CN202495332U - Zero sequence current transformer - Google Patents
Zero sequence current transformer Download PDFInfo
- Publication number
- CN202495332U CN202495332U CN2012200524357U CN201220052435U CN202495332U CN 202495332 U CN202495332 U CN 202495332U CN 2012200524357 U CN2012200524357 U CN 2012200524357U CN 201220052435 U CN201220052435 U CN 201220052435U CN 202495332 U CN202495332 U CN 202495332U
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- CN
- China
- Prior art keywords
- zero sequence
- sequence current
- current transformer
- mutual inductor
- current mutual
- 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
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Abstract
The utility model relates to a zero sequence current transformer and belongs to the field of high-voltage switches. The zero sequence current transformer is applied to an outdoor 12kv switch and comprises a zero sequence current transformer coil. A support frame and a shell which are made of insulated materials are arranged outside the zero sequence current transformer coil. Three breaker primary outlet holes are disposed in the middle of the support frame, and a secondary lead pipe is led out from the outer side of the shell. Three-phase current of the zero sequence current transformer coil passes through the three breaker primary outlet holes, and induced secondary signals are led out through the secondary lead pipe. The zero sequence current transformer has the advantages of being three-phase integrated, simple and convenient to install, using one coil, being high in accuracy and being completely adapted to outdoor work conditions.
Description
Technical field
The utility model is a kind of zero sequence current mutual inductor, belongs to the high-voltage switch gear field, is applicable to outdoor switch.
Background technology
At present, the zero sequence current mutual inductor of known outdoor high voltage circuit breaker generally is contained in two sides of circuit breaker, and such zero sequence current mutual inductor response time is long, assembling bothers, the shortcoming of low precision, has influenced the result of use of zero sequence current mutual inductor.
Summary of the invention
The purpose of the utility model is exactly to above-mentioned shortcoming, and the zero sequence current mutual inductor that a kind of precision is high, easy to assembly, reliability is high is provided.
The technical scheme of the utility model is: a kind of zero sequence current mutual inductor; It is characterized in that: it comprises a zero sequence current mutual inductor coil; Described zero sequence current mutual inductor coil outside is provided with the bracing frame and the housing of insulating material, in the middle of bracing frame, is provided with wire hole of three circuit breakers, and hull outside is drawn a secondary lead wires pipe; The three-phase current of the described zero sequence current mutual inductor coil wire hole of three circuit breakers of flowing through, the secondary singal of induction is drawn through the secondary lead wires pipe.
The beneficial effect of the utility model is: have three-phase integrated, simple installation, winding of use, the instrument transformer precision is high, adapt to the advantage of outwork condition fully.
Description of drawings
Below in conjunction with accompanying drawing to the utility model further explain.
Fig. 1 is the zero sequence current mutual inductor coil cutaway view of the utility model.
Fig. 2 is the structure chart of the zero sequence current mutual inductor of the utility model.
Wherein: 1. zero sequence current mutual inductor coil 2. bracing frames 3,4. wire holes of housing, 5. secondary lead wires pipes.
Embodiment
Like Fig. 1, shown in 2, a kind of zero sequence current mutual inductor is characterized in that: it comprises a zero sequence current mutual inductor coil 1; Described zero sequence current mutual inductor coil 1 outside is provided with the bracing frame 2 and housing 3 of insulating material; In the middle of bracing frame 2, be provided with wire hole 4 of three circuit breakers, hull outside is drawn a secondary lead wires pipe 5, the three-phase current of the zero sequence current mutual inductor coil of the stating wire hole 4 of three circuit breakers of flowing through; The secondary singal of induction is drawn through secondary lead wires pipe 5
Preferable technical scheme is: zero sequence current mutual inductor secondary lead wires pipe 5 is drawn from below.
Zero sequence current mutual inductor is installed in the circuit breaker outside; Be positioned at the middle part of insulating material; An outlet of circuit breaker is passed in the middle of zero sequence current mutual inductor; Outlet terminal of circuit breaker is contained in the zero sequence current mutual inductor outside, and the zero sequence current mutual inductor secondary lead wires gets into downwards in the metal box of circuit breaker base.
Claims (1)
1. zero sequence current mutual inductor; It is characterized in that: it comprises a zero sequence current mutual inductor coil; Described zero sequence current mutual inductor coil outside is provided with the bracing frame and the housing of insulating material, in the middle of bracing frame, is provided with wire hole of three circuit breakers, and hull outside is drawn a secondary lead wires pipe; The three-phase current of the described zero sequence current mutual inductor coil wire hole of three circuit breakers of flowing through, the secondary singal of induction is drawn through the secondary lead wires pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200524357U CN202495332U (en) | 2012-02-18 | 2012-02-18 | Zero sequence current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200524357U CN202495332U (en) | 2012-02-18 | 2012-02-18 | Zero sequence current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202495332U true CN202495332U (en) | 2012-10-17 |
Family
ID=47001545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200524357U Expired - Fee Related CN202495332U (en) | 2012-02-18 | 2012-02-18 | Zero sequence current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202495332U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653340A (en) * | 2016-12-16 | 2017-05-10 | 北京瑞奇恩互感器设备有限公司 | Pole-mounted current sensor |
-
2012
- 2012-02-18 CN CN2012200524357U patent/CN202495332U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653340A (en) * | 2016-12-16 | 2017-05-10 | 北京瑞奇恩互感器设备有限公司 | Pole-mounted current sensor |
| CN106653340B (en) * | 2016-12-16 | 2019-02-19 | 北京瑞奇恩互感器设备有限公司 | Current sensor on column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20150218 |
|
| EXPY | Termination of patent right or utility model |