CN206947549U - A kind of cable clamping apparatus and the Wind turbines including the device - Google Patents
A kind of cable clamping apparatus and the Wind turbines including the device Download PDFInfo
- Publication number
- CN206947549U CN206947549U CN201720678044.9U CN201720678044U CN206947549U CN 206947549 U CN206947549 U CN 206947549U CN 201720678044 U CN201720678044 U CN 201720678044U CN 206947549 U CN206947549 U CN 206947549U
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- CN
- China
- Prior art keywords
- cable
- clamping
- wind turbines
- clamping apparatus
- equipotential link
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Wind Motors (AREA)
Abstract
The utility model discloses a kind of cable clamping apparatus, including the two clamping units connected by metal guide rod, the clamping unit is included with the endless metal folder and the fastener for opening to be tightened for not closing opening, the endless metal folder is connected with metal guide rod, and the inwall of endless metal folder is provided with several prickers towards center, the pricker is realized in the presence of fastener and cable sheath is punctured.The invention also discloses a kind of Wind turbines including the device, and several described cable clamping apparatus are arranged at the equipotential link point inside wind turbine cabin and tower, for forming multiple spot equipotential link.The utility model realizes the equipotential link for the cable being respectively engaged with two clamping units by being provided with the clamping unit of pricker, smart structural design, and use is easy to operate.The equipotential link of whole Wind turbines is realized by the cable clamping apparatus, reduces or eliminates because voltage difference and common mode disturbances caused by resistance difference.
Description
Technical field
The utility model is related to Wind turbines equipotential link technical field, more particularly to a kind of cable clamping apparatus and
Wind turbines including the device.
Background technology
At present, in the design of wind power generating set, the design of earthed system is more and more important, its validity and reliability meeting
Considerable influence is produced to the reliability of the electrical system of wind power generating set.The earthed system of current Wind turbines is mostly using remittance
The earthing mode that copper bar and downlead combine is flowed to realize.
But under this earthing mode, due to the distance of earth point and confluence copper bar not etc. so as to cause different earth points and
Grounding resistance between confluence copper bar has difference, while has certain pressure difference between downlead and Wind turbines tower.Especially
It is during working as inductive load startup stage big in Wind turbines and Wind turbines by thunderbolt, due to the electricity between earth point
Resistance difference can cause voltage counterattack or common mode disturbances.
As can be seen here, above-mentioned existing Wind turbines earthed system is upper with using in structure, method, it is clear that has still suffered from not
Just with defect, and urgently it is further improved.How a kind of new cable clamping apparatus and wind including the device are founded
Group of motors, make its reduce or eliminate equipotential link in caused by resistance difference voltage difference and common mode disturbances.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of cable clamping apparatus simple in construction, easy to use,
Achieve the equipotential link between two cables.
In order to solve the above technical problems, the utility model provides a kind of cable clamping apparatus, including connected by metal guide rod
Two clamping units, the clamping unit include with do not close opening endless metal folder and for by it is described opening tighten
Fastener, endless metal folder is connected with the metal guide rod, and the inwall that the endless metal presss from both sides is provided with several
Towards the pricker at center, the pricker is realized in the presence of the fastener and cable sheath is punctured.
As a kind of improvement of the present utility model, the both ends of the endless metal folder opening are respectively arranged with adpting flange,
The fastener realizes the deflation to the opening by the adpting flange.
Further improve, the fastener is fastening bolt.
Further improve, the endless metal folder outside is provided with insulating sheath.
The utility model also provides a kind of Wind turbines for including above-mentioned cable clamping apparatus, several described described electricity
Cable clamping apparatus is arranged at the equipotential link point inside the wind turbine cabin and tower,
Wherein, for the cable clamping apparatus being arranged on inside the wind turbine cabin, one clamping unit
The earth cable drawn for clamping by electric component in the Wind turbines and mechanical part, its another clamping unit are used for
The equipotential link cable that clamping is connected with the mainframe of the Wind turbines, in the presence of the clamping unit fastener,
It is grounded cable and equipotential link cable and the equipotential link of mainframe；
For the cable clamping apparatus being arranged on inside the Wind turbines tower, one clamping unit is used to block
The downlead drawn by the mainframe is connect, its another clamping unit is used for what clamping was connected with the tower of the Wind turbines
Equipotential link cable, in the presence of the clamping unit fastener, realize downlead and equipotential link cable and tower
The equipotential link of cylinder；
The downlead bottom is connected with grounded screen.
After such design, the utility model at least has advantages below：
1st, the utility model cable clamping apparatus does not close the endless metal folder of opening by setting, and in the metal clip
Inwall be provided with several prickers towards center, cause the pricker to be realized in the presence of fastener to cable sheath
Puncture, and the cable in two clamping units is respectively engaged with by connection of the metal guide rod to two metal clips, realization
Equipotential link, smart structural design, use are easy to operate.
2nd, the utility model Wind turbines inside its cabin and tower by setting the cable clamping apparatus, and passes through this
Cable clamping apparatus realizes the equipotential link of electric component and mechanical part in cabin, between downlead and tower etc. electricity
Position connection, forms class M type equipotential link systems.On the one hand machine can be reduced or eliminated in the Wind turbines equipotential link system
The resistance that cabin part etc. is located by connecting is poor, reduces or eliminates in equipotential link because voltage difference caused by resistance difference, disappears simultaneously
Except tower and downlead are because common mode disturbances caused by resistance difference, eliminating equipotential link influences wind power generating set stabilization
The hidden danger of operation.
Brief description of the drawings
Above-mentioned is only the general introduction of technical solutions of the utility model, in order to better understand technology hand of the present utility model
Section, below in conjunction with accompanying drawing, the utility model is described in further detail with embodiment.
Fig. 1 is the dimensional structure diagram of the utility model cable clamping apparatus clamping cable.
Fig. 2 is the front view of the utility model cable clamping apparatus clamping cable.
Fig. 3 be in Fig. 2 C-C to structure sectional view.
Fig. 4 is Fig. 2 longitudinal sectional view.
Fig. 5 is the structural representation of the utility model Wind turbines earthed system.
Fig. 6 is the use state diagram of cable clamping apparatus in the utility model Wind turbines earthed system.
Embodiment
Referring to the drawings shown in 1-4, the present embodiment cable clamping apparatus, including the two clamping lists connected by metal guide rod 4
Member, the clamping unit are included with the endless metal folder 6 and the fastener 5 for the opening to be tightened for not closing opening.The ring
Shape metal clip 6 is connected with the metal guide rod 4, and the inwall of endless metal folder 6 is provided with several prickers 7 towards center.
So when equal clamping cable in two clamping units, while fastener 5 locks opening, the pricker 7 punctures cable 1
Crust 2, so as to realize the reliable contacts of metal clip and cable conductor, then the connection by metal guide rod, realize two cables
Equipotential link.
Preferred embodiment is that the both ends of the opening of endless metal folder 6 are respectively arranged with adpting flange, and the fastener 5 passes through
The adpting flange realizes the deflation to the opening.The fastener is fastening bolt, not only acts as the effect for puncturing cable sheath,
Have the function that anti-cable loosens simultaneously.The clamping unit is adaptable to the cable of different line footpaths in the present embodiment.
In order to prevent the electric leakage of the cable clamping apparatus, the outside of endless metal folder 6 is provided with insulating sheath 3, to pacify
The safety of operating personnel is protected when filling cable.
When the present embodiment cable clamping apparatus is used for Wind turbines, the equipotential inside the wind turbine cabin and tower
Several cable clamping apparatus are set at tie point, to form multiple spot equipotential link system.
Wherein, it is used for for the cable clamping apparatus being arranged on inside the wind turbine cabin, one clamping unit
The earth cable that clamping is drawn by electric component in the Wind turbines and mechanical part, its another clamping unit be used for clamping with
The equipotential link cable of the mainframe connection of the Wind turbines, in the presence of the clamping unit fastener, is grounded electricity
Cable and equipotential link cable and the equipotential link of mainframe.
For the cable clamping apparatus being arranged on inside the Wind turbines tower, one clamping unit be used for clamping by
The downlead that the mainframe is drawn, its another clamping unit are used for the equipotential that clamping is connected with the tower of the Wind turbines and connected
Wiring cable, in the presence of the clamping unit fastener, realize downlead and equipotential link cable and the equipotential of tower
Connection.
The downlead bottom is connected with grounded screen, then forms Wind turbines multiple spot equipotential link system, realizes whole
The equipotential link of wind power generating set.
The utility model overcomes the position difference of each electric component and mechanical part in Wind turbines, using structure letter
Single cable clamping apparatus realizes that each electric component and mechanical part are connected with mainframe recently, eliminates because resistance difference is made
Into common mode disturbances.Referring to the drawings shown in 5 and 6, its specific Equipotential connection method is as follows：
1) first determine Wind turbines mainframe on institute it is in need progress equipotential link electric component and Machinery Ministry
The quantity of part and position；
2) line footpath and length of Wind turbines mainframe equipotential downlead are determined, while determines the tower of Wind turbines tower
Hop count；
3) according to the position of the electric component and mechanical part, the position of its each self-corresponding electrical grounding point is determined,
And it is determined that need to ensure the length and line footpath of every equipotential link cable during equipotential link point, it is determined that equipotential connect
Place and Wind turbines tower section junction, install the cable clamping apparatus.
4) earth cable that the electric component and mechanical part are drawn is connected to the one of corresponding cable clamping apparatus
In individual clamping unit and lock, and clamping one is not less than 50mm in another clamping unit of the cable clamping apparatus2's
Equipotential link cable, the other end of the equipotential connection cables are connected with Wind turbines mainframe；And
The downlead that the mainframe is drawn is connected in a clamping unit of corresponding cable clamping apparatus and locked
Tightly, clamping one is not less than 50mm- and in another clamping unit of the cable insulation displacement connector2Equipotential link cable, should
The other end of equipotential link cable is connected with tower adpting flange.
5) bottom of the downlead is connected with grounded screen, after the completion of connection, measures the electricity between tower section and downlead
Resistance, resistance value should be less than 50 milliohms.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is made any formal
Limitation, those skilled in the art make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above,
Fall in the scope of protection of the utility model.
Claims (5)
1. a kind of cable clamping apparatus, it is characterised in that including the two clamping units connected by metal guide rod, the clamping list
Member is included with the endless metal folder and the fastener for the opening to be tightened for not closing opening, endless metal folder with
The metal guide rod connection, and the inwall of endless metal folder is provided with several prickers towards center, the pricker exists
Realized in the presence of the fastener and cable sheath is punctured.
2. cable clamping apparatus according to claim 1, it is characterised in that the both ends difference of the endless metal folder opening
Adpting flange is provided with, the fastener realizes the deflation to the opening by the adpting flange.
3. cable clamping apparatus according to claim 1, it is characterised in that the fastener is fastening bolt.
4. according to the cable clamping apparatus described in claim any one of 1-3, it is characterised in that the endless metal folder outside is set
It is equipped with insulating sheath.
A kind of 5. Wind turbines of the cable clamping apparatus including described in claim any one of 1-4, it is characterised in that several
The cable clamping apparatus is arranged at the equipotential link point inside the wind turbine cabin and tower,
Wherein, it is used for for the cable clamping apparatus being arranged on inside the wind turbine cabin, one clamping unit
The earth cable that clamping is drawn by electric component in the Wind turbines and mechanical part, its another clamping unit are used for clamping
The equipotential link cable being connected with the mainframe of the Wind turbines, in the presence of the clamping unit fastener, realize
Earth cable and equipotential link cable and the equipotential link of mainframe；
For the cable clamping apparatus being arranged on inside the Wind turbines tower, one clamping unit be used for clamping by
The downlead that the mainframe is drawn, its another clamping unit wait electricity for what clamping was connected with the tower of the Wind turbines
Position connection cables, in the presence of the clamping unit fastener, realize downlead and equipotential link cable and tower
Equipotential link；
The downlead bottom is connected with grounded screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720678044.9U CN206947549U (en) | 2017-06-12 | 2017-06-12 | A kind of cable clamping apparatus and the Wind turbines including the device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720678044.9U CN206947549U (en) | 2017-06-12 | 2017-06-12 | A kind of cable clamping apparatus and the Wind turbines including the device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206947549U true CN206947549U (en) | 2018-01-30 |
Family
ID=61364043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720678044.9U Active CN206947549U (en) | 2017-06-12 | 2017-06-12 | A kind of cable clamping apparatus and the Wind turbines including the device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206947549U (en) |
-
2017
- 2017-06-12 CN CN201720678044.9U patent/CN206947549U/en active Active
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