CN105845333A - Improved type high-voltage current transformer - Google Patents
Improved type high-voltage current transformer Download PDFInfo
- Publication number
- CN105845333A CN105845333A CN201610282090.7A CN201610282090A CN105845333A CN 105845333 A CN105845333 A CN 105845333A CN 201610282090 A CN201610282090 A CN 201610282090A CN 105845333 A CN105845333 A CN 105845333A
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- Prior art keywords
- tube
- core
- heat
- current transformer
- conducting block
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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
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
-
- 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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- 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
- H01F38/28—Current transformers
- H01F38/30—Constructions
-
- 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
-
- 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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
Abstract
The invention discloses an improved type high-voltage current transformer. The current transformer comprises a base tube, a core tube, two sets of pressing claw assemblies, two planar nuts and a current transformer, wherein the current transformer is arranged on the base tube in a sleeving manner; the base tube is equipped with crimping bosses; radial limiting sliding holes are formed in the tube wall of the core tube; one or more blocking tables are arranged on the inner circumferential wall of the core tube; the two planar nuts are both rotationally arranged in the tube cavity of the core tube, and are arranged on the two sides of the corresponding blocking table respectively; the driving thread parts of each set of pressing claw assembly are positioned on one side, far from the corresponding blocking table, of the corresponding planar nut; each planar nut comprises a fastening part and a planar thread part which is meshed with and adapted to the driving thread part of each pressing claw of the corresponding one set of pressing claw assembly; and one or more mounting screw holes with one or more built-in temperature sensing apparatuses are formed in the base tube. The improved type high-voltage current transformer has an excellent anti-loosing effect.
Description
Technical field
The invention belongs to technical field of electric power, be specifically related to a kind of improved high-voltage current transformer.
Background technology
The general principle of zero-sequence current protection is based on Kirchhoff's current law (KCL): flow into the telegram in reply of any node in circuit
The algebraical sum of stream is equal to zero.In the case of circuit and electrical equipment are normal, the vector of each phase current is equal to zero, therefore, zero
The secondary side winding no signal output of sequence current transformer, executive component is failure to actuate.When occurring to get an electric shock or each during leak current fault
The vector of phase current is not zero, and fault current makes to produce in the iron core of zero sequence current mutual inductor magnetic flux, zero sequence current mutual inductor
Produced electric current is zero-sequence current.When protection mechanism receives this zero sequence current signal, can take accordingly according to electrical leakage quantity
Protection act.Mostly the mounting means of existing zero sequence current mutual inductor is to use flange install fixing or use bonding mode solid
Fixed, its installation site is it is generally required to reserve, therefore makes its application by more restriction.
Summary of the invention
It is an object of the invention to provide a kind of be easily installed location, have real time temperature monitoring function improved high-voltage electricity
Current transformer.
The technical scheme realizing the object of the invention is: a kind of improved high-voltage current transformer, it is characterised in that: include one
Individual base tube, core pipe, two casing pressure claw assemblies, two plane nuts and a current transformer；Current transformer is set in base
Guan Shang；The internal perisporium of base tube is provided with crimping boss；Core pipe and base tube are arranged concentrically and are positioned at base tube tube chamber；On the tube wall of core pipe
Being provided with the spacing slide opening of multiple radial direction, the internal perisporium of core pipe is provided with a gear platform；Each casing pressure claw assembly includes three paws, respectively presses
Pawl includes pressing plate portion, the guide runner portion of the inwardly projecting formation of inwall from pressing plate portion and the driving being arranged on guide runner portion
Threaded portion；Each pressing plate portion is positioned between base tube inwall and core tube wall, and each guide runner portion inserts a corresponding radial direction on core pipe
In spacing slide opening, in each tube chamber driving threaded portion to stretch to core pipe；Each pressing plate portion and a corresponding crimping boss clamping are formed
One clamp hole；Two plane nuts all rotate and are arranged in core pipe tube chamber, the both sides of two plane nut separation gear platforms；Each set
The threaded portion that drives in paw assembly is respectively positioned on the corresponding plane nut side away from gear platform；Each plane nut includes fastening
Portion and engage adaptive flat thread portion with the threaded portion that drives of each paw in corresponding a set of paw assembly；Each radially spacing cunning
Kong Jun extends radially through core tube wall along core pipe, each paw under the guide and limit effect of radially spacing slide opening along the radial direction of core pipe
Reciprocatingly slide；Every casing pressure claw assembly and a corresponding plane nut are adaptive；Pressing plate portion is axially extending along base tube, edge, guide runner portion
Core pipe radially extends；Base tube is provided with the installation screw of built-in temperature sensing device；Temperature sensing device includes that metal material is made
The metal shell with storage tank, the temperature sensor being arranged in storage tank, accommodating for temperature sensor is crimped on
Spring in groove bottom wall, screwed pipe plug for limit spring；
Metal shell is provided with heat conduction boss close to one end of core tube hub axis, and metal shell is away from one end of core tube hub axis
It is provided with interior hexagonal and twists groove；The periphery wall of metal shell is provided with the external screw thread adaptive with installation screw, the internal perisporium of storage tank
It is provided with internal threaded regions；Temperature sensor includes the heat-conducting block using heat conductive insulating elastomeric material to make, is arranged in heat-conducting block
U-shaped thermo-sensitive resistor, be arranged on heat-conducting block two connect electric mortiser post；Heat-conducting block back and forth can be slided in the storage tank of metal shell
Dynamic；Heat-conducting block is connected on the diapire of storage tank close to one end of core tube hub axis；Two connect electric mortiser post and protrude and be arranged on and lead
On the hot block other end away from core tube hub axis；Heat-conducting block is away from the external diameter of the other end of core tube hub axis and storage tank
Enclosing formation cannelure between internal perisporium, spring is positioned in this cannelure and is set in heat-conducting block away from the one of core tube hub axis
On end；Screwed pipe plug is provided with external screw thread district close to the periphery wall of one end of core tube hub axis, this external screw thread district and metal-back
The internal threaded regions of body is adaptive；Screwed pipe plug is provided with outer-hexagonal away from the periphery wall of one end of core tube hub axis and twists portion；Spiral shell
The center of pipe plug is provided with tube chamber；Screwed pipe plug is fixedly installed in cannelure by its external screw thread district；Spring is close to core pipe
One end of central axis is connected on heat-conducting block, and spring is connected on screwed pipe plug away from the other end of core tube hub axis；Lead
Two on hot block connect in the tube chamber that electric mortiser post is positioned at screwed pipe plug.
Heat conduction boss is to protrude the sharp tooth boss formed close to one end of core tube hub axis from metal shell.
The present invention has positive effect: the improved high-voltage current transformer of (1) present invention is owing to carrying press claw type lock
Tight mechanism, can directly be fixedly installed on cable, it is not necessary to reserved installation position, it is easy to install, and have preferable anti-loosening effect
Really, firm intensity is relatively high and stable reliably.(2) present invention compares with by traditional bolt assembly clamping electric power cable, permissible
Apply bigger pressure, and there is excellent anti-loosening effect, the reliability of long-term work is effectively ensured.(3) present invention adopts
It is clamped on same cable with two casing pressure claw assemblies, there is the effect of dual fail-safe, in use go wrong even if the most a set of,
Also has its service behaviour of another set of guarantee.(4) installation screw of pressure pipe portion wall body is extended radially through along base tube owing to base tube is provided with, peace
Dress screw is fixed with temperature sensing device；So the present invention also has real time temperature monitoring function.
Accompanying drawing explanation
Fig. 1 is that the one of the first structure of the present invention partly cuts open structural representation；
Fig. 2 is a kind of perspective view when removing current transformer of the zero sequence current mutual inductor shown in Fig. 1；
Fig. 3 is a kind of front view of zero sequence current mutual inductor shown in Fig. 2；
Fig. 4 is that shown in Fig. 2, the one of zero sequence current mutual inductor partly cuts open structural representation；
Fig. 5 is a kind of explosive view of zero sequence current mutual inductor shown in Fig. 2；
Fig. 6 is a kind of explosive view when removing base tube of the zero sequence current mutual inductor shape shown in Fig. 2；
Fig. 7 is that the one of the second structure of the present invention partly cuts open structural representation；
Fig. 8 is the close-up schematic view in Fig. 7 at B；
Fig. 9 is that one when removing current transformer of the zero sequence current mutual inductor shown in Fig. 7 partly cuts open structural representation.
Detailed description of the invention
(embodiment 1)
The present embodiment is a kind of improved high-voltage current transformer, as shown in Fig. 1 to Fig. 6, including 1, core pipe of a base tube
2,3, two plane nuts 4 of two casing pressure claw assemblies and a current transformer 9.
The internal perisporium of base tube is axially arranged with three crimping boss 11 along base tube, and the inwall of each crimping boss is provided with deep-slotted chip breaker
111；The internal perisporium of base tube is axially additionally provided with four positioning runners 12 along base tube；Core pipe and base tube are arranged concentrically and are positioned at base tube pipe
In chamber；The periphery wall of core pipe is provided with four support flanges 21 extended along core pipe radially protruding, each outboard end supporting flange
It is positioned in a corresponding positioning runner, thus core pipe is supported in the tube chamber being positioned at base tube；The tube wall of core pipe is provided with six
The most spacing slide opening 22, each radially spacing slide opening all extends radially through core tube wall along core pipe；The internal perisporium of core pipe be provided with to
Three annular gear platforms 23 of projecting inward formation.
Each casing pressure claw assembly includes three paws 5；Every casing pressure claw assembly and a corresponding plane nut are adaptive；Each paw bag
Include pressing plate portion 51, the guide runner portion 52 of the inwardly projecting formation of inwall from pressing plate portion and the driving being arranged on guide runner portion
Threaded portion 53；Pressing plate portion is axially extending along base tube, and guide runner portion radially extends along core pipe；Set on the outer wall in each paw pressing plate portion
There is arc clip slot 511；Each pressing plate portion is positioned between base tube inwall and core tube wall, and each guide runner portion inserts on core pipe corresponding one
In the spacing slide opening of individual radial direction, in each tube chamber driving threaded portion to stretch to core pipe；Each paw is in the guiding limit of radially spacing slide opening
Under the effect of position, the radial direction along core pipe reciprocatingly slides.
In the present embodiment, the radial cross-sectional shape of each radially spacing hole is I-shaped, the radial section in each guide runner portion
Shape is adaptive with radial direction spacing hole I-shaped；In concrete practice, radially spacing hole and the radial section in guide runner portion
Shape also can be selected for other shape, such as circle, rectangle, square, as long as having radially-directed and limit effect.
In the present embodiment, the deep-slotted chip breaker of a corresponding crimping boss is just arranged by the arc clip slot of each paw, and this paw
Arc clip slot and this crimping boss deep-slotted chip breaker clamping formed a clamp hole 6, each clamp hole for clamping one power line
Cable；The present embodiment forms three clamp holes, altogether three electric power cables of clamping altogether.Owing to three electric power cables are from matrix slip pipe tube chamber
In pass, current transformer can carry out zero-sequence current detection by induction mode to three electric power cables, finds in time
Leakage current fault, and send real time information to distance host by wireless transmit/receive units, provide for power circuit intellectuality
Basic data.In the present embodiment, current transformer 9 is ring current transformer, and this ring current transformer is set in outside base tube
On wall.In concrete practice, also can arrange detent on the outer wall of base tube, current transformer is positioned in this detent,
So that current transformer is more firm.In the present embodiment, the size in each clamp hole can be different, is used for clamping difference
The cable of thickness.
Two plane nuts all rotate and are arranged in core pipe tube chamber, the both sides of two plane nut separation annular gear platforms；Respectively
The threaded portion that drives in casing pressure claw assembly is respectively positioned on the corresponding plane nut side away from annular gear platform；Each plane nut
Periphery wall and core inside pipe wall slide adjacent, and the center of each plane nut is provided with fastening part 42；One side of each plane nut and
Annular gear platform slides adjacent, and another side is provided with and engages adaptation with the threaded portion that drives of each paw in corresponding a set of paw assembly
Flat thread portion 41；Flat thread portion is annular, and flat thread portion is provided with archimedean spiral groove；The driving of each paw assembly
The thread groove that threaded portion is provided with and this archimedean spiral groove is adaptive, it is adjacent that each driving threaded portion is arranged on guide runner portion, place
Connect a side of plane nut.
The fastening part of the present embodiment midplane nut is interior hexagonal shape fastener hole or interior hexagonal shape binding groove, and it twists operation
Use inner hexagon spanner；In concrete practice, described fastening part just can use other shape, the most square or in-line or plum blossom
Shape, all can select.
In the present embodiment, each plane nut, when reciprocating rotation, drives its flat thread portion reciprocating rotation, so by with
In the corresponding a set of paw assembly of driving threaded portion driving that the engagement of this flat thread portion is adaptive, each paw moves, owing to each paw exists
Under the guide and limit effect of the most spacing slide opening, the radial direction only along core pipe moves back and forth, so that in each casing pressure claw assembly
The move mode of paw be close to each other towards core tube hub or away from, thus unclamp or clamp the electric power being positioned in each clamp hole
Cable.
The present embodiment gravity centre distribution is relatively reasonable, when on the overhead power line of high-altitude, is conducive to alleviating vibration；Separately
Outward, the present embodiment drives paw clamping electric power cable by flat thread portion, and by traditional bolt assembly clamping power line
Cable is compared, particularly excellent in anti-loosening effect, and the reliability of long-term work is effectively ensured.It addition, the present embodiment passes through
Same cable is used two casing pressure claw assembly clampings, there is the effect of dual fail-safe, in use go wrong even if the most a set of,
Also has its service behaviour of another set of guarantee.
The present embodiment can use as high pressure zero sequence current mutual inductor, for detecting the existence of leakage current, with in time
Find leak current fault.
(embodiment 2)
The present embodiment and embodiment 1 are essentially identical, and difference is: as shown in Fig. 7 to Fig. 9, and the electric current in the present embodiment is mutual
Sensor 9 includes toroidal inductive body 91 and intelligent control module 92；The monnolithic case of intelligent control module is also annular；Annular sense
Body 91 and intelligent control module 92 is answered to be disposed side by side on the outer wall of base tube.
Base tube 1 is provided with the installation screw 15 extending radially through base tube wall body；This installation screw is fixed with a TEMP
Device 8.
Temperature sensing device 8 includes the metal shell 81 with storage tank 811 that metal material makes, is arranged on storage tank
In temperature sensor 82, the spring 83 for temperature sensor is crimped on storage tank diapire, the spiral shell that is used for limit spring
Pipe plug 84.
Metal shell is provided with as puncturing the heat conduction boss 813 used, metal-back close to one end 812 of core tube hub axis
Body is provided with interior hexagonal away from one end 814 of core tube hub axis and twists groove 815；The periphery wall of metal shell is provided with and installs spiral shell
The external screw thread 816 that hole is adaptive, the internal perisporium of storage tank is provided with internal threaded regions 817；Heat conduction boss is close to core from metal shell
The sharp tooth boss formed is protruded in one end 812 of tube hub axis.
Temperature sensor includes using the heat-conducting block 821 that heat conductive insulating elastomeric material is made, the U-shaped being arranged in heat-conducting block
Thermo-sensitive resistor 822, two be arranged on heat-conducting block connect electric mortiser post 823；Heat-conducting block can be reciprocal in the storage tank of metal shell
Slide；Heat-conducting block is connected on the diapire of storage tank close to one end of core tube hub axis；Two connect electric mortiser post protrusion and are arranged on
On the heat-conducting block other end away from core tube hub axis；
Heat-conducting block encloses formation cannelure between external diameter and the internal perisporium of storage tank away from the other end of core tube hub axis
100, spring is positioned in this cannelure and is set on heat-conducting block one end away from core tube hub axis；
Screwed pipe plug is provided with external screw thread district 841 close to the periphery wall of one end of core tube hub axis, this external screw thread district and metal
The internal threaded regions 817 of housing is adaptive；Screwed pipe plug is provided with outer-hexagonal away from the periphery wall of one end of core tube hub axis and twists
Portion 842；The center of screwed pipe plug is provided with tube chamber 843；Screwed pipe plug is fixedly installed in cannelure by its external screw thread district；
Spring is connected on heat-conducting block close to one end of core tube hub axis, and spring abuts away from the other end of core tube hub axis
On screwed pipe plug；On heat-conducting block two connect electric mortiser post and are positioned in the tube chamber 843 of screwed pipe plug.
The internal perisporium of intelligent control module 92 is provided with inwardly projecting two and connects electric bushing (being not drawn on figure), respectively connects electricity
Socket inserts corresponding one and connects in electric bushing, so that temperature sensor is connected with the middle control circuit in intelligent control module.
This structure has the following advantages, owing to metal shell is easily deformed when extruding cable, and extrusion temperature sensor
Heat-conducting block, if heat-conducting block does not has mobile space, then easily pressurized deformation damages；The present embodiment, can by arranging spring
Heat-conducting block is crimped on the diapire of metal shell storage tank so that it is can correctly predict cable and junction, pressing plate pressing plate portion
Real time temperature；Can also be when, after metal shell compressive deformation, reserving mobile space to heat-conducting block, thus prevent heat-conducting block by pressurized
Damage；This structure has preferably Practical Performance.
In concrete practice, multiple installation screw and temperature sensing device can be set on base tube, for each
Cable and the temperature with base tube junction monitor in real time, thus realize the further intellectuality that power network monitoring runs.
Obviously, the above embodiment of the present invention is only for clearly demonstrating example of the present invention, and is not right
The restriction of embodiments of the present invention.For those of ordinary skill in the field, the most also may be used
To make other changes in different forms.Here without also cannot all of embodiment be given exhaustive.And these
Belong to obvious change that the connotation of the present invention extended out or variation still falls within protection scope of the present invention.
Claims (1)
1. an improved high-voltage current transformer, it is characterised in that: include a base tube, core pipe, two casing pressure claw assemblies,
Two plane nuts and a current transformer；Current transformer is set on base tube；The internal perisporium of base tube is provided with crimping boss；
Core pipe and base tube are arranged concentrically and are positioned at base tube tube chamber；The tube wall of core pipe is provided with the spacing slide opening of multiple radial direction, core pipe interior
Perisporium is provided with a gear platform；Each casing pressure claw assembly includes three paws, each paw include pressing plate portion, inwall from pressing plate portion to
The guide runner portion of projecting inward formation and the driving threaded portion being arranged in guide runner portion；Each pressing plate portion be positioned at base tube inwall and
Between core tube wall, each guide runner portion inserts on core pipe in a corresponding spacing slide opening of radial direction, and each driving threaded portion stretches to
In the tube chamber of core pipe；Each pressing plate portion and a corresponding crimping boss clamping form a clamp hole；Two plane nuts all rotate
It is arranged in core pipe tube chamber, the both sides of two plane nut separation gear platforms；Driving threaded portion in each casing pressure claw assembly is respectively positioned on
A corresponding plane nut is away from the side of gear platform；Each plane nut includes fastening part and each with corresponding a set of paw assembly
The flat thread portion driving threaded portion engagement adaptation of paw；Each radially spacing slide opening all extends radially through core pipe pipe along core pipe
Wall, each paw radial direction along core pipe under the guide and limit effect of radially spacing slide opening reciprocatingly slides；Every casing pressure claw assembly and phase
Answer a plane nut adaptive；Pressing plate portion is axially extending along base tube, and guide runner portion radially extends along core pipe；Base tube is provided with built-in
The installation screw of temperature sensing device；Temperature sensing device includes the metal shell with storage tank that metal material makes, sets
Put the temperature sensor in storage tank, for spring temperature sensor being crimped on storage tank diapire, be used for spacing bullet
The screwed pipe plug of spring；
Metal shell is provided with heat conduction boss close to one end of core tube hub axis, and metal shell is away from one end of core tube hub axis
It is provided with interior hexagonal and twists groove；The periphery wall of metal shell is provided with the external screw thread adaptive with installation screw, the internal perisporium of storage tank
It is provided with internal threaded regions；Temperature sensor includes the heat-conducting block using heat conductive insulating elastomeric material to make, is arranged in heat-conducting block
U-shaped thermo-sensitive resistor, be arranged on heat-conducting block two connect electric mortiser post；Heat-conducting block back and forth can be slided in the storage tank of metal shell
Dynamic；Heat-conducting block is connected on the diapire of storage tank close to one end of core tube hub axis；Two connect electric mortiser post and protrude and be arranged on and lead
On the hot block other end away from core tube hub axis；Heat-conducting block is away from the external diameter of the other end of core tube hub axis and storage tank
Enclosing formation cannelure between internal perisporium, spring is positioned in this cannelure and is set in heat-conducting block away from the one of core tube hub axis
On end；Screwed pipe plug is provided with external screw thread district close to the periphery wall of one end of core tube hub axis, this external screw thread district and metal-back
The internal threaded regions of body is adaptive；Screwed pipe plug is provided with outer-hexagonal away from the periphery wall of one end of core tube hub axis and twists portion；Spiral shell
The center of pipe plug is provided with tube chamber；Screwed pipe plug is fixedly installed in cannelure by its external screw thread district；Spring is close to core pipe
One end of central axis is connected on heat-conducting block, and spring is connected on screwed pipe plug away from the other end of core tube hub axis；Lead
Two on hot block connect in the tube chamber that electric mortiser post is positioned at screwed pipe plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610282090.7A CN105845333A (en) | 2016-05-02 | 2016-05-02 | Improved type high-voltage current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610282090.7A CN105845333A (en) | 2016-05-02 | 2016-05-02 | Improved type high-voltage current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105845333A true CN105845333A (en) | 2016-08-10 |
Family
ID=56590525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610282090.7A Withdrawn CN105845333A (en) | 2016-05-02 | 2016-05-02 | Improved type high-voltage current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105845333A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006546A (en) * | 2019-04-12 | 2019-07-12 | 李晨阳 | A kind of special utility intelligent thermometer detecting hydraulic elevator |
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| CN101419096A (en) * | 2008-12-12 | 2009-04-29 | 王涛 | Temperature sensor fixing structure on high-pressure electrified conductor and electrified installation tool thereof |
| 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 |
| CN204276947U (en) * | 2014-12-01 | 2015-04-22 | 温岭市深澳机床厂(普通合伙) | Scroll chuck |
| CN105355406A (en) * | 2015-11-24 | 2016-02-24 | 广东电网有限责任公司电力科学研究院 | Opening current transformer capable of being installed in powered-on mode |
-
2016
- 2016-05-02 CN CN201610282090.7A patent/CN105845333A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101419096A (en) * | 2008-12-12 | 2009-04-29 | 王涛 | Temperature sensor fixing structure on high-pressure electrified conductor and electrified installation tool thereof |
| 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 |
| CN204276947U (en) * | 2014-12-01 | 2015-04-22 | 温岭市深澳机床厂(普通合伙) | Scroll chuck |
| CN105355406A (en) * | 2015-11-24 | 2016-02-24 | 广东电网有限责任公司电力科学研究院 | Opening current transformer capable of being installed in powered-on mode |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006546A (en) * | 2019-04-12 | 2019-07-12 | 李晨阳 | A kind of special utility intelligent thermometer detecting hydraulic elevator |
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Application publication date: 20160810 |
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| WW01 | Invention patent application withdrawn after publication |