CN206161809U - Light gas protection test appearance of transformer - Google Patents
Light gas protection test appearance of transformer Download PDFInfo
- Publication number
- CN206161809U CN206161809U CN201621232000.5U CN201621232000U CN206161809U CN 206161809 U CN206161809 U CN 206161809U CN 201621232000 U CN201621232000 U CN 201621232000U CN 206161809 U CN206161809 U CN 206161809U
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- CN
- China
- Prior art keywords
- box body
- air pump
- fixed
- closed box
- protection test
- Prior art date
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- 229920006351 engineering plastic Polymers 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 239000011324 bead Substances 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 33
- 210000003296 saliva Anatomy 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000015927 pasta Nutrition 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model relates to a light gas protection test appearance of transformer, its characterized in that: by the closed box body, locate air pump, power seat in the closed box body, be fixed in battery in the power seat, be fixed in switch on the closed box body lateral wall, be fixed in the gas outlet department of air pump the check valve, be connected with the check valve and fix and constitute by the gas tube of drawing forth in the closed box body, air pump, battery and switch form closed -loop, the closed box body is by box body and upper cover utilize bolted connection to form down, the four corners of box body and upper cover sets up the bolt hole respectively down, the last border of box body is equipped with annular bead down, the lower border of upper cover corresponds annular bead and is equipped with ring type seal. Its is small, portable, convenient operation, long service life.
Description
Technical field
The utility model is related to a kind of light transformer protection test instrument, it is adaptable to survey in the scene of Buchholz relay
Examination, belongs to intelligent substation technical field.
Background technology
Protection is the main protection of power transformer interior fault, to transformer turn-to-turn and layer short circuit, iron core failure, sleeve pipe
Internal fault, winding inside broken string and the failure such as insulation degradation and pasta decline can sensitive actions.Protection is generally divided into
Light gas and the class of grave gas two.Wherein, light gas refers to that inside transformer is overheated, or shelf depreciation, makes in transformer oil oil temperature
Rise, produce certain gas, come together in Buchholz relay, reached a certain amount of rear shake-up Buchholz relay, send signal；And
Grave gas refer to that transformer is interior occurs that after serious short circuit, transformer oil will be produced impact, makes a stand oil stream rush at gas relay
The plate washer of device, action is in tripping operation.
At present, light gas protecting test transmits its action mainly based on artificial using artificial blowing method.Manually
Test Jing and often saliva or other impurities are blown into into grease chamber, and easily cause transformer oil and flow back in human body, human body is produced
Raw harm.And for 220 kilovolts and the transformer of the above, capacity is big, and fuel tank height is high, and manually light gas protecting cannot be entered
Row test.In order to solve the above problems, the U of CN 203101593 disclose a kind of " light transformer gas test instrument ", the test instrument
Including casing, the inflator pump with gas tube being connected with dc source is provided with described casing, dc source and fill
Insulating panel is provided with above air pump, the pressure gauge being connected with inflator pump is provided with insulating panel, set on insulating panel
It is equipped with power switch, power supply indicator and the voltage indicator panel being connected with dc source, described dc source is with filling
The charge power supply of electric connection, is provided with the charging indicator light being connected with charge power supply on insulating panel.The test instrument instead of
Mouth is blown to gas, and the saliva for having prevented people mixes transformer oil with when blowing, it is ensured that the degree of purity of transformer oil,
Outlet pressure is big, makes simulated failure test disposably success, saves manpower.But there are the following problems for it：1st, actually used
In, pressure gauge and its dependency structure are arranged and substantially belong to redundancy setting, as long as because light gas protecting test test gas relay
Reliably whether, the signal output of Buchholz relay can be shown that whether action is reliable for device action, and Buchholz relay outside
Visual windows can also be clearly apparent lubricating cup whereabouts, so pressure need not be monitored, while the setting of pressure gauge and its dependency structure
Certain space is occupied, makes box volume larger, it is not portable；2nd, after inflator pump inflation is finished, transformer oil pasta rises,
There is oil return phenomenon in gas tube, and easily inflator pump is caused damage, and has a strong impact on inflator pump service life；3rd, casing is not closed,
Still need to unpack when using, affect practical operation.
The content of the invention
The purpose of this utility model is to provide for a kind of above-mentioned asking for solving existing light transformer gas test instrument presence
The light transformer protection test instrument of topic, small volume is easy to carry, easy to operate, long service life.
The technical solution of the utility model is：
A kind of light transformer protection test instrument, it is characterised in that：By closed box body, in closed box body
Air pump, power socket, the battery being fixed in power socket, the power switch being fixed on closed box side wall, it is fixed on air pump
Gas outlet at non-return valve and non-return valve be connected and by closed box body draw gas tube constitute, the air pump,
Battery and power switch form closed-loop path, and the closed box body is formed by lower box body and upper lid using bolt connection, described
The corner of lower box body and upper lid is respectively provided with bolt hole, and the upper edge of the lower box body is provided with annular ridge, under the upper lid
Edge correspondence annular ridge is provided with O-ring seal.
The bottom position of above-mentioned light transformer protection test instrument, the lower box body correspondence air pump and power socket is utilized
Screw is fixed with base, and the air pump and power socket are fixedly connected with base.
Above-mentioned light transformer protection test instrument, the side of the lower box body is provided with the gap of correspondence gas tube, institute
State gas tube and be fixed with sheath through the position of gap.
Above-mentioned light transformer protection test instrument, the gas tube is in the subzero 20 DEG C low temperature sebific ducts not being hardened.
Above-mentioned light transformer protection test instrument, the closed box body be ABS engineering plastic magazines, long 105mm, width
75mm, high 45mm.
Above-mentioned light transformer protection test instrument, the base is tabular, and surface hollow-out, in order to fixed air pump
And power socket.
The beneficial effects of the utility model are：
1st, produce gases at high pressure using air pump to blow into Buchholz relay, the reliable in action of final detection Buchholz relay
Property, it is to avoid while saliva or other impurities are blown into into grease chamber, prevent transformer oil from flowing back using non-return valve, so as to extend
The service life of air pump, the drawbacks of tranformer protection regular inspection process has obtained sufficient application, solved man-made chamber, it is ensured that
Personal equipment safety.
2nd, simple structure, building block is few, and compact is lightweight, is easy to carry, beneficial to maintaining.
3rd, closed box body structure is convenient operates, and is also prevented from into water, strong to tray interior part protectiveness, round-the-clock can make
With.
4th, 1,200,000, maintenance once needs fund 20,000 or so, annual Lateral Pressure Test in Jinzhou Area to a current 20MVA transformers cost
Averagely need repairing 5 times, while 2800 yuan every year on average of the field maintenance person for producing and vehicle expense, using this test instrument examination
Test, can promptly and accurately test protection, it is to avoid damage transformer, 10.28 ten thousand yuan of expense can be saved every year.Ensure that simultaneously
Transformer safety is run and power supply reliability, it is ensured that resident and factories and miness safety utilization of electric power, it is ensured that personal safety, with significant society
Benefit.
Description of the drawings
Fig. 1 is internal structure schematic diagram of the present utility model；
Fig. 2 is the structural representation of upper lid of the present utility model.
In figure：1. lower box body, 2. base, 3. bolt hole, 4. annular ridge, 5. air pump, 6. power socket, 7. battery, 8. electric
Source switch, 9. sheath, 10. gas tube, 11. non-return valves, lid, 13. O-ring seals, 14. bolts on 12..
Specific embodiment
As illustrated, the light transformer protection test instrument, by closed box body, the air pump in closed box body
5th, power socket 6, be fixed in power socket 6 battery 7, be fixed on closed box side wall power switch 8, be fixed on air pump
Non-return valve 11 and non-return valve 11 at 5 gas outlet is connected and is made up of the gas tube 10 drawn in closed box body.Its
In, the air pump 5, battery 7 and power switch 8 form closed-loop path.The closed box body is utilized by lower box body 1 and upper lid 12
Bolt 14 is formed by connecting, and the corner of the lower box body 1 and upper lid 12 is respectively provided with bolt hole 3, and the upper edge of the lower box body 1 sets
The lower edge correspondence annular ridge 4 for having annular ridge 4, the upper lid 12 is provided with O-ring seal 13.The corresponding gas of the lower box body 1
The bottom position of pump 5 and power socket 6 is fixed with base 2 using screw, and the air pump 5 and power socket 6 are fixed with base 2 and connected
Connect, the base 2 is tabular, and surface hollow-out, in order to fixed air pump 5 and power socket 6.The side of the lower box body 1 is provided with
The gap of correspondence gas tube 10, the gas tube 10 is fixed with sheath 9 through the position of gap.
In the present embodiment, the gas tube 10 is, in the subzero 20 DEG C low temperature sebific ducts not being hardened, can to keep gas tube 10
With the sealing of Buchholz relay gas port.The closed box body be ABS engineering plastic magazines, long 105mm, width 75mm, high 45mm, weight
For 300 grams or so.Two are arranged in power socket 6 and saves AA batteries, without the need for external power supply.Gases at high pressure are produced using air pump 5
(90KAP), completing light gas test only needs 30 seconds.The utility model can be carried with, and also can be hung to safety belt, and not
Affect action.
The utility model operation is extremely simple, only gas tube 10 need to be accessed into Buchholz relay pore during test, opens electricity
Source switch 8.
Claims (6)
1. a kind of light transformer protection test instrument, it is characterised in that：By closed box body, the gas in closed box body
Pump, power socket, the battery being fixed in power socket, the power switch being fixed on closed box side wall, it is fixed on air pump
Non-return valve and non-return valve at gas outlet is connected and is made up of the gas tube drawn in closed box body, the air pump, electricity
Pond and power switch form closed-loop path, and the closed box body is formed by lower box body and upper lid using bolt connection, it is described under
The corner of box body and upper lid is respectively provided with bolt hole, and the upper edge of the lower box body is provided with annular ridge, the upper lid it is following
O-ring seal is provided with along correspondence annular ridge.
2. light transformer protection test instrument according to claim 1, it is characterised in that：The lower box body correspondence air pump
Base is fixed with using screw with the bottom position of power socket, the air pump and power socket are fixedly connected with base.
3. light transformer protection test instrument according to claim 1, it is characterised in that：The side of the lower box body sets
There is the gap of corresponding gas tube, the gas tube is fixed with sheath through the position of gap.
4. light transformer protection test instrument according to claim 1, it is characterised in that：The gas tube is subzero
20 DEG C of low temperature sebific ducts not being hardened.
5. light transformer protection test instrument according to claim 1, it is characterised in that：The closed box body is
ABS engineering plastic magazines, long 105mm, width 75mm, high 45mm.
6. light transformer protection test instrument according to claim 2, it is characterised in that：The base is tabular, and
Surface hollow-out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621232000.5U CN206161809U (en) | 2016-11-15 | 2016-11-15 | Light gas protection test appearance of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621232000.5U CN206161809U (en) | 2016-11-15 | 2016-11-15 | Light gas protection test appearance of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206161809U true CN206161809U (en) | 2017-05-10 |
Family
ID=58660022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621232000.5U Active CN206161809U (en) | 2016-11-15 | 2016-11-15 | Light gas protection test appearance of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206161809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965454A (en) * | 2020-08-14 | 2020-11-20 | 国网安徽省电力有限公司电力科学研究院 | Transformer light gas protection tester |
-
2016
- 2016-11-15 CN CN201621232000.5U patent/CN206161809U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965454A (en) * | 2020-08-14 | 2020-11-20 | 国网安徽省电力有限公司电力科学研究院 | Transformer light gas protection tester |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |