CN1035796C - A kind of apparatus and method of allowing the charged power transmission line of cut-out - Google Patents
A kind of apparatus and method of allowing the charged power transmission line of cut-out Download PDFInfo
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- CN1035796C CN1035796C CN87101765A CN87101765A CN1035796C CN 1035796 C CN1035796 C CN 1035796C CN 87101765 A CN87101765 A CN 87101765A CN 87101765 A CN87101765 A CN 87101765A CN 1035796 C CN1035796 C CN 1035796C
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- transmission line
- power transmission
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Abstract
The invention provides a kind of newly,, allow and cut off power transmission line charged or heat at the scene, be used for power-on serving or other purpose through improved device.This device is connected to the leap power transmission line and wants on each end of cut-off parts.Then that the power transmission line link is close to each other mobile, make the cut-off parts of wanting of power transmission line loosen.With jumper cable this device is connected with charged power transmission line subsequently, forms a parallel circuits.Then power transmission line is cut off, will cut off the end replication and pinion.The electric current of this device of flowing through is disconnected.A circuit breaker on this device then extinguishes any electric arc that may form.
Description
The present invention relates to a kind of method of allowing the device that cuts off charged power transmission line and using the charged power transmission line of this device cut-out.
In power industry, for the maintenance or other purpose often need cut off or interrupt charged high-power power transmission line.Usually, these power transmission lines are loaded with high-tension electricity power, and 30,000 volts or higher voltage are often arranged.And often need line disconnection on away from a certain position of arbitrary electric pole or transmission line pylon.
United States Patent (USP) relates to a kind of killer switch that disconnects high power circuit for No. 3205330.Yet, just known to the people, use under the occasion that the killer switch of this pattern obviously is limited in hanging or supporting under electric pole or the pylon.
In an other occasion, the previous cropper that is contained on long insulating bar one end that uses cuts off charged power transmission line simply.Because the cut-out end through the power transmission line of being everlasting can produce dangerous electric arc over the ground, this is undesirable.
The object of the present invention is to provide a kind of apparatus and method of cutting off charged power transmission line of allowing, this device can cut off charged power transmission line on away from the position of electric pole or transmission line pylon, and can extinguish the electric arc of any danger that the cut-out end of power transmission line produces over the ground.
Briefly, the invention provides a kind of new improved equipment and method of allowing the power transmission line that cut-out is charged.Connect each geometrical clamp on power transmission line first and second positions of wanting cut-off parts near power transmission line, the opposite end of each geometrical clamp and an elongated support bar joins, and support bar is preferably made by high-grade insulating materials.Then, make close to each other the moving of geometrical clamp want cut-off parts by travel mechanism so that loosen power transmission line with the support bar connection.Each stirrup shape electric-conductor and a bus all are fitted together with support bar, when with cable it being connected with power transmission line, forming and want cut-off parts circuit in parallel with power transmission line.In case power transmission line is cut off, be preferably at least one and cut off after end pinioned back, cut off or the interruption parallel circuits by the position of mobile bus relatively with each stirrup.When bus moves, insert the arc extinguishing circuit breaker so that extinguish any electric arc that when parallel circuits is disconnected, forms.
Fig. 1 is the front view by apparatus of the present invention;
Fig. 2 is the view that Fig. 1 obtains along the 2-2 line;
Fig. 3,4,5 and 6 is each partial elevation view of device diverse location in the transmission line maintenance operating process of Fig. 1;
Fig. 7 is by the power transmission line front view that connect of power transmission line of the present invention after maintenance.
In each figure, alphabetical A represents a kind of according to the power transmission line L of the present invention device that works online.This device is allowed at power transmission line L in the charged or carrying electrical power, is cut off power transmission line L on away from each position of electric pole, pylon and other supporting structure.Device A typically is used for the power transmission line L of the high electrical power of actual bearer, for example is used for surpassing the transmission line of 30,000 volts of voltages.
To install A with comb-along 14 and 16 and be installed to power transmission line L near wanting on the primary importance 10 and the second place 12 of cut-off parts S.Comb-along 14 has identical structure with 16 for conventional type ， And.Comb-along 14 and the position opposite of comb-along 16 on power transmission line L.Each comb-along 14 and 16 all have a U type being assemblied on the power transmission line L fixedly mounting 18 play supporting role.Form in the upper end of fixed arm 22 and respectively to operate hook on the insulating bar end that is installed in elongation that an eyelet 20 is used for holding conventional type.Clamp arm 24 is conventional pattern, forms a tong chops at an upper portion thereof and is used for clamping power transmission line L, and arm 24 is pivotally mounted on the fulcrum 26 with arm 22 usefulness.Arm 28 extends downwards with lever arm 32 from mounting 18 pivot connector 30.Lever arm 32 also with clamp arm 24 on fulcrum 34 with pivotally connected.On the relative end of lever arm 32 and fulcrum 34, form an eyelet 36, make the operator hook can Fang Ru And shift lever arm 32 so that tong chops and the mounting 18 following power transmission line L that drive on the clamp arm 24 engage securely.
Each rotary connector hook 38 is packed in the eyelet 36 of comb-along 14 and 16, is connected to power transmission line L and goes up place near position 12 and 14 so that will install A.In one embodiment of the invention, the installation york piece 42 of first connector hook 38 with the circuit tensioning mechanism M of device A is loaded in the rotary sleeve 40.Another connector rotary hook 38 and the cover of the end on elongated insulating support rod 46 1 ends 44 are installed in the rotary sleeve 43.Undoubtedly, if necessary, on each end of support bar, can install the M of travel mechanism according to the present invention.Bar 46 is that for example glass fibre is made by the suitable insulation material, owing to will narrate below, bar 46 is hollow at one section of close travel mechanism or the M of mechanism at least.If necessary, bar 46 also can be a tubulose.
Hold-down nut 48 on an end of the screw rod 49 of the M of mechanism is installed to the M of mechanism that a ratchet mechanism 50 is fitted together with york piece 42 on the york piece 42, and portion settles screw rod 49 within it.Ratchet mechanism 50 usefulness arm of ratchet 51 drive, and arm of ratchet 51 usefulness are inserted an operator hook operation of rotating in the eyelet 52 of arm of ratchet 51 lower ends.When arm of ratchet 51 rotations, ratchet mechanism 50 causes inside or outwards motion in the end of thread cover 53 of screw rod 49 on bar 46 1 ends, and this depends on the installation site of ratchet mechanism 50.Bar 46 is hollow in the inside of above-mentioned end, forms the preceding inlet side that tubulose can be used to accommodate the screw rod 49 that is driven by ratchet mechanism 50.Stop-nut 54 is contained on the screw rod 49, is used to limit the amount of movement of screw rod 49 in the end cover 53 of bar 46.
Connector fixed rack 55 (Fig. 2) is installed on the york piece 42 adjacent with the M of mechanism, and the first end 56a of connector rod 56 is installed at support 55 internal fixation.Connector rod 56 and screw rod 49 consistent moving, and the second end 56b of connector rod 56 slides in fixed support 57, and this fixed support 57 is fixedly mounted on the end cover 53 of bar 46
The tubulose fixedly axle collar 62 is to be extended upward and formed by channel 64, so that settle bar 46 therein.Channel 64 is made by suitable electric conducting material, for example makes the stirrup shape electric-conductor 66 that ， And forms outside stretching, extension thereon by aluminium or materials similar.Stirrup shape electric-conductor 66 extends laterally from conductive plate or carriage 68.Formation is stretched out downwards below plate 68 conductive side clamping plate that separate each other or lug 70.Clamping plate 70 spaced apart from each other have a pivot connector 72, and a movable bus 74 of being made by copper or other suitable electric conducting materials is installed between clamping plate.For support this 74, late spring supporting member 76 is housed below plate 68, this will be described below.
Every end at channel 80 forms the fixedly axle collar 78 of cylindrical shape, and settles bar 46 therein.Conductive bracket 84 extends laterally and forms stirrup shape electric-conductor 82 below channel 80.Extend to form arm 86 downwards from carriage 84, have a fixed muffle 88 to be used for laying circuit breaker I (Fig. 3) on this arm.The every side that extends downwardly into bar 74 from carriage 84 forms elastic conduction switch intermediate plate 90 with bar 74 fix in position securely.A releasable bolt lock mechanism 92 is fitted together with carriage 84, for engaging with lug 98 that installation is stretched out in bus 74 1 sides top.Lug 98 engages with releasable bolt lock mechanism 92 and makes bus 74 fix in position, connects stirrup shape electric-conductor 66 and 82.Lug 98 constitutes the top of arm 100, and a handle (drawing) hand 102 is formed at the bottom of this arm.
On an end 74a of bar 74, form a common U-shaped contact yoke 104.This yoke 104 has one to pass the bar 104a (Fig. 3) that its top forms, and the hook 106 that it is suitable for forming with the upper end of circuit breaker I (Fig. 3) tenaculum bar 108 engages.Extend upward formation insulation board 111 from yoke 104, the central channel that has a suitable shape on it is used for engaging with channel 80 (Fig. 3).
Circuit breaker I is habitual pattern, as disclosed in No. 3205330, the United States Patent (USP).The fixed muffle 88 of circuit breaker I below connector mechanism 110 and carriage 84 is connected.The hook bar 108 of circuit breaker I is installed on the hinge mechanism 112 of lock tube 114 rotatably, and this lock tube is installed around breaker body 116.The such structure that comprises arc quenching material in breaker body 116 is open in No. 3205330, United States Patent (USP), only quotes file as a comparison at this.Forming eyelet 118 from the outwardly directed part of lock tube, making can operating breaker I by operating means.The upper end of connector rod 120 is with being pivotally mounted on the hook bar 108, and its lower end is installed on the pivot joint 122 below the breaker body 116.
Jumper cable 124 is connected across between the wire clamp 126 and 128 of the every end of device A.Wire clamp 126 and 128 is conventionally forms, tightens with the action bars reinforcing on the hole 130 of its formation and clamps power transmission line L.Tighten on the stirrup 66 and 82 of auto levelizer A with same method at each wire clamp 128 on second end of jumper cable 124, make it possible to form one from wire clamp 126 through each jumper cable 124, each wire clamp 128, stirrup 66 and 82, carriage 68 and 84, again by bus 74 through device A De And connection circuit, as in the residing position of device A shown in Fig. 1.
When operation of the present invention, comb-along 14 and 16 (Fig. 1 and 2) is hung in power transmission line L and goes up position 10 and 12 places that want cut-off parts S near power transmission line L.Installing A then is hung up in the connector eyelet 36 of comb-along 14 and 16 by means of each connector hook 38.After this handle ratchet mechanism M, the motion drive screw 49 by arm of ratchet 51 enters in the end of thread cover 53 of bar 46, causes comb-along 14 and 16 close to each other, and power transmission line wants the tension force Jian Ruo And of cut-off parts S to loosen.Between power transmission line L and stirrup 66 and 82, connect jumper cable subsequently, form a circuit arrangement through device A and power transmission line L And connection.
After this, circuit breaker I is installed in the sleeve 88 of device A.At this moment when power transmission line L was also intact, as safety inspection, cut-off breaker was good to guarantee device A operation.If it is good that device A checks, use conventional transversal instrument to cut off the S portion of power transmission line L subsequently.End 131 with the line L that disconnects ties up back so that keep in repair in the outside near cut power transmission line L opposite end 132 again.
The handle 102 of down-pull device A (Fig. 3 and 4) drives bus 74 itself and switch intermediate plate 90 is disengaged subsequently.When bar 74 moved downward, because contacting between the bar 104a of yoke 104 and the hook 106 of linking up with bar 108, conductive path still existed.When bar 74 moves downward, be electrically connected and keep always till that (Fig. 4) that circuit breaker I is arrived when portion disconnects being electrically connected between the end 131 and 132 of power transmission line L within it, use things in the breaker body 116 to extinguish and be electrically connected any electric arc that may form when disconnecting.
After maintenance operation is finished on the power transmission line L that cuts off, bus and late spring are supported 76 be disengaged, with handle 102 it is rotated back into switch intermediate plate 90 and contact.Above-mentioned action can be finished usually very fastly, also is very little even form the danger existence of electric arc this moment.For additional arc quenching protection, can before this circuit breaker I be reloaded in the sleeve 88, be used to extinguish any electric arc that might form.At this moment, because bus 74 engages between switch intermediate plate 90, the electric current by power transmission line L restarts to flow.The end 131 of cut power transmission line L is decontroled from its position of pinioning back, and the close position Shang ， And that takes the end 132 of another cut-out to is enclosed within on end 131 and 132 with the coupling box 140 (Fig. 7) of a routine.Good joint sleeve 140 crimping, the end 131 and 132 of device A is formed each other be electrically connected.Removing jumper cable 124 then is electrically connected device A and power transmission line L disconnection.Take off rotary hook 38 in the eyelet from comb-along 14 and 16 36 again, take away comb-along 14 and 16 so just make device A and power transmission line L throw off mechanical connection.
In specification, the embodiment of the invention described above has been done to disclose and describe, but only otherwise leave spirit of the present invention, just can accomplish size, shape and the material of described structure and the various variations of details.
Claims (15)
1. allow the device that cuts off charged power transmission line (L) for one kind, it comprises fixture (14,16), is connected near power transmission line (L) and wants on power transmission line first and second positions of cut-off parts (S); Mobile device (A) moves towards one another above-mentioned fixture (14,16), in case on connecting, make power transmission line (L) want cut-off parts (S) to loosen; And jockey (130), insert and want cut-off parts (S) circuit (126,124 in parallel with power transmission line, 128,66,68,70,74,90,84,82,128,124,126), it is characterized in that: the bridge circuit of switch (90) and this switch of cross-over connection (74,104a, I, 88,86,84) be set in the above-mentioned parallel circuits (126-126), thereby load circuit breaker (I) removably inserts in the above-mentioned bridge circuit (74-84), opening above-mentioned switch (90), and disconnect bridge circuit (74-84) then.
2. by the described device of claim 1, it is characterized in that: load circuit breaker (I) comprises the lonely device that goes out, and is used to extinguish any electric arc that forms on the release mechanism that disconnects above-mentioned parallel circuits.
3. by the described device of claim 1, it is characterized in that said fixing device (14,16) comprising: comb-along mechanism (14,16).
4. by the described device of claim 1, it is characterized in that above-mentioned device (A) comprising:
(a) an elongated insulating support rod (46);
(b) electrical connector (38) is positioned on the opposite end of above-mentioned support bar (46), is connected with above-mentioned fixture (14,16);
(c) adjusting device (50) is regulated the position of above-mentioned electrical connector (38) with respect to above-mentioned support bar (46).
5. by the described device of claim 4, wherein above-mentioned adjusting device (50) comprising:
Ratchet mechanism (50), it is installed together with an electrical connector (38) at least.
6. by the described device of claim 5, wherein above-mentioned adjusting device (50) comprising:
A screw element (49), it is driven by above-mentioned ratchet mechanism (50), moves in the cover (53) that forms on an end of above-mentioned support bar (46) and shifts out.
7. by the described device of claim 1, wherein above-mentioned jockey comprises:
(a), be installed in above-mentioned mobile device (A) and go up spaced positions from each other more than one stirrup shape electric-conductor device (66,82);
(b) jumper cable device (24) is used for above-mentioned power transmission line (L) and above-mentioned stirrup shape electric-conductor device (66,82) more than are electrically connected; With
(c) bus (74) that forms above-mentioned switch element extends between more than one stirrup shape electric-conductor device (66,82) above-mentioned.
8. by the described device of claim 7, wherein above-mentioned bus (74) is movably with respect to the above-mentioned stirrup shape electric-conductor device (66,82) more than.
9. by the described device of claim 7, wherein above-mentioned bus (74) can discharge joint above-mentioned between more than one stirrup shape electric-conductor device (82).
10. by the described device of claim 7, also comprise
In case power transmission line (L) is cut off, with above-mentioned bus (74) with above-mentioned stirrup shape electric-conductor device (82) in the device (76) of fix in position at least one position spaced.
11. a method of cutting off charged power transmission line, it comprises the following steps:
(a) want on the position that certain intervals is arranged each other of cut-off parts (S) in power transmission line (L) side, power transmission line (L) is fixed on the fixture (14,16);
(b) fixture (14,16) is close mutually mobile, the above-mentioned part (S) of power transmission line (L) is loosened;
(c) composition is wanted cut-off parts (S) circuit in parallel (126,124,128,66,68,70,74,90,82,128,124,126) with power transmission line (L);
(d) cut off the part (S) that power transmission line (L) will cut off;
(e) after power transmission line is cut off, disconnect above-mentioned parallel circuits.
12. the step that also comprises in accordance with the method for claim 11, is to extinguish formed any electric arc when the step of above-mentioned disconnection parallel circuits.
13. the step that also comprises in accordance with the method for claim 11, is for pinioning at least one cut-out end of power transmission line back.
14. the step that also comprises in accordance with the method for claim 11, is for forming a conducting channel between each cut-out end of power transmission line (L).
15. in accordance with the method for claim 14, the step that also comprises for cut off in each of power transmission line (L) form a conducting channel between the end after, each of power transmission line cut off end links together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87101765A CN1035796C (en) | 1987-02-05 | 1987-02-05 | A kind of apparatus and method of allowing the charged power transmission line of cut-out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87101765A CN1035796C (en) | 1987-02-05 | 1987-02-05 | A kind of apparatus and method of allowing the charged power transmission line of cut-out |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87101765A CN87101765A (en) | 1988-08-17 |
| CN1035796C true CN1035796C (en) | 1997-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87101765A Expired - Fee Related CN1035796C (en) | 1987-02-05 | 1987-02-05 | A kind of apparatus and method of allowing the charged power transmission line of cut-out |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1035796C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110832721B (en) * | 2017-07-06 | 2021-01-22 | 株式会社永木精机 | Wire handling tool, component for wire handling tool, wire cutting method, and wire connecting method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB375946A (en) * | 1931-05-18 | 1932-07-07 | Pfisterer Karl | Improvements in and relating to safety devices for overhead electric lines |
| FR790402A (en) * | 1934-08-21 | 1935-11-21 | Cie D Electricite De L Ouest P | Improvements relating to work carried out on tensioned overhead cables |
-
1987
- 1987-02-05 CN CN87101765A patent/CN1035796C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB375946A (en) * | 1931-05-18 | 1932-07-07 | Pfisterer Karl | Improvements in and relating to safety devices for overhead electric lines |
| FR790402A (en) * | 1934-08-21 | 1935-11-21 | Cie D Electricite De L Ouest P | Improvements relating to work carried out on tensioned overhead cables |
Also Published As
| Publication number | Publication date |
|---|---|
| CN87101765A (en) | 1988-08-17 |
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