CN206862559U - A kind of SF6 density monitors temperature-compensating calibration equipment - Google Patents
A kind of SF6 density monitors temperature-compensating calibration equipment Download PDFInfo
- Publication number
- CN206862559U CN206862559U CN201720609301.3U CN201720609301U CN206862559U CN 206862559 U CN206862559 U CN 206862559U CN 201720609301 U CN201720609301 U CN 201720609301U CN 206862559 U CN206862559 U CN 206862559U
- Authority
- CN
- China
- Prior art keywords
- temperature
- density
- density monitors
- breather line
- monitors
- 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.)
- Active
Links
Abstract
It the utility model is related to electrical equipment verification field, specially a kind of SF6 density monitors temperature-compensating calibration equipment, including temperature-controlling cabinet and correction verification module, the correction verification module includes SF6 gas work simulations storehouse, standard SF6 density monitors, normal pressures table, the SF6 gases work simulation the top of the warehouse is provided with first, second and the 3rd steam vent, charge valve is provided among the SF6 gases work simulation storehouse front, the first row stomata is connected through the first breather line with standard SF6 density monitors, the second row stomata is connected through the second breather line with normal pressures table, 3rd steam vent is connected with the 3rd breather line, the free end of 3rd breather line is verified SF6 density monitors connection end, first and the 3rd is provided with ball valve on breather line.The utility model can accurately verify density monitor temperature-compensating performance, fill up the blank in domestic density monitor temperature-compensating performance verification field.
Description
Technical field
Electrical equipment calibration technology field is the utility model is related to, specially a kind of SF6 density monitors temperature-compensating school
Experiment device.
Background technology
Insulation and arc extinction performance due to SF6 breakers are heavily dependent on the purity and density of SF6 gases, currently
Monitoring to SF6 circuit breaker gas density and the protection to SF6 breakers rely primarily on SF6 density monitors, that is, pass through SF6
Whether the pressure value of density monitor meets job requirement come the gas density reflected in SF6 breakers, if needs send announcement
Alert, block signal.But in real work, the pressure value of SF6 density monitors is except the shadow by gas density in SF6 breakers
Outside ringing, also influenceed by external work environment temperature, so in order to ensure that the accuracy of SF6 density monitor pressure values just needs
Temperature-compensating is carried out to SF6 density monitors.
Temperature compensation means is all come with SF6 density monitors all at present, but all manufacturers all do not carry
For the temperature-compensating calibration equipment of SF6 density monitors, though also there are SF6 equipment deflation check addition, SF6 equipment inflation school now
Test method and verified by density parity check instrument, but the temperature-compensating performance that the above method all can not be to SF6 density monitors
Verified, thus currently can only a kind of method may determine that the temperature-compensating performances of SF6 density monitors, be exactly by SF6
Its own temperature sensor automatic Acquisition Environment temperature for carrying of density monitor, then when the environment temperature is converted into 20 DEG C
SF6 gas pressure values, the locking for then receiving SF6 density monitors, the locking of alarm pressure value and actual pressure table, accuse
Alert pressure value is compared, and whether verification unanimously judges whether the temperature-compensating performance of SF6 density monitors is qualified.It is but this
The method of calibration degree of accuracy is relatively low, in actual use, is once repeatedly led because the temperature-compensating of SF6 density monitors is unqualified
Cause temperature change excessive, and then trigger the pressure oscillation of SF6 density monitors excessive, cause hair alarm, block signal by mistake, even
The abnormal conditions that morning alarm repeatedly occurs in same SF6 breaker, noon involution, afternoon alert again.Such SF6 per treatment
The SF6 circuit breaker failures that density monitor triggers, many staff are all needed to live, but actually and be not SF6 breakers
The real failure of interior gas leakage etc, therefore waste many human resources and time cost.What is more directly triggers SF6
The pressure oscillation locking failure of breaker, the power supply of upper level need to be cut off by handling such failure, therefore can cause larger economy
Loss and social influence.As can be seen here, a kind of device that can accurately verify SF6 density monitor temperature-compensating performances is developed just
Seem particularly necessary, with regard to the SF6 of temperature-compensating performance acceptance or rejection can be recognized accurately before SF6 breakers are not mounted to
Density monitor, it is truly realized and prevents trouble before it happens.
Utility model content
For it is above-mentioned the problem of, the purpose of this utility model is to provide a kind of SF6 density monitors temperature-compensating verification dress
Put, by simulating the actual working environment temperature of SF6 density monitors, by the verified SF6 density monitors at same temperature
Pressure value and the pressure value of standard SF6 density monitors contrasted, so as to be accurately judged to verified SF6 density relay
Whether the temperature-compensating performance of device is qualified.The utility model is simple to operate, accuracy rate is high, and it is close effectively to have filled up domestic verification SF6
Spend the blank of relay temperature-compensating performance technical field.
The technical solution adopted in the utility model is：
A kind of SF6 density monitors temperature-compensating calibration equipment, it is characterised in that：Including temperature-controlling cabinet, in the temperature-controlling cabinet
Correction verification module is provided with, the temperature-controlling cabinet front is provided with cabinet door, observation window is provided with the cabinet door；The correction verification module bag
SF6 gas work simulations storehouse, standard SF6 density monitors, normal pressures table are included, the SF6 gases work simulation the top of the warehouse is set
First row stomata a, second row stomata b, the 3rd steam vent c are equipped with, is provided with and fills among the SF6 gases work simulation storehouse front
Air valve, the first row stomata a is connected through the first breather line with standard SF6 density monitors, on first breather line
The first ball valve is provided with, the second row stomata b is connected through the second breather line with normal pressures table, the 3rd steam vent c
The 3rd breather line is connected with, the free end of the 3rd breather line is verified SF6 density monitors connection end, described
The second ball valve is provided with three breather lines.
During verification, verified SF6 density monitors are arranged on the 3rd breather line, then verify personnel by SF6 gases
It is filled with SF6 gas work simulations storehouse, verification personnel are by checking that the pressure value of normal pressures table can determine whether current SF6 gases
The quantity of work simulation storehouse institute inflatable body, after the requirement for reaching verification, that is, stop inflation.At this moment the first ball valve and the second ball are opened
Valve, SF6 gases can enter standard SF6 density monitors, verified SF6 density monitors, and following verification personnel shut cabinet door
Test temperature is set to temperature-controlling cabinet afterwards, the temperature-controlling cabinet internal temperature adjustable extent is 0 DEG C -50 DEG C, verifies personnel setting temperature
After degree, when temperature-controlling cabinet internal temperature reaches set temperature, by observation window record standard SF6 density monitors and by school
The pressure value shown by SF6 density monitors is tested, eventually through both pressure values at a temperature of more multiple same settings
To judge whether the temperature-compensating performance of verified SF6 density monitors is qualified.
Further, the observation window is full transparent glass, its face standard SF6 density monitors, normal pressures table,
Verified SF6 density monitors.
Verification personnel check standard SF6 density monitors, normal pressures table, verified SF6 density relay by observation window
The pressure value of device.
Further, the SF6 gases work simulation storehouse is tetragonal body structure, its making material and conventional SF6 breakers
Sheathing material it is close.
The gas SF6 that SF6 density monitors are monitored during by work is in SF6 breakers, is broken using with conventional SF6
Environment when SF6 gas work simulations storehouse is to verify is made as close possible to real work ring in sheathing material similar in the device of road
Border so that check results are more accurate.
In summary, by adopting the above-described technical solution, the beneficial effects of the utility model are：
1st, a kind of SF6 density monitors temperature-compensating calibration equipment of the utility model, by simulating SF6 density monitors
Actual working environment temperature, verify whether the temperature-compensating performance of SF6 density monitors is qualified, at present SF6 verifications on the market
Instrument can only simulate the environment temperature of density monitor internal gas and outside environment temperature can not be simulated, and causing can not be to SF6
The temperature compensation performance of density monitor is verified, thus can not find the underproof SF6 density monitors of temperature compensation performance in time, this
The appearance of utility model efficiently solves this problem while has filled up the blank of the technical field.
50 SF6 density monitors are verified using the utility model through power department, it is found that wherein 15 temperature deviations surpass
0.05Mpa underproof SF6 density monitors are crossed, requires that producer changes in time, has retrieved 75000 yuan of economic loss, together
When avoid be installed to equipment after the equipment faults such as serious mistaking signal occur, save 30 people/time maintenance resource, and
Avoid 15 times and the unplanned power outage of the above, calculated by every line load 30000kVA, each power off time 8 is small
When, often 0.5 yuan of calculating of degree electricity, loss is 30000kVA8h0.515=1800000 yuan caused by 15 unplanned power failures,
Electric power enterprise eliminates safe hidden trouble the utility model, to reduce economic loss etc. role suitable helping as can be seen here
Significantly.
2nd, a kind of SF6 density monitors temperature-compensating calibration equipment of the utility model, design science is reasonable, it is simple in construction,
Securely and reliably, easy to use, required equipment, material can be bought by market conven-tional channels and cost is relatively low, need not during making
Complicated technology, therefore the prospect with batch production and large-scale promotion.
Brief description of the drawings
, below will be real to implementing in order to illustrate more clearly of example of the present utility model or technical scheme of the prior art
Accompanying drawing required in example or description of the prior art, which is done, simply to be introduced, it is clear that drawings in the following description are only this practicality
Some new examples, to those skilled in the art, can also be according to this on the premise of creativeness is not paid
A little accompanying drawings obtain other accompanying drawings.
A kind of SF6 density monitors temperature-compensating calibration equipment structure charts of Fig. 1；
A kind of SF6 density monitors temperature-compensating calibration equipment operating diagrams of Fig. 2.
In accompanying drawing 1 and Fig. 2, a- first rows stomata, b- second rows stomata, the steam vents of c- the 3rd.
Embodiment
Below in conjunction with the accompanying drawing in the example of the utility model, the technical scheme in the embodiment of the utility model is carried out clear
Chu, it is fully described by, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole realities
Apply example.Based on the embodiment in the utility model, those of ordinary skill in the art are not on the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Embodiment：
As shown in Fig. 1, a kind of SF6 density monitors temperature-compensating calibration equipment, including temperature-controlling cabinet, in the temperature-controlling cabinet
Correction verification module is provided with, the temperature-controlling cabinet front is provided with cabinet door, observation window is provided with the cabinet door；
The correction verification module includes SF6 gas work simulations storehouse, standard SF6 density monitors, normal pressures table, described
SF6 gas work simulation the top of the warehouse is provided with first row stomata a, second row stomata b, the 3rd steam vent c, the SF6 gases work
Make to be provided with charge valve among the front of simulation storehouse, the first row stomata a is through the first breather line and standard SF6 density monitors
Connect, be provided with the first ball valve on first breather line, the second row stomata b is through the second breather line and normal pressures
Table connects, and the 3rd steam vent c is connected with the 3rd breather line, and the free end of the 3rd breather line is verified SF6
Density monitor connection end, the second ball valve is provided with the 3rd breather line.
Further, the observation window is full transparent glass, its face standard SF6 density monitors, normal pressures table,
Verified SF6 density monitors.
Further, the SF6 gases work simulation storehouse is tetragonal body structure, its making material and conventional SF6 breakers
Sheathing material it is close.
The course of work of the present utility model is as follows：As shown in Fig. 2 verification personnel install verified SF6 density monitors
On verified SF6 density monitors connection end, charge valve is then opened toward filling SF6 gases in SF6 gas work simulations storehouse, this
When the first ball valve and the second ball valve be closed, verification personnel are by checking that the pressure value of normal pressures table can determine whether to work as
The quantity of preceding SF6 gases work simulation storehouse institute inflatable body, stop inflation closing charge valve after reaching the requirement of verification, then school
Test personnel and open the first ball valve and the second ball valve, SF6 gases can enter standard SF6 density monitors, verified SF6 density relay
Device, then set the temperature needed for verification, the regulation of the temperature-controlling cabinet internal temperature to temperature-controlling cabinet after verification personnel closing cabinet door
Scope is 0 DEG C -50 DEG C.In the present embodiment, the amplitude of each temperature adjustment is ± 5 DEG C, treats that temperature-controlling cabinet internal temperature reaches set
During temperature, pressure of the verification personnel shown by by observation window record standard SF6 density monitors and verified SF6 density monitors
Force value, for example temperature-controlling cabinet internal temperature is first set as 0 DEG C, after temperature reaches, that is, record now standard SF6 density relay
Pressure value shown by device and verified SF6 density monitors, then to reset be 5 DEG C, 15 DEG C, 20 DEG C, 25 DEG C until 50 DEG C,
The temperature value set every time all records corresponding standard SF6 density monitors and verified SF6 density monitors after reaching
Pressure value, judge the temperature of verified SF6 density monitors eventually through both pressure values under more multiple design temperatures
Whether compensation performance is qualified, such as at a temperature of multiple same settings, pressure value and mark shown by verified SF6 density monitors
The pressure value of quasi- SF6 density monitors is basically identical, that is, the temperature-compensating performance for showing the verified SF6 density monitors is conjunction
Lattice, can normal mounting use, it is on the contrary then be unqualified.After having verified a SF6 density monitor, stop the power supply of temperature-controlling cabinet,
After temperature-controlling cabinet is stopped, cabinet door is opened, the first ball valve and the second ball valve are closed after in-cabinet temperature becomes normal temperature, then will
The SF6 density monitors for having completed verification are pulled down, and can then verify next SF6 density monitors.Above-mentioned temperature setting
It is from low to high, if in turn i.e. from high to low and feasible.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., utility model should be included in
Within protection domain.
Claims (3)
- A kind of 1. SF6 density monitors temperature-compensating calibration equipment, it is characterised in that：Including temperature-controlling cabinet, set in the temperature-controlling cabinet Correction verification module is equipped with, the temperature-controlling cabinet front is provided with cabinet door, observation window is provided with the cabinet door；The correction verification module includes SF6 gas work simulations storehouse, standard SF6 density monitors, normal pressures table, the SF6 gas Body running simulation the top of the warehouse is provided with first row stomata a, second row stomata b, the 3rd steam vent c, the SF6 gases work simulation Storehouse is provided with charge valve among front, and the first row stomata a is connected through the first breather line with standard SF6 density monitors, The first ball valve is provided with first breather line, the second row stomata b connects through the second breather line and normal pressures table Connect, the 3rd steam vent c is connected with the 3rd breather line, and the free end of the 3rd breather line is verified SF6 density Relay connection end, the second ball valve is provided with the 3rd breather line.
- A kind of 2. SF6 density monitors temperature-compensating calibration equipment according to claim 1, it is characterised in that：The sight It is full transparent glass to examine window, and it faces standard SF6 density monitors, normal pressures table, verified SF6 density monitors.
- A kind of 3. SF6 density monitors temperature-compensating calibration equipment according to claim 1, it is characterised in that：The SF6 Gas work simulation storehouse is tetragonal body structure, and its making material is consistent with the sheathing material of conventional SF6 breakers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720609301.3U CN206862559U (en) | 2017-05-27 | 2017-05-27 | A kind of SF6 density monitors temperature-compensating calibration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720609301.3U CN206862559U (en) | 2017-05-27 | 2017-05-27 | A kind of SF6 density monitors temperature-compensating calibration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206862559U true CN206862559U (en) | 2018-01-09 |
Family
ID=60825379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720609301.3U Active CN206862559U (en) | 2017-05-27 | 2017-05-27 | A kind of SF6 density monitors temperature-compensating calibration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206862559U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556925A (en) * | 2020-12-03 | 2021-03-26 | 西安近代化学研究所 | Performance testing device and method for pressure sensor for gunpowder vacuum stability test |
-
2017
- 2017-05-27 CN CN201720609301.3U patent/CN206862559U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556925A (en) * | 2020-12-03 | 2021-03-26 | 西安近代化学研究所 | Performance testing device and method for pressure sensor for gunpowder vacuum stability test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105203710B (en) | A kind of SF of high voltage electric equipment6Gas controlling device, method and system | |
| CN104135074B (en) | Based on the Ultra-high Voltage Substations device temperature monitoring alarm method of outlier detection | |
| CN202974976U (en) | System for detecting accuracy of SF6 on-line monitoring device | |
| WO2021218288A1 (en) | Online checking apparatus for gas density relay and online checking method thereof | |
| CN105471096A (en) | Micro-network intelligent monitoring system based on multiple heterogeneous information fusion technology | |
| CN102944645A (en) | SF6 online monitoring apparatus accuracy detection system and method thereof | |
| CN106015924A (en) | Multifunctional full-automatic gas charging device of SF6 equipment | |
| CN206862559U (en) | A kind of SF6 density monitors temperature-compensating calibration equipment | |
| CN110444442A (en) | A kind of teletransmission gas density relay system and its method of calibration | |
| CN207198255U (en) | A kind of power supply changeover device batch aging test device | |
| CN204422095U (en) | Switch cabinet contact and busbar tie point temperature rise on-Line Monitor Device and system | |
| CN207408018U (en) | A kind of cable intermediate joint temperature easy to install based on temperature difference method rises on-Line Monitor Device | |
| CN110411894B (en) | Gas density monitoring system | |
| CN104932592A (en) | Outdoor terminal box with solar dehumidifying and cooling functions | |
| CN208140851U (en) | A kind of semiconductor element accelerated ageing test device | |
| CN209233491U (en) | A kind of photovoltaic plant management system of family grade | |
| CN110531811A (en) | A kind of electrical equipment gas tonifying Qi control device based on edge calculations | |
| CN110429005A (en) | A kind of gas density relay and monitoring system of on-line monitoring gas micro water content | |
| Wang et al. | Research on reliability enhancement testing for single-phase smart meter | |
| CN205039548U (en) | Low -voltage reactive power compensation device | |
| CN206671433U (en) | A kind of distribution terminal automatization simulation test device | |
| CN209133631U (en) | Accurate screening lithium battery self discharge device | |
| CN204103305U (en) | Electric power JP cabinet temperature control heat abstractor | |
| CN110441194A (en) | A kind of gas density relay of self-test contact contact resistance | |
| CN206789896U (en) | A kind of combined intelligent low-voltage distribution cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |