CN201449881U - Three-phase common-body zero-sequence current transformer - Google Patents
Three-phase common-body zero-sequence current transformer Download PDFInfo
- Publication number
- CN201449881U CN201449881U CN200920060481XU CN200920060481U CN201449881U CN 201449881 U CN201449881 U CN 201449881U CN 200920060481X U CN200920060481X U CN 200920060481XU CN 200920060481 U CN200920060481 U CN 200920060481U CN 201449881 U CN201449881 U CN 201449881U
- Authority
- CN
- China
- Prior art keywords
- secondary coil
- phase
- sequence current
- iron core
- current transformer
- 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 - Lifetime
Links
Images
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The utility model discloses a three-phase common-body zero-sequence current transformer, which comprises an iron core, a secondary coil that enwinds the iron core and an insulated shell that is wrapped on the iron core and the secondary coil; the insulated shell is internally provided with a secondary wiring nut; the three-phase common-body zero-sequence current transformer is characterized in that the secondary coil comprises a phase-A secondary coil, a phase-B secondary coil and a phase-C secondary coil; the phase-A coil and the phase-B secondary coil are connected with the phase-C secondary coil in parallel and are connected with the secondary wiring nut by a connecting wire; and the three-phase common-body zero-sequence current transformer has the advantages of compact structure, convenient installation, maintenance-free property, high sensitivity, dirt resistance and the like.
Description
Technical field
The utility model relates to a kind of zero sequence current mutual inductor, particularly a kind of three-phase coenosarc formula zero sequence current mutual inductor.
Background technology
Traditional zero sequence current mutual inductor is single-phase zero sequence current mutual inductor, whenever in actual application, all need to use this zero sequence current mutual inductor mutually, thereby make the occupation of land of electric equipment bigger, product structure is not compact, and every group of single-phase zero sequence current mutual inductor need carry out maintaining respectively, increases the workload of its maintaining, is arranged owing to the three-phase zero sequence current mutual inductor divides simultaneously, its sensitivity meeting is subjected to certain influence, and its anti-fouling effect is relatively poor.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of three-phase coenosarc formula zero sequence current mutual inductor, and this zero sequence current mutual inductor has compact conformation, easy for installation, non-maintaining, high sensitivity, characteristics such as antifouling.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of three-phase coenosarc formula zero sequence current mutual inductor, comprise iron core, be wrapped in the secondary coil on the iron core and be coated on iron core and secondary coil on insulation crust, the secondary connection nut is installed in the insulation crust, it is characterized in that described secondary coil comprises A phase secondary coil, B phase secondary coil and C secondary coil mutually, described A phase secondary coil, B phase secondary coil and C secondary coil parallel connection mutually, and be connected with the secondary connection nut by connecting line.
As the utility model improvement of the technical scheme, described insulation crust is provided with mounting panel, and mounting panel is provided with installing hole.
The beneficial effects of the utility model are: the utility model is a three-phase coenosarc formula zero sequence current mutual inductor, adopt the epoxy resin one-time cast-forming, unshakable in one's determination adopt microcrystallizing alloy production, the utlity model has compact conformation, easy for installation, non-maintaining, high sensitivity, characteristics such as antifouling.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a sectional perspective cross-sectional schematic of the present utility model;
Fig. 2 is a transverse sectional view of the present utility model;
Fig. 3 is a longitudinal sectional view of the present utility model.
Embodiment
With reference to Fig. 1, Fig. 2, Fig. 3, the disclosed a kind of three-phase coenosarc formula zero sequence current mutual inductor of the utility model, comprise unshakable in one's determination 1, be wrapped in the secondary coil 2 on unshakable in one's determination 1 and be coated on unshakable in one's determination 1 and secondary coil 2 on insulation crust 3, secondary connection nut 4 is installed in the insulation crust 3, wherein secondary coil 2 comprises A phase secondary coil 21, B phase secondary coil 22 and C secondary coil 23 mutually, and A phase secondary coil 21, B phase secondary coil 22 and C secondary coil 23 parallel connections mutually, and be connected with secondary connection nut 4 by connecting line 5.
As shown in the figure, insulation crust 3 is provided with mounting panel 6, and mounting panel 6 is provided with installing hole 7, this three-phase coenosarc formula zero sequence current mutual inductor directly can be mounted on the power equipment by this mounting panel 6.
Three-phase common-body zero-sequence current transformer of the present utility model adopts the epoxy resin one-time cast-forming, unshakable in one's determinationly adopts microcrystallizing alloy production, and it has compact conformation, easy for installation, non-maintaining, high sensitivity, the characteristics such as antifouling.
Claims (2)
1. three-phase coenosarc formula zero sequence current mutual inductor, comprise iron core, be wrapped in the secondary coil on the iron core and be coated on iron core and secondary coil on insulation crust, the secondary connection nut is installed in the insulation crust, it is characterized in that described secondary coil comprises A phase secondary coil, B phase secondary coil and C secondary coil mutually, described A phase secondary coil, B phase secondary coil and C secondary coil parallel connection mutually, and be connected with the secondary connection nut by connecting line.
2. a kind of three-phase coenosarc formula zero sequence current mutual inductor according to claim 1 is characterized in that described insulation crust is provided with mounting panel, and mounting panel is provided with installing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920060481XU CN201449881U (en) | 2009-07-10 | 2009-07-10 | Three-phase common-body zero-sequence current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920060481XU CN201449881U (en) | 2009-07-10 | 2009-07-10 | Three-phase common-body zero-sequence current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201449881U true CN201449881U (en) | 2010-05-05 |
Family
ID=42554603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920060481XU Expired - Lifetime CN201449881U (en) | 2009-07-10 | 2009-07-10 | Three-phase common-body zero-sequence current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201449881U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609283A (en) * | 2016-01-15 | 2016-05-25 | 胡妍 | Three-phase zero sequence current transformer |
| CN110571034A (en) * | 2019-09-12 | 2019-12-13 | 湖北大二互科技股份有限公司 | Three-phase current transformer |
-
2009
- 2009-07-10 CN CN200920060481XU patent/CN201449881U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609283A (en) * | 2016-01-15 | 2016-05-25 | 胡妍 | Three-phase zero sequence current transformer |
| CN110571034A (en) * | 2019-09-12 | 2019-12-13 | 湖北大二互科技股份有限公司 | Three-phase current transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201449881U (en) | Three-phase common-body zero-sequence current transformer | |
| CN203387132U (en) | Connecting structure of converter station valve hall wall bushing and tubular bus-bar and connecting fitting thereof | |
| CN203573811U (en) | Outdoor three-phase split type combined transformer | |
| CN202120747U (en) | Current transformer with function of resisting direct current component | |
| CN203225157U (en) | Dry type air-cooled reactor | |
| CN206313190U (en) | A kind of adjustable pitch pipe bus telescoping wire clamp | |
| CN205069304U (en) | Supporting high insulating transformer of power switch cabinet device | |
| CN201708031U (en) | Dry-type transformer specially used for offshore wind power generation | |
| CN204926954U (en) | Many hollow direct current sensillas of aluminium ribbon line duplex winding formula | |
| CN202134394U (en) | Outdoor open-close type current transformer | |
| CN202084887U (en) | Energy-saving electric metal tool damping spacer rod | |
| CN202889835U (en) | Fixed structure of reactive compensation box | |
| CN206585398U (en) | A kind of distribution line anchor support high pressure phase lead loop energy taking device | |
| CN105220933A (en) | A kind of steel tower cross-arm component | |
| CN204947119U (en) | The insulated platform earth connection of improvement | |
| CN204632534U (en) | A kind of pulling plate structure of three-dimensional wound core dry type transformer core clamping and iron core thereof | |
| CN201741825U (en) | Interphase diverting row | |
| CN205116878U (en) | Iron tower cross arm component | |
| CN2901520Y (en) | Enamel insulated aluminium wire power reactor | |
| CN204991379U (en) | Three -phase AC repayment reactor | |
| CN204360913U (en) | Cast-type combination transformer | |
| CN201449882U (en) | Anti-electricity-stealing combined type low-voltage current transformer | |
| CN203674671U (en) | 10kV overhead insulation line based on lightning conductor and lightning conductor support | |
| CN203553071U (en) | Electronic plastic housing circuit breaker | |
| CN218975275U (en) | Totally-enclosed multi-turn type through-wall current transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100505 |