CN203799859U - Outdoor bus type current transformer - Google Patents
Outdoor bus type current transformer Download PDFInfo
- Publication number
- CN203799859U CN203799859U CN201420152310.0U CN201420152310U CN203799859U CN 203799859 U CN203799859 U CN 203799859U CN 201420152310 U CN201420152310 U CN 201420152310U CN 203799859 U CN203799859 U CN 203799859U
- Authority
- CN
- China
- Prior art keywords
- coil
- current transformer
- type current
- insulation shell
- outdoor
- 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.)
- Expired - Fee Related
Links
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
An outdoor bus type current transformer comprises an insulation shell, a coil and an annular iron core. The coil is wound on the annular iron core. Buffer layers are arranged outside the coil, and the coil is correspondingly connected with a terminal block through a lead, the insulation shell at the circular hole of the annular iron core is provided with a circular mounting hole, a high-voltage shielding layer is fixed in the circular mounting hole and is connected with an equipotential connecting wire. One end of the equipotential connecting wire is connected with the high-voltage shielding layer, and the other end of the equipotential connecting wire is connected to a primary busbar. The capacity of the outdoor bus type current transformer can reach 50VA, and no-load voltage ratio can reach 4000:5A, so that the outdoor bus type current transformer is high in capacity and no-load voltage ratio, compact in structure, long in service life and simple to operate.
Description
Technical field
The utility model belongs to outdoor mutual inductor field, particularly a kind of outdoor bus-type current transformer.
Background technology
Wanting of the function ratio past that present distribution network will be realized is many, capacity, no-load voltage ratio are also much higher than before, variation is many, and the common capacity of present current transformer is little, no-load voltage ratio is also lower, so develop a series of instrument transformers for the requirement of modern electric net, is task of top priority of present stage instrument transformer technological development.
Utility model content
The purpose of this utility model is to provide a kind of outdoor bus-type current transformer, this instrument transformer compact conformation, and steady quality, simple to operate.
The technical scheme adopting is:
An outdoor bus-type current transformer, comprises insulation shell, coil and annular core.
Its technical essential is:
Coil winding is on annular core.
Coil is provided with resilient coating outward.
Coil is connected by lead-in wire and binding post are corresponding.
Be positioned on the insulation shell at circular hole place of annular core and offer circular mounting hole, in circular mounting hole, be fixed with high-tension shielding layer.
On high-tension shielding layer, be connected with bonding wire.
Coil, annular core and resilient coating are all positioned at insulation shell.
Resilient coating below is provided with at least one support, and support is positioned at insulation shell.
High-tension shielding layer is aluminium net.
Described resilient coating is insulation wrinkle ply of paper.
Insulation shell is fixed on mounting panel, offers installing hole on mounting panel.Insulation shell is outdoor epoxy resin housing.
Coil is secondary coil, and binding post is secondary wiring terminals.Bonding wire one end is connected on high-tension shielding layer, and the other end is connected on a busbar.
This current transformer is the bus-type current transformer of 10kV high power capacity large velocity ratio.(because it does not have primary winding, the space in insulation shell be only used for placing secondary coil), common bus-type current transformer capacity is 15-30VA, this instrument transformer capacity can reach 50 VA.Project organization is compact, and no-load voltage ratio can reach 4000:5A, meets the variations such as large velocity ratio, high power capacity, can adapt to power grid construction and the long-term fast-developing needs of transformation completely.
This instrument transformer has overcome the low not enough shortcoming of product parameters in the past technically, and main insulation material adopts outdoor epoxide resin vacuum pouring technology, and quality stability, useful life, the insulation property of product are all had increased significantly.
Its advantage is:
This current transformer is that outdoor epoxide resin vacuum is poured into a mould totally-enclosed bus-type structure; can be applicable to altitude environment; for outdoor 50 ~ 60Hz; rated voltage is in the electric power system of 10KV, to do the measurement of precision current, relaying protection and electric energy, and instrument transformer has the good characteristics such as dielectric strength is high, good mechanical property, fire prevention, protection against the tide.
Iron core adopts loop configuration, to meet the measuring requirement of high power capacity, large velocity ratio, have simple to operate,
The feature that stability is strong.
Product parameters can meet the multiple demand of power distribution network.The parameters such as level time combination can arbitrarily combine and meet the supporting different demands of electric power system.
Outdoor epoxide resin vacuum cast housing is to reduce partial discharge quantity.Improved the insulation property of product, and the product of outdoor poured with epoxy resin is high temperature resistant, corrosion-resistant, improve useful life etc.
Accompanying drawing explanation
Fig. 1 is the partial sectional view of main apparent direction of the present utility model.
Fig. 2 is the partial sectional view of side-looking direction of the present utility model.
Fig. 3 is the half sectional view of side-looking direction of the present utility model.
Embodiment
An outdoor bus-type current transformer, comprises insulation shell 1, coil 2 and annular core 3.
Coil 2 windings are on annular core 3.
The outer resilient coating 7 that is provided with of coil 2.
Coil 2 is connected with binding post 10 is corresponding by lead-in wire.
Be positioned on the insulation shell 1 at circular hole place of annular core 3 and offer circular mounting hole 4, be fixed with high-tension shielding layer 5 in circular mounting hole 4, high-tension shielding layer 5 is aluminium net.
On high-tension shielding layer 5, be connected with bonding wire 6.
Coil 2, annular core 3 and resilient coating 7 are all positioned at insulation shell 1.
Described resilient coating 7 is insulation wrinkle ply of paper.
Resilient coating 7 belows are provided with two supports 8, and support 8 is positioned at insulation shell 1.
Insulation shell 1 is fixed on mounting panel 9, on mounting panel 9, offers installing hole.
Insulation shell 1 is outdoor epoxy resin housing.
Resilient coating 7 can reduce the mechanical force that Inside coil 2 bears, and prevents insulation shell 1 cracking, extends product useful life.
Coil 2 is secondary coil, and binding post 10 is secondary wiring terminals.
Bonding wire 6 one ends are connected on high-tension shielding layer 5, and the other end is connected on a busbar, can effectively prevent that electric discharge phenomena from producing, and extend product useful life, make product more safe and reliable, and outdoor epoxy resin is known materials.
Claims (5)
1. an outdoor bus-type current transformer, comprises insulation shell (1), coil (2) and annular core (3); It is characterized in that:
Coil (2) winding is on annular core (3);
The outer resilient coating (7) that is provided with of coil (2);
Coil (2) is connected by lead-in wire and binding post (10) are corresponding;
Be positioned on the insulation shell (1) at circular hole place of annular core (3) and offer circular mounting hole (4), in circular mounting hole (4), be fixed with high-tension shielding layer (5);
On high-tension shielding layer (5), be connected with bonding wire (6);
Coil (2), annular core (3) and resilient coating (7) are all positioned at insulation shell (1).
2. a kind of outdoor bus-type current transformer according to claim 1, is characterized in that: resilient coating (7) below is provided with at least one support (8), and support (8) is positioned at insulation shell (1).
3. a kind of outdoor bus-type current transformer according to claim 2, is characterized in that: high-tension shielding layer (5) is aluminium net.
4. a kind of outdoor bus-type current transformer according to claim 2, is characterized in that: described resilient coating (7) is insulation wrinkle ply of paper.
5. a kind of outdoor bus-type current transformer according to claim 1, is characterized in that: it is upper that insulation shell (1) is fixed on mounting panel (9), and mounting panel offers installing hole on (9); Insulation shell (1) is outdoor epoxy resin housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152310.0U CN203799859U (en) | 2014-04-01 | 2014-04-01 | Outdoor bus type current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152310.0U CN203799859U (en) | 2014-04-01 | 2014-04-01 | Outdoor bus type current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203799859U true CN203799859U (en) | 2014-08-27 |
Family
ID=51382054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420152310.0U Expired - Fee Related CN203799859U (en) | 2014-04-01 | 2014-04-01 | Outdoor bus type current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203799859U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783117A (en) * | 2017-02-21 | 2017-05-31 | 杭州零尔电力科技有限公司 | The current transformer of pole-mounted circuit breaker |
| CN107796975A (en) * | 2017-10-23 | 2018-03-13 | 国网安徽省电力公司 | A kind of design method of optical current mutual inductor and vibration-proof structure with vibration-proof structure |
-
2014
- 2014-04-01 CN CN201420152310.0U patent/CN203799859U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783117A (en) * | 2017-02-21 | 2017-05-31 | 杭州零尔电力科技有限公司 | The current transformer of pole-mounted circuit breaker |
| CN107796975A (en) * | 2017-10-23 | 2018-03-13 | 国网安徽省电力公司 | A kind of design method of optical current mutual inductor and vibration-proof structure with vibration-proof structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201741564U (en) | Epoxy-resin vacuum-pouring dry-type current transformer | |
| US12340938B2 (en) | 110 kV three-phase dry-type transformer and assembly method therefor | |
| CN203799857U (en) | Low-partial-discharge high-capacity post type current transformer | |
| CN203799859U (en) | Outdoor bus type current transformer | |
| CN101697314A (en) | Current transformer | |
| CN202110940U (en) | Combined transformer | |
| CN208093344U (en) | A kind of dc circuit breaker energy supply transformer | |
| CN206432135U (en) | Current transformer for gas-insulated switchgear | |
| CN105047381B (en) | A kind of 35kV dry-type air-core reactors | |
| CN204117823U (en) | A kind of ring main unit dedicated potential transformer | |
| CN203799852U (en) | Indoor voltage transformer | |
| CN102005293A (en) | Current transformer | |
| CN202363232U (en) | Dry-type direct current voltage transformer | |
| CN201590322U (en) | Anti-foul voltage transformer with small partial discharge | |
| CN203799858U (en) | Dry type current transformer high in no-load voltage ratio and capacity | |
| CN202564045U (en) | Outdoor dry-type high-tension electricity current transducer | |
| CN201946424U (en) | An indoor dry anti-ferromagnetic resonance three-phase voltage mutual-inductor | |
| CN202758735U (en) | Three-phase integrated type current transformer for intelligent user switch for dividing | |
| CN202258769U (en) | Handstand sulfur hexafluoride (SF6) gas insulation current transformer | |
| CN203562291U (en) | Totally-closed current transformer | |
| CN203055652U (en) | Combined type mutual inductor | |
| CN203871171U (en) | Combined type mutual inductor | |
| CN207800341U (en) | A kind of band busbar wall-penetrating type current transformer | |
| CN203746653U (en) | Novel current mutual inductor | |
| CN203895262U (en) | Outdoor composite insulation current and voltage combined transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 116200, Liaoning City, Dalian province Pulandian Taiping Office Home Industrial Zone Patentee after: Sino Canton electric appliance Limited by Share Ltd Address before: 116200, Liaoning City, Dalian province Pulandian Taiping Office Home Industrial Zone Patentee before: Dalian Zhongguang Instrument Transformer Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20210401 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |