CN103956251A - Auxiliary oil feed device of oil-immersed current transformer - Google Patents
Auxiliary oil feed device of oil-immersed current transformer Download PDFInfo
- Publication number
- CN103956251A CN103956251A CN201410203974.XA CN201410203974A CN103956251A CN 103956251 A CN103956251 A CN 103956251A CN 201410203974 A CN201410203974 A CN 201410203974A CN 103956251 A CN103956251 A CN 103956251A
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- oil
- current transformer
- leading screw
- column
- screw rod
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- 230000003028 elevating effect Effects 0.000 claims description 7
- 239000013585 weight reducing agent Substances 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
- 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
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007689 inspection Methods 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
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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- 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 the auxiliary recharging oil device of a kind of oil-immersed current transformer.
Background technology:
At present, the 110kV using in electric power system, the current transformer of 220kV electric pressure are divided into SF6 or filling type, and wherein filling type accounts for the overwhelming majority, and the maintenance to filling type current transformer, repairing belong to common work.
Oil-immersed current transformer adopts the all-sealed structure with expander, if drawn oil sample, should add in time the transformer oil of equivalent, if instrument transformer overhaul is also tackled it and carried out strict vacuum oil.
After oiling completes, the metal expander of reflection instrument transformer oil level is due to the impact of negative pressure and deadweight, and in taking off oiling interface, bellow expander can shrink, and makes oil ejection.For avoiding this situation, adopt now the mode of crane, bellow expander is stablized, but this mode usually needs the bus of instrument transformer top or adjacent spaces bridge line to accompany and stop, greatly affect the production schedule, increased and stopped power transmission operation, brought field operation risk.
Summary of the invention:
For overcoming the defect of prior art, the object of the present invention is to provide a kind of oil-immersed current transformer to assist recharging oil device, be applicable to metal expander firm of sizes current transformer, this installation weight is light and handy, easy and simple to handle, be easy to assembling, apply after this device, reduce and stopped power transmission operation, reduced field operation risk.
Technical solution problem of the present invention adopts following technical scheme:
Oil-immersed current transformer is assisted recharging oil device, and it comprises:
Supporting mechanism and elevating mechanism; Described supporting mechanism comprises two root posts and is connected to two cross bars of described column upper end, and end in opposite directions and a disk of two cross bars connect firmly, and the centre bore of described disk is internal thread hole;
Described elevating mechanism comprises the leading screw coordinating with the internal thread hole of described disk, and described leading screw is parallel with described column, is provided with the handle that drives leading screw to rotate on the top of leading screw; Bottom at described leading screw is connected with crossbeam, and the two ends of described crossbeam are connected with respectively the bolt parallel with leading screw.
The bottom of each described column is provided with the gap of reverse U shape.
The middle part of described column is provided with engraved structure with weight reduction.
The spacing of described two root posts is adjustable, 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, end face at cross bar is provided with elongated slot along its length, and the top of clamping screw Self-stabilised post is inserted in U font groove and embedded in described elongated slot cross bar is locked on column.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, each parts of this device adopt stainless steel to make, and can increase the life cycle of device, and the middle part of column is provided with engraved structure, on the basis of proof strength to alleviate weight of equipment.
2, the bottom of column is provided with reverse U shape gap, under this Special use environment, can by gap by upright supports on the channel-section steel or band steel of instrument transformer pedestal, be convenient to find the strong point and make whole device firm.
3, the spacing of two columns is adjustable, is applicable to the instrument transformer of different specification size, adopts separable assembly structure between column and cross bar, is easy to carry to job site.
4, between two cross bars, adopt disk to coordinate with elevating screw, can, by stressed being evenly firmly passed on cross bar and column of leading screw, increase the steadiness of device, leading screw adopts handle to rotate, can be by single independent operation.
5, in the prior art before using this device, the site inspection before work is found: rheology top is hospital bus bar, be highly approximately 10 meters, and adjacent equipment interval is charged, considers safety work distance, after must having a power failure, arranges crane operation.Because adjacent spaces is powered to high ferro, maintenance task can only be arranged in the late into the night, and have a power failure and operate through the power transformations of 4 hours, the service work of 3 hours, the power transformation recovery operation of 3 hours, repairing work completes.Adopt after apparatus of the present invention,, oiling work has shortened to 3 hours by original 8.4 hours.This new device combination mounted configuration is stable, can be by single independent operation.
6, adopt this device greatly to save cost, according to 2013 be example, Chuzhou electric company completes oil-immersed current transformer repairing totally 4 times.If coordinated the way having a power failure according to former use engineering truck, need at least 1 engineering truck, 3 operating personnels, also need a crane and commander, use after this device, only need 1 engineering truck, 3 operating personnels, by 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, adopt after this new device, avoided stopping power transmission operation, according to switch operation personnel three people, calculating of engineering truck, can save (3*200+400) * 4=4000.Taking the 110kV of road junction transformer station tri-Chu 512 as example, its average current is about 220A, calculate by the electricity charge 0.5/ degree, the electric quantity loss of saving by the application of this new device is: [(8.4-3) * 110*1000*220*1.732*3600*0.5/3.6*1000000] * 4=113168.88.Total cost saving: 4800+4000+113168.88=121968.88 unit.
Brief description of the drawings:
Fig. 1 is the front view of this device; Fig. 2 is this device left view (only illustrate in figure column, cross bar, clamping screw and disk); Fig. 3 is the end view of column; The vertical view of this device of Fig. 4 (only illustrate in figure column, cross bar, clamping screw and disk); Fig. 5 is the use view of this device.
Number in the figure: 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, and 8 is reverse U shape gap, and 9 is U font groove, and 10 is elongated slot, and 11 is clamping screw, and 12 is expander, and 13 is vacuum oiling device joint.
Below pass through embodiment, and the invention will be further described by reference to the accompanying drawings.
Embodiment:
Embodiment: in conjunction with Fig. 1-4, the oil-immersed current transformer of the present embodiment is assisted recharging oil device, and it comprises:
Supporting mechanism and elevating mechanism; Wherein, end in opposite directions and a disk 3 that supporting mechanism comprises two root posts 1 and is connected to 2, two cross bars of two cross bars of column 1 upper end connect firmly, and the centre bore of disk is internal thread hole.
In specifically arranging, the spacing of two root posts is adjustable, to be applicable to that the current transformer of different specification size is carried out to oiling work, concrete structure is: the tip-end-side of each column 1 is provided with the U font groove 9 of level, cross bar 2 is embedded in U font groove, the height of the thickness of cross bar 2 and U font groove 9 is substantially suitable, end face at cross bar is provided with elongated slot 10 along its length, insert in U font groove at the top of clamping screw 11 Self-stabilised posts, the front end of clamping screw 11 is until be embedded in elongated slot 10 and cross bar can be locked on column, unclamp the spacing of clamping screw capable of regulating two root posts.
Elevating mechanism comprises the leading screw 4 coordinating with the internal thread hole of disk 3, and leading screw is parallel with column, is provided with the handle 5 that drives leading screw to rotate on the top of leading screw; Be connected with crossbeam 6 in the bottom of leading screw, the two ends of crossbeam are connected with respectively the bolt parallel with leading screw 7.In specifically arranging, the middle part of crossbeam 6 is provided with unthreaded hole and passes for leading screw, and the two ends of crossbeam are provided with unthreaded hole equally for connecting two bolts 7.
In this type of Special use environment, seek to support part for convenience of column 1, be provided with the gap 8 of reverse U shape in the bottom of each column, can by gap by upright supports on the channel-section steel or band steel of instrument transformer susceptor edge, and can make to support firm.
In specifically arranging, install each parts and adopt stainless steel to make, when ensureing rigidity, can increase the service life, and be provided with engraved structure at the middle part of column, on the basis of proof strength with weight reduction.
Referring to Fig. 5, in use, operation as follows:
1, take off the oil-hole cover on current transformer expander 12, vacuum oiling device joint 13 is connected with oil filler point.
2, start oiling, treat that expander is stretched to precalculated position.
3, assemble this device according to the actual size of current transformer, adjust the spacing of two columns 1, fastening clamping screw 11, and adopt the reverse U shape gap of column bottom that column is firmly supported on instrument transformer pedestal.
4, two bolts 7 are screwed in expander 12 top internal threads.
5, take off vacuum oiling device, and oil-hole cover on good and sound expander.
6, slowly the handle 5 on rotational lead screw top makes leading screw descending, until expander is retracted into the state of not stressing.
7, take off this device, power cut-off.
Oil-immersed current transformer of the present invention is assisted recharging oil device, has reduced field operation risk, has avoided using that crane brings with charging equipment apart from not enough equivalent risk.Because rheology and the switch at a lot of 110kV and above interval lay respectively at road both sides, both are by managing female connection, stop interval and also need to remove and manage mother and just can make the smooth operation of crane, and use this device just to break away from the requirement to site environment so accompany.In addition, reduced and stopped power transmission risk, saved the activity duration, ensured social Electrical Safety, for enterprise, social creativity considerable intangible benefit.
Claims (4)
1. the auxiliary recharging oil device of oil-immersed current transformer, is characterized in that comprising:
Supporting mechanism and elevating mechanism; Described supporting mechanism comprises two root posts (1) and is connected to two cross bars (2) of described column upper end, and the end in opposite directions of two cross bars and a disk (3) connect firmly, and the centre bore of described disk is internal thread hole;
Described elevating mechanism comprises the leading screw (4) coordinating with the internal thread hole of described disk, and described leading screw is parallel with described column, is provided with the handle (5) that drives leading screw to rotate on the top of leading screw; Be connected with crossbeam (6) in the bottom of described leading screw, the two ends of described crossbeam are connected with respectively the bolt parallel with leading screw (7).
2. the auxiliary recharging oil device of oil-immersed current transformer according to claim 1, is characterized in that, the bottom of each described column is provided with the gap of reverse U shape (8).
3. the auxiliary recharging oil device of oil-immersed current transformer according to claim 1, is characterized in that, the middle part of described column is provided with engraved structure with weight reduction.
4. the auxiliary recharging oil device of oil-immersed current transformer according to claim 1, it is characterized in that, the spacing of described two root posts is adjustable, concrete structure is: the tip-end-side of each described column is provided with the U font groove (9) of level, described cross bar is embedded in described U font groove, be provided with along its length elongated slot (10) at the end face of cross bar, the top of clamping screw (11) Self-stabilised post is inserted in U font groove and is embedded in described elongated slot cross bar is locked on column.
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 true CN103956251A (en) | 2014-07-30 |
| CN103956251B CN103956251B (en) | 2017-02-01 |
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Family Applications (1)
| 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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| Country | Link |
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| CN (1) | CN103956251B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Citations (7)
| 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 |
| CN102145873A (en) * | 2011-01-20 | 2011-08-10 | 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 |
| CN203812690U (en) * | 2014-05-14 | 2014-09-03 | 国家电网公司 | Auxiliary oil recharging device of oil-immersed current transformer |
-
2014
- 2014-05-14 CN CN201410203974.XA patent/CN103956251B/en not_active Expired - Fee Related
Patent Citations (7)
| 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 |
| CN102145873A (en) * | 2011-01-20 | 2011-08-10 | 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 |
| CN203812690U (en) * | 2014-05-14 | 2014-09-03 | 国家电网公司 | Auxiliary oil recharging device of oil-immersed current transformer |
Cited By (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 |
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| Publication number | Publication date |
|---|---|
| CN103956251B (en) | 2017-02-01 |
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Granted publication date: 20170201 |