CN209488104U - Cross interconnection box grounding box with built-in ammeter - Google Patents
Cross interconnection box grounding box with built-in ammeter Download PDFInfo
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- CN209488104U CN209488104U CN201821419729.2U CN201821419729U CN209488104U CN 209488104 U CN209488104 U CN 209488104U CN 201821419729 U CN201821419729 U CN 201821419729U CN 209488104 U CN209488104 U CN 209488104U
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Abstract
The embodiment of the utility model discloses a cross interconnection box grounding box with a built-in ammeter, which comprises a box body, a box cover and an internal device arranged in the box body; a flange surface extends from the periphery of the box body, mounting holes are formed in the flange surface at intervals, mounting holes are formed in the periphery of the box cover at intervals, and the mounting holes in the flange surface on the periphery of the box body are aligned with the mounting holes in the periphery of the box cover and are fixed through bolts; be provided with the observation window in the middle of the case lid, the observation window includes: the observation window base and the bulletproof glass are fixed on the box cover; the box body is further internally provided with an ammeter mounting plate, an ammeter arranged on the ammeter mounting plate and a current transformer matched with the ammeter. Implement the embodiment of the utility model provides a, need not to uncap and can observe the current numerical value of incasement high tension cable sheath, improved maintenance efficiency and security.
Description
Technical field
The utility model relates to Voltage Cable Lines Construction field, in particular to the cross-connect case of a kind of in-built electrical flow table is grounded
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.
During daily Voltage Cable Lines Construction operation and maintenance, the induced current of cable metal sheath need to be supervised
It surveys, to find whether the oversheath insulation of cable damages.To the protective metal shell induced electricity of Voltage Cable Lines Construction cross-connect unit
Stream monitoring then needs to open cross-connect grounding box, while just can be carried out the induction to cable metal sheath using current detecting instrument
Current detecting, cross-connect case need to be opened by existing, and be detected using current detecting instrument, need to handle work ticket before operation, to work
Industry personnel qualification is high, and working efficiency is low, it is difficult to pressure-sensitive current cycle of the bulk power grid to Voltage Cable Lines Construction cable metal sheath
Property detection the problems such as, to be unfavorable for Voltage Cable Lines Construction safe and stable operation.
Utility model content
Technical problem to be solved by the utility model is to provide a kind of cross-connect case of in-built electrical flow table ground connection
Case can observe the current values of sheath of hv cable in case without uncapping, improve overhaul efficiency.
In order to solve the above-mentioned technical problem, the cross-connect that the embodiments of the present invention provide a kind of in-built electrical flow table connects
Ground case, including cabinet, case lid and the internal components that the box house is arranged in, in which:
The cabinet extends around flange face, the interval setting mounting hole on the flange face, between the case lid surrounding
It is aligned, and passes through with the mounting hole of the case lid surrounding every the mounting hole on setting mounting hole, the flange face of the cabinet surrounding
Bolt is fixed；
Observation window is provided among the case lid, the observation window includes: the observation window bottom being fixed on the case lid
Seat and bulletproof glass；
It further comprise the electric current for having ammeter mounting plate, being mounted on the ammeter mounting plate in the cabinet
Table, and the current transformer matched with the ammeter.
Preferably, there are three inlet wire pipes for setting in the cabinet one side wall, are arranged on another side wall of the cabinet
There is earthing pole casing.
Preferably, the internal components include at least: more cross-over blocks, two pieces of insulation boards, earthing pole connecting plate, coaxial electrical
The fixed fitting of the outer core conductor of cable, three pieces of cross-connect side plates, the fixed fitting of coaxial cable inner core conductor, protector and three pieces of guarantors
Protect device connecting plate.
Preferably, the current transformer is three, and is annular, is respectively sleeved on described piece of cross-connect side plate；
The ammeter mounting plate is covered on one piece of insulation board and mutually fixes with cabinet, and the ammeter is mounted on the ammeter
On mounting plate.
Implement the utility model embodiment, has the following beneficial effects:
The cross-connect case grounding box of in-built electrical flow table provided by the utility model is not necessarily in operation and maintenance
Open case lid, through observation window, can very convenient and fast case inner part operating status and connection state；
A kind of this practical in-built electrical flow table cross-connect grounding box, the faradic inspection to high-voltage cable metal sheath
It surveys, need to only penetrate the windowpane of cross-connect grounding box, the current value for directly reading in-built electrical flow table three-phase can be completed, to people
Member's competency profiling is low, and operation is easy, and there is no livewire work risks greatly to reduce labor intensity and personnel's skill requirement, improves
Detection efficiency.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of structural schematic diagram of the interconnection case grounding box of in-built electrical flow table provided by the utility model；
Fig. 2 is the structural schematic diagram for not installing ammeter in Fig. 1 raising middle flask；
Fig. 3 is the structural schematic diagram in Fig. 2 raising middle flask after installation ammeter.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It describing clear and completely, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are in the premise for not making creative work
Under all other embodiment obtained, fall within the protection scope of the utility model.
Here, it should also be noted that, in order to avoid having obscured the utility model because of unnecessary details, in the accompanying drawings
It illustrate only the structure and/or processing step closely related with scheme according to the present utility model, and be omitted practical with this
The little other details of new relationship.
As shown in Figure 1, showing the cross-connect grounding box structural schematic diagram of in-built electrical flow table provided by the utility model；
It combines shown in Fig. 2 and Fig. 3 together, the grounding box includes cabinet 1, case lid 2, and the inside inside the cabinet 1 is arranged in
Device, in which:
The cabinet 1 extends around flange face 10, and the first mounting hole 11 is arranged at intervals on the flange face 10；
2 circumferentially-spaced of case lid is provided with the second mounting hole 21, the first mounting hole on the flange face 10 of the cabinet 1
11 and the case lid 2 on corresponding second mounting hole 21 be aligned, and be fixed by multiple bolt (not shown).
Observation window 4 is provided among the case lid 2, the observation window includes: the observation window being fixed on the case lid 2
Pedestal 40, the bulletproof glass 42 with the observation window pedestal 40 cooperation.It in some instances, can be by being placed on the observation
Then bulletproof glass 42 is placed in the O-ring seal by the O-ring seal on window pedestal 40, then in the shellproof glass
Glass 42 presses one piece of bulletproof glass pressing ring to realize, wherein bulletproof glass pressing ring can be fixed with 40 phase of observation window pedestal；
In one example, the O-ring seal refers to that the section of the sealing ring is O-shaped.
Wherein, the observation window pedestal is that four side walls surround window structure；Four side wall tops extend outwardly shape
At lower flange, side wall top is provided with O shape groove；The O-ring seal is installed in the O shape groove；The shellproof glass
Glass pressing ring pushes down the surrounding of the bulletproof glass, and forms upper flange in the bulletproof glass pressing ring surrounding, the upper flange with
The lower flange matches, and is fixed by bolt.In one embodiment, prevent in the bulletproof glass pressing ring with described
Playing between glass further comprises having the second O-ring seal.
It wherein, further comprise having ammeter mounting plate 51, being mounted on the ammeter mounting plate 51 in the cabinet 1
On ammeter 52, and the current transformer 50 matched with the ammeter 52, specifically, the ammeter 52 with it is each
Current transformer 50 is electrically connected and (is not drawn into figure) by conducting wire.
More specifically, there are three inlet wire pipes 12 for setting in 1 one side wall of cabinet, in another side wall of the cabinet 1
On be provided with earthing pole casing 13.
The internal components include at least: multiple cross-over blocks 141, insulation board 142, earthing pole connecting plate 143, coaxial electrical
The fixed fitting 145 of the outer core conductor of cable, cross-connect side plate 146, the fixed fitting 147 of coaxial cable inner core conductor, protector 148 with
And protector connecting plate 149.
Wherein, multiple cross-over blocks 141 are provided on the bottom surface in the cabinet 1；
Two pieces of insulation boards 142, parallel and interval setting, both ends are fixed on 141 upper surface of cross-over block, wherein
First insulation board is arranged at intervals with the fixed fitting 145 of the outer core conductor of three coaxial cables close to three inlet wire pipes 12 thereon；
The fixed fitting 147 of three coaxial cable inner core conductors is arranged at intervals on second insulation board；
Earthing pole connecting plate 143 is set on cross-over block 141, and parallel with two pieces of insulation boards 142 and be in
In same level, one end is connected with the earthing pole casing 3；
Wherein, fixed 145 upper surface of fitting of the outer core conductor of three coaxial cables of the first insulation board is separately connected an intersection
Interconnect side plate 146, a coaxial cable inner core conductor on each other end and the second insulation board for intersecting mutual side plate 11
The upper surface of fixed fitting 147 is connected；
Three protectors 148, each protector 148 are cylindrical structure, and connection conductive column is stretched out at both ends；Each protector
148 are vertically fixed on earthing pole connecting plate 143, and the upper end connection conductive column card is fixed with 149 one end of protector connecting plate, institute
The other end for stating protector connecting plate 149 is connected with the upper surface of the fixed fitting 147 of a coaxial cable inner core conductor.
Specifically, three pieces of cross-connect side plates 146 by " downwards right-falling stroke " or " pressing down downwards " mode with the coaxial cable of two sides outside
Core conductor fixes the fixed fitting 147 of fitting 145, coaxial cable inner core conductor and is connected.
In one example, the cabinet 1, inlet wire pipe 12, box flange face 11, case lid 2 are all made of stainless steel material；Institute
It states the fixed fitting 145 of the outer core conductor of coaxial cable, cross-connect side plate 146, the fixed fitting 147 of coaxial cable inner core conductor, protect
Shield device connecting plate 149, earthing pole connecting plate 143 are all made of copper product, and the cross-over block 141 and insulation board 142 are all made of ring
Oxygen plate.
Wherein, the current transformer 50 is three, and is annular, is respectively sleeved at described piece of cross-connect side plate 146
On；The ammeter mounting plate 51 is covered on one piece of insulation board 142 and fixes with 1 phase of cabinet, and the ammeter 52 is installed
On the ammeter mounting plate 51, the ammeter 52 and 50 mutual induction of current transformer are obtained by described
Three-phase electricity flow valuve on cross-connect side plate 146.It can be understood that current transformer 50 and ammeter 52 are the prior art,
Herein without being described in detail,
It is understood that in the present invention, oversheath of the cross-connect grounding box for high-tension cable road is grounded
The cross-connect wiring of protection, three-phase have stripped external insulation to the coaxial cable of appropriate length from cross-connect grounding box three
Inlet wire pipe pierces into case, connects respectively with the fixed fitting of corresponding internal and external conductor, by cross-connect side plate, by " downwards right-falling stroke " or
Three coaxial cable internal and external conductor of " right-falling stroke downwards " mode, which is jumped, to be led to, by any inner core of three coaxial cable inlet wires and other one
Outer core is electrically connected, and realizes core cross-connect effect inside and outside inlet wire coaxial cable, and the inside and outside core of coaxial cable connects respectively
The protective metal shell of insulation both sides of head is connect, therefore, is realized by cross-connect case and is intersected in cable insulated joint three-phase protective metal shell
Downlink connection.
Implement the utility model embodiment, has the following beneficial effects:
A kind of cross-connect grounding box of in-built electrical flow table provided by the utility model, in operation and maintenance, nothing
Case lid need to be opened, through observation window, can very convenient and fast case inner part operating status and connection state；
A kind of cross-connect grounding box of in-built electrical flow table provided by the utility model, the sense to high-voltage cable metal sheath
The detection of electric current is answered, the windowpane of cross-connect grounding box need to be only penetrated, directly read the current value of in-built electrical flow table three-phase i.e.
Achievable, low to personnel qualifications, operation is easy, and there is no livewire work risks greatly to reduce labor intensity and personnel's skill
It can require, improve detection efficiency.
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 (4)
1. including cabinet, case lid and the box house is arranged in a kind of cross-connect case grounding box of in-built electrical flow table
Internal components, it is characterised in that:
The cabinet extends around flange face, and interval setting mounting hole, the case lid circumferentially-spaced are set on the flange face
Mounting hole is set, the mounting hole on the flange face of the cabinet surrounding is aligned with the mounting hole of the case lid surrounding, and passes through bolt
It is fixed；
Be provided with observation window among the case lid, the observation window include: the observation window pedestal that is fixed on the case lid with
And bulletproof glass；
It further comprise the ammeter for having ammeter mounting plate, being mounted on the ammeter mounting plate in the cabinet, with
And the current transformer matched with the ammeter.
2. a kind of cross-connect case grounding box of in-built electrical flow table as described in claim 1, which is characterized in that in the cabinet
There are three inlet wire pipes for setting in one side wall, are provided with earthing pole casing on another side wall of the cabinet.
3. a kind of cross-connect case grounding box of in-built electrical flow table as described in claim 1, which is characterized in that the internal device
Part includes at least: the fixed fitting of the outer core conductor of more cross-over blocks, two pieces of insulation boards, earthing pole connecting plate, coaxial cable, three pieces of friendships
Fork interconnection side plate, the fixed fitting of coaxial cable inner core conductor, protector and three block protector connecting plates.
4. a kind of cross-connect case grounding box of in-built electrical flow table as claimed in claim 3, which is characterized in that the electric current is mutual
Sensor is three, and is annular, is respectively sleeved on described piece of cross-connect side plate；The ammeter mounting plate is covered on one piece
It is mutually fixed on insulation board and with cabinet, the ammeter is mounted on the ammeter mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821419729.2U CN209488104U (en) | 2018-08-31 | 2018-08-31 | Cross interconnection box grounding box with built-in ammeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821419729.2U CN209488104U (en) | 2018-08-31 | 2018-08-31 | Cross interconnection box grounding box with built-in ammeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209488104U true CN209488104U (en) | 2019-10-11 |
Family
ID=68111525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821419729.2U Active CN209488104U (en) | 2018-08-31 | 2018-08-31 | Cross interconnection box grounding box with built-in ammeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209488104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11183828B1 (en) | 2020-06-12 | 2021-11-23 | hvGrid-tech Inc. | Device with health monitoring |
-
2018
- 2018-08-31 CN CN201821419729.2U patent/CN209488104U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11183828B1 (en) | 2020-06-12 | 2021-11-23 | hvGrid-tech Inc. | Device with health monitoring |
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