CN205159031U - Arc iron core coil current transformer - Google Patents
Arc iron core coil current transformer Download PDFInfo
- Publication number
- CN205159031U CN205159031U CN201520964557.7U CN201520964557U CN205159031U CN 205159031 U CN205159031 U CN 205159031U CN 201520964557 U CN201520964557 U CN 201520964557U CN 205159031 U CN205159031 U CN 205159031U
- Authority
- CN
- China
- Prior art keywords
- iron core
- integrating circuit
- arc
- winding
- shaped iron
- 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- Withdrawn - After Issue
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 238000004804 winding Methods 0.000 claims abstract description 29
- 239000012212 insulator Substances 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 4
- 229910052573 porcelain Inorganic materials 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 11
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 230000002411 adverse Effects 0.000 abstract description 4
- 238000004080 punching Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract 2
- 239000002689 soil Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Transformers For Measuring Instruments (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The utility model discloses an arc iron core coil current transformer, including the arc iron core, secondary coil, the integrating circuit module, support and vase insulator, secondary coil is including measuring winding and power winding, measure winding and power winding technique on the arc iron core, inside power supply circuit and the integrating circuit of being provided with of integrating circuit module, the power winding is connected with the power supply circuit electricity, it is connected with the integrating circuit electricity to measure the winding, the arc iron core sets up in the inside upper portion of support, the bottom of integrating circuit module setting inside the support, the support sets up inside the vase insulator, vase insulator bottom is provided with the through -hole. The utility model discloses an iron core is convex, neither needs the punching installation to the wire electric current when measuring, also need not cut fixed mounting again, simple installation with the wire to its iron core and coil seal installation have good anti -soil performance inside the vase insulator, can use for a long time under outdoor adverse circumstances.
Description
Technical field
The utility model relates to electric measurement field, especially relates to a kind of arc-shaped iron core coil current instrument transformer.
Background technology
Current current measurement instrument transformer can be divided into two types by its iron core and loop construction, closed core type current transformer and tubular wire ring type (Luo-coil) current transformer, closed core type current transformer occupies higher share in current transformer, the electric current that this type current instrument transformer exports is larger, power is higher, simulative display instrument can be contained in interior plurality of devices by access package simultaneously, its shortcoming has 2 points: (1) is under the failure conditions such as grid short circuit, this closed core current transformer there will be saturated phenomenon, this has impact to proterctive equipment, (2) closed core current transformer generally adopts punching, need to consider the problems such as the exterior insulation of closed core and coil and outside creepage distance during the design of this current transformer, what current transformer was done is very large very heavy, not only increase cost, and also not too convenient during installation on transmission line.(3) current iron core-closed current transformer many employings epoxide resin vacuum pouring type makes, and be divided into indoor use and outdoor application two profiles formula, although the material being added with ultraviolet radiation resisting damage of outdoor application, but real in outdoor Long-Time Service, because ultraviolet long-term irradiation is to the destruction of its material insulation property.Tubular wire ring type (Luo-coil) current transformer be mainly used in digital intellectualization transformer station at present and some special occasions (as the strong current generator of testing agency, high energy physics laboratory etc.), its advantage is lightweight, volume is little, saturation problem can not be there is in its superior performance of big current workplace, but the antijamming capability of this current transformer is very poor, when transmission line underloading or zero load, electromagnetic interference can have a strong impact on its certainty of measurement, another one problem is that its carrying load ability is special poor, special metering must be made for this instrument transformer, measuring and protection device.
Application number: 201310701397.2, name is called: a kind of patent of invention of current transformer discloses a kind of current transformer, comprises main body, and described main body is arranged with base, is provided with socket above main body, is provided with fenestra in the middle of described main body.By being totally enclosed type bus type structure by main body once-forming, and sealed by epoxy resin, prevent from entering dust in main body and prevent other people from carrying out stealing by instrument transformer, increase the useful life of instrument transformer, improve the precision of instrument transformer.But this current transformer still belongs to hollow coil formula current transformer, do not solve general instrument transformer install convenient not and cannot the problem of Long-Time Service under the adverse circumstances of outdoor.
Utility model content
In view of this, the purpose of this utility model is for the deficiencies in the prior art, provides a kind of arc-shaped iron core coil current instrument transformer, solve existing current transformer install convenient not and cannot the problem of Long-Time Service under the adverse circumstances of outdoor.
For achieving the above object, the utility model by the following technical solutions:
A kind of arc-shaped iron core coil current instrument transformer, comprise arc-shaped iron core, secondary coil, integrating circuit module, support and porcelain bottle insulators, described secondary coil comprises measures winding and power supply winding, described measurement winding and power supply winding technique are in described arc-shaped iron core, described integrating circuit inside modules is provided with power circuit and integrating circuit, described power supply winding is electrically connected with power circuit, described measurement winding is electrically connected with integrating circuit, described arc-shaped iron core is arranged at the top of described internal stent, described integrating circuit module installation is in the bottom of described internal stent, described Bracket setting is inner in described porcelain bottle insulators, through hole is provided with bottom described porcelain bottle insulators.
Preferably, the central angle angular range of described arc-shaped iron core is 60 °-180 °.
Preferably, described power circuit comprises rectification unit and filter unit, and the output of described rectification unit is connected with the input of described filter unit.
Preferably, described integrating circuit module is secured by bolts in the bottom of described support, and the output line of described integrating circuit module is drawn by described through hole.
Preferably, described integrating circuit module is cast in the bottom of described support by poured with epoxy resin layer, and the output line of described integrating circuit module is drawn by described through hole.
The beneficial effects of the utility model are:
1, iron core of the present utility model is circular arc, neither needs punching to install, also do not need wire to block to fixedly mount, simple installation again, and be also convenient to follow-up examine and replace when measuring current in wire;
2, iron core of the present utility model and coil are seal-installed on porcelain bottle insulators inside, have good antifouling property, can under the adverse circumstances of outdoor Long-Time Service;
3, the utility model directly can meet the multiple needs of distribution automation system by other double measurement equipment supporting;
4, power circuit and integrating circuit is provided with in integrating circuit module of the present utility model, power circuit comprises rectification unit and filter unit, can provide galvanic current source for integrating circuit, does not need from outside external power supply, decrease wiring difficulty, be easy to the installation and maintenance of system;
5, the utility model is the current transformer that one kind of multiple occasions can use, and can be applied to traditional transformer station, intelligent substation, can be used as conventional current instrument transformer and use, and can be used as again electric mutual inductor and use.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1 of the present utility model;
Fig. 2 is the structural representation of embodiment 2 of the present utility model;
In figure: 1-arc-shaped iron core, 2-measure winding, 3-power supply winding, 4-support, 5-integrating circuit module, 6-through hole, 7-porcelain bottle insulators, 8-bolt, 9-poured with epoxy resin layer.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Embodiment 1:
As shown in Figure 1, the utility model comprises arc-shaped iron core 1, secondary coil, integrating circuit module 5, support 4 and porcelain bottle insulators 7.Arc-shaped iron core 1 is the silicon steel material of high magnetic property, and the angular range of its central angle is 60 °-180 °, and the central angle of the arc-shaped iron core 1 of the present embodiment is 60 °.
Secondary coil comprises measures winding 2 and power supply winding 3, measurement winding 2 and power supply winding 3 are wound in arc-shaped iron core 1, integrating circuit module 5 inside is provided with power circuit and integrating circuit, and power supply winding 3 is electrically connected with power circuit, measures winding 2 and is electrically connected with integrating circuit.
Integrating circuit module 5 is arranged at the bottom of support 4 inside, the power circuit of integrating circuit module 5 is provided with rectification unit and filter unit, measure winding 2 and export the induced electromotive force be directly proportional to the differential of primary current, the voltage that the output of this induced electromotive force is reduced into as being directly proportional to primary current in the integrating circuit of integrating circuit module 5 exports, the output electromotive force of power supply winding 3 is also directly proportional to the differential of primary current, this electromotive force exports and is carried out rectification by the rectification unit in follow-up power circuit and filter unit, the stable voltage output of supplying integrating circuit work is obtained after filtering and voltage stabilizing, the output voltage signal of the measurement winding 2 after integral processing can Direct driver measuring instrument and other electric logging equipment.
Arc-shaped iron core 1 of the present utility model, secondary coil are arranged on the top of support 4 inside, the perforation of drawing for secondary coil is left at the center of support 4, the output of secondary coil is introduced the bottom of support 4, space and screw that integrating circuit module 5 is installed is left bottom support 4, be fixed on bottom support 4 by integrating circuit module 5 by bolt 8, support 4 is as the support frame of this arc-shaped iron core coil current instrument transformer.
After the camber line iron core 1 of above-mentioned current transformer, secondary coil, support 4, integrating circuit module 5 installation, the porcelain bottle insulators 7 being placed on a hollow is inner, and the secondary output line of integrating circuit module 5 is drawn by the through hole 6 bottom porcelain bottle insulators 7.
When using the utility model to carry out the current measurement of power distribution network, only need primary current wire and arc-shaped iron core 1 cross section orthogonal to place, iron core does not directly contact with wire, but is come and a conductive contact by insulator porcelain vase.After equipment places, by the secondary output line of integrating circuit module 5 and externally measured Instrument connection, the electric current in power distribution network just can be read.
Embodiment 2:
Embodiment 2 is with the difference of embodiment 1: as shown in Figure 2, integrating circuit module 5 is cast in the bottom of support 4 by poured with epoxy resin layer 9.
The using method of embodiment 2 is identical with embodiment 1.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, other amendments that those of ordinary skill in the art make the technical solution of the utility model or equivalently to replace, only otherwise depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of right of the present utility model.
Claims (5)
1. an arc-shaped iron core coil current instrument transformer, it is characterized in that: comprise arc-shaped iron core, secondary coil, integrating circuit module, support and porcelain bottle insulators, described secondary coil comprises measures winding and power supply winding, described measurement winding and power supply winding technique are in described arc-shaped iron core, described integrating circuit inside modules is provided with power circuit and integrating circuit, described power supply winding is electrically connected with power circuit, described measurement winding is electrically connected with integrating circuit, described arc-shaped iron core is arranged at the top of described internal stent, described integrating circuit module installation is in the bottom of described internal stent, described Bracket setting is inner in described porcelain bottle insulators, through hole is provided with bottom described porcelain bottle insulators.
2. arc-shaped iron core coil current instrument transformer according to claim 1, is characterized in that: the central angle angular range of described arc-shaped iron core is 60 °-180 °.
3. arc-shaped iron core coil current instrument transformer according to claim 1, is characterized in that: described power circuit comprises rectification unit and filter unit, and the output of described rectification unit is connected with the input of described filter unit.
4. arc-shaped iron core coil current instrument transformer according to claim 1, is characterized in that: described integrating circuit module is secured by bolts in the bottom of described support, and the output line of described integrating circuit module is drawn by described through hole.
5. arc-shaped iron core coil current instrument transformer according to claim 1, it is characterized in that: described integrating circuit module is cast in the bottom of described support by poured with epoxy resin layer, the output line of described integrating circuit module is drawn by described through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520964557.7U CN205159031U (en) | 2015-11-30 | 2015-11-30 | Arc iron core coil current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520964557.7U CN205159031U (en) | 2015-11-30 | 2015-11-30 | Arc iron core coil current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205159031U true CN205159031U (en) | 2016-04-13 |
Family
ID=55694697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520964557.7U Withdrawn - After Issue CN205159031U (en) | 2015-11-30 | 2015-11-30 | Arc iron core coil current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205159031U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374507A (en) * | 2015-11-30 | 2016-03-02 | 国家电网公司 | Current transformer with arc-shaped iron core and coil and manufacturing method thereof |
| CN110940893A (en) * | 2019-12-13 | 2020-03-31 | 西安锐驰电器有限公司 | DC line fault detection system and method |
| CN111190077A (en) * | 2020-03-13 | 2020-05-22 | 北京合锐赛尔电力科技股份有限公司 | Comprehensive electronic sensor for 10kV overhead line and feature acquisition method |
-
2015
- 2015-11-30 CN CN201520964557.7U patent/CN205159031U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374507A (en) * | 2015-11-30 | 2016-03-02 | 国家电网公司 | Current transformer with arc-shaped iron core and coil and manufacturing method thereof |
| CN105374507B (en) * | 2015-11-30 | 2017-07-14 | 国家电网公司 | Arc-shaped iron core coil current transformer and preparation method thereof |
| CN110940893A (en) * | 2019-12-13 | 2020-03-31 | 西安锐驰电器有限公司 | DC line fault detection system and method |
| CN111190077A (en) * | 2020-03-13 | 2020-05-22 | 北京合锐赛尔电力科技股份有限公司 | Comprehensive electronic sensor for 10kV overhead line and feature acquisition method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201514851U (en) | Outdoor self-excited source three-phase combined electronic transducer metering device | |
| CN203191419U (en) | Intelligent electricity meter with diamagnetic structured electromagnetic current transformers | |
| CN203310894U (en) | Novel field winding all-fiber current transformer | |
| CN205159031U (en) | Arc iron core coil current transformer | |
| CN105374507A (en) | Current transformer with arc-shaped iron core and coil and manufacturing method thereof | |
| CN105044643A (en) | Design method for extra-high voltage CT coil having self-correcting function | |
| CN104133103A (en) | Device for monitoring overhead wire load currents | |
| CN204855773U (en) | Self -correcting coil of CT measurement winding for electric power system | |
| CN201820628U (en) | Electronic current and voltage transformer | |
| CN105510694A (en) | Power distribution network line current acquisition device and method | |
| CN203551621U (en) | High-voltage dry-type metering box with three-phase four-wire system | |
| CN203070913U (en) | High-voltage line current transformer | |
| CN203366868U (en) | Supporting insulator and voltage sensor | |
| Hong et al. | Development of±800kV UHVDC transmission technology in China | |
| CN203013493U (en) | Electronic voltage transformer for high-voltage cubicle type gas insulated switchgear | |
| CN202735390U (en) | Three-phase zero sequence combined type voltage sensing device | |
| CN204927021U (en) | Three -phase electromagnetic type voltage transformer | |
| CN205028771U (en) | Outdoor measurement combination mutual -inductor device of three -sphase four -wire system | |
| CN203871171U (en) | Combined type mutual inductor | |
| CN108878115B (en) | 10kV column-mounted high-voltage integrated metering device | |
| CN216526844U (en) | Remote monitoring device for transformer based on internet | |
| CN202093970U (en) | Electronic bushing current transformer assembled outside high-voltage combined electric appliance | |
| CN108761165B (en) | Passive coaxial induction electronic voltage transformer | |
| CN204166037U (en) | High-voltage meter | |
| CN216084583U (en) | Current transformer for high-voltage power cabinet for power construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160413 Effective date of abandoning: 20170714 |
|
| AV01 | Patent right actively abandoned |