CN105761888A - Electric power high-voltage instrument transformer - Google Patents
Electric power high-voltage instrument transformer Download PDFInfo
- Publication number
- CN105761888A CN105761888A CN201610093583.6A CN201610093583A CN105761888A CN 105761888 A CN105761888 A CN 105761888A CN 201610093583 A CN201610093583 A CN 201610093583A CN 105761888 A CN105761888 A CN 105761888A
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- CN
- China
- Prior art keywords
- paw
- radially
- pressing
- ring
- groove
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/24—Voltage transformers
- H01F38/26—Constructions
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/02—Devices for adjusting or maintaining mechanical tension, e.g. take-up device
Abstract
The invention discloses an electric power high-voltage instrument transformer which comprises a pressing ring, a core tube, pressing claw assemblies and a voltage instrument transformer.The pressing ring is rotatably arranged on the outer circumferential wall of the core tube and comprises a ratchet ring of which the inner circumferential wall is provided with multiple slope grooves; multiple wedge-shaped anti-disengagement teeth are arranged in the slope grooves of the ratchet ring; the tube wall of the core tube is provided with multiple radial guide holes; each pressing claw assembly comprises multiple pressing claws and reset springs for supplying reset elasticity to the pressing claws; each pressing claw comprises a pressing plate portion and a radial sliding column; the outer side ends of the radial sliding columns are provided with wedge-shaped teeth; the pressing plate portions of the pressing claws are located in a tube cavity of the core tube, the radial sliding column of each pressing claw penetrates through the corresponding radial guide hole formed in the tube wall of the core tube, and the pressing plate portions of the pressing claws are closed in a clamping mode to form a wire clamping hole; the voltage instrument transformer comprises an annular base body which is arranged to be concentric with the wire clamping hole; under the elasticity action of the reset springs, the wedge-shaped teeth on each radial sliding column are connected to the wedge-shaped anti-disengagement teeth arranged in the corresponding slope groove in an abutting mode.The electric power high-voltage instrument transformer is high in wire clamping strength.
Description
Technical field
The invention belongs to high-tension electricity technical field, be specifically related to a kind of power high voltage transformer.
Background technology
High-voltage mutual inductor apply to big voltage is converted to small voltage by 1kv to 220kv power system or convert big electric current to small area analysis so that measure, protection, the transformer that uses.
Mostly existing high-voltage mutual inductor is induction transformer, and operation principle is identical with transformator, and basic structure is also iron core and former and deputy winding.The Main Function of high-voltage mutual inductor is as follows: high voltage is converted to low-voltage, and big electric current converts small area analysis to, hereafter again for measuring, control, protecting.So not only can strengthen measurement instrument from journey, it is simple to instrument standard, reduce control, the voltage and current of protection equipment, and make instrument separate with equipment or high-tension circuit, it is ensured that the safety of instrument, equipment and staff.
Mostly the mounting means of existing high-voltage mutual inductor is to adopt flange install fixing or adopt bonding mode to fix, and its installation site is it is generally required to reserve, so that the application of high-voltage mutual inductor is subject to more restriction.
Summary of the invention
It is an object of the invention to provide the power high voltage transformer that a kind of clamp intensity is better, have better firmness.
The technical scheme realizing the object of the invention is: a kind of power high voltage transformer, including pressure ring, core pipe, paw assembly and voltage transformer；Pressure ring rotates and is arranged on core pipe periphery wall；Pressure ring includes internal perisporium and is provided with the spine ring of multiple slopes groove；Each slope groove of spine ring is provided with multiple wedge shape anticreep tooth；Core tube wall is provided with multiple radially-directed hole；Paw assembly includes multiple paw and provides the back-moving spring of reseting elasticity for paw；Each paw includes pressing plate portion and the radial direction traveller being arranged on pressing plate portion outer wall；The outboard end of each radially traveller is provided with the chisel teeth adaptive with the wedge shape anticreep tooth in the groove of spine ring slope；The pressing plate portion of each paw is arranged in core pipe tube chamber, and the radial direction traveller of each paw is through the corresponding radially-directed hole on core tube wall, and the pressing plate portion clamping of each paw forms a clamp hole；Voltage transformer includes and annular matrix and intelligent control module；One clamping connection ring is provided with installation gap at a side of adjacent spine ring, and annular matrix is inlaid in this installation gap；Radially-directed hole is arranged on the tube wall between annular gear platform and annular groove；Each radially-directed hole extends radially through core tube wall along core pipe；Accommodating hole and guiding slide opening set gradually along direction from outside to inside, and accommodating hole and guiding slide opening are all circular holes, and the aperture of accommodating hole is more than the aperture of guiding slide opening, and the cross sectional shape in each radially-directed hole is T-shaped；Under the elastic force effect of back-moving spring, on the wedge shape anticreep tooth in a corresponding slope groove of the chisel teeth apical grafting on each radially traveller.
Due to the fact that there is thread clamping mechanism, therefore be easily installed location；Additionally each paw is positioned by the present invention by having the slope groove of wedge shape anticreep tooth, the technique effect preventing from falling back can be played, compare with by traditional bolt assembly clamping electric power cable, particularly excellent in anti-loosening effect, it is effectively ensured the reliability of long-term work.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the first structure of the present invention；
Fig. 2 is that shown in Fig. 1, the one of high-voltage mutual inductor partly cuts open structural representation；
Fig. 3 is the A-A sectional view of Fig. 2；
Fig. 4 is a kind of explosive view of high-voltage mutual inductor shown in Fig. 1；
The one that Fig. 5 is the second structure of the present invention partly cuts open structural representation.
Detailed description of the invention
(embodiment 1)
The present embodiment is a kind of power high voltage transformer, sees shown in Fig. 1 to Fig. 4, including 1, core pipe of a pressure ring, 3, axial back-up ring 4 of 2, four paw assemblies and voltage transformer 8.
Pressure ring 1 includes spine ring 11, separation two clamping connection rings 12 of spine ring both sides and multiple connecting rivet 13, two clamping connection ring clamping spine rings, connecting rivet axially penetrates through described spine ring and two clamping connection rings along core pipe, thus spine ring and two clamping connection rings are fixedly connected into an entirety.The internal perisporium of spine ring is provided with multiple slopes groove 111, is provided with multiple wedge shape anticreep tooth 112 in the groove of each slope；In the present embodiment, the internal perisporium of spine ring and the internal perisporium of clamping connection ring are coplanar, and the periphery wall of spine ring and the periphery wall of clamping connection ring are coplanar；The periphery wall of pressure ring is provided with multiple binding groove 14 axially penetrating through whole pressure ring along core pipe, and the operation of twisting of pressure ring adopts hook type spanner (being commonly called as hook spanner).In concrete practice, the internal diameter of clamping connection ring also can be slightly smaller than the internal perisporium of spine ring.Slope groove in the present embodiment refers to the groove that depth of groove is incremented by gradually to another side from a side.
The periphery wall of core pipe 2 is provided with the annular gear platform 21 of evagination and the annular groove 22 of indent, and core pipe is provided with multiple radially-directed hole 23 on the tube wall kept off in annular between platform and annular groove；In the present embodiment, each radially-directed hole extends radially through core tube wall along core pipe, each radially-directed hole includes accommodating hole 231 and the guiding slide opening 232 of connection, accommodating hole and guiding slide opening set gradually along direction from outside to inside, accommodating hole and guiding slide opening are all circular holes, the aperture of accommodating hole is more than the aperture of guiding slide opening, and the cross sectional shape in each radially-directed hole is T-shaped.Axial back-up ring is arranged in the annular groove of core pipe.Pressure ring rotates and is arranged on core pipe periphery wall, and the two side ends of pressure ring keeps off platform respectively with annular and axially back-up ring slip is adjacent.
Paw assembly 3 includes multiple paw 31, provides the back-moving spring 32 of reseting elasticity and the mat 33 being fixedly installed on each paw for paw；Each paw includes pressing plate portion 311, be arranged on pressing plate portion outer wall radial direction traveller 312, the annular slot 313 being arranged on radially traveller periphery wall；Guiding slide opening in each radially traveller and radially-directed hole is adaptive, each radially traveller under the position-limiting action of guiding slide opening along core caliber to reciprocatingly sliding；The outboard end of each radially traveller is provided with chisel teeth 34；Wedge shape anticreep tooth in each chisel teeth and spine ring slope groove is adaptive.Each mat is fixed in the annular slot of a corresponding radial direction traveller, each back-moving spring is set on a corresponding radial direction traveller, each back-moving spring is connected in a corresponding annular mat along core caliber outer end upwards, and back-moving spring is connected on the diapire of accommodating hole along core caliber the inner upwards；
The pressing plate portion of each paw is arranged in core pipe tube chamber, the radial direction traveller of each paw is through the corresponding radially-directed hole on core tube wall, under the elastic force effect of back-moving spring, on the wedge shape anticreep tooth in a corresponding slope groove of spine ring of the chisel teeth apical grafting on each radially traveller.Under the position-limiting action of slope groove and chisel teeth, the pressure ring in the present embodiment is twisted only along a direction, has anti-retrogression namely anti-loosening technique effect.
The inwall in each paw pressing plate portion is provided with arcuate groove 314, and in the present embodiment, the arcuate groove clamping in each paw pressing plate portion forms a clamp hole 5 for clamping electric power cable.
The present embodiment, in order to connect electricity from insulating power cable, is also provided with multiple puncture 6 in each arcuate groove；Specifically, respectively puncture along core pipe radially protruding.The existence punctured, it is possible to without insulating power cable is carried out peeling process, can effectively connect electricity.In concrete practice, if what to clamp is bare wire, then can be not provided with puncturing.
In the present embodiment, each paw is the integral piece made by casting forming, and each puncture is made when casting forming；In concrete practice, puncture may be used without alternate manner and makes；In each arcuate groove, such as it is provided with multiple installation draw-in groove, then installs in draw-in groove being inlaid in corresponding one by the die-cut puncture sheet made；Puncturing sheet include installation portion and sting blade, installation portion is inlaid in installation draw-in groove, and thorn blade then exposes installation draw-in groove and forms puncture.The benefit of this structure is to puncture sheet the material different with paw can be adopted to make, and especially selects and treats that same material used by clamp cable is made, being conducive to obtaining preferably electric property.
Voltage transformer includes annular matrix 81 and intelligent control module 82；Annular matrix is fixedly installed on a clamping connection ring；In the present embodiment, a clamping connection ring is provided with installation gap 121 at a side of adjacent spine ring, and annular matrix is inlaid in this installation gap；It addition, the periphery wall of core pipe is provided with resettlement groove 25, intelligent control module is arranged in resettlement groove；Intelligent control module can include wireless transmit/receive units, and secondary voltage or current signal that intelligent control module is sensed annular matrix by wireless transmit/receive units send distance host to, to realize the long-range no worker monitor of precision；This structure can make full use of space, is conducive to the small-sized and integrated of entirety.This structure makes the present embodiment can use as a high-voltage mutual inductor.
The present embodiment is when operation, hook type spanner is adopted to twist pressure ring, pressure ring is made to drive the wedge shape anticreep tooth in its slope groove to rotate, owing to each back-moving spring stress can deform shortening, make the chisel teeth of each pressing plate radially traveller towards the shallower side shifting of groove depth in the groove of slope, and then make the pressing plate portion of each paw along the radially-inwardly sliding of core pipe, thus clamping is arranged in the electric power cable in clamp hole.
The present embodiment is by being arranged on cable clamping at the longitudinal center line place of high-voltage mutual inductor, and its gravity centre distribution is relatively reasonable, when on the overhead power line of high-altitude, is conducive to alleviating vibration；Additionally, each paw is positioned by the present embodiment by having the slope groove of wedge shape anticreep tooth, it is possible to play the technique effect preventing from falling back, and compares with by traditional bolt assembly clamping electric power cable, in anti-loosening effect particularly excellent, be effectively ensured the reliability of long-term work.
(embodiment 2)
The present embodiment and embodiment 1 are essentially identical, it is different in that: as shown in Figure 5, the present embodiment is no longer arranged on the annular matrix of voltage transformer in clamping connection ring, in the present embodiment, the annular matrix of voltage transformer is fixedly installed on core pipe periphery wall, this scheme is also feasible, and structure is compacter and easily fabricated processing；As long as allowing in a word by folder electric power cable traverse annular matrix.
Obviously, the above embodiment of the present invention is only for clearly demonstrating example of the present invention, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And the apparent change that these connotations belonging to the present invention are extended out or variation still fall within protection scope of the present invention.
Claims (1)
1. a power high voltage transformer, it is characterised in that: include pressure ring, core pipe, paw assembly and voltage transformer；Pressure ring rotates and is arranged on core pipe periphery wall；Pressure ring includes internal perisporium and is provided with the spine ring of multiple slopes groove；Each slope groove of spine ring is provided with multiple wedge shape anticreep tooth；Core tube wall is provided with multiple radially-directed hole；Paw assembly includes multiple paw and provides the back-moving spring of reseting elasticity for paw；Each paw includes pressing plate portion and the radial direction traveller being arranged on pressing plate portion outer wall；The outboard end of each radially traveller is provided with the chisel teeth adaptive with the wedge shape anticreep tooth in the groove of spine ring slope；The pressing plate portion of each paw is arranged in core pipe tube chamber, and the radial direction traveller of each paw is through the corresponding radially-directed hole on core tube wall, and the pressing plate portion clamping of each paw forms a clamp hole；Voltage transformer includes and annular matrix and intelligent control module；One clamping connection ring is provided with installation gap at a side of adjacent spine ring, and annular matrix is inlaid in this installation gap；Radially-directed hole is arranged on the tube wall between annular gear platform and annular groove；Each radially-directed hole extends radially through core tube wall along core pipe；Accommodating hole and guiding slide opening set gradually along direction from outside to inside, and accommodating hole and guiding slide opening are all circular holes, and the aperture of accommodating hole is more than the aperture of guiding slide opening, and the cross sectional shape in each radially-directed hole is T-shaped；Under the elastic force effect of back-moving spring, on the wedge shape anticreep tooth in a corresponding slope groove of the chisel teeth apical grafting on each radially traveller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610093583.6A CN105761888A (en) | 2016-01-15 | 2016-01-15 | Electric power high-voltage instrument transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610093583.6A CN105761888A (en) | 2016-01-15 | 2016-01-15 | Electric power high-voltage instrument transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105761888A true CN105761888A (en) | 2016-07-13 |
Family
ID=56330215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610093583.6A Pending CN105761888A (en) | 2016-01-15 | 2016-01-15 | Electric power high-voltage instrument transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105761888A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2009650A1 (en) * | 2006-04-20 | 2008-12-31 | Panasonic Corporation | High-voltage transformer |
| CN202387980U (en) * | 2011-10-31 | 2012-08-22 | 苏州市东立机械有限公司 | Novel three-jaw chuck |
| CN202690690U (en) * | 2012-07-24 | 2013-01-23 | 贵州航天精工制造有限公司 | Looseness preventing bolt combined piece |
| CN204884841U (en) * | 2015-08-17 | 2015-12-16 | 广东腾达电力科技有限公司 | Undercurrent route selection is high accuracy opening CT for device |
-
2016
- 2016-01-15 CN CN201610093583.6A patent/CN105761888A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2009650A1 (en) * | 2006-04-20 | 2008-12-31 | Panasonic Corporation | High-voltage transformer |
| CN202387980U (en) * | 2011-10-31 | 2012-08-22 | 苏州市东立机械有限公司 | Novel three-jaw chuck |
| CN202690690U (en) * | 2012-07-24 | 2013-01-23 | 贵州航天精工制造有限公司 | Looseness preventing bolt combined piece |
| CN204884841U (en) * | 2015-08-17 | 2015-12-16 | 广东腾达电力科技有限公司 | Undercurrent route selection is high accuracy opening CT for device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160713 |
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| RJ01 | Rejection of invention patent application after publication |