CN106229229A - A kind of protector of current mutual inductor of band arc baffle - Google Patents
A kind of protector of current mutual inductor of band arc baffle Download PDFInfo
- Publication number
- CN106229229A CN106229229A CN201610874883.8A CN201610874883A CN106229229A CN 106229229 A CN106229229 A CN 106229229A CN 201610874883 A CN201610874883 A CN 201610874883A CN 106229229 A CN106229229 A CN 106229229A
- Authority
- CN
- China
- Prior art keywords
- arc baffle
- flange
- transformer
- protector
- mutual inductor
- 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.)
- Granted
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
The present invention relates to the protector of current mutual inductor of a kind of band arc baffle; including arc baffle and for accommodating the transformer housing of current transformer (2); transformer housing is provided with the rectangular aperture for passing for conductor (3); arc baffle includes arc baffle body (1); arc baffle body (1) is provided with rectangular indentation (103); rectangular indentation (103) is surrounded by multiple flange; each flange links into an integrated entity with arc baffle body; arc baffle is fitted in the outside wall surface of transformer housing, and rectangular aperture is correspondingly arranged with rectangular indentation (103).Compared with prior art, it is simple that the present invention has the conductor being adapted to multiple section size, structure and technique, and the advantage such as processing cost is low.
Description
Technical field
The invention belongs to electronic type molded case circuit breaker technical field, be specifically related to the current transformer protection dress of band arc baffle
Put.
Background technology
In the market with the electronic type molded case circuit breaker of current transformer, current transformer is the most all located in one
In individual plastic chamber, then fill silica gel in transformer surrounding, use the mode of silica gel sealing to protect transformer from the external world such as
The impact of the factors such as electric arc.Silica gel takes long enough to solidify completely, and this processes is got up relatively costly.It addition,
If indivedual transformers are when test, it is found to have quality problems, is also not easy to take out and changes.Must entirety scrap.Quality cost
Also can rise.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and the electricity of a kind of band arc baffle is provided
Current transformer protection device.
The purpose of the present invention can be achieved through the following technical solutions:
The protector of current mutual inductor of a kind of band arc baffle, including arc baffle and for accommodating the mutual inductance of current transformer
Device housing, described transformer housing is provided with the rectangular aperture for passing for conductor, and described arc baffle includes that arc baffle is originally
Body, described arc baffle body is provided with rectangular indentation, and described rectangular indentation is surrounded by multiple flange, each flange and arc baffle
Body links into an integrated entity, and described arc baffle is fitted in the outside wall surface of transformer housing, and rectangular aperture and rectangular indentation
It is correspondingly arranged.
As preferred technical scheme, described flange is trapezoidal flange, and described rectangular indentation is by four trapezoidal flange
The upper end surround, go to the bottom and the arc baffle body of each trapezoidal flange link into an integrated entity, and surround rectangle.
As preferred technical scheme, each flange is equipped with labial lamina towards the side of transformer housing, and each flange is with adjacent
The lip portion of flange is stacked in Y type, to the sealing in space between adjacent two flange when flange turns down.
As preferred technical scheme, described labial lamina is elastic labial lamina.
As preferred technical scheme, the orthographic projection in the outside wall surface of transformer housing of the described flange is positioned at rectangle and opens
In the range of Kou.
As preferred technical scheme, described transformer housing is by the transformer case being mutually matched and transformer lid group
Becoming, the sidewall of the transformer case being oppositely arranged with transformer lid is provided with multiple rectangular aperture, described multiple rectangular apertures
Being arranged in order point-blank, described arc baffle body includes multiple baffle plate being sequentially connected with by connecting plate, described
Rectangular indentation is arranged on baffle plate.
As preferred technical scheme, the rectangle that the going to the bottom of the center of described rectangular indentation and each trapezoidal flange surrounds
Center superposition.
As preferred technical scheme, the junction with arc baffle body of going to the bottom of described trapezoidal flange is provided with for side
The impression of auxiliary stairs shape flange turnover.
As preferred technical scheme, each trapezoidal flange is all in isosceles trapezoid shape.
A kind of electronic type molded case circuit breaker, including the protector of current mutual inductor of described band arc baffle.
When through current transformer and arc baffle be small area analysis cage conductor time, the sectional dimension of conductor just with arc blocking
The rectangular indentation of plate equal sized, conductor coordinates with the rectangular indentation of arc baffle, plays the effect of sealing, electric arc and other is different
Thing cannot be introduced into transformer enclosure interior, and current transformer is protected.
When through current transformer and arc baffle be big electric current cage conductor time, the sectional dimension of conductor is more than arc baffle
The sectional dimension of rectangular indentation, but less than the sectional dimension of the rectangle surrounded of going to the bottom of each trapezoidal flange (when at trapezoidal flange
The junction with arc baffle of going to the bottom time impression is set, less than the size of the rectangle that impression is surrounded) time, conductor promotes arc baffle
Rectangle flange, force each trapezoidal flange turn down (impression is set and can play the effect facilitating trapezoidal flange to turn up), make rectangle
Becoming large-sized of breach, until conductor passes completely through.Now the upper end of the trapezoidal flange of arc baffle, coordinates with conductor equally,
Can play sealing function, electric arc and other foreign body and cannot be introduced into transformer enclosure interior, current transformer is protected.
The labial lamina being arranged on each flange cooperates with the labial lamina on adjacent flange, and it is right to play when flange turns down
Space between two adjacent flange carries out the effect sealed.
Compared with prior art, current transformer is protected by the present invention by arranging arc baffle and transformer housing,
The rectangular indentation being arranged in arc baffle, it is possible to according to the conductor of the different cross section size passed, adjusts its sectional dimension, effectively
Current transformer is protected, makes conductor be in sealing state as far as possible all the time with the rectangular aperture of transformer housing, have
Effect prevents electric arc from flying in transformer housing.The present invention adapts in the conductor of multiple section size, structure and technique the simplest
Single, and processing cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention is applied to small area analysis cage conductor；
Fig. 2 is the structural representation that the present invention is applied to big electric current cage conductor；
Fig. 3 is small area analysis cage conductor when passing, the structural representation of the arc baffle of the present invention；
Fig. 4 is big electric current cage conductor when passing, the structural representation of the arc baffle of the present invention；
Fig. 5 is big electric current cage conductor when passing, the plan structure schematic diagram of the arc baffle of the present invention；
Fig. 6 (a) is the side elevational cross-section schematic diagram that the present invention is applied to small area analysis cage conductor, and Fig. 6 (b) is A in Fig. 6 (a)
The close-up schematic view in region；
Fig. 7 is the side elevational cross-section schematic diagram that the present invention is applied to big electric current cage conductor, and Fig. 7 (b) is a-quadrant in Fig. 7 (a)
Close-up schematic view；
Fig. 8 is the internal structure schematic diagram of electronic type molded case circuit breaker.
In figure, 1 is arc baffle body, and 101 is baffle plate, and 102 is connecting plate, and 103 is rectangular indentation, and 104 is impression, 105
For trapezoidal flange, 2 is current transformer, and 3 is conductor, and 4 is transformer case, and 5 is transformer lid, and 6 is circuit breaker base, and 7 are
Circuit breaker operation mechanism, 8 is the protector of current mutual inductor of band arc baffle, and 9 is tripping mechanism, and 10 is intelligent controller.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
The protector of current mutual inductor of a kind of band arc baffle, as shown in Fig. 1～2 and Fig. 6～7, including arc baffle and use
In the transformer housing of receiving current transformer 2, transformer housing is provided with the rectangular aperture for passing, arc baffle for conductor 3
Including arc baffle body 1, described arc baffle body 1 is provided with rectangular indentation 103, and rectangular indentation 103 is surrounded by multiple flange,
Each flange links into an integrated entity with arc baffle body, and described arc baffle is fitted in the outside wall surface of transformer housing, and rectangle
Opening is correspondingly arranged with rectangular indentation 103.
In the present embodiment, preferably flange is trapezoidal flange, and rectangular indentation 103 was surrounded by the upper end of four trapezoidal flange 105,
Go to the bottom and the arc baffle body 1 of each trapezoidal flange 105 link into an integrated entity, and surround rectangle.And the present embodiment is further preferred
In the range of flange orthographic projection in the outside wall surface of transformer housing is positioned at rectangular aperture, facilitate the turnover of flange.
The transformer housing of the present embodiment is made up of the transformer case 4 being mutually matched and transformer lid 5, with transformer lid
The sidewall of the transformer case 4 that 5 are oppositely arranged is provided with multiple rectangular aperture, and the present embodiment is preferably provided with three, three rectangles
Opening is arranged in order point-blank, corresponding with this, and arc baffle body 1 includes that three are sequentially connected with by connecting plate 102
Baffle plate 101, rectangular indentation 103 is arranged on baffle plate 101, as seen in figures 3-5.
The center of the preferred rectangular indentation of the present embodiment 103 is heavy with the center of the rectangle surrounded of going to the bottom of each trapezoidal flange 105
Close.
The preferred each trapezoidal flange 105 of the present embodiment is all in isosceles trapezoid shape, and the angle with waist of going to the bottom is 30～60 °.Go forward side by side
The angle with waist of going to the bottom of the one preferred each trapezoidal flange 105 of step is 45 °.
Go to the bottom and the junction of arc baffle body 1 of trapezoidal flange 105 are provided with the impression for facilitating trapezoidal flange to turn down
104。
In the present embodiment, described flange 105 has elastic deformability at impression 104 so that flange 105 can root
While turning down according to the size of conductor 3, flange 105 is kept to be in close contact with conductor 3.
The arc baffle of the present embodiment uses the thin plate material with certain degree of hardness to make, when through current transformer 2 and gear
Arc plate be small area analysis cage conductor time, as shown in Figure 1, Figure 2 with shown in Fig. 6, the sectional dimension of conductor 3 just with the rectangle of arc baffle
Breach 103 equal sized, conductor 3 coordinates with the rectangular indentation 103 of arc baffle, plays the effect of sealing, electric arc and other is different
Thing cannot be introduced into transformer enclosure interior, and current transformer 2 is protected.
When through current transformer 2 and arc baffle be big electric current cage conductor time, as shown in Fig. 2, Fig. 4, Fig. 5 and Fig. 7,
The sectional dimension of conductor 3 is more than the sectional dimension of the rectangular indentation 103 of arc baffle, but encloses less than each trapezoidal going to the bottom of flange 105
The sectional dimension of the rectangle become is (owing to the present embodiment arranges impression in the junction with arc baffle of going to the bottom of trapezoidal flange 105
104, now, the size of the rectangle that the sectional dimension of conductor 3 is surrounded less than impression 104) time, conductor 3 promotes the square of arc baffle
Shape flange 105, forces each trapezoidal flange to turn down in the rectangular aperture being arranged on transformer housing and (arranges impression 104 permissible
Play the effect facilitating trapezoidal flange 105 to turn down), make becoming large-sized of rectangular indentation 103, until conductor passes completely through.
Now the upper end of the trapezoidal flange of arc baffle, coordinates with conductor equally, can play sealing function, electric arc and other foreign body and cannot enter
Entering transformer enclosure interior, current transformer 2 is protected.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, and difference is, each flange of the present embodiment is towards transformer housing
Side be equipped with labial lamina, and more preferably elastic labial lamina, each flange is stacked in Y type with the lip portion of adjacent flange,
To the sealing in space between adjacent two flange when flange turns down, further enhance sealing effectiveness.
Embodiment 3
A kind of electronic type molded case circuit breaker, as shown in Figure 8, including circuit breaker base 6, is arranged in circuit breaker base 6
Circuit breaker operation mechanism 7, the protector of current mutual inductor 8 of band arc baffle, tripping mechanism 9, intelligent controller 10.Band arc blocking
The protector of current mutual inductor 8 of plate is positioned at the rear end of electronic type molded case circuit breaker, and conductor 3 passes therethrough.When this electronic type
When breaker of plastic casing breaks down, detected the size of current of conductor 3 by the transformer protection device 8 of band arc baffle, signal
Feed back to intelligent controller 10, by computing, assign and instruct to tripping mechanism 9, band pneumatic operating mechanism 7, make electronic type molded case break
Road device separating brake.
Claims (10)
1. the protector of current mutual inductor of a band arc baffle, it is characterised in that include arc baffle and mutual for accommodating electric current
The transformer housing of sensor (2), described transformer housing is provided with the rectangular aperture for passing, described gear for conductor (3)
Arc plate includes that arc baffle body (1), described arc baffle body (1) are provided with rectangular indentation (103), described rectangular indentation
(103) being surrounded by multiple flange, each flange links into an integrated entity with arc baffle body, and described arc baffle is fitted in transformer housing
Outside wall surface on, and rectangular aperture is correspondingly arranged with rectangular indentation (103).
The protector of current mutual inductor of a kind of band arc baffle the most according to claim 1, it is characterised in that described turns over
While be trapezoidal flange, described rectangular indentation (103) was surrounded by the upper end of four trapezoidal flange (105), each trapezoidal flange (105)
Go to the bottom and arc baffle body (1) links into an integrated entity, and surround rectangle.
The protector of current mutual inductor of a kind of band arc baffle the most according to claim 1 and 2, it is characterised in that respectively turn over
While the side towards transformer housing is equipped with labial lamina, each flange is stacked with the lip portion of adjacent flange in Y type, for flange
To the sealing in space between adjacent two flange during turnover.
The protector of current mutual inductor of a kind of band arc baffle the most according to claim 3, it is characterised in that described lip
Plate is elastic labial lamina.
The protector of current mutual inductor of a kind of band arc baffle the most according to claim 1 and 2, it is characterised in that described
Flange orthographic projection in the outside wall surface of transformer housing be positioned at rectangular aperture in the range of.
The protector of current mutual inductor of a kind of band arc baffle the most according to claim 1 and 2, it is characterised in that described
Transformer housing be made up of the transformer case (4) being mutually matched and transformer lid (5), be oppositely arranged with transformer lid (5)
The sidewall of transformer case (4) be provided with multiple rectangular aperture, described multiple rectangular apertures are sequentially arranged in straight line
On, described arc baffle body (1) includes multiple baffle plate (101) being sequentially connected with by connecting plate (102), and described rectangle lacks
Mouth (103) is arranged on baffle plate (101).
The protector of current mutual inductor of a kind of band arc baffle the most according to claim 2, it is characterised in that described square
The center superposition of the rectangle surrounded of going to the bottom of the center of v notch v (103) and each trapezoidal flange (105).
The protector of current mutual inductor of a kind of band arc baffle the most according to claim 2, it is characterised in that described ladder
The junction with arc baffle body (1) of going to the bottom of shape flange (105) is provided with the impression (104) for facilitating trapezoidal flange to turn down.
The protector of current mutual inductor of a kind of band arc baffle the most according to claim 2, it is characterised in that each trapezoidal turn over
Limit (105) is all in isosceles trapezoid shape.
10. an electronic type molded case circuit breaker, it is characterised in that include the electricity of the arbitrary described band arc baffle of claim 1～9
Current transformer protection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610874883.8A CN106229229B (en) | 2016-10-08 | 2016-10-08 | A kind of protector of current mutual inductor with arc baffle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610874883.8A CN106229229B (en) | 2016-10-08 | 2016-10-08 | A kind of protector of current mutual inductor with arc baffle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106229229A true CN106229229A (en) | 2016-12-14 |
| CN106229229B CN106229229B (en) | 2019-05-10 |
Family
ID=58076938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610874883.8A Active CN106229229B (en) | 2016-10-08 | 2016-10-08 | A kind of protector of current mutual inductor with arc baffle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106229229B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4939491A (en) * | 1988-08-01 | 1990-07-03 | Westinghouse Electric Corp. | Combination barrier and auxiliary CT board |
| JP2000235825A (en) * | 1999-02-16 | 2000-08-29 | Hitachi Ltd | Electrode member for vacuum circuit-breaker and manufacture thereof |
| JP2006310030A (en) * | 2005-04-27 | 2006-11-09 | Fuji Electric Fa Components & Systems Co Ltd | Ground leakage breaker |
| CN202816831U (en) * | 2012-04-17 | 2013-03-20 | 上海诺雅克电气有限公司 | A thermal overload relay with current transformers |
| CN104362045A (en) * | 2014-11-13 | 2015-02-18 | 天津市百利电气有限公司 | Intelligent control module for breaker |
| US20150155113A1 (en) * | 2013-12-03 | 2015-06-04 | General Electric Company | Cover assembly for circuit breaker, circuit breaker having the same, and method |
| CN204740992U (en) * | 2015-04-30 | 2015-11-04 | 浙江正泰电器股份有限公司 | Take current transformer's overload relay |
| CN205140893U (en) * | 2015-11-10 | 2016-04-06 | 浙江正泰电器股份有限公司 | Universal type circuit breaker |
| CN206331979U (en) * | 2016-10-08 | 2017-07-14 | 德力西电气有限公司 | A kind of protector of current mutual inductor and electronic type molded case circuit breaker with arc baffle |
-
2016
- 2016-10-08 CN CN201610874883.8A patent/CN106229229B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4939491A (en) * | 1988-08-01 | 1990-07-03 | Westinghouse Electric Corp. | Combination barrier and auxiliary CT board |
| JP2000235825A (en) * | 1999-02-16 | 2000-08-29 | Hitachi Ltd | Electrode member for vacuum circuit-breaker and manufacture thereof |
| JP2006310030A (en) * | 2005-04-27 | 2006-11-09 | Fuji Electric Fa Components & Systems Co Ltd | Ground leakage breaker |
| CN202816831U (en) * | 2012-04-17 | 2013-03-20 | 上海诺雅克电气有限公司 | A thermal overload relay with current transformers |
| US20150155113A1 (en) * | 2013-12-03 | 2015-06-04 | General Electric Company | Cover assembly for circuit breaker, circuit breaker having the same, and method |
| CN104701101A (en) * | 2013-12-03 | 2015-06-10 | 通用电气公司 | Cover assembly for circuit breaker, circuit breaker having the same, and method |
| CN104362045A (en) * | 2014-11-13 | 2015-02-18 | 天津市百利电气有限公司 | Intelligent control module for breaker |
| CN204740992U (en) * | 2015-04-30 | 2015-11-04 | 浙江正泰电器股份有限公司 | Take current transformer's overload relay |
| CN205140893U (en) * | 2015-11-10 | 2016-04-06 | 浙江正泰电器股份有限公司 | Universal type circuit breaker |
| CN206331979U (en) * | 2016-10-08 | 2017-07-14 | 德力西电气有限公司 | A kind of protector of current mutual inductor and electronic type molded case circuit breaker with arc baffle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106229229B (en) | 2019-05-10 |
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