CN106033872A - Tool for equipotential replacement of single-joint double-flexible bus tension insulator - Google Patents
Tool for equipotential replacement of single-joint double-flexible bus tension insulator Download PDFInfo
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- CN106033872A CN106033872A CN201510108276.6A CN201510108276A CN106033872A CN 106033872 A CN106033872 A CN 106033872A CN 201510108276 A CN201510108276 A CN 201510108276A CN 106033872 A CN106033872 A CN 106033872A
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- strain insulator
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- simply connected
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Abstract
The invention, which relates to the technical field of electric power overhaul, provides a tool for equipotential replacement of a single-joint double-flexible bus tension insulator. A front clamping plate and a rear clamping plate are connected in an insulating pulling plate; a bracket is connected with the front clamping plate and the rear clamping plate respectively; a fixed connecting plate bayonet is arranged on the front clamping plate and U-shaped grooves for placing a right-angle hanging plate and a bolt are formed in the front clamping plate; and a vertical U-shaped clamp groove and a horizontal U-shaped clamp groove are formed in the rear clamping unit. A suspension loop string is fixed by a safety board assembly and a bufferfly nut. A lead screw assembly, a left rotating lead screw and a right rotating lead screw are connected with the insulating pulling plate. An insulating pulling plate locking pin fixes the insulating pulling plate; and the bracket is fastened by a bracket locking pin. Besides, a ball head pin is arranged at the front clamping plate; a marble, a spring, and a plug screw are used for localizing the ball head pin. The suspension loop string is formed by two suspension loops in series connection. According to the invention, the connecting plate, the right-angle hanging plate, and the double-flexible bus are connected and the suspension loops are connected with a portal at the other side based on a series connection structure, so that the provided tool is different from the existing ones in terms of appearance, functions, and application occasions; and the tool can be applied to replacement work of a single-joint double-flexible bus tension insulator on the equipotential condition. Moreover, the tool with a simple structure has high operability.
Description
Technical field
The present invention relates to electric power overhaul technical field, a kind of isoelectric level changes the instrument of the double soft bus strain insulator of simply connected.
Background technology
In prior art, the instrument changing simply connected strain insulator has two kinds, is that the strain insulator being applied on transformer station's intercoil connection changes instrument respectively, and applies the simply connected strain insulator electrification replacing tool on 110kV transmission line of electricity.Wherein, the former can not meet equipotential live line work condition, and the replacing of insulator must complete under equipment power down mode；And the latter can only carry out hotline maintenance on the simply connected strain insulator of 110kV transmission line of electricity, it is impossible to change insulator on the double soft bus of transformer station.And, both of which cannot meet the double soft bus field apparatus situation of transformer station's simply connected, its forward and backward card can not realize soft bus strain insulator string two ends double to simply connected and fix, thus insulator chain cannot be made to be in relaxed state, also cannot carry out more changing jobs of insulator.
A large amount of 110kV, 220kV bus is had to use the double soft bus connection type of simply connected (the double soft form of bus bars of simply connected strain insulator string fastening) in transformer station, insulator inevitably occurs deteriorating (low null value) or flashover occurring in longtime running, thus affect the safe operation of bus, it is therefore necessary in time the insulator of deterioration or flashover is replaced.Due to the deficiencies in the prior art, in power industry, generally take the mode of interruption maintenance insulator, the most do not implement isoelectric level and change the precedent of the double soft bus-bar insulator of simply connected, trace it to its cause and be a lack of corresponding insulator clamp apparatus.
Summary of the invention
For overcoming the deficiencies in the prior art, the present invention provides a kind of isoelectric level to change the instrument of the double soft bus strain insulator of simply connected, to realize the needs of the hotline maintenance of the double soft bus strain insulator of the simply connected of 220 kV and following electric pressure.
For achieving the above object, simply connected strain insulator string one end of the present invention is connected with double soft buses through yoke plate, right angle link plate；The other end is connected with transformer station door frame through link string, it is characterized in that: front card is connected by two insulation pulling plates with rear card, bottle stand one end of dragging of carrying simply connected strain insulator string couples with front the card through bottle supporting ring assemblies, the other end through bottle-holding rack fixation kit with after block and be connected；Before described, card is provided with the bayonet socket of fixing yoke plate, and front card is additionally provided with placement right angle link plate and the U-type groove of bolt.
After described, card is provided with the vertical U-type draw-in groove of fixing link string, horizontally U-shaped draw-in groove, and link string is fixed by safeguard assembly, wing nut；Screw component, left and right rotation screw mandrel are connected with insulation pulling plate through insulation pulling plate fixing port, and insulation pulling plate is fixed by insulation pulling plate locking pin；Bottle-holding rack is fastened by the bottle-holding rack locking pin of bottle-holding rack fixation kit.
Described insulation pulling plate one end be provided with after card connecting hole one, the other end is provided with multiple front card connecting hole.
Described bottle-holding rack is connected through interval adjustable plate by two cylindrical insulating bars, cylindrical insulating bar one end be provided with after card connecting hole two.
Before described, card is provided with the through hole connecting insulation pulling plate and the bulb pin locking it, and pellet, spring, plug screw are to bulb pin screens.
Described link string is by two link connections in tandem.
Described double soft bus is connected with simply connected strain insulator string through yoke plate, right angle link plate and hydraulic strain clamp.
Soft bus interval wire clamp it is provided with between described double soft bus.
Compared with prior art, the present invention is all different from the instrument of existing same type in terms of profile, function and field of employment, it is achieved that more the changing jobs of soft bus-bar insulators double to simply connected under the conditions of isoelectric level, and the present invention mainly achieves the effect in terms of three below:
Effect one: realize the replacing operation of soft bus-bar insulators double to simply connected under the conditions of isoelectric level, solve must cause when changing insulator the difficult problem that bus has a power failure, reduce bus grid switching operation program, alleviate the labor intensity of operating personnel, work efficiency is improved, it is ensured that power supply reliability and maintenance benefit.
Effect two: front card achieves soft bus strain insulator string bus end yoke plate double to simply connected and fix, wherein before the key position such as the bayonet socket, U-type groove, bottle supporting ring and the through hole that block reasonable in design, match with field apparatus and fixed.
Effect three: rear card achieves soft bus strain insulator string door frame end link string double to simply connected and fixes, the vertical U-type draw-in groove that blocks the most afterwards, horizontally U-shaped draw-in groove, the key positions such as safeguard assembly, wing nut are reasonable with link String matching, it is achieved firm to link string is fixed.
Present configuration is simple, easy to use, workable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the use view of the present invention.
Fig. 3 is the front card structure schematic diagram of the present invention.
Fig. 4 is the side view of Fig. 3.
Fig. 5 is the top view of Fig. 3.
Fig. 6 is the rear card structure schematic diagram of the present invention.
Fig. 7 is the upward view of Fig. 6.
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.
nullIn figure，1、Front card，2、Rear card，3、Insulation pulling plate，4、Bottle-holding rack，5、Transformer station's door frame，6、Link，7、Link string，8、Simply connected strain insulator string，9、Yoke plate，10、Right angle link plate，11、Double soft buses，12、Hydraulic strain clamp，13、Soft bus interval wire clamp，14、Bayonet socket，15、U-type groove，16、Bottle supporting ring assemblies，17、Pellet，18、Spring，19、Plug screw，20、Bulb pin，21、Through hole，22、Vertical U-type draw-in groove，23、Horizontally U-shaped draw-in groove，24、Safeguard assembly，25、Wing nut，26、Screw component，27、Left、Dextrorotation screw mandrel，28、Insulation pulling plate fixing port，29、Insulation pulling plate locking pin，30、Bottle-holding rack fixation kit，31、Bottle-holding rack locking pin，32、Rear card connecting hole one、33、Front card connecting hole，34、Rear card connecting hole two，35、Cylindrical insulating bar，36、Interval adjustable plate.
Detailed description of the invention
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, simply connected strain insulator string 8 one end is connected with double soft buses 11 through LV-0712 type yoke plate 9, Z-10 type right angle link plate 10；The other end is connected with transformer station door frame 5 through U-10 type link string 7, front card 1 is connected by two insulation pulling plates 3 with rear card 2, bottle stand 4 one end of dragging of carrying simply connected strain insulator string 8 couples with front card 1 through bottle supporting ring assemblies 16, the other end through bottle-holding rack fixation kit 30 with after card 2 be connected；Bottle supporting ring assemblies 16, bottle-holding rack fixation kit 30 block 1, block on 2 afterwards before being attached separately to；Before described, card 1 is provided with the bayonet socket 14 of fixing yoke plate 9, front card 1 is additionally provided with placement right angle link plate 10 and the U-type groove 15 of bolt, for the bolt headspace on Z-10 type right angle link plate 10, can be fixed LV-0712 type yoke plate 9 with the bayonet socket 14 on card 1 before ensureing.
Described link string 7 is by the connection in tandem of two Z-10 type links 6.
Described double soft bus 11 is connected with simply connected strain insulator string 8 through LV-0712 type yoke plate 9, Z-10 type right angle link plate 10 and hydraulic strain clamp 12.
Soft bus interval wire clamp 13 it is provided with between described double soft bus 11.
Before described, card 1 is provided with the bulb pin 20 to insulation pulling plate 3 locking, and bulb pin 20 is positioned by pellet 17, spring 18, plug screw 19, prevents insulation pulling plate 3 from coming off from through hole 21.
As shown in Figure 6, Figure 7, after described, card 2 is provided with the vertical U-type draw-in groove 22 of fixing link string 7, horizontally U-shaped draw-in groove 23, wherein, vertical U-type draw-in groove 22 places first (door frame side) U-10 type link 6 of connection in tandem, and horizontally U-shaped draw-in groove 23 places second U-10 type link 6 of connection in tandem；Safeguard assembly 24, wing nut 25 are fixed with the use of to link string 7.
Screw component 26, left and right rotation screw mandrel 27 are connected with insulation pulling plate 3 through insulation pulling plate fixing port 28, left and right rotation screw mandrel 27 is by regulation screw mandrel, realize front card 1, the rear control blocking 2 spacing, so that simply connected strain insulator string 8 reaches relaxed state or tightens up state.Its adjustable extent width is between 0-18cm.
Insulation pulling plate 3 is fixed by insulation pulling plate locking pin 29, prevents insulation pulling plate 3 landing；The bottle-holding rack locking pin 31 of bottle-holding rack fixation kit 30 is connected with rear card connecting hole 2 34, fastens bottle-holding rack 4.
The front card 1 of the present invention, rear card 2 main parts all use aluminum alloy materials manufacture (may be used without titanium alloy material), and workload reaches 30KN, and dynamic test load reaches 30KN, can meet the maintenance requirement of the double soft bus equipment of transformer station's simply connected.
As shown in Figure 8, described insulation pulling plate 3 one end is provided with the rear card connecting hole 1 being connected with rear card insulation pulling plate fixing port 28；The other end is provided with multiple alternative front card connecting hole 33 and is connected with front card through hole 21, and card connecting hole 33 before selecting on insulation pulling plate 3 suitably according to the length of simply connected strain insulator string 8, to adapt to the requirement of different types of simply connected strain insulator string 8.
As it is shown in figure 9, described bottle-holding rack 4 is connected through interval adjustable plate 36 by two cylindrical insulating bars 35, the spacing of interval adjustable plate 36 scalable cylinder insulating bar 35, spacing range, between 0-20cm, conveniently transports and keeping；Cylindrical insulating bar 35 one end be provided with after card connecting hole 2 34, be connected with rear card bottle-holding rack fixation kit 30, and by bottle-holding rack locking pin 31, it fastened；Cylindrical insulating bar 35 is made up of High Performance Insulation material, it is possible to bear bigger mechanical load.
During use, the present invention sequentially includes the following steps:
The first step: front card 1, rear card 2 and insulation pulling plate 3 are assembled by ground handling operator, strict implement following steps are needed: before 1, one end of two insulation pulling plates 3 is each passed through, block the through hole 21 of 1 left and right sides when assembling, length according to on-the-spot double soft bus insulation substrings 8, card connecting hole 33 before selecting suitably, and with bulb pin 20, insulation pulling plate 3 is locked.2, before rear card 2 assembles with insulation pulling plate 3, first adjust left and right rotation screw mandrel 27, make about the half of a length of total length of left and right screw mandrel；Block the insulation pulling plate fixing port 28 on 2 after being respectively put into by the other end of two insulation pulling plates 3 again, and insulation pulling plate locking pin 29 is locked.
Second step: the front card 1 assembled, rear card 2 and insulation, by being arranged on the coaster at transformer station's door frame 5 and double soft buses 11 liang, are drawn 3 plates to pass to the equipotential live line work personnel on pair soft bus 11 and the earth potential working personnel on transformer station's door frame 5 with insulation ropes by ground handling operator.
3rd step: the bayonet socket 14 of front card 1 is stuck on the edge of the LV-0712 type yoke plate 9 between two Z-10 type right angle link plates 10 by equipotential live line work personnel, simultaneously the vertical U-type draw-in groove 22 on rear card 2 is respectively implanted on two U-10 type link strings 7 being connected in tandem of door frame side by current potential operating personnel with horizontally U-shaped draw-in groove 23, cover safeguard assembly 24, and with wing nut 25, U-10 type link string 7 is fastened firm.
4th step: bottle-holding rack 4 is transferred to equipotential live line work personnel and earth potential working personnel by ground handling operator, before first one end of bottle-holding rack 4 being put into respectively by equipotential live line work personnel in 1 two bottle supporting ring assemblies 16 of card, card bottle-holding rack fixation kit 30 after card connecting hole 2 34 after bottle-holding rack 4 being respectively implanted by earth potential working personnel again, and fasten with bottle-holding rack locking pin 31.
5th step: after instrument installs, blocks left and right rotation screw mandrel 27 after earth potential working personnel regulation, until simply connected strain insulator string 8 is 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, take two ways that insulator is replaced: 1, whole string is changed: to be cooperated by isoelectric level personnel and earth potential personnel and passed younger brother to ground by two ends coaster after pulling down bunch of insulator string, new insulator chain is passed to isoelectric level and earth potential working personnel by ground handling operator again, it is achieved the replacing of bunch of insulator.2, part is changed: is taken, by equipotential live line work personnel or earth potential working personnel, the insulator needing to change and is replaced it.
7th step: after replacing insulator end-of-job, earth potential working person block left and right rotation screw mandrel 27 after regulating, recovers the original stress of insulator chain.
8th step: blocking 1 before removing, block 2, insulation pulling plate 3 and bottle-holding rack 4 afterwards, dismounting order is the most contrary with installation process.
9th step: after instrument is removed completely, is transferred to ground by insulation ropes.Earth potential working personnel and equipotential live line work personnel depart from bus equipment and return to ground, and everything goes well with your work completes for replacing insulator.
Claims (8)
1. isoelectric level changes an instrument for the double soft bus strain insulator of simply connected, and simply connected strain insulator string (8) one end is connected with double soft buses (11) through yoke plate (9), right angle link plate (10)；The other end is connected with transformer station's door frame (5) through link string (7), it is characterized in that: front card (1) is connected by two insulation pulling plates (3) with rear card (2), carrying simply connected strain insulator string (8) bottle stand (4) one end of dragging couple with front card (1) through bottle supporting ring assemblies (16), the other end through bottle-holding rack fixation kit (30) with after card (2) be connected；Before described, card (1) is provided with the bayonet socket (14) of fixing yoke plate (9), and front card (1) is additionally provided with placement right angle link plate (10) and the U-type groove (15) of bolt.
Isoelectric level the most according to claim 1 changes the instrument of the double soft bus strain insulator of simply connected, it is characterized in that: after described, card (2) is provided with the vertical U-type draw-in groove (22) of fixing link string (7), horizontally U-shaped draw-in groove (23), link string (7) is fixed by safeguard assembly (24), wing nut (25)；Screw component (26), left and right rotation screw mandrel (27) are connected with insulation pulling plate (3) through insulation pulling plate fixing port (28), and insulation pulling plate (3) is fixed by insulation pulling plate locking pin (29)；Bottle-holding rack (4) is fastened by the bottle-holding rack locking pin (31) of bottle-holding rack fixation kit (30).
Isoelectric level the most according to claim 1 changes the instrument of the double soft bus strain insulator of simply connected, it is characterised in that: described insulation pulling plate (3) one end be provided with after card connecting hole one (32), the other end is provided with multiple front card connecting hole (33).
Isoelectric level the most according to claim 1 changes the instrument of the double soft bus strain insulator of simply connected, it is characterized in that: described bottle-holding rack (4) is connected through interval adjustable plate (36) by two cylindrical insulating bars (35), cylindrical insulating bar (35) one end be provided with after card connecting hole two (34).
Isoelectric level the most according to claim 1 changes the instrument of the double soft bus strain insulator of simply connected, it is characterized in that: before described, card (1) is provided with the through hole (21) connecting insulation pulling plate (3) and the bulb pin (20) locking it, and pellet (17), spring (18), plug screw (19) are to bulb pin (20) screens.
Isoelectric level the most according to claim 1 changes the instrument of the double soft bus strain insulator of simply connected, it is characterised in that: described link string (7) is by the connection in tandem of two links (6).
Isoelectric level the most according to claim 1 changes the instrument of the double soft bus strain insulator of simply connected, it is characterised in that: described double soft buses (11) are connected with simply connected strain insulator string (8) through yoke plate (9), right angle link plate (10) and hydraulic strain clamp (12).
Isoelectric level the most according to claim 1 changes the instrument of the double soft bus strain insulator of simply connected, it is characterised in that: it is provided with soft bus interval wire clamp (13) between described double soft buses (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510108276.6A CN106033872B (en) | 2015-03-12 | 2015-03-12 | Equipotential changes the instrument of the double soft bus strain insulators of simply connected |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510108276.6A CN106033872B (en) | 2015-03-12 | 2015-03-12 | Equipotential changes the instrument of the double soft bus strain insulators of simply connected |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106033872A true CN106033872A (en) | 2016-10-19 |
| CN106033872B CN106033872B (en) | 2018-04-10 |
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| CN201510108276.6A Active CN106033872B (en) | 2015-03-12 | 2015-03-12 | Equipotential changes the instrument of the double soft bus strain insulators of simply connected |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108512120A (en) * | 2018-05-30 | 2018-09-07 | 广东电网有限责任公司 | Insulator replacement tool |
| CN110364960A (en) * | 2019-07-16 | 2019-10-22 | 云南电网有限责任公司曲靖供电局 | Strain insulator list insulator string inspection platform |
| CN111313320A (en) * | 2020-02-24 | 2020-06-19 | 国网福建省电力有限公司龙岩供电公司 | Replacing appliance |
| 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 |
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| 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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2015
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| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108512120A (en) * | 2018-05-30 | 2018-09-07 | 广东电网有限责任公司 | Insulator replacement tool |
| CN110364960A (en) * | 2019-07-16 | 2019-10-22 | 云南电网有限责任公司曲靖供电局 | Strain insulator list insulator string inspection platform |
| CN111313320A (en) * | 2020-02-24 | 2020-06-19 | 国网福建省电力有限公司龙岩供电公司 | Replacing appliance |
| 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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| Publication number | Publication date |
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| CN106033872B (en) | 2018-04-10 |
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