CN109193548A - A kind of band power frequency and high-frequency mutual inductor Voltage Cable Lines Construction cross-connect case - Google Patents
A kind of band power frequency and high-frequency mutual inductor Voltage Cable Lines Construction cross-connect case Download PDFInfo
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- CN109193548A CN109193548A CN201811245268.6A CN201811245268A CN109193548A CN 109193548 A CN109193548 A CN 109193548A CN 201811245268 A CN201811245268 A CN 201811245268A CN 109193548 A CN109193548 A CN 109193548A
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- case lid
- case
- cabinet
- protector
- connect
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- 238000010276 construction Methods 0.000 title claims abstract description 16
- 230000001012 protector Effects 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims description 54
- 239000011521 glass Substances 0.000 claims description 39
- 238000009413 insulation Methods 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 239000012212 insulator Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
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- 230000008901 benefit Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 7
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 210000002683 foot Anatomy 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003331 infrared imaging Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000008141 laxative Substances 0.000 description 1
- 230000002475 laxative effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/085—Cable junctions for coaxial cables or hollow conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Patch Boards (AREA)
Abstract
The embodiment of the invention discloses a kind of band power frequency and high-frequency mutual inductor Voltage Cable Lines Construction cross-connect casees, including cabinet, case lid component and the case inner assembly that box house is arranged in, wherein: cabinet extends around flange face, mounting hole is arranged in interval on flange face, is respectively arranged with coaxial wire incoming seal component, earthing pole, signal wire outlet seal assembly on the different side walls of cabinet；Case lid component is matched with cabinet, is provided with observation window, and case lid component at least two sides are provided with case lid pendant；Case inner assembly includes at least multiple supporting and mounting brackets; and it is set to multiple groups power current mutual inductor, HF current transformer and protector in the multiple supporting and mounting bracket; wherein; each power current mutual inductor one end and a coaxial wire, which are realized, to be connected; its other end is successively electrically connected with a HF current transformer and protector realization, and protector is connected by protector earth lug with earthing pole.Implement the embodiment of the present invention, have many advantages, such as rationally distributed, good insulating, convenient for observing, it is easy to disassemble and can vertically install.
Description
Technical field
The present invention relates to Voltage Cable Lines Construction field, in particular to a kind of band power frequency and high-frequency mutual inductor Voltage Cable Lines Construction
Cross-connect case.
Background technique
With the high speed development in city, to elements such as land used anxiety, public safety, landscape and the power grid securities in urban district
It is required that main large- and-medium size cities are largely using Voltage Cable Lines Construction substitution overhead transmission line to City Substation power transmission.High-voltage electricity
Cable routes cable and attachment main equipment and metallic shield grounding protection affiliated facility composition, long cable circuit to protective metal shell into
Row sectionalised protection grounding, most typical is cross-connect protective grounding mode, and this mode of connection need to pass through cross-connect
Grounding box is realized.
Voltage Cable Lines Construction is to solve long distance powedr transmission to generate excessively high induced voltage on cable metal sheath, is generally adopted
The segment length of limitation every section of cable of cable run is taken, meanwhile, take cross-connect to protect the cable metal sheath that three sections of three-phases are connected
Shield earthing mode is attached, and effectively inhibits the problem of long cable circuit crosses high induction voltage, this electric connecting mode
It is realized by cross-connect grounding box.With the development of smart grid demand, real time health status monitoring is proposed to route and is wanted
Ask, and this detection requirement need will test cable core state of insulation HF current transformer and detection cable oversheath it is exhausted
The power current mutual inductor of edge state is installed in cross-connect grounding box, but not yet occurs similar production in the prior art
Product.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of band power frequency and high-frequency mutual inductor Voltage Cable Lines Construction handed over
Fork interconnection case, may be implemented built-in power current mutual inductor and HF current transformer, rationally distributed, and good insulating is convenient for seeing
It examines, it is easy to disassemble and can vertically install.
In order to solve the above technical problem, the present invention provides a kind of band power frequencies and high-frequency mutual inductor Voltage Cable Lines Construction to intersect
Case is interconnected, including cabinet, case lid component and the case inner assembly that the box house is arranged in, in which:
The cabinet extends around flange face, interval setting mounting hole, the different sides of the cabinet on the flange face
Coaxial wire incoming seal component, earthing pole, signal wire outlet seal assembly are respectively arranged on wall；
The case lid component is matched with the cabinet, is provided with observation window, is arranged in the case lid component at least two sides
There is case lid pendant；
The case inner assembly includes at least multiple supporting and mounting brackets, and the multiple groups work being set in the multiple supporting and mounting bracket
Frequency current transformer, HF current transformer and protector, wherein each power current mutual inductor one end and a coaxial wire
Realize connection, the other end is successively electrically connected with a HF current transformer and protector realization, and the protector passes through guarantor
Shield device earth lug is connected with the earthing pole.
Wherein, the case inner assembly specifically includes:
It is set to the first fixed insulation board of the cabinet inner bottom surface, the second fixed insulation board, mutual inductor support plate and multiple
Supporting insulator；Described first fixed insulation board is in contact by the first fixed frame with the tank floor, and described second is fixed
Insulation board is in contact by the second fixed frame with the tank floor；Mutual inductor support plate passes through third fixed frame and the cabinet
Bottom surface is in contact；
The inside of the described first fixed insulation board is arranged in the mutual inductance support plate, has multiple card slots thereon；
There are three outer core fixing clamps for setting on the described first fixed insulation board；Three are provided on the described second fixed insulation board
A inner core fixing clamp；It is provided with a protector ground board in multiple supporting insulators, is arranged on the protector earth plate
There are three protectors；
Power current mutual inductor is sequentially set between each outer core fixing clamp and adjacent inner core fixing clamp and high-frequency current is mutual
Sensor；It is connected at top by protector connecting plate between each inner core fixing clamp protector adjacent thereto；It is protected at three
A signal wire hold-down bars is provided on device connecting plate；
Three cross-connect plates, wherein first cross-connect plate is connected to the first outer core fixing clamp and the second inner core fixing clamp
Between, second cross-connect plate is connected between the second outer core fixing clamp and third inner core fixing clamp, third interconnection plate
It is connected between the outer core fixing clamp of third and the first inner core fixing clamp；
Protector ground board is connected with earthing pole.
Wherein, each cross-connect plate is multisection type bending structure, is arranged with pyrocondensation insulation sleeve at least one section, described
One section for being arranged with pyrocondensation insulation sleeve is in contact with the card slot of the mutual inductance support plate.
Wherein, the case lid component successively includes: that case lid, bulletproof glass lower flange, bulletproof glass " O " type are close from bottom to up
Seal, bulletproof glass, the flat sealing ring of bulletproof glass, bulletproof glass upper flange, bulletproof glass upper flange fastening bolt；
Wherein, thread is empty among the case lid；The bulletproof glass lower flange, bulletproof glass, is prevented bulletproof glass " O " type sealing ring
Play the flat sealing ring of glass, bulletproof glass upper flange matches, and is fixed on institute by the bulletproof glass upper flange fastening bolt
It states on case lid；
Described case lid one end is provided with a case lid flexible handle；
The case lid surrounding is provided with mounting hole, and the flange face extended around with the cabinet matches, and passes through bolt sleeve
Part is cooperated, and case lid component pad side is provided between the case lid and the box flange face and box flange face is bis- " O "
Type sealing ring is to realize sealing between the two.
Wherein, it is above to be arranged at intervals with outwardly open first U-shaped that the cabinet, which extends around the mounting hole of flange face,
Slot is provided with limiting slot on the downside of every one first U-lag；
The mounting hole of the case lid component surrounding setting is to be arranged at intervals with outwardly open second U-lag；
Corresponding second U-lag alignment on the first U-lag and the case lid component on the flange face of the cabinet；
The bolt kit includes integrally formed hexagon operating side and screw rod, and the nut with screw rod cooperation；Its
In, the operating side of the bolt kit is installed in the limiting slot, and screw rod is embedded in first U-lag and the second U-lag,
Screw rod upper end is fixed by nut tightening.
Wherein, the coaxial cable incoming seal component includes: coaxial cable inlet wire inner tube, " O " type sealing ring, " O "
Type sealing ring pressure ring presses spring and compresses outer tube；
Wherein, it compresses on outer tube and is provided with sliding slot, be provided with card column on the coaxial cable inlet wire outer wall of inner tube, outside the compression
Pipe sleeve is located in the coaxial cable inlet wire inner tube, and the buckle of the two is realized by the cooperation between the card column and the sliding slot
Or release；" O " type sealing ring, " O " type sealing ring are provided between the compression outer tube and the coaxial cable inlet wire inner tube
Pressure ring and press spring.
Wherein, the signal wire outlet seal assembly includes:
Seal case flange, thread is empty among it, and thread sky portion is provided with sliding slot；
Sealing plate " O " type sealing ring, sky are located in the sliding slot；
Outlet sealing plate is provided with four through-holes；
One HF current transformer external terminal and three power current mutual inductor external terminals are sealed at described respectively
In through-hole；
Sealing plate fastening screw component, for the outlet sealing plate, seal case flange to be fixed on to the outer wall of the cabinet
On.
The implementation of the embodiments of the present invention has the following beneficial effects:
A kind of band power frequency provided by the invention and high-frequency mutual inductor Voltage Cable Lines Construction cross-connect case, it is compact-sized, it solves high
Voltage cable route Intelligent state monitors the installation question inside cross-connect grounding box of power frequency and HF current transformer；
Meanwhile cross-connect case of the invention can be mounted vertically on wall by cabinet fixed feet, it is easy for installation, and case lid
Pendant on component can reliably be hung on box flange with guard box cap assemblies, convenient for the dismounting operation of case lid component；
Moreover, cross-connect case many places of the invention use seal approach, sealing effect is good；
In addition, cross-connect case of the invention is due to being provided with U-type groove on cabinet and case lid component, by with bolt sleeve
The fast assembling-disassembling of grounding box cap assemblies may be implemented in the cooperation of part；
It,, can be with through observation window without opening case lid component in operation and maintenance moreover, case lid component has observation window
The operating status and connection state of very convenient and fast case inner part；Meanwhile it can and can be using infrared ray camera to cabinet
Interior equipment and junction carry out infrared detection, easily will be seen that the fever and connection of equipment by infrared imaging
Whether place's contact is good, simplifies operation and maintenance greatly so as to greatly improve service work shape rate, saves maintenance
Cost reduces service personnel, brings considerable economic benefit.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is that a kind of structure with power frequency and high-frequency mutual inductor Voltage Cable Lines Construction cross-connect case provided by the invention is shown
It is intended to；
Fig. 2 is the structural schematic diagram at another visual angle of Fig. 1；
Fig. 3 is the structural schematic diagram of cabinet in Fig. 1；
Fig. 4 is the partial schematic diagram in Fig. 3；
Fig. 5 is the fractionation structural representation of Fig. 1 raising middle flask cap assemblies；
Fig. 6 is the partial structural diagram of case lid in Fig. 5；
Fig. 7 is the structural schematic diagram of Fig. 1 raising middle flask inner assembly；
Fig. 8 is the structural schematic diagram of the China and foreign countries Fig. 7 core fixing clamp and inner core fixing clamp；
Fig. 9 is cross-connect plate and the first fixed insulation board in Fig. 8, the second fixed insulation board, the position between protector earth plate
Set relational graph；
Figure 10 is the location diagram in Fig. 8 between three cross-connect plates；
Figure 11 is the structural schematic diagram of Fig. 1 standard coaxial cable incoming seal component；
Figure 12 is the structural schematic diagram of signal wire outlet seal assembly in Fig. 1.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear and complete
Ground description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without making creative work it is obtained it is all its
Its embodiment, shall fall within the protection scope of the present invention.
Here, it should also be noted that, in order to avoid having obscured the present invention because of unnecessary details, in the accompanying drawings only
Show with closely related structure and/or processing step according to the solution of the present invention, and be omitted little with relationship of the present invention
Other details.
As shown in Figure 1, showing a kind of band power frequency of the embodiment of the present invention and high-frequency mutual inductor Voltage Cable Lines Construction is intersected
Interconnect the structural schematic diagram of case；It is combined shown in Fig. 2 to Figure 10 together, in this embodiment, the band power frequency and high-frequency mutual inductor
Voltage Cable Lines Construction cross-connect case, including cabinet 1, case lid component 2 and the case inner assembly 3 being arranged in inside the cabinet 1,
Wherein:
The cabinet 1 extends around flange face 10, the interval setting mounting hole 13 on the flange face 10, the cabinet 1
Coaxial wire incoming seal component 4, earthing pole 14, signal wire outlet seal assembly 5 are respectively arranged on different side walls；
The case lid component 2 is matched with the cabinet 1, is provided with observation window, is set in at least two sides of case lid component 1
It is equipped with case lid pendant 29；
The case inner assembly 3 includes at least multiple supporting and mounting brackets, and the multiple groups being set in the multiple supporting and mounting bracket
Power current mutual inductor 316, HF current transformer 317 and protector 39, wherein each 316 one end of power current mutual inductor
It realizes and connects with a coaxial wire, the other end is successively electrically connected with a HF current transformer 317 and a protector 39 realization
It connects, the protector 39 is connected by protector earth lug 38 with the earthing pole.
Following subsequent each figures of combination illustrate more detailed structure of the invention.
As shown in Figure 3 and Figure 4, the cabinet 1 extend around flange face 10 mounting hole 13 be above be arranged at intervals with to
First U-lag of outward opening is provided with limiting slot 130 on the downside of every one first U-lag；
The mounting hole 270 of 27 surrounding of the case lid component setting is to be arranged at intervals with outwardly open second U-lag；
Corresponding second U-lag alignment on the first U-lag and the case lid component 2 on the flange face 10 of the cabinet 1；
The bolt kit 6 includes integrally formed hexagon operating side and screw rod, and the nut with screw rod cooperation；Its
In, the operating side of the bolt kit 6 is installed in the limiting slot 130, and screw rod is embedded in first U-lag and the second U-shaped
In slot, screw rod upper end is fixed by nut tightening.
As shown in figs. 5 and 6, wherein the case lid component 1 successively includes: case lid 27, bulletproof glass laxative remedy from bottom to up
Orchid 26, bulletproof glass 24, the flat sealing ring 23 of bulletproof glass, bulletproof glass upper flange 22, prevents bulletproof glass " O " type sealing ring 25
Play glass upper flange fastening bolt 21；
Wherein, thread is empty among the case lid 27；The bulletproof glass lower flange 26, bulletproof glass " O " type sealing ring 25, shellproof glass
The flat sealing ring 23 of glass 24, bulletproof glass, bulletproof glass upper flange 22 match, and fasten spiral shell by the bulletproof glass upper flange
Bolt 21 is fixed on the case lid 27；
Described 27 one end of case lid is provided with a case lid flexible handle 28, and the case lid 27 at least two sides are provided with case lid pendant
29；
27 surrounding of case lid is provided with mounting hole 270, and the flange face extended around with the cabinet matches, and passes through spiral shell
Bolt external member 6 is cooperated, and case lid component pad side is provided between the case lid and the box flange face or box flange face is double
" O " type sealing ring 210 is to realize sealing between the two.
In case lid component 2, using the visual design, using bulletproof glass as observation window, it may be implemented to internal portion
The visual inspection of part state, finds visible defects in time.It can satisfy simultaneously infrared to internal part progress using infrared camera
Detection finds visual defect early.Using upper and lower flange face, " O " type sealing ring, flat type sealing ring, observation window can be made anti-
The sealing performance for playing glass reaches IP68.Meanwhile being designed using case lid pendant, so that case lid component can when cabinet right angle setting
To be reliably hung on box flange, convenient for the dismounting operation of case lid component.
As shown in Figure 7 to 10, specifically, the case inner assembly 3 specifically includes:
It is set to the first fixed insulation board 31, second fixed insulation board 33, mutual inductor support plate 311 of 1 inner bottom surface of cabinet
And multiple supporting insulators 37；Described first fixed insulation board 31 is connected by the first fixed frame 32 with 1 bottom surface of cabinet
Touching, the described second fixed insulation board 33 are in contact by the second fixed frame 34 with 1 bottom surface of cabinet；Mutual inductor support plate 311
It is in contact by third fixed frame 312 with 1 bottom surface of cabinet；
The inside of the described first fixed insulation board 31 is arranged in the mutual inductance support plate 311, has multiple card slots thereon；
There are three outer core fixing clamps 35 for 31 settings on the described first fixed insulation board；It is set on the described second fixed insulation board 33
Inner core fixing clamp 36 there are three setting；A protector ground board 38, the protector are provided in multiple supporting insulators 37
There are three protectors 39 for setting on earth plate 38；Outer core fixing clamp 35 and inner core fixing clamp 36 are respectively used to fixed outer core and interior
Core.
316 He of power current mutual inductor is sequentially set between each outer core fixing clamp 35 and adjacent inner core fixing clamp 36
HF current transformer 317；Pass through protector connecting plate at top between each inner core fixing clamp 36 protector 39 adjacent thereto
38 are connected；A signal wire hold-down bars 313 is provided on three protector connecting plates 38,313 both ends of signal wire hold-down bars are set
It is equipped with hold-down bars support frame 314；
Three cross-connect plates 315, wherein first cross-connect plate is connected to the first outer core fixing clamp and fixes with the second inner core
Between folder, second cross-connect plate is connected between the second outer core fixing clamp and third inner core fixing clamp, third interconnection
Plate is connected between the outer core fixing clamp of third and the first inner core fixing clamp；
Protector ground board 38 is connected with earthing pole 12.
Wherein, each cross-connect plate 315 is multisection type bending structure, is arranged with pyrocondensation insulation sleeve at least one section
3151, wherein pyrocondensation insulation sleeve 3151 is for the cross-connect plate 315 to insulate with other component.In example, wherein
One section that is arranged with pyrocondensation insulation sleeve 3151 and the mutual inductance branch are stated in first cross-connect plate and second cross-connect plate
The card slot of fagging is in contact.
It is understood that cross-connect connecting plate uses side arrangement form in the case in component, can effectively drop
The thickness of low cabinet saves material cost, meanwhile, it can be to prevent with cross-connect connecting plate Opposite direction connection；
Cross-connect plate installs pyrocondensation insulation sleeve additional, can effectively solve the installation question of hotline maintenance personnel；
Mutual inductor support plate is set, can solve the fixation problem of grounding box right angle setting power frequency and high-frequency mutual inductor；
Setting signal line hold-down bars can solve power frequency and high-frequency mutual inductor outlet orientation problem.
As shown in figure 11, the coaxial cable incoming seal component 4 includes: coaxial cable inlet wire inner tube 41, and " O " type is close
Seal 42, " O " type sealing ring pressure ring 43 press spring 44 and compress outer tube 45；
Wherein, about 45 two sides of outer tube are compressed and is provided with sliding slot, the coaxial cable inlet wire outer wall of inner tube upper and lower sides are respectively provided with
Have card column, the compression outer tube 45 is set in the coaxial cable inlet wire inner tube 41, by the card column and the sliding slot it
Between cooperation realize both buckle or release；It is provided between the compression outer tube 45 and the coaxial cable inlet wire inner tube 41
" O " type sealing ring 42, " O " type sealing ring pressure ring 43 and presses spring 44.
In one example, using " O " type sealing ring, washer, spring and press inner and outer pipes design so that " O " type is close
Seal obtains continuous, meets IP68 waterproof performance requirement.
As shown in figure 12, the signal wire outlet seal assembly 5 includes:
Seal case flange 55, thread is empty among it, and thread sky portion is provided with sliding slot；
Sealing plate " O " type sealing ring 54, sky is located in the sliding slot；
Outlet sealing plate 53 is provided with four through-holes；
One HF current transformer external terminal 521 and three power current mutual inductor external terminals 52, difference sealed set
In the through-hole of the outlet sealing plate 53；
Sealing plate fastening screw component 51, for the outlet sealing plate 53, seal case flange 52 to be fixed on the cabinet 1
Outer wall on.
In one example, using signal wire outlet board, " O " type sealing ring, flange face, the close of signal wire outlet board is realized
Sealing property reaches IP68.Meanwhile power current mutual inductor external terminal and HF current transformer external terminal are connected using IP68
Connect device, it is ensured that signal wire and external connection do not destroy cabinet entirety IP68 waterproofing grade.
Installation process of the invention is as follows:
Cabinet is installed on wall appropriate location, is fixed on wall by four cabinet fixed feets；Earth cable is fixed with cabinet
One of connection in foot is connected to earth mat earth polar connecting plate, realizes cabinet ground connection；
Cabinet earthing pole is connected to be grounded by connecting cable with earth mat earth polar connecting plate to be connect；
Coaxial cable exploits cable core insulation and outer core is exhausted by core fixing clamp spacing and nip width inside and outside coaxial cable in cabinet
After edge layer, and cable is passed through into coaxial cable incoming seal component and power frequency and high-frequency electrical mutual inductor and is carried out to inside and outside core fixing clamp
It is fixed, and coaxial cable incoming seal component is installed in place；
Coaxial cable incoming seal component connection line and power current mutual inductor external terminal are attached, and wiring is fixed
In signal wire hold-down bars；
It covers case lid component and is installed in place fastening bolt.
Completing above-mentioned steps is to complete the installation application of grounding box.
The present invention can be applied to 110kV and above Voltage Cable Lines Construction, can implement function part with branch
Point, in the non-installation condition monitoring system of route, can go out withouyt power frequency and HF current transformer, body side signal wire
Linear sealing plate is packaged using flatbed manner.When route installation condition monitors system, then by power frequency and high-frequency current mutual inductance
Device is installed in case, and synchronous signal line outlet sealing plate uses perforated panel, and installs corresponding power current mutual inductor external connection
End carries out interior external connection；It can also be installed in place together.
The invention has the following beneficial effects:
A kind of band power frequency provided by the invention and high-frequency mutual inductor Voltage Cable Lines Construction cross-connect case, it is compact-sized, it solves high
Voltage cable route Intelligent state monitors the installation question inside cross-connect grounding box of power frequency and HF current transformer；
Meanwhile cross-connect case of the invention can be mounted vertically on wall by cabinet fixed feet, it is easy for installation, and case lid
Pendant on component can reliably be hung on box flange with guard box cap assemblies, convenient for the dismounting operation of case lid component；
Moreover, cross-connect case many places of the invention use seal approach, sealing effect is good；
In addition, cross-connect case of the invention is due to being provided with U-type groove on cabinet and case lid component, by with bolt sleeve
The fast assembling-disassembling of grounding box cap assemblies may be implemented in the cooperation of part；
It,, can be with through observation window without opening case lid component in operation and maintenance moreover, case lid component has observation window
The operating status and connection state of very convenient and fast case inner part；Meanwhile it can and can be using infrared ray camera to cabinet
Interior equipment and junction carry out infrared detection, easily will be seen that the fever and connection of equipment by infrared imaging
Whether place's contact is good, simplifies operation and maintenance greatly so as to greatly improve service work shape rate, saves maintenance
Cost reduces service personnel, brings considerable economic benefit.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection scope of the application.
Claims (7)
1. a kind of band power frequency and high-frequency mutual inductor Voltage Cable Lines Construction cross-connect case, including cabinet, case lid component and setting
In the case inner assembly of the box house, it is characterised in that:
The cabinet extends around flange face, interval setting mounting hole, the different sides of the cabinet on the flange face
Coaxial wire incoming seal component, earthing pole, signal wire outlet seal assembly are respectively arranged on wall；
The case lid component is matched with the cabinet, is provided with observation window, is arranged in the case lid component at least two sides
There is case lid pendant；
The case inner assembly includes at least multiple supporting and mounting brackets, and the multiple groups work being set in the multiple supporting and mounting bracket
Frequency current transformer, HF current transformer and protector, wherein each power current mutual inductor one end and a coaxial wire
Realize connection, the other end is successively electrically connected with a HF current transformer and protector realization, and the protector passes through guarantor
Shield device earth lug is connected with the earthing pole.
2. cross-connect case as described in claim 1, which is characterized in that the case inner assembly specifically includes:
It is set to the first fixed insulation board of the cabinet inner bottom surface, the second fixed insulation board, mutual inductor support plate and multiple
Supporting insulator；Described first fixed insulation board is in contact by the first fixed frame with the tank floor, and described second is fixed
Insulation board is in contact by the second fixed frame with the tank floor；Mutual inductor support plate passes through third fixed frame and the cabinet
Bottom surface is in contact；
The inside of the described first fixed insulation board is arranged in the mutual inductance support plate, has multiple card slots thereon；
There are three outer core fixing clamps for setting on the described first fixed insulation board；Three are provided on the described second fixed insulation board
A inner core fixing clamp；It is provided with a protector ground board in multiple supporting insulators, is arranged on the protector earth plate
There are three protectors；
Power current mutual inductor is sequentially set between each outer core fixing clamp and adjacent inner core fixing clamp and high-frequency current is mutual
Sensor；It is connected at top by protector connecting plate between each inner core fixing clamp protector adjacent thereto；It is protected at three
A signal wire hold-down bars is provided on device connecting plate；
Three cross-connect plates, wherein first cross-connect plate is connected to the first outer core fixing clamp and the second inner core fixing clamp
Between, second cross-connect plate is connected between the second outer core fixing clamp and third inner core fixing clamp, third interconnection plate
It is connected between the outer core fixing clamp of third and the first inner core fixing clamp；
Protector ground board is connected with earthing pole.
3. cross-connect case as claimed in claim 2, which is characterized in that each cross-connect plate is multisection type bending structure,
Pyrocondensation insulation sleeve, the card slot of one section for being arranged with pyrocondensation insulation sleeve and the mutual inductance support plate are arranged on its at least one section
It is in contact.
4. cross-connect case as claimed in claim 3, which is characterized in that the case lid component successively includes: case from bottom to up
Lid, bulletproof glass lower flange, bulletproof glass " O " type sealing ring, bulletproof glass, the flat sealing ring of bulletproof glass, method on bulletproof glass
Blue and bulletproof glass upper flange fastening bolt；
Wherein, thread is empty among the case lid；The bulletproof glass lower flange, bulletproof glass, is prevented bulletproof glass " O " type sealing ring
Play the flat sealing ring of glass, bulletproof glass upper flange matches, and is fixed on institute by the bulletproof glass upper flange fastening bolt
It states on case lid；
Described case lid one end is provided with a case lid flexible handle；
The case lid surrounding is provided with mounting hole, and the flange face extended around with the cabinet matches, and passes through bolt sleeve
Part is cooperated, and case lid component pad side is provided between the case lid and the box flange face and box flange face is bis- " O "
Type sealing ring is to realize sealing between the two.
5. cross-connect case as claimed in claim 4, which is characterized in that the cabinet extends around the mounting hole of flange face
To be above arranged at intervals with outwardly open first U-lag, limiting slot is provided on the downside of every one first U-lag；
The mounting hole of the case lid component surrounding setting is to be arranged at intervals with outwardly open second U-lag；
Corresponding second U-lag alignment on the first U-lag and the case lid component on the flange face of the cabinet；
The bolt kit includes integrally formed hexagon operating side and screw rod, and the nut with screw rod cooperation；Its
In, the operating side of the bolt kit is installed in the limiting slot, and screw rod is embedded in first U-lag and the second U-lag,
Screw rod upper end is fixed by nut tightening.
6. cross-connect case as claimed in claim 5, which is characterized in that the coaxial cable incoming seal component includes: same
Shaft cable inlet wire inner tube, " O " type sealing ring pressure ring, presses spring and compresses outer tube at " O " type sealing ring；
Wherein, it compresses on outer tube and is provided with sliding slot, be provided with card column on the coaxial cable inlet wire outer wall of inner tube, outside the compression
Pipe sleeve is located in the coaxial cable inlet wire inner tube, and the buckle of the two is realized by the cooperation between the card column and the sliding slot
Or release；" O " type sealing ring, " O " type sealing ring are provided between the compression outer tube and the coaxial cable inlet wire inner tube
Pressure ring and press spring.
7. cross-connect case as claimed in claim 6, which is characterized in that the signal wire outlet seal assembly includes:
Seal case flange, thread is empty among it, and thread sky portion is provided with sliding slot；
Sealing plate " O " type sealing ring, sky are located in the sliding slot；
Outlet sealing plate is provided with four through-holes；
One HF current transformer external terminal and three power current mutual inductor external terminals are sealed at described respectively
In through-hole；
Sealing plate fastening screw component, for the outlet sealing plate, seal case flange to be fixed on to the outer wall of the cabinet
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245268.6A CN109193548B (en) | 2018-10-24 | 2018-10-24 | High-voltage cable circuit cross interconnection box with power frequency and high-frequency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245268.6A CN109193548B (en) | 2018-10-24 | 2018-10-24 | High-voltage cable circuit cross interconnection box with power frequency and high-frequency transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109193548A true CN109193548A (en) | 2019-01-11 |
| CN109193548B CN109193548B (en) | 2024-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811245268.6A Active CN109193548B (en) | 2018-10-24 | 2018-10-24 | High-voltage cable circuit cross interconnection box with power frequency and high-frequency transformer |
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| Country | Link |
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| CN (1) | CN109193548B (en) |
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| CN111342420A (en) * | 2020-04-03 | 2020-06-26 | 广东电网有限责任公司 | Visual cable grounding box |
| CN111509649A (en) * | 2019-01-30 | 2020-08-07 | 大唐东营发电有限公司 | Temporary debugging power supply configuration scheme |
| WO2020198875A1 (en) * | 2019-04-05 | 2020-10-08 | hvGrid-tech Inc. | Sheath-bonding link box |
| US11183828B1 (en) | 2020-06-12 | 2021-11-23 | hvGrid-tech Inc. | Device with health monitoring |
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