CN206946961U - A kind of PT cables for transformer high-pressure side - Google Patents
A kind of PT cables for transformer high-pressure side Download PDFInfo
- Publication number
- CN206946961U CN206946961U CN201720681864.3U CN201720681864U CN206946961U CN 206946961 U CN206946961 U CN 206946961U CN 201720681864 U CN201720681864 U CN 201720681864U CN 206946961 U CN206946961 U CN 206946961U
- Authority
- CN
- China
- Prior art keywords
- cable
- installation
- pressure side
- main
- cable main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Cable Accessories (AREA)
Abstract
PT cables of the present utility model for transformer high-pressure side, being connected to cable main between PT transformers and electric equipment includes cable conductor, and internal shield, insulating barrier, external shielding layer are coated with successively from the inside to the outside outside cable conductor；Cable conductor uses multiply tinned copper wire, small without using copper shield and oversheath, bending radius, it is more flexible than common cross-linked polyethylene insulated cable, it is easy for installation in small space, no bending stress, it also simplify cable manufacturing process, also the step of stripping oversheath and copper shield are eliminated during installation, install simple and direct, do not interfere with cable installation accuracy, unstressed presence between cable and connection sleeve pipe after installation, insulating element good insulation preformance, service life length；Insulating layer material is EPR EP rubbers materials, has good insulating properties, hardness is low, elasticity is good, and cable main length is very short, typically in the range of 400mm 2000mm so that transformer is easy for installation.
Description
Technical field
It the utility model is related to a kind of PT cables for transformer high-pressure side.
Background technology
PT transformers high-pressure side in the electric equipments such as traditional Medium Voltage Switchgear, ring main unit is exhausted using common crosslinked polyethylene
Edge cable connection, and space is smaller in PT cabinets, common cross-linked polyethylene insulated cable bending radius is big, in small space installation not
It is convenient；The insulating barrier stripping comparison of common cross-linked polyethylene insulated cable is coarse, and error in length is larger, cable and adapter sleeve
Pipe installation accuracy is bad, causes larger stress between cable and connection sleeve pipe be present, influences cable and be connected boundary with connection sleeve pipe
Insulating properties between face, the aging speed of insulating element is accelerated, reduces service life of equipment.
The content of the invention
It is small that technical problem to be solved in the utility model is to provide a kind of bending radius, is readily bent wiring, no bending
Stress, easy for installation in small space, the PT cables for transformer high-pressure side of service life length.
PT cables of the present utility model for transformer high-pressure side, including be connected between PT transformers and electric equipment
Cable main, it is characterised in that：PT joints are connected with PT transformers, cable connector is connected with electric equipment sleeve pipe,
Connected and turned on by cable main between PT joints and cable connector；Cable main and PT joint external shielding layers part
PT joints ground wire is connected with, cable main is connected with front connector ground wire, cable with cable connector junction external shielding layer
Outer external shielding layer is connected with cable grounding line in the middle part of main body；Cable main upper end is internally provided with cable connector junction should
Power is bored；Cable main includes cable conductor, and internal shield, insulating barrier, external screen are coated with successively from the inside to the outside outside cable conductor
Cover layer；
The cable conductor is formed by stranded copper wire is twisted, and copper wire has tin coating；
The insulating layer material is EPR EP rubbers, and internal shield, external shielding layer material are conductive material；
The cable main length is 400mm~2000mm.
PT cables of the present utility model for transformer high-pressure side, cable main without using copper shield and oversheath,
Bending radius is small, more flexible than common cross-linked polyethylene insulated cable, easy for installation in small space, no bending stress,
It also simplify cable manufacturing process, the step of also eliminating stripping oversheath and copper shield during installation, installation is simple and direct, carries
High cable installation accuracy, unstressed presence between cable and connection sleeve pipe, insulated part good insulation preformance, uses the longevity after installation
Life length；The conductor of cable main uses multiply tinned copper wire, more flexible compared with the stranded conductor of common cable；Insulating layer material is
EPR EP rubbers materials, there are good insulating properties, hardness is low, elasticity is good, and cable main length is very short, typically exists
In the range of 400mm-2000mm, install and connect applied to inside switch cabinet so that transformer is easy for installation；It can also be applied to open
The top extension connection between cabinet is closed, i.e., connects equipment casing with the front connector of 630A cables using EPR insulated cables, both ends.
Brief description of the drawings
Fig. 1 is the PT cable mounting structure schematic diagrams for transformer high-pressure side of the utility model embodiment；
Fig. 2 is the PT cross-section of cable structural representations for transformer high-pressure side of the utility model embodiment.
Embodiment
As illustrated, a kind of PT cables for transformer high-pressure side, including it is connected to PT transformers 16 and electric equipment
Cable main 13 between sleeve pipe 5, PT joints 14 are connected with PT transformers 16, cable company is connected with electric equipment sleeve pipe 5
Device 6 is connect, is connected and turned on by cable main 13 between PT joints 14 and cable connector 6, the electric power of electrical equipment can be realized
Conveying, simple in construction, connection is reliable；Cable main 13 is connected with PT joints ground wire with the junction external shielding layer of PT joints 14
15, cable main 13 is connected with front connector ground wire 11 with the junction external shielding layer of cable connector 6, and the middle part of cable main 13 is outer
Screen layer is connected with cable grounding line 12, is grounded by many places and provides ground protection, and power Transmission security performance is high, system fortune
Row is stable；The upper end of cable main 13 is internally provided with stress cone 10 with the junction of cable connector 6, by stress cone to cable master
Body upper end and the electric field evacuation of the external shielding layer incision position of cable connector 6 are handled, and are avoided shelf depreciation, are passed through cable connector 6
The cable incoming-outgoing wire insulated enclosure of electrical equipment is realized, shell is not charged directly to be touched, it is ensured that personnel and equipment safety, even
, cable power transmission and distribution dependable performance high using rear safety coefficient is connect, attended operation is convenient.
Cable main 13 includes cable conductor 1, is coated with internal shield 2, insulation outside cable conductor 1 successively from the inside to the outside
Layer 3, external shielding layer 4；For cable main without using copper shield and oversheath, bending radius is small, more crosslinked polyetylene insulated than common
Cable is more flexible, easy for installation in small space, no bending stress, also simplify cable manufacturing process, during installation
Also the step of eliminating stripping oversheath and copper shield, installation is simple and direct, improves cable installation accuracy, cable and company after installation
Unstressed presence between female connector pipe, insulating element good insulation preformance, service life length；Cable conductor is twisted structure by stranded copper wire
Into copper wire has tin coating, more flexible compared with the stranded conductor of common cable；Insulating layer material is EPR EP rubbers, inner shield
Layer, external shielding layer material are conductive material, and insulating layer material is EPR EP rubbers materials, has good insulating properties, hardness
It is low, elastic good；Cable main length is very short, typically in the range of 400mm-2000mm, installs and connects applied to inside switch cabinet,
So that transformer is easy for installation；The top extension connection that can also be applied between switch cubicle, i.e., using EPR insulated cables, two
End 630A cables front connector connection equipment casing, can be applied in the equipment such as Medium Voltage Switchgear, ring main unit, connection PT cabinets
High-pressure side.
PT cables of the present utility model for transformer high-pressure side, cable main without using copper shield and oversheath,
Bending radius is small, more flexible than common cross-linked polyethylene insulated cable, easy for installation in small space, no bending stress,
It also simplify cable manufacturing process, the step of also eliminating stripping oversheath and copper shield during installation, installation is simple and direct, carries
High cable installation accuracy, unstressed presence between cable and connection sleeve pipe, insulating element good insulation preformance, uses the longevity after installation
Life length；The cable conductor of cable main uses multiply tinned copper wire, more flexible compared with the stranded conductor of common cable；Insulating barrier material
Expect for EPR EP rubbers materials, there is good insulating properties, hardness is low, elasticity is good, and cable main length is very short, typically
In the range of 400mm-2000mm, install and connect applied to inside switch cabinet so that transformer is easy for installation；It can also be applied to
Top extension connection between switch cubicle, i.e., connect equipment casing using EPR insulated cables, both ends with the front connector of 630A cables.
Claims (4)
1. a kind of PT cables for transformer high-pressure side, including the cable main being connected between PT transformers and electric equipment
（13）, it is characterised in that：PT transformers（16）On be connected with PT joints（14）, electric equipment sleeve pipe（5）On be connected with cable company
Connect device（6）, PT joints（14）With cable connector（6）Between pass through cable main（13）Connection conducting；Cable main（13）With
PT joints（14）Junction is externally connected to PT joints ground wire（15）, cable main（13）With cable connector（6）Junction
It is externally connected to front connector ground wire（11）, cable main（13）Middle part is externally connected to cable grounding line（12）；Cable main
（13）Upper end and cable connector（6）Junction is internally provided with stress cone（10）；Cable main（13）Including cable conductor
（1）, cable conductor（1）Outside is coated with internal shield successively from the inside to the outside（2）, insulating barrier（3）, external shielding layer（4）.
2. the PT cables according to claim 1 for transformer high-pressure side, it is characterised in that：The cable conductor（1）
Formed by stranded copper wire is twisted, copper wire has tin coating.
3. the PT cables according to claim 1 for transformer high-pressure side, it is characterised in that：The insulating barrier（3）Material
Expect for EPR EP rubbers, internal shield（2）, external shielding layer（4）Material is conductive material.
4. the PT cables according to claim 1 for transformer high-pressure side, it is characterised in that：The cable main（13）
Length is 400mm~2000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720681864.3U CN206946961U (en) | 2017-06-13 | 2017-06-13 | A kind of PT cables for transformer high-pressure side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720681864.3U CN206946961U (en) | 2017-06-13 | 2017-06-13 | A kind of PT cables for transformer high-pressure side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206946961U true CN206946961U (en) | 2018-01-30 |
Family
ID=61364085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720681864.3U Expired - Fee Related CN206946961U (en) | 2017-06-13 | 2017-06-13 | A kind of PT cables for transformer high-pressure side |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206946961U (en) |
-
2017
- 2017-06-13 CN CN201720681864.3U patent/CN206946961U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107534248B (en) | Adapter for electrical connection of cable bushings | |
| CN107078495B (en) | Cable termination with integrated monitoring device | |
| US7450363B2 (en) | Combination electrical connector | |
| EP2806277A1 (en) | Closure | |
| CA2831768C (en) | Modular high voltage sensing unit | |
| CN105023644A (en) | Novel tubular bus system | |
| RU2484564C1 (en) | Device for connection between connective parts of electric power equipment | |
| CN106469594B (en) | Bushing shell for transformer | |
| JP5615406B2 (en) | Connector circuit and surge protection device | |
| CN206946961U (en) | A kind of PT cables for transformer high-pressure side | |
| CN211456460U (en) | Connecting structure for large-current gas-filled cabinet | |
| US20130062115A1 (en) | Outdoor control cable | |
| US8581115B2 (en) | Grounding bar/hatchplate for use with lightning arrestors | |
| CN103050892A (en) | Uninterruptible-operated bypass connection device applied between European ring main unit and American type ring main unit | |
| CN105304399A (en) | An integrated small high-voltage vacuum circuit breaker | |
| CN201051645Y (en) | 630A American direct connector | |
| CN215343266U (en) | Special plug for contact cabinet | |
| CN114258617B (en) | Base element for an at least two-part overvoltage protection device and corresponding overvoltage protection device | |
| CN207937556U (en) | A kind of high-tension cable experimental rig and cable handling system | |
| CN205303302U (en) | An integrated small high-voltage vacuum circuit breaker | |
| KR20140115509A (en) | Premolded joint for DC cable | |
| CN217562930U (en) | Cable sheath protector, device and equipment | |
| CN206878229U (en) | A kind of connecting device for flexible cable | |
| CN110492426A (en) | A kind of high protective cable distribution box | |
| CN203707725U (en) | Flexible cable connecting device for PT cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180130 Termination date: 20210613 |