CN101350247B - Outdoor dry-type voltage transformer for electric locomotive - Google Patents
Outdoor dry-type voltage transformer for electric locomotive Download PDFInfo
- Publication number
- CN101350247B CN101350247B CN2007100121561A CN200710012156A CN101350247B CN 101350247 B CN101350247 B CN 101350247B CN 2007100121561 A CN2007100121561 A CN 2007100121561A CN 200710012156 A CN200710012156 A CN 200710012156A CN 101350247 B CN101350247 B CN 101350247B
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- main body
- electric locomotive
- connection terminal
- primary
- voltage transformer
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 33
- 238000009413 insulation Methods 0.000 claims abstract description 27
- 238000004804 winding Methods 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003822 epoxy resin Substances 0.000 claims abstract description 6
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 6
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 13
- 239000002131 composite material Substances 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to an outdoor dry-type voltage transformer used for an electric locomotive, which comprises a main body which is composed of an iron core, a primary winding which is sheathed on the iron core, and a secondary winding, a primary wire connecting terminal, a secondary wire connecting terminal, a primary high-voltage insulation column which is sheathed outside of the primary wire connecting terminal, and a base, wherein the main body, the primary wire connecting terminal, the secondary wire connecting terminal and the primary high-voltage insulation column are fixedly installed on the base after forming a whole structure through adopting epoxide resin and silicon rubber for the composite insulation, wherein the primary high-voltage insulation column and the main body are in a cylindrical shape or an ellipsoidal shape, and the connection between the primary high-voltage insulation column and the main body is a spherical surface whose both sides are cut obliquely. The outdoor dry-type voltage transformer can prevent leaking oil and generating pollution flashover faults, and the invention has the advantages of stable insulation, fuse protection, long service life, small volume, convenient fixing, high mechanical strength, and wide application.
Description
Technical field
The present invention relates to a kind of voltage measuring apparatus, specifically a kind of outdoor dry-type voltage transformer for electric locomotive.
Background technology
Outdoor voltage transformer is the equipment of measuring voltage in the electric locomotive system, monitoring in real time or relaying protection, and the employed outdoor voltage transformer of electric locomotive roof is an oil immersed type at present, adopts the insulation of paper oil insulation and magnetic bottle.Because outdoor dynamic operation environment is comparatively abominable, seepage oil often appears in voltage transformer, and oil quality deterioration, magnetic bottle easily accumulate dirt and then pollution flashover voltage takes place, and need often safeguard and service work; In addition, product weight is heavy, and volume is big, installs inconveniently, and useful life is low etc., is puzzlement electric locomotive maintainer's a difficult problem all the time, also is the problem of the urgent solution of institute in electric locomotive production domesticization and the electrified development.
Summary of the invention
In order to solve the outdoor oil immersed type voltage transformer of existing electric locomotive easy to leak oil, oil quality deterioration, easily low, maintenance, repair of pollution flashover, useful life and problem such as complexity is installed, the object of the present invention is to provide a kind of for preventing oil seepage, the outdoor dry-type voltage transformer for electric locomotive that maintenance period is long, resistant is dodged, volume is little.
For achieving the above object, the technical solution used in the present invention is:
The present invention has by iron core, be sleeved on main body, primary connection terminal, secondary connection terminal that winding on the iron core and secondary winding form, be sheathed on the High-Voltage Insulation post and the base of primary connection terminal outer, main body, primary connection terminal, secondary connection terminal and High-Voltage Insulation post be whole to be adopted epoxy resin and silicon rubber compound inslation and is fixedly installed on the base after into a single integrated structure, wherein High-Voltage Insulation post and main body are cylindrical or elliptical cylinder-shape, and High-Voltage Insulation post and main body joint are the spheres of both sides through cutting sth. askew.
Described base is a disc, its size is corresponding with the installation site size that car locomotive top is reserved, radially be evenly distributed with a plurality of reinforcement gussets on it, be evenly equipped with installing hole in each first-class quantity of concentric circles of strengthening the base of gusset outer direction correspondence, the secondary connection terminal is located in the through hole of base; High-Voltage Insulation post and main body are evenly equipped with full skirt; After cutting sth. askew, the process of described sphere forms two inclined-planes that join; Be serially connected with fuse on the described secondary connection terminal.
The present invention has following beneficial effect and advantage:
1. prevent oil seepage, insulation is stable, can prevent the generation of pollution flashover fault.The present invention becomes totally-enclosed dry construction by epoxy resin with the silicon rubber compound inslation, has good hydrophobicity and sealing, has improved pollution flashover voltage widely, can prevent the generation of pollution flashover fault effectively; Creepage distance is big, guarantee that product has very big surface insulation, improve the stability of insulation greatly, thereby changed the outdoor oil immersed type voltage transformer of present electric locomotive seepage oil, oil quality deterioration, easy pollution flashover, maintenance and maintenance low present situation in complicated, useful life.
2. has the fuse protection.Secondary connection terminal position of the present invention is equipped with the fuse that is complementary with the secondary current capacity, effectively protects instrument transformer can not burn instrument transformer because of second short circuit;
3. maintenance period is long.The present invention adopts full-closed structure, can directly be installed on the electric locomotive top, has adopted spherical structure, effectively prevents sleet, water and dirt deposition, and maintenance period is long, simplifies the working strength of safeguarding and keeping in repair, and has prolonged maintenance period greatly.
Volume little, be convenient to install, the mechanical strength height.The present invention adopts epoxy resin and silicon rubber compound inslation and into a single integrated structure, and small product size is little, in light weight, and disc type base installation dimension cooperates fully with electric locomotive roof opening size, installs flexibly; Be provided with the reinforcement gusset, improved the stable degree of mechanical strength and installation, can guarantee effectively that product anti-vibrating and impact, fatigue strength in the electric locomotive dynamic running process are high.
5. applied widely.The present invention can be widely used in various model electric locomotives or newly design the model locomotive, can adapt to the needs of the electrified development of electric locomotive.
Description of drawings
Fig. 1 is an external structure front view of the present invention;
Fig. 2 is an external structure lateral plan of the present invention;
Fig. 3 is an external structure bottom view of the present invention;
Fig. 4 is an internal structure schematic diagram of the present invention.
Embodiment
As Fig. 1,2 and shown in Figure 4, structure of the present invention forms by following processing step, secondary winding 3 and winding 2 are concentric be set around on the insulation framework after, be sleeved on the stem of iron core 1, through being fixed in the casting mold after insulation and the buffering wrapping, behind epoxy resin and silicon rubber compound inslation, be seen as the integral structure of forming by primary connection terminal 5, High-Voltage Insulation post 4, main body 7 and a secondary connection terminal 9 from external structure, be cylindrical or elliptical cylinder-shape, to reduce the air frictional resistance of locomotive when advancing; Has the full skirt 6 that from top to bottom is evenly distributed on High-Voltage Insulation post 4 and the main body 7, the connecting position of High-Voltage Insulation post 4 and main body 7 carries out sphere 8 shapes of cutting sth. askew for twice and forming in the both sides, windward side, being seen as two from front view (Fig. 1) joins, inclined-plane 13 to the inboard depression, 14, this chamfered design considers that mainly the geomery of inner winding carries out for the uniform insulation layer, from external shape, reduce the air drag when advancing, help preventing rainwater in the electric locomotive running, the deposition of ice and snow and dirt has also been saved insulating material; Secondary outlet terminal 9 is in series with the fuse 10 that is complementary with the secondary current capacity, can effectively protect the present invention can not burn because of second short circuit; Last integral installation is on a disc-shaped base 11, its size is corresponding with the installation site size that car locomotive top is reserved, as shown in Figure 3, the radial direction of base 11 is evenly equipped with strengthens gusset 15 and installing hole 16, this installing hole 16 is circular, evenly be located on the concentric circles of base 11, corresponding with each reinforcement gusset 15 outer direction, this structure is convenient to the roof of integral installation in electric locomotive, the mechanical strength height can guarantee that product has enough vibratory impulse ability and fatigue resistance in the electric locomotive dynamic running process.
The present invention is a kind of new product that designs according to national standard and railway standard fully, adopts and rolls iron core, utilizes the electromagnetic conversion principle, makes secondary voltage can reflect the situation of change of primary voltage exactly, is transferred to the secondary control device; Product directly is installed in the electric locomotive circuit, carries out voltage measurement, also can be used as protective relaying device simultaneously and be connected with control system.
That the present invention is insulated is stable, good airproof performance, maintenance period is long, resistant is dodged, volume is little, simple in structure, totally-enclosed, can improve the reliability of power supply greatly, can be widely used in various model electric locomotives or newly design the model locomotive, realize the electric sequencing of electric locomotive electrical system, standardization, no oiling, production domesticization.
Claims (5)
1. outdoor dry-type voltage transformer for electric locomotive, have by iron core, be sleeved on the main body that winding on the iron core and secondary winding form, the primary connection terminal, the secondary connection terminal, be sheathed on the High-Voltage Insulation post and the base of primary connection terminal outer, it is characterized in that: main body (7), primary connection terminal (5), secondary connection terminal (9) and a High-Voltage Insulation post (4) be whole to be adopted epoxy resin and silicon rubber compound inslation and is fixedly installed in after into a single integrated structure on the base (11), wherein a High-Voltage Insulation post (4) and main body (7) are cylindrical or elliptical cylinder-shape, and a High-Voltage Insulation post (4) and main body (7) joint are the spheres (8) of both sides through cutting sth. askew.
2. by the described outdoor dry-type voltage transformer for electric locomotive of claim 1, it is characterized in that: described base (11) is disc, its size is corresponding with the installation site size that car locomotive top is reserved, radially be evenly distributed with a plurality of reinforcement gussets (15) on it, be evenly equipped with installing hole (16) in each first-class quantity of concentric circles of strengthening the base (11) of gusset (15) outer direction correspondence, secondary connection terminal (9) is located in the through hole of base (11).
3. by the described outdoor dry-type voltage transformer for electric locomotive of claim 1, it is characterized in that: a High-Voltage Insulation post (4) and main body (7) are evenly equipped with full skirt (6).
4. by the described outdoor dry-type voltage transformer for electric locomotive of claim 1, it is characterized in that: form two inclined-planes that join (13), (14) after the process of described sphere (8) is cut sth. askew.
5. by the described outdoor dry-type voltage transformer for electric locomotive of claim 1, it is characterized in that: be serially connected with fuse (10) on the described secondary connection terminal (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100121561A CN101350247B (en) | 2007-07-18 | 2007-07-18 | Outdoor dry-type voltage transformer for electric locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100121561A CN101350247B (en) | 2007-07-18 | 2007-07-18 | Outdoor dry-type voltage transformer for electric locomotive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101350247A CN101350247A (en) | 2009-01-21 |
| CN101350247B true CN101350247B (en) | 2010-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100121561A Active CN101350247B (en) | 2007-07-18 | 2007-07-18 | Outdoor dry-type voltage transformer for electric locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101350247B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065781A (en) * | 2013-01-28 | 2013-04-24 | 李丰良 | Mini voltage transformer |
| DE102017220779A1 (en) * | 2017-11-21 | 2019-05-23 | Siemens Aktiengesellschaft | Winding unit with trained on Supporters taps |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2503584Y (en) * | 2001-09-17 | 2002-07-31 | 大连金业电力设备有限公司 | 35 KV outdoor dry-type current transformer |
| CN2630068Y (en) * | 2003-05-12 | 2004-08-04 | 株洲时代集团公司 | Roof high voltage mutual inductor for electric locomotive and electric vehicle |
| EP1189249B1 (en) * | 2000-09-16 | 2005-11-16 | KG Ritz Messwandler GmbH & Co. | Explosion-proof voltage transformer |
| CN201048084Y (en) * | 2007-04-11 | 2008-04-16 | 大连北方互感器有限公司 | Outdoor dry type voltage mutual inductor for power car |
-
2007
- 2007-07-18 CN CN2007100121561A patent/CN101350247B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1189249B1 (en) * | 2000-09-16 | 2005-11-16 | KG Ritz Messwandler GmbH & Co. | Explosion-proof voltage transformer |
| CN2503584Y (en) * | 2001-09-17 | 2002-07-31 | 大连金业电力设备有限公司 | 35 KV outdoor dry-type current transformer |
| CN2630068Y (en) * | 2003-05-12 | 2004-08-04 | 株洲时代集团公司 | Roof high voltage mutual inductor for electric locomotive and electric vehicle |
| CN201048084Y (en) * | 2007-04-11 | 2008-04-16 | 大连北方互感器有限公司 | Outdoor dry type voltage mutual inductor for power car |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101350247A (en) | 2009-01-21 |
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Address after: 116203, Liaoning, Pulandian, Dalian Province Feng Rong office Dalian North Transformer Co., Ltd. Patentee after: DALIAN NORTH INSTRUMENT TRANSFORMER GROUP Co.,Ltd. Address before: 116203, Liaoning, Pulandian, Dalian Province Feng Rong office Dalian North Transformer Co., Ltd. Patentee before: Dalian North Transformer Co.,Ltd. |