CN205354779U - Thunderbolt flashover protector that 10kV can change with electricity - Google Patents
Thunderbolt flashover protector that 10kV can change with electricity Download PDFInfo
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- CN205354779U CN205354779U CN201620032938.6U CN201620032938U CN205354779U CN 205354779 U CN205354779 U CN 205354779U CN 201620032938 U CN201620032938 U CN 201620032938U CN 205354779 U CN205354779 U CN 205354779U
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Abstract
The utility model relates to a 10kV overhead line lightning protection device especially relates to a thunderbolt flashover protector that 10kV can change with electricity. The utility model discloses with high -pressure wire draw receive the fastener on, be equipped with 38~40mm air gap between drainage stick and the discharge electrode, make thunderbolt flashover protector can not receive the influence of power frequency voltage, switching overvoltage at ordinary times, and this clearance is the fixed interval, do not receive the influence of various natural weather. Having the lightning overvoltage, the clearance punctures, guarantees that thunderbolt flashover protector effectively moves, the discharge path of arc control, and the amplitude of restriction lightning overvoltage prevents insulator flashover accident, can cut power frequency continuous current fast when exchanging the zero crossing. Because of whole lightning protection device structure divide into the high pressure and operatable two parts to guarantee when 10kV overhead line normal operating, when operating personnel dismantles thunderbolt flashover protector, can not touch high -pressure wire, guarantee operating personnel's the safety and the normal operating of electric wire netting.
Description
Technical field
This utility model relates to 10kV Lightning protection of overhead transmission line device, and especially relating to a kind of 10kV can the lightning stroke flashover protector of charged for replacement.
Background technology
The lightning surge amplitude of 10kV overhead distribution is high, discharge time is short, and the dielectric level of 10kV distribution line is low, lightning surge can make insulator generation flashover, forms power frequency continued flow and make circuit lightning stroke trip and line-outage contingency occur on lightning stroke flashover passage.The main cause causing lightning fault is to build arc on lightning stroke flashover passage to form power frequency continued flow, causes metallicity disconnecting fault, and the temperature of arc root is significantly high, at short notice wire can be blown, even bare conductor, if the electric current passed through is very big, it is also possible to blown by wire.
Current China 10kV overhead transmission line lightning protection, what adopt is composite insulation cross arm, puncture arc-preventing metal utensil, lightning protection pillar insulator and the lightning protection device such as zero-clearance zinc oxide lightning arrester and the zero-clearance zinc oxide lightning arrester with series connection the air gap, but owing to there is deficiency on mounting structure, these lightning protection devices are in actual moving process, the problem that there is the following aspects: (1) lightning protection device is after installation and operation, the quality of lightning protection device cannot be judged, and its performance quality is detected, under power down mode, lightning protection device must be pulled down and just can detect；(2) the requirement according to power system, zero-clearance zinc oxide lightning arrester series products is putting into operation 5 years and must be replaced, and has a power failure and change the economic loss including power system and the enterprise thus brought production, and resident living also result in very big loss.
And the 10kV circuit that one power supply administration of county of China administers at present, few has tens, and many has up to a hundred, and in view of this, due to the defect on mounting structure, the economic loss caused is quite huge.
Utility model content
For solving problem above; this utility model provides a kind of 10kV can the lightning stroke flashover protector of charged for replacement; this protection zone can while effectively preventing lightning-caused breaking accident; reduce the tripping rate with lightning strike of circuit; and can really realize under electrical network normal operation, charged for replacement lightning protection device, thus reach to raise labour productivity; reduce loss, improve the purpose of the reliability of power supply.
The technical solution adopted in the utility model is: a kind of 10kV can the lightning stroke flashover protector of charged for replacement, including wire clamp briquetting, wire clamp seat, conduction stick, insulating sheath, plug, ball discharge fixation kit, flute profile pressing plate, spring, spring pressuring plate, draw ring, guide, fixing seat, connector, shell fragment, fixing support component and zero-clearance zinc oxide lightning arrester, it is characterized in that: described wire clamp briquetting lower end is connected with wire clamp seat upper end, described wire clamp seat side is fixed with conduction stick, the lower end of described wire clamp seat is fixing with plug upper end to be connected, the lower end of described plug is fixed with a support component, described fixing the plug between support component and wire clamp seat is provided with ball discharge fixation kit；Described ball discharge fixation kit side is provided with ball discharge, is provided with the air gap between described ball discharge and the discharge electrode of conduction stick, and described ball discharge fixation kit another side is provided with connecting plate；
Described connecting plate is connected with one end of flute profile pressing plate, and the other end of flute profile pressing plate is connected with spring pressuring plate, and the two ends of spring are separately fixed on flute profile pressing plate and spring pressuring plate；Described draw ring one terminates the high-pressure side of zero-clearance zinc oxide lightning arrester, and the other end contacts with spring pressuring plate；One end of described guide is connected with flute profile pressing plate, and the other end is opening-like towards zero-clearance zinc oxide lightning arrester direction；
The low-pressure end of described zero-clearance zinc oxide lightning arrester is connected with fixing seat one end, and described fixing seat is fixed by the fixing plate of connector and shell fragment and a fixing support component, is used for supporting and connecting zero-clearance zinc oxide lightning arrester.
As preferably, described wire clamp briquetting both sides are equipped with fixing threaded hole, and described wire clamp seat upper end is provided with standing screw；In the middle of described wire clamp briquetting, two sides is respectively provided with the semicircle slotted eye of a different size, is provided with clamp groove in the middle of described wire clamp seat upper end, and the semicircle slotted eye of described different size all can form folder with clamp groove；Described wire clamp seat lower end is provided with on plug fixing hole, for the upper end of stationary core rod；The side of described wire clamp seat is provided with conduction stick fixing hole.
As preferably, the insulating sheath of described conduction stick surface one layer of silastic material of parcel, described conduction stick one end is provided with fixing end, and the other end is provided with discharge electrode；Described ball discharge fixation kit includes ball discharge, the first steel pipe and connecting plate, described plug is fixed through the first steel pipe and described ball discharge fixation kit, described ball discharge one end is welded on the discharge electrode of the side of the first steel pipe, the described ball discharge other end and conduction stick and forms the air gap；Described connecting plate one end is welded on another side of the first steel pipe, and the described connecting plate other end is provided with connecting plate fixing hole；Described flute profile pressing plate is provided with flute profile pressing plate fixing hole, described spring pressuring plate is provided with spring pressuring plate fixing hole, described guide is provided with guide fixing hole, and flute profile pressing plate fixing hole, spring pressuring plate fixing hole and guide fixing hole are all fixing with connecting plate fixing hole to be connected.
As preferably, described flute profile pressing plate is provided with the first spring fixing head, and described spring tabletting is provided with the second spring fixing head, and the two ends of described spring are connected with flute profile pressing plate and spring tabletting respectively through the first spring fixing head and the second spring fixing head.
As preferably, the upper end of described draw ring side is provided with the union joint of the shrinkage pool being just inserted in spring pressuring plate, and this lower end, side is provided with a fixing threaded hole being connected with the high-pressure side screw rod of zero-clearance zinc oxide lightning arrester；Described draw ring opposite side is provided with an annulus.
As preferably, described guide being provided with the opening surface towards zero-clearance zinc oxide lightning arrester direction.
As preferably, described fixing seat upper end is provided with the low-pressure end fixing hole that the low-pressure end screw rod with zero-clearance zinc oxide lightning arrester is connected, and in the middle of described fixing seat, both sides are each provided with a square hole, and both sides, described fixing seat lower end are provided with union joint；Described fixing seat lower end is additionally provided with cambered surface, and described shell fragment one end is provided with shell fragment fixing hole, and the described shell fragment other end is provided with contact point, and the cambered surface of described fixing seat is in close contact with the contact point of shell fragment；
Described connector one end is provided with connector fixing hole, and described connector other end both sides are provided with fixing groove, and the union joint of described fixing seat is in close contact with the fixing groove of connector；
A described fixing support component includes the second steel pipe, gripper shoe and fixing plate, is provided with a circular hole, passes for plug in the middle of described second steel pipe；Described gripper shoe one end is welded on the side of the second steel pipe, and the described gripper shoe other end is provided with the gripper shoe fixing hole supported on angle steel being fixed on overhead line structures insulator；Described fixing plate one end is welded on the bottom of the second steel pipe opposite side, and the described fixing plate other end is provided with fixing plate fixing hole, and described fixing plate fixing hole, connector fixing hole, shell fragment fixing hole are connected with each other.
As preferably, the center of described zero-clearance zinc oxide lightning arrester is zinc oxide valve plate, described zero-clearance zinc oxide lightning arrester upper end is provided with high-pressure side screw rod, described high-pressure side screw rod is connected with the fixing threaded hole connecing draw ring, described zero-clearance zinc oxide lightning arrester lower end is provided with low-pressure end screw rod, and described low-pressure end screw rod is fixing with the low-pressure end fixing hole of fixing seat to be connected.
As preferably, described the air gap is 38～40mm.
As preferably, described insulating sheath is to be cast into opening shape by silastic material, and described insulating sheath is provided with the through wires hole entangling high-voltage connection, and the lower end of described through wires hole is provided with conduction stick wire hole, being provided with wire clamp trepanning bottom described insulating sheath, the opening part of described insulating sheath is provided with fastener hole.
This utility model obtains and provides the benefit that: is drawn by high-voltage conducting wires in this utility model and receives on wire clamp; 38～40mm the air gap between conduction stick and discharge electrode; make lightning stroke flashover protector will not be subject to the impact of power-frequency voltage, switching overvoltage at ordinary times; thus extending the service life of lightning stroke flashover protector; and this 38～40mm the air gap is fixed interval (FI), not by the impact of various natural weathers.There iing lightning surge, gap breakdown, it is ensured that lightning stroke flashover protector effective action, controlling the discharge path of electric arc, the amplitude of restriction lightning surge, it is prevented that insulator arc-over accident occurs, can quickly block power frequency continued flow when ac zero-crossing point.
High pressure and operable two parts it are divided into due to whole lightning protection device structure; high-pressure section is on a left side; operable portion is on the right side; centre plug is kept apart; thus ensureing when 10kV overhead transmission line is properly functioning; when operator dismantle lightning stroke flashover protector, high-voltage conducting wires will not be touched, it is ensured that the personal safety of operator and electrical network properly functioning.
When lightning stroke flashover protector is detected and changes by needs, the instrument link rod that a demand system is conventional, just easily can take off in network live situation and install lightning stroke flashover protector.
By above technological means so that this utility model have above a little:
1, device lightning protection device is fundamentally solved under electrical network normal operation, the purpose of charged dismounting and charged for replacement.
2, decrease due to detection and the replacing lightning protection device of having a power failure, the economic loss brought and the loss brought to people's daily life, work；
3, simple to operate, use 10kV link rod just lightning stroke flashover protector can be dismounted and install, do not affect supply of electric power, improve power supply reliability, decrease the labor intensity of workmen, improve the job security of workmen.
4, suitable in the installation of the various tower structure of 10kV overhead distribution.
Accompanying drawing explanation
Fig. 1 is that this utility model 10kV can the structural representation of lightning stroke flashover protector of charged for replacement.
Fig. 2 is the structural representation that Fig. 1 center line clamps block；
Fig. 3 is the structural representation of Fig. 1 center line holder；
Fig. 4 is the structural representation of conduction stick in Fig. 1；
Fig. 5 is the structural representation of insulating sheath in Fig. 1；
Fig. 6 is the structural representation of plug in Fig. 1；
Fig. 7 is the structural representation of ball discharge fixation kit in Fig. 1；
Fig. 8 is the structural representation of flute profile pressing plate in Fig. 1；
Fig. 9 is the structural representation of spring in Fig. 1；
Figure 10 is the structural representation of spring pressuring plate in Fig. 1；
Figure 11 is the structural representation of draw ring in Fig. 1；
Figure 12 is the structural representation of guide in Fig. 1；
Figure 13 is the structural representation fixing seat in Fig. 1；
Figure 14 is the structural representation of connector in Fig. 1；
Figure 15 is the structural representation of shell fragment in Fig. 1；
Figure 16 is the structural representation of a fixing support component in Fig. 1；
Figure 17 is the structural representation of zero-clearance zinc oxide lightning arrester in Fig. 1；
In figure: 1 wire clamp briquetting, 1.1,1.4 semicircle slotted eyes, 1.2,1.3 fixing threaded holes；2 wire clamp seats, 2.1 clamp grooves, 2.2,2.5 standing screws, 2.3 conduction stick fixing holes, 2.4 plug fixing holes；3 conduction sticks, 3.1 fixing ends, 3.2 discharge electrodes, 3.3 insulating coatings；4 insulating sheaths, 4.1 through wires holes, 4.2 conduction stick wire holes, 4.3 wire clamp trepannings, 4.4 fastener holes；5 plugs；6 composite sheaths；7 electric discharge fixation kits, 7.1 ball discharges, 7.2 first steel pipes, 7.3 connecting plates, 7.4 connecting plate fixing holes；8 flute profile pressing plates, 8.1 flute profile pressing plate fixing holes, 8.2 flute profile rag iron spring fixing head；9 springs；10 spring pressuring plates, 10.1 spring pressuring plate fixing holes, 10.2 spring pressuring plate spring fixing head, 10.3 shrinkage pools；11 draw rings, 11.1 union joints, 11.2 annulus, 11.3 high-pressure side fixing threaded holes；12 guides, 12.1 prerotation vanes, 12.2 guide fixing holes；13 fixing seats, 13.1 low-pressure end fixing holes, 13.2 cambered surfaces；13.3 union joint, 13.4 square holes；14 connectors, 14.1 connector fixing holes, 14.2 fixing grooves；15 shell fragments, 15.1 shell fragment fixing holes, 15.2 contact points；16 fixing support components, 16.1 second steel pipes, 16.2 fixing plates, 16.3 gripper shoes, 16.4 gripper shoe fixing holes, 16.5 fixing plate fixing holes；17 zero-clearance zinc oxide lightning arresters, 17.1 high-pressure side screw rods, 17.2 low-pressure end screw rods, 17.3 zinc oxide valve plates.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail, and following example are that this utility model is not limited to following example to explanation of the present utility model.
As shown in Figure 1; 10kV designed by this utility model can the lightning stroke flashover protector of charged for replacement, including wire clamp briquetting 1, wire clamp seat 2, conduction stick 3, insulating sheath 4, plug 5, composite sheath 6, ball discharge fixation kit 7, flute profile pressing plate 8, spring 9, spring pressuring plate 10, draw ring 11, guide 12, fixing seat 13, connector 14, shell fragment 15, fixing support component 16, a zero-clearance zinc oxide lightning arrester 17.
In conjunction with Fig. 2-3, wire clamp briquetting 1 is made up of aluminum alloy materials, and both sides are respectively equipped with fixing threaded hole 1.2 and fixing threaded hole 1.3, fixing threaded hole 1.2 and fixing threaded hole 1.3 and are each passed through standing screw 2.2 and the standing screw 2.5 of wire clamp seat 2 upper end；The middle two sides of wire clamp briquetting 1 is respectively provided with a semicircle slotted eye 1.1 and semicircle slotted eye 1.4, the clamp groove 2.1 of semicircle slotted eye 1.1 or semicircle slotted eye 1.4 and wire clamp seat 2 forms folder, for fixing high-voltage conducting wires, the semicircle slotted eye 1.1 of described wire clamp briquetting 1 is different with semicircle slotted eye 1.4 dimensions, is suitable for the installation of 10kV overhead transmission line all size wire diameter.
Wire clamp seat 2 is made up of aluminum alloy materials, and upper end is provided with two screws, respectively riveted joint standing screw 2.2 and standing screw 2.5, for fixing clamper briquetting 1；Wire clamp seat 2 lower end is provided with a plug fixing hole 2.4, for one end of stationary core rod 5；A conduction stick fixing hole 2.3 is set, for fixing the fixing end 3.1 of conduction stick in the middle of wire clamp seat 2；It is fixed under high-voltage conducting wires is drawn between wire clamp briquetting 1 and wire clamp seat 2 in clamp groove, and standing screw 2.2 on fixing holder 2 and standing screw 2.5 add plain cushion, spring washer respectively, nut is fixing tightens, fixing high-voltage conducting wires.
In conjunction with Fig. 4, conduction stick 3 is made up of aluminum alloy materials, and one end is provided with the fixing end 3.1 of a conduction stick fixing hole being fixed to wire clamp seat 2, and the other end is provided with a discharge electrode 3.2 forming a main gap with the ball discharge 7.1 of ball discharge fixation kit 7；The insulating sheath 3.3 of conduction stick 3 surface one layer of silastic material of parcel.
In conjunction with Fig. 5, insulating sheath 4 is by silastic material casting forming, and whole sheath is opening shape, and insulating sheath 4 is provided with a through wires hole 4.1 entangling high-voltage connection, it is provided with a conduction stick wire hole 4.2 in the lower end of through wires hole 4.1, bottom insulating sheath 4, is provided with a wire clamp trepanning 4.3；High-voltage connection connection entangles whole high-voltage connection bearing and wire clamp after fixing with insulating sheath 4, the fastener hole 4.4 of blend rubber nail fixed insulation sheath 4 opening part, it is prevented that the harmful substance such as rainwater, dust corrodes high-voltage connection bearing.
In conjunction with Fig. 6; plug 5 is made up of high strength glass fiber insulant; by designing requirement, wire clamp seat 2, the first steel pipe 7.2 of ball discharge fixation kit 7 and the second steel pipe 16.1 of support fixation kit 16 are fixed on plug 5; wherein ball discharge fixation kit 7 is in wire clamp seat 2 and supports between fixation kit 16; and with particular manufacturing craft crimping firmly; with silicone rubber insulation material; it is rolled into composite sheath 6, for being supported with low-pressure end and insulation by the high-pressure side of whole lightning stroke flashover protector with particular manufacturing craft die casting.
In conjunction with Fig. 7, ball discharge fixation kit 7 is made up of ball discharge the 7.1, first steel pipe 7.2 and connecting plate 7.3, ball discharge 7.1 is made up of round steel, ball discharge 7.1 one end is welded on one side of steel pipe 1, the discharge electrode 3.2 of the other end and conduction stick 3 forms 38～40mm primary air gap, is used for isolating power-frequency voltage and has during lightning surge to play arc discharge；First steel pipe 7.2 is made up of steel pipe, and plug 5, through the first steel pipe 7.2, is used for fixing ball discharge fixation kit 7；Connecting plate 7.3 is made up of iron plate, one end is welded on one side of the first steel pipe 7.2, two connecting plate fixing holes 7.4 of the other end are connected with the flute profile pressing plate fixing hole 8.1 of flute profile pressing plate 8, the spring pressuring plate fixing hole 10.1 of spring pressuring plate 10 and the guide fixing hole 12.2 of guide 12, are used for fixing flute profile pressing plate 8, spring pressuring plate 10 and guide 12.
In conjunction with Fig. 8, flute profile pressing plate 8 is made up of stainless steel material, one end is provided with two flute profile pressing plate fixing holes 8.1, it is fixed to screw rod respectively on the connecting plate fixing hole 7.4 of the first connecting plate of ball discharge fixation kit 7, the other end is provided with a connecting plate spring fixing head 8.2 that spring 9 can be made just to entangle, a spring 9 it is inserted between the 10.2 of the spring fixing head 2 of 8.2 and the spring pressuring plate 10 of the spring fixing head 1 of the 8 of the flute profile pressing plate of the 8 of flute profile pressing plate, by being inserted in a spring 9 between high-pressure side spring fixing head 8.2 and the spring pressuring plate spring fixing head 10.2 of spring pressuring plate 10 of the fixing zero-clearance zinc oxide lightning arrester 17 of the retractility of spring 9, high-pressure side by the fixing zero-clearance zinc oxide lightning arrester 17 of the retractility of spring 9.
In conjunction with Fig. 9, spring pressuring plate 10 is made up of corrosion resistant plate, one end is provided with two two spring pressuring plate fixing holes 10.1 being connected respectively with the flute profile pressing plate fixing hole 8.1 of flute profile pressing plate 8, other end particular manufacturing craft makes one while forming spring pressuring plate spring fixing head 10.2, just entangle spring 9 one end, another side forms shrinkage pool 10.3, just entangles the union joint 11.1 of draw ring 11.
In conjunction with Figure 10, T-Ring 11 is made with aluminum alloy materials, upper end, side is provided with the union joint 11.1 of the shrinkage pool 10.3 being just inserted in spring pressuring plate 10, and lower end is provided with a high-pressure side fixing threaded hole 11.3 being connected with the high-pressure side screw rod 17.1 of zero-clearance zinc oxide lightning arrester 17；Opposite side is provided with an annulus 11.2, and during for charged for replacement, convenience power system common tool link rod can easily catch on draw ring 11, takes off zero-clearance zinc oxide lightning arrester 17.
In conjunction with Figure 11, effective cooperation by flute profile pressing plate 8, spring 9 and spring pressuring plate 10, the high-pressure side of zero-clearance zinc oxide lightning arrester 17 can be fixed, zero-clearance zinc oxide lightning arrester 17 is made can not arbitrarily to rock after mounting, and can pass through to pull draw ring 11, zero-clearance zinc oxide lightning arrester 17 can be made again to take off.
In conjunction with Figure 12, guide 12 is made up of steel plate, one end arranges two guide fixing holes 12.2 being connected respectively with the flute profile pressing plate fixing hole 8.1 of flute profile pressing plate 8, the other end arranges the opening surface towards zero-clearance zinc oxide lightning arrester 17 direction, during for construction and installation zero-clearance zinc oxide lightning arrester 17 at the scene, it is intended that the scope of operation.
In conjunction with Figure 13, fixing seat 13 is made up of aluminum alloy materials, one end is provided with a low-pressure end fixing hole 13.1 being connected with the low-pressure end screw rod 17.3 of zero-clearance zinc oxide lightning arrester 17, for fixing zero-clearance zinc oxide lightning arrester, middle both sides are each provided with a square hole 13.4, during for installing zero-clearance zinc oxide lightning arrester 17, link rod is facilitated to catch on square hole 13.4, other end both sides are each provided with a union joint 13.3 being in close contact with the fixing groove 14.2 of connector 14, fixing seat 13 is additionally provided with a cambered surface 13.2 being in close contact with the contact point 15.2 of shell fragment 15.
In conjunction with Figure 14, connector 14 is made up of stainless steel material, one end is provided with the connector fixing hole 14.1 that the fixing plate fixing hole 16.5 with the gripper shoe 16.3 of a fixing support component 16 is connected, other end both sides are respectively arranged with the fixing groove 14.2 that the union joint 13.3 with fixing seat 13 is in close contact, and dismantle easily for zero-clearance zinc oxide lightning arrester and install.
In conjunction with Figure 15, shell fragment 15 is made up of stainless steel material, one end is provided with the shell fragment fixing hole 15.1 that the fixing plate fixing hole 16.5 of gripper shoe 16.3 and the connector fixing hole 14.1 of connector 14 with a fixing support component 16 are connected, the other end is provided with the contact point 15.2 that the cambered surface 13.2 with fixing seat 13 is in close contact, be easy to fixing seat 13 under installation and removal time with the curved slip of shell fragment 15, and the support angle steel for providing lightning current to be released to line insulator.
In conjunction with Figure 16, a fixing support component 16 is made up of the second steel pipe 16.1, fixing plate 16.2 and gripper shoe 16.3, and the second steel pipe 16.1 is made up of steel pipe, and the second steel pipe 16.1 is provided with one for plug 5 traverse circular hole；Gripper shoe 16.3 is made up of steel plate, and one end is welded on the second steel pipe 16.1, and the other end is provided with and is fixed on the support angle steel of overhead line structures insulator two gripper shoe fixing holes 16.4；Fixing plate 16.2 is made up of steel plate, one end is welded on the bottom of the second steel pipe 16.1, the other end is provided with the fixing plate fixing hole 16.5 that the shell fragment fixing hole 15.1 of the connector fixing hole 14.1 with connector 14 and shell fragment 15 is connected, and is used for supporting zero-clearance zinc oxide lightning arrester.
In conjunction with Figure 17, the center of zero-clearance zinc oxide lightning arrester 17 is zinc oxide valve plate 17.3, it is prevented that lightning surge and block power frequency continued flow；The high-pressure side screw rod 17.1 of zero-clearance zinc oxide lightning arrester 17 upper end connects the high-pressure side fixing threaded hole 11.3 of draw ring 11；The low-pressure end screw rod 17.2 of zero-clearance zinc oxide lightning arrester 17 lower end is fixed in the low-pressure end fixing hole 13.1 of fixing seat 13.So zero-clearance zinc oxide lightning arrester 17 is connected in parallel on insulation sides, plays the effect preventing lightning fault.
Zero-clearance zinc oxide lightning arrester 17 adopts the zero-clearance zinc oxide lightning arrester with external series gap for preventing lightning surge with block power frequency continued flow of the regulation meeting DL/T815-2002 " transmission line of alternation current polymeric metal oxide surge arrester " and GB11032-2000 " alternating current gapless metal oxide arrester " two standards.
Ball discharge fixation kit 7 and support fixation kit 16 surface adopt galvanizing to process.
Conduction stick 3 and the first steel pipe 7.2 and plug and the second steel pipe 16.1 and the junction of plug that support fixation kit 16 of the conduction stick fixing hole 2.3 of wire clamp seat 2, ball discharge fixation kit 7, crimp firmly with particular manufacturing craft.
Operation principle of the present utility model is:
The fixing threaded hole 1.2 at wire clamp briquetting 1 two ends and fixing threaded hole 1.3, standing screw 2.2 and standing screw 2.5 through wire clamp seat 2 upper end, folder is formed with wire clamp seat 2, and with plain cushion, spring washer, nut screwing clamping, fixing high-voltage connection, the upper end of plug fixing hole 2.4 stationary core rod 5 in the middle of wire clamp seat 2, the conduction stick fixing hole of wire clamp seat 2 side is for fixing the fixing end 3.1 of conduction stick 3, the discharge electrode 3.2 of the conduction stick other end forms 38～40mm the air gap with the ball discharge 7.1 of ball discharge fixation kit 7, by wire clamp seat 2, first steel pipe 7.2 of ball discharge fixation kit 7 and the second steel pipe 16.1 of support fixation kit 16 are fixed on plug 5；The spring pressuring plate fixing hole 10.1 of the flute profile pressing plate fixing hole 8.1 of flute profile pressing plate 8, spring pressuring plate 10 is fixed on the connecting plate fixing hole 7.4 of ball discharge fixation kit 7 together with the guide fixing hole 12.2 of guide 12, and is inserted in a spring 9 between the flute profile rag iron spring fixing head 8.2 and the spring pressuring plate spring fixing head 10.2 of spring pressuring plate 10 of flute profile pressing plate 8；The connector fixing hole 14.1 of the low-pressure end fixing hole 13.1 of fixing seat 13, connector 14 is fixed to together with the shell fragment fixing hole 15.1 of shell fragment 15 on the fixing plate fixing hole 16.5 of the gripper shoe 16.3 supporting fixation kit 16；Support the gripper shoe fixing hole 16.4 of the gripper shoe 16.3 of fixation kit 16, be fixed on the support angle steel of overhead line structures with screw rod；The cambered surface 13.2 of fixing seat 13 should be in close contact with the contact point 15.2 of shell fragment 15, and the union joint 13.3 of fixing seat 13 should be in close contact with the fixing groove 14.2 of connector 14, by the angle steel natural grounding of overhead line structures, makes lightning current form a discharge channel；The high-pressure side screw rod 17.1 of zero-clearance zinc oxide lightning arrester 17 connects the fixing threaded hole 11.3 of draw ring 11, low-pressure end screw rod 17.2 is fixed on the low-pressure end fixing hole 13.1 of fixing seat 13, the air gap can isolate power-frequency voltage, zero-clearance zinc oxide lightning arrester 17 is made to bear voltage hardly, can be failure to actuate in switching overvoltage, extend the service life of zero-clearance zinc oxide lightning arrester 17；Under the lightning surge effect that direct lightning strike or induced lightening produce, 38～40mm the air gap is breakdown, and zero-clearance zinc oxide lightning arrester 17 presents Low ESR, is released by lightning current into ground；After lightning impulse, power-frequency voltage loads on zero-clearance zinc oxide lightning arrester 17, when ac zero-crossing point, the resistance moment of zero-clearance zinc oxide lightning arrester 17 becomes big, the electric current passed through and arc current are suppressed in relatively low numerical value, and increase drops in the air gap arc voltage, and the insulation of the air gap recovers rapidly, electric arc naturally extinguishes in very short time, and power frequency continued flow is interdicted completely.
When to dismantle zero-clearance zinc oxide lightning arrester 17, the annulus 11.2 catching on draw ring 11 with the link rod that power system is conventional outwards firmly connects, make zero-clearance zinc oxide lightning arrester 17 and the perpendicular shape in ground, catch on the square hole 13.4 of fixing seat 13 again with link rod, just can take off zero-clearance zinc oxide lightning arrester to lifting up；After zero-clearance zinc oxide lightning arrester installs, the square hole 13.4 fixing seat 13 is caught on link rod, the union joint 13.3 of fixing seat 13 is put into accurately the fixing groove 14.2 of connector 14, then link rod is caught on the annulus 11.2 of the draw ring 11 of draw ring, by watching the position of the prerotation vane 12.1 of guide 12, firmly zero-clearance zinc oxide lightning arrester is pushed up, the union joint 11.1 making draw ring 11 is inserted in the shrinkage pool 8.3 of flute profile pressing plate 8, just completes zero-clearance zinc oxide lightning arrester dismounting under electrical network normal operation and installation.
Claims (10)
1. 10kV can the lightning stroke flashover protector of charged for replacement, including wire clamp briquetting (1), wire clamp seat (2), conduction stick (3), insulating sheath (4), plug (5), ball discharge fixation kit (7), flute profile pressing plate (8), spring (9), spring pressuring plate (10), draw ring (11), guide (12), fixing seat (13), connector (14), shell fragment (15), fixing support component (16) and zero-clearance zinc oxide lightning arrester (17), it is characterized in that: described wire clamp briquetting (1) lower end is connected with wire clamp seat (2) upper end, described wire clamp seat (2) side is fixed with conduction stick (3), the lower end of described wire clamp seat (2) is fixing with plug (5) upper end to be connected, the lower end of described plug (5) is fixed with a support component (16), is provided with ball discharge fixation kit (7) on described fixing the plug (5) between support component (16) and wire clamp seat (2)；Described ball discharge fixation kit (7) side is provided with ball discharge (7.1), being provided with the air gap between the discharge electrode (3.2) of described ball discharge (7.1) and conduction stick (3), described ball discharge fixation kit (7) another side is provided with connecting plate (7.3)；
Described connecting plate (7.3) is connected with one end of flute profile pressing plate (8), the other end of flute profile pressing plate (8) is connected with spring pressuring plate (10), and the two ends of spring (9) are separately fixed on flute profile pressing plate (8) and spring pressuring plate (10)；The high-pressure side of described draw ring (11) termination zero-clearance zinc oxide lightning arrester (17), the other end contacts with spring pressuring plate (10)；One end of described guide (12) is connected with flute profile pressing plate (8), and the other end is opening-like towards zero-clearance zinc oxide lightning arrester (17) direction；
The low-pressure end of described zero-clearance zinc oxide lightning arrester (17) is connected with fixing seat (13) one end, described fixing seat (13) is fixing with the fixing plate (16.2) of a fixing support component (16) by connector (14) and shell fragment (15), is used for supporting and connecting zero-clearance zinc oxide lightning arrester.
2. 10kV according to claim 1 can the lightning stroke flashover protector of charged for replacement; it is characterized in that: described wire clamp briquetting (1) both sides are respectively equipped with fixing threaded hole (1.2,1.3), and described wire clamp seat (2) upper end is provided with standing screw (2.2,2.5)；In the middle of described wire clamp briquetting (1), two sides is respectively provided with the semicircle slotted eye (1.1,1.4) of a different size, being provided with clamp groove (2.1) in the middle of described wire clamp seat (2) upper end, described semicircle slotted eye (1.1) or semicircle slotted eye (1.4) form folder with clamp groove (2.1)；Described wire clamp seat (2) lower end is provided with plug fixing hole (2.4), for the upper end of stationary core rod (5)；The side of described wire clamp seat (2) is provided with conduction stick fixing hole (2.3).
3. 10kV according to claim 1 can the lightning stroke flashover protector of charged for replacement; it is characterized in that: the insulating sheath (3.3) of described conduction stick (3) surface parcel silastic material; described conduction stick (3) one end is provided with fixing end (3.1), and the other end is provided with discharge electrode (3.2)；Described ball discharge fixation kit (7) includes ball discharge (7.1), the first steel pipe (7.2) and connecting plate (7.3), described plug (5) is fixed through the first steel pipe (7.2) with described ball discharge fixation kit (7), described ball discharge (7.1) one end is welded on the discharge electrode (3.2) of the side of the first steel pipe (7.2), described ball discharge (7.1) other end and conduction stick (3) and forms the air gap；Described connecting plate (7.3) one end is welded on another side of the first steel pipe (7.2), and described connecting plate (7.3) other end is provided with connecting plate fixing hole (7.4)；Described flute profile pressing plate (8) is provided with flute profile pressing plate fixing hole (8.1), described spring pressuring plate (10) is provided with spring pressuring plate fixing hole (10.1), described guide (12) is provided with guide fixing hole (12.2), and described flute profile pressing plate fixing hole (8.1), spring pressuring plate fixing hole (10.1) and guide fixing hole (12.2) are all fixing with connecting plate fixing hole (7.4) to be connected.
4. 10kV according to claim 1 can the lightning stroke flashover protector of charged for replacement; it is characterized in that: described flute profile pressing plate (8) is provided with the first spring fixing head (8.2); described spring tabletting (10) is provided with the second spring fixing head (10.2), and the two ends of described spring (9) are connected with flute profile pressing plate (8) and spring tabletting (10) respectively through the first spring fixing head (8.2) and the second spring fixing head (10.2).
5. 10kV according to claim 1 can the lightning stroke flashover protector of charged for replacement; it is characterized in that: the upper end of described draw ring (11) side is provided with the union joint (11.1) of the shrinkage pool (10.3) being just inserted in spring pressuring plate (10), this lower end, side is provided with a high-pressure side fixing threaded hole (11.3) being connected with the high-pressure side screw rod (17.1) of zero-clearance zinc oxide lightning arrester (17)；Described draw ring (11) opposite side is provided with an annulus (11.2).
6. 10kV according to claim 1 can the lightning stroke flashover protector of charged for replacement, it is characterised in that: described guide (12) is provided with the opening surface towards zero-clearance zinc oxide lightning arrester (17) direction.
7. 10kV according to claim 1 can the lightning stroke flashover protector of charged for replacement; it is characterized in that: described fixing seat (13) upper end is provided with the low-pressure end fixing hole (13.1) that the low-pressure end screw rod (17.2) with zero-clearance zinc oxide lightning arrester (17) is connected; in the middle of described fixing seat (13), both sides are each provided with square hole (13.4), and described fixing seat (13) both sides, lower end are provided with union joint (13.3)；Described fixing seat (13) lower end is additionally provided with cambered surface (13.2), described shell fragment (15) one end is provided with shell fragment fixing hole (15.1), described shell fragment (15) other end is provided with contact point (15.2), and the cambered surface (13.2) of described fixing seat (13) is in close contact with the contact point (15.2) of shell fragment (15)；
Described connector (14) one end is provided with connector fixing hole (14.1), described connector (14) other end both sides are provided with fixing groove (14.2), and the union joint (13.3) of described fixing seat (13) is in close contact with the fixing groove (14.2) of connector (14)；
A described fixing support component (16) includes the second steel pipe (16.1), fixing plate (16.2) and gripper shoe (16.3), it is provided with a circular hole in the middle of described second steel pipe (16.1), passes for plug (5)；Described gripper shoe (16.3) one end is welded on the side of the second steel pipe (16.1), and described gripper shoe (16.3) other end is provided with the gripper shoe fixing hole (16.4) supported on angle steel being fixed on overhead line structures insulator；Described fixing plate (16.2) one end is welded on the bottom of the second steel pipe (16.1) opposite side, described fixing plate (16.2) other end is provided with fixing plate fixing hole (16.5), and described fixing plate fixing hole (16.5), connector fixing hole (14.1), shell fragment fixing hole (15.1) are connected with each other.
8. 10kV according to claim 1 can the lightning stroke flashover protector of charged for replacement, it is characterized in that: the center of described zero-clearance zinc oxide lightning arrester (17) is zinc oxide valve plate (17.3), described zero-clearance zinc oxide lightning arrester (17) upper end is provided with high-pressure side screw rod (17.1), described high-pressure side screw rod (17.1) is connected with the high-pressure side fixing threaded hole (11.3) of draw ring (11), described zero-clearance zinc oxide lightning arrester (17) lower end is provided with low-pressure end screw rod (17.2), described low-pressure end screw rod (17.2) is fixing with the low-pressure end fixing hole (13.1) of fixing seat (13) to be connected.
9. 10kV according to claim 1 can the lightning stroke flashover protector of charged for replacement, it is characterised in that: described the air gap is 38～40mm.
10. 10kV according to claim 1 can the lightning stroke flashover protector of charged for replacement; it is characterized in that: described insulating sheath (4) is to be cast into opening shape by silastic material; described insulating sheath (4) is provided with the through wires hole (4.1) entangling high-voltage connection; the lower end of described through wires hole (4.1) is provided with conduction stick wire hole (4.2); described insulating sheath (4) bottom is provided with wire clamp trepanning (4.3), and the opening part of described insulating sheath (4) is provided with fastener hole (4.4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620032938.6U CN205354779U (en) | 2016-01-13 | 2016-01-13 | Thunderbolt flashover protector that 10kV can change with electricity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620032938.6U CN205354779U (en) | 2016-01-13 | 2016-01-13 | Thunderbolt flashover protector that 10kV can change with electricity |
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| CN205354779U true CN205354779U (en) | 2016-06-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514802A (en) * | 2016-01-27 | 2016-04-20 | 武汉水院电气有限责任公司 | Two-stage series gap lightning flashover protector capable of being replaced in electrified mode |
| CN117292884A (en) * | 2023-10-09 | 2023-12-26 | 国网山东省电力公司济南供电公司 | Energy-saving insulation protection device for overhead ground wire of high-voltage transmission line |
-
2016
- 2016-01-13 CN CN201620032938.6U patent/CN205354779U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514802A (en) * | 2016-01-27 | 2016-04-20 | 武汉水院电气有限责任公司 | Two-stage series gap lightning flashover protector capable of being replaced in electrified mode |
| CN117292884A (en) * | 2023-10-09 | 2023-12-26 | 国网山东省电力公司济南供电公司 | Energy-saving insulation protection device for overhead ground wire of high-voltage transmission line |
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