CN105826017A - Easily mounted high-voltage instrument transformer - Google Patents
Easily mounted high-voltage instrument transformer Download PDFInfo
- Publication number
- CN105826017A CN105826017A CN201610097647.XA CN201610097647A CN105826017A CN 105826017 A CN105826017 A CN 105826017A CN 201610097647 A CN201610097647 A CN 201610097647A CN 105826017 A CN105826017 A CN 105826017A
- Authority
- CN
- China
- Prior art keywords
- paw
- plane nut
- slip pipe
- plane
- pressing claw
- 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.)
- Withdrawn
Links
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
-
- 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
-
- 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
-
- 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
- H02G7/04—Arrangements or devices for relieving mechanical tension
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention discloses an easily mounted high-voltage instrument transformer. The high-voltage instrument transformer comprises a base body, a plane nut, two sets of pressing claw components and an instrument transformer; the base body is provided with a sliding tube and radial guide limit holes; each pressing claw is located in a corresponding radial guide limit hole; the plane nut sleeves the outer peripheral wall of the sliding tube of the base body; plane thread parts are arranged at two side ends of the plane nut, and each plane thread part is matched with an adjacent set of the pressing claw components; the plane nut simultaneously drives the pressing claws in the two sets of the pressing claw components to be close to the center of the sliding tube mutually or keep away from one another; each pressing claw is further provided with a pressing plate part and a guide sliding block part which is formed by extending in the radial direction of the sliding tube of the base body; a plurality of puncture parts are arranged on the inner wall of each pressing plate part, and each puncture part inwards bulges in the radial direction of the sliding tube of the base body; the puncture part of each pressing claw is molded by casting and formed integrally with the pressing claw. Fastening parts of the plane nut are multiple fastening grooves formed in the outer peripheral wall of the plane nut. The high-voltage instrument transformer disclosed by the invention is easy to mount and use.
Description
Technical field
The invention belongs to high-tension electricity technical field, be specifically related to a kind of easy-to-install high-voltage mutual inductor.
Background technology
High-voltage mutual inductor applies to that big voltage is converted in 1kv to 220kv power system small voltage or big electric current is converted into small area analysis so that the transformer measuring, protect, use.
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 into low-voltage, and big electric current is converted into small area analysis, the most again for measuring, control, protecting.The most not only can strengthen measuring instruments from journey, it is simple to instrument standard, reduce the voltage and current controlling, protecting 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 use flange install fixing or use 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 by more restriction.
Summary of the invention
It is an object of the invention to provide a kind of brand new, install that fastness is reliable and stable, effectively prevent the easy-to-install high-voltage mutual inductor that loosens.
The technical scheme realizing the object of the invention is: a kind of easy-to-install high-voltage mutual inductor, including matrix, plane nut, two casing pressure claw assemblies and a transformer；Matrix is provided with slip pipe and the radially-directed spacing hole being arranged on slip pipe；Each paw is positioned in a corresponding radially-directed spacing hole, and each paw is provided with driving threaded portion；Plane nut sleeve is located on the periphery wall of matrix slip pipe, the both sides of two casing pressure claw assembly separation plane nuts；The two side ends of plane nut is respectively provided with a flat thread portion, and each flat thread portion is adaptive with the driving threaded portion of each paw in adjacent a set of paw assembly；Plane nut drives two flat thread portion reciprocating rotations of its two side ends, so synchronize to drive each paw in two casing pressure claw assemblies close to each other towards slip pipe center or away from；Each paw is additionally provided with pressing plate portion and radially extends the guide runner portion of formation along matrix slip pipe；Each pressing plate portion inwall is provided with multiple puncture, and each puncture is radially inwardly projecting along matrix slip pipe；Each paw spike through cast molding and paw is made into integration；The fastening part of plane nut is provided in the multiple binding grooves on plane nut periphery wall.
The present invention has positive effect: the high-voltage mutual inductor of (1) present invention is owing to carrying press claw type retaining mechanism, it is not necessary to reserved installation position, it is easy to installing, and have preferable anti-loosening effect, firm intensity is relatively high and stable reliably.(2) present invention synchronizes to drive two casing pressure claw assembly clamping electric power cables by a plane nut, compare with by traditional bolt assembly clamping electric power cable, bigger pressure can be applied, and there is excellent anti-loosening effect, the reliability of long-term work is effectively ensured.(3) present invention is by being arranged on matrix slip pipe center cable clamping, and its gravity centre distribution is relatively reasonable, when on the overhead power line of high-altitude, is conducive to alleviating vibration.(4) present invention uses two casing pressure claw assemblies to be clamped on same cable, has the effect of dual fail-safe, in use goes wrong even if the most a set of, its service behaviour of the most another set of guarantee.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the first structure of the present invention；
Fig. 2 is a kind of front view of high-voltage mutual inductor shown in Fig. 1；
Fig. 3 is that shown in Fig. 1, the one of high-voltage mutual inductor partly cuts open structural representation；
Fig. 4 is a kind of explosive view of high-voltage mutual inductor shown in Fig. 1；
Fig. 5 is the explosive view that high-voltage mutual inductor shown in Fig. 1 decomposes further.
Detailed description of the invention
(embodiment 1)
The present embodiment is a kind of easy-to-install high-voltage mutual inductor, as shown in Fig. 1 to Fig. 5, including 1, plane nut 2, two casing pressure claw assembly 3 of matrix and a transformer 7；Each casing pressure claw assembly includes three paws 4；Matrix is provided with slip pipe 11 and the radially-directed spacing hole 12 being arranged on slip pipe；Radially-directed spacing hole extends radially through slip pipe tube wall along matrix slip pipe；Radially-directed spacing hole 12 be positioned at matrix slip pipe axially on edges at two ends at；
The quantity of radially-directed spacing hole 12 is identical with the quantity of paw 4, totally six, matrix slip pipe axially on two ends three radially-directed spacing holes are respectively set, these three radially-directed spacing holes for and corresponding a set of paw assembly 3 adaptive；Each paw is positioned in a corresponding radially-directed spacing hole 12, and each paw reciprocatingly slides along the radial direction of matrix slip pipe 11 under the guide and limit effect of radially-directed spacing hole；
Being shaped as of plane nut 2 is ring-type, and plane nut sleeve is located on the periphery wall of matrix slip pipe 11, and between two casing pressure claw assemblies 3；
Each paw is provided with pressing plate portion 41, the guide runner portion 43 radially extending formation along matrix slip pipe 11 and the driving threaded portion 44 being arranged in guide runner portion；Threaded portion 44 is driven to be arranged on a side of guide runner portion adjacent flat nut；The inwall in pressing plate portion is curved, forms an arcuate groove 45, and the arcuate groove of multiple paws encloses formation one clamp hole 5.External cable is positioned in this clamp hole 5.
The present embodiment, in order to connect electricity on insulating power cable, is also provided with multiple puncture 42 on pressing plate portion inwall, specifically, punctures and be arranged on the inwall of each arcuate groove, and each puncture is radially inwardly projecting along matrix slip pipe 11.The existence punctured, still can effectively connect electricity when insulating power cable not carrying out peeling and processing.In concrete practice, if to be clamped is bare wire, then can be not provided with puncturing.
In the present embodiment, each paw is the integral piece made by cast molding, and each puncture is made when cast molding；In concrete practice, puncture may be used without alternate manner and makes；On the inwall in pressing plate portion, such as it is provided with multiple installation draw-in groove, then installed in draw-in groove be 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 used to make, and especially selects and treats that same material used by clamp cable is made, being conducive to obtaining preferable electric property.
The internal perisporium of plane nut is the smooth inner wall adaptive with matrix slip pipe periphery wall, the periphery wall of plane nut is provided with fastening part 21, plane nut two side ends on axial along matrix slip pipe is each provided with a flat thread portion 22, each flat thread portion is provided with archimedean spiral groove, and adaptation then engages with the driving threaded portion of three paws in adjacent a set of paw assembly in each flat thread portion；The fastening part 21 of the present embodiment midplane nut is provided in the outer-hexagonal shape fastener head on plane nut periphery wall, and it is twisted operation and uses inner hexagon spanner, shfting wrench or fork spanner；In concrete practice, described fastening part just can use other shape, and for example with the multiple binding grooves being evenly distributed on plane nut periphery wall, it is twisted operation and uses hook type spanner (being commonly called as hook spanner).
In the present embodiment, each radially-directed spacing hole 12 includes rectangle slide opening 121 and anticreep slide opening 122, rectangle slide opening is arranged on the edge of matrix slip pipe, form a breach, anticreep slide opening connects with rectangle slide opening, anticreep slide opening is positioned at the inboard of rectangle slide opening, anticreep slide opening and the combination of rectangle slide opening and forms T-shaped hole；
Each paw guide runner portion 43 is provided with the guide part 431 being positioned in rectangle slide opening, be positioned in anticreep slide opening anti-delinking part 432 and be positioned at the limiting section 433 outside matrix slip pipe, the cross sectional shape that the guide part 431 of each paw, anti-delinking part 432 and limiting section 433 combination are formed is I-shaped；The guide part 431 of each paw and anti-delinking part 432, along each paw that extends radially through of matrix slip pipe, the inwall in the inwall of guide part 431 of each paw, the inwall of anti-delinking part 432 and pressing plate portion 41 are equipped with multiple puncture；Driving threaded portion to be arranged on the side end wall of anti-delinking part adjacent flat nut, the shape of anti-delinking part and anticreep slide opening are adaptive；Drive threaded portion to protrude to be arranged on the side end wall of anti-delinking part adjacent flat nut, so that drive threaded portion to cannot move in anticreep slide opening.
In the present embodiment, the direction of rotation in the flat thread portion of plane nut one side is forward, and the direction of rotation in the flat thread portion of another side is reverse, the direction that the direction of rotation driving screw thread on each paw is and the flat thread portion adjacent with this paw is adaptive.When this structure makes plane nut rotation, by the two of its two side ends flat thread portions, synchronize to drive two casing pressure claw assemblies to realize clamping or releases cable.
In the present embodiment, transformer 7 is annular voltage transformer；Plane nut periphery wall is provided with a detent, and this transformer is fixedly installed in detent, and plane nut fastening part is respectively provided with one on the periphery wall being positioned at these detent both sides and twists fastening part；This voltage transformer is for inducing relatively low secondary voltage from folded cable, for providing electric energy for other auxiliary equipment such as photographic head, temperature sensor, wireless transmit/receive units.
The present embodiment, when carrying out clamp operation, uses inner hexagon spanner, shfting wrench or fork spanner to twist plane nut；Plane nut is in reciprocating rotation, drive its flat thread portion reciprocating rotation, and then drive synchronization to drive two casing pressure claw assemblies by engaging the driving threaded portion of adaptation, owing to each paw radial direction only along matrix slip pipe under the guide and limit effect of radially-directed spacing hole 12 moves back and forth, so that the move mode of each paw be close to each other towards slip pipe center or away from, thus clamping or unclamp the electric power cable being positioned in clamp hole 5.
The present embodiment is by being arranged on cable clamping at the longitudinal center line 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；It addition, the present embodiment drives paw clamping electric power cable by flat thread portion, compare with by traditional bolt assembly clamping electric power cable, particularly excellent in anti-loosening effect, the reliability of long-term work is effectively ensured.
In the present embodiment, two casing pressure claw assemblies are clamped on same cable, have the effect of dual fail-safe, in use go wrong even if the most a set of, its service behaviour of the most another set of guarantee.
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 obvious 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. an easy-to-install high-voltage mutual inductor, it is characterised in that: include matrix, plane nut, two casing pressure claw assemblies and a transformer；Matrix is provided with slip pipe and the radially-directed spacing hole being arranged on slip pipe；Each paw is positioned in a corresponding radially-directed spacing hole, and each paw is provided with driving threaded portion；Plane nut sleeve is located on the periphery wall of matrix slip pipe, the both sides of two casing pressure claw assembly separation plane nuts；The two side ends of plane nut is respectively provided with a flat thread portion, and each flat thread portion is adaptive with the driving threaded portion of each paw in adjacent a set of paw assembly；Plane nut drives two flat thread portion reciprocating rotations of its two side ends, so synchronize to drive each paw in two casing pressure claw assemblies close to each other towards slip pipe center or away from；Each paw is additionally provided with pressing plate portion and radially extends the guide runner portion of formation along matrix slip pipe；Each pressing plate portion inwall is provided with multiple puncture, and each puncture is radially inwardly projecting along matrix slip pipe；Each paw spike through cast molding and paw is made into integration；The fastening part of plane nut is provided in the multiple binding grooves on plane nut periphery wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610097647.XA CN105826017A (en) | 2016-01-15 | 2016-01-15 | Easily mounted high-voltage instrument transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610097647.XA CN105826017A (en) | 2016-01-15 | 2016-01-15 | Easily mounted high-voltage instrument transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105826017A true CN105826017A (en) | 2016-08-03 |
Family
ID=56987372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610097647.XA Withdrawn CN105826017A (en) | 2016-01-15 | 2016-01-15 | Easily mounted high-voltage instrument transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105826017A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011208778A (en) * | 2010-03-30 | 2011-10-20 | Sanwa Tekki Corp | Piping fixing device |
| CN202917711U (en) * | 2012-11-13 | 2013-05-01 | 北京振兴计量测试研究所 | Fastening fixture for tail cover of electric connector |
| CN203679326U (en) * | 2014-01-24 | 2014-07-02 | 华南理工大学 | Novel flexible four-jaw chuck |
| CN204724882U (en) * | 2015-06-01 | 2015-10-28 | 冯炯培 | A kind of three-jaw clamping device |
| 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 CN201610097647.XA patent/CN105826017A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011208778A (en) * | 2010-03-30 | 2011-10-20 | Sanwa Tekki Corp | Piping fixing device |
| CN202917711U (en) * | 2012-11-13 | 2013-05-01 | 北京振兴计量测试研究所 | Fastening fixture for tail cover of electric connector |
| CN203679326U (en) * | 2014-01-24 | 2014-07-02 | 华南理工大学 | Novel flexible four-jaw chuck |
| CN204724882U (en) * | 2015-06-01 | 2015-10-28 | 冯炯培 | A kind of three-jaw clamping device |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105826015A (en) | Easily mounted high-voltage instrument transformer | |
| CN105826017A (en) | Easily mounted high-voltage instrument transformer | |
| CN105826013A (en) | Convenient-to-mount high-voltage transformer | |
| CN105826016A (en) | Easy-to-mount high-voltage transformer | |
| CN105826014A (en) | High-voltage transformer convenient for mounting | |
| CN105826012A (en) | Power high voltage mutual inductor | |
| CN105845327A (en) | High-voltage power transformer | |
| CN105633619A (en) | Overhead electric power fitting | |
| CN106057453A (en) | High-voltage power transformer | |
| CN105551734A (en) | High voltage electric transformer | |
| CN105551738A (en) | Multifunctional transformer | |
| CN105609240A (en) | Easy-to-install high-voltage transformer | |
| CN105761918A (en) | Electric power high-voltage transformer | |
| CN105575598A (en) | Electric transformer | |
| CN105826719A (en) | Electric power fitting | |
| CN105551735A (en) | High voltage electric transformer | |
| CN105551740A (en) | Middle-high voltage transformer | |
| CN206098084U (en) | Well high -voltage transformer | |
| CN105551736A (en) | Electric power high voltage transformer | |
| CN105551737A (en) | Multifunctional transformer | |
| CN105609250A (en) | High-voltage power transformer | |
| CN105551739A (en) | Middle-high voltage transformer | |
| CN105845326A (en) | High-voltage power transformer | |
| CN105742022A (en) | Power transformer | |
| CN105609245A (en) | High-voltage transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160803 |