CN103956251B - Auxiliary oil feed device of oil-immersed current transformer - Google Patents
Auxiliary oil feed device of oil-immersed current transformer Download PDFInfo
- Publication number
- CN103956251B CN103956251B CN201410203974.XA CN201410203974A CN103956251B CN 103956251 B CN103956251 B CN 103956251B CN 201410203974 A CN201410203974 A CN 201410203974A CN 103956251 B CN103956251 B CN 103956251B
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- Prior art keywords
- oil
- leading screw
- column
- current transformer
- screw rod
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- 230000003028 elevating effect Effects 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000000518 rheometry Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses an auxiliary oil feed device of an oil-immersed current transformer, which comprises a support mechanism and a lifting mechanism, wherein the support mechanism comprises two uprights and two cross rods connected with the upper ends of the uprights respectively; the opposite ends of the two cross rods are fixedly connected with a disc; a center hole of the disc is an internal threaded hole; the lifting mechanism comprises a screw rod matched with the internal threaded hole of the disc; the screw rod in parallel to the upright; a handle for driving the screw rod to rotate is arranged at the top end of the screw rod; a cross beam is connected with the bottom end of the screw rod; and the two ends of the cross beam are connected with bolts parallel to the screw rod respectively.The device is applicable to fixing metal expanders of the current transformers in various dimensions, is light in weight, easy and simple to operate, and easy to assemble, and reduces power cut and transmission operation and field work risks after the device is applied.
Description
Technical field:
The present invention relates to a kind of oil-immersed current transformer assists recharging oil device.
Background technology:
At present, used in power system, the current transformer of 110kv, 220kv electric pressure is divided into sf6 or filling type,
Wherein filling type accounts for the overwhelming majority, belongs to common work to the maintenance of filling type current transformer, repairing.
Oil-immersed current transformer, using the all-sealed structure with expansion apparatuss, if drawn oil sample, should add equivalent in time
Transformer oil, if transformer overhaul, also should carry out strict vacuum oil to it.
After the completion of oiling, the metal expander of reflection transformer oil level, due to the impact of negative pressure and deadweight, is taking off oiling interface
When, bellow expander can shrink, and makes oil ejection.For avoiding this situation, now by the way of crane, to ripple
Expansion apparatuss carry out stablizing, but this mode usually needs the bus above transformer or adjacent spaces bridge line to be accompanied and stopped, greatly
Have impact on the production schedule, increased stop power transmission operation, bring field operation risk.
Content of the invention:
For overcoming the defect of prior art, it is an object of the invention to provide a kind of oil-immersed current transformer auxiliary repairing dress
Put it is adaptable to the metal expander of sizes current transformer firm, this installation weight is light and handy, easy and simple to handle, be easy to
Assembling, after applying this device, decreases and stops power transmission operation, reduce field operation risk.
The present invention solves technical problem and adopts the following technical scheme that
Oil-immersed current transformer assists recharging oil device, comprising:
Supporting mechanism and elevating mechanism；Described supporting mechanism includes two root posts and is connected to described column upper end
Two cross bars, the opposite end of two cross bars and a disk connect firmly, and the centre bore of described disk is internal thread hole；
Described elevating mechanism includes the leading screw with the internal thread hole cooperation of described disk, and described leading screw is parallel with described column,
The top of leading screw is provided with the handle driving leading screw to rotate；It is connected with crossbeam in the bottom of described leading screw, the two ends of described crossbeam are divided
It is not connected with the bolt parallel with leading screw.
The bottom of each described column is provided with the gap of the font of falling u.
The middle part of described column is provided with engraved structure to mitigate weight.
The spacing of described two root posts is adjustable, and concrete structure is: the tip-end-side of each described column is provided with the u font groove of level,
Described cross bar is embedded in described u font groove, is provided with elongated slot along its length in the top surface of cross bar, clamping screw Self-stabilised post
In top insertion u font groove and in embedded described elongated slot, cross bar is locked on column.
Compared with the prior art, beneficial effects of the present invention are embodied in:
1st, each part of this device adopts stainless steel to make, and can increase the usage cycles of device, the middle part of column is provided with
Engraved structure, to mitigate weight of equipment on the basis of proof strength.
2nd, the bottom of column is provided with the font of falling u gap, under this Special use environment, can be by gap by upright supports
On the channel-section steel or band steel of transformer pedestal, it is easy to find the strong point and make whole device consolidate.
3rd, the spacing of two columns adjustable it is adaptable to the transformer of different specification size, adopt separable dress between column and cross bar
Distribution structure, is easy to carry to job site.
4th, adopt disk and elevating screw to coordinate between two cross bars, can by leading screw institute uniform force be firmly transferred to cross bar and
On column, increase the steadiness of device, leading screw adopts handle to rotate, can be by single independent operation.
5th, in the prior art before using this device, the reconnaissance at criminal scene before work finds: it is hospital bus bar above rheology,
Highly it is about 10 meters, and adjacent equipment interval is powered it is contemplated that safety work distance is it is necessary to arrange crane to make after having a power failure
Industry.Because adjacent spaces are powered to high ferro, maintenance task can only arrange at dead of night, through the power transformation power failure operation of 4 hours,
The service work of 3 hours, the power transformation recovery operation of 3 hours, repairing work completes.After apparatus of the present invention, note
Oil work has shortened to 3 hours by 8.4 original hours.This new device combination mounted configuration is stable, can be by single
Independent operation.
6th, cost is greatlyd save using this device, as a example 2013, it is mutual that Chuzhou electric company completes oil-immersed current
Sensor repairing totally 4 times.If according to the way using in the past engineering truck cooperation to have a power failure, need at least 1 engineering truck, 3
Operating personnel, also needs a crane and commander, presses it is only necessary to 1 engineering truck, 3 operating personnels using after this device
800 yuan of one machine-team of crane, 400 yuan of one machine-team of engineering truck, 200 yuan of one day engineering funds of operating personnel calculate, and can save
(800+400) * 4=4800 unit.In addition, using after this new device, it is to avoid stop power transmission operation, according to switch operation people
Member three people, one calculating of engineering truck, (3*200+400) * 4=4000 can be saved.With road junction transformer station 110kv tri- Chu
As a example 512, its average current is about 220a, by 0.5/ degree of calculating of the electricity charge, the electricity saved by the application of this new device
Lose and be: [(8.4-3) * 110*1000*220*1.732*3600*0.5/3.6*1000000] * 4=113168.88.Total saving is taken
With: 4800+4000+113168.88=121968.88 unit.
Brief description:
Fig. 1 is the front view of this device；Fig. 2 be this device left view (in figure only illustrate column, cross bar, clamping screw and
Disk)；Fig. 3 is the side view of column；This device of Fig. 4 top view (in figure only illustrate column, cross bar, clamping screw and
Disk)；Fig. 5 is the use state schematic diagram of this device.
In figure label: 1 is column, 2 is cross bar, and 3 is disk, and 4 is leading screw, and 5 is handle, and 6 is crossbeam, and 7 is bolt,
8 is the font of falling u gap, and 9 is u font groove, and 10 is elongated slot, and 11 is clamping screw, and 12 is expansion apparatuss, and 13 is vacuum
Oiling device joint.
Below by way of specific embodiment, and the invention will be further described to combine accompanying drawing.
Specific embodiment:
Embodiment: with reference to Fig. 1-4, the oil-immersed current transformer of the present embodiment assists recharging oil device, comprising:
Supporting mechanism and elevating mechanism；Wherein, supporting mechanism includes two root posts 1 and is connected to column 1 upper end
Two cross bars 2, the opposite end of two cross bars connected firmly with a disk 3, and the centre bore of disk is internal thread hole.
In concrete setting, the spacing of two root posts is adjustable, carries out oiling to be applied to the current transformer to different specification size
Work, concrete structure is: the tip-end-side of each column 1 is provided with the u font groove 9 of level, and cross bar 2 is embedded in u font groove
In, the thickness of cross bar 2 is substantially suitable with the height of u font groove 9, is provided with elongated slot 10 along its length in the top surface of cross bar,
In the top insertion u font groove of clamping screw 11 Self-stabilised post, the front end of clamping screw 11 is until be embedded in elongated slot 10 i.e.
Cross bar can be locked on column, unclamp the spacing that clamping screw can adjust two root posts.
Elevating mechanism includes the leading screw 4 with the internal thread hole cooperation of disk 3, and leading screw is parallel with column, sets on the top of leading screw
There is the handle 5 driving leading screw to rotate；It is connected with crossbeam 6 in the bottom of leading screw, the two ends of crossbeam are connected to parallel with leading screw
Bolt 7.In concrete setting, the middle part of crossbeam 6 is provided with unthreaded hole and passes through for leading screw, and the two ends of crossbeam are again provided with unthreaded hole and use
In two bolts 7. of connection
In such Special use environment, in place of seeking to support for convenience of column 1, it is provided with, in the bottom of each column, the font of falling u
Gap 8, can by gap by upright supports on the channel-section steel or band steel of transformer susceptor edge, and can make support consolidate.
In concrete setting, each part of device is made using stainless steel it is ensured that can increase the service life while rigid, and
It is provided with engraved structure at the middle part of column it is ensured that to mitigate weight on the basis of intensity.
Referring to Fig. 5, in use, operate as follows:
1st, take off the oil-hole cover on current transformer expansion apparatuss 12, vacuum oiling device joint 13 is connected with oil filler point.
2nd, start oiling, treat that expansion apparatuss extend to precalculated position.
3rd, assemble this device, the spacing of adjustment two columns 1 according to the actual size of current transformer, fasten clamping screw 11,
And using the font of the falling u gap of column bottom, column is fixedly supported on transformer pedestal.
4th, two bolts 7 are screwed in expansion apparatuss 12 top female thread.
5th, take off vacuum oiling device, and the oil-hole cover on good and sound expansion apparatuss.
6th, the handle 5 on slow rotational lead screw top makes leading screw descending, until expansion apparatuss are retracted into the state of not stressing.
7th, this device, power cut-off are taken off.
The oil-immersed current transformer auxiliary recharging oil device of the present invention, reduces field operation risk, it is to avoid use crane band
The not enough equivalent risk with charging equipment distance coming.Rheology due to a lot of 110kv and above interval is located at road respectively with switch
Road both sides, both are connected by pipe is female, so accompany to stop interval and also need to remove pipe mother just to make the smooth operation of crane, and use this
Plant device and just break away from the requirement to site environment.In addition, decrease stopping power transmission risk, saving the activity duration, having ensured
Society's electricity consumption safety, is enterprise, the considerable intangible benefit of social creativity.
Claims (3)
1. oil-immersed current transformer auxiliary recharging oil device is it is characterised in that include:
Supporting mechanism and elevating mechanism；Described supporting mechanism includes two root posts (1) and is connected on described column
Two cross bars (2) at end, the opposite end of two cross bars is connected firmly with a disk (3), and the centre bore of described disk is internal thread hole；
Described elevating mechanism includes the leading screw (4) with the internal thread hole cooperation of described disk, and described leading screw is parallel with described column,
It is provided with the handle (5) driving leading screw to rotate on the top of leading screw；It is connected with crossbeam (6), described horizontal stroke in the bottom of described leading screw
The two ends of beam are connected to the bolt (7) parallel with leading screw；
The spacing of described two root posts is adjustable, and concrete structure is: the tip-end-side of each described column is provided with the u font groove of level
(9), described cross bar is embedded in described u font groove, is provided with elongated slot (10) along its length in the top surface of cross bar, locking
In the top insertion u font groove of bolt (11) Self-stabilised post and in embedded described elongated slot, cross bar is locked on column.
2. oil-immersed current transformer according to claim 1 auxiliary recharging oil device is it is characterised in that each described column
Bottom be provided with the gap (8) of the font of falling u.
3. oil-immersed current transformer according to claim 1 assists recharging oil device it is characterised in that described column
Middle part is provided with engraved structure to mitigate weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410203974.XA CN103956251B (en) | 2014-05-14 | 2014-05-14 | Auxiliary oil feed device of oil-immersed current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410203974.XA CN103956251B (en) | 2014-05-14 | 2014-05-14 | Auxiliary oil feed device of oil-immersed current transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103956251A CN103956251A (en) | 2014-07-30 |
| CN103956251B true CN103956251B (en) | 2017-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410203974.XA Expired - Fee Related CN103956251B (en) | 2014-05-14 | 2014-05-14 | Auxiliary oil feed device of oil-immersed current transformer |
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| CN (1) | CN103956251B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328343A (en) * | 2015-06-29 | 2017-01-11 | 国网河南省电力公司南阳供电公司 | Oil supplement tool and oil supplement method for corrugated expander of current transformer |
| CN105366599A (en) * | 2015-12-02 | 2016-03-02 | 国网内蒙古东部电力有限公司检修分公司 | Refueling sling of ripple expander |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203812690U (en) * | 2014-05-14 | 2014-09-03 | 国家电网公司 | Auxiliary oil recharging device of oil-immersed current transformer |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52137631A (en) * | 1976-05-12 | 1977-11-17 | Inoue Electric Mfg | Gas filled and oil filled transformer |
| CN201292247Y (en) * | 2008-09-29 | 2009-08-19 | 黑河电业局 | Special purpose tools for oil compensation of ripple glaze metal expansion device |
| CN102145873B (en) * | 2011-01-20 | 2014-02-12 | 河南省电力公司洛阳供电公司 | Oil supplementing device for bellows expander |
| CN102737815A (en) * | 2012-06-06 | 2012-10-17 | 山西省电力公司运城供电分公司 | Device for stretching corrugated tube expander |
| CN103295737A (en) * | 2013-05-15 | 2013-09-11 | 河南省电力公司平顶山供电公司 | Special oiling tool for current transformer of metal corrugated sheet type expander |
| CN203573784U (en) * | 2013-12-09 | 2014-04-30 | 国家电网公司 | Oil recharging device of current transformer with metal corrugated type expander |
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2014
- 2014-05-14 CN CN201410203974.XA patent/CN103956251B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203812690U (en) * | 2014-05-14 | 2014-09-03 | 国家电网公司 | Auxiliary oil recharging device of oil-immersed current transformer |
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| CN103956251A (en) | 2014-07-30 |
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Granted publication date: 20170201 |
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