CN212722990U - Detection switching device for power distribution terminal - Google Patents
Detection switching device for power distribution terminal Download PDFInfo
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- CN212722990U CN212722990U CN202021459503.2U CN202021459503U CN212722990U CN 212722990 U CN212722990 U CN 212722990U CN 202021459503 U CN202021459503 U CN 202021459503U CN 212722990 U CN212722990 U CN 212722990U
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Abstract
The utility model discloses a detection switching device for a power distribution terminal, which comprises a cable and a shell; one end of the cable is connected with a banana plug, and the banana plug is used for connecting test equipment; the other end of the cable is connected with an aviation plug; the shell is provided with a first aviation socket, a second aviation socket, a switch socket and a change-over switch; a terminal row is arranged in the shell. The utility model discloses a loading and unloading of test cable are accomplished to a plug, are showing and are improving work efficiency.
Description
Technical Field
The utility model relates to a detect used switching device of distribution terminal belongs to electric power secondary equipment test field.
Background
The signal interface of the common electric power test equipment (such as an automatic tester, a relay protection instrument, a power source and the like) is usually a 4mm banana head socket, and banana head type jacks of the common electric power test equipment correspond to input and output signals one by one. At present, signal interfaces of power distribution terminal equipment have national network standard specifications and adopt a standard defined aerial plug wiring mode.
When connecting the signal line before the test, test cable one end is connected through inserting by plane with distribution terminal, and the test cable other end is connected with test equipment and mainly has two kinds of modes: 1. welding core wires in the cable to the banana plug at the other end of the test cable, and respectively inserting the core wires into corresponding banana jacks on the test equipment according to signal definition; 2. and (3) connecting a signal of the test equipment to one side of the terminal strip through a signal line with two banana heads, and inserting the banana plug on the test cable in the method 1 into the other side of the terminal strip.
The two methods both need to insert banana heads for multiple times, the whole wiring process is complicated and time-consuming, and unskilled operators are easy to connect wrong wires to bring safety hidden dangers and test accuracy; this type of wiring through banana plugs affects the efficiency of operation when testing or servicing power distribution terminals outdoors.
SUMMERY OF THE UTILITY MODEL
The utility model provides a distribution terminal detects switching device, its purpose: the test cable is assembled and disassembled through one-time plugging, and the working efficiency is improved.
The utility model discloses technical scheme as follows:
a detection switching device for a power distribution terminal comprises a cable and a shell;
one end of the cable is connected with a banana plug, and the banana plug is used for connecting test equipment; the other end of the cable is connected with an aviation plug;
the shell is provided with a first aviation socket, a second aviation socket, a switch socket and a change-over switch; a terminal row is arranged in the shell;
the first aviation socket is used for being connected with an aviation plug;
the second aviation socket is used for connecting a power distribution terminal;
in the shell body: the signal pins of the first aviation socket are connected with the signal pins of the second aviation socket through the terminal strip; the power pin of the first aviation socket is connected with the first input end of the change-over switch through the terminal strip; the switch socket is connected with a second input end of the change-over switch through the terminal strip, and an output end of the change-over switch is connected with a power pin of the second aviation socket.
As a further improvement of the device: the shell is also provided with a power socket, and the power socket is connected with the switch socket in the shell.
As a further improvement of the device: the shell is internally provided with a guide rail, and the terminal strip is arranged on the guide rail.
As a further improvement of the device: the first aviation socket and the switch socket are located on the front side of the shell, the second aviation socket is located on the rear side of the shell, and the knob of the change-over switch is located on the top of the shell.
Compared with the prior art, the utility model discloses following beneficial effect has: (1) the utility model converts a plurality of jacks of the output signal of the test instrument into an aviation plug, shortens the actual wiring time before testing, improves the working efficiency, is particularly suitable for the requirement of outdoor test maintenance operation on time, can avoid wiring errors and ensures the safety of personnel and equipment; (2) the wiring sequence can be flexibly adjusted through the terminal strip; (3) through the change-over switch, the power supply output by the test equipment or the externally connected 220V power supply can be selectively supplied to the power distribution terminal, so that the test device is suitable for different test scenes; (4) the power socket is arranged, and power can be supplied to other equipment at the same time.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a schematic view of the internal connection of the present invention.
Detailed Description
The technical scheme of the utility model is explained in detail below with the attached drawings:
referring to fig. 1 and 2, a power distribution terminal detection switching device includes a cable 1 and a housing 2.
One end of the cable 1 is connected with a banana plug 10, and the banana plug 10 is used for connecting test equipment; the other end of the cable 1 is connected with an aviation plug 9;
and a first aviation socket 3, a second aviation socket 5, a switch socket 6, a power socket 8 and a change-over switch 4 are mounted on the shell 2. A terminal block 7 is mounted in the housing 2 via guide rails.
Outside the housing 2: the first aviation socket 3, the power socket 8 and the switch socket 6 are located on the front side of the shell 2, the second aviation socket 5 is located on the rear side of the shell 2, and the knob of the change-over switch 4 is located on the top of the shell 2. The first aviation socket 3 is used for being connected with an aviation plug 9, the second aviation socket 5 is used for being connected with a power distribution terminal, and the power socket 8 is used for being connected with other equipment needing power supply.
Inside the housing 2: as shown in fig. 3, the signal pins of the first aeronautical socket 3 are connected to the signal pins of the second aeronautical socket 5 by means of a terminal strip 7; the power pin of the first aviation socket 3 is connected with the first input end of the change-over switch 4 through the terminal strip 7; the switch socket 6 is connected with a second input end of the change-over switch 4 through a terminal strip 7, and an output end of the change-over switch 4 is connected with a power pin of the second aviation socket 5. The power socket 8 is connected with the switch socket 6.
The order of the output signals of the pins of the second aircraft socket 5 can be changed by adjusting the wiring sequence and the operating position of the changeover switch 4 through the terminal block 7. Specifically, before testing, banana plug 10 is inserted into the output signal end of the testing instrument, aviation plug 9 is inserted into first aviation socket 3, and second aviation socket 5 is guaranteed to be normally connected with the power distribution terminal. If the power distribution terminal needs to be supplied with 220V power independently, the 220V power is connected to the switch socket 6, the change-over switch 4 is adjusted, the alternating current output by the switch socket 6 is supplied to the second aviation socket 5, and in this case, the power socket 8 can also supply power for other equipment. If the power supply provided by the test equipment is used, the changeover switch 4 is adjusted to supply the alternating current drawn by the first airborne socket 3 to the second airborne socket 5. It is also possible to change the signal output definition by adjusting the wiring order on the terminal block 7 according to the situation.
Claims (4)
1. The utility model provides a distribution terminal detects switching device which characterized in that: comprises a cable (1) and a shell (2);
one end of the cable (1) is connected with a banana plug (10), and the banana plug (10) is used for connecting test equipment; the other end of the cable (1) is connected with an aviation plug (9);
a first aviation socket (3), a second aviation socket (5), a switch socket (6) and a change-over switch (4) are mounted on the shell (2); a terminal row (7) is arranged in the shell (2);
the first aviation socket (3) is used for being connected with an aviation plug (9);
the second aviation socket (5) is used for connecting a power distribution terminal;
inside the housing (2): the signal pins of the first aviation socket (3) are connected with the signal pins of the second aviation socket (5) through a terminal strip (7); the power pin of the first aviation socket (3) is connected with the first input end of the change-over switch (4) through a terminal strip (7); the switch socket (6) is connected with a second input end of the change-over switch (4) through the terminal strip (7), and an output end of the change-over switch (4) is connected with a power pin of the second aviation socket (5).
2. The power distribution terminal test switching device of claim 1, wherein: the shell (2) is further provided with a power socket (8), and the power socket (8) is connected with the switch socket (6) in the shell (2).
3. The power distribution terminal test switching device of claim 1, wherein: the shell (2) is internally provided with a guide rail, and the terminal strip (7) is arranged on the guide rail.
4. The distribution terminal detecting and switching device according to any one of claims 1 to 3, wherein: the first aviation socket (3) and the switch socket (6) are located on the front side of the shell (2), the second aviation socket (5) is located on the rear side of the shell (2), and the knob of the change-over switch (4) is located on the top of the shell (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021459503.2U CN212722990U (en) | 2020-07-22 | 2020-07-22 | Detection switching device for power distribution terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021459503.2U CN212722990U (en) | 2020-07-22 | 2020-07-22 | Detection switching device for power distribution terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212722990U true CN212722990U (en) | 2021-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021459503.2U Active CN212722990U (en) | 2020-07-22 | 2020-07-22 | Detection switching device for power distribution terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212722990U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113985169A (en) * | 2021-10-26 | 2022-01-28 | 广东电网有限责任公司 | Relay test protection instrument and FTU's termination |
-
2020
- 2020-07-22 CN CN202021459503.2U patent/CN212722990U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113985169A (en) * | 2021-10-26 | 2022-01-28 | 广东电网有限责任公司 | Relay test protection instrument and FTU's termination |
| CN113985169B (en) * | 2021-10-26 | 2024-04-30 | 广东电网有限责任公司 | Wiring device of relay protection tester and FTU |
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