CN2620360Y - Oil paper standing upside down type high-voltage current transformer - Google Patents
Oil paper standing upside down type high-voltage current transformer Download PDFInfo
- Publication number
- CN2620360Y CN2620360Y CN 03220111 CN03220111U CN2620360Y CN 2620360 Y CN2620360 Y CN 2620360Y CN 03220111 CN03220111 CN 03220111 CN 03220111 U CN03220111 U CN 03220111U CN 2620360 Y CN2620360 Y CN 2620360Y
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- China
- Prior art keywords
- primary conductor
- shell body
- oilpaper
- turn
- tension current
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- Expired - Lifetime
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Abstract
The utility model discloses an oil-paper vertical type high-voltage current mutual inductor. An expander is connected on the outer shell body of the mutual inductor; a primary conductor is single-turn or multi-turn; when the primary conductor is multi-turn, the primary conductor is composed of nested a plurality of coaxial hollow aluminum tubes or copper tubes; one end of the primary conductor is connected with the outer shell body, while the other end is axially sealed through a plurality of V-shaped rubber pads, Teflon insulation blocks and hot galvanizing flanges; a parachute skirt is provided outside a bushing, while the upper and the lower ends of the bushing are connected with casting aluminum flanges; the outer shell body is an aluminum-casting profile modeling shell body. The utility model has the advantages of simple structure, good technology, small size, significantly enhanced product performance, convenient installation and operation, simple maintenance, small leakage reactance and high precision of secondary windings; the primary conductor is single-turn or multi-turn and is concentric and coaxial, thus has good dynamic stability; the insulation bushing increases the hydrophobicity, anti-aging and anti-ultraviolet ability of the external surface of the utility model; the casting aluminum has the advantages of light weight, magnetism isolation, fast heat dissipation and finished appearance.
Description
Technical field
The utility model relates to a kind of current transformer, a kind ofly specifically is used in the inverted high-tension current inductor of oilpaper that system's rated voltage is 110KV and above electrical network.
Background technology
The high-tension current inductor that uses on the domestic electrical network; its effect is that electrical network is measured and protected; rated voltage is 110KV; rated current is the high-tension current inductor of 1000A; wherein a kind of common structure characteristics of high-tension current inductor of just vertical and another kind of chain are Primary Conductor to be curved " U " font; its outer multi-layer cable paper and aluminium foil electric screen of alternately being surrounded by; and the connector of its Primary Conductor outlet is more; secondary winding is sleeved on the bottom of a winding; and the lead-in wire position of a winding is good with the colligation of glass adhesive tape, reinstall fuel tank; put insulator and fill with transformer oil.Above-mentioned two kinds of high-tension current inductors all exist Primary Conductor length and it is surrounded by very thick insulating paper outward, so caloric value is big, weak heat-dissipating, and because Primary Conductor adopts multiturn mode arranged side by side, and cause it when overcurrent, to produce very big electric power, be easy to make the damage of distortion of primary conductive bar and main insulation, its dynamic and thermal stability performance is bad, and easy to leak and small product size are big, deal heavy, cause inconvenience such as installation, use, transportation.
Summary of the invention
To be solved in the utility model is exactly deficiency in existing high-tension current inductor technology and the structure, and caloric value is big during work, heat radiation is bad, and the dynamic and thermal stability performance is bad, the problem that easy to leak and small product size are big, deal is heavy.
Solve the technical scheme that its technical problem adopts: this instrument transformer is connected with expander on shell body top; Primary Conductor is single turn or multiturn.
When described Primary Conductor was multiturn, Primary Conductor was that a plurality of coaxial hollow aluminum pipes or copper pipe suit form.
One end of described Primary Conductor is connected with shell body, and the other end adopts several " V " shape rubber cushions, teflon insulation piece, hot galvanizing flange to carry out axial seal.
Described sleeve pipe is poured into a mould the silicon rubber full skirt outward by reinforcing glass fiber tube, and two ends are connected with cast cast aluminium flange up and down.
Described shell body is a cast aluminium profiling housing.
Beneficial effect: the utility model compared with prior art, have the following advantages: 1. simple in structure, the good manufacturability of product, volume are little, properties of product significantly improve, highly only be 2600mm, the glass fibre reinforced plastic cylinder internal diameter only has φ 180, and product weight is light, only is 420-480kg, than original product weight alleviate, volume-diminished half, easy to install, safeguard simple; 2. little, the secondary winding precision height (can reach the 0.2S level) of its secondary winding leakage reactance, protected level can satisfy stable state (can reach the 5P30 level) and the requirement of TPY transient characterisitics; 3. can be according to the size of primary current, its Primary Conductor can be that single turn also can be multiturn (Primary Conductor is distributed as with one heart, coaxial-type), its dynamic stability is good; 4. the compound insulating sleeve made from silastic material can improve the hydrophobicity of its outer surface, anti-aging, anti-uv-ray, and that the shell of cast aluminium profiling also has is in light weight, every magnetic, rapid heat dissipation, advantage elegant in shape.
Description of drawings
Fig. 1 is the inverted high-tension current inductor structure chart of the utility model list current ratio oilpaper.
Fig. 2 is that the utility model multiple current is than the inverted high-tension current inductor structure chart of oilpaper.
Fig. 3 is that the utility model multiple current is than the inverted high-tension current inductor Primary Conductor part of oilpaper partial enlarged drawing.
Fig. 4 once is connected in series the line schematic diagram for the utility model multiple current than the inverted high-tension current inductor of oilpaper.
Fig. 5 is the utility model multiple current than the inverted high-tension current inductor of oilpaper once and elementary diagram.
Embodiment
Embodiment 1: in Fig. 1, when primary current is single current ratio, the inverted high-tension current inductor of oilpaper is to be passed from secondary winding 5 centers by Primary Conductor 3, secondary winding 5 is fixed in the housing 2, housing 2 is fixed on the top of silicon rubber compound insulating sleeve 6, the base 7 of silicon rubber compound insulating sleeve 6 summation current transformers is fixed together, the secondary outlet box 8 that connects secondary winding is arranged in the middle of the base 7, the joint hinge 9 of product lifting usefulness, pin type oil discharging valve 10, metal stainless steel expander 1 is installed in the top of housing 2, binding post 4 is fixed on the Primary Conductor 3, be full of transformer oil in the product, form an inverted high-tension current inductor of complete oilpaper.
Primary Conductor 3 is to make conductor by aluminum pipe or copper pipe, and the cross section of its conduction is determined according to the requirement of rated current and short circuit current; According to current ratio can be single turn or multiturn, plates corresponding metal coating and its surperficial naked layer on the surface of Primary Conductor 3, and its single turn length is about about 900mm.Its secondary winding protected level 30ZH120 silicon steel sheet that adopts unshakable in one's determination; Measure the level ultracrystallite iron core that adopts unshakable in one's determination; Recently select corresponding specification enamelled wire according to the electric current of product, be wrapped on the ring-shaped core, secondary winding is merged in order, and tie up the aluminium matter suspension bracket of secondary lead wires.Outside the main insulation of product is wrapped up in merging good secondary winding and on the suspension bracket of lead-in wire.The main insulation of product is high-tension cable paper, semiconducting paper, and as capacitance plate, the different electric pressures of main insulation are divided into 2-5 main screen and carry out dividing potential drop, being provided with 4-6 end screen between per two main screens all presses, ring portion only has main screen, and straight line portion comprises main screen and end screen, and main insulation is divided into annular part and linear portions, the insulating barrier of these two parts is wrapped up continuously, could effectively guarantee the performance of product.Wherein with the end screen of semiconductor paper tape coiling, the length of end screen and the length of design and position dimension necessarily require accurately, otherwise will directly influence the electric field strength and the capacitance of product.The main insulation of product is after finishing, put into to housing fixing, adopt multi-ply paper lath and profiling multi-ply paper lath to carry out spacing and fixing, and leave many places oil grooves flowing for transformer oil, the ground connection screen binding post of product, be cast on the secondary connection plate, screen dielectric dissipation factor in the end of product is little and stable like this, simultaneously also reduced the many places leak source for product, the product assembling is finished laggard promoting the circulation of qi and is pressed test, carry out vacuum oil then and handle, can provide the routine test of dispatching from the factory after the product vacuum oil is qualified.
Embodiment 2: in Fig. 2, when primary current is the multiple current ratio, can adopt coaxial many hollow aluminum pipes or copper pipe suit to form, every contact tube is realized different current ratios by series-parallel system.The inverted high-tension current inductor of oilpaper is partly 3 to be passed from secondary winding 5 centers by Primary Conductor, secondary winding 5 is fixed in the housing 2, housing 2 is fixed on the top of silicon rubber compound insulating sleeve 6, the base 7 of silicon rubber compound insulating sleeve 6 summation current transformers is fixed together, the secondary outlet box 8 that connects secondary winding is arranged in the middle of the base 7, the joint hinge 9 of product lifting usefulness, pin type oil discharging valve 10, metal stainless steel expander 1 is installed in the top of housing 2, binding post 4 is fixed on the Primary Conductor 3, be full of transformer oil in the product, form an inverted high-tension current inductor of complete oilpaper.Other and embodiment 1 omit together.
In Fig. 3, Fig. 4, Fig. 5, the 21st, P2 binding post, the 22nd, C2 binding post, the 23rd, outer conductor, the 24th, interior contact tube, the 25th, series connection busbar, the 26th, P1 binding post, the 27th, turn-to-turn insulation piece, the 28th, C1 binding post.
Claims (5)
1, the inverted high-tension current inductor of a kind of oilpaper, this instrument transformer has a base, be connected with sleeve pipe on the base, sleeve pipe top is connected with shell body, secondary winding and lead-in wire thereof are arranged in the shell, secondary winding and lead-in wire thereof are wrapped with the main insulation body, the inclusion enclave center of main insulation body and secondary winding is porose, Primary Conductor is passed from the hole, the lead-in wire of secondary winding is guided on the secondary outlet box on the base by sleeve pipe by shell body top, and it is characterized in that: this instrument transformer is connected with expander on shell body top; Primary Conductor is single turn or multiturn.
2, the inverted high-tension current inductor of oilpaper as claimed in claim 1 is characterized in that: when described Primary Conductor was multiturn, Primary Conductor was that a plurality of coaxial hollow aluminum pipes or copper pipe suit form.
3, the inverted high-tension current inductor of oilpaper as claimed in claim 1 is characterized in that: an end of described Primary Conductor is connected with shell body, and the other end adopts several " V " shape rubber cushions, teflon insulation piece, hot galvanizing flange to carry out axial seal.
4, the inverted high-tension current inductor of oilpaper as claimed in claim 1 is characterized in that: described sleeve pipe is poured into a mould the silicon rubber full skirt outward by reinforcing glass fiber tube, and two ends are connected with cast cast aluminium flange up and down.
5, the inverted high-tension current inductor of oilpaper as claimed in claim 1 is characterized in that: described shell body is a cast aluminium profiling housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03220111 CN2620360Y (en) | 2003-02-26 | 2003-02-26 | Oil paper standing upside down type high-voltage current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03220111 CN2620360Y (en) | 2003-02-26 | 2003-02-26 | Oil paper standing upside down type high-voltage current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2620360Y true CN2620360Y (en) | 2004-06-09 |
Family
ID=34244288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03220111 Expired - Lifetime CN2620360Y (en) | 2003-02-26 | 2003-02-26 | Oil paper standing upside down type high-voltage current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2620360Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1808646B (en) * | 2005-01-19 | 2010-10-13 | 江苏思源赫兹互感器有限公司 | Oil-immerged inversed current transformer |
| CN103811164A (en) * | 2012-11-07 | 2014-05-21 | 江苏思源赫兹互感器有限公司 | Current transformer |
| CN104376765A (en) * | 2014-11-11 | 2015-02-25 | 国家电网公司 | Model simulating crack fault of capacitive screen of oil-immersed inverted current transformer |
| CN102024557B (en) * | 2009-09-21 | 2015-09-16 | 江苏思源赫兹互感器有限公司 | Electronic current mutual inductor |
| CN105551783A (en) * | 2014-10-29 | 2016-05-04 | 江苏思源赫兹互感器有限公司 | Current transformer |
-
2003
- 2003-02-26 CN CN 03220111 patent/CN2620360Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1808646B (en) * | 2005-01-19 | 2010-10-13 | 江苏思源赫兹互感器有限公司 | Oil-immerged inversed current transformer |
| CN102024557B (en) * | 2009-09-21 | 2015-09-16 | 江苏思源赫兹互感器有限公司 | Electronic current mutual inductor |
| CN103811164A (en) * | 2012-11-07 | 2014-05-21 | 江苏思源赫兹互感器有限公司 | Current transformer |
| CN105551783A (en) * | 2014-10-29 | 2016-05-04 | 江苏思源赫兹互感器有限公司 | Current transformer |
| CN105551783B (en) * | 2014-10-29 | 2023-10-24 | 江苏思源赫兹互感器有限公司 | Current transformer |
| CN104376765A (en) * | 2014-11-11 | 2015-02-25 | 国家电网公司 | Model simulating crack fault of capacitive screen of oil-immersed inverted current transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU ABB JINGKE INSTRUMENT TRANSFORMERS COMPANY Free format text: FORMER OWNER: JIANGSU JINGKE SMART ELECTRIC CO., LTD. Effective date: 20121219 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU JINGKE SMART ELECTRIC CO., LTD. Free format text: FORMER NAME: JIANGSU JINGKE INSTRUMENT TRANSFORMER CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 223800, No. 9, Gucheng Road, Su Su Industrial Park, Jiangsu, Suqian Patentee after: JIANGSU JINGKE SMART ELECTRIC Co.,Ltd. Address before: 223800 Jiangsu city of Suqian Province Hua Lu Su Su Industrial Park No. 1 Patentee before: JIANGSU JINGKE INSTRUMENT TRANSFORMER Co.,Ltd. Address after: 223800 Jiangsu city of Suqian Province Hua Lu Su Su Industrial Park No. 1 Patentee after: JIANGSU JINGKE INSTRUMENT TRANSFORMER Co.,Ltd. Address before: 223800 Jiangsu Province, Suqian city the Yellow River Road No. 11 Jiangsu Jingke Transformer Co Ltd Patentee before: Jiangsu Jingke Instrument Transformer Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121219 Address after: 223800, No. 9, Gucheng Road, Su Su Industrial Park, Jiangsu, Suqian Patentee after: ABB Jiangsu Jingke Transformer Co.,Ltd. Address before: 223800, No. 9, Gucheng Road, Su Su Industrial Park, Jiangsu, Suqian Patentee before: JIANGSU JINGKE SMART ELECTRIC Co.,Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130226 Granted publication date: 20040609 |