CN201804645U - Ball-electrode lightning arrester for urban rail transit contact system - Google Patents
Ball-electrode lightning arrester for urban rail transit contact system Download PDFInfo
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- CN201804645U CN201804645U CN2010205445850U CN201020544585U CN201804645U CN 201804645 U CN201804645 U CN 201804645U CN 2010205445850 U CN2010205445850 U CN 2010205445850U CN 201020544585 U CN201020544585 U CN 201020544585U CN 201804645 U CN201804645 U CN 201804645U
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- lightning arrester
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- plate electrode
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Abstract
A ball-electrode lightning arrester for an urban rail transit contact system comprises an insulator, and is characterized by further comprising a lightning arrester body, a mounting board component, a plate electrode component, a ball electrode and a plate electrode. The lightning arrester body is mounted on the mounting board component which is fixed on the high-voltage side of the insulator, the ball electrode is mounted on the lightning arrester body, the plate electrode is mounted on the plate electrode component which is fixed on the low-voltage side of the insulator, and air gaps are formed between the plate electrode and the ball electrode. As the series gaps are capable of isolating working voltage of the contact system, the lightning arrester body is almost free of loading working voltage of the system when in normal working condition, the lightning arrester acts under pressure only when the gaps are broken through by lightning overvoltage, and the problem of ageing due to the fact that valve discs of the lightning arrester are stressed with working voltage for a long time is reduced. Therefore, the ball-electrode lightning arrester has the technical advantages of long service life, high reliability and zero maintenance.
Description
Technical field
The utility model relates to a kind of lightning arrester, particularly a kind of urban track traffic contact line bulb electrode lightning arrester.
Background technology
Urban track traffic fast development, circuit are intensive day by day, and elevated line increases gradually.Tractive power supply system is the important system in the railway traffic engineering, and function is reliably to power to vehicle.The apparatus insulated level of tractive power supply system is very low, is difficult to resist lightning overvoltage, and more thunder and lightning disaster has all taken place in the many engineerings that put into operation, and causes contact line insulator or traction substation equipment to damage, even the influence driving.On the urban track traffic elevated line, the thunder and lightning disaster of tractive power supply system is more, loses bigger.At present, put into operation in the rail engineering of city in the whole nation, only reduces the lightning stroke flashover accident probability by lightning conducter is installed, and do not see the research report of other lightning protection measure.The lightning protection means are single, the function imperfection, can not satisfy the requirement of modern city rail system high reliability operation.
The utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of and can overcome above-mentioned defective, can reduce the lightning fault probability that the city rail handing-over is touched net significantly, the insulator arc-over that the circuit that prevents to be struck by lightning causes, reduce the line tripping rate that thunderbolt causes, improve the lightning protection level of urban track traffic contact line.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of urban track traffic contact line bulb electrode lightning arrester, comprise insulator, it is characterized in that: also comprise lightning arrester body, the mounting panel assembly, the plate electrode assembly, bulb electrode and plate electrode, lightning arrester body is installed on the mounting panel assembly, the mounting panel assembly is fixed on the insulator high-pressure side, the bulb electrode is installed on the lightning arrester body, plate electrode is installed on the plate electrode assembly, the plate electrode assembly is fixed on the insulator low-pressure side, forms the air gap between plate electrode and the bulb electrode.
Described plate electrode assembly comprises first anchor ear, first screw rod and first nut, and first anchor ear is fixedlyed connected with plate electrode, and first screw rod is arranged on the both sides of first anchor ear, and first nut is arranged on first screw rod.
Described mounting panel assembly comprises flanged plate, second anchor ear, second screw rod and second nut, flanged plate one end is provided with the circular hole that is connected with lightning arrester body, flanged plate is connected with second anchor ear, and second screw rod is arranged on second anchor ear, and second nut is arranged on second screw rod.
Described bulb electrode is a hemisphere, and inside is provided with reinforcement, and central spot is provided with screwed hole.
Distance between described bulb electrode and the plate electrode is 20～200mm.
When system normally moved, because series gap is isolated, lightning arrester body did not bear system's DC operation voltage; Under sufficiently high induction thunder of amplitude or the effect of direct lightning strike overvoltage, lightning arrester body is Low ESR, and series gap is breakdown, and the thunder and lightning energy discharges by resistor disc, has limited the overvoltage at insulator two ends, prevents the discharge of insulator edge flashing; After the lightning impulse, the voltage that is applied to the lightning arrester body two ends is system's working voltage, and body is high impedance, and direct current afterflow electric arc extinguished in the extremely short time, and the air gap insulation recovers rapidly, and circuit is got back to normal operating condition.
Lightning arrester body adopts known frame mode, and inside does not have cavity, avoids bringing moisture into product inside because of respiration.
The beneficial effect that the utility model had is:
1) because series gap has the effect of isolating the contact line operating voltage, lightning arrester body body under nominal situation bears system's working voltage hardly, only just withstand voltage action of lightning arrester after lightning overvoltage punctures the gap, reduce arrester valve piece made owing to bearing the aging problem that operating voltage is brought for a long time, therefore had the technical characterstic that the life-span is long, reliability is high, non-maintaining.
2) external insulation can be installed the known technology mode and adopt the one-shot forming composite sheath, and lightning arrester is in light weight, and is easy for installation.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model plate electrode modular construction schematic diagram;
Fig. 3 is the utility model mounting panel modular construction schematic diagram;
Fig. 4 is a bulb electrode structure schematic diagram;
Wherein: 1, insulator; 2, first anchor ear; 3, second anchor ear; 4, second nut; 5, second screw rod; 6, flanged plate; 7, lightning arrester body; 8, bulb electrode; 9, plate electrode; 10, first screw rod; 11, first nut; 12, circular hole; 13, reinforcement; 14, screwed hole;
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
As Fig. 1～shown in Figure 4, a kind of urban track traffic contact line bulb electrode lightning arrester, comprise insulator 1, also comprise lightning arrester body 7, mounting panel assembly, plate electrode assembly, bulb electrode 8 and plate electrode 9, lightning arrester body is installed on the mounting panel assembly, the mounting panel assembly is fixed on insulator 1 high-pressure side, bulb electrode 9 is installed on the lightning arrester body 7, plate electrode 9 is installed on the plate electrode assembly, the plate electrode assembly is fixed on insulator 1 low-pressure side, forms the air gap between plate electrode 9 and the bulb electrode 8.
Described plate electrode assembly comprises that first anchor ear 2, first screw rod 10 and first nut, 11, the first anchor ears 2 fixedly connected with plate electrode 9, and first screw rod 10 is arranged on the both sides of first anchor ear 2, and first nut 11 is arranged on first screw rod 10.
Described mounting panel assembly comprises flanged plate 6, second anchor ear 3, second screw rod 5 and second nut 4, flanged plate 6 one ends are provided with the circular hole 12 that is connected with lightning arrester body 7, flanged plate 6 is connected with second anchor ear 3, second screw rod 5 is arranged on that 3, the second nuts 4 are arranged on second screw rod 5 on second anchor ear.
Described bulb electrode 8 is a hemisphere, and inside is provided with reinforcement 13, and central spot is provided with screwed hole 14.
Distance between described bulb electrode 8 and the plate electrode 9 is 20～200mm.
When system normally moved, because series gap is isolated, lightning arrester body 7 did not bear system's DC operation voltage; Under sufficiently high induction thunder of amplitude or the effect of direct lightning strike overvoltage, lightning arrester body 7 is Low ESR, and series gap is breakdown, and the thunder and lightning energy discharges by resistor disc, has limited the overvoltage at insulator two ends, prevents the discharge of insulator edge flashing; After the lightning impulse, the voltage that is applied to lightning arrester body 7 two ends is system's working voltage, and body is high impedance, and direct current afterflow electric arc extinguished in the extremely short time, and the air gap insulation recovers rapidly, and circuit is got back to normal operating condition.
By a large amount of lightning impulse discharge tests; verified that under different steepness lightning overvoltages, flashover path all occurs on the series gap when the series gap distance accounts for the 20%-70% of insulator 1 insulation distance; the lightning arrester reliable in action can effectively protect insulated conductor to avoid damaging.
Claims (5)
1. urban track traffic contact line bulb electrode lightning arrester, comprise insulator, it is characterized in that: also comprise lightning arrester body, mounting panel assembly, plate electrode assembly, bulb electrode and plate electrode, lightning arrester body is installed on the mounting panel assembly, the mounting panel assembly is fixed on the insulator high-pressure side, the bulb electrode is installed on the lightning arrester body, plate electrode is installed on the plate electrode assembly, the plate electrode assembly is fixed on the insulator low-pressure side, forms the air gap between plate electrode and the bulb electrode.
2. urban track traffic contact line bulb electrode lightning arrester according to claim 1, it is characterized in that: described plate electrode assembly comprises first anchor ear, first screw rod and first nut, first anchor ear is fixedlyed connected with plate electrode, first screw rod is arranged on the both sides of first anchor ear, and first nut is arranged on first screw rod.
3. urban track traffic contact line bulb electrode lightning arrester according to claim 1, it is characterized in that: described mounting panel assembly comprises flanged plate, second anchor ear, second screw rod and second nut, flanged plate one end is provided with the circular hole that is connected with lightning arrester body, flanged plate is connected with second anchor ear, second screw rod is arranged on second anchor ear, and second nut is arranged on second screw rod.
4. urban track traffic contact line bulb electrode lightning arrester according to claim 1, it is characterized in that: described bulb electrode is a hemisphere, and inside is provided with reinforcement, and central spot is provided with screwed hole.
5. urban track traffic contact line bulb electrode lightning arrester according to claim 1, it is characterized in that: the distance between described bulb electrode and the plate electrode is 20～200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205445850U CN201804645U (en) | 2010-09-28 | 2010-09-28 | Ball-electrode lightning arrester for urban rail transit contact system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205445850U CN201804645U (en) | 2010-09-28 | 2010-09-28 | Ball-electrode lightning arrester for urban rail transit contact system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201804645U true CN201804645U (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205445850U Expired - Lifetime CN201804645U (en) | 2010-09-28 | 2010-09-28 | Ball-electrode lightning arrester for urban rail transit contact system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201804645U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950647A (en) * | 2010-09-28 | 2011-01-19 | 山东迅实电气有限公司 | Ball-end electrode lightning arrester of urban rail transit contact system |
-
2010
- 2010-09-28 CN CN2010205445850U patent/CN201804645U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950647A (en) * | 2010-09-28 | 2011-01-19 | 山东迅实电气有限公司 | Ball-end electrode lightning arrester of urban rail transit contact system |
| CN101950647B (en) * | 2010-09-28 | 2012-06-06 | 山东迅实电气有限公司 | Ball-end electrode lightning arrester of urban rail transit contact system |
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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: CHINA RAILWAY ELECTRIFICATION SURVEY DESIGN + RESE |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yin Bin Inventor after: Wang Litian Inventor after: Chen Weijiang Inventor after: Zhao Haijun Inventor before: Yin Bin |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YIN BIN TO: YIN BIN WANG LITIAN CHEN WEIJIANG ZHAO HAIJUN |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20111103 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 Patentee before: Shandong Xunshi Electric Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
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: China Railway Electrification Survey Design & Research Institute Co., Ltd. Patentee before: Shandong Xunshi Electric Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110420 Effective date of abandoning: 20120606 |