CN205811384U - Ring main unit does not have a power failure and accesses the auxiliary device of cable - Google Patents
Ring main unit does not have a power failure and accesses the auxiliary device of cable Download PDFInfo
- Publication number
- CN205811384U CN205811384U CN201620706641.3U CN201620706641U CN205811384U CN 205811384 U CN205811384 U CN 205811384U CN 201620706641 U CN201620706641 U CN 201620706641U CN 205811384 U CN205811384 U CN 205811384U
- Authority
- CN
- China
- Prior art keywords
- main unit
- ring main
- cable
- power failure
- front connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 238000009413 insulation Methods 0.000 claims abstract description 23
- 230000001681 protective effect Effects 0.000 claims abstract description 12
- 239000012774 insulation material Substances 0.000 claims abstract description 6
- 230000006835 compression Effects 0.000 claims abstract description 3
- 238000007906 compression Methods 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 11
- 239000004020 conductor Substances 0.000 description 3
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Abstract
The utility model discloses a kind of ring main unit do not have a power failure access cable auxiliary device, junction block (1) is installed in ring network cabinet body (2), junction block (1) is upper installs the T-shaped front connector (5) that oversheath is all insulation material, installing Binding post/stud (6) in T-shaped front connector (5), the binding post (7) running cable is connected with junction block (1) by Binding post/stud (6) and passes through wiring nut (8) compression；It is characterized in that: the auxiliary device of the access that do not has a power failure to ring main unit configuration, described auxiliary device includes protective baffle plate and gap bridge mechanism two parts of auxiliary connection of supplementary insulation；This utility model simple in construction, easy to operate, solve do not have the ring main unit of standby spacing do not have a power failure access bypass cable problem.
Description
Technical field
This utility model relates to the frock bypassing uninterrupted operation, and a kind of ring main unit does not have a power failure and accesses the auxiliary of cable
Help device.
Background technology
Along with the development of urban distribution network, uninterrupted operation has become as a kind of trend, the bypass of current power system
Uninterrupted operation is more and more extended in cable run by overhead transmission line and relevant device, for cable run and ring
The work normalizations such as the service without power-off of net cabinet and replacing.
Service without power-off currently for ring main unit is generally divided into two kinds of operational methods, and one is negative by adjusting circuit
Lotus, is soared the ring main unit load of Awaiting Overhaul or replacing by grid switching operation so that it is the load carried goes to his ring main unit, this
Plant operational method and be suitable for loop grid or double voltage control, higher to distribution rack construction requirements, it is impossible to meet distribution branch
The job requirements of circuit；One is by bypass operation, replace by bypass equipment temporarily the ring main unit of Awaiting Overhaul or replacing to
Customer power supply, this kind of operational method is applicable to various circuit, and job safety is efficient, is widelyd popularize.
Utilizing bypass equipment to substitute the operation of distribution ring main unit, if wanting, realizing user does not has a power failure, it is desirable to distribution temporarily
Ring main unit must possess standby spacing, for the access of bypass cable, the access of bypass cable by standby spacing in advance
The access socket that do not has a power failure (overwhelming majority distribution ring main unit does not all configure) installed is directly connected to bypass cable, this method requirement
The access socket that do not has a power failure must be mounted with in advance in distribution ring main unit, relatively costly；The access of bypass cable can also be by first
By standby spacing power-off, under power down mode access bypass cable, this method to standby spacing without particular/special requirement, low cost
Honest and clean, generally individually adopt this method.But for there is no the ring main unit of standby spacing, it is necessary to first have a power failure after accessing bypass cable, side
The follow-up service work of ring main unit can be carried out, whole operation process requires twice to have a power failure in short-term for bypass cable access with
Exit, still can affect power supply reliability.
For not having the ring main unit of standby spacing, if thinking to access in the energized state bypass cable, difficulty essentially consists in:
1) the T-shaped front connector of ring main unit internal wiring is all at charged belt load operation, is in insulation and obturation state, takes T apart
The rear defence protecting cover of type front connector, then the distance between the external shielding layer of inner conductor and T-shaped front connector is less than 30mm, and safe distance is not
Enough, cause creepage puncturing, cause line-to-ground fault.
2) if by ring main unit connect be designed as all insulation form with T-shaped front connector outer layer, bypass cable in access procedure,
The conductor connected is with the terminals connection procedure of T-shaped front connector, and conductor is less than 80mm with the distance of ring network cabinet body, leads
Body is inadequate with the operating distance of ring network cabinet body, also results in earth fault.
3) ring main unit cabinet insied width is generally 305mm, narrow space, and cabinet and binding post exist insulating protection isolation and ask
Topic.
Summary of the invention
The purpose of this utility model is: provides a kind of ring main unit not have a power failure and accesses the auxiliary device of cable, simple in construction, behaviour
Facilitate, solve do not have the ring main unit of standby spacing do not have a power failure access bypass cable problem.
Technical solution of the present utility model is: install junction block in ring network cabinet body, and junction block is installed outer protecting
Set is for installing Binding post/stud in the T-shaped front connector of all insulation material, T-shaped front connector, the binding post running cable passes through
Binding post/stud is connected with junction block and passes through a wiring nut compression；It is characterized in that: configure, to ring main unit, the access that do not has a power failure
Auxiliary device, described auxiliary device includes protective baffle plate and gap bridge mechanism two parts of auxiliary connection of supplementary insulation；Described
The protective baffle plate of supplementary insulation include top board and side plate, side plate has pilot hole, the both sides of top board by lead through leading
One block of side plate is respectively installed to hole, side plate according to the interval width size of ring main unit by the guiding of lead to two Slideslips；Institute
The gap bridge mechanism that the auxiliary stated connects includes extension bar, No. two wiring nuts, No. three wiring nuts, insulation plug, No. two wiring
Terminal and T-shaped rear joint, extension bar one end is with internal thread hole, and the extension bar other end is external screw thread stud, and extension bar one end leads to
Crossing internal thread hole to be connected on the Binding post/stud in T-shaped front connector, the other end of extension bar highlights outside the rear end of T-shaped front connector
Portion, T-shaped rear joint accesses the rear end of T-shaped front connector, and No. two binding posts of bypass cable are connected to the other end of extension bar
On external screw thread stud, and compressed by No. two wiring nuts, No. three wiring nuts, after insulation plug is arranged on T-shaped rear joint
End.
Wherein, top board is installed fixing line.
Wherein, it is set with insulated sleeve outside extension bar.
Wherein, T-shaped front connector, T-shaped rear joint are respectively mounted shading ring.
The utility model has the advantages that:
1, insulated sleeve uses insulation transparent material, and internal diameter is identical with the external diameter of extension bar, and length is more than extension bar, lengthens
Bar is put into insulated sleeve and is slided, in the Binding post/stud connection procedure of extension bar and T-shaped front connector all the time by insulated sleeve with
Outside isolation；
2, side plate is put into two Slideslips, protective baffle plate by the guiding of lead according to the interval width size of ring main unit
Top, is dielectrically separated from looped network cabinet inner top and both sides in ring main unit, it is ensured that it is exhausted that T-shaped rear joint inserts during T-shaped front connector
Edge distance；
3, shading ring uses copper braid over braid to make, around the outer surface of T-shaped forward and backward joint, shading ring and ring network cabinet body
Ground connection after connection, eliminates T-shaped front connector and the rear joint external protection coating electric charge of accumulation when the later stage, energising ran；
4, the external sheath layer of T-shaped front connector and T-shaped rear joint is all insulation structure, it is ensured that the insulation with external agency away from
From.
5, this utility model utilizes the T-shaped front connector of all insulation formula, T-shaped rear joint, insulating protection baffle plate and insulated sleeve
Protection, is eliminated the insulating barrier stored charge of T-shaped joint front and back, solves and do not stop without the ring main unit of standby spacing by shading ring
It is electrically accessed bypass cable problem, is the new method of ring main unit service without power-off and replacing.
Accompanying drawing explanation
Fig. 1 is bypass cable access state figure of the present utility model.
Fig. 2 is protective baffle plate schematic diagram.
Fig. 3 is insulated sleeve scheme of installation.
In figure: 1 junction block；2 ring network cabinet bodies；3 protective baffle plates；4 shading rings；5 T-shaped front connectors；6 Binding post/studs；7 one
Number binding post；No. 8 wiring nuts；9 extension bars；10 No. two wiring nuts；11 No. three wiring nuts；12 insulation plugs；13
No. two binding posts；14 T-shaped rear joints；15 fix line；301 top boards；302 side plates；303 leads；901 insulated sleeve.
Detailed description of the invention
As Figure 1-3, installing junction block 1 in ring network cabinet body 2, it is all insulation material that junction block 1 is installed oversheath
The T-shaped front connector 5 of matter, installs Binding post/stud 6 in T-shaped front connector 5, runs a binding post 7 of cable by Binding post/stud 6
It is connected with junction block 1 and passes through a wiring nut 8 and compress；It is characterized in that: do not have a power failure the auxiliary dress accessed to ring main unit configuration
Putting, described auxiliary device includes protective baffle plate and gap bridge mechanism two parts of auxiliary connection of supplementary insulation；Described auxiliary
The protective baffle plate 3 of insulation includes top board 301 and side plate 302, and side plate 302 has pilot hole, and the both sides of top board 301 are by guiding
Post 303 respectively installs one block of side plate 302 through pilot hole, side plate 302 according to the interval width size of ring main unit by lead 303
Guide to two Slideslips；The gap bridge mechanism that described auxiliary connects includes extension bar 10, No. three wiring spiral shells of 9, No. two wiring nuts
Mother 11, insulation 12, No. two binding posts 13 of plug and T-shaped rear joint 14, extension bar 9 one end is with internal thread hole, and extension bar 9 is another
One end is external screw thread stud, and extension bar 9 one end is connected on the Binding post/stud 6 in T-shaped front connector 5 by internal thread hole, lengthens
The other end of bar 9 highlights outside the rear end of T-shaped front connector 5, and T-shaped rear joint 14 accesses the rear end of T-shaped front connector 5, bypass cable
No. two binding posts 13 other end that is connected to extension bar 9 external screw thread stud on, and by No. two wiring nuts 10, three
Wiring nut 11 compresses, and insulation plug 12 is arranged on the rear end of T-shaped rear joint 14.
Wherein, top board 301 is installed fixing line 15.
Wherein, extension bar 9 outer suit insulated sleeve 901.
Wherein, T-shaped front connector 5, T-shaped rear joint 14 are respectively mounted shading ring 4.
It is mounted with, on junction block 1 in running ring main unit, the T-shaped front connector 5 that oversheath is all insulation material, fortune
Number binding post 7 of row cable is connected with junction block 1 by Binding post/stud 6, and passes through a wiring nut 8 and compress, T-shaped before
The rear end of joint 5 connects insulation plug, is now ring main unit normal operating condition.
Do not have a power failure access ring main unit time: be first turned on ring main unit, protective baffle plate 3 put into ring network cabinet body 2 internal upper part, side
Plate 302 makes its width and ring network cabinet body 2 width fits by the guiding of lead 303 to two Slideslips adjustment side plates 302；Its
Secondary fixing by the fixing line 15 on top board 301；Dismantle the shading ring in T-shaped front connector 5, finish and be dielectrically separated from work；Then
Open the rear end cap of T-shaped front connector 5, expose the Binding post/stud 6 in T-shaped front connector, because the oversheath of T-shaped front connector 5 is complete exhausted
Edge material, the insulating protection of Binding post/stud 6 and distance enough, do not have creepage phenomenon, extension bar 9 are put into insulated sleeve
In 901, the rear end that extension bar 9 pushes T-shaped front connector 5 with insulated sleeve 901 is connected with Binding post/stud 6；Then exit absolutely
Edge sleeve pipe 901, now one end of extension bar 9 highlights outside T-shaped front connector 5 rear end, because anti-bib is arranged at the top of ring network cabinet body 2
Plate 3, and T-shaped front connector oversheath around is all insulation material, therefore do not have creepage phenomenon；Finally by T-shaped rear joint 14
Accessing the rear end of T-shaped front connector 5, No. two binding posts 13 of bypass cable are connected with extension bar 9 other end, by No. two wiring
10, No. three wiring nuts 11 of nut compress, it is achieved bypass cable under live state with run ring main unit access, will insulation
Plug 12 is connected with the rear end of T-shaped rear joint 14, it is achieved all insulation of joint is closed, again shading ring 4 is inserted in respectively T-shaped before
The outer layer of joint 5 and T-shaped rear joint 14, in order to eliminate stored charge, withdraws from protective baffle plate 3, completes bypass cable and ring main unit
Do not have a power failure access.
Claims (4)
1. ring main unit do not have a power failure access cable auxiliary device, ring network cabinet body (2) in installation junction block (1), junction block (1)
Upper installation oversheath is the T-shaped front connector (5) of all insulation material, installs Binding post/stud (6), run cable in T-shaped front connector (5)
A binding post (7) be connected with junction block (1) by Binding post/stud (6) and pass through wiring nut (8) compression；It is special
Levy and be: to ring main unit configuration do not have a power failure access auxiliary device, described auxiliary device include supplementary insulation protective baffle plate and
Gap bridge mechanism two parts that auxiliary connects；The protective baffle plate (3) of described supplementary insulation includes top board (301) and side plate (302),
Having pilot hole on side plate (302), the both sides of top board (301) respectively install one block of side plate by lead (303) through pilot hole
(302), side plate (302) according to the interval width size of ring main unit by the guiding of lead (303) to two Slideslips；Described
The gap bridge mechanism that auxiliary connects includes extension bar (9), No. two wiring nuts (10), No. three wiring nuts (11), insulation plugs
(12), No. two binding posts (13) and T-shaped rear joint (14), extension bar (9) one end with internal thread hole, extension bar (9) another
End is external screw thread stud, and extension bar (9) one end is connected on the Binding post/stud (6) in T-shaped front connector (5) by internal thread hole,
The other end of extension bar (9) highlights outside the rear end of T-shaped front connector (5), after T-shaped rear joint (14) accesses T-shaped front connector (5)
End, on the external screw thread stud of the other end that No. two binding posts (13) of bypass cable are connected to extension bar (9), and by No. two
Wiring nut (10), No. three wiring nuts (11) compress, and insulation plug (12) is arranged on the rear end of T-shaped rear joint (14).
Ring main unit the most according to claim 1 does not have a power failure and accesses the auxiliary device of cable, it is characterized in that: on top board (301)
Fixing line (15) is installed.
Ring main unit the most according to claim 1 does not have a power failure and accesses the auxiliary device of cable, it is characterized in that: extension bar (9) is outward
Suit insulated sleeve (901).
Ring main unit the most according to claim 1 does not have a power failure and accesses the auxiliary device of cable, it is characterized in that: in T-shaped front connector
(5), it is respectively mounted shading ring (4) on T-shaped rear joint (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620706641.3U CN205811384U (en) | 2016-07-07 | 2016-07-07 | Ring main unit does not have a power failure and accesses the auxiliary device of cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620706641.3U CN205811384U (en) | 2016-07-07 | 2016-07-07 | Ring main unit does not have a power failure and accesses the auxiliary device of cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205811384U true CN205811384U (en) | 2016-12-14 |
Family
ID=58141270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620706641.3U Withdrawn - After Issue CN205811384U (en) | 2016-07-07 | 2016-07-07 | Ring main unit does not have a power failure and accesses the auxiliary device of cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205811384U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159758A (en) * | 2016-07-07 | 2016-11-23 | 国网江苏省电力公司淮安供电公司 | Ring main unit does not have a power failure and accesses the auxiliary device of cable |
-
2016
- 2016-07-07 CN CN201620706641.3U patent/CN205811384U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159758A (en) * | 2016-07-07 | 2016-11-23 | 国网江苏省电力公司淮安供电公司 | Ring main unit does not have a power failure and accesses the auxiliary device of cable |
| CN106159758B (en) * | 2016-07-07 | 2018-03-09 | 国网江苏省电力公司淮安供电公司 | Ring main unit, which does not have a power failure, accesses the servicing unit of cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161214 Effective date of abandoning: 20180309 |
|
| AV01 | Patent right actively abandoned |