CN106033872B - Equipotential changes the instrument of the double soft bus strain insulators of simply connected - Google Patents

Equipotential changes the instrument of the double soft bus strain insulators of simply connected Download PDF

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Publication number
CN106033872B
CN106033872B CN201510108276.6A CN201510108276A CN106033872B CN 106033872 B CN106033872 B CN 106033872B CN 201510108276 A CN201510108276 A CN 201510108276A CN 106033872 B CN106033872 B CN 106033872B
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bottle
simply connected
card
plate
double soft
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CN106033872A (en
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朱建军
张运库
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State Grid Corp of China SGCC
Xiangyang Power Supply Co of State Grid Hubei Electric Power Co Ltd
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State Grid Corp of China SGCC
Xiangyang Power Supply Co of State Grid Hubei Electric Power Co Ltd
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Abstract

A kind of equipotential changes the instrument of the double soft bus strain insulators of simply connected, it is related to electric power overhaul technical field, preceding card is connected with blocking afterwards through insulation pulling plate, bottle stand is dragged to be connected respectively with preceding card, rear card, preceding card is provided with fixed yoke plate bayonet socket, it is additionally provided with and places right angle hanging plate bolt U-type groove, rear card is fixed provided with vertical U-type neck, horizontally U-shaped neck, insurance board component, wing nut to link string;Screw component, left and right rotation screw mandrel are connected with insulation pulling plate, and insulation pulling plate locking pin is fixed to insulation pulling plate;Bottle-holding rack locking pin is fastened to bottle-holding rack, and bulb pin is set on preceding card, and pellet, spring, plug screw position to bulb pin, and link string is by two link connections in tandem.The present invention is connected using yoke plate and right angle hanging plate with double soft buses, opposite side is connected with structure link in tandem with door frame, and its profile, function and place are different from existing instrument, the double soft bus-bar insulators of simply connected can more be changed jobs under the conditions of equipotential, it is simple in construction, it is workable.

Description

Equipotential changes the instrument of the double soft bus strain insulators of simply connected
Technical field
The present invention relates to electric power overhaul technical field, especially a kind of equipotential changes the double soft bus strain insulators of simply connected Instrument.
Background technology
In the prior art, the instrument for changing simply connected strain insulator has two kinds, is applied on transformer station's intercoil connection respectively Strain insulator change instrument, and apply the simply connected strain insulator electrification replacing tool on 110kV transmission lines of electricity.Its In, the former can not meet equipotential live line work condition, and the replacing of insulator must be completed under equipment power down mode;And the latter can only Carry out hotline maintenance on the simply connected strain insulator of 110kV transmission lines of electricity, insulation can not be changed on the double soft buses of transformer station Son.Also, both of which can not meet the double soft bus field apparatus situations of transformer station's simply connected, its forward and backward card can not be realized to list The fixation at the double soft bus strain insulator string both ends of connection, so as to which insulator chain can not be made to be in relaxed state, cannot also carry out Insulator more changes jobs.
There are a large amount of 110kV, 220kV buses in transformer station using the double soft bus connection types of simply connected(Simply connected strain insulator insulate The double soft form of bus bars of substring fastening), insulator inevitably deteriorates in longtime running(Low null value)Or flashover occurs, So as to influence the safe operation of bus, it is therefore necessary to the insulator of deterioration or flashover is changed in time.Due to prior art Deficiency, the mode of interruption maintenance insulator is generally taken in power industry, also changes the double soft mothers of simply connected without implementing equipotential The precedent of line insulator, trace it to its cause and be a lack of corresponding insulator clamp apparatus.
The content of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of equipotential and changes the double soft bus strain insulators of simply connected Instrument, to realize the needs of the hotline maintenance of the double soft bus strain insulators of 220 kV and following voltage class simply connected.
For achieving the above object, simply connected strain insulator string one end of the invention through yoke plate, right angle hanging plate with it is double soft Bus connects;The other end is connected through link string with transformer station door frame, it is characterised in that:Preceding card passes through two insulation pulling plates with rear card Connection, carrying simply connected strain insulator string drag bottle stand one end to couple through bottle supporting ring assemblies with preceding card, and the other end is consolidated through bottle-holding rack Determine component to connect with rear card;Card is provided with the bayonet socket of fixed yoke plate before described, is additionally provided with preceding card and places right angle hanging plate and bolt U-type groove.
Card is provided with vertical U-type neck, the horizontally U-shaped neck of fixed link string, insurance board component, wing nut after described Link string is fixed;Screw component, left and right rotation screw mandrel are connected through insulation pulling plate fixing port with insulation pulling plate, insulation pulling plate locking Pin is fixed to insulation pulling plate;The bottle-holding rack locking pin of bottle-holding rack fixation kit fastens to bottle-holding rack.
Card connecting hole one after described insulation pulling plate one end is provided with, the other end are provided with multiple preceding card connecting holes.
The bottle-holding rack by two cylindrical insulating bars through being spaced adjustable plate connection, after being provided with block by cylindrical insulating bar one end Connecting hole two.
The bulb pin that card is provided with the through hole of connection insulation pulling plate and locked to it before described, pellet, spring, plug screw pair Bulb pin screens.
The link string is by two link connections in tandem.
Double soft buses are connected through yoke plate, right angle hanging plate and hydraulic strain clamp with simply connected strain insulator string.
Soft bus interval wire clamp is provided between double soft buses.
Compared with prior art, the present invention is different from the work of existing same type in terms of profile, function and field of employment Tool, realizes more the changing jobs to the double soft bus-bar insulators of simply connected under the conditions of equipotential, and the present invention mainly realizes following three The effect of individual aspect:
Effect one:Realize under the conditions of equipotential to the replacement operation of the double soft bus-bar insulators of simply connected, solve to change insulation The period of the day from 11 p.m. to 1 a.m must cause the problem that bus has a power failure, and reduce bus grid switching operation program, mitigate the labor intensity of operating personnel, operating efficiency It is improved, ensures power supply reliability and maintenance benefit.
Effect two:Preceding card realizes the fixation to the double soft bus strain insulator string bus end yoke plates of simply connected, wherein preceding card The key position such as bayonet socket, U-type groove, bottle supporting ring and through hole it is reasonable in design, matched with field apparatus and fixed.
Effect three:Card realizes the fixation to the double soft bus strain insulator string door frame end link strings of simply connected afterwards, wherein after The key position such as vertical U-type neck, the horizontally U-shaped neck of card, insurance board component, wing nut and link String matching are reasonable, real Now to the firm fixation of link string.
The present invention is simple in construction, easy to use, workable.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the use state diagram of the present invention.
Fig. 3 is the preceding card structure schematic diagram of the present invention.
Fig. 4 is Fig. 3 side view.
Fig. 5 is Fig. 3 top view.
Fig. 6 is the rear card structure schematic diagram of the present invention.
Fig. 7 is Fig. 6 upward view.
Fig. 8 is the insulation pulling plate structural representation of the present invention.
Fig. 9 is the bottle-holding rack structural representation of the present invention.
In figure, 1, preceding card, 2, rear card, 3, insulation pulling plate, 4, bottle-holding rack, 5, transformer station's door frame, 6, link, 7, link string, 8th, simply connected strain insulator string, 9, yoke plate, 10, right angle hanging plate, 11, double soft buses, 12, hydraulic strain clamp, 13, soft bus It is spaced wire clamp, 14, bayonet socket, 15, U-type groove, 16, bottle supporting ring assemblies, 17, pellet, 18, spring, 19, plug screw, 20, bulb pin, 21st, through hole, 22, vertical U-type neck, 23, horizontally U-shaped neck, 24, insurance board component, 25, wing nut, 26, screw component, 27th, left and right rotation screw mandrel, 28, insulation pulling plate fixing port, 29, insulation pulling plate locking pin, 30, bottle-holding rack fixation kit, 31, bottle supporting Frame locking pin, 32, rear card connecting hole one, 33, preceding card connecting hole, 34, rear card connecting hole two, 35, cylindrical insulating bar, 36, Every adjustable plate.
Embodiment
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, the one end of simply connected strain insulator string 8 is through LV-0712 types yoke plate 9, Z-10 Type right angle hanging plate 10 is connected with double soft buses 11;The other end is connected through U-10 type links string 7 with transformer station door frame 5, and preceding card 1 is with after Card 2 is connected by two insulation pulling plates 3, and carrying simply connected strain insulator string 8 drags the one end of bottle stand 4 through bottle supporting ring assemblies 16 with before The connection of card 1, the other end block 2 through bottle-holding rack fixation kit 30 with after and are connected;Bottle supporting ring assemblies 16, bottle-holding rack fixation kit 30 are distinguished On preceding card 1, rear card 2;Card 1 is provided with the bayonet socket 14 of fixed yoke plate 9 before described, is additionally provided with preceding card 1 and places right angle hanging plate 10 and the U-type groove 15 of bolt, it is the bolt headspace on Z-10 types right angle hanging plate 10, to block the energy of bayonet socket 14 on 1 before guarantee LV-0712 types yoke plate 9 is fixed.
The link string 7 is by two 6 connections in tandem of Z-10 types link.
Double soft buses 11 are through LV-0712 types yoke plate 9, Z-10 types right angle hanging plate 10 and hydraulic strain clamp 12 and list Connection strain insulator string 8 connects.
Soft bus interval wire clamp 13 is provided between double soft buses 11.
Card 1 is provided with the bulb pin 20 locked to insulation pulling plate 3 before described, and pellet 17, spring 18, plug screw 19 are to bulb Pin 20 positions, and prevents insulation pulling plate 3 from being come off from through hole 21.
As shown in Figure 6, Figure 7, the rear card 2 is provided with vertical U-type neck 22, the horizontally U-shaped necks of fixed link string 7 23, wherein, vertical U-type neck 22 places first of connection in tandem(Door frame side)U-10 types link 6, horizontally U-shaped neck 23 is put Put second U-10 types link 6 of connection in tandem;Insurance board component 24, wing nut 25 are used cooperatively and link string 7 are fixed.
Screw component 26, left and right rotation screw mandrel 27 are connected through insulation pulling plate fixing port 28 with insulation pulling plate 3, left and right rotation screw mandrel 27, by adjusting screw mandrel, realize the control to preceding card 1,2 spacing of rear card, so that simply connected strain insulator string 8 reaches loose shape State or tightening state.Its adjustable extent width is between 0-18cm.
Insulation pulling plate locking pin 29 is fixed to insulation pulling plate 3, prevents insulation pulling plate 3 from sliding;Bottle-holding rack fixation kit 30 Bottle-holding rack locking pin 31 is connected with rear card connecting hole 2 34, and bottle-holding rack 4 is fastened.
The preceding card 1 of the present invention, 2 main parts of rear card are manufactured using aluminum alloy materials(Also titanium alloy material can be used), Live load reaches 30KN, and dynamic test load reaches 30KN, can meet the maintenance requirement of the double soft bus equipments of transformer station's simply connected.
As shown in figure 8, described one end of insulation pulling plate 3 is provided with the rear card connecting hole being connected with rear card insulation pulling plate fixing port 28 One 32;The other end is connected provided with multiple alternative preceding card connecting holes 33 with preceding cartoon hole 21, according to simply connected strain insulator The length of string 8 selects suitable preceding card connecting hole 33 on insulation pulling plate 3, to adapt to different types of simply connected strain insulator string 8 requirement.
As shown in figure 9, the bottle-holding rack 4 is connected by two cylindrical insulating bars 35 through being spaced adjustable plate 36, interval regulation Plate 36 can adjust the spacing of cylindrical insulating bar 35, and spacing range is between 0-20cm, convenience in transport and keeping;It is cylindrical exhausted Card connecting hole 2 34 after the one end of edge rod 35 is provided with, it is connected with rear Kato bottle stand fixation kit 30, and it is right by bottle-holding rack locking pin 31 It is fastened;Cylindrical insulating bar 35 is made up of High Performance Insulation material, can bear larger mechanical load.
In use, the present invention is carried out according to the following steps:
The first step:Ground handling operator assembles to preceding card 1, rear card 2 and insulation pulling plate 3, need to strictly be held in assembling Row following steps:1st, the through hole 21 of 1 left and right sides of card before one end of two insulation pulling plates 3 is each passed through, according to live double soft buses The length of insulator chain 8, suitable preceding card connecting hole 33 is selected, and locked insulation pulling plate 3 with bulb pin 20.2nd, 2 are blocked afterwards Before being assembled with insulation pulling plate 3, left and right rotation screw mandrel 27 is first adjusted, the length for making left and right screw mandrel is half of total length or so;Again Insulation pulling plate fixing port 28 after the other end of two insulation pulling plates 3 is respectively put on card 2, and by insulation pulling plate locking pin 29 Locking.
Second step:Ground handling operator is by being arranged on transformer station's door frame 5 and the coaster at double soft 11 liang of buses, with insulation The preceding card 1 assembled, rear card 2 and insulation are drawn 3 plates to pass to equipotential live line work personnel and power transformation on double soft buses 11 by rope The ground potential operator to stand on door frame 5.
3rd step:The bayonet socket 14 of preceding card 1 is stuck in the LV- between two Z-10 types right angle hanging plates 10 by equipotential live line work personnel On the edge of 0712 type yoke plate 9, while ground potential operator is by vertical U-type neck 22 and the horizontally U-shaped neck 23 on rear card 2 It is respectively implanted on the U-10 type links string 7 of two connections in tandem of door frame side, covers insurance board component 24, and with wing nut 25 It is firm that U-10 type links string 7 is fastened.
4th step:Bottle-holding rack 4 is transferred to equipotential live line work personnel and ground potential operator by ground handling operator, by etc. Before current potential operating personnel first puts one end of bottle-holding rack 4 into respectively in 1 two bottle supporting ring assemblies 16 of card, then by earth potential working people Card connecting hole 2 34 after bottle-holding rack 4 is respectively implanted rear Kato bottle stand fixation kit 30 by member, and is fastened with bottle-holding rack locking pin 31.
5th step:After instrument installs, left and right rotation screw mandrel 27 is blocked after ground potential operator's regulation, until simply connected is resistance to Open insulator chain 8 and be in complete relaxed state, bottle-holding rack 4 undertakes the total weight of insulator chain.
6th step:According to bus-bar insulator deterioration or the degree of flashover, two ways is taken to change insulator:1、 Whole string is changed:Cooperated by equipotential personnel and ground potential personnel and passed after pulling down bunch of insulator string by both ends coaster New insulator chain is passed to equipotential and ground potential operator by younger brother again to ground, ground handling operator, realizes whole string insulation The replacing of son.2nd, part is changed:The insulator pair for needing to change is taken by equipotential live line work personnel or ground potential operator It is changed.
7th step:After replacing insulator end-of-job, left and right rotation screw mandrel 27 is blocked after being adjusted by earth potential working person, is recovered The original stress of insulator chain.
8th step:Card 1, afterwards card 2, insulation pulling plate 3 and bottle-holding rack 4, dismounting order are opposite with installation process before removing.
9th step:After instrument is removed completely, ground is transferred to by insulation ropes.Ground potential operator makees with equipotential Industry personnel depart from bus equipment and return to ground, and everything goes well with your work completes for replacing insulator.

Claims (6)

1. a kind of equipotential changes the instrument of the double soft bus strain insulators of simply connected, simply connected strain insulator string(8)One end is through connection Plate(9), right angle hanging plate(10)With double soft buses(11)Connection;The other end is through link string(7)With transformer station's door frame(5)Connection, its It is characterised by:Preceding card(1)With rear card(2)Pass through two insulation pulling plates(3)Connection, carry simply connected strain insulator string(8)Drag Bottle stand(4)One end is through bottle supporting ring assemblies(16)With preceding card(1)Connection, the other end is through bottle-holding rack fixation kit(30)With rear card(2) Connection;Block before described(1)It is provided with fixed yoke plate(9)Bayonet socket(14), preceding card(1)On be additionally provided with place right angle hanging plate(10)And The U-type groove of bolt(15);
Block after described(2)It is provided with fixed link string(7)Vertical U-type neck(22), horizontally U-shaped neck(23), safeguard group Part(24), wing nut(25)To link string(7)It is fixed;Screw component(26), left and right rotation screw mandrel(27)Fixed through insulation pulling plate Mouthful(28)With insulation pulling plate(3)Connection, insulation pulling plate locking pin(29)To insulation pulling plate(3)It is fixed;Bottle-holding rack fixation kit (30)Bottle-holding rack locking pin(31)To bottle-holding rack(4)Fastening;
Block before described(1)It is provided with connection insulation pulling plate(3)Through hole(21)And the bulb pin locked to it(20), pellet (17), spring(18), plug screw(19)To bulb pin(20)Screens.
2. equipotential according to claim 1 changes the instrument of the double soft bus strain insulators of simply connected, it is characterised in that:Institute State insulation pulling plate(3)Card connecting hole one after one end is provided with(32), the other end is provided with multiple preceding card connecting holes(33).
3. equipotential according to claim 1 changes the instrument of the double soft bus strain insulators of simply connected, it is characterised in that:Institute State bottle-holding rack(4)By two cylindrical insulating bars(35)Through being spaced adjustable plate(36)Connection, cylindrical insulating bar(35)One end is set Card connecting hole two after having(34).
4. equipotential according to claim 1 changes the instrument of the double soft bus strain insulators of simply connected, it is characterised in that:Institute State link string(7)By two links(6)Connection in tandem.
5. equipotential according to claim 1 changes the instrument of the double soft bus strain insulators of simply connected, it is characterised in that:Institute State double soft buses(11)Through yoke plate(9), right angle hanging plate(10)And hydraulic strain clamp(12)With simply connected strain insulator string(8) Connection.
6. equipotential according to claim 1 changes the instrument of the double soft bus strain insulators of simply connected, it is characterised in that:Institute State double soft buses(11)Between be provided with soft bus interval wire clamp(13).
CN201510108276.6A 2015-03-12 2015-03-12 Equipotential changes the instrument of the double soft bus strain insulators of simply connected Active CN106033872B (en)

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* Cited by examiner, † Cited by third party
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CN108512120A (en) * 2018-05-30 2018-09-07 广东电网有限责任公司 Insulator replacement tool
CN111313320B (en) * 2020-02-24 2021-07-27 国网福建省电力有限公司龙岩供电公司 Replacing device for replacing strain insulator string in electrified manner
CN115149455A (en) * 2022-05-13 2022-10-04 国网江苏省电力有限公司超高压分公司 Tool and method for replacing tension insulator of extra-high voltage line

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US5377402A (en) * 1993-10-27 1995-01-03 Semple, Jr.; Alan R. Electrical insulator change-out tool
CN201336531Y (en) * 2009-01-13 2009-10-28 福建省三明电业局 Clamping tool for replacing charged insulators of pre-stranded hardware fittings
CN201438396U (en) * 2009-06-29 2010-04-14 中国电力工程顾问集团公司 Double I-shaped and V-shaped strain insulator strings for ultra-high voltage substation
CN203014262U (en) * 2012-02-28 2013-06-19 云南电网公司带电作业分公司 V-shaped twin insulator string replacement fixture for compact type 500kV transmission line
CN103746313A (en) * 2013-12-16 2014-04-23 国家电网公司 Protection strengthening type wing-shaped fixture
CN104252926A (en) * 2014-10-13 2014-12-31 国家电网公司 Combined type strain insulator string of overhead transmission line
CN104361958A (en) * 2014-11-20 2015-02-18 国家电网公司 Quintuplet double-hanging-point strain insulator string
CN204424804U (en) * 2015-03-12 2015-06-24 国家电网公司 Equipotential changes the instrument of the two soft bus strain insulator of simply connected

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5377402A (en) * 1993-10-27 1995-01-03 Semple, Jr.; Alan R. Electrical insulator change-out tool
CN201336531Y (en) * 2009-01-13 2009-10-28 福建省三明电业局 Clamping tool for replacing charged insulators of pre-stranded hardware fittings
CN201438396U (en) * 2009-06-29 2010-04-14 中国电力工程顾问集团公司 Double I-shaped and V-shaped strain insulator strings for ultra-high voltage substation
CN203014262U (en) * 2012-02-28 2013-06-19 云南电网公司带电作业分公司 V-shaped twin insulator string replacement fixture for compact type 500kV transmission line
CN103746313A (en) * 2013-12-16 2014-04-23 国家电网公司 Protection strengthening type wing-shaped fixture
CN104252926A (en) * 2014-10-13 2014-12-31 国家电网公司 Combined type strain insulator string of overhead transmission line
CN104361958A (en) * 2014-11-20 2015-02-18 国家电网公司 Quintuplet double-hanging-point strain insulator string
CN204424804U (en) * 2015-03-12 2015-06-24 国家电网公司 Equipotential changes the instrument of the two soft bus strain insulator of simply connected

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