
Built-in air supply passage：Include tonifying Qi pipeline, the electric controlled gas-compensation on tonifying Qi pipeline of the built-in SF6 steel cylinders of connection
Valve and gas filling mouth, electric controlled gas-compensation valve can adjust tonifying Qi speed, and it is close that gas filling mouth connects SF6 gases by SF6 special hoses
Spend the attached gas supplementing opening of relay；It may be selected to carry out tonifying Qi when the air pressure of SF6 electrical equipments is less than setting；
Built-in testing passage：Include test pipeline, automatically controlled test valve and test valve on test pipeline are surveyed
Gas testing mouth connects the attached test mouth of SF6 gas density is relay by SF6 special hoses；
Exhaust passage：Include the discharge duct of connection test pipeline, electric control exhaust valve on discharge duct and
Exhaust nozzle；Measuring air pressure is adjusted to discharge the SF6 gases in built-in testing passage for exhaust passage, realizes low
Air pressure is simulated.
Gas pressure intelligent control unit includes：
Sensor：Include temperature sensor and gas pressure sensor, it is placed in test pipeline, to real-time
Monitoring and test pipeline internal temperature and air pressure, and temperature and air pressure Value Data are uploaded to Micro-processor MCV；
Touch display screen：To input alarm pressure value and locking pressure value and for experimental data to Micro-processor MCV
Real-time display；
Controller：Including drain tap high-speed controller and tonifying Qi and test valve high-speed controller, both pass through respectively
The down order of Micro-processor MCV controls electric control exhaust valve, electric controlled gas-compensation and automatically controlled test valve event；
Micro-processor MCV：Micro-processor MCV control electric control exhaust valve exhaust is to simulate low pressure, and Micro-processor MCV leads to
Alarm signal and block signal that outside p-wire receives SF6 gas density is relay are crossed, to verify SF6 gas density is relay
Device whether can air pressure be equal to or less than alarm pressure value when Normal Alarm and whether can pressure value be equal to or less than locking pressure
Normal control SF6 electric switch lockings during force value.
Micro-processor MCV receives temperature and the air pressure Value Data that sensor is uploaded, and actual measurement atmospheric pressure value is converted into standard
At a temperature of atmospheric pressure value；Micro-processor MCV by atmospheric pressure value under the normal temperature with setting threshold value（Alarm pressure value and locking pressure
Force value）Contrasted, so as to export corresponding actions signal to controller, controller controls corresponding electric control valve to be turned on and off coming
Realize that low pressure is simulated；Micro-processor MCV is also connected by p-wire with SF6 gas density is relay, close to receive SF6 gases
The alarm signal or block signal of relay are spent, to verify whether SF6 gas density is relay can be equal to or low in measuring air pressure
The Normal Alarm and normal control SF6 electric switches are closed when pressure value is equal to or less than locking pressure value when alarm pressure value
Lock, it is specific as follows：
When observed pressure value is higher than alarm pressure value, Micro-processor MCV is issued an order open electric control exhaust valve, to be measured to ping
When road air pressure inside is gradually decrease to below alarm pressure value or alarm pressure value, Micro-processor MCV is issued an order closing electric control exhaust
Valve, now Micro-processor MCV can receive the alarm signal of SF6 gas density is relay verify by outside p-wire
SF6 gas density is relay whether can air pressure be equal to or less than alarm pressure value when Normal Alarm；The Micro-processor MCV is also
The continuation checking command of touch display screen can be received, Micro-processor MCV, which receives to issue an order after continuation checking command, is again turned on electricity
Control drain tap, when the pressure value in TCH test channel is gradually decrease to below locking pressure value or locking pressure value, microprocessor
Device MCU can receive the block signal of SF6 gas density is relay to verify SF6 gas density is relay by outside p-wire
Whether can the normal control SF6 electric switch lockings when pressure value is equal to or less than locking pressure value.
The data of experiment can in real time be shown by touch display screen.
As more excellent, built-in thermal printer is additionally provided with, for the printout of test data, record is realized and preserves
Test data.
It is divided into red, green, Bai Sanse as more excellent, the foregoing manometric dial of built-in steel cylinder, pointer points to white area
Domain representation pressure is normal, points to green area and represents that air pressure is low, it should be noted that usage amount, points to red area and then prohibits the use of, and
Tonifying Qi or replacing are carried out to built-in steel cylinder in time.
The beneficial effects of the utility model are：Accurate controllable, the simulation low pressure of pressure can be achieved to verify SF6 gas density is
Relay, and energy automatic inflating device, efficiency are higher, and safe and reliable, measurement result is more accurate, can be prevented effectively from by misoperation
Caused device damage, while avoiding closely operating personnel's suction SF6 gases.
Brief description of the drawings
The utility model is further described below in conjunction with the accompanying drawings.
Fig. 1 is structure principle chart of the present utility model.
Fig. 2 is main structure diagram of the present utility model.
Fig. 3 is test job schematic diagram of the present utility model.
In figure, 1 it is built-in SF6 steel cylinders, 2 is built-in steel cylinder pressure gauge, 3 is automatically controlled test valve, 4 is electric controlled gas-compensation valve
Door, 5 be gas filling mouth, 6 be tonifying Qi and test valve high-speed controller, 7 be built-in thermal printer, 8 be numerical control bus, 9 be survey
Examination mouth, 10 be temperature sensor, 11 be electric control exhaust valve, 12 be digital analog converter, 13 be touch display screen, 14 be microprocessor
Device MCU, 15 be communication serial port, 16 be drain tap high-speed controller, 17 be exhaust nozzle, 18 be SF6 gas density is relay, 19
It is built-in SF6 pipelines for gas pressure sensor, 20,21 be p-wire, 22 be relay action signal input port, 23 is electricity
Source module, 24 be power switch, 25 be relay current input port, 26 be AC charging port, 27 be SF6 special hoses.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.As shown in figure 1, the embodiment includes SF6 gas passages
Unit and gas pressure intelligent control unit.SF6 gas passages unit includes built-in SF6 steel cylinders 1, built-in steel cylinder pressure gauge 2, electricity
Control test valve 3, electric controlled gas-compensation valve 4, gas filling mouth 5, test nipple 9, electric control exhaust valve 11, electric control exhaust mouth 17, SF6 passages
20.Gas filling mouth 5 and test nipple 9 are connected by two SF6 special hoses 27 with tested SF6 density monitors 18 respectively, for mending
Gas and test.Test is discharged SF6 gases in TCH test channel by electric control exhaust mouth 17 after completing.Gas pressure intelligent control
Unit includes test and tonifying Qi valve high-speed controller 6, microprocessor 14, touch display screen 13, temperature sensor 10, air bleeding valve
Door high-speed controller 11, built-in thermal printer 7, communication serial port 15, numerical control bus 8, gas pressure sensor 19, relay are moved
Make signal input port 22 (alarm relay signal and block signal), power module 23, power switch 24, relay current defeated
Entrance 25（In verification power supply is provided for relay）, AC charging port 26.Power module 23 is batteries, is package unit
Power supply is provided.Relay action signal input port 22 and relay current signal input 25 are by p-wire 21 with being tested
SF6 density monitors 18 are connected, and realize the data interaction with tested SF6 density monitors 18.Micro-processor MCV is analyzed and handled
Come from the data of temperature sensor 10, gas pressure sensor 19 and tested density monitor 18, and can be according to data
Result issues actuating signal to test and tonifying Qi valve high-speed controller 6 and drain tap high-speed controller 11, and then controls
The automatically controlled test valve 3 of system, electric controlled gas-compensation valve 4 and electric control exhaust valve.Test data can be aobvious in real time by touch display screen 13
Show, it is possible to which result is printed by built-in thermal printer 7.
As shown in Fig. 2 the utility model pressure controllable type SF6 air gauge stimulation testers front view structure includes built-in steel cylinder
Pressure gauge 2, electric controlled gas-compensation valve 4, automatically controlled test valve 3, gas filling mouth 5, built-in thermal printer 7, test nipple 9, touch display
Screen 13, communication serial port 15, electric control exhaust mouth 17, busy relay actuating signal input port 22, power switch 24, relay electricity
Flow signal input 25 and AC charging port 26.
As shown in figure 3, SF6 passages A is one section of gas passage of GIS combined electric apparatus bodies, pass through charging and discharging valve B
It is connected with SF6 gas density is relay, is gas passage C, channel C between the air chamber F of valve B and SF6 gas density is relay
It is connected by valve and air supply passage D with the gas filling mouth of pressure controllable type SF6 air gauge stimulation testers, passage D is that SF6 is special
Flexible pipe.In test process, SF6 gas density is relay（Air density meter）Air chamber F pass through TCH test channel E and pressure controllable type
The test nipple of SF6 air gauge stimulation testers is connected, and passage E is equally SF6 special hoses with passage D.
The utility model utilizes pressure balance principle, and electric control valve controls the air pressure inside of TCH test channel, and passes through digital-to-analogue
Calculate, be converted into the standard pressure under certain temperature, show real time value on touch display screen curtain, carry out gas density relay
Device signal imitation is tested, and its specific measuring method is comprised the following steps：
S1. charging and discharging valve B is first opened before, and pressure controllable type SF6 air gauges stimulation tester is passed through into test
Passage E is connected with SF6 gas density is relay, now A, C, E, F UNICOM, and air pressure is consistent.Channel C and air chamber F moment phases
It is logical.
S2. charging and discharging valve B is tightened, now A is interrupted with C, E, F, and C, E, F are still connected, and C, E, F air pressure are identical.
S3., two internal definite values of pressure controllable type SF6 air gauge stimulation testers are set by touch display screen, respectively
For alarm pressure value and locking pressure value.If Micro-processor MCV judges channel C（With air chamber F）Interior pressure is higher than setting
Gas alarm signal pressure force value, then send opening operation order to electric control exhaust valve 11, and now the gas row in C, E, F is outside
Boundary, when the pressure value in channel C is equal to or slightly lower than the alarm pressure value that stimulation tester is set, microprocessor is to automatically controlled row
Air valve 11 sends closing motion order, and E is no longer outwardly vented, channel C（With air chamber F）Pressure be density meter alarm pressure
Power, now density meter hair alarm signal, and pressure controllable type SF6 gas density is relay simulation test is uploaded to by p-wire
Instrument.Continue to test by touch display screen selection, electric control exhaust valve 11 will be again turned on, when the pressure value in channel C is equal to
Or slightly below stimulation tester setting locking pressure value when, electric control exhaust valve 11 receives microprocessor shutdown command, close
Degree table will send block signal, and pressure controllable type SF6 gas density is relay stimulation tester is uploaded to by p-wire.
At work, the pressure of SF6 gas density is relay and pressure controllable type SF6 gas density is relay stimulation tester
Power is consistent all the time, and stimulation tester is by air supply passage D and valve and channel C UNICOM, when microprocessor is judged in C, E, F
When pressure is less than authorized pressure, control electric controlled gas-compensation valve may be selected and opens, gas is flowed from SF6 steel cylinders by air supply passage D
It is that GIS device is inflated in time to GIS air chambers.
Claims (4)
1. a kind of pressure controllable type SF6 gas density is relay signal stimulation tester, it is characterised in that：Include SF6 gases
Channel unit and gas pressure control unit；
The SF6 gas passages unit has：
Built-in SF6 steel cylinders（1）：Be stored with qualified SF6 gases, to carry out tonifying Qi to the not enough GIS device of air pressure；
Built-in steel cylinder pressure gauge（2）：Connected with built-in SF6 steel cylinders, to show built-in cyclinder gas pressure；
Air supply passage：Include tonifying Qi pipeline, the electric controlled gas-compensation valve on tonifying Qi pipeline of the built-in SF6 steel cylinders of connection（4）
And gas filling mouth（5）, the gas filling mouth pass through SF6 special hoses connect SF6 gas density is relay（18）Attached gas supplementing opening；
TCH test channel：Include test pipeline, the automatically controlled test valve on test pipeline（3）With test valve（9）, it is described
Test valve and the attached test mouth of SF6 gas density is relay is connected by SF6 special hoses；
Exhaust passage：Include the discharge duct of connection test pipeline, the electric control exhaust valve on discharge duct（11）With
Exhaust nozzle（17）；
The gas pressure control unit includes：
Sensor：Include temperature sensor and gas pressure sensor, it is placed in test pipeline, to monitoring in real time
Pipeline internal temperature and air pressure are tested, and temperature and air pressure Value Data are uploaded to Micro-processor MCV；
Touch display screen：To input alarm pressure value and locking pressure value and for the reality of experimental data to Micro-processor MCV
When show；
Controller：Including drain tap high-speed controller and tonifying Qi and test valve high-speed controller, both pass through micro- place respectively
Device MCU down order is managed to control electric control exhaust valve, electric controlled gas-compensation and automatically controlled test valve event；
Micro-processor MCV：The Micro-processor MCV control electric control exhaust valve is vented to simulate low pressure, the microprocessor
MCU receives the alarm signal and block signal of SF6 gas density is relay by outside p-wire, close to verify SF6 gases
Whether whether degree relay Normal Alarm and can be equal to or less than when air pressure is equal to or less than alarm pressure value in pressure value
Normal control SF6 electric switch lockings during locking pressure value.
2. pressure controllable type SF6 gas density is relay signal stimulation tester according to claim 1, it is characterised in that：
The built-in thermal printer of connection Micro-processor MCV is additionally provided with, the printing that the built-in thermal printer is used for test data is defeated
Go out.
3. pressure controllable type SF6 gas density is relay signal stimulation tester according to claim 1, it is characterised in that：
The built-in manometric dial of steel cylinder is divided into red, green, Bai Sanse, and pointer points to white portion and represents that pressure is normal, points to
Green area represents that air pressure is low, it should be noted that usage amount, points to red area and then prohibits the use of, and built-in steel cylinder is mended in time
Gas or replacing.
4. pressure controllable type SF6 gas density is relay signal stimulation tester according to claim 1, it is characterised in that：
The power module of power supply can be provided by being additionally provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621425153.1U CN206450793U (en) | 2016-12-23 | 2016-12-23 | A kind of pressure controllable type SF6 gas density is relay signal stimulation tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621425153.1U CN206450793U (en) | 2016-12-23 | 2016-12-23 | A kind of pressure controllable type SF6 gas density is relay signal stimulation tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206450793U true CN206450793U (en) | 2017-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621425153.1U Expired - Fee Related CN206450793U (en) | 2016-12-23 | 2016-12-23 | A kind of pressure controllable type SF6 gas density is relay signal stimulation tester |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772008A (en) * | 2016-12-23 | 2017-05-31 | 国网山东省电力公司菏泽供电公司 | A kind of pressure controllable type SF6 gas density is relay signal stimulation tester |
| CN110426313A (en) * | 2019-09-04 | 2019-11-08 | 上海乐研电气有限公司 | A kind of gas density relay and monitoring system with line diagnosis function |
| CN110426314A (en) * | 2019-09-04 | 2019-11-08 | 上海乐研电气有限公司 | On-line sampling check-up gas density electrical relay with defencive function |
| CN110444442A (en) * | 2019-09-04 | 2019-11-12 | 上海乐研电气有限公司 | A kind of teletransmission gas density relay system and its method of calibration |
| CN110456266A (en) * | 2019-09-04 | 2019-11-15 | 上海乐研电气有限公司 | Electrical system and its method of calibration with on-line sampling verifying function |
-
2016
- 2016-12-23 CN CN201621425153.1U patent/CN206450793U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772008A (en) * | 2016-12-23 | 2017-05-31 | 国网山东省电力公司菏泽供电公司 | A kind of pressure controllable type SF6 gas density is relay signal stimulation tester |
| CN106772008B (en) * | 2016-12-23 | 2023-05-16 | 国网山东省电力公司菏泽供电公司 | Pressure-controllable SF6 gas density relay signal simulation tester |
| CN110426313A (en) * | 2019-09-04 | 2019-11-08 | 上海乐研电气有限公司 | A kind of gas density relay and monitoring system with line diagnosis function |
| CN110426314A (en) * | 2019-09-04 | 2019-11-08 | 上海乐研电气有限公司 | On-line sampling check-up gas density electrical relay with defencive function |
| CN110444442A (en) * | 2019-09-04 | 2019-11-12 | 上海乐研电气有限公司 | A kind of teletransmission gas density relay system and its method of calibration |
| CN110456266A (en) * | 2019-09-04 | 2019-11-15 | 上海乐研电气有限公司 | Electrical system and its method of calibration with on-line sampling verifying function |
| CN110444442B (en) * | 2019-09-04 | 2023-09-26 | 上海乐研电气有限公司 | Remote gas density relay system and verification method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20170829 Termination date: 20191223 |