CN208272368U - Electrical connection arrangement for the external DTU of high-tension switch cabinet - Google Patents
Electrical connection arrangement for the external DTU of high-tension switch cabinet Download PDFInfo
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- CN208272368U CN208272368U CN201821038459.0U CN201821038459U CN208272368U CN 208272368 U CN208272368 U CN 208272368U CN 201821038459 U CN201821038459 U CN 201821038459U CN 208272368 U CN208272368 U CN 208272368U
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- cable
- tension switch
- switch cabinet
- electrical connection
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- 239000011810 insulating material Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 13
- 239000004927 clay Substances 0.000 claims description 4
- 230000009970 fire resistant effect Effects 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 3
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 238000004079 fireproofing Methods 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- 239000011241 protective layer Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
Electrical connection arrangement for the external DTU of high-tension switch cabinet, belong to distribution automation field, solves the problems, such as the problem of poor existing DTU control fireproofing of cable ability, cold plasticity difference and anti-damage ability deficiency and existing DTU control overhead cabling method cause high-tension switch cabinet later period O&M difficult or waterproof ability declines.Electrical connection arrangement: N number of first through hole, N number of second through-hole and third through-hole are respectively arranged on the front panel, rear panel and bottom plate of cable box.N number of first through hole is opposite with before and after N number of second through-hole respectively, and the axis of a first through hole in N number of first through hole is vertical and coplanar with the axis of third through-hole.Perpendicular type cable is provided between one first through hole and third through-hole, the second corresponding through-hole of remaining each first through hole is provided commonly for setting up linear type cable.The both ends of two kinds of cables are respectively arranged with fast plug, and middle part is arranged with the protection pipe of insulation.Fire-proof heat-insulating material is filled in cable box.
Description
Technical field
The utility model relates to a kind of electrical connection arrangements, belong to distribution automation field.
Background technique
In recent years, as the densification of urban distribution network develops, the high-tension switch cabinet increasing number in all kinds of distribution stations.With
And come, DTU be connected to the secondary case terminal block of high-tension switch cabinet, rise distribution SCADA function control cable quantity
It is doubled and redoubled.
Existing DTU control cable mainly uses 6,8,10 core of KVVR type to control cable, this control cable be primarily present with
Lower problem:
One, fireproofing of cable ability is poor: high-tension switch cabinet is on fire mostly to be caused by short circuiting arc, and electric arc surface temperature is reachable
3000 DEG C~4000 DEG C, electric arc DIE Temperature is up to 10000 DEG C.And the insulating protective layer of KVVR type control cable is PVC material,
The burning point of PVC material is far below arc temperature.Therefore, in the case where high-tension switch cabinet is on fire, KVVR type controls the exhausted of cable
Edge protective layer is easily ignited, while generating a variety of toxic gases.
More seriously, after excessive fire, KVVR type control cable insulating protective layer after-flame, the exposed copper wire of multiply it
Between can directly occur uncertain short-circuit between conductors, cause DTU high-tension switch cabinet and to work normally high-tension switch cabinet to catching fire
Accidentally acquisition, accidentally control, and then lead to uncontrollable power grid accident of large area.
Two, the cold plasticity of cable insulation protective layer is poor: the plasticity of PVC material is reduced with the reduction of ambient temperature.When
When bending at low ambient temperatures to KVVR type control cable, easily lead to the damage for controlling insulating protective layer at cable folding
It is bad, and then lead to the insulating capacity decline for controlling cable.
On the other hand, when needing to lay DTU control cable at low ambient temperatures, it usually needs in suitable temperature
DTU control cable is bent under degree, then moves it to low temperature environment and is laid.However, applying due to DTU control cable
If path is complicated, length is too long, is difficult to realize accurate the bending to DTU control cable, and then cable laying quality is caused not reach
Mark.At the same time, when the DTU control cable after bending moves to low temperature environment, shape can occur for the bending place of DTU control cable
Becoming, needs to control DTU progress twice bended at cable folding, this not only will increase difficulty of construction, extend the construction time, and
It will lead to the accelerated ageing at DTU control cable folding.
Three, the anti-damage ability of cable is insufficient: due to the particularity of DTU control cable laying, existing DTU control cable is equal
For armorless cable.The anti-damage ability of this armorless cable is insufficient, often will appear the case where being destroyed by external force.
It does not seek unity of standard the laying position of existing DTU control cable.Since the front of high-tension switch cabinet is operation panel
And cable vault, rear portion are bus-bar room, bottom is high-tension cable inlet and outlet, and three above position can not lay DTU control cable.
Therefore, existing DTU control cable is usually laid in the secondary case of high-tension switch cabinet or the secondary upper box part of high-tension switch cabinet.
By mode of the DTU control cable laying in the secondary case of high-tension switch cabinet are as follows: by DTU control cable directly from high pressure
Entrance hole on the close side DTU of the secondary case of switchgear penetrates, and DTU control cable is located at the front of secondary terminals row.This
The characteristics of kind overhead cabling method are as follows: the number of wires in the secondary case of high-tension switch cabinet is laterally away from the side DTU from close DTU and passs
Subtract.According to the connecting line that 10 cores are spaced with 6 cores control cable for one, as soon as by taking the double 10 circuit switching stations of routine as an example,
10 cores control cable and 6 cores is needed to control each 20, cable.In this case, close to DTU mono- in the secondary case of high-tension switch cabinet
The DTU control cable that the secondary terminals row of side is almost crossed is blocked, and then is made troubles to later period maintenance work.
DTU is controlled into cable laying in the mode of the secondary upper box part of high-tension switch cabinet are as follows: set the DTU control cable of binding
It sets at the top of the secondary case of high-tension switch cabinet, DTU controls threading opening and secondary terminals of the cable through the secondary box top of high-tension switch cabinet
Son row is connected.Compared with DTU is controlled cable laying in the mode in the secondary case of high-tension switch cabinet, which is applied
Work process is simplified, and will not be blocked the secondary terminals row of high-tension switch cabinet, is convenient for later period maintenance work.However, due to needing
A biggish threading opening is opened up in the secondary box top of high-tension switch cabinet, which leads to the waterproof of high-tension switch cabinet
Ability is greatly reduced, and causes biggish security risk.In addition to this, DTU control cable is exposed to outer, will lead to self deterioration
Speed is accelerated, and safety is also unable to get guarantee.
Time-consuming, enor receving rate is high and influences high-voltage switch gear there is also construction for the system of laying of both the above DTU control cable
The common problem of cabinet flexible arrangement.
Utility model content
The utility model is to solve existing DTU to control poor fireproofing of cable ability, cold plasticity difference and anti-damage ability not
The problem of foot and existing DTU control overhead cabling method cause the later period O&M of high-tension switch cabinet difficult or waterproof ability decline
The problem of, propose a kind of electrical connection arrangement for the external DTU of high-tension switch cabinet.
Electrical connection arrangement described in the utility model for the external DTU of high-tension switch cabinet includes cable box, cable box
For rectangular box, it is respectively arranged with N number of first through hole 3 and N number of second through-hole 4 on the front panel 1 and rear panel 2 of cable box,
Third through-hole 6 is provided on the bottom plate 5 of cable box, N >=2, N are equal to the space-number of high-tension switch cabinet；
N number of first through hole 3 is opposite with N number of second through-hole, 4 front and back respectively, a first through hole 3 in N number of first through hole 3
Axis it is vertical and coplanar with the axis of third through-hole 6；
Be provided with perpendicular type cable 7 between one first through hole 3 and third through-hole 6, the upper end of perpendicular type cable 7 and
Lower end is respectively fast plug male connector 8 and fast plug female 9, and is each passed through one first through hole 3 and third through-hole 6
It is exposed to outside box；
The second corresponding through-hole 4 of remaining each first through hole 3 is provided commonly for setting up linear type cable 10, straight line
The front-end and back-end of type cable 10 are respectively fast plug male connector 8 and fast plug female 9, and are each passed through 3 He of first through hole
Second through-hole 4 is exposed to outside box；
Protection pipe is arranged in the middle section of perpendicular type cable 7 and linear type cable 10；
Protection pipe, which is adopted, to be made from an insulative material, and fire-proof heat-insulating material is filled in cable box.
As preferably, the top plate 11 of cable box is detachably arranged.
As preferably, top plate 11 and the upper open end of cable box are bolted, and are coated in the junction of the two
There is fire prevention clay.
As preferably, fast plug male connector 8 and fast plug female 9 are aviation plug.
As preferably, the internal diameter of first through hole 3, the second through-hole 4 and third through-hole 6 is equal to the outer diameter of protection pipe.
As preferably, bottom plate 5 is bolted with the secondary cabinet of high-tension switch cabinet, in the secondary case of high-tension switch cabinet
Position on body, opposite with third through-hole 6 offers cable threading hole.
As preferably, cable box is made of 316L stainless steel plate.
As preferably, protection pipe is made of crosslinked polyethylene.
As preferably, fire-proof heat-insulating material is packing material used in fire resistant doorsets.
Electrical connection arrangement described in the utility model for the external DTU of high-tension switch cabinet, in cable box and perpendicular type
It is filled with fire-proof heat-insulating material in the gap of cable and linear type cable, is able to ascend DTU control fireproofing of cable ability.
Electrical connection arrangement described in the utility model for the external DTU of high-tension switch cabinet, perpendicular type cable and straight line
Type cable is arranged in cable box, is also arranged with protection pipe in the outside of perpendicular type cable and linear type cable, cable box and
The setting of protection pipe greatly improves the anti-damage ability of DTU control cable.
Electrical connection arrangement described in the utility model for the external DTU of high-tension switch cabinet, is set in perpendicular type cable
On protection pipe can not only guarantee the bending angle of perpendicular type cable, and can prevent DTU control cable in ambient temperature
Deformation occurs when variation.In addition to this, adopt be made from an insulative material protection pipe can further guarantee DTU control cable it is exhausted
Edge ability.
In the use electrical connection arrangement described in the utility model for the external DTU of high-tension switch cabinet to high-tension switch cabinet
When secondary case and DTU are attached, need to determine the use of the electrical connection arrangement according to the interval quantity of high-tension switch cabinet
Quantity controls the position of the cabling design arrangement perpendicular type cable of cable and quantity and the position of linear type cable according to DTU.
First electrical connection arrangement and DTU plug connect, and connection, each electrical connection arrangement are plugged between multiple electrical connection arrangements
On the lower end of perpendicular type cable be connected through the threading hole of the secondary box top of high-tension switch cabinet and corresponding secondary wiring terminals.By
The corresponding cable threading hole positioned at the secondary box top of high-tension switch cabinet, high-voltage switch gear can be blocked in the bottom plate of electrical connection arrangement
The waterproof ability of cabinet can't decline.On the other hand, it since DTU control cable is respectively positioned in corresponding cable box, does not expose
Outside, solve because DTU control cable be exposed to it is outer due to cause to cause self deterioration speed to be accelerated and safe be unable to get guarantee
Problem.
Detailed description of the invention
It hereinafter will be based on the embodiments and with reference to the accompanying drawings come to be used for high-tension switch cabinet external to described in the utility model
The electrical connection arrangement of DTU is described in more detail, in which:
Fig. 1 is the explosive view described in embodiment for the electrical connection arrangement of the external DTU of high-tension switch cabinet；
Fig. 2 is the front view described in embodiment for the electrical connection arrangement of the external DTU of high-tension switch cabinet；
Fig. 3 is the rearview described in embodiment for the electrical connection arrangement of the external DTU of high-tension switch cabinet；
Fig. 4 is the top view described in embodiment for the electrical connection arrangement of the external DTU of high-tension switch cabinet；
Fig. 5 is the bottom view described in embodiment for the electrical connection arrangement of the external DTU of high-tension switch cabinet；
Fig. 6 is the explosive view of the electrical connection arrangement composite structure on the 8 interval high-tension switch cabinets that embodiment refers to；
Fig. 7 is the partial enlarged view of Fig. 6；
Fig. 8 is the bottom view of the electrical connection arrangement composite structure on the 8 interval high-tension switch cabinets that embodiment refers to.
Specific embodiment
The electrical connection arrangement described in the utility model for the external DTU of high-tension switch cabinet is made below in conjunction with attached drawing
It further illustrates.
Embodiment: the present embodiment is explained in detail below with reference to Fig. 1 to Fig. 8.
Electrical connection arrangement described in the present embodiment for the external DTU of high-tension switch cabinet includes cable box, and cable box is
Rectangular box is respectively arranged with 8 the second through-holes of first through hole 3 and 84, in electricity on the front panel 1 and rear panel 2 of cable box
Third through-hole 6 is provided on the bottom plate 5 of cable box；
8 first through hole 3 are opposite with 84 front and backs of the second through-hole respectively, a first through hole 3 in 8 first through hole 3
Axis it is vertical and coplanar with the axis of third through-hole 6；
Be provided with perpendicular type cable 7 between one first through hole 3 and third through-hole 6, the upper end of perpendicular type cable 7 and
Lower end is respectively fast plug male connector 8 and fast plug female 9, and is each passed through one first through hole 3 and third through-hole 6
It is exposed to outside box；
The second corresponding through-hole 4 of remaining each first through hole 3 is provided commonly for setting up linear type cable 10, straight line
The front-end and back-end of type cable 10 are respectively fast plug male connector 8 and fast plug female 9, and are each passed through 3 He of first through hole
Second through-hole 4 is exposed to outside box；
It is arranged with protection pipe in the middle section of perpendicular type cable 7 and linear type cable 10, protection pipe uses insulation material
Material is made, and fire-proof heat-insulating material is filled in cable box.
The top plate 11 of the cable box of the present embodiment is detachably arranged.The top plate 11 of the present embodiment and the upper open end of cable box
It is bolted, is coated with fire prevention clay in the junction of the two.The fast plug male connector 8 of the present embodiment and fast plug are female
First 9 be aviation plug.The internal diameter of the first through hole 3 of the present embodiment, the second through-hole 4 and third through-hole 6 is equal to protection pipe
Outer diameter.
The bottom plate 5 of the present embodiment is bolted with the secondary cabinet of high-tension switch cabinet, in the secondary cabinet of high-tension switch cabinet
The upper, position opposite with third through-hole 6 offers cable threading hole.
The cable box of the present embodiment is made of 316L stainless steel plate.The protection pipe of the present embodiment uses crosslinked polyethylene system
At.
The fire-proof heat-insulating material of the present embodiment is packing material used in fire resistant doorsets.
Electrical connection arrangement described in the present embodiment for the external DTU of high-tension switch cabinet has the advantage that
1, the cable box of the present embodiment is made of 316L stainless steel plate, improves the anti-moment of internal DTU control cable
High temperature capabilities, even temperature are up to 10000 DEG C, electric arc of the duration at 1 second or more, will not directly contact DTU control
Cable, and then it is effectively guaranteed the general safety operation of power grid.
2, the junction of top plate and cable box upper open end be coated with fire prevention clay, cable box and DTU control cable it
Between filled with packing material used in fire resistant doorsets.So set, further ensure that DTU controls fireproofing of cable ability.
3, it is designed for the electrical connection arrangement of the external DTU of high-tension switch cabinet using plug described in the present embodiment, it can
Efficiently solving the existing existing construction of DTU control overhead cabling method, time-consuming, enor receving rate is high and influences high-tension switch cabinet cloth
The problem of setting flexibility.
4, environmentally friendly recycling ability is promoted: according to being used for the external DTU's of high-tension switch cabinet described in the present embodiment
Material used by electrical connection arrangement is analyzed, electrically connecting for the external DTU of high-tension switch cabinet described in the present embodiment
The service life of connection device had recycling ability at 25 years or so.The existing DTU control cable design service life in 20 years,
But its waste degree of empirical discovery is very high, usually has update just to need replacing when changing in several years equipment.
Fig. 6 is the explosive view of the electrical connection arrangement composite structure on 8 interval high-tension switch cabinets.8 electrical connection arrangements
Electrical connection arrangement composite structure is constituted, the DTU control number of cables in electrical connection arrangement composite structure is successively decreased.
Although describing the utility model herein with reference to specific embodiment, it should be understood that, this
A little embodiments are only the examples of the principles of the present invention and application.It should therefore be understood that can implement to illustrative
Example carries out many modifications, and can be designed that other arrangements, practical without departing from sheet as defined in the appended claims
Novel spirit and scope.It should be understood that can be combined not by being different from mode described in original claim
Same dependent claims and feature described herein.It will also be appreciated that combining feature described in separate embodiments
It can be used in other embodiments.
Claims (9)
1. being used for the electrical connection arrangement of the external DTU of high-tension switch cabinet, which is characterized in that the electrical connection arrangement includes cable
Box, cable box are rectangular box, are respectively arranged with N number of first through hole (3) and N on the front panel (1) and rear panel (2) of cable box
A second through-hole (4) is provided with third through-hole (6), N >=2 on the bottom plate (5) of cable box；
N number of first through hole (3) is opposite with before and after N number of second through-hole (4) respectively, a first through hole in N number of first through hole (3)
(3) axis and the axis of third through-hole (6) are vertical and coplanar；
Be provided with perpendicular type cable (7) between one first through hole (3) and third through-hole (6), perpendicular type cable (7) it is upper
End and lower end are respectively fast plug male connector (8) and fast plug female (9), and are each passed through one first through hole (3)
It is exposed to outside box with third through-hole (6)；
Corresponding the second through-hole (4) of remaining each first through hole (3) is provided commonly for setting up linear type cable (10), directly
The front-end and back-end of line style cable (10) are respectively fast plug male connector (8) and fast plug female (9), and are each passed through first
Through-hole (3) and the second through-hole (4) are exposed to outside box；
Protection pipe is arranged in the middle section of perpendicular type cable (7) and linear type cable (10)；
Protection pipe, which is adopted, to be made from an insulative material, and fire-proof heat-insulating material is filled in cable box.
2. being used for the electrical connection arrangement of the external DTU of high-tension switch cabinet as described in claim 1, which is characterized in that cable box
Top plate (11) detachably be arranged.
3. being used for the electrical connection arrangement of the external DTU of high-tension switch cabinet as claimed in claim 2, which is characterized in that top plate
(11) it is bolted with the upper open end of cable box, is coated with fire prevention clay in the junction of the two.
4. being used for the electrical connection arrangement of the external DTU of high-tension switch cabinet as claimed in claim 3, which is characterized in that patch fastly
Head male connector (8) and fast plug female (9) are aviation plug.
5. being used for the electrical connection arrangement of the external DTU of high-tension switch cabinet as claimed in claim 4, which is characterized in that first is logical
The internal diameter in hole (3), the second through-hole (4) and third through-hole (6) is equal to the outer diameter of protection pipe.
6. being used for the electrical connection arrangement of the external DTU of high-tension switch cabinet as claimed in claim 5, which is characterized in that bottom plate (5)
Be bolted with the secondary cabinet of high-tension switch cabinet, on the secondary cabinet of high-tension switch cabinet, with third through-hole (6) opposite position
It sets and offers cable threading hole.
7. being used for the electrical connection arrangement of the external DTU of high-tension switch cabinet as claimed in claim 6, which is characterized in that cable box
It is made of 316L stainless steel plate.
8. being used for the electrical connection arrangement of the external DTU of high-tension switch cabinet as claimed in claim 7, which is characterized in that protection pipe
It is made of crosslinked polyethylene.
9. being used for the electrical connection arrangement of the external DTU of high-tension switch cabinet as claimed in claim 8, which is characterized in that anti-fire screen
Hot material is packing material used in fire resistant doorsets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821038459.0U CN208272368U (en) | 2018-07-02 | 2018-07-02 | Electrical connection arrangement for the external DTU of high-tension switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821038459.0U CN208272368U (en) | 2018-07-02 | 2018-07-02 | Electrical connection arrangement for the external DTU of high-tension switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208272368U true CN208272368U (en) | 2018-12-21 |
Family
ID=64691104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821038459.0U Active CN208272368U (en) | 2018-07-02 | 2018-07-02 | Electrical connection arrangement for the external DTU of high-tension switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208272368U (en) |
-
2018
- 2018-07-02 CN CN201821038459.0U patent/CN208272368U/en active Active
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