CN208384877U - Simulation device for low resistance and flashover fault of medium-voltage cable - Google Patents
Simulation device for low resistance and flashover fault of medium-voltage cable Download PDFInfo
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- CN208384877U CN208384877U CN201721672642.1U CN201721672642U CN208384877U CN 208384877 U CN208384877 U CN 208384877U CN 201721672642 U CN201721672642 U CN 201721672642U CN 208384877 U CN208384877 U CN 208384877U
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- hemisphere
- support
- cable
- electric discharge
- voltage cable
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- 238000004088 simulation Methods 0.000 title abstract 2
- 238000007789 sealing Methods 0.000 claims description 18
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000012549 training Methods 0.000 abstract description 17
- 239000004020 conductor Substances 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Testing Relating To Insulation (AREA)
Abstract
The utility model relates to the technical field of electrical equipment, in particular to a simulation device for low resistance and flashover fault of a medium-voltage cable, which comprises a sealed waterproof box; cable inlet holes are formed in the two sides of the sealed waterproof box, and medium-voltage cables are arranged through the cable inlet holes in the two sides; fixed first support and the second support of being equipped with in sealed waterproof box bottom, be equipped with first hemisphere that discharges through first connecting piece on the first support, be equipped with the second hemisphere that discharges through the second connecting piece on the second support, first hemisphere and the second hemisphere that discharges set up in opposite directions, and the distance between first hemisphere and the second hemisphere that discharges can be adjusted. The utility model discloses an interval of the hemisphere that discharges of adjusting the discharge gap device realizes cable low resistance or flashover fault type, can implement to duplicate cable fault type many times, requires to change fault type at any time according to the training course, need not prepare cable and annex at every turn, need not specific preparation fault type at every turn, promotes training efficiency and reduces the training cost betterly.
Description
Technical field
The utility model relates to technical field of electric equipment, are used for midium voltage cable low-resistance and sudden strain of a muscle more particularly, to one kind
The simulator of network failure.
Background technique
Midium voltage cable failure is mainly in the failure of midium voltage cable medial head, and failure is usually expressed as low-resistance or arcing fault,
To guarantee power supply reliability, needs quick and precisely to find out fault point after the generation of cable mid head failure and could carry out failure and rob
Work is repaired, however can skillfully grasp this project skill's lazy weight at present, needs quickly to train certain amount this respect
Skill.The end after midium voltage cable or failure can only be used by carrying out this project skills training at present, when training because
To be unable to multiple copies fault type.Low resistance faults training only uses cable stripping of insulatin layer that conductor is grounded to form ground connection event
Hinder point, arcing fault equally uses cable stripping of insulatin layer setting conductor and the fault point for being grounded this formation discharging gap, electric discharge
Gap is difficult to control spacing, is required between needing waste a large amount of on cable stripping of insulatin layer when carrying out training every time, and opening
The fault point cannot be reused after having opened up primary training, cause training cost larger, low efficiency, and result of training is undesirable.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of for midium voltage cable low-resistance and flashover
The simulator of failure can change at any time fault type according to the demand of different Course Trainings.
To solve the above problems, technical solution provided by the utility model are as follows: one kind is used for midium voltage cable low-resistance and flashover
The simulator of failure, wherein including sealing caisson；The sealing caisson two sides are equipped with cable access aperture, pass through
The cable access aperture of two sides is equipped with midium voltage cable；First support and second are fixed in the sealing caisson bottom
Frame is equipped with the first electric discharge hemisphere by the first connector in the first support, connects in the second support by second
Fitting is equipped with the second electric discharge hemisphere, and the described first electric discharge hemisphere is oppositely arranged with the second electric discharge hemisphere, the first electric discharge hemisphere and
The distance between second electric discharge hemisphere can be adjusted；First connector or the second connector passes through conducting wire and midium voltage cable
Electrical connection, first connector or the second connector ground connection.
In the present invention, the predetermined position that will act as training midium voltage cable strips the external protection of certain length, choosing
It takes a wherein phase to strip the main insulating layer of certain length, cable conductor is connected to any one electric discharge hemisphere with one section of copper conductor
Side, then connect cable sheath with electric discharge hemisphere ground side and sealing caisson with one section of Special grounding copper conductor.Pass through tune
The spacing of section electric discharge hemisphere realizes cable low-resistance or arcing fault type, when the hemisphere that discharges is adjusted to two hemispheres contact just
It is low-impedance earthed system failure, in non-contacting position is exactly flashover ground failure when electric discharge hemisphere adjusts two hemispheres, so adjusting can be with
Implement multiple copies cable fault type.
Further, the cable access aperture is connected with the tool of the fastening clip for cable for fixing midium voltage cable.Cable into
Enter at hole and has toward extension outside sealing caisson equipped with fastening clip for cable.Cable passes through cable access aperture, has by fastening clip for cable
Cable is fixed, convenient for the progress of test.
Further, the sealing caisson includes cabinet and case lid, and the cabinet and case lid are hinged.It is being put
When electrically operated, case lid is covered, avoids accident, when needing to be changed fault type, case lid is opened, and carries out test behaviour
Make.
Further, the first support, second support are bolted the bottom in cabinet.
Preferably, the first electric discharge hemisphere and the second electric discharge hemisphere are located in same horizontal line.
Preferably, first connector and first electric discharge hemisphere be integrally formed, second connector with
Second electric discharge hemisphere is integrally formed.
Preferably, first connector and the second connector are to adjust bolt, adjust bolt and pass through nut circle
Column is flexibly connected with first support and second support.Changed between the first electric discharge hemisphere and the second electric discharge hemisphere by adjusting bolt
Distance, it is easy to operate.
Preferably, the first support and second support are insulating materials composition.
Compared with prior art, beneficial effect is: provided by the utility model a kind of for midium voltage cable low-resistance and flashover
The simulator of failure realizes cable low-resistance or arcing fault class by adjusting the spacing of electric discharge hemisphere of discharging gap apparatus
Type, when the hemisphere that discharges is adjusted to being exactly low-impedance earthed system failure when two hemispheres contact, when electric discharge hemisphere adjusts two hemispheres non-
Contact position is exactly flashover ground failure, and so adjusting can be implemented multiple copies cable fault type, is wanted according to training course
It asks and changes fault type at any time, do not need to prepare cable and attachment every time, be not necessarily to each particular production fault type, preferably mention
It rises training efficiency and reduces training cost.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；In order to better illustrate this embodiment, attached
Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable.Being given for example only property of positional relationship is described in attached drawing
Illustrate, should not be understood as the limitation to this patent.
As shown in Figure 1, a kind of be used for midium voltage cable low-resistance and arcing fault simulator, wherein including sealing caisson
1, sealing caisson 1 includes cabinet and case lid, and cabinet and case lid are hinged；Sealing 1 two sides of caisson are equipped with cable access aperture,
It is equipped with fastening clip for cable tool 10 toward extension outside sealing caisson 1 at the cable access aperture, is set by the cable access aperture of two sides
There is midium voltage cable 2, midium voltage cable 2 is fixed by fastening clip for cable tool 10；Bottom, which is bolted, in sealing caisson 1 sets
There are first support 3 and second support 4, passes through adjusting bolt in first support 3 and be equipped with the first electric discharge hemisphere 5, lead in second support 4
Bolt is overregulated equipped with the second electric discharge hemisphere 6, is adjusted bolt by nut cylinder 9 and is fixed on first support 3 and second support 4
On；Bolt is adjusted to be integrally formed with the first electric discharge electric discharge hemisphere 6 of hemisphere 5, second；First electric discharge hemisphere 5 and the second electric discharge half
Ball 6 is oppositely arranged, and is located in same horizontal line；The distance between first electric discharge hemisphere 5 and the second electric discharge hemisphere 6 can pass through tune
Section adjusts bolt to change the relative distance of the two, adjusts bolt and is electrically connected by conducting wire with midium voltage cable 2, while adjusting bolt
Ground connection.
In the present invention, the predetermined position that will act as training midium voltage cable 2 strips the external protection of certain length, choosing
It takes a wherein phase to strip the main insulating layer 11 of certain length, cable conductor 12 is connected to any one electric discharge with one section of copper conductor
Hemisphere side, then connect cable sheath with electric discharge hemisphere ground side and sealing caisson 1 with one section of Special grounding conducting wire 13.It is logical
The spacing for overregulating electric discharge hemisphere realizes cable low-resistance or arcing fault type, when the hemisphere that discharges is adjusted to two hemispheres contact
Time is exactly low-impedance earthed system failure, is exactly flashover ground failure when electric discharge hemisphere adjusts two hemispheres in non-contacting position, so adjusts
Multiple copies cable fault type can be implemented.
Specifically embodiment:
A length 500mm, width 400mm are made, height 300mm stainless steel seals caisson 1, and cabinet is equipped with case lid,
Case lid is hinged with cabinet；2 access aperture of midium voltage cable is set in cabinet two sides, cable enters bore dia and regards different cable specification outer diameters
Depending on, cable access aperture extends welding cable stationary fixture 10 outward, and the length of fastening clip for cable tool 10 is 60mm, jaw thickness
5mm；Two brackets are fixed in the intracorporal bottom of case, and bracket is made of insulating materials 3D printing, support height 120mm, wide
Degree is 80mm, and bracket is fixed by bolts on sealing caisson 1, two sides cradle top 40mm down, in support width takes
Heart point is that respectively to set an internal diameter be 10mm screw hole with the fixed hemisphere that discharges in the center of circle, and two sides, which are discharged, hemisphere and to be adjusted bolt and use copper
Material is processed and formed at one time, and the diameter for the hemisphere that discharges is 30mm, and the adjusting diameter of bolt is 10mm, length 60mm, adjusts bolt
External is the position of 9 lock adjustment bolt of 10mm nut cylinder with an internal diameter；It will act as the predetermined position of training midium voltage cable 2
Stripping length is 400mm external protection, chooses a wherein phase and strips 11 length 50mm of main insulating layer, will with one section of 4mm2 copper conductor
Cable conductor 12 is connected to electric discharge hemisphere side of wire, then with one section of 4mm2 Special grounding conducting wire 13 by 2 armor of midium voltage cable and
Hemisphere ground side of discharging and stainless steel sealing caisson 1 connect.Spacing by adjusting electric discharge hemisphere realizes cable low-resistance or sudden strain of a muscle
Network fault type is exactly low-impedance earthed system failure when the hemisphere that discharges is adjusted to two hemispheres contact, when electric discharge hemisphere adjusts two
Hemisphere is exactly flashover ground failure in non-contacting position, and so adjusting can be implemented multiple copies cable fault type.
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (8)
1. a kind of simulator for midium voltage cable low-resistance and arcing fault, which is characterized in that including sealing caisson (1)；
Described sealing caisson (1) two sides are equipped with cable access aperture, are equipped with midium voltage cable (2) by the cable access aperture of two sides；
First support (3) and second support (4) are fixed in described sealing caisson (1) bottom, in the first support (3)
It is equipped with the first electric discharge hemisphere (5) by the first connector (7), is equipped in the second support (4) by the second connector (8)
Second electric discharge hemisphere (6), first electric discharge hemisphere (5) are oppositely arranged with the second electric discharge hemisphere (6), the first electric discharge hemisphere
(5) it can be adjusted with the second electric discharge the distance between hemisphere (6), first connector (7) or the second connector (8) pass through
Conducting wire is electrically connected with midium voltage cable (2), first connector (7) or the second connector (8) ground connection.
2. a kind of simulator for midium voltage cable low-resistance and arcing fault according to claim 1, which is characterized in that
The cable access aperture is connected with the tool of the fastening clip for cable for fixing midium voltage cable (2) (10).
3. a kind of simulator for midium voltage cable low-resistance and arcing fault according to claim 1, which is characterized in that
The sealing caisson (1) includes cabinet and case lid, and the cabinet and case lid are hinged.
4. a kind of simulator for midium voltage cable low-resistance and arcing fault according to claim 3, which is characterized in that
The first support (3), second support (4) are bolted set on the bottom of box.
5. a kind of simulator for midium voltage cable low-resistance and arcing fault according to claim 2 or 3, feature exist
In first electric discharge hemisphere (5) is located in same horizontal line with the second electric discharge hemisphere (6).
6. a kind of simulator for midium voltage cable low-resistance and arcing fault according to claim 5, which is characterized in that
First connector (7) is integrally formed with the first electric discharge hemisphere (5), second connector (8) and the second electric discharge half
Ball (6) is integrally formed.
7. a kind of simulator for midium voltage cable low-resistance and arcing fault according to claim 6, which is characterized in that
First connector (7) and the second connector (8) is to adjust bolt, adjusts bolt and passes through nut cylinder (9) and first
Frame (3) and second support (4) are flexibly connected.
8. a kind of simulator for midium voltage cable low-resistance and arcing fault according to claim 1, which is characterized in that
The first support (3) and second support (4) is insulating materials composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721672642.1U CN208384877U (en) | 2017-12-05 | 2017-12-05 | Simulation device for low resistance and flashover fault of medium-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721672642.1U CN208384877U (en) | 2017-12-05 | 2017-12-05 | Simulation device for low resistance and flashover fault of medium-voltage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208384877U true CN208384877U (en) | 2019-01-15 |
Family
ID=64978087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721672642.1U Active CN208384877U (en) | 2017-12-05 | 2017-12-05 | Simulation device for low resistance and flashover fault of medium-voltage cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208384877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108133648A (en) * | 2017-12-05 | 2018-06-08 | 广东电网有限责任公司东莞供电局 | Simulation device for low resistance and flashover fault of medium-voltage cable |
-
2017
- 2017-12-05 CN CN201721672642.1U patent/CN208384877U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108133648A (en) * | 2017-12-05 | 2018-06-08 | 广东电网有限责任公司东莞供电局 | Simulation device for low resistance and flashover fault of medium-voltage cable |
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