CN214375086U - Three-phase output trial delivery instrument - Google Patents
Three-phase output trial delivery instrument Download PDFInfo
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- CN214375086U CN214375086U CN202022733556.5U CN202022733556U CN214375086U CN 214375086 U CN214375086 U CN 214375086U CN 202022733556 U CN202022733556 U CN 202022733556U CN 214375086 U CN214375086 U CN 214375086U
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Abstract
The utility model discloses an appearance is sent in examination of three-phase output belongs to electric power detection technology field, including box and test annex, the box includes inside detection device, operation and display panel on have the high-voltage output part of three test usefulness, the high-voltage output part of three test usefulness be connected with the inside detection device of box. When the utility model is used for field test, three high-voltage output parts for test of the instrument can be respectively hung on A, B, C three-phase lines before the test, so that the hanging workload is reduced; because the high voltage is applied at the same time, the working state is close to the actual working state of the power grid, comparison and judgment are convenient, the success rate of trial delivery is increased, and the working efficiency is finally improved.
Description
Technical Field
The utility model relates to an electric power detects technical field, especially relates to a three-phase output tries to send appearance.
Background
The electric line is used in a large amount in a power supply system in China, after a fault occurs, a direct current trial transmission instrument or an alternating current trial transmission instrument is needed to be used for troubleshooting and trial transmission check of a distribution line, the existing direct current trial transmission instrument or the existing alternating current trial transmission instrument is provided with a high-voltage output part, the high-voltage output part is connected to the electric line for testing, all the electric lines are composed of A, B, C three phases, when the electric line is used on site, the high-voltage output part of the instrument is often required to be respectively hung on a A, B, C three-phase line for testing, and certain workload is caused by the fact that the electric line is relatively high in ground clearance and is repeatedly hung. In addition, during the testing process, the three-phase testing results are often required to be compared and judged, and when the three-phase testing results are respectively hung and tested, the comparison results are inaccurate due to the fact that the temperature, the humidity or the external testing conditions can change. In particular, when using ac test-and-send equipment, although the voltage applied to the lines, respectively, is a high voltage substantially identical to the operating grid, the actual grid operating voltage is a different ac high voltage with a phase difference of 120 degrees. In actual work, the situation that the instrument trial delivery shows success and the actual grid delivery point does not succeed also occurs.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a three-phase output tries to send appearance solves the technical problem that current trying to send appearance can only a high pressure point output. A test high voltage may be applied to the distribution lines simultaneously.
A three-phase output trial delivery instrument comprises a box body and a test accessory, wherein the box body comprises an internal detection device and an operation and display panel, and three high-voltage output parts for testing are arranged on the operation and display panel.
The detection device in the box body consists of a high-voltage generator, a measurement circuit, a protection circuit and a control circuit. The high voltage generator part converts the input AC220V power into the high voltage required by output, and the measurement circuit feeds the measurement results of output voltage, current and the like back to the control circuit in real time. The protection circuit is an existing leakage protection circuit. The control circuit is a single chip microcomputer minimum system of STC52 series.
The three high-voltage output parts for testing are connected with a detection device in the box body and are fixed on an operation and display panel of the box body.
The three high-voltage output parts for testing can also be fixed on the surface of the outer box of the box body to be used as three independent output sockets.
The test accessories mainly comprise three high-voltage test wires, one end of each test wire can be respectively inserted into three output sockets of the test delivery instrument, and the other end of each test wire is provided with a test clamp and can be hung on a three-phase line to be detected through an insulating rod.
The three high-voltage output parts for testing can be led out to a fixed output socket firstly, and then lead out for testing through the wiring on the output socket during testing, or can be directly led out by using a high-voltage wire. The high-voltage wires used by the three high-voltage output parts for testing can be single-core high-voltage wires or high-voltage wires with shielding ground wires.
The three high-voltage output parts for testing can be three independent high-voltage output parts in appearance, or one high-voltage output part in appearance, but the three high-voltage output parts are still three independent high-voltage output parts inside.
The testing accessory comprises three connecting high-voltage wires which are connected with the three high-voltage output parts for testing. The test accessories can be placed in the box body when being stored or transported along with the instrument, and can also be placed outside the box body independently.
The utility model adopts the above technical scheme, the utility model discloses following technological effect has:
when the utility model is used for field test, three high-voltage output parts for test of the instrument can be respectively hung on A, B, C three-phase lines before the test, so that the hanging workload is reduced; because the high voltage is applied at the same time, the working state is close to the actual working state of the power grid, comparison and judgment are convenient, the success rate of trial delivery is increased, and the working efficiency is finally improved.
Drawings
Fig. 1 is a schematic view of an appearance structure of an embodiment of the present invention;
FIG. 2 is a schematic view of an appearance structure of a test accessory according to an embodiment of the present invention;
fig. 3 is a schematic diagram of application wiring according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, preferred embodiments are described in detail. It should be understood, however, that the numerous specific details set forth in the specification are merely set forth to provide a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.
A three-phase output trial delivery instrument is shown in figure 1, is shown in figure 1 in an appearance structure schematic view, and consists of a box body 1 and a test accessory 2.
The box body 1 comprises an internal detection device 3 and an operation and display panel 4, and the operation and display panel 4 is provided with three high-voltage output parts 5 for testing. Detection device 3 the detection device inside the box comprises a high voltage generator, a measurement circuit, a protection circuit and a control circuit. The high voltage generator part converts the input AC220V power into the high voltage required by output, and the measurement circuit feeds the measurement results of output voltage, current and the like back to the control circuit in real time. The protection circuit is an existing leakage protection circuit. The control circuit is a single chip microcomputer minimum system of STC52 series. The display panel 4 may display 18B24 and the like, and is connected to the control circuit to display data such as collected data.
The three high voltage output parts 5 for testing are connected with the detection device 3 inside the box body 1, fixed on the operation and display panel 4 of the box body 1, or fixed on the surface of the outer box of the box body 1. The present embodiment is fixed to the operation and display panel 4 of the cabinet 1.
The three high-voltage output parts 5 for testing can be directly led out by using a high-voltage wire or can be led out to a fixed output socket firstly, and then the test is led out by connecting wires on the output socket during test. In the embodiment, three high-voltage output parts 5 for testing are led out to a fixed output socket, and the test is led out through the wiring on the output socket during the test.
The three high-voltage output parts 5 for testing can be single-core high-voltage wires or high-voltage wires with shielding ground wires. The present embodiment uses 3 single core high voltage wires.
The three high-voltage output parts 5 for testing can be three independent high-voltage output parts in appearance, or can be one high-voltage output part in appearance, but the three independent high-voltage output parts are still arranged inside. The present embodiment is three separate high voltage output sections.
The test accessory 2 comprises three connecting high-voltage wires connected with three high-voltage output parts 5 for test. The test accessory 2 can be placed in the box body when being stored or transported along with the instrument, and can also be placed outside the box body independently. The specific embodiment is independently placed outside the box body. The test accessory 2 is an existing test assembly.
Fig. 2 is the application wiring schematic diagram of the embodiment of the present invention, as shown in the figure, when the high voltage output part for three tests of the instrument is actually used, A, B, C three-phase lines are respectively connected to the high voltage output part for testing simultaneously.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a three-phase output tries to send appearance which characterized in that: the test box comprises a box body (1) and a test accessory (2), wherein the box body (1) comprises an internal detection device (3) and an operation and display panel (4), the operation and display panel (4) is provided with three high-voltage output parts (5) for testing, and the three high-voltage output parts (5) for testing are connected with the detection device (3) inside the box body (1).
2. The three-phase output trial instrument of claim 1, wherein: the three high-voltage output parts (5) for testing are fixed on the operation and display panel (4) of the box body (1) or on the surface of the outer box of the box body (1).
3. A three-phase output test delivery instrument according to claim 2, wherein: the three high-voltage output parts (5) for testing are led out to a fixed output socket by using a high-voltage wire lead-out interface or a high-voltage wire, and are led out for testing by connecting wires on the output socket during testing.
4. A three-phase output test delivery instrument according to claim 2, wherein: the output wiring of the three high-voltage output parts (5) for testing is a single-core high-voltage wire or a high-voltage wire of a shielding ground wire.
5. The three-phase output trial instrument of claim 1, wherein: the test accessory (2) comprises three connecting high-voltage wires which are connected with the three high-voltage output parts (5) for testing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022733556.5U CN214375086U (en) | 2020-11-23 | 2020-11-23 | Three-phase output trial delivery instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022733556.5U CN214375086U (en) | 2020-11-23 | 2020-11-23 | Three-phase output trial delivery instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214375086U true CN214375086U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022733556.5U Active CN214375086U (en) | 2020-11-23 | 2020-11-23 | Three-phase output trial delivery instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214375086U (en) |
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2020
- 2020-11-23 CN CN202022733556.5U patent/CN214375086U/en active Active
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