CN101401269B - Arrester - Google Patents
Arrester Download PDFInfo
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- CN101401269B CN101401269B CN2007800083233A CN200780008323A CN101401269B CN 101401269 B CN101401269 B CN 101401269B CN 2007800083233 A CN2007800083233 A CN 2007800083233A CN 200780008323 A CN200780008323 A CN 200780008323A CN 101401269 B CN101401269 B CN 101401269B
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- arrester
- lightning arrester
- sleeve
- die body
- unit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
- H01C7/126—Means for protecting against excessive pressure or for disconnecting in case of failure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/102—Varistor boundary, e.g. surface layers
Abstract
To ensure a surface pressure on the interface between the insertion hole in a bushing and a rubber mold body to prevent a void from occurring. The inventive bushing (2) is provided with an insertion hole (3a) for housing an arrester mold body (6), and a tapered insertion hole (53a) spreading in a conical shape from the high pressure side of the bushing (2) to the low pressure side is provided in a region where electric field of the insertion hole (3a) concentrates. The arrester mold body (6) is provided with a rubber mold body (67) consisting of silicone rubber or the like integrally molded around the outer periphery of an arrester element laminate (61), and the rubber mold body (67) is provided with a conical portion (67b) to be able to be fitted to the tapered inner surface of the tapered insertion hole (53a).
Description
Technical field
The present invention relates to be provided with zinc oxide the lightning arrester (ア レ ス タ) of lamilated body (hereinafter referred to as " unit of an arrester lamilated body ") of a plurality of non-rectilinear resistive elements (hereinafter referred to as " unit of an arrester ") that are main component, the lightning arrester in space is pressed and prevented to produce to the face that relates in particular to the patchhole that can guarantee sleeve and comprise the interface between the rubber die body of unit of an arrester lamilated body.
Background technology
Generally speaking, setting lightning arrester in the gas-insulated switchgear device of being located at power station or transformer station etc., this lightning arrester electric equipments such as protection switch device or transformer such as is used for when thundering and is not invaded from circuit by abnormal voltage.
In the known prior art, such lightning arrester as shown in Figure 4, the unit of an arrester lamilated body 100 upright bottom 110a that are located at the jar 110 of having enclosed insulating gas go up and (for example support by insulation support tube 120, non-patent literature 1), perhaps, as shown in Figure 5, sleeve 220 is installed in airtightly the inwall of equipment box 210,230 mounting or dismounting of unit of an arrester lamilated body are installed in (for example, patent documentation 1) in the described sleeve 220 freely.The on high-tension side eccentric shield of Reference numeral 140 expressions among Fig. 4,150 expression insulating washers, 160 expression instrument cases, 170 expression adsorbents.
But, in the former lightning arrester, for the feasible voltage that constitutes the unit of an arrester of unit of an arrester lamilated body 100 is shared homogenizing, must set large-scale shield 140 in the high-pressure side of unit of an arrester lamilated body 100, therefore there is the such difficult point of equipment self maximization, and, when the withstand voltage test of the gas-insulated switchgear device with unit of an arrester lamilated body 100 (hereinafter referred to as " GIS (Gas Insulated Switchgear) "), unit of an arrester lamilated body 100 is separated from main circuit conductor (not shown), therefore separator (not shown) need be set, thereby have the such difficult point of equipment complex structureization.
On the other hand, in the latter's lightning arrester, separator thereby simple structureization can be set, and when carrying out withstand voltage test, do not need to reclaim, the operation of the insulating gas in the pad device case 210, however, owing to exist equipment box 210 in the part of the periphery of unit of an arrester lamilated body 230 as earth electrode, so being difficult to make the voltage of unit of an arrester 230a shares evenly, therefore, exist the difficult point of using in the circuit that only limits to the middle pressure usefulness about 22/33kV.
Therefore, the present inventor etc. have at first developed as shown in Figure 6, be provided with the lightning arrester (hereinafter referred to as " gas tank shape lightning arrester in the GIS ") of sleeve 320 and lightning arrester die body 340 and applied for patent (Japanese Patent Application 2004-357915), this sleeve 320 is made of and is installed in airtightly the peristome 310 of the equipment box 300 that holds electric equipment epoxy resin, the outside mounting or dismounting of these lightning arrester die body 340 slave unit casees 300 are installed in the patchhole 330 of sleeve 320 freely.
At this, lightning arrester die body 340 is by by with the laminated unit of an arrester lamilated body 350 that forms of a plurality of unit of an arrester 350a be arranged on the rubber die body 360 that the silicon rubber of these unit of an arrester lamilated body 350 peripheries constitutes and constitute.And, the sleeve 320 that holds rubber die body 360 is provided with: the cylindrical portion (hereinafter referred to as " leading section cylindrical portion ") 321 of upper end locking with patchhole (hereinafter referred to as " leading section patchhole ") 321a of the cylindrical front end 340a that is used for taking in lightning arrester die body 340, have the columned rearward end 340b that is used for taking in lightning arrester die body 340 patchhole (hereinafter referred to as " rearward end patchhole ") 322a cylindrical portion (hereinafter referred to as " rearward end cylindrical portion ") 322 and have the cylindrical portion (hereinafter referred to as " middle cylinder portion ") 323 of taper patchhole (hereinafter referred to as " taper the patchhole ") 323a of coniform the 340c that is used for taking in the pars intermedia of being located at lightning arrester die body 340.
According to gas tank shape lightning arrester in the GIS of such formation, lightning arrester die body 340 whole patchhole 330 inside that are incorporated in sleeve 320, thereby, compare with existing lightning arrester applicable in the higher circuit of electric pressure, by with rubber die body 360 towards the pushing of the leading section of sleeve 320, can guarantee between the awl outside of awl inner face and coniform the 340c that constitutes rubber die body 360 of taper patchhole 323a of sleeve 320 the face pressure, prevent insulation breakdown at the interface.
More specifically say, rearward end at lightning arrester die body 340 sets spring 370, seal cover 390 by being provided in sleeve 320 rearward end spring 370 towards axial compression, thus the awl of coniform the 340c that constitutes rubber die body 360 outside is pressed to the awl inner face of the taper patchhole 323a of sleeve 320, guarantees the insulation property at the interface between the awl inner face of taper patchhole 323a of the awl outside of coniform 340c of rubber die body 360 and sleeve 320 thus.
On the other hand, near the easy small space of the formation part P that links of coniform 340c of rubber die body 360 and the leading section 340a of rubber die body 360.Therefore, in the GIS that so constitutes in the gas tank shape lightning arrester, triple junction points that sleeve 320 (epoxy resin), air (near the minim gap the part that the links P) and rubber die body 360 (silicon rubber) join (are not fully covered by high pressure shield 380 hereinafter referred to as " triple junction points (ト リ プ Le ジ ヤ Application Network シ ヨ Application) ", therefore as Fig. 7, shown in Figure 8, exist electric field around arriving triple junction points P side, air (gap) part at these triple junction points produces the such difficult point of partial discharge.
Non-patent literature 1: the 851st phase 7 of Japanese Electrotechnical Committee's technical report (Fig. 2,10)
Patent documentation 1: Japanese kokai publication hei 1-232681 (Fig. 1)
Summary of the invention
The present invention proposes for solving above-mentioned difficult point, and purpose provides a kind of patchhole and face at the interface between the rubber die body by guaranteeing sleeve and presses and prevent to produce the space, thus the lightning arrester that can be suppressed to the generation of interface portion partial discharge.
The lightning arrester of the present invention's first mode, be provided with sleeve and lightning arrester die body, this sleeve is provided in peristome in the mode of the peristome that is covered with the equipment box of taking in electric equipment airtightly, and the outside mounting or dismounting of this lightning arrester die body slave unit case are installed in the patchhole of sleeve freely; The lightning arrester die body is provided with the laminated unit of an arrester lamilated body that forms of a plurality of unit of an arrester and is arranged on the rubber die body of unit of an arrester lamilated body periphery; The outer periderm high pressure shield of the leading section of unit of an arrester lamilated body covers; Zone in that the electric field of the patchhole of sleeve is concentrated is provided with from the high-pressure side of sleeve and is extended to conical awl inner face towards low-pressure side, is provided with and bores the chimeric awl outside of inner face on the rubber die body.
The lightning arrester of the present invention's second mode, be provided with sleeve and lightning arrester die body, this sleeve is provided in peristome in the mode of the peristome that is covered with the equipment box of taking in electric equipment airtightly, and the outside mounting or dismounting of this lightning arrester die body slave unit case are installed in the patchhole of sleeve freely; The lightning arrester die body is provided with the laminated unit of an arrester lamilated body that forms of a plurality of unit of an arrester and is arranged on the rubber die body of unit of an arrester lamilated body periphery; The outer periderm high pressure shield of the leading section of unit of an arrester lamilated body covers; On the patchhole of sleeve, be provided with the awl inner face, the awl inner face from the low pressure direction end of high pressure shield near corresponding position to the high pressure side of equipment box near interval till the corresponding position be extended to taper shape from the high-pressure side of sleeve towards low-pressure side, on the rubber die body, be provided with and bore outside the chimeric awl of inner face.
The lightning arrester of Third Way of the present invention, be provided with sleeve and lightning arrester die body, this sleeve is provided in peristome in the mode of the peristome that is covered with the equipment box of taking in electric equipment airtightly, and the outside mounting or dismounting of this lightning arrester die body slave unit case are installed in the patchhole of sleeve freely; The lightning arrester die body is provided with the laminated unit of an arrester lamilated body that forms of a plurality of unit of an arrester and is arranged on the rubber die body of unit of an arrester lamilated body periphery; The outer periderm high pressure shield of the leading section of unit of an arrester lamilated body covers; On the patchhole of sleeve, be provided with the awl inner face, the awl inner face from the position corresponding with the pars intermedia of high pressure shield to the high pressure side of equipment box near interval till the corresponding position be extended to taper shape from the high-pressure side of sleeve towards low-pressure side, on the rubber die body, be provided with and bore outside the chimeric awl of inner face.
The lightning arrester of the cubic formula of the present invention, be provided with sleeve and lightning arrester die body, this sleeve is provided in peristome in the mode of the peristome that is covered with the equipment box of taking in electric equipment airtightly, and the outside mounting or dismounting of this lightning arrester die body slave unit case are installed in the patchhole of sleeve freely; The lightning arrester die body is provided with the laminated unit of an arrester lamilated body that forms of a plurality of unit of an arrester and is arranged on the rubber die body of unit of an arrester lamilated body periphery; The outer periderm high pressure shield of the leading section of unit of an arrester lamilated body covers; On the patchhole of sleeve, be provided with the awl inner face, the awl inner face from the position corresponding with the top of high pressure shield to the high pressure side of equipment box near interval till the corresponding position be extended to taper shape from the high-pressure side of sleeve towards low-pressure side, on the rubber die body, be provided with and bore outside the chimeric awl of inner face.
The lightning arrester of the present invention's the 5th mode, be provided with sleeve and lightning arrester die body, this sleeve is provided in peristome in the mode of the peristome that is covered with the equipment box of taking in electric equipment airtightly, and the outside mounting or dismounting of this lightning arrester die body slave unit case are installed in the patchhole of sleeve freely; The lightning arrester die body is provided with the laminated unit of an arrester lamilated body that forms of a plurality of unit of an arrester and is arranged on the rubber die body of unit of an arrester lamilated body periphery; The outer periderm high pressure shield of the leading section of unit of an arrester lamilated body covers; Be provided with the awl inner face on the patchhole of sleeve, the interval of awl inner face till from the leading section of sleeve to the rearward end of sleeve is extended to taper shape from the high-pressure side of sleeve towards low-pressure side, is provided with and bores the chimeric awl outside of inner face on the rubber die body.
The lightning arrester of the present invention's the 6th mode, be in each the lightning arrester in first～the 5th mode, the lightning arrester die body be provided with zinc oxide be main component the laminated unit of an arrester lamilated body that forms of a plurality of unit of an arrester, with the bonding conductor of the high-pressure side butt of unit of an arrester lamilated body and with the pushing metalwork of the low-pressure side butt of unit of an arrester lamilated body.
The lightning arrester of the present invention's the 7th mode is in each the lightning arrester in first～the 6th mode, and the rearward end of lightning arrester die body is passed the peristome of equipment box and exported to the outside of equipment box.
The present invention the is the lightning arrester of formula from all directions, is that the rearward end of sleeve is formed by the cylinder-like part of insulating properties in each the lightning arrester in first～the 7th mode, and cylinder-like part passes the peristome of equipment box and exported to the outside of equipment box.
The lightning arrester of the present invention's the 9th mode is that sleeve is formed by the plastic resin of hard the first～the from all directions in the lightning arrester of each in the formula.
According to the lightning arrester of the present invention first～the 9th mode, can obtain following effect.
First, because the mounting or dismounting of the outside of lightning arrester die body slave unit case are installed on the sleeve of the peristome that is provided in equipment box airtightly freely, so, need not as existing gas-insulated type lightning arrester, separator to be set, therefore can make simple in equipmentization, and, when carrying out the replacing of unit of an arrester, can not carry out insulating gas is reclaimed, is filled into operation in the equipment box.
The second, because the outer periderm high pressure shield covering of the leading section of lightning arrester die body, so can make the voltage of unit of an arrester share homogenizing, and then can be provided in the lightning arrester that also can be suitable in the high-tension line of 66/77kV level.
The 3rd, because the part of lightning arrester die body is exported to the outside of equipment box, so can seek the downsizing of equipment.
The 4th, by the rearward end of sleeve being exported to airtightly the outside of equipment box, can seek simplification, miniaturization and the lightweight of equipment structure.
The 5th, by the part of concentrating at the electric field of the patchhole of sleeve the tapering is set, the patchhole that can guarantee sleeve is with the face pressure at the interface between the rubber die body and prevent to produce the space, and then can produce partial discharge to interface portion and suppressed.
Description of drawings
Fig. 1 is the partial longitudinal section figure of the lightning arrester in the first embodiment of the present invention.
Fig. 2 is the equipotential distribution map of the lightning arrester in the first embodiment of the present invention.
Fig. 3 is the partial longitudinal section figure of the lightning arrester in the second embodiment of the present invention.
Fig. 4 is the partial section of existing lightning arrester.
Fig. 5 is the partial section of existing lightning arrester.
Fig. 6 is the partial section of existing lightning arrester.
Fig. 7 is the equipotential distribution map that near the equipotential line the high pressure shield shown in Figure 6 is spaced apart 5kV/mm.
Fig. 8 is the equipotential distribution map that near the equipotential line triple junction point shown in Figure 6 is spaced apart 1kV/mm.
Embodiment
Explanation is suitable for the preferred implementation of lightning arrester of the present invention with reference to the accompanying drawings.In following explanation, " leading section " of sleeve, lightning arrester die body, unit of an arrester lamilated body and high pressure shield, be meant the on high-tension side end of sleeve, lightning arrester die body, unit of an arrester lamilated body and high pressure shield respectively, be equivalent to direction in the drawings.And " rearward end " of sleeve, lightning arrester die body, unit of an arrester lamilated body and high pressure shield is meant and the end of leading section opposition side, is equivalent to direction down in the drawings.
(embodiment 1)
Fig. 1 is the partial section of an example of the lightning arrester of the present invention of expression 66/77kV level.
In the figure, the electric equipment with lightning arrester of the present invention is provided with the equipment box 1 of taking in electric equipments (not shown) such as shutter airtightly, in equipment box 1 for example filling SF
6Insulating gass such as gas.And, be provided with peristome 1a in the bottom of equipment box 1, in described peristome 1a, set sleeve 2, the leading section of this sleeve 2 self is positioned at equipment box 1, and by himself pars intermedia peristome 1a is covered airtightly, mounting or dismounting are installed with lightning arrester die body 6 described later freely in described sleeve 2.
Bonding conductor insertion section 42 has the function as the patchhole of the bonding conductor described later 62 of lightning arrester die body 6, and the major loop connector 43 that is arranged on the leading section of bonding conductor insertion section 42 has the function as the retainer of the spiral spring described later 63 of lightning arrester die body 6.
The high pressure shield 4 of Gou Chenging is projected into the top of the lock portion 51b of leading section cylindrical portion 51 to major loop connector 43 like this, is setting with making side wall portion 51c ground that side wall portion 41a is positioned at leading section cylindrical portion 51 and leading section cylindrical portion 51 concentric shapes.
The sleeve 2 that constitutes like this, the leading section cylindrical portion 51 and the middle cylinder portion 53 of sleeve 2 are positioned at equipment box 1, rearward end cylindrical portion 52 is passed peristome 1a and is exported to the outside of equipment box 1, thus, can make the following butt of circumference of peristome 1a of the top and equipment box 1 of mounting flange 52b.Therefore, in the sleeve 2 that so constitutes, among the groove 1b of the ring-type of the circumference by O type circle P1 being installed in the peristome 1a that is located at equipment box 1, will be provided in bolt insertion hole h1, the h2 of mounting flange 52b～in bolt V1 tighten, just can be installed in sleeve 2 airtightly the peristome 1a of equipment box 1.
On the other hand, lightning arrester die body 6 is provided with: the laminated unit of an arrester lamilated body 61 that forms of a plurality of unit of an arrester 61a that with zinc oxide is main component, be provided in the bonding conductor 62 of the leading section (high-pressure side) of unit of an arrester lamilated body 61, be provided in the spiral helicine spring (hereinafter referred to as " high-pressure side spring ") 63 of the leading section (high-pressure side) of bonding conductor 62, be provided in the pushing metalwork 65 of the rearward end (low-pressure side) of unit of an arrester lamilated body 61, be provided in pushing metalwork 65 following spiral helicine spring (hereinafter referred to as " low-pressure side spring ") 66 and by silicon rubber etc. constitute in the periphery of unit of an arrester lamilated body 61 with bonding conductor 62 with push the rubber die body 67 that metalwork 65 one are molded into.At this, the inner face of the patchhole 3a of the corresponding sleeve 2 in the outside of rubber die body 67 forms.Specifically, at the leading section (high-pressure side) of rubber die body 67 the columned leading section 67a corresponding with the inner face of leading section patchhole 51a is set respectively, pars intermedia setting coniform the 67b corresponding of remainder at the corresponding columned rearward end 67c of rearward end (low-pressure side) setting and the inner face of rearward end patchhole 52a, after removing leading section and rearward end with the awl inner face of taper patchhole 53a.Unit of an arrester 61a considers the varistor voltage of regulation and determines the number corresponding with system voltage.In the present embodiment, be the high-tension line that is applicable to 66kV.
Bonding conductor 62 is provided with high-pressure side butt and shape and the roughly the same round plate 62a of unit of an arrester 61a with unit of an arrester lamilated body 61, with the upper central portion of described round plate 62a towards above the outstanding cylindrical portion 62b that is provided with, be provided with in the periphery of cylindrical portion 62b and be used for the groove 62c of ring-type of conductor adapting piece (multiple contact (マ Le チ コ Application タ Network ト)) of the not shown band shape of setting-in.
Pushing metalwork 65 is provided with diameter than the external diameter of the rearward end side (low-pressure side) of rubber die body 67 circlet shape parts 65a slightly, upper central portion at this endless member 65a is provided with shape and the roughly the same discoid pushing 65b of portion of unit of an arrester 61a, below near the outer peripheral edges of side along the circumferential direction equivalent arrangements for example 12 depressed part 65c.For example 4 screw holes, the 65e that the inner peripheral side that 65d among the figure is illustrated in endless member 65a is along the circumferential direction impartial to be provided with represents to be arranged on the large diameter depressed part (hereinafter referred to as " major diameter depressed part ") of the following side central portion of endless member 65a.
Periphery at the unit of an arrester lamilated body 61 that so constitutes, below the round plate 62a of its leading section and bonding conductor 62 under the state of the 65b of the pushing portion butt of butt, rearward end and pushing metalwork 65, the round plate 62a of mid-span conductor 62 goes up the rubber die body 67 that periphery facial and pushing metalwork 65 is being provided with silicon rubber etc., makes unit of an arrester lamilated body 61 integrated with bonding conductor 62 and pushing metalwork 65 by described rubber die body 67.
Reference numeral F represents to be installed in the seal cover of rear end face of the rearward end cylindrical portion 52 of sleeve 2, and sealing lid F is made of discoid metalworks such as Al-alloy parts.Seal cover F is at the outstanding columned boss portion Fa that can insert the major diameter depressed part 65e that is connected pushing metalwork 65 that is being provided with of upper face side (with sleeve 2 that side in opposite directions) central portion of himself, and, along the circumferential direction equalization is being provided with for example 8 bolt insertion holes (not shown) near the outer peripheral edges of himself, and then, the groove (not shown) of the ring-type that is used for taking in O type circle P2 is being set in the above the concentric shape of rearward end patchhole 52a of side and sleeve.And, in the periphery of boss portion Fa the groove (not shown) of ring-type being set, setting-in banded conductor adapting piece (not shown) in the groove of described ring-type.Reference numeral V3 represents to be used for installing the bolt of earth connection (not shown).
Below, illustrate lightning arrester die body 6 is installed and removed the method that is installed in freely in the sleeve 2.
At first, its first half is installed in the cylindrical portion 62b of bonding conductor 62 highlightedly, under this state, insert the leading section of lightning arrester die body 6 (high-pressure side) in the sleeve 2 and push, until the leading section of high-pressure side spring 63 and the internal face 43a butt of major loop connector 43.Thus, being provided in the tongue piece (not shown) of formation conductor adapting piece (multiple contact) in the groove 62c and the inner peripheral surface of bonding conductor insertion section 42 electrically contacts, simultaneously, make the outer peripheral face of rearward end 67c of inner peripheral surface, rubber die body 67 of taper patchhole 53a of the outer peripheral face of coniform 67b of inner peripheral surface, rubber die body 67 of leading section patchhole 51a of the outer peripheral face of leading section 67a of rubber die body 67 and sleeve 2 and sleeve 2 and the inner peripheral surface butt of rearward end patchhole 52a.
Then, its Lower Half is installed among the depressed part 65c of pushing metalwork 65 highlightedly, simultaneously, in groove F2a, set the O type circle P2 that Viton etc. constitutes, under this state, the following butt of the rearward end cylindrical portion 52 of seal cover F and sleeve 2, and then, the leading section of bolt V2 that passes the bolt insertion hole of seal cover F is tightened with the metalwork N that buries underground that is embedded in below the rearward end cylindrical portion 52.Thus, seal cover F be installed in rearward end cylindrical portion 52 below.
Following butt by so making seal cover F and rearward end cylindrical portion 52, fixing, by the rearward end patchhole 52a sealing of O type circle P2 with sleeve 2, and, push low-pressure side spring 66 in the axial direction, apply the elastic force of regulation by low-pressure side spring 66, and then towards the leading section of sleeve 2 pushing rubber die body 67, and give the face pressure of regulation at the inner peripheral surface of the taper patchhole 53a of sleeve 2 and the fitting portion of the outer peripheral face of coniform 67b of rubber die body 67.
In addition, by the leading section of rubber die body 67 towards sleeve 2 pushed, the high-pressure side spring 63 that is configured in the leading section of rubber die body 67 is urged in the axial direction, this high-pressure side spring 63 applies the elastic force of regulation, thus, between unit of an arrester 61a and the bonding conductor 62, between the unit of an arrester 61a, the face of giving regulation between unit of an arrester 61 and the 65b of pushing portion presses, and makes contact reliably between these parts.
As mentioned above, lightning arrester according to formation like this, owing to lightning arrester die body 6 integral body are accommodated in the inside of the patchhole 3a of sleeve 2, thereby can compare with existing lightning arrester as described later and go in the higher circuit of electric pressure, and, because the rubber die body is urged towards the leading section of sleeve, thereby can guarantee face pressure between the outside of inner face and coniform 67b of rubber die body 67 of taper patchhole 53a of sleeve 2 can prevent to produce at the interface insulation breakdown.More particularly, owing to spring is provided in the rearward end of lightning arrester die body, apply elastic force by this spring, thereby, can be of the leading section pushing of lightning arrester die body towards sleeve, and the outside of the inner face of the taper patchhole 53a by making sleeve 2 and coniform 67b of rubber die body 67 is chimeric, axial pushing force is pressed as face work effectively.And then the inboard of the low pressure direction end E by the high pressure shield concentrated at electric field is provided with the taper patchhole 53a (coniform 67b) that effective acting surface is pressed, and can be as described later the generation of the partial discharge of interface portion be suppressed.
Fig. 2 represents the equipotential distribution map of the lightning arrester in the present embodiment.As known in the figure, the leading section of lightning arrester die body 6 is covered by high pressure shield 4, and, the rearward end of lightning arrester die body 6 is provided in the outside as the equipment box 1 of earthing member, and then, the pars intermedia of lightning arrester die body 6 is by adjusting high pressure shield 4 and suitably controlling electric field as the interval of 1 of the equipment box of earthing member, thus, makes voltage that unit of an arrester 61a shares homogenizing in the vertical.
At this, body 41 describes with the influence that 1 pair of lightning arrester die body of equipment box 6 as earthing member produces to screening.At first there is such relation, promptly, the interval of the high pressure side of the low pressure direction end E of body 41 and equipment box 1 if shortening is screened, then under the influence of screen body 41 and equipment box 1, it is close that the electric field of the pars intermedia of lightning arrester die body 6 becomes, in contrast, if strengthen the interval of the two, then the electric field of described pars intermedia is thinning dredges.Therefore, merely only strengthen the interval of the two, be difficult to make the voltage of unit of an arrester 61a to share homogenizing.In this, make the leading section (lightning arrester die body 6 about 1/3 length) of lightning arrester die body 6 and pars intermedia (lightning arrester die body 6 about 1/3 length) be positioned at equipment box 1 in the present embodiment, make the rearward end (lightning arrester die body 6 about 1/3 length) of lightning arrester die body 6 be positioned at the outside of equipment box 1, thus, can suitably adjust high pressure shield 4 and interval as the equipment box 1 of earthing member, the suitable electric field of the pars intermedia of control lightning arrester die body 6, and then can seek the homogenizing that the voltage of unit of an arrester 61a is shared.
As mentioned above, according to lightning arrester of the present invention, can be installed in the mounting or dismounting of the outside of lightning arrester die body 6 slave unit casees 1 freely in the sleeve 2, and this sleeve 2 is installed on the peristome 1a of equipment box 1 airtightly, thereby need not as existing gas-insulated type lightning arrester, separator to be set, therefore can make simple in equipmentization, and, when carrying out the replacing of unit of an arrester, can not carry out insulating gas is reclaimed, is filled into operation in the equipment box 1.And then, because the outer periderm high pressure shield 4 of the leading section of lightning arrester die body 6 covers, share homogenizing so can make the voltage of unit of an arrester 61a, and then can be provided in the lightning arrester that also can be suitable in the high-tension line of 66/77kV level, and, because the rearward end side (low-pressure side) of lightning arrester die body 6 is exported to the outside of equipment box 1, so can seek the downsizing of equipment.And then, on the patchhole 3a of sleeve 2, from the position S ' corresponding with the top S of high pressure shield 4, promptly when the position E ' corresponding with the low pressure direction end E of high pressure shield 4 observes from the position S ' that is arranged in high-pressure side (leading section) to the high pressure side of equipment box 1 near interval till the corresponding position 1 ' taper patchhole 53a is set, and, on rubber die body 67, be provided with and coniform chimeric 67b of taper patchhole 53a, thus, can guarantee the patchhole of the sleeve in the concentrated zone of electric field and the face pressure at the interface between the rubber die body, and can prevent to produce the space, and then the partial discharge that can produce the interface portion of the two is suppressed.
(embodiment 2)
Fig. 3 is the partial section of the lightning arrester in the expression second embodiment of the present invention.In the figure, to giving identical Reference numeral and omit its detailed description with the common part of Fig. 1.
Among Fig. 3, in this embodiment, the patchhole 3a that replaces sleeve shown in Figure 1, be extended to cone shape taper patchhole 53a ' but in the leading section of sleeve 2 interval till the rearward end of sleeve 2, be provided with towards low-pressure side from the high-pressure side of sleeve, and, on rubber die body 67, be provided with coniform the 67b ' chimeric with the inner face of taper patchhole 53a '.
In this embodiment, same as the previously described embodimentsly, do not need to be provided with separator yet, can make equipment structure simplicity, and, when changing unit of an arrester, do not need to carry out recovery, the filling operation of the insulating gas in the equipment box 1.And then, owing to can make the voltage of unit of an arrester 61a share homogenizing, so can be provided in the lightning arrester that also can be suitable in the high-tension line of 66/77kV level, and, owing to the part of lightning arrester die body 6 (low-pressure side) is exported to the outside of equipment box 1, so can seek the downsizing of equipment.And then, whole zone till from the leading section of sleeve to the rearward end of sleeve is provided with taper patchhole 53a ', make coniform 67b ' of lightning arrester die body 6 chimeric with it, therefore, can on the total length of lightning arrester die body 6, guarantee the face pressure at the interface of the two, prevent the generation in space, and then can provide and compare the more excellent lightning arrester of insulation property with the foregoing description.
The industry utilizability
The present invention can carry out following change, modification in the technical scheme of asking for protection.
The first, in the above-described embodiments, the situation that just sleeve is provided in the bottom of equipment box 1 is illustrated, but also can be provided in sleeve on the sidewall of equipment box 1.
The second, in the above-described embodiments, be applicable to that with regard to arrester of the present invention situation in the high-tension line of 66/77kV is illustrated, but arrester of the present invention also goes for the circuit of not enough 66kV or surpasses the high-tension line of 77kV.
The 3rd, in the above-described embodiments, for on sleeve, from the position corresponding with the top of high pressure shield to the high pressure side of equipment box near the interval till the corresponding position, or be illustrated towards the situation that the low-pressure side setting is extended to cone shape taper patchhole from the high-pressure side of sleeve, but, also can from the low pressure direction end of high pressure shield near corresponding position to the high pressure side of equipment box near the interval till the corresponding position, or from the position corresponding with the pars intermedia of high pressure shield to the high pressure side of equipment box near the interval till the corresponding position high-pressure side from sleeve be extended to cone shape taper patchhole towards the low-pressure side setting.
Claims (10)
1. lightning arrester, it is characterized in that, be provided with sleeve and lightning arrester die body, this sleeve is provided in described peristome in the mode of the peristome that is covered with the equipment box of taking in electric equipment airtightly, and this lightning arrester die body is installed in the patchhole of described sleeve freely from the outside mounting or dismounting of described equipment box;
Described lightning arrester die body is provided with the laminated unit of an arrester lamilated body that forms of a plurality of unit of an arrester and is arranged on the rubber die body of described unit of an arrester lamilated body periphery;
The outer periderm high pressure shield of the leading section of described unit of an arrester lamilated body covers;
On the patchhole of described sleeve, be provided with the awl inner face, described awl inner face from the position corresponding with the pars intermedia of described high pressure shield to the high pressure side of described equipment box near interval till the corresponding position be extended to taper shape from the high-pressure side of described sleeve towards low-pressure side, on described rubber die body, be provided with the awl outside chimeric with described awl inner face.
2. lightning arrester, it is characterized in that, be provided with sleeve and lightning arrester die body, this sleeve is provided in described peristome in the mode of the peristome that is covered with the equipment box of taking in electric equipment airtightly, and this lightning arrester die body is installed in the patchhole of described sleeve freely from the outside mounting or dismounting of described equipment box;
Described lightning arrester die body is provided with the laminated unit of an arrester lamilated body that forms of a plurality of unit of an arrester and is arranged on the rubber die body of described unit of an arrester lamilated body periphery;
The outer periderm high pressure shield of the leading section of described unit of an arrester lamilated body covers;
On the patchhole of described sleeve, be provided with the awl inner face, described awl inner face from the position corresponding with the top of described high pressure shield to the high pressure side of described equipment box near interval till the corresponding position be extended to taper shape from the high-pressure side of described sleeve towards low-pressure side, on described rubber die body, be provided with the awl outside chimeric with described awl inner face.
3. lightning arrester as claimed in claim 1, it is characterized in that, described lightning arrester die body be provided with zinc oxide be main component the laminated unit of an arrester lamilated body that forms of a plurality of unit of an arrester, with the bonding conductor of the high-pressure side butt of described unit of an arrester lamilated body and with the pushing metalwork of the low-pressure side butt of described unit of an arrester lamilated body.
4. lightning arrester as claimed in claim 2, it is characterized in that, described lightning arrester die body be provided with zinc oxide be main component the laminated unit of an arrester lamilated body that forms of a plurality of unit of an arrester, with the bonding conductor of the high-pressure side butt of described unit of an arrester lamilated body and with the pushing metalwork of the low-pressure side butt of described unit of an arrester lamilated body.
5. as each the described lightning arrester in the claim 1～4, it is characterized in that the rearward end of described lightning arrester die body is passed the peristome of described equipment box and exported to the outside of described equipment box.
6. as each the described lightning arrester in the claim 1～4, it is characterized in that the rearward end of described sleeve is formed by the cylinder-like part of insulating properties, described cylinder-like part passes the peristome of described equipment box and is exported to the outside of described equipment box.
7. lightning arrester as claimed in claim 5 is characterized in that the rearward end of described sleeve is formed by the cylinder-like part of insulating properties, and described cylinder-like part passes the peristome of described equipment box and exported to the outside of described equipment box.
8. as each the described lightning arrester in the claim 1～4, it is characterized in that described sleeve is formed by the plastic resin of hard.
9. lightning arrester as claimed in claim 5 is characterized in that described sleeve is formed by the plastic resin of hard.
10. lightning arrester as claimed in claim 6 is characterized in that described sleeve is formed by the plastic resin of hard.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006062266A JP4550750B2 (en) | 2006-03-08 | 2006-03-08 | Arresta |
| JP062266/2006 | 2006-03-08 | ||
| PCT/JP2007/000162 WO2007102274A1 (en) | 2006-03-08 | 2007-03-02 | Arrester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101401269A CN101401269A (en) | 2009-04-01 |
| CN101401269B true CN101401269B (en) | 2011-08-03 |
Family
ID=38474716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800083233A Active CN101401269B (en) | 2006-03-08 | 2007-03-02 | Arrester |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1993177B1 (en) |
| JP (1) | JP4550750B2 (en) |
| KR (1) | KR101092655B1 (en) |
| CN (1) | CN101401269B (en) |
| TW (1) | TWI419428B (en) |
| WO (1) | WO2007102274A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324293B (en) * | 2011-07-29 | 2013-04-24 | 镇江巨能电气有限公司 | Manufacturing method of full-closed arrester |
| CN104051096A (en) * | 2013-05-03 | 2014-09-17 | 湖北文理学院 | Piezoresistor combination block |
| CN106486224A (en) * | 2016-10-18 | 2017-03-08 | 合肥浮点信息科技有限公司 | A kind of outdoor Communication Equipment thunder-lightning countermeasure set |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2344847Y (en) * | 1998-09-22 | 1999-10-20 | 西安神电避雷器有限公司 | Combined metal oxide lightning arrester with silicon rubber casing |
| CN2376053Y (en) * | 1999-05-19 | 2000-04-26 | 广州华盛避雷器实业有限公司 | Composite casing metal oxide arrester |
| JP2000232708A (en) * | 1999-02-09 | 2000-08-22 | Takaoka Electric Mfg Co Ltd | Lightning arrester |
| JP2001267108A (en) * | 2000-03-22 | 2001-09-28 | Nissin Electric Co Ltd | Lightning arrestor for gas-insulated switchgear |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57170218U (en) * | 1981-04-21 | 1982-10-26 | ||
| JPH0176107U (en) * | 1987-11-06 | 1989-05-23 | ||
| FR2629263A1 (en) * | 1988-03-25 | 1989-09-29 | Transfix Soc Nouv | Protection device for medium-voltage electrical apparatus |
| JPH0919039A (en) * | 1995-06-29 | 1997-01-17 | Showa Electric Wire & Cable Co Ltd | Termination-connection-part structure of electric apparatus |
| JP3181504B2 (en) * | 1996-02-19 | 2001-07-03 | 昭和電線電纜株式会社 | Power cable connection |
| DE19942633A1 (en) * | 1999-09-07 | 2001-03-08 | Abb Hochspannungstechnik Ag | Surge arresters |
| JP3897972B2 (en) * | 2000-10-27 | 2007-03-28 | 昭和電線ケーブルシステム株式会社 | Cable termination connection structure for electrical equipment |
| JP2003297608A (en) * | 2002-04-01 | 2003-10-17 | Meidensha Corp | Arrester |
| EP1603140A1 (en) * | 2004-06-04 | 2005-12-07 | ABB Technology AG | Active component for an encapsulated surge arrester |
| CN101116156B (en) * | 2004-12-10 | 2012-03-28 | 日本Ae帕瓦株式会社 | Arrestor and method of measuring leakage current of arrestor |
-
2006
- 2006-03-08 JP JP2006062266A patent/JP4550750B2/en active Active
-
2007
- 2007-03-02 CN CN2007800083233A patent/CN101401269B/en active Active
- 2007-03-02 KR KR1020087021971A patent/KR101092655B1/en active IP Right Grant
- 2007-03-02 EP EP07713544.0A patent/EP1993177B1/en active Active
- 2007-03-02 WO PCT/JP2007/000162 patent/WO2007102274A1/en active Application Filing
- 2007-03-07 TW TW096107845A patent/TWI419428B/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2344847Y (en) * | 1998-09-22 | 1999-10-20 | 西安神电避雷器有限公司 | Combined metal oxide lightning arrester with silicon rubber casing |
| JP2000232708A (en) * | 1999-02-09 | 2000-08-22 | Takaoka Electric Mfg Co Ltd | Lightning arrester |
| CN2376053Y (en) * | 1999-05-19 | 2000-04-26 | 广州华盛避雷器实业有限公司 | Composite casing metal oxide arrester |
| JP2001267108A (en) * | 2000-03-22 | 2001-09-28 | Nissin Electric Co Ltd | Lightning arrestor for gas-insulated switchgear |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1993177A1 (en) | 2008-11-19 |
| JP4550750B2 (en) | 2010-09-22 |
| KR20080105069A (en) | 2008-12-03 |
| JP2007242835A (en) | 2007-09-20 |
| TW200803099A (en) | 2008-01-01 |
| EP1993177B1 (en) | 2017-11-29 |
| CN101401269A (en) | 2009-04-01 |
| EP1993177A4 (en) | 2016-01-20 |
| KR101092655B1 (en) | 2011-12-13 |
| WO2007102274A1 (en) | 2007-09-13 |
| TWI419428B (en) | 2013-12-11 |
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Owner name: FUJI ELECTRIC CO., LTD. Free format text: FORMER OWNER: NIPPON AE PAVA CO., LTD. Effective date: 20121119 |
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Effective date of registration: 20121119 Address after: Kanagawa, Japan Patentee after: Fuji Electric Co., Ltd. Address before: Tokyo, Japan Patentee before: Nippon AE Pava Co., Ltd. |