CN103295737A - Special oiling tool for current transformer of metal corrugated sheet type expander - Google Patents
Special oiling tool for current transformer of metal corrugated sheet type expander Download PDFInfo
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- CN103295737A CN103295737A CN201310179254XA CN201310179254A CN103295737A CN 103295737 A CN103295737 A CN 103295737A CN 201310179254X A CN201310179254X A CN 201310179254XA CN 201310179254 A CN201310179254 A CN 201310179254A CN 103295737 A CN103295737 A CN 103295737A
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- current transformer
- screw rod
- support
- expander
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Abstract
The invention discloses a special oiling tool for a current transformer of a metal corrugated sheet type expander and belongs to the technical field of current transformer oiling. The special oiling tool comprises a support, a threaded hole for mounting a screw rod is formed on the upper portion of the support, the screw rod is provided with an adjustable nut which is arranged above the threaded hole, a metal corrugated expander connecting component is arranged at the lower end of the screw rod and comprises a U-shaped retaining frame, the screw rod is connected on the upper portion of the U-shaped retaining frame, connecting plates are connected at lower ends of the U-shaped retaining frame, and bolts are arranged on the connecting plates. By adjusting the adjustable nut, the metal corrugated expander is driven to be lifted up by screw rod nut pair driving force, insulating oil is poured into the current transformer via an exhaust hole, and the problem of unrecoverable carbonization caused to the periphery of an insulating part due to small bubbles generated by original oil pouring methods is solved. The special oiling tool is simple in structure, economic, practical, safe, reliable and easy to popularize and use.
Description
Technical field
The invention belongs to electric power system current transformer oiling technical field, particularly a kind of wavy metal chip expander current transformer oiling specific purpose tool.
Background technology
At present, in the method for wavy metal chip expander current transformer being replenished the oiling employing be, pressurize to insulating oil in the fuel outlet valve place in wavy metal chip expander current transformer bottom, insulating oil is joined wavy metal chip expander current transformer inside by force, be wavy metal chip expander current transformer makeup oil.Owing to adopt the method for bottom pressurization oiling, be easy to the bubble in the insulating oil is squeezed into wavy metal chip expander current transformer inside.Float to wavy metal chip expander current transformer top on little bubble is suspended on wavy metal chip expander current transformer line bag, the insulating part and is difficult to and discharge timely by steam vent.When there is bubble wavy metal chip expander electric current mutual inductance inside, under action of high voltage, can form partial discharge.This office puts and can decompose the insulating oil around the bubble, causes expendable carbonization to around the insulating part, has a strong impact on safe operation and the useful life of current transformer.CN 201949215 U disclose a kind of current transformer fueling vehicle, comprise two logical parts, the upper end of three-way piece is provided with cap, last cap and three-way piece are installed with a mobilizable thimble by being threaded in two logical parts, be provided with left breather pipe and right breather pipe at two logical parts, be provided with left valve at left breather pipe, be provided with right valve at right breather pipe, wherein, be provided with connector in the lower end of two logical parts.Described current transformer fueling vehicle can add dissimilar current transformers, makeup oil, but do not change yet traditional from the bottom fuel outlet valve to the insulating oil form of pressurizeing, still have potential safety hazard.
Summary of the invention
The object of the invention is to solve the problem that conventional oiling joins bubble metal bellow expander current transformer inside easily, provides a kind of simple and practical, wavy metal chip expander current transformer that coefficient of safety is high to refuel specific purpose tool.
To achieve these goals, the technical solution used in the present invention is: a kind of wavy metal chip expander current transformer oiling specific purpose tool, it comprises support, described support top arranges installs the screw flight hole, described screw rod arranges adjustable nut, described adjustable nut is arranged at described screwed hole top, and described screw rod lower end arranges the metal bellow expander connecting elements.
Described metal bellow expander connecting elements comprises the U-shaped retainer, and described U-shaped retainer top connects described screw rod, and described U-shaped retainer lower end arranges connecting plate, on the described connecting plate bolt is set.
Described support is set to two fixing U-shaped supports of U-shaped carrier units intersection.
Described support is set to single U-shaped support, described U-shaped support and described U-shaped retainer space intersection.
Described support is set to A-frame.
Described screw rod is set to the full screw thread screw rod.
Described adjustable nut is set to the butterfly adjustable nut.
Described adjustable nut below arranges packing ring.
The oil circuit heating arrangements is set on the described support.
The present invention arranges the described screw rod that described adjustable nut is installed on described support top, described screw rod lower end arranges the metal bellow expander connecting elements, pass through to adjust described adjustable nut in the use, rise or descend with the moving described screw rod of feed screw nut auxiliary driving pull strap, realize the purpose that metal bellow expander promotes; Described metal bellow expander connecting elements comprises the U-shaped retainer, described U-shaped retainer top connects described screw rod, described U-shaped retainer lower end arranges connecting plate, on the described connecting plate bolt is set, by described bolt the present invention and metal bellow expander are connected in one, the bolt bonding strength is big, reliability is high; Described support can have various ways: the one,, described support arranges the U-shaped support, described U-shaped support intersects fixedly connected by two U-shaped carrier units, form four impetus and evenly bear pressure, bigger working space of inner formation, described U-shaped retainer can not interfere when rising, and also is convenient to described bolt is tightened, unclamped, and is workable; The 2nd,, described support is set to single U-shaped support, described U-shaped support and described U-shaped retainer space intersection, because the effect of described U-shaped retainer, equally can stable support, and save material, reduce cost; The 3rd,, described support is set to A-frame, and good stability is difficult for deforming in the use, and lifting position is accurate; Described screw rod is set to the full screw thread screw rod, and is easy to use, is suitable for different support height and different model metal bellow expander and promotes use; Described adjustable nut is set to the butterfly adjustable nut, and is easy to adjust; Described adjustable nut below arranges packing ring, packing ring is replaceable, alleviate the wearing and tearing of described adjustable nut and described support, increase the service life, the oil circuit heating arrangements is set on the described support, can make to be added into the rising of fluid oil temperature, certainly temperature need be controlled in safe range, the micro-bubble that inside is contained expands, thereby bubble is risen, and significantly reduces bubble and is added into the interior probability of wavy metal chip expander current transformer.The present invention has changed the method for traditional employing bottom pressurization oiling, promote metal bellow expander to suitable height by described screw rod, open the steam vent at wavy metal chip expander current transformer top, by steam vent insulating oil is injected into current transformer inside, the bubble in the insulating oil that has solved former oiling method appearance is effectively squeezed into wavy metal chip expander current transformer inside, and what particularly minute bubbles caused causes expendable carbonization problem on every side to insulating part.Adopt the mode of specific purpose tool by the top oiling simultaneously, reduced metal bellow expander current transformer oil internal pressure, also improved operating efficiency.The present invention is simple in structure, cheap, economical and practical, safe and reliable, generally promotes the use of than being easier to.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further:
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is another kind of structural representation of the present invention.
Embodiment
As shown in Figure 1, a kind of wavy metal chip expander current transformer oiling specific purpose tool, it comprises support 1, described support 1 top arranges the screwed hole 2 that screw rod 3 is installed, described screw rod 3 arranges adjustable nut, described adjustable nut is arranged at described screwed hole 2 tops, and described screw rod 3 lower ends arrange the metal bellow expander connecting elements.
Described metal bellow expander connecting elements comprises U-shaped retainer 4, and described U-shaped retainer 4 tops connect described screw rod 3, and described U-shaped retainer lower end arranges connecting plate 5, and bolt 6 is set on the described connecting plate.
Described support 1 is set to two fixing U-shaped supports of U-shaped carrier units intersection.
Described screw rod 3 is set to the full screw thread screw rod.
Described adjustable nut is set to butterfly adjustable nut 7.
Described adjustable nut below arranges packing ring 8.
On the described support 1 oil circuit heating arrangements 9 is set.
As described in Figure 2, a kind of wavy metal chip expander current transformer oiling specific purpose tool, it comprises support 1, described support 1 top arranges the screwed hole 2 that screw rod 3 is installed, described screw rod 3 arranges adjustable nut, described adjustable nut is arranged at described screwed hole 2 tops, and described screw rod 3 lower ends arrange the metal bellow expander connecting elements.
Described metal bellow expander connecting elements comprises U-shaped retainer 4, and described U-shaped retainer 4 tops connect described screw rod 3, and described U-shaped retainer lower end arranges connecting plate 5, and bolt 6 is set on the described connecting plate.
Described support 1 is set to A-frame.
Described screw rod 3 is set to the full screw thread screw rod.
Described adjustable nut is set to butterfly adjustable nut 7.
Described adjustable nut below arranges packing ring 8.
On the described support 1 oil circuit heating arrangements 9 is set.
A kind of wavy metal chip expander current transformer oiling specific purpose tool, it comprises support 1, described support 1 top arranges the screwed hole 2 that screw rod 3 is installed, described screw rod 3 arranges adjustable nut, described adjustable nut is arranged at described screwed hole 2 tops, and described screw rod 3 lower ends arrange the metal bellow expander connecting elements.
Described metal bellow expander connecting elements comprises U-shaped retainer 4, and described U-shaped retainer 4 tops connect described screw rod 3, and described U-shaped retainer lower end arranges connecting plate 5, and bolt 6 is set on the described connecting plate.
Described support 1 is set to single U-shaped support, described U-shaped support and described U-shaped retainer space intersection.
Described screw rod 3 is set to the full screw thread screw rod.
Described adjustable nut is set to butterfly adjustable nut 7.
Described adjustable nut below arranges packing ring 8.
On the described support 1 oil circuit heating arrangements 9 is set.
As described in above-mentioned specific embodiment, the present invention arranges the described screw rod 3 that described adjustable nut is installed on described support 1 top, described screw rod 3 lower ends arrange the metal bellow expander connecting elements, pass through to adjust described adjustable nut in the use, rise or descend with the moving described screw rod 3 of feed screw nut auxiliary driving pull strap, realize the purpose that metal bellow expander promotes; Described metal bellow expander connecting elements U-shaped retainer 4, described U-shaped retainer 4 tops connect described screw rod 3, described U-shaped retainer lower end arranges connecting plate 5, bolt 6 is set on the described connecting plate, by described bolt 6 the present invention and metal bellow expander are connected in one, the bolt bonding strength is big, reliability is high; Described support can have various ways: the one,, described support 1 is set to two fixing U-shaped supports of U-shaped carrier units intersection, form four impetus and evenly bear pressure, bigger working space of inner formation, described U-shaped retainer 4 companions can not interfere when rising, also be convenient to described bolt 6 is tightened, unclamped, workable; The 2nd,, described support 1 is set to A-frame, and good stability is difficult for deforming in the use, and lifting position is accurate; The 3rd,, described support 1 is set to single U-shaped support, described U-shaped support and described U-shaped retainer 4 space intersections, because described U-shaped retainer 4 is connected and fixed effect, equally can stable support, and save material, reduce cost; Described screw rod 3 is set to the full screw thread screw rod, and is easy to use, is suitable for different support height and different model metal bellow expander and promotes use; Described adjustable nut is set to butterfly adjustable nut 7, and is easy to adjust; Described adjustable nut below arranges packing ring 8, described packing ring 8 is replaceable, alleviate the wearing and tearing of described adjustable nut and described support 1, increase the service life, on the described support 1 oil circuit heating arrangements 9 is set, can make to be added into the rising of fluid oil temperature, certainly temperature need be controlled in safe range, the micro-bubble that inside is contained expands, thereby bubble is risen, and significantly reduces bubble and is added into the interior probability of wavy metal chip expander current transformer.The present invention has changed the method for traditional employing bottom pressurization oiling, promote metal bellow expander to suitable height by described screw rod, open the steam vent at wavy metal chip expander current transformer top, by steam vent insulating oil is injected into current transformer inside, the bubble in the insulating oil that has solved former oiling method appearance is effectively squeezed into wavy metal chip expander current transformer inside, and what particularly minute bubbles caused causes expendable carbonization problem on every side to insulating part.Adopt the mode of specific purpose tool by the top oiling simultaneously, reduced metal bellow expander current transformer oil internal pressure, also improved operating efficiency.The present invention is simple in structure, cheap, economical and practical, safe and reliable, generally promotes the use of than being easier to.
Claims (9)
1. a wavy metal chip expander current transformer refuels specific purpose tool, it is characterized in that: it comprises support, described support top arranges installs the screw flight hole, described screw rod arranges adjustable nut, described adjustable nut is arranged at described screwed hole top, and described screw rod lower end arranges the metal bellow expander connecting elements.
2. wavy metal chip expander current transformer refuels specific purpose tool according to claim 1, it is characterized in that: described metal bellow expander connecting elements comprises the U-shaped retainer, described U-shaped retainer top connects described screw rod, described U-shaped retainer lower end arranges connecting plate, on the described connecting plate bolt is set.
3. wavy metal chip expander current transformer refuels specific purpose tool according to claim 1, it is characterized in that: described support is set to two U-shaped carrier units and intersects fixing U-shaped supports.
4. wavy metal chip expander current transformer refuels specific purpose tool according to claim 1, and it is characterized in that: described support is set to single U-shaped support, described U-shaped support and described U-shaped retainer space intersection.
5. wavy metal chip expander current transformer refuels specific purpose tool according to claim 1, and it is characterized in that: described support is set to A-frame.
6. wavy metal chip expander current transformer refuels specific purpose tool according to claim 1, and it is characterized in that: described screw rod is set to the full screw thread screw rod.
7. wavy metal chip expander current transformer refuels specific purpose tool according to claim 1, and it is characterized in that: described adjustable nut is set to the butterfly adjustable nut.
8. wavy metal chip expander current transformer refuels specific purpose tool according to claim 1, and it is characterized in that: described adjustable nut below arranges packing ring.
9. wavy metal chip expander current transformer refuels specific purpose tool as described in arbitrary as claim 1 to 8, it is characterized in that: the oil circuit heating arrangements is set on the described support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310179254XA CN103295737A (en) | 2013-05-15 | 2013-05-15 | Special oiling tool for current transformer of metal corrugated sheet type expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310179254XA CN103295737A (en) | 2013-05-15 | 2013-05-15 | Special oiling tool for current transformer of metal corrugated sheet type expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103295737A true CN103295737A (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310179254XA Pending CN103295737A (en) | 2013-05-15 | 2013-05-15 | Special oiling tool for current transformer of metal corrugated sheet type expander |
Country Status (1)
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| CN (1) | CN103295737A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956251A (en) * | 2014-05-14 | 2014-07-30 | 国家电网公司 | Auxiliary oil feed device of oil-immersed current transformer |
| CN108735457A (en) * | 2018-06-14 | 2018-11-02 | 贵州电网有限责任公司 | Bellow expander elevating mechanism |
| CN108847336A (en) * | 2018-07-27 | 2018-11-20 | 国网河北省电力有限公司新乐市供电分公司 | A kind of efficient refueling device of mutual inductor bellow expander |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1949393A1 (en) * | 2005-11-16 | 2008-07-30 | CTR Manufacturing Industries Limited | Transformer conservator isolation valve (tciv) |
| 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 |
| CN202126912U (en) * | 2011-06-23 | 2012-01-25 | 嵩县电业局 | Lifting tool for fueling operation of current transformer |
| CN202443822U (en) * | 2012-02-20 | 2012-09-19 | 邢台供电公司 | Expander hoisting frame |
| 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 |
| CN202615983U (en) * | 2012-06-21 | 2012-12-19 | 山西省电力公司阳泉供电公司 | Auxiliary oil injection device for oil-immersed current transformer |
-
2013
- 2013-05-15 CN CN201310179254XA patent/CN103295737A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1949393A1 (en) * | 2005-11-16 | 2008-07-30 | CTR Manufacturing Industries Limited | Transformer conservator isolation valve (tciv) |
| 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 |
| CN202126912U (en) * | 2011-06-23 | 2012-01-25 | 嵩县电业局 | Lifting tool for fueling operation of current transformer |
| CN202443822U (en) * | 2012-02-20 | 2012-09-19 | 邢台供电公司 | Expander hoisting frame |
| 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 |
| CN202615983U (en) * | 2012-06-21 | 2012-12-19 | 山西省电力公司阳泉供电公司 | Auxiliary oil injection device for oil-immersed current transformer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956251A (en) * | 2014-05-14 | 2014-07-30 | 国家电网公司 | Auxiliary oil feed device of oil-immersed current transformer |
| CN108735457A (en) * | 2018-06-14 | 2018-11-02 | 贵州电网有限责任公司 | Bellow expander elevating mechanism |
| CN108735457B (en) * | 2018-06-14 | 2023-11-10 | 贵州电网有限责任公司 | Lifting mechanism for corrugated expander |
| CN108847336A (en) * | 2018-07-27 | 2018-11-20 | 国网河北省电力有限公司新乐市供电分公司 | A kind of efficient refueling device of mutual inductor bellow expander |
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Application publication date: 20130911 |