CN203118752U - Low-voltage current transformer - Google Patents
Low-voltage current transformer Download PDFInfo
- Publication number
- CN203118752U CN203118752U CN 201220663020 CN201220663020U CN203118752U CN 203118752 U CN203118752 U CN 203118752U CN 201220663020 CN201220663020 CN 201220663020 CN 201220663020 U CN201220663020 U CN 201220663020U CN 203118752 U CN203118752 U CN 203118752U
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- CN
- China
- Prior art keywords
- housing
- low
- casing
- voltage current
- primary
- 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
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Abstract
The utility model provides a low-voltage current transformer which comprises a casing and a burglarproof cover connected with the top, wherein a primary connector bar is connected in a primary fixing hole through a primary fixing plate matched with the primary fixing hole; the casing and the primary fixing plate are respectively formed by injection molding; and lead sealing holes are formed in a position where the burglarproof cover is connected with the casing. According to the low-voltage current transformer disclosed by the utility model, the casing and the primary fixing plate are formed by injection molding in two dies; under the condition of not replacing the casing, the primary connector bars with different transformation ratios can be replaced by only replacing the primary fixing plates with different specifications; and the primary connector bar is horizontally or vertically sheathed in the primary fixing plate, so that users can select different wiring modes. In addition, the lead sealing holes are formed in the position close to the connected part between the burglarproof cover and the casing; different units carry out lead seal by using their own lead sealing lines; and the casing subjected to lead sealing treatment is not easy to open, so that coils in the transformer are prevented from being replaced or changed and the function of preventing electricity from being stolen is realized.
Description
Technical field
The utility model relates in the low-voltage alternating-current circuit as measurement, metering and the relaying protection Current Transformer of electric current, refers to a kind of low-voltage current mutual inductor especially.
Background technology
At present, the housing that is used for the low-voltage circuit instrument transformer of measurement, metering and used for relay protection generally adopts mould once injection molded.Yet this once injection molded housing makes between fixed head and the housing can not be split, and causes a kind of housing can only fix a kind of primary connection row of specification; In addition, housing does not have the lead sealing measure, and the coil that housing is opened easily and changes or change the inside exists by the hidden danger of stealing.
The utility model content
The utility model proposes a kind of low-voltage current mutual inductor, housing and a fixed head are convenient to split, and can fix the primary connection row of multiple no-load voltage ratio; In addition, can prevent stealing.
The technical solution of the utility model is achieved in that a kind of low-voltage current mutual inductor, comprise housing and the antitheft cover that is connected with the top, be connected to primary connection row by a fixed head with its coupling in the fixing hole of described housing, described housing and a fixed head are injection molded respectively, and the position that described antitheft cover is connected with housing has lead seal hole.
The beneficial effects of the utility model are: housing and a fixed head are divided into two mold injections, can be under the situation of not changing housing, a fixed head that only needs to change different size is the primary connection row of replaceable different no-load voltage ratios just, primary connection row of horizontal or vertically be socketed in fixed head, the user can select the different modes of connection for use; In addition, have lead seal hole near antitheft cover and housing junction, the lead sealing line lead sealing that different units uses according to own unit is handled back casing by lead sealing and is not easy to be opened, and prevents from changing or changing the interior coil of instrument transformer, plays the effect that prevents stealing.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model;
Structural representation when Fig. 2 does not install primary connection row for the utility model.
Among the figure: 1, housing; 2, antitheft cover; 3, fixing hole; 4, fixed head; 5, primary connection row; 6, lead seal hole.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 1 and Fig. 2, a kind of low-voltage current mutual inductor, comprise housing 1 and the antitheft cover 2 that is connected with the top, be connected to primary connection row 5 by a fixed head 4 with its coupling in the fixing hole 3 of described housing 1, described housing 1 and a fixed head 4 are injection molded respectively, and the position that described antitheft cover 2 is connected with housing 1 has lead seal hole 6.Described primary connection row 5 is socketed in fixed head 4, described primary connection is arranged 5 levels or vertical the setting, a described fixed head 4 is with housing 1 clamping or be threaded, described antitheft cover 2 is fixed by hold-down screw and housing 1 top, described housing 1 is fastened by first housing and second housing and forms, described antitheft cover 2 is made by transparent material, and described transparent material is the high polymer transparent material.
The utility model fastens first housing and second housing in use, and is by hold-down screw that housing 1 is fixing with transparent antitheft cover 2, and primary connection is arranged 5 levels or vertically is socketed in fixed head 4, and the user can select the different modes of connection for use; Fixed head 4 is with housing 1 clamping or be threaded.Housing 1 and a fixed head 4 are divided into two mold injections, are convenient to split, can be under the situation of not changing housing 1, and a fixed head 4 that only needs to change different size is the primary connection row 5 of replaceable different no-load voltage ratios just.In addition, the position that antitheft cover 2 is connected with housing 1 has lead seal hole 6, and the lead sealing line lead sealing that different units uses according to own unit is handled back casing 1 by lead sealing and is not easy to be opened, prevent from changing or changing the interior coil of instrument transformer, play the effect that prevents stealing.
Below only be preferred embodiment of the present utility model, in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (8)
1. low-voltage current mutual inductor, comprise housing (1) and the antitheft cover (2) that is connected with its top, it is characterized in that: be connected to primary connection row (5) by the fixed head (4) with its coupling in the fixing hole (3) of described housing (1), described housing (1) and a fixed head (4) are injection molded respectively, and the position that described antitheft cover (2) is connected with housing (1) has lead seal hole (6).
2. a kind of low-voltage current mutual inductor according to claim 1 is characterized in that: described primary connection row (5) is socketed in the fixed head (4).
3. a kind of low-voltage current mutual inductor according to claim 2 is characterized in that: described primary connection row's (5) level or vertical the setting.
4. according to claim 1 or 2 or 3 described a kind of low-voltage current mutual inductors, it is characterized in that: a described fixed head (4) is with housing (1) clamping or be threaded.
5. a kind of low-voltage current mutual inductor according to claim 1, it is characterized in that: described antitheft cover (2) is fixed by hold-down screw and housing (1) top.
6. according to claim 1 or 2 or 5 described a kind of low-voltage current mutual inductors, it is characterized in that: described housing (1) is fastened by first housing and second housing and forms.
7. a kind of low-voltage current mutual inductor according to claim 1, it is characterized in that: described antitheft cover (2) is made by transparent material.
8. a kind of low-voltage current mutual inductor according to claim 7, it is characterized in that: described transparent material is the high polymer transparent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220663020 CN203118752U (en) | 2012-12-04 | 2012-12-04 | Low-voltage current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220663020 CN203118752U (en) | 2012-12-04 | 2012-12-04 | Low-voltage current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203118752U true CN203118752U (en) | 2013-08-07 |
Family
ID=48899074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220663020 Expired - Lifetime CN203118752U (en) | 2012-12-04 | 2012-12-04 | Low-voltage current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203118752U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103996512A (en) * | 2014-06-16 | 2014-08-20 | 重庆华虹仪表有限公司 | Low-voltage current transformer with rotary primary line bank |
| CN108597825A (en) * | 2018-05-16 | 2018-09-28 | 广东电网有限责任公司 | A kind of metering no-load voltage ratio adjustable low-voltage current transformer device |
-
2012
- 2012-12-04 CN CN 201220663020 patent/CN203118752U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103996512A (en) * | 2014-06-16 | 2014-08-20 | 重庆华虹仪表有限公司 | Low-voltage current transformer with rotary primary line bank |
| CN103996512B (en) * | 2014-06-16 | 2016-03-02 | 重庆华虹仪表有限公司 | Primary connection arranges rotatable low-voltage current mutual inductor |
| CN108597825A (en) * | 2018-05-16 | 2018-09-28 | 广东电网有限责任公司 | A kind of metering no-load voltage ratio adjustable low-voltage current transformer device |
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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: 20130807 |