CN201061094Y - Groove instrument for low-tension switch cabinet bypass cross-over connection - Google Patents
Groove instrument for low-tension switch cabinet bypass cross-over connection Download PDFInfo
- Publication number
- CN201061094Y CN201061094Y CNU2007200694770U CN200720069477U CN201061094Y CN 201061094 Y CN201061094 Y CN 201061094Y CN U2007200694770 U CNU2007200694770 U CN U2007200694770U CN 200720069477 U CN200720069477 U CN 200720069477U CN 201061094 Y CN201061094 Y CN 201061094Y
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- groove
- switch cabinet
- tension switch
- shaped tool
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Abstract
The utility model relates to a groove-shaped tool for bypass bridge of low-voltage switchgear, comprising a body and two sliding closures; wherein, the body is a hollow cuboid with a groove; a screw hole for fixing the bolt is arranged in the center of the groove bottom; a locknut and a tight stud are arranged on the bolt in the outside of the groove bottom; the two sliding closures are respectively arranged at the top of the two arms for the body groove; a plurality of long lumbar holes horizontal distributed are milled on each sliding closure, and the long lumbar holes are movably connected with the body via a nut. Since the groove-shaped tool is adopted to switch on the upper pile head and lower pile head of the low-voltage circuit breaker, the utility model has the advantages that the bypass bridge for the drawer low-voltage circuit breaker or draw-out low-voltage circuit breaker in the low-voltage switchgear can be exchanged in the condition of power on.
Description
Technical field
The utility model relates to the bypass cross-over connection instrument of low-tension switch cabinet, relates in particular to the instrument of the circuit breaker in a kind of transposing low-tension switch cabinet that do not have a power failure.
Background technology
Along with a large amount of uses of low-tension switch cabinet, as the also use widely of core component circuit breaker of low-tension switch cabinet.At present use the low-tension switch cabinet that has circuit breaker in a large number at electric company's power distribution station.Because low-tension switch cabinet function height is integrated, compact conformation, the difficult at the scene circuit breaker failure of getting rid of is taked on-the-spot the replacing for this reason, and the technology of returning factory's bypass cross-over connection is more effective.But present transposing technology will make the user have a power failure in short-term, and the power failure operation needs power supply department to finish a large amount of work in advance, comprises the power consumer notified on this circuit, arranges to have a power failure, and a series of work again restores electricity after construction finishes or the like.Certainly will the service quality of power supply quality and power customer will be reduced after the power failure, and power supply department will be subjected to very big influence on the power supply reliability index.Be necessary to develop the instrument of charged transposing low-voltage circuit breaker for this reason.
Summary of the invention
The purpose of this utility model is to provide a kind of effective solution low-tension switch cabinet not have a power failure and changes the instrument of circuit breaker.
Realize that the utility model purpose technical scheme is: a kind of groove shaped tool that is used for low-tension switch cabinet bypass cross-over connection, apply to the circuit breaker in the transposing low-tension switch cabinet under the state that does not have a power failure, it comprises body and slip lid, wherein, above-mentioned body is the cuboid of the hollow of band groove, central authorities at bottom portion of groove have a screw in order to construction bolt, locking nut is installed on the bolt in the outside of bottom portion of groove and pieces together tight double-screw bolt; Above-mentioned slip lid is two, lays respectively at the top of above-mentioned body recess two arms, is milled with the long lumbar hole of some horizontal distribution on above-mentioned each slip lid, movably is connected with above-mentioned body by nut.
Above-mentioned long lumbar hole is two, vertically is arranged on each above-mentioned slip lid.The length of above-mentioned long lumbar hole is 30 ± 0.1 millimeters.Above-mentioned body is that aluminum is made, and above-mentioned slip lid is made by steel.
Owing to adopted above-mentioned technical solution, use the groove shaped tool of the low-tension switch cabinet bypass cross-over connection of special use of the present utility model to connect the pile crown up and down of low-voltage circuit breaker, make it energising, can under the state that does not have a power failure, carry out the bypass cross-over connection transposing drawer type in the low-tension switch cabinet or pull-out type low-voltage circuit breaker.
Description of drawings
Fig. 1 is used for the profile of the groove shaped tool of low-tension switch cabinet bypass cross-over connection for the utility model;
Fig. 2 is used for the vertical view of the groove shaped tool of low-tension switch cabinet bypass cross-over connection for the utility model;
Fig. 3 is used for the stereogram of body of the groove shaped tool of low-tension switch cabinet bypass cross-over connection for the utility model;
Fig. 4 is user mode figure of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and embodiments:
With reference to figure 1-3, a kind of groove shaped tool that is used for low-tension switch cabinet bypass cross-over connection, apply to the circuit breaker in the transposing low-tension switch cabinet under the state that does not have a power failure, it comprises body 2 and slip lid 1, wherein, described body 2 is the cuboid of the hollow of band groove, has a screw in order to construction bolt 5 in the central authorities of bottom portion of groove, locking nut 3 is installed and pieces together tight double-screw bolt 4 on the bolt 5 in the outside of bottom portion of groove; Described slip lid 1 is two, lays respectively at the top of described body recess two arms, is milled with the long lumbar hole of some horizontal distribution on described each slip lid 1, movably is connected with described body by nut.
Described long lumbar hole is two, vertically is arranged on described each slip lid.The length of described long lumbar hole is 30 ± 0.1 millimeters.Described body is that aluminum is made, and described slip lid is made by steel.
A kind of manufacturing process that is used for the groove shaped tool of low-tension switch cabinet bypass cross-over connection comprises the steps:
A, manufacturing body blank: cut-off directly is 75 millimeters a aluminium bar, is sawn into 95 millimeters length, and planing into the appearance face length is 91 millimeters, wide is 60 millimeters, and height is 55 millimeters, and inner surface length is 51 millimeters, wide is 60 millimeters, height be 35 millimeters the band groove hollow cuboid;
B, fine finishining body blank: bore a circular hole in the central authorities of bottom portion of groove, with pincers worker file the peripheral wedge angle of body blank being accomplished diameter is 3 millimeters fillet;
C, installation nut: the steel wire bolt of M16 is installed in the circular hole of bottom portion of groove central authorities, and puts into the steel wire nut of M16;
D, insulation processing: at the outer surface fluidisation coating epoxy powder of above-mentioned body;
E, make the slip lid blank: Q235-A shaped steel plate gas cutting is become 12 millimeters * 70 millimeters * 45 millimeters cuboid sheet;
F, fine finishining slip lid blank: with pincers worker file the peripheral wedge angle of slip lid blank being accomplished diameter is 3 millimeters fillet;
G, mill long lumbar hole: the wide of this long lumbar hole is 11 millimeters at a distance of 30 ± 0.1 millimeters long lumbar holes to mill two on slip lid, and length is 15 millimeters, and two ends are that diameter is 11 millimeters a semicircle orifice.
H, insulation processing: at the outer surface fluidisation coating epoxy powder of above-mentioned slip lid;
I, installation slip lid: the top that by long lumbar hole slip lid is connected body recess two arms with nut.
With reference to figure 4, be user mode figure of the present utility model.Mark 11,12,13,14,15 is respectively the busbar of copper bar among the figure.Two groove shaped tools of the present utility model are embedded on the busbar 13.Slip lid 1 can outwards with inwardly slide apace.The body 2 along continuous straight runs cards of groove shaped tool are to the copper bar busbar, and compress slip lid 1 and outwards slide into the position, when locking nut 3 withdraws from, and standby condition before this instrument is in and installs; Slip lid 1 inwardly slides into the position, and locking nut 3 clamps busbar with slip lid 1 forward, makes busbar be in connection status.
Use this instrument should check before use: whether instrument has damage, more renews if any damage; Tool surfaces is if any dust, moisture content, oil, and applicable industry alcohol is wiped, and installs after the drying again; Whether it is unusual to check whether the slip lid slip has, put in place, and slip should be gently and flexibly.Install the back if any fixing a breakdown.
During installation, to copper bar, and compress, tighten up slip lid then, insert and connect row, tighten and piece together tight bolt, lock locking nut again with the body along continuous straight runs card of groove shaped tool.
Installing and using the back checks: whether copper bar is firm, and loosening phenomenon can not be arranged, and tightens locking nut, in case loosening in the future.
Above-mentioned instrument is in light weight, install convenient fast, the part heat of the contact-making surface that can leave simultaneously.The above-mentioned groove shaped tool that is used for low-tension switch cabinet bypass cross-over connection can be changed low-tension switch cabinet pull-out type low-voltage circuit breaker under the state of power supply continuously.For the defective of contact that causes by loose contact or cutter head heating type, can carry out the scarce processing of pin under the running status continuously by using above-mentioned insulation power tool.Also can utilize this power tool to carry out the fuse transposing, guarantee that the user powers continuously.Thereby under the state that low-voltage equipment does not have a power failure, will load to interim transfer in other low pressure storehouses or shunting.
This instrument satisfies the low-voltage equipment insulating reliability, can withstand voltage 5000V, and the ampacity maximum can be 630A, meets moving stable and heat-staple relevant requirements simultaneously.Low-tension switch cabinet that this instrument is particularly suitable for using always and low-voltage component structure, and easy to operate, in light weight, volume is little, is easy to carry, and can cause short circuit in no instance, and is easy to use, makes operating personnel's human body as far as possible away from live part.
Embodiment
One, the job step of charged installation groove shaped tool:
1 dismantles groove shaped tool becomes part.
Hold-down bolt moves back and hits on the 2 groove shaped tool bodies, and the termination is flushed with bottom land; Slip lid slides to two outsides, makes notch diffuse into maximum.(note the slip lid caging bolt otherwise tension, hinder slip lid to move; Pine influences the slip lid load only.)
3#1 electrician's on contiguous electricity row (or on framework) adds insulation and covers; #2 electrician opens the cabinet back door, cooperates fixed insulation to cover.
4#1 electrician hands the groove shaped tool body, makes electricity row include notch in; #2 electrician makes slip lid sliding in notch in cooperation behind the cabinet; #1 electrician toward post-tensioning, makes the slip lid load with the groove shaped tool body simultaneously, between bottom land and copper bar, inserts terminal block subsequently.
5#1 electrician tightens hold-down bolt as possible, and whole groove shaped tool is not dropped.Tight a bolt with screw cap sleeve and ratchet spanner more subsequently, it is closely reliable that terminal block is contacted with copper bar.
Two, bypass Job Operations step:
1, node is typically chosen on the copper bar under female cutter on the bypass loop, as handles female cutter defective, then is chosen on the copper bar between main bus bar and female cutter;
2, node is typically chosen on the copper bar between circuit breaker (or fuse) and the current transformer under the bypass loop, to guarantee the normal monitoring of feeder line load;
3, upper and lower node is respectively installed 3 cover grooved instruments.Last node installs node down is installed again.Want on B phase copper bar, to install earlier, adorn A subsequently successively and reach the C phase mutually.B phase groove shaped tool position will reach the C phase mutually a little more than A, makes the three-phase groove shaped tool be arranged in isosceles triangle.When the B groove shaped tool is installed, on the copper bar of the left and right sides, establishes insulation and cover.When A phase or C phase groove shaped tool are installed, on contiguous copper bar and tank bracket, establish insulation and covering.
4, after each 3 cover grooved instrument of upper and lower node are finished installation, carry out being connected of lead-in wire and last node on the shunting device.To go up the crossing # 1 electrician of lead-in wire B by #2 electrician and be connected on the B phase groove shaped tool, and meet A subsequently and reach the C phase mutually.At this moment, arrange the careful operation in bigger space provide, and on contiguous copper bar or tank bracket, establishing insulation and cover according to the groove shaped tool isosceles triangle.
5, conclusive evidence shunting device box of the circuit breaker inner breaker is at open position.Intersect #1 electrician and be connected on the B phase groove shaped tool by the #2 electrician B that will go between down, meet A subsequently again and reach the C phase mutually.At this moment, arrange the bigger space provide according to the groove shaped tool isosceles triangle, careful operation, and on contiguous copper bar or tank bracket, establishing insulation and cover.
6, order the shunting device circuit breaker that closes by the work director, finish the bypass operation, and press the effect of ammeter indication check bypass loop.
Three, cross-over connection Job Operations step
If 1 A-wire load will be transferred to the second line, then the last node in cross-over connection loop is chosen on the second line, and node is located on the A-wire down.On, following node all is located between circuit breaker (or fuse) and the current transformer, to guarantee feeder line load normal monitoring.
2, on, following node is respectively installed 3 cover grooved instruments, and last node installs binding place down is installed again.Want on B phase copper bar, to install earlier, A is installed subsequently successively reaches the C phase mutually.B phase groove shaped tool position outline high with A C phase mutually, it is Chinese character pin-shaped that the three-phase groove shaped tool is arranged in, when B phase groove shaped tool was installed, establishing on the copper bar of the left and right sides insulate covered.When A phase or C phase groove shaped tool are installed, on contiguous copper bar or tank bracket, establish insulation and covering.
3, on, after each 3 cover grooved instrument of following node are finished, carry out crossover assembly and (annotate: i.e. the shunting device that uses during bypass operation) go up being connected of lead-in wire and last node.To go up the crossing # 1 electrician of lead-in wire B by #2 electrician and be connected on the B phase groove shaped tool, and meet A subsequently and reach the C phase mutually.At this moment, arrange the careful operation in bigger space provide, and establishing insulation on copper bar or the tank bracket and cover closing on according to the groove shaped tool isosceles triangle.
4, shift the job site before the feeder switch cabinet that contact is set down.Checking crossover assembly box of the circuit breaker inner breaker is at open position.Intersect #1 electrician and be connected on the B phase groove shaped tool by the #2 electrician B that will go between down, meet A subsequently and reach the C phase mutually.At this moment, each to arrange the careful operation in bigger space that provide, and establishing insulation on copper bar or the tank bracket and cover closing on according to the groove shaped tool isosceles triangle.
5, the crossover assembly short-circuiting device case inner breaker that closes, circuit breaker (or the female cutter) transfer load of operation A-wire and second line should be capable by the corresponding operating ticket stubs.
Above embodiment is only for the usefulness that the utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (4)
1. a groove shaped tool that is used for low-tension switch cabinet bypass cross-over connection applies to the circuit breaker in the transposing low-tension switch cabinet under the state that does not have a power failure, and it is characterized in that it comprises body and slip lid, wherein,
Described body is the cuboid of hollow of band groove, has a screw in order to construction bolt in the central authorities of bottom portion of groove, locking nut is installed and pieces together tight double-screw bolt on the bolt in the outside of bottom portion of groove;
Described slip lid is two, lays respectively at the top of described body recess two arms, is milled with the long lumbar hole of some horizontal distribution on described each slip lid, movably is connected with described body by nut.
2. the groove shaped tool that is used for low-tension switch cabinet bypass cross-over connection according to claim 1 is characterized in that, described long lumbar hole is two, vertically is arranged on described each slip lid.
3. the groove shaped tool that is used for low-tension switch cabinet bypass cross-over connection according to claim 1 is characterized in that, the length of described long lumbar hole is 30 ± 0.1 millimeters.
4. the groove shaped tool that is used for low-tension switch cabinet bypass cross-over connection according to claim 1 is characterized in that, described body is that aluminum is made, and described slip lid is made by steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200694770U CN201061094Y (en) | 2007-04-28 | 2007-04-28 | Groove instrument for low-tension switch cabinet bypass cross-over connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200694770U CN201061094Y (en) | 2007-04-28 | 2007-04-28 | Groove instrument for low-tension switch cabinet bypass cross-over connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201061094Y true CN201061094Y (en) | 2008-05-14 |
Family
ID=39409584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200694770U Expired - Lifetime CN201061094Y (en) | 2007-04-28 | 2007-04-28 | Groove instrument for low-tension switch cabinet bypass cross-over connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201061094Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295858B (en) * | 2007-04-28 | 2012-05-30 | 上海市电力公司 | Groove shaped tool for low-tension switch cabinet bypass cross-over connection, and manufacturing technique thereof |
| CN103779747A (en) * | 2014-02-14 | 2014-05-07 | 华为技术有限公司 | Power distribution connecting device |
-
2007
- 2007-04-28 CN CNU2007200694770U patent/CN201061094Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295858B (en) * | 2007-04-28 | 2012-05-30 | 上海市电力公司 | Groove shaped tool for low-tension switch cabinet bypass cross-over connection, and manufacturing technique thereof |
| CN103779747A (en) * | 2014-02-14 | 2014-05-07 | 华为技术有限公司 | Power distribution connecting device |
| CN103779747B (en) * | 2014-02-14 | 2016-03-02 | 华为技术有限公司 | Distribution jockey |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080514 |