CN201048084Y - Outdoor dry type voltage mutual inductor for power car - Google Patents
Outdoor dry type voltage mutual inductor for power car Download PDFInfo
- Publication number
- CN201048084Y CN201048084Y CNU2007200116253U CN200720011625U CN201048084Y CN 201048084 Y CN201048084 Y CN 201048084Y CN U2007200116253 U CNU2007200116253 U CN U2007200116253U CN 200720011625 U CN200720011625 U CN 200720011625U CN 201048084 Y CN201048084 Y CN 201048084Y
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- connection terminal
- main body
- primary
- base
- electric locomotive
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Abstract
The utility model relates to an outdoor dry-type pressure transformator for a power car, which has a main body consisting of an iron core and a primary winding and a second winding which are sleeved on the iron core, a primary connection terminal, a second connection terminal, and a primary high voltage insulating pole and a base which are sleeved outside the primary connection terminal. The main body, the primary connection terminal, and the primary high voltage insulating pole are compounded and insulated into an inter structure by adopting epoxide resin and silicon rubber, and then fixed on the base, wherein, the primary high voltage insulating pole and the main body are of round or elliptic cylinder shapes, and the connection of the primary high voltage insulating pole and the main body is a spherical surface with two sides being beveled. The utility model prevents the oil from leakage, has stabile insulating performance, avoids the occurrence of the flashing failure, and has the advantages of fuse protection, long maintenance period, small volume, convenient installation, high mechanical strength, and wide application range.
Description
Technical field
The utility model 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.
The utility model content
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, it is 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 that the purpose of this utility model is to provide.
For achieving the above object, the technical solution adopted in the utility model is:
The utlity model 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 utlity model has following beneficial effect and advantage:
1. prevent oil seepage, insulation is stable, can prevent the generation of pollution flashover fault.The utility model 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.The utility model secondary connection terminal position 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 utility model 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 utility model 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 utility model 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 the utility model external structure front view;
Fig. 2 is the utility model external structure lateral plan;
Fig. 3 is the utility model external structure bottom view;
Fig. 4 is the utility model internal structure schematic diagram.
Embodiment
As Fig. 1,2 and shown in Figure 4, the utility model structure 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 utility model 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 utility model 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.
The utility model insulation 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 |
|---|---|---|---|
| CNU2007200116253U CN201048084Y (en) | 2007-04-11 | 2007-04-11 | Outdoor dry type voltage mutual inductor for power car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200116253U CN201048084Y (en) | 2007-04-11 | 2007-04-11 | Outdoor dry type voltage mutual inductor for power car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201048084Y true CN201048084Y (en) | 2008-04-16 |
Family
ID=39300675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200116253U Expired - Lifetime CN201048084Y (en) | 2007-04-11 | 2007-04-11 | Outdoor dry type voltage mutual inductor for power car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201048084Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350247B (en) * | 2007-07-18 | 2010-09-08 | 大连北方互感器有限公司 | Outdoor dry-type voltage transformer for electric locomotive |
-
2007
- 2007-04-11 CN CNU2007200116253U patent/CN201048084Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350247B (en) * | 2007-07-18 | 2010-09-08 | 大连北方互感器有限公司 | Outdoor dry-type voltage transformer for electric locomotive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20080416 Effective date of abandoning: 20070411 |