CN216052028U - Device for preventing secondary voltage terminal of voltage transformer from short circuit - Google Patents
Device for preventing secondary voltage terminal of voltage transformer from short circuit Download PDFInfo
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- CN216052028U CN216052028U CN202122606003.8U CN202122606003U CN216052028U CN 216052028 U CN216052028 U CN 216052028U CN 202122606003 U CN202122606003 U CN 202122606003U CN 216052028 U CN216052028 U CN 216052028U
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Abstract
The utility model relates to a voltage terminal protection field provides a prevent device of voltage transformer secondary voltage terminal short circuit, includes: first side panel, front backplate and second side panel. The first side panel is connected with the second side panel through the front guard plate, the included angle between the inner surface of the first side panel and the inner surface of the front guard plate is a right angle, and the included angle between the inner surface of the front guard plate and the inner surface of the second side panel is a right angle. The first side panel includes: first side backplate and insulating baffle, first side backplate and insulating baffle integrated into one piece, first side backplate is connected with the front backplate, and the space between a plurality of insulating baffles forms the wiring window, and insulating baffle can be used to the wall of polyvinyl chloride insulated wire. When the test clamp and the polyvinyl chloride insulated wire penetrate through the wiring window during use, and the ABCN phase voltage and the test clamp are isolated, so that the purpose of preventing the test clamp of a test instrument from short circuit can be realized, and the test clamp is safe and reliable.
Description
Technical Field
The application relates to the field of voltage terminal protection, in particular to a device for preventing a secondary voltage terminal of a voltage transformer from being short-circuited.
Background
The voltage transformer is an indispensable electrical appliance of power transmission and supply systems of power plants, transformer substations and the like. The working principle is that high voltage is converted into 100V standard secondary voltage in proportion for metering, instrument device and relay protection. When an electric energy meter carries out field error detection on the electric energy meter, voltage terminals are used for detecting the voltage of each phase of the ABCN, and the ABCN phases are separated by the voltage terminals in actual production.
In a transformer substation of an electric power system, a conventional voltage terminal generally adopts a one-input one-output or one-input multiple-output structure, and secondary end three-phase voltage of a voltage transformer needs to be accessed when a secondary system is debugged and maintained. When the electric energy meter is inspected on site in a transformer substation, the voltage ABCN phase voltage of a test instrument is connected, the voltage on a voltage terminal in the substation is led out by a section of polyvinyl chloride insulated wire and is connected to a test clamp (the head of the test clamp is an exposed conductor), and then the test clamp is connected to the test instrument for the electric energy meter inspection.
However, because the voltage terminals in the metering screen cabinet are densely arranged, the distance between each phase is only 1mm when the distance between the phases is too short, no insulating partition plate is arranged between each phase terminal, the distance between the outgoing line clips is too short, so that the voltage short circuit between the phases is easily caused, the safety of operators is threatened, the common wiring terminal is only connected with the wiring line without a protection unit, the secondary voltage loop of the transformer substation adopts the open circuit as the main protection, the secondary voltage loop is led out from a small bus at the top of the screen, each electric energy meter is directly connected in parallel after the open circuit, once the voltage loop in a certain electric energy meter is short-circuited, the open circuit at the top of the screen is tripped, all the electric energy meters in the screen cannot collect the voltage, the voltage of all the electric energy meters in the metering screen is lost, and the metering automation system cannot collect the data condition of the electric energy meters in the screen. Therefore, the short circuit problem of the ABCN phase voltage of the measurement voltage terminal needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The present application aims to provide a device for preventing the short circuit of the secondary voltage terminal of a voltage transformer, so as to solve the above technical problems.
An apparatus for preventing a short circuit of a secondary voltage terminal of a voltage transformer, comprising: first side panel, front backplate and second side panel.
The first side panel passes through the front backplate with the second side panel is connected, the contained angle between the internal surface of front backplate and the internal surface of second side panel is the right angle.
The first side panel includes: first side backplate and insulating baffle, first side backplate with insulating baffle integrated into one piece, first side backplate with the front backplate is connected, first side backplate with the front backplate is perpendicular, and is a plurality of space between the insulating baffle forms the wiring window, insulating baffle can be used to the wall of polyvinyl chloride insulated wire.
The front guard plate is provided with a plurality of observation windows, and the number of the observation windows is equal to that of the wiring windows.
The second side panel includes: the handle is connected with the second side lower protection plate through the second side protection plate, and the handle is connected with the front protection plate.
Optionally, the insulating spacer includes: first insulating barrier and second insulating barrier, first insulating barrier and second insulating barrier integrated into one piece, just the surface of first insulating barrier with the surface contained angle of second insulating barrier is the right angle.
Optionally, the width of the insulating spacer (12) is 5 mm.
Optionally, the shape of the observation window (21) is square, rectangle, circle, or regular hexagon.
Optionally, the material of the handle (31) is an insulating material.
Optionally, the handheld handle (31) is further provided with an anti-slip bump.
Optionally, the observation windows (21) correspond to the wiring windows (13) one by one, and are located between the insulating partition plates (12).
According to the above technical solution, the present application provides a device for preventing a secondary voltage terminal of a voltage transformer from short-circuiting, including: the method comprises the following steps: first side panel, front backplate and second side panel. The first side panel passes through the front backplate with the second side panel is connected, the contained angle between the internal surface of front backplate and the internal surface of second side panel is the right angle. The first side panel includes: first side backplate and insulating baffle, first side backplate with insulating baffle integrated into one piece, first side backplate with the front backplate is connected, first side backplate with the front backplate is perpendicular, and is a plurality of space between the insulating baffle forms the wiring window, insulating baffle can be used to the wall of polyvinyl chloride insulated wire. The front guard plate is provided with a plurality of observation windows, and the number of the observation windows is equal to that of the wiring windows. The second side panel includes: the handle is connected with the second side lower protection plate through the second side protection plate, and the handle is connected with the front protection plate.
In practical application, the device for preventing the short circuit of the secondary voltage terminal of the voltage transformer leads out the ABCN phase voltage to be connected to the test clip by a section of polyvinyl chloride insulated wire when in use, then the test clip and the polyvinyl chloride insulated wire penetrate through the wiring window, the insulating partition plate is located between the phase and the phase at the moment, the width of the insulating partition plate is 5mm, the ABCN phase voltage and the test clip are isolated, the purpose of preventing the test clip of a test instrument from being short circuit can be achieved, and the device is safe and reliable.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a diagram illustrating an apparatus for preventing a secondary voltage terminal of a voltage transformer from being short-circuited according to an embodiment of the present disclosure;
fig. 2 is a top view of the device for preventing the short circuit of the secondary voltage terminal of the voltage transformer provided by the embodiment of the present application;
fig. 3 is a side view of a first side panel side of an apparatus for preventing a short circuit of a secondary voltage terminal of a voltage transformer according to an embodiment of the present application;
fig. 4 is a side view of a second side panel side of an apparatus for preventing a short circuit of a secondary voltage terminal of a voltage transformer according to an embodiment of the present application;
in the figure:
1-first side panel, 11-first side guard, 12-insulating barrier, 121-first insulating barrier, 122-second insulating barrier, 13-wiring window, 2-front guard, 21-viewing window, 3-second side panel, 31-handle, 32-second side guard, 33-second side lower guard.
Detailed Description
The technical solutions in the embodiments of the present application will be fully and clearly described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, an apparatus for preventing a secondary voltage terminal of a voltage transformer from being short-circuited is provided in an embodiment of the present application.
Referring to fig. 2, a top view of the device for preventing a short circuit of a secondary voltage terminal of a voltage transformer is provided according to an embodiment of the present application.
Referring to fig. 3, a side view of a first side panel side of an apparatus for preventing a short circuit of a secondary voltage terminal of a voltage transformer is provided according to an embodiment of the present application.
Referring to fig. 4, there is provided a side view of a second side panel side of an apparatus for preventing a short circuit of a secondary voltage terminal of a voltage transformer according to an embodiment of the present application.
In order to solve the problems in the prior art, as shown in fig. 1, 2 and 3, there is provided an apparatus for preventing a secondary voltage terminal of a voltage transformer from being short-circuited, comprising: a first side panel 1, a front guard 2 and a second side panel 3.
The first side panel 1 is connected with the second side panel 3 through the front guard plate 2, and an included angle between the inner surface of the front guard plate 2 and the inner surface of the second side panel 3 is a right angle.
The first side panel 1 comprises: first side backplate 11 and insulating baffle 12, first side backplate 11 with insulating baffle 12 integrated into one piece, first side backplate 11 with 2 connections of front backplate, first side backplate 11 with 2 verticals of front backplate, it is a plurality of space between insulating baffle 12 forms wiring window 13, insulating baffle 12 can be used to the wall of polyvinyl chloride insulated wire.
A plurality of observation windows 21 are arranged on the front protection plate 2, and the number of the observation windows 21 is equal to that of the wiring windows 13.
The second side panel 3 includes: the handle 31 is connected with the second side lower protection plate 33 through the second side protection plate 32, and the handle 31 is connected with the front protection plate 2.
Further, the insulating spacer 12 includes: the insulating structure comprises a first insulating partition plate 121 and a second insulating partition plate 122, wherein the first insulating partition plate 121 and the second insulating partition plate 122 are integrally formed, and an included angle between the outer surface of the first insulating partition plate 121 and the outer surface of the second insulating partition plate 122 is a right angle. The width of the insulating spacer 12 is 5 mm. In the embodiment of the present application, the number of the insulating partition plates 12 is 5, and 4 wiring windows 13 can be partitioned, and the second insulating partition plate 122 can function to support the whole device. In addition, the insulating partition plate 12 is made of an insulating material, the width of the insulating partition plate 12 is 5mm, and the width is wide enough, so that the polyvinyl chloride insulating lead can be fully isolated.
Further, the shape of the observation window 21 is a square, a rectangle, a circle, or a regular hexagon. The observation window 21 can be used for measuring whether the voltage terminal in the staff observation window is normal or not; in addition, it is also possible to measure the ABCN phase voltage values with a multimeter inside the observation window 21, and it should be noted that the observation window 21 is not limited to the shape mentioned in the embodiments of the present application, and may be other observable voltage terminals, and other shapes for measuring the ABCN phase voltage values.
Further, the material of the handle 31 is an insulating material. The insulating material can ensure that the metering personnel do not directly contact the voltage terminal when holding the whole device, and the personal safety of the metering personnel is also ensured due to the use of the insulating material.
Further, the handle 31 is further provided with anti-slip bumps. The anti-skidding convex points can play an anti-skidding role when a metering person takes the handle 31, and the taking-up and putting-down process is more stable.
Further, the observation windows 21 correspond to the wiring windows 13 one to one, and are located between the insulating partition plates 12; the number of the observation windows 21 is the same as that of the wiring windows 13, and the size can be adjusted according to actual operation.
In addition, in order to distinguish the voltages, the observation window 21 and the insulating partition plate 12 corresponding to the ABCN phase voltages are painted with corresponding colors, wherein the observation window 21 and the insulating partition plate 12 corresponding to the phase a are yellow, the phase B is green, the phase C is red, and the phase N is black.
According to the above technical solution, an embodiment of the present application provides a device for preventing a secondary voltage terminal of a voltage transformer from being short-circuited, including: a first side panel 1, a front guard 2 and a second side panel 3. The first side panel 1 is connected with the second side panel 3 through the front guard plate 2, and an included angle between the inner surface of the front guard plate 2 and the inner surface of the second side panel 3 is a right angle. The first side panel 1 comprises: first side backplate 11 and insulating baffle 12, first side backplate 11 with insulating baffle 12 integrated into one piece, first side backplate 11 with 2 connections of front backplate, first side backplate 11 with 2 verticals of front backplate, it is a plurality of space between insulating baffle 12 forms wiring window 13, insulating baffle 12 can be used to the wall of polyvinyl chloride insulated wire. A plurality of observation windows 21 are arranged on the front protection plate 2, and the number of the observation windows 21 is equal to that of the wiring windows 13. The second side panel 3 includes: the handle 31 is connected with the second side lower protection plate 33 through the second side protection plate 32, and the handle 31 is connected with the front protection plate 2.
In practical application, according to the device for preventing the short circuit of the secondary voltage terminal of the voltage transformer, when the device is used, the ABCN phase voltage is led out by a section of polyvinyl chloride insulated wire and connected to the test clamp, then the test clamp and the polyvinyl chloride insulated wire penetrate through the wiring window, the insulating partition plate is located between the phase and the phase, the width of the insulating partition plate is 5mm, the ABCN phase voltage and the test clamp are isolated, the purpose of preventing the test clamp of a test instrument from being short circuit can be achieved, and the device is safe and reliable.
The present application has been described in detail with reference to specific embodiments and illustrative examples, but the description is not intended to limit the application. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the presently disclosed embodiments and implementations thereof without departing from the spirit and scope of the present disclosure, and these fall within the scope of the present disclosure. The protection scope of this application is subject to the appended claims.
Claims (7)
1. An apparatus for preventing a secondary voltage terminal of a voltage transformer from being shorted, comprising: a first side panel (1), a front guard plate (2) and a second side panel (3);
the first side panel (1) is connected with the second side panel (3) through the front guard plate (2), and an included angle between the inner surface of the front guard plate (2) and the inner surface of the second side panel (3) is a right angle;
the first side panel (1) comprises: the cable insulation structure comprises a first side surface protection plate (11) and insulation partition plates (12), wherein the first side surface protection plate (11) and the insulation partition plates (12) are integrally formed, the first side surface protection plate (11) is connected with the front surface protection plate (2), the first side surface protection plate (11) is perpendicular to the front surface protection plate (2), gaps among the insulation partition plates (12) form a wiring window (13), and the insulation partition plates (12) can be used for separating a polyvinyl chloride insulation lead;
a plurality of observation windows (21) are arranged on the front protective plate (2), and the number of the observation windows (21) is equal to that of the wiring windows (13);
the second side panel (3) comprises: the handle (31) is connected with the second side lower protection plate (33) through the second side protection plate (32), and the handle (31) is connected with the front protection plate (2).
2. An arrangement for preventing short-circuiting of the secondary voltage terminals of a voltage transformer according to claim 1, characterised in that said insulating partition (12) comprises: the insulating device comprises a first insulating partition plate (121) and a second insulating partition plate (122), wherein the first insulating partition plate (121) and the second insulating partition plate (122) are integrally formed, and the included angle between the outer surface of the first insulating partition plate (121) and the outer surface of the second insulating partition plate (122) is a right angle.
3. An arrangement for preventing short-circuiting of the secondary voltage terminals of a voltage transformer according to claim 2, characterised in that said insulating spacer (12) has a width of 5 mm.
4. An arrangement for preventing short-circuiting of the secondary voltage terminals of a voltage transformer according to claim 1, characterised in that said observation window (21) has the shape of a square, a rectangle, a circle or a regular hexagon.
5. An arrangement for preventing short-circuiting of the secondary voltage terminals of a voltage transformer according to claim 1, characterised in that said handle (31) is made of an insulating material.
6. An arrangement for preventing short-circuiting of the secondary voltage terminals of a voltage transformer according to claim 5, characterised in that said handle (31) is also provided with anti-slipping projections.
7. A device for preventing the short circuit of the secondary voltage terminal of a voltage transformer according to claim 3, characterized in that said observation windows (21) are in one-to-one correspondence with said wiring windows (13) and are located between said insulating partitions (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122606003.8U CN216052028U (en) | 2021-10-28 | 2021-10-28 | Device for preventing secondary voltage terminal of voltage transformer from short circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122606003.8U CN216052028U (en) | 2021-10-28 | 2021-10-28 | Device for preventing secondary voltage terminal of voltage transformer from short circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216052028U true CN216052028U (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122606003.8U Active CN216052028U (en) | 2021-10-28 | 2021-10-28 | Device for preventing secondary voltage terminal of voltage transformer from short circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216052028U (en) |
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2021
- 2021-10-28 CN CN202122606003.8U patent/CN216052028U/en active Active
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