CN112730903B - A supplementary erection equipment of current transformer for metering device is last - Google Patents
A supplementary erection equipment of current transformer for metering device is last Download PDFInfo
- Publication number
- CN112730903B CN112730903B CN202011466534.5A CN202011466534A CN112730903B CN 112730903 B CN112730903 B CN 112730903B CN 202011466534 A CN202011466534 A CN 202011466534A CN 112730903 B CN112730903 B CN 112730903B
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- China
- Prior art keywords
- box body
- current transformer
- main box
- guide rail
- guide
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
Abstract
The invention discloses auxiliary installation equipment for a current transformer on a metering device, belonging to the technical field of electric power operation and maintenance equipment devices; the device comprises a rectangular main box body which is hollow inside and has an opening structure at the front side; more than three groups of guide through holes are arranged on the opposite side walls of the main box body, and a guide rail is also arranged on the inner bottom surface of the main box body; the auxiliary positioning block is movably arranged on the guide rail; the current transformer is detachably arranged on the auxiliary positioning block; the primary lead row penetrates through the inner ring of the iron core on the current transformer and is arranged opposite to the guide through hole, and the primary lead row is connected with the guide through hole through a connecting clamp pipe; the invention effectively solves the problem that the current transformer cannot be conveniently and quickly installed in the mechanism box when being installed, and the working efficiency is influenced.
Description
Technical Field
The invention relates to the technical field of electric power operation and maintenance equipment devices, in particular to auxiliary installation equipment for a current transformer on a metering device.
Background
A current transformer is often used as a test piece of a power trade settlement meter box in a power grid system, and a three-phase four-wire wiring structure is mostly adopted as a metering standard for conventional domestic power and industrial power; although the working principle of the current transformer is relatively simple, the current transformers commonly used in China have differences in structure and size due to different execution standards of manufacturers and various places; on the other hand, the current transformer as power equipment cannot be directly installed in an external environment, and needs to be set by means of a mechanism box, and a load lead is generally directly arranged in a hollow box body after passing through the current transformer, so that the mechanism box body with the structure obviously cannot meet installation requirements in various actual environments; therefore, the mechanism box with a specified size can be obtained through measurement processing in advance during specific installation; the investment time for equipment installation is greatly delayed, and the production and processing are not facilitated; on this basis, a mechanism case that can adapt to multiple environmental requirement and satisfy various current transformer installations is needed urgently at present.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a current transformer auxiliary erection equipment for metering device to solve and can not realize its convenient quick installation in the mechanism case when installing current transformer, influence work efficiency's problem.
In order to solve the problems, the invention provides the following technical scheme:
a current transformer auxiliary mounting device used on a metering device; the device comprises a rectangular main box body which is hollow inside and has an opening structure at the front side; more than three groups of guide through holes are arranged on the opposite side walls of the main box body, and a guide rail is also arranged on the inner bottom surface of the main box body; the auxiliary positioning block is movably arranged on the guide rail; the current transformer is detachably arranged on the auxiliary positioning block; the primary wire row penetrates through the inner ring of the iron core on the current transformer and is arranged opposite to the guide through hole, and the primary wire row is connected with the guide through hole through a connecting clamp pipe.
Preferably, the guide rail is rotatably installed at an inner wall of the main case; a pair of fixed rail clamping pieces are respectively arranged in the up-down direction and the left-right direction of the inner wall of the main box body, and two ends of the guide rail are detachably arranged on the fixed rail clamping pieces.
Preferably, an L-shaped groove plate is further arranged on the guide rail; the other end of the L-shaped groove plate is of a telescopic structure, and a negative pressure sucking disc is further mounted at the telescopic end head of the other end; the L-shaped groove plate is detachably arranged on the inner wall of the main box body through the negative pressure sucker; the secondary sampling lead wire led out from the current transformer is mounted on the L-shaped groove plate through a cable tie.
Furthermore, the guide rail is of a straight rail structure with an I-shaped cross section, one side of the guide rail is attached to the inner bottom of the main box body, and the other side of the guide rail is used for mounting an auxiliary positioning block; a strip-shaped hole is formed in the middle of the guide rail, and one end of the L-shaped groove plate penetrates through the strip-shaped hole and then is clamped between the guide rail and the inner bottom of the main box body.
Preferably, the length and the width of the auxiliary positioning block do not exceed the size of the current transformer.
Preferably, the guide through holes on the main box body are arranged in a honeycomb shape; the outer side wall of the main box body is provided with a step; the guide through holes are correspondingly arranged at the positions of the steps, and the fin ventilating plates are detachably arranged on the steps.
Furthermore, a reinforcing rib plate is further arranged at the step of the outer side wall of the main box body, and the fin ventilating plate is pressed on the reinforcing rib plate for positioning and installation.
Preferably, the connecting clamp pipe comprises a hollow chuck detachably mounted on the guide through hole; a Z-shaped connecting rod is rotatably arranged at one end of the hollow chuck inserted into the inner side of the main box body; the other end of the Z-shaped connecting rod is provided with an ear plate; the end of the primary conductor row is mounted on the lug plate through a screw assembly.
Furthermore, the hollow chuck and the Z-shaped connecting rod are also covered with an insulating and heat-insulating filling layer.
Advantageous effects of the invention
The invention designs an installation device which can be convenient for various current transformers of different types to be used in a matching way and can be used facing different installation areas, and the installation device can be installed and used in different environments by respectively arranging guide through holes on the periphery of a box body and simultaneously utilizing a rotatable guide rail structure to realize the installation of the current transformers along different directions; the current transformers are installed by arranging the slidable auxiliary positioning blocks on the guide rails, so that the distance between the current transformers is changed, the current transformers of different models and sizes can be matched by matching with the guide through holes on the peripheral sides, the current transformers are easy to operate and use, and the current transformers cannot be conveniently and quickly installed in a mechanism box when being installed, so that the problem of influencing the working efficiency is solved.
Drawings
FIG. 1 is a schematic view of the apparatus of the present invention;
FIG. 2 is a schematic structural view of the finned ventilation board of the present embodiment;
FIG. 3 is a schematic view showing the fitting between the L-shaped groove plate and the guide rail in the present embodiment;
description of reference numerals: 1. the main box body 1A, the guide through hole, 2, the guide rail, 3, the auxiliary positioning block, 4, the current transformer, 5, the primary wire row, 6, the connecting clamp pipe, 6A, the hollow chuck, 6B, Z shape connecting rod, 6C, the otic placode, 7, the fixed rail fastener, 8, L shape frid, 9, the fin ventilating board.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments:
example (b):
referring to fig. 1, the present embodiment provides a current transformer auxiliary mounting apparatus for use on a metering device; the device comprises a rectangular main box body 1 which is hollow inside and has an opening structure at the front side; more than three groups of guide through holes 1A are arranged on the opposite side wall of the main box body 1, and a guide rail 2 is also arranged on the inner bottom surface of the main box body 1; the auxiliary positioning block 3 is movably arranged on the guide rail 2; the current transformer 4 is detachably arranged on the auxiliary positioning block 3; the primary lead wire row 5 penetrates through the inner ring of the iron core on the current transformer 4 and is arranged opposite to the guide through hole 1A, and the primary lead wire row 5 is connected with the guide through hole 1A through a connecting clamp pipe 6. The main box 1 used in this embodiment is a rectangular structure with different lengths and widths.
The guide rail 2 is rotatably arranged on the inner wall of the main box body 1; a pair of rail fixing clamping pieces 7 are respectively arranged in the up-down direction and the left-right direction of the inner wall of the main box body 1, and two ends of the guide rail 2 are detachably arranged on the rail fixing clamping pieces 7.
An L-shaped groove plate 8 is also arranged on the guide rail 2; the other end of the L-shaped groove plate 8 is of a telescopic structure, and a negative pressure sucking disc is further mounted at the telescopic end head position of the other end; the L-shaped groove plate is detachably arranged on the inner wall of the main box body 1 through the negative pressure sucker; the secondary sampling lead wire led out from the current transformer 4 is mounted on an L-shaped trough plate 8 through a cable tie. The design of L type frid 8 is for laying the secondary sampling wire is assisted, considers the structural feature of box, needs set up L type frid 8 into the telescopic structure and satisfy its other end negative pressure sucking disc and correspond being connected of box inside wall.
The guide rail 2 is a straight rail structure with an I-shaped cross section, one side of the guide rail 2 is attached to the inner bottom of the main box body 1, and the other side of the guide rail 2 is used for installing an auxiliary positioning block 3; a strip-shaped hole is formed in the middle of the guide rail 2, and one end of the L-shaped groove plate 8 penetrates through the strip-shaped hole and then is clamped between the guide rail 2 and the inner bottom of the main box body 1.
The length and the width of the auxiliary positioning block 3 do not exceed the size of the current transformer 4.
The guide through holes 1A on the main box body 1 are arranged in a honeycomb shape; the outer side wall of the main box body 1 is provided with a step; the guide through holes 1A are correspondingly arranged at the positions of the steps, and fin ventilating plates 9 are detachably arranged on the steps. Referring to fig. 2, a reinforcing rib plate is further disposed at a step of the outer side wall of the main box 1, and the fin ventilation plate 9 is pressed on the reinforcing rib plate for positioning and installation. In this embodiment, the sizes of the steps formed on the four side end faces of the main box body 1 are the same, and the corresponding fin ventilation plates 9 are designed in pairs, so that the detachable fin ventilation plates 9 can ensure the ventilation of the inside and the outside of the main box body 1 while playing a certain dustproof effect.
The connecting clamp pipe 6 comprises a hollow chuck 6A which is detachably arranged on the guide through hole 1A; a Z-shaped connecting rod 6B is rotatably arranged at one end of the hollow chuck 6A inserted into the inner side of the main box body 1; the other end of the Z-shaped connecting rod 6B is provided with an ear plate 6C; the end of the primary wire row 5 is mounted on the lug 6C by a screw assembly.
And the hollow chuck 6A and the Z-shaped connecting rod 6B are also covered with an insulating and heat-insulating filling layer. The filling layer in this embodiment may be made of a material such as ceramic soil, and the purpose of the filling layer is to protect the connecting clamp pipe and to achieve an insulating and heat-insulating effect.
When the device is used, the placement position of the main box body is adjusted according to the environment size, then the rotation angle of the guide rail 2 is adjusted according to the orientation of the three wires with loads and the grounding wire, and then the three-phase wires are more easily connected to the main box body 1 and penetrate through the guide rail; sequentially placing an L-shaped groove plate on the guide rail 2 according to the sequence of a group of auxiliary positioning blocks, a current transformer and the L-shaped groove plate; then, selecting a proper guide through hole 1A according to the phase sequence and the position of the three wires for insertion, fixedly installing an auxiliary positioning block 3 and a current transformer 4 on a guide rail 2 one by one, and enabling a primary wire row 5 to penetrate through a copper core of the current transformer 4; then adjusting the structure of the connecting clamp tube 6 to enable two ends of the connecting clamp tube to be respectively arranged on the three wires and the primary wire row 5; and (3) pressing the guide rail 2 on the inner side wall of the main box body 1 to fix the L-shaped groove plate, and laying a secondary sampling lead led out from the current transformer 4 along the L-shaped groove plate to finally finish the installation of the device.
Claims (7)
1. A current transformer auxiliary installation device used on a metering device comprises a rectangular main box body (1) which is hollow inside and has an opening structure at the front side; the method is characterized in that: more than three groups of guide through holes (1A) are arranged on the opposite side wall of the main box body (1), and a guide rail (2) is also arranged on the inner bottom surface of the main box body (1); the auxiliary positioning block (3) is movably arranged on the guide rail (2); the current transformer (4) is detachably arranged on the auxiliary positioning block (3); the primary lead row (5) penetrates through the inner ring of the iron core on the current transformer (4) and is arranged opposite to the guide through hole (1A), and the primary lead row (5) is connected with the guide through hole (1A) through a connecting clamp pipe (6); the guide rail (2) is rotatably arranged on the inner wall of the main box body (1); a pair of rail fixing clamping pieces (7) are respectively arranged in the up-down direction and the left-right direction of the inner wall of the main box body (1), and two ends of the guide rail (2) are detachably arranged on the rail fixing clamping pieces (7); an L-shaped groove plate (8) is also arranged on the guide rail (2); the other end of the L-shaped groove plate (8) is of a telescopic structure, and a negative pressure suction disc is further mounted at the telescopic end head of the other end; the L-shaped groove plate is detachably arranged on the inner wall of the main box body (1) through the negative pressure sucker; a secondary sampling lead led out from the current transformer (4) is mounted on an L-shaped groove plate (8) through a binding belt; the guide rail (2) is of a straight rail structure with an I-shaped cross section, the middle part of the guide rail (2) is hinged and arranged on one side of the guide rail (2) and is attached to the inner bottom of the main box body (1), and the other side of the guide rail (2) is used for installing an auxiliary positioning block (3); a strip-shaped hole is formed in the middle of the guide rail (2), and one end of the L-shaped groove plate (8) penetrates through the strip-shaped hole and then is clamped between the guide rail (2) and the inner bottom of the main box body (1).
2. The auxiliary installation device of the current transformer for the metering device as claimed in claim 1, wherein: the length and the width of the auxiliary positioning block (3) do not exceed the size of the current transformer (4).
3. The auxiliary installation device of the current transformer for the metering device as claimed in claim 1, wherein: the guide through holes (1A) on the main box body (1) are arranged in a honeycomb shape; the outer side wall of the main box body (1) is provided with a step; the guide through holes (1A) are correspondingly arranged at the positions of the steps, and fin ventilating plates (9) are detachably arranged on the steps.
4. The auxiliary installation device of the current transformer for the metering device as claimed in claim 3, wherein: the step of the outer side wall of the main box body (1) is also provided with a reinforcing rib plate, and the fin ventilating plate (9) is pressed on the reinforcing rib plate for positioning and installation.
5. The auxiliary mounting device for the current transformer on the metering device as claimed in claim 1, wherein: the connecting clamp pipe (6) comprises a hollow clamp head (6A) which is detachably arranged on the guide through hole (1A); a Z-shaped connecting rod (6B) is rotatably arranged at one end of the hollow chuck (6A) inserted into the inner side of the main box body (1); the other end of the Z-shaped connecting rod (6B) is provided with an ear plate (6C); the end of the primary wire row (5) is mounted on the lug plate (6C) through a screw assembly.
6. The auxiliary installation device of the current transformer for the metering device as claimed in claim 5, wherein: the hollow chuck (6A) and the Z-shaped connecting rod (6B) are also covered with an insulating and heat-insulating filling layer.
7. The auxiliary mounting device for the current transformer on the metering device as claimed in claim 1, wherein: a movable clamp used for fixing the grounding wire is further arranged in the main box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011466534.5A CN112730903B (en) | 2020-12-14 | 2020-12-14 | A supplementary erection equipment of current transformer for metering device is last |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011466534.5A CN112730903B (en) | 2020-12-14 | 2020-12-14 | A supplementary erection equipment of current transformer for metering device is last |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112730903A CN112730903A (en) | 2021-04-30 |
| CN112730903B true CN112730903B (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011466534.5A Active CN112730903B (en) | 2020-12-14 | 2020-12-14 | A supplementary erection equipment of current transformer for metering device is last |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112730903B (en) |
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| JP2002071727A (en) * | 2000-08-25 | 2002-03-12 | Osaka Gas Co Ltd | Current detector using split current transformer for high voltage |
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| CN209167407U (en) * | 2018-11-24 | 2019-07-26 | 北京华强诚信电器有限公司 | A kind of direct current instrument transformer |
| CN110718363A (en) * | 2019-11-13 | 2020-01-21 | 浙江全瑞本科技股份有限公司 | Fixing device of current transformer |
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| DE202009018967U1 (en) * | 2009-12-17 | 2015-01-15 | Phoenix Contact Gmbh & Co. Kg | Device for releasably securing a conductor to a current transformer housing |
| CN208026777U (en) * | 2018-04-09 | 2018-10-30 | 江苏新宇能电力科技有限公司 | A kind of fixed installation structure of the current transformer of electric energy meter |
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2020
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|---|---|---|---|---|
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| CN211788484U (en) * | 2020-03-11 | 2020-10-27 | 苏州市精益开关有限公司 | Fixing base for current transformer |
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| CN112730903A (en) | 2021-04-30 |
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