CN1294599C - Method for producing serially combined voltage-equalizing anti-explosion arrester - Google Patents
Method for producing serially combined voltage-equalizing anti-explosion arrester Download PDFInfo
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- CN1294599C CN1294599C CN 02135313 CN02135313A CN1294599C CN 1294599 C CN1294599 C CN 1294599C CN 02135313 CN02135313 CN 02135313 CN 02135313 A CN02135313 A CN 02135313A CN 1294599 C CN1294599 C CN 1294599C
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Abstract
The present invention relates to a manufacturing method of an insulation lightning arrester for a power transmission and distribution line. The anti-explosion lightning arrester of a serial combination unit and a voltage-equalizing gap, which is manufactured by the manufacturing method of the present invention, is composed of an anti-explosion main body part of a serial combination unit and a voltage-equalizing gap, and a fixed sealing casing part, wherein the main body part is formed by connecting in series a multi-hole ventilation type discharging gap valve blocks of a large effective discharging plane, and at least one group of hollow ventilation type metal zinc oxide assemblies, wherein the multi-hole ventilation type discharging gap valve blocks of a large effective discharging plane is formed by clamping at least one group of multi-hole ventilation type discharging gap valve sheets of the large effective discharging plane, and a hollow insulation washer; the periphery waist of the group of hollow ventilation type metal zinc oxide assemblies is inlaid and bonded with a ventilation type insulation arc covering positioning circular disc, and the center is provided with a ventilation hole and is bonded and inlaid with an insulation tube. The present invention can be applied to manufacturing a lightning protection and anti-explosion insulator and the anti-explosion lightning arrester. Besides, the lightning protection and anti-explosion insulator and the anti-explosion lightning arrester have a high protection function and a large safe factor.
Description
(1) technical field
The present invention relates to fail, the anti-explosion arrester of distribution line equipment.
(2) background technology
Took the lead in succeeding in developing non-linear ZnO resistors by MAT in 1970; what the world was in vogue at present enumerates stack and the lightning arrester of sealing moulding by ZnO resistors; why be in monopoly position in China; be because the molecular structure of this part presents high resistance deal, big parasitic capacitive deal simultaneously; and the stray inductance deal, and have advantages such as non-linear protective feature is good, energy absorption capability big, stability is better.But also there is simultaneously the drawback that is difficult to overcome, produces bigger residual voltage during promptly by big electric current and have the leakage current that differs in size, easily cause the ant cave effect that inrushes.At first, this lightning arrester will produce higher residual voltage by big electric current the time, be to guarantee the safety of line facility, just must satisfy insulation coordination ratio between protected circuit equipment and the residual voltage of arrester-be the requirement of coefficient of safety.Residual voltage is higher, and is also higher to the dielectric strength requirement of protected circuit equipment self.This has just increased cost and the complexity and the difficulty of protected circuit equipment.Moreover, because the power loss that its resistive deal electric current produces-be that leakage current and nonlinear characteristic thereof are the external factors such as height with ambient temperature, solar radiation intensity and the voltage that applies in the external world, inversely proportional circulation, the stack of oxidation zinc metal sheet and the encapsulation that add this lightning arrester again are very tight, there is not the condition that convection current, circulation cycle heat radiation are provided to hot barometric pressure in its inside, special under the strong solar radiation of torridity summer, more aggravated its vicious circle to the reverse ratio of critical condition.Under this state, if meet thunderbolt, single-phase earthing, load rejection, when pernicious operating modes such as accident such as automatic reclosing or switching overvoltage occur, the generation of very easy explosion caused accident.
(3) summary of the invention
The objective of the invention is to make and a kind ofly not only can tolerate the big electric current that repeatedly is struck by lightning; and can reduce lightning arrester significantly in the residual voltage value that is produced when being struck by lightning big electric current and power-frequency overvoltage overcurrent; reduce insulation coordination severe this requirement to the apparatus insulated intensity of protected circuit; protect its line facility insulation not breakdown, improve its defencive function and coefficient of safety.Eliminate the power loss (or claiming leakage current) of resistive deal electric current, reduce the electric energy loss of power line course of conveying.Reduce big electric current by the time lightning arrester inside the burn vestige, keep discharge voltage even, it is stable to keep earth resistance, is beneficial to relaying protection choosing value and adjusts and precision maneuver, and prolong its lightning arrester life-span.The heat expansion air pressure that is produced when giving by big electric current forms convection current, circulation, circulation heat radiation release of pressure and leakage path, to prevent its blast, guarantees its safety.
The objective of the invention is to finish by following measure:
Anti-explosion arrester of the present invention is to be in series by a separate unit or more than one separate unit, and described separate unit is made up of lightning arrester main part and fixing seal housing parts two parts; Its lightning arrester main part is made up of at least one group of aeration type discharging gap valve group, at least one group of aeration type zinc oxide assembly of serial connection, described aeration type discharging gap valve group is to be made of aeration type discharging gap valve block clamping hollow insulating washer, and described aeration type zinc oxide assembly is formed by hollow aeration type ZnO resistors and at its peripheral bonding aeration type insulation screening garden, arc location dish; The fixing seal housing parts by base, loam cake more in addition fastening insulating material adhering and sealing form; Described aeration type discharging gap valve block is a stainless steel material.
Anti-explosion arrester of the present invention, when constituting by more than one separate unit, combination between each separate unit is to be one by the dish series connection of fastening garden, the center of its fastening garden dish is provided with the mesopore airway, and is provided with by netted packing ring, axis at the mesopore airway and makes up the releasing pressure automatically seal valve group device that fastening pin rod, cone seal plug, spring, protecting cover combine.
Anti-explosion arrester of the present invention, aeration type discharging gap valve block is stainless sheet steel and is provided with a plurality of air vent holes, its effective cross-section is that 2KV is 60 square millimeters-600 square millimeters when following at every separate unit discharge voltage, at each separate unit discharge voltage is 2KV when above, is 300 square millimeters-1800 square millimeters.
Anti-explosion arrester of the present invention, the stainless thickness that aeration type discharging gap valve block is selected, at each separate unit discharge voltage is that 2KV chooses at 0.2 millimeter-1.3 millimeters when following, is 2KV when above at each separate unit discharge voltage, chooses at 0.5 millimeter-3.6 millimeters.
Anti-explosion arrester of the present invention, the thickness of the hollow insulating washer of clamping in the described aeration type discharging gap valve group, at each separate unit discharge voltage is that 2KV is when following, choose by 0.1 millimeter-1.9 millimeters thickness, at each separate unit discharge voltage is 2KV when above, chooses by 0.3 millimeter-4.8 millimeters thickness.
Anti-explosion arrester of the present invention, the thickness that described insulation hides garden, arc location dish is that 2KV is when following at each separate unit discharge voltage, choose at 0.1 millimeter-2 millimeters thickness, at each separate unit discharge voltage is that 2KV is when above, choose at 0.5 millimeter-5 millimeters, and in the center roof vent of ZnO resistors with the bonding high strength insulated tube of having inlayed of high strength insulating adhesive.
Anti-explosion arrester of the present invention, the thickness of described ZnO resistors is 2KV when following at each separate unit discharge voltage, chooses by 1 millimeter-20 millimeters, be 2KV when above at each separate unit discharge voltage, choose by 10 millimeters-60 millimeters.
Anti-explosion arrester of the present invention, described base is provided with the mesopore airway, and is provided with by axis in the upper port of mesopore airway and makes up the sealing automatic decompression valve that fastening pin rod, hemisphere piston valve body, spring, hemisphere packed-piston, protecting cover are formed; Be provided with by spring, cone seal plug, protecting cover, axis in the lower port of mesopore airway and make up the sealing relief valve that fastening pin rod is formed.
The manufacture method of the anti-explosion arrester that the present invention makes, be to have utilized the aforementioned advantageous characteristic that non-linear ZnO resistors had, in addition, 1. transform ZnO resistors as central hole ventilation type, 2. around it in waist mosaic bonding the aeration type insulation hide garden, arc location dish, 3. the bonding high strength insulated tube of having inlayed in hole therein, 4. adopt hardness, fusing point is far above red copper or brass, and the approximate stainless steel that can substitute of characteristic has been made effectively big discharge plane porous aeration type discharging gap valve group, 5. close the series connection ZnO resistors with the effective discharge of many groups big plane porous aeration type discharging gap valve assembly, it is several weak point electric arcs that long arc is blocked, make its blow-out easier, it is slighter to burn, and the lower life-span of its heat and hot barometric pressure is longer, and characteristic is perfect more good.6. be provided with the mesopore airway at the fastening garden of binodal combination serial connection dish, and in airway, be provided with the sealing automatic decompression valve with heat expansion air pressure heat loss through convection release of pressure.7. the plane is provided with the aeration type packing ring and to heat expansion air pressure a cushion space is set on its base.8. be provided with the mesopore airway at the center of its base, and be provided with the passage that sealing automatic decompression valve group gives the external release of higher thermal flatulence pressure separately at the upper and lower port of mesopore airway.
Therefore; the present invention not only can tolerate the big electric current that repeatedly is struck by lightning; and can reduce lightning arrester significantly in the residual voltage value that is produced when being struck by lightning big electric current and power-frequency overvoltage overcurrent; reduce insulation coordination severe this requirement to the apparatus insulated intensity of protected circuit; protect its line facility insulation not breakdown, improve its defencive function and coefficient of safety.Eliminate the power loss (or claiming leakage current) of resistive deal electric current, reduce the electric energy loss of power line course of conveying.Reduce big electric current by the time lightning arrester inside the burn vestige, keep discharge voltage even, it is stable to keep earth resistance, is beneficial to relaying protection choosing value and adjusts and precision maneuver, and prolong its lightning arrester life-span.The heat expansion air pressure that is produced when giving by big electric current forms convection current, circulation, circulation heat radiation release of pressure and leakage path, to prevent its blast, guarantees its safety.
(4) description of drawings
Fig. 1 is an anti-explosion arrester agent structure schematic diagram of the present invention
Fig. 2 is the structural representation of fastening garden dish
Fig. 3 is that three unit-combination types are all pressed explosion-proof lightning protection device structural representation
Fig. 4 all presses lightning-arrest explosion-proof isolation minor structure schematic diagram for being connected in series dividing potential drop
Among the figure:
1. locate aeration type spring assembly dish,
2. discharging gap valve block,
3. hollow insulating washer,
4. pad,
5. insulation hides garden, arc location dish
6. ZnO resistors
7. packing ring
8. axis makes up fastening pin rod
9 hemisphere piston valve bodies
10. spring
11. hemisphere packed-piston
12. protecting cover
13 springs
14. cone seal plug
15. protecting cover
16. axis makes up fastening pin rod
17. base
18. axis makes up fastening pin rod
19. netted packing ring
20. cone seal plug
21. spring
22. protecting cover
23. fastening garden dish
(5) preferred forms
Embodiment 1:
As shown in Figure 3, be three unit-combination type explosion-proof lightning protection devices.It is 3.3KV that present embodiment is suitable for every separate unit discharge voltage, and its composite entity voltage is the 10KV anti-explosion arrester.Form by three groups of serially combined voltage-equalizing anti-explosion main parts and fixing seal housing parts two parts; Its main part is made up of three unit, and the structure of upper, middle and lower Unit three is identical substantially.
The main part of its each unit is as shown in Figure 3: the big plane of the effective discharge porous aeration type discharging gap valve group that big plane porous aeration type discharging gap valve block (2) the clamping hollow insulating washer (3) that effectively discharges constitutes, be connected in series mosaic bonding in the peripheral waist aeration type insulation center that hides garden, arc location dish (5) air vent hole and the sticking hollow aeration type ZnO resistors (6) that studs with insulated tube are arranged.
During three separate unit tandem compounds, be to finish by the binodal combination fastening garden dish of serial connection (23).As shown in Figure 2, the center of its fastening garden dish (23) is provided with the mesopore airway, and the hole airway is provided with by netted packing ring (19), axis and makes up fastening pin rod (18), cone seal plug (20) therein.
The fixing seal housing parts be by base (17), loam cake more in addition fastening insulating material adhering and sealing formed.
Base is provided with the mesopore airway, and is provided with by axis in the upper port of mesopore airway and makes up the sealing automatic decompression valve that fastening pin rod (8), hemisphere piston valve body (9), spring (10), hemisphere packed-piston (11), protecting cover (12) are formed; Be provided with by spring (13), cone seal plug (14), protecting cover (15), axis in the lower port of mesopore airway and make up the sealing relief valve that fastening pin rod (16) is formed.
Effectively the big plane porous aeration type discharging gap valve block of discharge (2) is by the stainless steel material manufacturing, and net sectional area is 1500 square millimeters, and thickness is 3 millimeters.The thickness of hollow insulating washer (3) is 3.8 millimeters.The thickness that the aeration type insulation hides garden, arc location dish is 4 millimeters.Central hole ventilation type ZnO resistors (6) thickness is 50 millimeters.
To the 10KV phase line, discharge voltage 9KV, stretching resistance 70KN level, simulation thunderbolt 4/10us heavy current impact is done by institute, and maximum current is 63.87KA, and its residual voltage is 8.884KV, does not have puncture, no flashover, does not have blast, no explosion, and test product is intact.Through dissecting check measurement, its burn is slight, can bear the 63.87KA rush of current 33 times, and its error maintains ± 5% scope, can keep ground discharge voltage error when impacting 165 times in ± 10% scope.By probability of lightning current is that 90% 10KA impacts 98 times, keeps error ± 5%, impacts 490 times, keeps error ± 10%.
Embodiment 2:
As shown in Figure 4, present embodiment is that every separate unit discharge voltage is lightning-arrest explosion-proof isolation of 3KV.
Effectively the big plane porous aeration type discharging gap valve block of discharge (2) is by the stainless steel material manufacturing, and net sectional area is 816 square millimeters, and thickness is 1.8 millimeters.The thickness of hollow insulating washer (3) is 3 millimeters.The thickness that the aeration type insulation hides garden, arc location dish (5) is 2.5 millimeters.Central hole ventilation type ZnO resistors (6) is a zinc oxide, and thickness is 15 millimeters.
Its structure member is substantially the same manner as Example 1.
To the explosion-proof lighting-prtection insulator of electric overhead ground wire discharge voltage is that 3KV, stretching resistance are 70KN, and simulation thunderbolt 4/10us heavy current impact is done by institute, and maximum current is 98.42KA, and residual voltage is 19.25KV altogether, does not have puncture, no flashover, does not have blast, no explosion, and test product is intact.Through dissecting check measurement, its burn is slight, can bear 21 its discharge voltage errors of 98.42KA rush of current can maintain ± 5% scope in, can keep its error when impacting 83 times to maintain ± 10% scope in.
Embodiment 3:
Present embodiment is the anti-explosion arrester that every separate unit discharge voltage is 1KV.
Effectively the big plane porous aeration type discharging gap valve block of discharge (2) is by the stainless steel material manufacturing, and net sectional area is 325 square millimeters, and thickness is 0.6 millimeter.The thickness of hollow insulating washer (3) is 0.9 millimeter.The thickness that the aeration type insulation hides garden, arc location dish is 1.2 millimeters.Central hole ventilation type ZnO resistors (6) is a zinc oxide, and thickness is 12 millimeters.
The main part of present embodiment is that a unit is formed.Its structure member is substantially the same manner as Example 1.
To electric power lightning conducter discharge voltage is that 1KV, stretching resistance are the 70KN level, and simulation thunderbolt 4/10us heavy current impact is done by institute, and maximum current is 43.42KA, and residual voltage is 8.25KV altogether, does not have puncture, no flashover, does not have blast, no explosion, and test product is intact.Through dissecting check measurement, its burn is slight, can bear 15 its discharge voltage errors of 43.42KA rush of current can maintain ± 5% scope in, can keep its error when impacting 53 times to maintain ± 10% scope in.
Claims (8)
1. anti-explosion arrester, it is characterized in that: be to be in series by a separate unit or more than one separate unit, described separate unit is made up of lightning arrester main part and fixing seal housing parts two parts; Its lightning arrester main part is made up of at least one group of aeration type discharging gap valve group, at least one group of aeration type zinc oxide assembly of serial connection, described aeration type discharging gap valve group is to be made of aeration type discharging gap valve block (2) clamping hollow insulating washer (3), and described aeration type zinc oxide assembly is formed by hollow aeration type ZnO resistors (6) and at its peripheral bonding aeration type insulation screening garden, arc location dish (5); The fixing seal housing parts by base (17), loam cake more in addition fastening insulating material adhering and sealing form; Described aeration type discharging gap valve block (2) is a stainless steel material.
2. anti-explosion arrester according to claim 1, it is characterized in that: the combination between the more than one separate unit is to be one by fastening garden dish (23) series connection, the center of its fastening garden dish (23) is provided with the mesopore airway, and is provided with by netted packing ring (19), axis at the mesopore airway and makes up the releasing pressure automatically seal valve group device that fastening pin rod (18), cone seal plug (20), spring (21), protecting cover (22) combine.
3. anti-explosion arrester according to claim 1 and 2, it is characterized in that: aeration type discharging gap valve block (2) is stainless sheet steel and is provided with a plurality of air vent holes, its effective cross-section is that 2KV is 60 square millimeters-600 square millimeters when following at every separate unit discharge voltage, at each separate unit discharge voltage is 2KV when above, is 300 square millimeters-1800 square millimeters.
4. anti-explosion arrester according to claim 3, it is characterized in that: the stainless thickness that aeration type discharging gap valve block is selected, at each separate unit discharge voltage is that 2KV chooses at 0.2 millimeter-1.3 millimeters when following, at each separate unit discharge voltage is 2KV when above, chooses at 0.5 millimeter-3.6 millimeters.
5. anti-explosion arrester according to claim 1 and 2, it is characterized in that: the thickness of the hollow insulating washer of clamping in the described aeration type discharging gap valve group, at each separate unit discharge voltage is that 2KV is when following, choose by 0.1 millimeter-1.9 millimeters thickness, at each separate unit discharge voltage is 2KV when above, chooses by 0.3 millimeter-4.8 millimeters thickness.
6. anti-explosion arrester according to claim 1 and 2, it is characterized in that: the thickness that described insulation hides garden, arc location dish (5) is that 2KV is when following at each separate unit discharge voltage, choose at 0.1 millimeter-2 millimeters thickness, at each separate unit discharge voltage is that 2KV is when above, choose at 0.5 millimeter-5 millimeters, and in the center roof vent of ZnO resistors (6) with the bonding high strength insulated tube of having inlayed of high strength insulating adhesive.
7. anti-explosion arrester according to claim 1 and 2, it is characterized in that: the thickness of described ZnO resistors (6), at each separate unit discharge voltage is that 2KV is when following, choose by 1 millimeter-20 millimeters, at each separate unit discharge voltage is 2KV when above, chooses by 10 millimeters-60 millimeters.
8. anti-explosion arrester according to claim 1 and 2, it is characterized in that: described base (17) is provided with the mesopore airway, and is provided with by axis in the upper port of mesopore airway and makes up the sealing automatic decompression valve that fastening pin rod (8), hemisphere piston valve body (9), spring (10), hemisphere packed-piston (11), protecting cover (12) are formed; Be provided with by spring (13), cone seal plug (14), protecting cover (15), axis in the lower port of mesopore airway and make up the sealing relief valve that fastening pin rod (16) is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02135313 CN1294599C (en) | 2002-07-26 | 2002-07-26 | Method for producing serially combined voltage-equalizing anti-explosion arrester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02135313 CN1294599C (en) | 2002-07-26 | 2002-07-26 | Method for producing serially combined voltage-equalizing anti-explosion arrester |
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| CN1409330A CN1409330A (en) | 2003-04-09 |
| CN1294599C true CN1294599C (en) | 2007-01-10 |
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| CN 02135313 Expired - Fee Related CN1294599C (en) | 2002-07-26 | 2002-07-26 | Method for producing serially combined voltage-equalizing anti-explosion arrester |
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| CN106847449A (en) * | 2017-02-20 | 2017-06-13 | 辰硕电子(九江)有限公司 | A kind of high pressure varistor of long-life high reliability |
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Owner name: YANTAI LUOHUA ELECTRICAL APPLIANCES SWITCH EQUIPME Free format text: FORMER OWNER: TANG SHENGYAN Effective date: 20091204 |
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Effective date of registration: 20091204 Address after: No. 799 Xincheng street, Muping District, Shandong, Yantai Patentee after: Yantai Luohua Electric Power Technology Co., Ltd. Address before: No. 40, Longdong Road, Shandong, Ji'nan Province, Shandong Institute of political science and law cadre office, Tang Hong Patentee before: Tang Shengyan |
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Granted publication date: 20070110 Termination date: 20130726 |