CN202339777U - Harmonic elimination device for locomotive - Google Patents
Harmonic elimination device for locomotive Download PDFInfo
- Publication number
- CN202339777U CN202339777U CN2011204502634U CN201120450263U CN202339777U CN 202339777 U CN202339777 U CN 202339777U CN 2011204502634 U CN2011204502634 U CN 2011204502634U CN 201120450263 U CN201120450263 U CN 201120450263U CN 202339777 U CN202339777 U CN 202339777U
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- China
- Prior art keywords
- aluminium
- harmonic elimination
- locomotive
- insulated tube
- loam cake
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Abstract
The utility model discloses a harmonic elimination device for a locomotive, and relates to the field of electric locomotives. In the harmonic elimination device for the locomotive, provided by the utility model, a harmonic eliminator adopts silicon carbide with both excellent electrical performance and superfine particles as the base material, and is a rectangular or round-disk-shaped ring body with high-density, which has the advantages of small size, light weight, rapidness in heat dissipation, high strength and convenience in installation. The harmonic elimination device for the locomotive adopts a hollow cylindrical structure, an insulating tube and an insulating outer sleeve are arranged outside, heat dissipation holes are formed at the top and the bottom to naturally form convective air flues to facilitate heat dissipation and greatly increase the throughput. The harmonic eliminator and an aluminium upper cover are connected through a spring, so that favorable electric conductivity of the harmonic elimination device is ensured. Besides, ferromagnetic resonance caused by a transformer is eliminated or damped to avoid both insulation breakdown and discharge inside and outside the voltage transformer, and overcurrent flowing through the transformer winding is controlled when a power system is subjected to uniphase grounding or arc grounding, so that the voltage transformer is protected against burning, and arc short circuits caused by discharge of a pantograph or resonance generated by overvoltage is eliminated.
Description
Technical field
The utility model relates to the electric locomotive field, particularly a kind of locomotive harmonic elimination apparatus.
Background technology
Nonlinear resistance harmonic elimination lightning arrester (abbreviation harmonic elimination apparatus); Be mounted in the lightning-arrest device of a kind of nonlinear resistance harmonic elimination between electric locomotive transformer neutral point and the ground; It is a kind of high power capacity nonlinear resistor; The effect of damping and current limliting can be played, the effect of good deboost instrument transformer ferro resonance can be played.
In electric power system; Owing to the nonlinear inductance of voltage transformer and the coupling of line mutual-ground capacitor cause ferro-resonance over-voltage, the safe operation of direct threats electric power system can cause PT (Potential Transformer when serious; Voltage transformer) blast causes the accident.The traditional solution is at voltage transformer open delta two ends and connects a resistance, and the ferro resonance low more to frequency, and the resistance of the resistance that connects should obtain more little;
But in the process that realizes the utility model, the inventor finds that there is following problem at least in existing harmonic elimination method:
When and the resistance of the resistance that connects too hour, on the PT open delta, can influence the normal operation of electric power system, can cause PT to burn when serious, the frequency because of ferro resonance often is not single in addition, so this method just is difficult to eliminate the resonance of all frequencies.
The utility model content
In order to solve the problem that existing harmonic elimination mode exists, the utility model provides a kind of locomotive harmonic elimination apparatus.Said technical scheme is following:
A kind of locomotive harmonic elimination apparatus, said locomotive harmonic elimination apparatus comprises: aluminium electric contact (1), aluminium loam cake (2), a plurality of soket head cap screw (3), spring (4), insulated tube (5), resonance eliminator (6), insulating coating (7), aluminium following (8), fixed head (9) and a plurality of set bolt (10);
Wherein, Said resonance eliminator (6) is processed by carborundum; For density greater than the rectangle of preset value or the ring body of round pie, the lower end of said resonance eliminator (6) is fixed on the said fixed head (9) through said set bolt (10), and said resonance eliminator (6) is built among the said insulated tube (5);
Said insulated tube (5) places between said aluminium loam cake (2) and the aluminium following (8); Said insulated tube (5) outside is with said insulating coating (7); Has the space between said resonance eliminator (6) and the said insulated tube (5); And said aluminium loam cake (2) and aluminium following (8) all have louvre, so that form the convection current air channel;
Said aluminium loam cake (2) is fixed in the port of said insulated tube (5) through said soket head cap screw (3); And said aluminium loam cake (2) is equipped with said spring (4) with the junction of said insulated tube (5), and said aluminium electric contact (1) is fixed in the top of said aluminium loam cake (2) through said set bolt (10);
Said aluminium following (8) is fixed on the said fixed head (9) through said soket head cap screw (3).
Further, said insulating coating (7) is the silastic material of a plurality of umbrellas, and is surrounded on said insulated tube (5) from top to bottom.
Further, said set bolt (10) comprising: screw (11), bullet pad (12) and nut (13).
Further, said set bolt (10) comprising: screw (11), bullet pad (12), nut (13) and plain cushion (14).
Further, the both sides of said spring (4) are wound with the copper conductive strips.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is: can eliminate or ferro resonance that damping is caused by transformer; Avoid the inside and outside insulation breakdown of voltage transformer, discharge; The overcurrent of instrument transformer winding is flow through in the restriction electric power system when single-phase earthing or arc grounding; Avoid voltage transformer to burn, eliminate the resonance that the pantograph discharge causes that arc short-circuit or overvoltage produce.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the sketch map of the structure of the locomotive harmonic elimination apparatus that provides among the utility model embodiment;
Fig. 2 is the sketch map of structure of the set bolt of the locomotive harmonic elimination apparatus kind that provides among the utility model embodiment;
Copper conductive strips in the locomotive harmonic elimination apparatus that provides among Fig. 3 the utility model embodiment twine sketch map;
Wherein, in above-mentioned accompanying drawing, the represented assembly of label is following:
1 aluminium electric contact; 2 aluminium loam cakes; 3 soket head cap screws; 4 springs; 5 insulated tubes; 6 harmonic elimination apparatus; 7 insulating coatings; Following of 8 aluminium; 9 fixed heads; 10 set bolts; 11 screws; 12 bullet pads; 13 nuts; 14 plain cushions.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model execution mode is done to describe in detail further below.
As shown in Figure 1; The utility model embodiment provides a kind of locomotive harmonic elimination apparatus, and this device comprises: aluminium electric contact (1), aluminium loam cake (2), a plurality of soket head cap screw (3), spring (4), insulated tube (5), resonance eliminator (6), insulating coating (7), aluminium following (8), fixed head (9) and a plurality of set bolt (10);
Wherein, resonance eliminator (6) is processed by carborundum, for density greater than the rectangle of preset value or the ring body of round pie, the lower end of resonance eliminator (6) is fixed on the fixed head (9) through set bolt (10), and resonance eliminator (6) is built among the insulated tube (5);
Insulated tube (5) places between aluminium loam cake (2) and the aluminium following (8), and insulated tube (5) outside is with insulating coating (7), has the space between resonance eliminator (6) and the insulated tube (5), and aluminium loam cake (2) and aluminium following (8) all has louvre, so that formation convection current air channel;
Aluminium loam cake (2) is fixed in the port of insulated tube (5) through soket head cap screw (3), and the junction of aluminium loam cake (2) and insulated tube (5) is equipped with spring (4), and aluminium electric contact (1) is fixed in the top of aluminium loam cake (2) through set bolt (10);
Aluminium following (8) is fixed on the fixed head (9) through soket head cap screw (3).
In the present embodiment, the height H of locomotive harmonic elimination apparatus is 350 millimeters, and the diameter L of fixed head (9) is 280 millimeters.Wherein, the diameter of aluminium electric contact (1) is 40 millimeters, and aluminium loam cake (2) diameter is 140 millimeters, and insulated tube (5) diameter is 112 millimeters, and following (8) diameter of aluminium is 190 millimeters.
Need to prove; In the present embodiment, it is base material that resonance eliminator (6) adopts the carborundum of electric property excellence, ultra-fine grain, is pressed into the ring body of highdensity rectangle or round pie through the large-tonnage press; Under reducing atmosphere, form through the high temperature sintering of thousands of degree.Exposed resistor surface structure can stand to expose to the sun and rain through special processing, and it is inside and outside directly to be used for the family.Its volume is little, in light weight, rapid heat dissipation, intensity high, be convenient to install.
In the present embodiment, preset value is specially (3.06-3.2g/cm
3), promptly resonance eliminator (6) is processed by carborundum, and density is greater than (3.06-3.2g/cm
3) rectangle or the ring body of round pie.
Further, insulating coating (7) is the silastic material of a plurality of umbrellas, and is surrounded on insulated tube (5) from top to bottom.
Further, set bolt (10) comprising: screw (11), bullet pad (12) and nut (13).
Further, as shown in Figure 2, set bolt (10) comprising: screw (11), bullet pad (12), nut (13) and plain cushion (14).
Further, the both sides of spring (4) are wound with the copper conductive strips.Wherein, as shown in Figure 3, the wide diameter φ 1 of the winding of copper conductive strips is 45 millimeters, and copper conductive strips diameter phi 1 is 3.2 millimeters, and the coiling length M of copper conductive strips is 60 millimeters, the copper conductive strips when twining, two circle copper conductive strips be 15 millimeters apart from N.
It is base material that the locomotive harmonic elimination apparatus that the utility model provided, resonance eliminator adopt the carborundum of electric property excellence, ultra-fine grain, is the ring body of highdensity rectangle or round pie; Volume is little, in light weight, rapid heat dissipation, intensity high, be convenient to install, and the locomotive harmonic elimination apparatus adopts hollow cylindrical structure, and insulated tube, insulating coating are adopted in the outside; Open louvre up and down; Naturally form the convection current air channel, be beneficial to heat radiation, increase through-current capacity greatly.Adopt following of aluminium loam cake and aluminium, connect with spring between resonance eliminator and the aluminium loam cake, guaranteed the harmonic elimination apparatus excellent conducting performance.And can eliminate or ferro resonance that damping is caused by transformer; Avoid the inside and outside insulation breakdown of voltage transformer, discharge; The overcurrent of instrument transformer winding is flow through in the restriction electric power system when single-phase earthing or arc grounding; Avoid voltage transformer to burn, eliminate the resonance that the pantograph discharge causes that arc short-circuit or overvoltage produce.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (5)
1. locomotive harmonic elimination apparatus; It is characterized in that said locomotive harmonic elimination apparatus comprises: aluminium electric contact (1), aluminium loam cake (2), a plurality of soket head cap screw (3), spring (4), insulated tube (5), resonance eliminator (6), insulating coating (7), aluminium following (8), fixed head (9) and a plurality of set bolt (10);
Wherein, Said resonance eliminator (6) is processed by carborundum; For density greater than the rectangle of preset value or the ring body of round pie, the lower end of said resonance eliminator (6) is fixed on the said fixed head (9) through said set bolt (10), and said resonance eliminator (6) is built among the said insulated tube (5);
Said insulated tube (5) places between said aluminium loam cake (2) and the aluminium following (8); Said insulated tube (5) outside is with said insulating coating (7); Has the space between said resonance eliminator (6) and the said insulated tube (5); And said aluminium loam cake (2) and aluminium following (8) all have louvre, so that form the convection current air channel;
Said aluminium loam cake (2) is fixed in the port of said insulated tube (5) through said soket head cap screw (3); And said aluminium loam cake (2) is equipped with said spring (4) with the junction of said insulated tube (5), and said aluminium electric contact (1) is fixed in the top of said aluminium loam cake (2) through said set bolt (10);
Said aluminium following (8) is fixed on the said fixed head (9) through said soket head cap screw (3).
2. locomotive harmonic elimination apparatus according to claim 1 is characterized in that, said insulating coating (7) is the silastic material of a plurality of umbrellas, and is surrounded on said insulated tube (5) from top to bottom.
3. locomotive harmonic elimination apparatus according to claim 1 is characterized in that, said set bolt (10) comprising: screw (11), bullet pad (12) and nut (13).
4. locomotive harmonic elimination apparatus according to claim 1 is characterized in that, said set bolt (10) comprising: screw (11), bullet pad (12), nut (13) and plain cushion (14).
5. locomotive harmonic elimination apparatus according to claim 1 is characterized in that, the both sides of said spring (4) are wound with the copper conductive strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204502634U CN202339777U (en) | 2011-11-15 | 2011-11-15 | Harmonic elimination device for locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204502634U CN202339777U (en) | 2011-11-15 | 2011-11-15 | Harmonic elimination device for locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202339777U true CN202339777U (en) | 2012-07-18 |
Family
ID=46488467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204502634U Expired - Fee Related CN202339777U (en) | 2011-11-15 | 2011-11-15 | Harmonic elimination device for locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202339777U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107680760A (en) * | 2017-08-30 | 2018-02-09 | 滁州市西控电子有限公司 | A kind of harmonic elimination apparatus data acquisition module |
-
2011
- 2011-11-15 CN CN2011204502634U patent/CN202339777U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107680760A (en) * | 2017-08-30 | 2018-02-09 | 滁州市西控电子有限公司 | A kind of harmonic elimination apparatus data acquisition module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20131115 |