CN219475657U - Automatic wire changing device for high-voltage insulation test - Google Patents
Automatic wire changing device for high-voltage insulation test Download PDFInfo
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- CN219475657U CN219475657U CN202320054342.6U CN202320054342U CN219475657U CN 219475657 U CN219475657 U CN 219475657U CN 202320054342 U CN202320054342 U CN 202320054342U CN 219475657 U CN219475657 U CN 219475657U
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Abstract
The utility model discloses an automatic wire changing device for a high-voltage insulation test, which comprises a first wire changing table, a second wire changing table and a background control system; the high-voltage switch test product is connected with high-voltage insulation detection equipment through the first line changing table and the second line changing table; the first line changing table and the second line changing table are respectively provided with an electric three-station isolating switch, and the second line changing table is provided with an electric isolating switch for grounding and an electric isolating switch for discharging; the background control system comprises a control signal box module, a photoelectric isolation module, a control line changing module and a state signal table module; in the test process, the utility model automatically controls the wire replacement in the background control system, thereby greatly shortening the time, reducing the on-site wiring times of personnel and reducing the electric shock risk caused by incomplete discharge or forgetting the discharge flow of the personnel.
Description
Technical Field
The utility model relates to the technical field of high-voltage insulation test devices, in particular to an automatic wire changing device for a high-voltage insulation test.
Background
When the switching equipment with the voltage withstand and the lightning impulse test of the power frequency of 35kV or below is used for carrying out the power frequency voltage withstand and the lightning impulse test, high voltage is sequentially applied to each wiring terminal of the switching equipment according to national standards and industry standards, the pressurizing part of the wiring terminal of the high-voltage switching equipment needs to be replaced for many times in the test process, the line replacement times are frequent, and the total line replacement times of the power frequency voltage withstand and the lightning impulse test are as high as 18 times. In the wire replacement process, the test equipment and the high-voltage switch are discharged at first, and then the wiring is changed, so that the wire replacement process is tedious, time-consuming, incomplete in discharging or certain danger exists because workers forget the discharging process.
Disclosure of Invention
In order to solve the problems, the utility model provides an automatic wire changing device for a high-voltage insulation test.
The utility model adopts the scheme that: an automatic wire changing device for a high-voltage insulation test comprises a first wire changing table, a second wire changing table and a background control system; the first line changing table and the second line changing table are respectively provided with an electric three-station isolating switch, one side terminal of the electric three-station isolating switch is connected with a wiring terminal of a high-voltage switch sample, the other side of the electric three-station isolating switch is provided with three stations, the electric three-station isolating switch can move to a high-voltage position, a grounding position and a hanging position, and the high-voltage position and the grounding position are respectively connected with a high-voltage end and a grounding end of high-voltage insulation detection equipment through two ports of the line changing table; the second line changing table is also provided with an electric isolating switch for grounding and an electric isolating switch for discharging, one side terminal of the electric isolating switch for grounding is connected with the grounding part of the high-voltage switch sample, the other side terminal of the electric isolating switch for grounding is connected with the grounding end of the high-voltage insulation detection equipment through the port of the line changing table, the electric isolating switch for discharging is used for discharging the high-voltage insulation detection equipment and the high-voltage insulation detection equipment, and the two ends of the electric isolating switch for discharging are respectively connected with the high-voltage end and the grounding end;
the background control system comprises a control signal box module, a photoelectric isolation module, a control line changing module and a state signal table module; the control signal box module is used for collecting control lines and state lines of the electric three-station isolating switch, the electric isolating switch for grounding and the electric isolating switch for discharging; the photoelectric isolation module is connected with the control signal box module and is used for isolating an electric signal input into the background control system by the control signal box module; the control line changing module is connected with the photoelectric isolation module and is used for respectively sending control instructions to the electric three-station isolation switch, the electric isolation switch and the electric isolation switch for discharging; the state signal platform module is connected with the photoelectric isolation module and is used for acquiring and displaying state information of the electric three-station isolation switch, the electric isolation switch and the electric isolation switch for discharging.
Preferably, the device further comprises a sample control module and an auxiliary driving device, wherein the sample control module is connected with the photoelectric isolation module and is used for controlling the electric switching-on and switching-off of the high-voltage switch sample by controlling the auxiliary driving device, a control line and a state line of the high-voltage switch sample are collected in the control signal box module, and the state signal box module can acquire and display state information of the high-voltage switch sample.
Preferably, the test system further comprises an independent power module, wherein the independent power module is connected with the control signal box module and is used for providing adjustable direct current or alternating current for the test.
Preferably, the independent power module includes a battery and a UPS.
Preferably, the control line changing module is a programmable logic controller.
Compared with the prior art, the utility model has the following beneficial effects: in the test process, the wire replacement is automatically controlled in a background control system, so that the time is greatly shortened, the on-site wiring times of personnel are reduced, and the electric shock risk caused by incomplete discharge or forgetting a discharge flow of the personnel is reduced; the independent power supply module is arranged, so that the test device is independent from the outside, the insulation performance of the high-voltage switch test product and the wire changing table is prevented from being reduced, and high voltage is input to other power supply systems. The test article control module and the auxiliary driving device can realize automatic control of the high-voltage switch test article, and test time and labor are saved.
Drawings
Fig. 1 is a block diagram showing the overall structure of the present utility model.
FIG. 2 is a table of test conditions under the general conditions specified in national standard GB/T11022.
In the figure: 1. a first wire changing station; 2. a second wire changing station; 3. high voltage insulation detection equipment; 4. a high voltage switch sample; 5. an electric three-station isolating switch; 6. an electric isolating switch for grounding; 7. an electric isolating switch for discharging; 8. an auxiliary driving device;
A. b, C, a, b, c: a terminal of a high voltage switch sample;
f: a base of a high-voltage switch sample;
e: grounding position;
h: high voltage level.
Detailed Description
The technical scheme of the utility model will be further described with reference to fig. 1 and 2.
An automatic wire changing device for a high-voltage insulation test comprises a first wire changing table 1, a second wire changing table 2 and a background control system; the first wire changing table 1 and the second wire changing table 2 can be arranged beside the high-voltage insulation detection equipment 3, and the specific positions of the first wire changing table and the second wire changing table are not limited, so long as flexible wiring can be completed; the first line changing table 1 and the second line changing table 2 are respectively provided with an electric three-station isolating switch 5, one side terminal of the electric three-station isolating switch is connected with a wiring terminal of a high-voltage switch test article 4, for example, A, B, C, a, b, c, the other side of the electric three-station isolating switch 5 is provided with three stations, the electric three-station isolating switch 5 can move to a high-voltage position, a grounding position and a hanging position, and the high-voltage position and the grounding position are respectively connected with a high-voltage end and a grounding end of the high-voltage insulation detection equipment 3 through two ports of the line changing table; the second line changing table 2 is further provided with an electric isolating switch 6 for grounding and an electric isolating switch 7 for discharging, one side terminal of the electric isolating switch 6 for grounding is connected with the grounding part of the high-voltage switch sample 4, the other side terminal of the electric isolating switch 6 for grounding is connected with the grounding end of the high-voltage insulation detection equipment 3 through a port of the line changing table, the electric isolating switch 7 for discharging is used for discharging the high-voltage insulation detection equipment 3 and the high-voltage insulation detection equipment 3, and two ends of the electric isolating switch 7 for discharging are respectively connected with the high-voltage end and the grounding end;
the background control system comprises a control signal box module, a photoelectric isolation module, a control line changing module and a state signal table module;
the control signal box module is used for collecting control lines and three-station state lines of the electric three-station isolating switch 5, and collecting control lines and on-off state lines of the electric isolating switch 6 for grounding and the electric isolating switch 7 for discharging; collecting a control line and a switching-on and switching-off state line of a high-voltage switch sample 4;
the photoelectric isolation module is connected with the control signal box module and is mainly a photoelectric coupler, and after the electric signals of the control signal box module are isolated, the electric signals are input into the background control system, so that high-voltage electricity is prevented from being input into the background control system due to the reduction of the insulation performance of equipment, and the safety of crisis personnel and precision instruments is prevented.
The control line changing module is connected with the photoelectric isolation module and can be a programmable logic controller in the prior art, and is used for respectively sending control instructions to the electric three-station isolation switch 5, the electric isolation switch 6 and the electric isolation switch 7 for discharging; controlling the electric three-station isolating switch 5 to move to a high-voltage position H, a grounding position E or a suspending position; and controlling the electric isolating switch for grounding to move to the grounding position E and the opening position, and controlling the electric isolating switch for discharging to move to the closing position for discharging and the opening position.
The state signal table module is connected with the photoelectric isolation module and is used for acquiring and displaying state information of the electric three-station isolation switch 5, the electric isolation switch 6 and the electric isolation switch 7 for discharging; the switch can be a display screen for displaying the switch-on and switch-off state of the high-voltage switch sample 4; displaying a high voltage position H, a grounding position E and a suspending position of the electric three-station isolating switch 5; the electric isolating switch for displaying grounding moves to the grounding position E and the opening position, and the electric isolating switch for displaying discharging moves to the closing position and the opening position.
The background control system can also comprise a sample control module and an auxiliary driving device 8, wherein the sample control module is connected with the photoelectric isolation module and is used for controlling the electric switching-on and switching-off of the high-voltage switch sample 4 by controlling the auxiliary driving device 8. Meanwhile, the test device can also comprise an independent power supply module, the independent power supply module is connected with the control signal box module, and the independent power supply module is used for providing adjustable direct current or alternating current for the test device and comprises a high-voltage switch sample 4, an electric three-station isolating switch 5, an electric isolating switch 6 for grounding and an electric isolating switch 7 for discharging; the independent power supply module mainly comprises a battery and a UPS (UPS is an uninterruptible power supply, is an uninterruptible power supply with an energy storage device and constant voltage and constant frequency taking an inverter as a main component, and UPS equipment generally provides protection for overlarge voltage and too low voltage) and is independent from the outside, so that the insulation performance of the high-voltage switch sample 4, the first line changing table 1 and the second line changing table 2 is prevented from being reduced, and high voltage is input to other power supply systems.
The working principle is as follows: when a high-voltage insulation test is performed, such as a power frequency withstand voltage or lightning impulse test, firstly, a terminal A, B, C, a, b, c, F of a high-voltage switch sample is connected into a first line changing table and a second line changing table through an electric three-position isolating switch, and a high-voltage end and a grounding end of high-voltage insulation detection equipment are respectively connected into a high-voltage H end and a grounding E end of the first line changing table and the second line changing table. According to a test program, the line changing module is operated and controlled through the background operation system, the photoelectric isolation module and the control signal box module are used for controlling the electric three-station isolation switch to move to the high-voltage position H or the grounding position E or the suspension position, controlling the electric isolation switch for grounding to move to the grounding position E or the opening position, controlling the electric isolation switch for discharging to move to the closing position for discharging or opening the opening position, and in the control process, providing a power supply for controlling and driving through the independent power supply module. According to the test program, the test article control console module is operated through the background operation system, the auxiliary driving device is controlled through the photoelectric isolation module and the control signal box module, and the electric switching-on or switching-off operation of the high-voltage switch test article is controlled. In the control process, an independent power module provides a power supply for controlling and driving. Meanwhile, whether various signals of the state signal table module are correct or not is checked, and after the signals are correct or not, the high-voltage insulation detection equipment can be started for testing.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
While the above description of the embodiments has been presented for the purpose of providing a further detailed description of the problems, aspects and advantages of the utility model, it should be appreciated by those skilled in the art that the utility model is not limited to the embodiments described above, but is capable of numerous variations and modifications without departing from the spirit and scope of the utility model as hereinafter claimed.
Claims (5)
1. The utility model provides an automatic line device that trades of high voltage insulation test which characterized in that: the device comprises a first line changing station (1), a second line changing station (2) and a background control system; the wire changing device comprises a first wire changing table (1) and a second wire changing table (2), wherein an electric three-station isolating switch (5) is arranged on the first wire changing table and the second wire changing table, one side terminal of the electric three-station isolating switch is connected with a wiring terminal of a high-voltage switch test article (4), the other side of the electric three-station isolating switch (5) is provided with three stations, the electric three-station isolating switch (5) can move to a high-voltage position, a grounding position and a hanging position, and the high-voltage position and the grounding position are respectively connected into a high-voltage end and a grounding end of high-voltage insulation detection equipment (3) through two ports of the wire changing table; the second line changing table (2) is further provided with an electric isolating switch (6) for grounding and an electric isolating switch (7) for discharging, one side terminal of the electric isolating switch (6) for grounding is connected with the grounding part of the high-voltage switch test article (4), the other side terminal of the electric isolating switch (6) for grounding is connected with the grounding end of the high-voltage insulation detection equipment (3) through the port of the line changing table, the electric isolating switch (7) for discharging is used for discharging the high-voltage insulation detection equipment (3) and the high-voltage insulation detection equipment (3), and the two ends of the electric isolating switch (7) for discharging are respectively connected with the high-voltage end and the grounding end;
the background control system comprises a control signal box module, a photoelectric isolation module, a control line changing module and a state signal table module; the control signal box module is used for collecting control lines and state lines of the electric three-station isolating switch (5), the electric isolating switch (6) for grounding and the electric isolating switch (7) for discharging; the photoelectric isolation module is connected with the control signal box module and is used for isolating an electric signal input into the background control system by the control signal box module; the control line changing module is connected with the photoelectric isolation module and is used for respectively sending control instructions to the electric three-station isolation switch (5), the electric isolation switch (6) and the electric isolation switch (7) for discharging; the state signal platform module is connected with the photoelectric isolation module and is used for acquiring and displaying state information of the electric three-station isolation switch (5), the electric isolation switch (6) and the electric isolation switch (7) for discharging.
2. An automatic wire changing device for high voltage insulation test as claimed in claim 1, wherein: the high-voltage switch test device is characterized by further comprising a test product control module and an auxiliary driving device (8), wherein the test product control module is connected with the photoelectric isolation module and is used for controlling the electric switching-on and switching-off of the high-voltage switch test product (4) by controlling the auxiliary driving device (8), a control line and a state line of the high-voltage switch test product (4) are collected in the control signal box module, and the state signal box module can acquire and display state information of the high-voltage switch test product (4).
3. An automatic wire changing device for high voltage insulation test as claimed in claim 1, wherein: the test system also comprises an independent power module, wherein the independent power module is connected with the control signal box module and is used for providing adjustable direct current or alternating current for the test.
4. An automatic wire changing device for high voltage insulation test as claimed in claim 3, wherein: the stand-alone power module includes a battery and a UPS.
5. An automatic wire changing device for high voltage insulation test as claimed in claim 1, wherein: the control line changing module is a programmable logic controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320054342.6U CN219475657U (en) | 2023-01-09 | 2023-01-09 | Automatic wire changing device for high-voltage insulation test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320054342.6U CN219475657U (en) | 2023-01-09 | 2023-01-09 | Automatic wire changing device for high-voltage insulation test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219475657U true CN219475657U (en) | 2023-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320054342.6U Active CN219475657U (en) | 2023-01-09 | 2023-01-09 | Automatic wire changing device for high-voltage insulation test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219475657U (en) |
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2023
- 2023-01-09 CN CN202320054342.6U patent/CN219475657U/en active Active
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