CN208316239U - A kind of quick transfer box of 0.4kV - Google Patents
A kind of quick transfer box of 0.4kV Download PDFInfo
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- CN208316239U CN208316239U CN201821044899.7U CN201821044899U CN208316239U CN 208316239 U CN208316239 U CN 208316239U CN 201821044899 U CN201821044899 U CN 201821044899U CN 208316239 U CN208316239 U CN 208316239U
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- cable
- pressing bolt
- line pressing
- terminal block
- pipeline
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Abstract
The utility model provides a kind of quick transfer box of 0.4kV, including box main body of transferring, inlet wire cable plug device and outlet cable attachment device, outlet cable attachment device includes four outlet cable connecting terminal blocks, outlet cable connecting terminal block includes terminal block cover, terminal block cover is insulation cover, pipeline there are five being set in each terminal block cover, five pipelines are arranged along the length direction of outlet cable connecting terminal block, the longitudinal section of pipeline is L-shaped, terminal body is respectively equipped in pipeline, terminal body is equipped with cable inserting hole and line pressing bolt hole, cable inserting hole and line pressing bolt hole are right against two nozzles of pipeline respectively, terminal body is threaded with line pressing bolt at line pressing bolt hole.The utility model provides a kind of quick transfer box of 0.4kV that can guarantee that outlet cable lines branch contact is good, insulating properties is strong.
Description
Technical field
The utility model relates to power system device technical field more particularly to a kind of quick transfer boxes of 0.4kV.
Background technique
As cable is in a large amount of uses of low-voltage network, how cable run realizes sharing of load, increasingly by people
Attention.Cable run will realize sharing of load, will necessarily be involved in the problems, such as that insulation breakdown and conductor couple two aspects.Why
Sample guarantees the good contact of joint location conductor and insulation recovery, is that low-voltage cable lines branch is successfully crucial.It is previous to solve
The traditional product of cable run branch is to be bolted into and out of line cable using drilling on exposed bronze medal and realize electricity
The sharing of load on cable road.This cable run branching method often there is contacts poor, the not strong security risk of insulating properties,
It when accessing cable, need to be handled using copper aluminum wire clamp or copper-aluminium transition nose, installation trouble, high expensive.
Summary of the invention
The purpose of this utility model is to provide one kind can guarantee that outlet cable lines branch contact is good, insulating properties is strong
The quick transfer box of 0.4kV.
In order to achieve the above object, the utility model adopts the following technical solution:
A kind of quick transfer box of 0.4kV, including switching box main body, inlet wire cable plug device connect dress with outlet cable
It sets, the switching box main body is a closing shell, and the switching box main body includes chamber door, and the outlet cable attachment device is fixed
Be arranged on the switching box main body, the inlet wire cable plug device is fixed on the switching box main body, it is described into
Line cable plug device and the outlet cable attachment device are electrically connected, and the outlet cable attachment device includes four outlets
Cable connecting terminal row, the outlet cable connecting terminal block includes terminal block cover, and the terminal block cover is insulation cover,
Pipeline there are five setting in each terminal block cover, the longitudinal section of the pipeline is L-shaped, is respectively equipped in each pipeline
Terminal body, the terminal body are equipped with cable inserting hole and line pressing bolt hole, the cable inserting hole and line pressing bolt hole difference
Two nozzles of the pipeline are right against, the terminal body is threaded with line pressing bolt at the line pressing bolt hole.
Further, the terminal body is in cuboid, and the outer wall of the terminal body is matched with the inner wall of the pipeline.
Further, the line pressing bolt bottom end be equipped with crimping plane, the line pressing bolt be equipped with hexagon ring, described six
The center on the line pressing bolt top is arranged in corner apertures.
Further, a kind of outlet cable attachment device further includes installation folded plate, the outlet cable terminal block
It is fixed on the installation folded plate.
Further, the installation folded plate is stepped, and the outlet cable connecting terminal block is mounted on the installation folding
On the ladder of plate, the cable inserting hole tilts down setting.
Further, the pipeline is equipped with waterproof and dustproof cover at the pipeline opening for being right against the line pressing bolt hole, described
Waterproof and dustproof cover is threadedly coupled with the pipeline opening in line pressing bolt hole described in face.
Further, the inner wall of the pipe of the terminal block cover is coated with ceramic insulating layer.
After adopting the above technical scheme, the utility model has the advantages that
1, the quick transfer box of a kind of 0.4kV provided by the utility model, passes through inlet wire cable plug device and outlet cable
Attachment device plays the role of the quick switching of the multichannel 0.4KV outlet cable exported to box-type substation, will need to have a power failure originally
6-8 hours power failure operation time became completing in half an hour power failure；Inlet wire cable and outlet cable are carried out by transfer box
Switching avoids the problem of outlet cable length not enough turns power supply.Outlet cable attachment device crimps outlet by line pressing bolt
The longitudinal section of the mode of cable, pipeline is L-shaped, so that line pressing bolt and outlet cable perpendicular contact, conductor contact is good, installation
It is convenient, outlet is flexible；Exterior insulation of the peripheral hardware terminal block cover as outlet cable attachment device, operator is not and as leading
The terminal body of electric body directly contacts, so that outlet cable attachment device has good insulation performance；It is supplied using three-phase five-wire mode
Electric mode, five pipelines of outlet cable connecting terminal block are separately connected three phase lines (A, B, C line) of three-phase electricity, zero curve (N
Line) and ground wire (PE line), when avoiding in three-phase four-wire power supply due to threephase load imbalance and low voltage electric network zero
When line is too long and impedance is excessive, zero curve will have zero-sequence current to pass through, and too long low voltage electric network is due to environmental degradation, conducting wire aging,
The leakage current of the factors such as dampness, conducting wire forms closed circuit by zero curve, and zero curve is caused also with certain current potential, to transport to safety
The very unfavorable problem of row；Four outlet cable connecting terminal blocks can have up to 12 branch's outlets, it can be achieved that cell multichannel
Power transmission.
2, the terminal body of cuboid is limited the movement and rotation of terminal body in terminal block cover by terminal block cover, with
It avoids cable inserting hole and line pressing bolt hole and two nozzles of terminal block cover pipeline in terminal body from being staggered, cable is caused to be worn
It inserts difficulty, the generation of the case where line pressing bolt can not be tightened.
3, line pressing bolt has crimping plane, to increase the contact area of line pressing bolt and outlet cable, so that conductor connects
Touching is good.Line pressing bolt is arranged inside terminal block cover, needs to match by die nut and the hexagon ring in line pressing bolt
It closes, rotation die nut makes line pressing bolt tighten or unclamp, so that line pressing bolt is small in size, outlet cable connecting terminal block knot
Structure is compact.
4, installation folded plate is for fixing each outlet cable connecting terminal block, so that each outlet cable connecting terminal block and switching
Box main body is fixedly connected.
5, installation folded plate is stepped, and outlet cable connecting terminal block is mounted on the ladder of installation folded plate, so that cable
Inserting hole tilts down setting, convenient for the arrangement of each outlet branch cable.
6, waterproof and dustproof cover is set at the pipeline opening for being right against line pressing bolt hole in the pipeline of terminal block cover, to avoid
The transfer box because caused by water and dust enter switching box main body damages.
7, ceramic insulating layer is coated in inner wall of the pipe.The high mechanical strength of ceramic insulating layer, can be used as terminal body
Insulating supporting, fixed and protection terminal body；Ceramic insulating layer dielectric constant is small, and dielectric loss is low, dielectric strength with higher,
Insulation resistance, to enhance the insulation performance of outlet cable attachment device；Ceramic insulating layer thermal conductivity with higher can will be held
The heat Quick diffusing generated at daughter and cable connector is into air.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawing:
Fig. 1 is a kind of structural schematic diagram of the quick transfer box of 0.4kV in the utility model.
Fig. 2 is a kind of side view of the quick transfer box of 0.4kV in the utility model.
Fig. 3 is the structural schematic diagram of outlet cable attachment device in the utility model.
Fig. 4 is the side view of outlet cable attachment device in the utility model.
Fig. 5 is the structural schematic diagram of outlet cable connecting terminal block in the utility model.
Marked the names of the parts are as follows in figure:
1, switching box main body；101, chamber door；102, mounting hole；2, inlet wire cable plug device；3, outlet cable connection dress
It sets；31, outlet cable connecting terminal block；32, folded plate is installed；301, terminal block cover；302, terminal body；3021, cable is interspersed
Hole；3022, line pressing bolt hole；303, line pressing bolt；3031, crimping plane；3032, hexagon ring；304, waterproof and dustproof cover.
Specific embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, the utility model provides a kind of quick transfer box of 0.4kV, including switching box main body 1, inlet wire
Cable plug device 2 and outlet cable attachment device 3.
Box main body 1 of transferring is a closing shell, and switching box main body 1 includes chamber door 101.Inlet wire cable plug device 2 connects
Main power source inlet wire cable and backup power source inlet wire cable, wherein main power source by utility grid transformer export, backup power source by
Generator output.Outlet cable attachment device 3 connects each outlet cable.Inlet wire cable plug device 2 connect dress with outlet cable
Set 3 electric connections.
Inlet wire cable plug device 2 includes four inlet wire cable connecting terminals, and four inlet wire cable connecting terminals connect respectively
Connect A phase, B phase, C phase three-phase electricity cable and zero curve.Inlet wire cable connecting terminal includes wall bushing and connecting terminal box.Transfer box
It is set in the one side wall of main body 1 there are four mounting hole 102, is arranged with corresponding wall bushing respectively in each mounting hole 102.
Outlet cable attachment device 3 is fixed in switching box main body 1 by installing folded plate 32, and installation folded plate 32 passes through
Bolt is fixedly connected with switching box main body 1.
As shown in Figure 3, Figure 4, outlet cable attachment device 3 includes four outlet cable connecting terminal blocks 31, outlet cable
Terminal block 31 is fixed on installation folded plate 32, and installation folded plate 32 is stepped, and outlet cable terminal block 31 is fixed at
On the ladder for installing folded plate 32.
As shown in figure 5, outlet cable connecting terminal block 31 includes terminal block cover 301, terminal block cover 301 is insulating boot
Body, further, terminal block cover 301 are epoxy plastics cover.
Pipeline there are five being set in each terminal block cover 301, length of five pipelines along outlet cable connecting terminal block 31
Direction setting.Using three-phase five-wire mode power supply mode, five pipelines of outlet cable connecting terminal block 31 are separately connected three-phase electricity
Three phase lines (A, B, C line), zero curve (N line) and ground wire (PE line).Due to the setting of five pipelines, outlet cable terminals
It is longer on son 31 length directions of row, therefore two pieces are set by installation folded plate 32, two blocks of installation folded plates 32 are vertically arranged, outlet electricity
The both ends of cable connecting terminal block 31 are separately mounted on two blocks of installation folded plates 32, to reduce the materials'use of installation folded plate 32.
Terminal body 302 is equipped in each pipeline, terminal body 302 is aluminium alloy terminal body.Inner wall of the pipe is coated with ceramics
Insulating layer, the heat dissipation being used as at the insulating supporting and enhancing terminal body of terminal body.Terminal body 302 is interspersed equipped with cable
Hole 3021 and line pressing bolt hole 3022, cable inserting hole 3021 and line pressing bolt hole 3022 are right against two pipes of pipeline respectively
Mouthful, the longitudinal section of each pipeline is L-shaped, enables 3022 vertical compression outlet cable of line pressing bolt hole.Due to outlet electricity
Cable terminal block 31 is fixed on the ladder of installation folded plate 32, enables cable inserting hole 3021 tilt down setting, in order to each
The arrangement of outlet branch cable.Terminal body 302 is threaded with line pressing bolt 303 at line pressing bolt hole 3022.Line pressing bolt
303 bottom ends are equipped with crimping plane 3031, to increase the contact area of line pressing bolt 303 Yu outlet cable, so that conductor contact is good
It is good.Line pressing bolt 303 is equipped with hexagon ring 3032, and the center on 303 top of line pressing bolt is arranged in hexagon ring 3032.Hexagonal
Hexagon ring 3032 on spanner and line pressing bolt 303 cooperates, and rotation die nut makes line pressing bolt 303 tighten or unclamp.
Terminal body 302 is in cuboid, and the outer wall of terminal body 302 is matched with the inner wall of pipeline.The terminal of cuboid
Body 302 is limited the movement and rotation of terminal body 302 in terminal block cover 301 by terminal block cover 301, to avoid terminal body
Cable inserting hole 3021 and line pressing bolt hole 3022 and two nozzles of 301 pipeline of terminal block cover on 302 are staggered, and lead to electricity
The interspersed difficulty of cable can not tighten the generation of the case where line pressing bolt 303.
Pipeline is equipped with waterproof and dustproof cover 304 at the pipeline opening for being right against line pressing bolt hole 3022, to avoid because of water and dirt
Soil enters the damage of transfer box caused by transfer box.Waterproof and dustproof cover 304 is epoxy plastics lid, waterproof and dustproof cover 304 and face
The pipeline opening in line pressing bolt hole 3022 is threadedly coupled.
In addition to above preferred embodiment, for the utility model there are also other embodiments, those skilled in the art can root
It is made various changes and modifications according to the utility model, without departing from the spirit of the utility model, should belong to the utility model
Range defined in appended claims.
Claims (7)
1. a kind of quick transfer box of 0.4kV, which is characterized in that including switching box main body, inlet wire cable plug device and outlet electricity
Cable attachment device, the switching box main body are a closing shell, and the switching box main body includes chamber door, the outlet cable connection
Device is fixed on the switching box main body, and the inlet wire cable plug device is fixed at the switching box main body
On, the inlet wire cable plug device and the outlet cable attachment device are electrically connected, the outlet cable attachment device packet
Four outlet cable connecting terminal blocks are included, the outlet cable connecting terminal block includes terminal block cover, the terminal block cover
For the cover that insulate, set that there are five pipelines in each terminal block cover, the longitudinal section of the pipeline is L-shaped, each pipe
Terminal body is respectively equipped in road, the terminal body is equipped with cable inserting hole and line pressing bolt hole, the cable inserting hole and pressure
Line screw hole is right against two nozzles of the pipeline respectively, and the terminal body is threaded with pressure at the line pressing bolt hole
Line screw.
2. the quick transfer box of a kind of 0.4kV according to claim 1, which is characterized in that the terminal body is in cuboid,
The outer wall of the terminal body is matched with the inner wall of the pipeline.
3. the quick transfer box of a kind of 0.4kV according to claim 1, which is characterized in that the line pressing bolt bottom end is equipped with
Crimping plane, the line pressing bolt are equipped with hexagon ring, and the center on the line pressing bolt top is arranged in the hexagon ring.
4. the quick transfer box of a kind of 0.4kV according to claim 1, which is characterized in that a kind of 0.4kV quickly turns
Connecing case further includes installation folded plate, and the outlet cable terminal block is fixed on the installation folded plate.
5. the quick transfer box of a kind of 0.4kV according to claim 4, which is characterized in that the installation folded plate is stepped,
The outlet cable connecting terminal block is mounted on the ladder of the installation folded plate, and the cable inserting hole tilts down setting.
6. the quick transfer box of a kind of 0.4kV according to claim 1, which is characterized in that the pipeline be right against it is described
Waterproof and dustproof cover, the pipeline opening in line pressing bolt hole described in the waterproof and dustproof cover and face are equipped at the pipeline opening in line pressing bolt hole
It is threadedly coupled.
7. a kind of quick transfer box of 0.4kV described in any one in -6 according to claim 1, which is characterized in that the end
The inner wall of the pipe of son row's cover is coated with ceramic insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821044899.7U CN208316239U (en) | 2018-07-02 | 2018-07-02 | A kind of quick transfer box of 0.4kV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821044899.7U CN208316239U (en) | 2018-07-02 | 2018-07-02 | A kind of quick transfer box of 0.4kV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208316239U true CN208316239U (en) | 2019-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821044899.7U Active CN208316239U (en) | 2018-07-02 | 2018-07-02 | A kind of quick transfer box of 0.4kV |
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| CN (1) | CN208316239U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711800A (en) * | 2018-07-02 | 2018-10-26 | 国网浙江慈溪市供电有限公司 | A kind of quick transfer boxes of 0.4kV |
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2018
- 2018-07-02 CN CN201821044899.7U patent/CN208316239U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711800A (en) * | 2018-07-02 | 2018-10-26 | 国网浙江慈溪市供电有限公司 | A kind of quick transfer boxes of 0.4kV |
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