CN219417709U - Current and voltage transmitter characteristic test system - Google Patents
Current and voltage transmitter characteristic test system Download PDFInfo
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- CN219417709U CN219417709U CN202320749832.8U CN202320749832U CN219417709U CN 219417709 U CN219417709 U CN 219417709U CN 202320749832 U CN202320749832 U CN 202320749832U CN 219417709 U CN219417709 U CN 219417709U
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- 238000012360 testing method Methods 0.000 title claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims abstract description 5
- 230000001960 triggered effect Effects 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000012512 characterization method Methods 0.000 claims 3
- 238000001514 detection method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to the technical field of testing appliances, in particular to a characteristic testing system of a current and voltage transmitter, which comprises: the high-voltage direct-current adjustable power supply is connected with the primary side of the voltage transmitter and provides primary side input voltage for the voltage transmitter; the millivolt voltage generator is connected with the primary side of the current transducer and provides primary side input voltage for the current transducer; the programmable logic controller is connected with the secondary sides of the voltage transmitter and the current transmitter, and processes after collecting analog quantities output by the secondary sides of the voltage transmitter and the current transmitter; the human-computer interface module is connected with the programmable logic controller and comprises an information display module for displaying the processing result of the programmable logic controller and a plurality of virtual buttons, and when the virtual buttons are triggered, the human-computer interface module transmits predefined signals associated with the virtual buttons to the programmable logic controller.
Description
Technical Field
The utility model relates to the technical field of testing tools, in particular to a characteristic testing system of a current and voltage transmitter.
Background
The power system of the substation is the only system for providing power for the train, and the current and voltage transmitters are used as equipment for providing core parameters for the protection device of the DC switch cabinet of the power system of the substation in the whole subway industry, and are extremely important in the whole power system and the operation of the train. For example, the frame protection of a DC 1500V negative pole cabinet, the current tripping protection of a wire inlet cabinet, a wire inlet cabinet and the like provide action parameters for the transformer through the transmitter, if the transmitter fails, the error tripping of the switch cabinet can be caused, even all the direct current switch cabinets of the whole transformer substation can be caused to trip simultaneously, and 2 switch cabinets which are adjacent to the traction substation and supply power to the bilateral of the local area are connected in parallel to cause complete power failure of the whole section, so that the subway operation is influenced.
At present, the current transmitter and the voltage transmitter cannot be systematically tested in the links of field replacement detection and fault part detection in the using departments for receiving and delivering materials and detecting. If the transmitter is installed on the site without accurate testing, the protection device may malfunction, causing the switch cabinet to trip by mistake.
In addition, when a certain switch cabinet is subjected to fault checking processing on site due to overcurrent protection or heavy current protection tripping, as the transmitters cannot be conveniently and efficiently subjected to accurate testing, the corresponding transmitters can only be tried to be replaced for testing, whether the actual fault tripping or the tripping caused by the faults of the transmitters cannot be rapidly judged, and if the good transmitters cannot be replaced within the skylight time, the fault tripping of the switch cabinet and the complete power failure of the whole interval can be caused.
Therefore, a current transducer and a voltage transducer testing system are required to be designed in the industry, so that the transducer replaced on site is guaranteed to be excellent in performance, the fault checking processing efficiency is improved, and the subway operation is guaranteed.
Disclosure of Invention
The utility model aims to overcome the defects in the background technology, provide a characteristic test system for a current and voltage transmitter, solve the problem that the current transmitter and the voltage transmitter in the subway industry cannot be systematically tested, and improve the efficiency and the accuracy of fault processing.
The technical scheme adopted by the utility model is as follows: a current, voltage transducer characteristic test system, comprising: the high-voltage direct-current adjustable power supply is connected with the primary side of the voltage transmitter and provides primary side input voltage for the voltage transmitter; the millivolt voltage generator is connected with the primary side of the current transducer and provides primary side input voltage for the current transducer; the programmable logic controller is connected with the secondary sides of the voltage transmitter and the current transmitter, and processes after collecting analog quantities output by the secondary sides of the voltage transmitter and the current transmitter; the human-computer interface module is connected with the programmable logic controller and comprises an information display module for displaying the processing result of the programmable logic controller and a plurality of virtual buttons, and when the virtual buttons are triggered, the human-computer interface module transmits predefined signals associated with the virtual buttons to the programmable logic controller.
Preferably, the system further comprises a network switch and a printer; the printer, the programmable logic controller and the human-computer interface module are all connected and communicated with each other through a network switch.
Preferably, the integrated control board is integrated with a circuit for realizing connection between the programmable logic controller and the secondary side of the voltage transmitter and between the programmable logic controller and the secondary side of the current transmitter, and a voltage conversion circuit;
the POL power module provides working voltage for the network switch, the printer, the programmable logic controller and the man-machine interface module, the input end of the voltage conversion circuit is connected with the output side of the POL power module, the output end of the voltage conversion circuit provides working voltage for the communication module, the communication module is connected with the printer, the programmable logic controller and the man-machine interface module through the network switch and communicates with each other, meanwhile, the communication module is connected with the cloud server through the Ethernet or the mobile network, and the cloud server is connected with the terminal equipment.
Preferably, the programmable logic controller, the man-machine interface module, the network switch, the printer, the integrated control board, the communication module and the POL power module are all integrated in the portable case.
The utility model has the following beneficial effects:
1. the portable box integrates the main modules into the portable box, so that the portable box is flexible in use scene and high in practicability;
2. the programmable logic controller can acquire the secondary side analog output of the transmitter, and can systematically realize the test of 16 gears of the transmitters 0-F by matching with a human-computer interface, thereby improving the accuracy of the detection result;
3. the modules assembled in the portable box do not need repeated wiring, so that the wiring time of the testing process of the transmitter can be simplified, the testing process is simple, convenient and efficient, and the fault detection and processing efficiency is improved;
4. the operation is carried out through a human-computer interface, the interface is visual and easy to learn and use, and the requirement standard of testers is reduced; and can be used for teaching training, improve staff's understanding to the different gear performances of current transmitter and voltage transmitter.
Drawings
Fig. 1 is a schematic diagram of a system of the present utility model.
Fig. 2 is a schematic diagram of the topology of the present utility model.
FIG. 3 is a schematic diagram of a human-machine interface of the present utility model.
Reference numerals illustrate: the system comprises a high-voltage direct-current adjustable power supply 1, a voltage transmitter 2, a current transmitter 3, a millivolt voltage generator 4, a portable box 5, a human-computer interface module 6, an information display module 6.1, a virtual button 6.2, a cloud server 7, a terminal device 8, a programmable logic controller 9, an integrated control board 10, a communication module 11, a wiring terminal 12, a network switch 13, a printer 14 and a debugging computer 15.
Detailed Description
The objects, technical solutions and advantages of the present utility model will be further described with reference to the accompanying drawings and examples, but the present utility model is not limited to the following examples, for the purpose of making the objects, technical solutions and advantages of the present utility model more clearly understood by those skilled in the art.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model.
As shown in fig. 1 and 2, the present embodiment provides a system for testing characteristics of a current and voltage transmitter, which includes a high-voltage direct-current adjustable power supply 1 and a high-precision millivolt voltage generator 4, which are respectively connected with primary sides of the voltage transmitter 2 and the current transmitter 3, and simulate primary devices on site to input voltage values to the primary sides of the voltage transmitter 2 and the current transmitter 3. The system also comprises a programmable logic controller 9 which is connected with the secondary sides of the voltage transmitter 2 and the current transmitter 3 through a connecting terminal 12 on the integrated control board 10, and is used for processing after collecting analog quantities output by the secondary sides of the voltage transmitter 2 and the current transmitter 3, and transmitting the processing results to the human-machine interface module 6. The human-computer interface module 6 visually displays the processing result value of the programmable logic controller 9, so that the operation and performance judgment of a tester are facilitated. As shown in fig. 3, the human-machine interface module 6 is connected with the programmable logic controller 9, and comprises an information display module 6.1 for displaying the processing result of the programmable logic controller 9, and a plurality of predefined virtual buttons 6.2, wherein when the virtual buttons 6.2 are triggered, the human-machine interface module 6 transmits predefined signals associated with the virtual buttons 6.2 to the programmable logic controller 9. It should be noted that the principle and the operation of the human interface module 6 are prior art and are not described in detail here.
The present embodiment further includes an integrated control board 10, a communication module 11, a POL (Point-of-load) power module, a network switch 13, a printer 14, a portable box 5, a cloud server 7, and a terminal device 8. The integrated control board 10 is integrated with a printed circuit for realizing the connection of the programmable logic controller 9 with the secondary side of the voltage transmitter 2 and the secondary side of the current transmitter 3, and the printed circuit is connected with the programmable logic controller 9, the secondary side of the voltage transmitter 2 and the secondary side of the current transmitter 3 through the connecting terminals 12. The integrated control board 10 is also integrated with a voltage conversion circuit for converting appropriate operating voltages for different devices. The printer 14, the programmable logic controller 9 and the human-computer interface module 6 are all connected to the network switch 13 through network cables to realize interconnection and communication, and the debugging computer 15 is also connected with the network switch 13 to realize the debugging of the programmable logic controller 9.
The POL power module provides working voltages for the network switch 13, the printer 14, the programmable logic controller 9 and the human-machine interface module 6. The communication module 11 is mounted on the integrated control board 10, the input end of the voltage conversion circuit is connected with the output side of the POL power module, the output end of the voltage conversion circuit provides working voltage for the communication module 11, and the communication module 11 is connected to the network switch 13 through a network cable, so that the printer 14, the programmable logic controller 9 and the human-computer interface module 6 are mutually connected and communicated. Meanwhile, the communication module 11 is connected with the cloud server 7 through an Ethernet or a mobile network, the cloud server 7 is connected with the terminal equipment 8 such as a mobile phone and a PC, the cloud server 7 sends the performance detection information of the voltage transmitter 2 and the current transmitter 3 uploaded by the communication module 11 to the terminal equipment 8 in the form of a short message or E-Mail and sends the performance state information of the field detection equipment to the mobile phone or the material management terminal of the detection personnel and the material management personnel.
Through the technical scheme, the programmable logic controller 9, the POL power module, the printer 14, the network switch 13, the integrated control board 10, the communication module 11 and the human-computer interface module 6 are integrally arranged in the portable case 5; the human interface module 6 is recommended to be mounted at the panel of the portable case 5; the programmable logic controller 9, the printer 14, the man-machine interface module 6 and the communication module 11 are in communication connection through the network switch 13 by using more than six types of network cables.
The working principle of the utility model is as follows: the voltage values input to the primary sides of the voltage transmitter 2 and the current transmitter 3 by the field primary equipment are respectively simulated through the high-voltage direct-current adjustable power supply 1 and the high-precision millivolt voltage generator 4, the analog values output by the secondary sides of the voltage transmitter 2 and the current transmitter 3 are collected by the programmable logic controller 9 and are internally processed, the processed data are transmitted to the human-computer interface module 6 through the network switch 13, the human-computer interface module 6 visually displays the primary side input value processed by the secondary analog values of the transmitter corresponding to the type and the gear of the actual transmitter, and a tester can judge the performance state of the corresponding transmitter by visually comparing the values with the input values of the direct-current adjustable power supply and the high-precision millivolt voltage generator 4. The performance state information of the field detection device can be sent to a mobile phone or a material management terminal which is a detection person or a material management person through the cloud server 7.
The foregoing description is only of the preferred embodiments of the present utility model, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (4)
1. A current and voltage transducer characteristic test system, comprising:
the high-voltage direct-current adjustable power supply (1) is connected with the primary side of the voltage transmitter (2) and provides primary side input voltage for the voltage transmitter (2);
a millivolt voltage generator (4) connected with the primary side of the current transducer (3) and providing primary side input voltage for the current transducer (3);
the programmable logic controller (9) is connected with the secondary sides of the voltage transmitter (2) and the current transmitter (3), and processes after collecting analog quantities output by the secondary sides of the voltage transmitter (2) and the current transmitter (3);
the human-computer interface module (6) is connected with the programmable logic controller (9) and comprises an information display module (6.1) for displaying the processing result of the programmable logic controller (9) and a plurality of virtual buttons (6.2), and when the virtual buttons (6.2) are triggered, the human-computer interface module (6) transmits predefined signals associated with the virtual buttons (6.2) to the programmable logic controller (9).
2. The current, voltage transducer characterization system of claim 1, wherein: the system also comprises a network switch (13) and a printer (14); the printer (14), the programmable logic controller (9) and the man-machine interface module (6) are all connected and communicated with each other through the network switch (13).
3. The current, voltage transducer characterization system of claim 2, wherein: the integrated control board (10) is integrated with a circuit for realizing connection between the programmable logic controller (9) and the secondary side of the voltage transmitter (2) and the secondary side of the current transmitter (3), and a voltage conversion circuit;
the POL power module provides working voltage for a network switch (13), a printer (14), a programmable logic controller (9) and a human-computer interface module (6), the input end of the voltage conversion circuit is connected with the output side of the POL power module, the output end of the voltage conversion circuit provides working voltage for a communication module (11), the communication module (11) is connected with the printer (14), the programmable logic controller (9) and the human-computer interface module (6) through the network switch (13) and communicates with each other, meanwhile, the communication module (11) is connected with a cloud server (7) through an Ethernet or a mobile network, and the cloud server (7) is connected with a terminal device (8).
4. A current, voltage transducer characterization system according to claim 3, wherein: the programmable logic controller (9), the man-machine interface module (6), the network switch (13), the printer (14), the integrated control board (10), the communication module (11) and the POL power module are all integrated in the portable box (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320749832.8U CN219417709U (en) | 2023-04-07 | 2023-04-07 | Current and voltage transmitter characteristic test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320749832.8U CN219417709U (en) | 2023-04-07 | 2023-04-07 | Current and voltage transmitter characteristic test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219417709U true CN219417709U (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320749832.8U Active CN219417709U (en) | 2023-04-07 | 2023-04-07 | Current and voltage transmitter characteristic test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219417709U (en) |
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2023
- 2023-04-07 CN CN202320749832.8U patent/CN219417709U/en active Active
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240218 Address after: Room 1628, 16th Floor, Chenchuang Building, No. 198 Zhoushan East Road, Gongshu District, Hangzhou City, Zhejiang Province, 310015 Patentee after: Hangzhou Metro Technology Co.,Ltd. Country or region after: China Address before: 310017 floor 12, building 3, No. 466, Jiuhe Road, Shangcheng District, Hangzhou City, Zhejiang Province Patentee before: Hangzhou Metro Operation Co.,Ltd. Country or region before: China |