CN205583369U - Urban rail transit is insulator voltage limiter for contact net - Google Patents
Urban rail transit is insulator voltage limiter for contact net Download PDFInfo
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- CN205583369U CN205583369U CN201620260617.1U CN201620260617U CN205583369U CN 205583369 U CN205583369 U CN 205583369U CN 201620260617 U CN201620260617 U CN 201620260617U CN 205583369 U CN205583369 U CN 205583369U
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- urban rail
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Abstract
The utility model relates to an urban rail transit is insulator voltage limiter for contact net, its characterized in that: as an organic wholeization of voltage limiter, it includes insulator frp rod (5), insulator frp rod (5) both ends are connected first gold utensil (1) and second gold utensil (14) that can bear the mechanical force respectively and are linked to each other, insulator frp rod (5) outside sets up one voltage limiting component (4), voltage limiting component (4) are connected with first gold utensil (1), voltage limiting component (4) outside sets up equalizer ring (3), form between equalizer ring (3) and second gold utensil (14) discharge gap (13), first gold utensil (1), second gold utensil (14), integrative back outside cladding composite covering (2) is made up with voltage limiting component (4) in insulator frp rod (5). The utility model relates to a collecting and supporting wire and lightning protection in the product of an organic whole, the series connection air gap distance of just discharging is fixed, but the one -time Setup shaping, simple structure, simple to operate, small in size, light in weight, it is with low costs.
Description
Technical field
This utility model relates to a kind of voltage limiter, particularly to a kind of urban rail transit contact network insulator voltage limiter, is particularly well-suited on urban rail transit elevated circuit.
Background technology
Urban track traffic is fast-developing, and circuit is the most intensive, and elevated line is gradually increased.Tractive power supply system is the important system in railway traffic engineering, and function is to vehicle reliable power supply.The apparatus insulated level of tractive power supply system is the lowest, it is difficult to resist lightning surge, all there occurs more Lightning Disaster in the many engineerings put into operation, and causes contact net insulator or traction substation equipment to damage, even affects driving.On urban rail transit elevated circuit, the Lightning Disaster of tractive power supply system is more, loses bigger.At present, the whole nation has been put into operation in urban rail engineering, and lightning protection method is less and function imperfection, can not meet the requirement that modern urban rail system high reliability is run.
Utility model content
Problem to be solved in the utility model is: provide one can overcome drawbacks described above, lightning fault probability that city rail handing-over touch net can be greatly lowered, prevent the insulator arc-over that thunderbolt circuit causes, reduce the line tripping rate that thunderbolt causes, improve the lightning protection level of urban rail transit contact network, replace the urban rail transit contact network insulator voltage limiter that the bracket insulator in current urban rail transit contact network and the insulator that casts anchor use, it i.e. possesses the function that insulator supports or connects, the effect of spark gap can be played again, it is particularly well-suited to existing urban rail catenary traffic system.
This utility model solves its technical problem integrated voltage limiter of the technical scheme is that voltage limiter, it includes insulation mandrel, insulation mandrel two ends connect respectively can bear the first gold utensil of mechanical force and the second gold utensil is connected, one voltage-limiting element is set outside insulation mandrel, voltage-limiting element and the first gold utensil are connected, grading ring is set outside voltage-limiting element, forming discharging gap between grading ring and the second gold utensil, the first gold utensil, the second gold utensil, insulation mandrel and voltage-limiting element are combined into one rear outside covered composite yarn overcoat.
First gold utensil, wherein one end of the second gold utensil are hatch frame, and the other end is monaural structure.Hatch frame is connected with urban rail transit contact network bracket, and monaural structure is connected with urban rail transit contact network cantilever base, and current urban rail transit contact network bracket insulator can be replaced to use.
First gold utensil, the second gold utensil attachment structure use monaural structure.Use urban rail transit contact network insulator two ends gold utensil attachment structure of casting anchor, use monaural structure that the current urban rail transit contact network insulator that casts anchor can be replaced to use.
Described voltage-limiting element includes the upper connection electrode being sequentially connected with, zinc oxide resistance sheet, bottom electrode, also include plastic barrel, plastic barrel is by upper connection electrode, zinc oxide resistance sheet, is socketed on insulation mandrel after bottom electrode fixed Combination is integral, and wherein voltage-limiting element is connected by upper connection electrode and the first gold utensil.
Described voltage-limiting element is connected by plastic barrel and the first gold utensil, and upper connection electrode is connected sheet and is connected with enumerator, and enumerator connects sheet and realizes electrical connection with voltage-limiting element.
The structure length of described integrated voltage limiter is between 200-800mm, and maximum outside diameter size is between 100-300mm.
Owing to series gap is isolated, voltage limiter body is not subject to system dc working voltage；Under the sufficiently high induced lightening of amplitude or direct lightning strike overvoltage effect, voltage limiter body is Low ESR, series gap is breakdown, and thunder energy is discharged by resistor disc, leaks into the earth, after lightning impulse, the voltage being applied to voltage limiter body two ends is system working voltage, and body is high impedance, and direct current afterflow electric arc extinguished within the extremely short time, the air gap insulation recovers rapidly, and circuit returns to normal operating condition.
This utility model is had the beneficial effect that
1, avoiding the problem that existing spark gap and insulator partial installation are brought, electric discharge of the present utility model series connection air gap distance is fixed, can once mounting molding, easy for installation, maintenance cost is low.
2, avoid existing portable protective gaps and can not stop the defect of line tripping, and easy for installation.
3, voltage-limiting element and insulation column Integral mold pressing formation, simple in construction, easy for installation, volume is little, and expense is low.
Accompanying drawing explanation
Fig. 1 is the structural representation that this utility model can replace that bracket insulator uses；
Fig. 2 is that this utility model can replace casting anchor the structural representation that insulator uses；
Fig. 3 is the structural representation that this utility model can replace that bracket insulator uses and can be connected with enumerator；
Fig. 4 is that this utility model can replace casting anchor the structural representation that insulator uses and can be connected with enumerator；
Fig. 5 is a kind of integrative-structure figure molding front integration voltage limiter；
Fig. 6 is opening gold utensil one structure chart；
Fig. 7 is monaural gold utensil one structure chart；
Fig. 8 is pressure limiting component structure figure；
Fig. 9 is the structural representation that voltage-limiting element removes plastic barrel；
Wherein the 1, first gold utensil；2, composite sheath；3, grading ring；4, voltage-limiting element；5, insulation mandrel；6, hatch frame gold utensil；7, monaural structure gold utensil；8, plastic barrel；9, upper connection electrode；10, zinc oxide resistance sheet；11, bottom electrode；12, enumerator connects sheet；13, discharging gap；14, the second gold utensil.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiment of the present utility model is described further:
Embodiment 1:
As Figure 1-Figure 2, urban rail transit contact network insulator voltage limiter described in the utility model, including insulation mandrel 5, insulation mandrel 5 two ends and the first gold utensil 1 bearing mechanical force, second gold utensil 14 is connected, one voltage-limiting element 4 is set outside insulation mandrel 5, voltage-limiting element 4 is connected with the first gold utensil 1, grading ring 3 is set outside voltage-limiting element 4, forming discharging gap 13 between grading ring 3 and the second gold utensil 14, first gold utensil the 1, second gold utensil 14, insulation mandrel 5 and voltage-limiting element 4 are combined into one rear outside covered composite yarn overcoat 2.
In Fig. 1, first gold utensil the 1, second gold utensil 14 attachment structure uses urban rail transit contact network bracket insulator two ends gold utensil attachment structure, its first gold utensil 1 is hatch frame, it is connected with urban rail transit contact network high-pressure side, second gold utensil 14 is monaural structure, it is connected with urban rail transit contact network pillar and is connected, current urban rail transit contact network bracket insulator can be replaced to use.
In Fig. 2, first gold utensil the 1, second gold utensil 14 attachment structure uses urban rail transit contact network insulator two ends gold utensil attachment structure of casting anchor, use monaural structure gold utensil 7, first gold utensil 1 is connected with contact net high-pressure side, second gold utensil 14 is connected with low-pressure side, and the current urban rail transit contact network insulator that casts anchor can be replaced to use.
Voltage-limiting element 4 is made up of upper connection electrode 9, zinc oxide resistance sheet 10, bottom electrode 11 and plastic barrel 8, plastic barrel 8 is by upper connection electrode 9, zinc oxide resistance sheet 10, bottom electrode 11 is socketed in after being combined into one on insulation mandrel 5, and wherein voltage-limiting element 4 is connected with gold utensil by upper connection electrode 9.Discharge loop is formed by gold utensil.
The structure length of integration voltage limiter is between 200-800mm, and maximum outside diameter size is between 100-300mm.
Embodiment 2:
As Figure 3-Figure 4, urban rail transit contact network insulator voltage limiter described in the utility model, including insulation mandrel 5, insulation mandrel 5 two ends and the first gold utensil 1 bearing mechanical force, the second gold utensil 14 is connected, and arranges a voltage-limiting element 4 outside insulation mandrel 5, voltage-limiting element 4 is connected with gold utensil, arranging grading ring 3 outside voltage-limiting element 4, form discharging gap 13 between grading ring 3 and gold utensil, two ends gold utensil, insulation mandrel 5 and voltage-limiting element 4 are combined into one rear outside covered composite yarn overcoat 2.
In Fig. 3, first gold utensil the 1, second gold utensil 14 attachment structure uses urban rail transit contact network bracket insulator two ends gold utensil attachment structure, first gold utensil 1 is hatch frame, it is connected with urban rail transit contact network bracket, second gold utensil 14 is monaural structure, it is connected with urban rail transit contact network cantilever base, current urban rail transit contact network bracket insulator can be replaced to use.
In Fig. 4, first gold utensil the 1, second gold utensil 14 attachment structure uses urban rail transit contact network insulator two ends gold utensil attachment structure of casting anchor, and uses monaural structure, and the current urban rail transit contact network insulator that casts anchor can be replaced to use.
Voltage-limiting element 4 is by upper connection electrode 9, zinc oxide resistance sheet 10, bottom electrode 11 and plastic barrel 8 form, plastic barrel 8 is by upper connection electrode 9, zinc oxide resistance sheet 10, bottom electrode 11 is socketed in after being combined into one on insulation mandrel 5, voltage-limiting element 4 is connected with gold utensil by insulated plastic barrel 8, cut off the loop formed by gold utensil, upper connection electrode 9 is connected sheet 12 and is connected with enumerator, enumerator connects sheet 12 and realizes electrical connection with voltage-limiting element 4, and enumerator is connected sheet 12 and is connected with enumerator by wire, it is achieved the tally function of integration voltage limiter.
The structure length of integration voltage limiter is between 200-800mm, and maximum outside diameter size is between 100-300mm.
Operation principle of the present utility model:
Described urban rail transit contact network insulator voltage limiter, when system is properly functioning, owing to series gap is isolated, voltage-limiting element is not subject to system working voltage.Under the sufficiently high induced lightening of amplitude or direct lightning strike overvoltage effect, voltage-limiting element is Low ESR, series gap is breakdown, thunder energy is discharged by valve block post, after lightning impulse, the voltage being applied to voltage-limiting element body two ends is system working voltage, and body is high impedance, the air gap insulation recovers rapidly, and circuit returns to normal operating condition.
This utility model is not only able to play bracket insulator and the effect of the insulator that casts anchor, voltage-limiting element can also be utilized to improve the lightning protection level of circuit, it it is a kind of product integrating and supporting wire with lightning protection, and electric discharge series connection air gap distance fix, can once mounting molding, simple in construction, easy for installation, compact, lightweight, low cost.
Claims (6)
1. a urban rail transit contact network insulator voltage limiter, it is characterized in that: the integrated voltage limiter of voltage limiter, it includes insulation mandrel (5), insulation mandrel (5) two ends connect respectively can bear first gold utensil (1) of mechanical force and be connected with the second gold utensil (14), insulation mandrel (5) outside arranges a voltage-limiting element (4), voltage-limiting element (4) is connected with the first gold utensil (1), voltage-limiting element (4) outside arranges grading ring (3), discharging gap (13) is formed between grading ring (3) and the second gold utensil (14), first gold utensil (1), second gold utensil (14), insulation mandrel (5) and voltage-limiting element (4) are combined into one rear outside covered composite yarn overcoat (2).
Urban rail transit contact network insulator voltage limiter the most according to claim 1, it is characterised in that: the first gold utensil (1), wherein one end of the second gold utensil (14) are hatch frame, and the other end is monaural structure.
Urban rail transit contact network insulator voltage limiter the most according to claim 1, it is characterised in that the first gold utensil (1), the second gold utensil (14) attachment structure use monaural structure.
Urban rail transit contact network insulator voltage limiter the most according to claim 1, it is characterized in that: described voltage-limiting element (4) includes the upper connection electrode (9) being sequentially connected with, zinc oxide resistance sheet (10), bottom electrode (11), also include plastic barrel (8), plastic barrel (8) is by upper connection electrode (9), zinc oxide resistance sheet (10), it is socketed in after bottom electrode (11) fixed Combination is integral on insulation mandrel (5), wherein voltage-limiting element (4) is connected with the first gold utensil (1) by upper connection electrode (9).
Urban rail transit contact network insulator voltage limiter the most according to claim 4, it is characterized in that: described voltage-limiting element (4) is connected with the first gold utensil (1) by plastic barrel (8), upper connection electrode (9) is connected sheet (12) and is connected with enumerator, and enumerator connects sheet (12) and realizes electrical connection with voltage-limiting element (4).
Urban rail transit contact network insulator voltage limiter the most according to claim 1, it is characterised in that: the structure length of described integrated voltage limiter is between 200-800mm, and maximum outside diameter size is between 100-300mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620260617.1U CN205583369U (en) | 2016-03-31 | 2016-03-31 | Urban rail transit is insulator voltage limiter for contact net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620260617.1U CN205583369U (en) | 2016-03-31 | 2016-03-31 | Urban rail transit is insulator voltage limiter for contact net |
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| Publication Number | Publication Date |
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| CN205583369U true CN205583369U (en) | 2016-09-14 |
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| CN201620260617.1U Active CN205583369U (en) | 2016-03-31 | 2016-03-31 | Urban rail transit is insulator voltage limiter for contact net |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790074A (en) * | 2016-03-31 | 2016-07-20 | 山东迅实电气有限公司 | Insulator voltage limiter for urban mass transit overhead contact system |
-
2016
- 2016-03-31 CN CN201620260617.1U patent/CN205583369U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790074A (en) * | 2016-03-31 | 2016-07-20 | 山东迅实电气有限公司 | Insulator voltage limiter for urban mass transit overhead contact system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180205 Address after: 255086, Shandong province high tech Zone, Zibo North Road Advanced Manufacturing Industry Innovation Park No. 11 Co-patentee after: China Railway Electrification Survey Design & Research Institute Co., Ltd. Patentee after: Shandong Xunshi Electric Co., Ltd. Address before: 255086, Shandong province high tech Zone, Zibo North Road Advanced Manufacturing Industry Innovation Park No. 11 Co-patentee before: Zibo Yiyuan Electric Power Technology Co., Ltd. Patentee before: Shandong Xunshi Electric Co., Ltd. Co-patentee before: China Railway Electrification Survey Design & Research Institute Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190117 Address after: 255086 Advanced Manufacturing Industry Innovation Park No. 11, Huabei Road, Zibo High-tech Zone, Shandong Province Co-patentee after: Tianjin railway electrification design and Research Institute Co Ltd Patentee after: Shandong Xunshi Electric Co., Ltd. Address before: 255086 Advanced Manufacturing Industry Innovation Park No. 11, Huabei Road, Zibo High-tech Zone, Shandong Province Co-patentee before: China Railway Electrification Survey Design & Research Institute Co., Ltd. Patentee before: Shandong Xunshi Electric Co., Ltd. |