CN202905448U - Master loop fixing structure for zero sequence current transformers - Google Patents
Master loop fixing structure for zero sequence current transformers Download PDFInfo
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- CN202905448U CN202905448U CN 201220592448 CN201220592448U CN202905448U CN 202905448 U CN202905448 U CN 202905448U CN 201220592448 CN201220592448 CN 201220592448 CN 201220592448 U CN201220592448 U CN 201220592448U CN 202905448 U CN202905448 U CN 202905448U
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- zero sequence
- sequence current
- line bank
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Abstract
The utility model relates to a master loop fixing structure for zero sequence current transformers and belongs to the technical field of circuit breakers. The master loop fixing structure comprises a zero sequence current transformer, a pair of external holders, a group of connecting bars, a group of first and second line banks and bolts. The zero sequence current transformer is fixed between the paired external holders. The first line bank corresponds to an outward side of one external holder. The second line bank corresponds to an outward side of the other external holder. The group of connecting bars is connected with the first line bank and the second line bank and penetrates through the external holders and the zero sequence current transformer. The first line bank is provided with first through holes corresponding to the connecting bars. The second line bank is provided with second through holes corresponding to the first through hole. The second through holes is threaded holes. The bolts penetrate through the first through holes, and the connecting bars are connected with the second through holes. The master loop fixing structure has the advantages of reliability in fixing and compact structure.
Description
Technical field
The utility model belongs to the circuit-breaker technical field, is specifically related to a kind of zero sequence current mutual inductor major loop fixed structure
Background technology
Circuit breaker with residual current protecting in low-voltage circuit is the electric elements of commonly using, and this electrical equipment is comprised of Switch main body, leakage tripping device, electronic circuit board and zero sequence current mutual inductor.Zero sequence current mutual inductor is fixed in the galvanic circle of circuit breaker, zero sequence current mutual inductor can gather the fault current signal, and outwards transmits, thereby can detect the fault current of circuit breaker.Simultaneously, under the existing trend toward miniaturization of circuit breaker, effectively dwindle the major loop fixed structure that circuit breaker volume potential necessity asks zero sequence current mutual inductor compact, do not take too many circuit breaker inner space.
In view of above-mentioned, the applicant has made appropriate design, has formed technical scheme described below
Summary of the invention
Task of the present utility model is to provide a kind of major loop fixed structure of fixing the zero sequence current mutual inductor of reliable and compact conformation.
Task of the present utility model is finished like this, a kind of zero sequence current mutual inductor major loop fixed structure, it is characterized in that: comprise zero sequence current mutual inductor, the pair of outer fixed support, one group of pitman, one group of first line bank and one group of second line bank and bolt, zero sequence current mutual inductor is fixed between the pair of outer fixed support, the first line bank is corresponding to one of them the external stability support side outward in the pair of outer fixed support, and the second line bank is corresponding to another external stability support side outward in the pair of outer fixed support, one group of pitman connects the first line bank and the second line bank and runs through described external stability support and zero sequence current mutual inductor, wherein: on the first line bank and in the position corresponding to pitman, offer the first through hole, and on the second line bank and in the position corresponding to the first through hole, offer the second through hole, described the second through hole is screwed hole, described bolt passes described the first through hole, and pitman is connected with described the second through hole.
Another kind of embodiment of the present utility model is: the quantity of described pitman is four.
The technical scheme that the utility model provides is owing to having adopted above-mentioned structure, so that this zero sequence current mutual inductor major loop fixed structure is fixed reliably compact conformation.
Description of drawings
Fig. 1 is example structure figure of the present utility model.
Embodiment
See also Fig. 1, provided a zero sequence current mutual inductor 1, this zero sequence current mutual inductor 1 is fixed between the pair of outer fixed support 2, that is to say by pair of outer fixed support 2 zero sequence current mutual inductor 1 obvolvent is fixed.One group of first line bank 4 is arranged in of one of them external stability support 2(shown position state left side of pair of outer fixed support 2) outward a side, one group of second line bank 5 is arranged in of another external stability support 2(shown position state the right of pair of outer fixed support 2) outward a side, the quantity of one group of pitman 3 has four (but being not limited to four) in the present embodiment, and this pitman 3 is between the first line bank 4 and the second line bank 5 and run through described external stability support 2 and zero sequence current mutual inductor 1.
Shown in figure, on the first line bank 4 and in the position corresponding to pitman 3, offer the first through hole 41, and on the second line bank 5 and in the position corresponding to the first through hole 41, offer the second through hole 51.In the present embodiment, first, second through hole 41,51 quantity respectively are four.
The technical essential of the technical scheme that provides as the utility model, aforesaid the second through hole 51 is screwed hole.Here the applicant need to prove: if change the first through hole 41 into screwed hole, and the second through hole 51 is become unthreaded hole, should be considered as so equivalence and substitute.
The assembling mode of above-described embodiment structure is as follows, with illustrated one group (four) bolt 6 pass successively the first through hole 41, pitman 3, after screw to the second through hole 51 with internal thread.So structure has been confirmed the technique effect described in the superincumbent technique effect of the applicant hurdle fully.If the first through hole 41 is screwed hole, one group of bolt 6 is passing the second through hole 51, pitman 3 rear and the first through hole 41 threaded engagement successively so
Claims (2)
1.
A kind of major loop fixed structure of zero sequence current mutual inductor, it is characterized in that: comprise zero sequence current mutual inductor (1), pair of outer fixed support (2), one group of pitman (3), one group of first line bank (4) and one group of second line bank (5) and bolt (6), zero sequence current mutual inductor (1) is fixed between the pair of outer fixed support (2), the first line bank (4) is corresponding to one of them external stability support (2) side outward in the pair of outer fixed support (2), and the second line bank (5) is corresponding to another external stability support (2) side outward in the pair of outer fixed support (2), one group of pitman (3) connects the first line bank (4) with the second line bank (5) and runs through described external stability support (2) and zero sequence current mutual inductor (1), wherein: upward and in the position corresponding to pitman (3) offer the first through hole (41) at the first line bank (4), and it is upper and offer the second through hole (51) in the position corresponding to the first through hole (41) at the second line bank (5), described the second through hole (51) is screwed hole, described bolt (6) passes described the first through hole (41), and pitman (3) is connected with described the second through hole (51).
2.
The major loop fixed structure of a kind of zero sequence current mutual inductor according to claim 1 is characterized in that: the quantity of described pitman (3) is four
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220592448 CN202905448U (en) | 2012-11-12 | 2012-11-12 | Master loop fixing structure for zero sequence current transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220592448 CN202905448U (en) | 2012-11-12 | 2012-11-12 | Master loop fixing structure for zero sequence current transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202905448U true CN202905448U (en) | 2013-04-24 |
Family
ID=48126086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220592448 Expired - Lifetime CN202905448U (en) | 2012-11-12 | 2012-11-12 | Master loop fixing structure for zero sequence current transformers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202905448U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105474347A (en) * | 2014-02-17 | 2016-04-06 | 富士电机机器制御株式会社 | Leakage current detection unit and leakage current breaker |
| CN105706194A (en) * | 2013-10-17 | 2016-06-22 | Abb股份公司 | Current transformer for low voltage residual current circuit breakers |
-
2012
- 2012-11-12 CN CN 201220592448 patent/CN202905448U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105706194A (en) * | 2013-10-17 | 2016-06-22 | Abb股份公司 | Current transformer for low voltage residual current circuit breakers |
| CN105474347A (en) * | 2014-02-17 | 2016-04-06 | 富士电机机器制御株式会社 | Leakage current detection unit and leakage current breaker |
| CN105474347B (en) * | 2014-02-17 | 2017-12-12 | 富士电机机器制御株式会社 | Detection of electrical leakage unit and RCCB |
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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: 20130424 |