CN112117106A - Combined low-voltage transformer group for preventing fraudulent connection and fraudulent connection - Google Patents
Combined low-voltage transformer group for preventing fraudulent connection and fraudulent connection Download PDFInfo
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- CN112117106A CN112117106A CN202010887342.5A CN202010887342A CN112117106A CN 112117106 A CN112117106 A CN 112117106A CN 202010887342 A CN202010887342 A CN 202010887342A CN 112117106 A CN112117106 A CN 112117106A
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- voltage
- low
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- current loop
- transformer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a combined low-voltage mutual inductor group for preventing fraudulent wiring from being stolen and mistakenly connected, which comprises a low-voltage mutual inductor group, a voltage and current loop leading-out end connecting seat and a movable joint, wherein the combined low-voltage mutual inductor group can reduce the operation time of workers and reduce the labor intensity; the method has wide application range, and can be used for all public distribution transformer and customer-specific transformer users needing to be configured with the current transformer through high-level supply and low-level supply; safety problems caused by various wrong wiring due to low business skills and careless work of workers are avoided, and enterprise operation results are guaranteed from the source; and unnecessary power failure is avoided, and the customer satisfaction is improved.
Description
Technical Field
The invention belongs to the field of power equipment, and particularly relates to a combined low-voltage transformer group for preventing fraudulent connection and an illegal connection.
Background
The Current Transformer (CT) has the function of converting primary Current with larger value into secondary Current with smaller value through a certain transformation ratio for protection, measurement and the like.
In the installation process of the existing low-voltage current transformer group, the current and voltage wiring needs to be distinguished, and due to the fact that the existing current and voltage secondary cables are free of color lines and corresponding current and voltage sections and do not have corresponding voltage and current marks, safety risks are increased in installation work of workers, labor intensity is high, time consumption is long, unnecessary power failure operation can be caused, meanwhile, the installation work needs to be carefully identified, installation efficiency is low, particularly, the service skill levels of metering personnel of power supply enterprises at all levels are uneven, and various wiring errors are easily caused.
Disclosure of Invention
In view of the above, the first aspect of the present invention is to provide a combined low voltage transformer set for preventing fraudulent connection. The problem that exists in the installation of current low voltage current transformer group can be avoided.
The purpose of the first aspect of the invention is realized by the following technical scheme:
the anti-theft and anti-miswiring combined low-voltage transformer comprises
A low-voltage transformer group;
the voltage and current loop leading-out end connecting base is used for leading out a voltage and current loop and then sealing and fixing the voltage and current loop by adopting a voltage and current combined connecting base body;
and the movable connector is used for realizing detachable electrical connection with the voltage and current loop leading-out end connecting seat and realizing the external output of the collected signals of the low-voltage current transformer group.
In particular, the low-voltage transformer group comprises at least three feed-through low-voltage transformers.
Particularly, an adjusting mechanism for adjusting the mutual inductor spacing in a sliding manner according to the different transformer low-voltage outlet pile head spacings is arranged between the low-voltage mutual inductors.
Particularly, the voltage and current loop leading-out end connecting base is a female connector, the arrangement mode of jacks on the connecting base is three rows, the first row is four holes of a voltage loop, the second row is one group of two holes of a current loop, the third row is two groups of four holes of the current loop, and the six current taps respectively correspond to the four voltage loops A, B, C, N and the six current taps of the three groups of current loops a1, a2, b1, b2, c1 and c 2; the movable connector is a male connector, and the arrangement mode of the plug of the movable connector corresponds to the arrangement mode of the jacks on the connecting seat.
Particularly, the upper end of the voltage and current loop leading-out end connecting base is provided with a rain cover, and fastening bolt structures are respectively arranged at the connecting positions of the voltage and current loop leading-out end connecting base and the movable joint.
The invention aims at providing a method for preventing fraudulent use of wiring for a combined low-voltage mutual inductor group, which adopts a combined connection mode of a voltage and current loop leading-out end connecting seat and a movable joint, wherein the connecting seat leads out a voltage and current loop of the low-voltage mutual inductor group and then adopts a voltage and current combined connecting seat body to seal and fix;
and the movable joint is used for realizing detachable electrical connection with the voltage and current loop leading-out end connecting seat and realizing the external output of the collected signals of the low-voltage current transformer group.
Particularly, an adjusting mechanism for adjusting the mutual inductor spacing in a sliding manner according to the different transformer low-voltage outlet pile head spacings is arranged between the low-voltage mutual inductors.
Particularly, the voltage and current loop leading-out end connecting base is a female connector, the arrangement mode of jacks on the connecting base is three rows, the first row is four holes of a voltage loop, the second row is one group of two holes of a current loop, the third row is two groups of four holes of the current loop, and the six current taps respectively correspond to the four voltage loops A, B, C, N and the six current taps of the three groups of current loops a1, a2, b1, b2, c1 and c 2; the movable connector is a male connector, and the arrangement mode of the plug of the movable connector corresponds to the arrangement mode of the jacks on the connecting seat.
Particularly, the upper end of the voltage and current loop leading-out end connecting base is provided with a rain cover, and fastening bolt structures are respectively arranged at the connecting positions of the voltage and current loop leading-out end connecting base and the movable joint.
The invention has the beneficial effects that:
(1) the operation time of workers is reduced, and the labor intensity is reduced; the method has wide application range, and can be used for all public distribution transformer and customer-specific transformer users needing to be configured with the current transformer through high-level supply and low-level supply;
(2) safety problems caused by various wrong wiring due to low business skills and careless work of workers are avoided, and enterprise operation results are guaranteed from the source;
(3) and unnecessary power failure is avoided, and the customer satisfaction is improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the present invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 3 is a schematic diagram of the connecting socket structure of the voltage and current loop output interface of the present invention;
FIG. 4 is a schematic rear view of the voltage and current loop output interface connector socket;
FIG. 5 is a schematic diagram of a stepped structure of the voltage and current loop output interface connector base of the present invention;
fig. 6 is a schematic view of the reverse stepped structure of the movable joint.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are illustrative of the invention only and are not limiting upon the scope of the invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "length", "circumferential", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Example one
As shown in figures 1 and 2, the anti-theft and anti-miswiring combined low-voltage transformer comprises
(1) Low-voltage transformer group 1: the low-voltage transformer group comprises three through low-voltage transformers, and the three transformer groups can be used as a whole to seal water;
(2) voltage and current loop output interface connection socket 2: the connecting seat is arranged at the side position of the base where the low-voltage mutual inductor group is arranged, and the connecting seat is used for leading out a voltage loop and a current loop and then sealing and fixing the voltage loop and the current loop on the original position of a wiring board by adopting a voltage and current combined connecting seat body;
(3) the movable joint: set up in the outside, insert relevant signal collecting device for realize detachable electric connection with voltage and current loop output interface connecting seat, realize the outside output of the collection signal of low-voltage current transformer group.
In this embodiment, an adjusting mechanism for adjusting the mutual inductor spacing in a sliding manner according to the different transformer low-voltage outlet pile head spacings is arranged between the low-voltage mutual inductors. In this embodiment, this adjustment mechanism adopts the slide rail structure, and three low voltage transformer set up on a base, are provided with the slide on the base, and inside three low voltage transformer's bottom design was just embedded into the slide for the slide rail strip with slide looks adaptation, can realize moving along the extending direction of slide. As an important component adapted to the adjusting structure, the adjusting structure further comprises a limiting fixing structure arranged on the base, in this embodiment, bolt fixing is adopted, an adjusting fixing groove is arranged on the side surface of the base, the low-voltage transformer is arranged at the part inside the slideway, a fixing hole is arranged at a position corresponding to the adjusting fixing groove, when the proper distance between the low-voltage transformers is adjusted to adapt to the distance between the low-voltage outlet pile heads of different transformers, the bolts penetrate through the adjusting fixing groove, are screwed into the fixing hole, and are fastened to realize limiting fixing between the low-voltage transformers and the fixing hole.
Of course, the design of the adjusting mechanism may also adopt other structures, for example, a clamping strip structure or a screw rod structure, and the like, and the purpose of adjusting the distance between the low-voltage transformers is within the protection scope of the technical scheme of the present invention as long as the purpose of adjusting the distance between the low-voltage transformers is achieved.
Example two
As shown in fig. 2, the low-voltage transformer group adopted in this embodiment is an integrated design (the whole is that the led signal output is integrally led out, only one output interface connecting seat is needed, but each transformer can be separated, and the mutual distance can be changed on the sliding shaft 3 by sliding, so as to satisfy the distance between the low-voltage outgoing line pile heads of different transformers, that is, the sliding shaft 3 is used to realize the sliding adjustment of the mutual-inductor distance between the low-voltage transformers according to the different transformer low-voltage outgoing line pile head distances), wherein 4 is a working voltage connection, and A, B, C, N is performed in sequence.
In this embodiment, the voltage and current loop output interface connecting socket 2 is a female connector, the arrangement of jacks on the connecting socket is three rows, the first row is four holes of a voltage loop, the second row is one group of two holes of a current loop, and the third row is two groups of four holes of a current loop, which correspond to six current taps of four voltage loops A, B, C, N and three groups of current loops a1, a2, b1, b2, c1 and c2, respectively; as shown in fig. 3, the movable joint is a male joint, and the arrangement of the plugs is arranged corresponding to the arrangement of the jacks on the connecting base. It should be noted that, the arrangement gaps of the four holes of the first row and the four holes of the third row are different, so that confusion of voltage and current plugging is avoided, the situation that the plugs are connected reversely can be avoided, and the operation time is saved.
As shown in fig. 4, the back of the movable joint is provided with a schematic diagram of a jack secondary cable terminal, which can give further prompt to a user and avoid the occurrence of a wrong plug connection phenomenon.
In this embodiment, set female head to sunk structure, its jack all sets up in sunk structure's inside, and be provided with the boss structure with sunk part looks adaptation on the activity joint that corresponds, its plug all sets up on the boss to can realize good grafting firmness when both are connected, avoid the pine to take off, also can realize good dustproof protection simultaneously.
As shown in fig. 5, the further improvement of the present invention is to set the voltage and current loop output interface connection seat 2 as a stepped structure, the structure can be provided with a corresponding jack on each stepped surface through a stepped design, and opposite to it, the movable joint is also set as a corresponding inverse step shape, each outward stepped surface is provided with a corresponding plug, the two can realize electrical connection only with the corresponding jack and plug, that is, the two can only have a unique connection mode, thereby realizing the purpose of never inserting wrong jacks through the improvement of the shape.
Certainly, the cascaded structure in this embodiment can be used in a flexible way, for example also can be with voltage and current loop output interface connecting seat 2 design for reverse cascaded structure, and set up the activity joint into cascaded structure, this kind of design is for former kind of design, more has the advantage in the humidity resistance, because the area of voltage and current loop output interface connecting seat face up is the biggest, can realize the effect of covering to a certain extent, thereby can avoid other jacks of its below to be polluted by outside liquid such as rainwater, certainly if can set the operating surface that is provided with the jack that this biggest cascaded surface stretches out into the inclined plane, its protective effect is more outstanding.
As further improvement, be provided with rain-proof cover in the upper end of voltage and current loop output interface connecting seat 2, can avoid in the use, inside outside rainwater infiltration mutual-inductor, and draw forth end connecting seat and swing joint's junction at voltage and current loop and be provided with fastening bolt structure respectively, fastening bolt structure's inside is provided with seal ring, can further strengthen sealed effect, the guarantee safe operation.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (9)
1. Combination formula low-voltage transformer of wiring is prevented mistake in theftproof, its characterized in that: comprises that
A low-voltage transformer group;
the voltage and current loop leading-out end connecting base is used for leading out a voltage and current loop and then sealing and fixing the voltage and current loop by adopting a voltage and current combined connecting base body;
and the movable connector is used for realizing detachable electrical connection with the voltage and current loop leading-out end connecting seat and realizing the external output of the collected signals of the low-voltage current transformer group.
2. The anti-theft and anti-miswiring combined low-voltage transformer set as claimed in claim 1, wherein: the low-voltage transformer group comprises at least three through low-voltage transformers.
3. The anti-theft and anti-miswiring combined low-voltage transformer set as claimed in claim 2, wherein: and an adjusting mechanism for adjusting the mutual inductor spacing in a sliding manner according to the different transformer low-voltage outlet pile head spacings is arranged between the low-voltage mutual inductors.
4. The anti-theft and anti-miswiring combined low-voltage transformer set as claimed in claim 1, wherein: the voltage and current loop leading-out end connecting base is a female connector, the arrangement mode of jacks on the connecting base is three rows, the first row is four holes of a voltage loop, the second row is a group of two holes of a current loop, and the third row is a group of four holes of a current loop, and the six current taps respectively correspond to four voltage loops A, B, C, N and three groups of current loops a1, a2, b1, b2, c1 and c 2; the movable connector is a male connector, and the arrangement mode of the plug of the movable connector corresponds to the arrangement mode of the jacks on the connecting seat.
5. The anti-theft and anti-miswiring combined low-voltage transformer set as claimed in claim 1, wherein: the upper end of the voltage and current loop leading-out end connecting base is provided with a rainproof cover, and fastening bolt structures are respectively arranged at the connecting positions of the voltage and current loop leading-out end connecting base and the movable joint.
6. A method for preventing fraudulent use of wire connection of combined low-voltage mutual inductor group is characterized by comprising the following steps: the connecting seat is used for leading out a voltage loop and a current loop of the low-voltage transformer group and then sealing and fixing the voltage loop and the current loop by adopting a voltage and current combined connecting seat body;
and the movable joint is used for realizing detachable electrical connection with the voltage and current loop leading-out end connecting seat and realizing the external output of the collected signals of the low-voltage current transformer group.
7. The anti-theft and anti-miswiring combined low-voltage transformer set as claimed in claim 1, wherein: and an adjusting mechanism for adjusting the mutual inductor spacing in a sliding manner according to the different transformer low-voltage outlet pile head spacings is arranged between the low-voltage mutual inductors.
8. The anti-theft and anti-miswiring combined low-voltage transformer set as claimed in claim 1, wherein: the voltage and current loop leading-out end connecting base is a female connector, the arrangement mode of jacks on the connecting base is three rows, the first row is four holes of a voltage loop, the second row is a group of two holes of a current loop, and the third row is a group of four holes of a current loop, and the six current taps respectively correspond to four voltage loops A, B, C, N and three groups of current loops a1, a2, b1, b2, c1 and c 2; the movable connector is a male connector, and the arrangement mode of the plug of the movable connector corresponds to the arrangement mode of the jacks on the connecting seat.
9. The anti-theft and anti-miswiring combined low-voltage transformer set as claimed in claim 1, wherein: the upper end of the voltage and current loop leading-out end connecting base is provided with a rainproof cover, and fastening bolt structures are respectively arranged at the connecting positions of the voltage and current loop leading-out end connecting base and the movable joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010887342.5A CN112117106A (en) | 2020-08-28 | 2020-08-28 | Combined low-voltage transformer group for preventing fraudulent connection and fraudulent connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010887342.5A CN112117106A (en) | 2020-08-28 | 2020-08-28 | Combined low-voltage transformer group for preventing fraudulent connection and fraudulent connection |
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| Publication Number | Publication Date |
|---|---|
| CN112117106A true CN112117106A (en) | 2020-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010887342.5A Pending CN112117106A (en) | 2020-08-28 | 2020-08-28 | Combined low-voltage transformer group for preventing fraudulent connection and fraudulent connection |
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| CN (1) | CN112117106A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203552925U (en) * | 2013-10-31 | 2014-04-16 | 浙江华建电气有限公司 | Electricity larceny prevention transformer |
| CN110446450A (en) * | 2017-03-17 | 2019-11-12 | 国立大学法人大阪大学 | Flexible endoscope and endoscopic system with the flexible endoscope |
| CN209675047U (en) * | 2019-05-06 | 2019-11-22 | 河南卓达电气有限公司 | Box anti-fraudulent use of electricity type current transformer |
| CN210956402U (en) * | 2019-12-13 | 2020-07-07 | 陕西通陆电力工程有限公司 | Splicing type secondary wiring board of voltage transformer |
-
2020
- 2020-08-28 CN CN202010887342.5A patent/CN112117106A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203552925U (en) * | 2013-10-31 | 2014-04-16 | 浙江华建电气有限公司 | Electricity larceny prevention transformer |
| CN110446450A (en) * | 2017-03-17 | 2019-11-12 | 国立大学法人大阪大学 | Flexible endoscope and endoscopic system with the flexible endoscope |
| CN209675047U (en) * | 2019-05-06 | 2019-11-22 | 河南卓达电气有限公司 | Box anti-fraudulent use of electricity type current transformer |
| CN210956402U (en) * | 2019-12-13 | 2020-07-07 | 陕西通陆电力工程有限公司 | Splicing type secondary wiring board of voltage transformer |
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Application publication date: 20201222 |
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