CN209821310U - Transmission line parameter test safety protection platform - Google Patents
Transmission line parameter test safety protection platform Download PDFInfo
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- CN209821310U CN209821310U CN201920365938.1U CN201920365938U CN209821310U CN 209821310 U CN209821310 U CN 209821310U CN 201920365938 U CN201920365938 U CN 201920365938U CN 209821310 U CN209821310 U CN 209821310U
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Abstract
The utility model discloses a transmission line parameter test safety protection platform, which comprises a line parameter tester, a first head end safety switching device, a second head end safety switching device, a first butt end safety switching device, a second butt end safety switching device and a PC (personal computer), wherein the first head end safety switching device and the second head end safety switching device are both connected with the head end of a tested line and are used for collecting the real-time induction voltage of the line; the first head end safety switching device and the second head end safety switching device are connected with the line parameter tester through RS485 serial cables, and are used for transmitting the collected real-time line induction voltage data to the line parameter tester and receiving a test switching instruction sent by the line parameter tester. The utility model discloses think about ingenious, safe operation platform has stopped the person electric shock risk that induced electricity and thunder and lightning caused in the testing process from the technical layer, has avoided the operation personnel to violate regulations, the safe risk that the maloperation arouses, has realized the intelligent test of overall process.
Description
Technical Field
The utility model relates to a transmission line parameter test technical field specifically is transmission line parameter test safety protection platform.
Background
Transmission lines are important components of electrical power systems. The engineering requires the actual measurement of power frequency parameters of newly erected and modified power lines, and the line parameter test becomes a necessary work before the high-voltage power transmission line is put into production or after the high-voltage power transmission line is modified. Before the high-voltage transmission line is put into operation, various power frequency parameter values are required to be measured besides checking the insulation condition of the line and checking the phase, and the parameters are necessary parameters before carrying out power flow calculation, short-circuit current calculation, relay protection setting calculation and selection of an operation mode of a power system.
The electric power construction in China begins to develop rapidly in the 80 th of the last century, in recent years, along with the continuous development and perfection of power grids, power transmission corridors are more and more dense, when the power grid line is single, the risk of induced voltage does not exist in parameter testing, but along with the continuous development of society, the construction cost is increased, the same pole is erected, and more parallel lines are arranged, so that the environment of line parameter testing is more and more complicated, and the anti-induction electricity becomes a problem which must be faced by testers in the parameter testing process; moreover, the line crossing mountain areas is common in power grid construction, and how to prevent lightning during parameter testing must be within the consideration range of safety testing. In the traditional test mode, a tester mainly depends on the fact that the tester wears insulating shoes and insulating pads with insulating gloves and utilizes a parameter test instrument to complete measurement, and three important potential safety hazards of induced electricity, thunder and lightning, illegal operation of the tester and misoperation exist in the process. How to reduce the risk and improve the operation safety coefficient is an important subject in the power transmission line parameter testing industry.
In order to solve the problems, a safety protection platform for parameter testing of the power transmission line is researched and developed at present, the safety operation platform is used for eliminating the risks of induction electricity and lightning personal electric shock in the testing process from the technical aspect, the safety risks caused by illegal operation and misoperation of operating personnel are avoided, and the intelligent testing of the whole process is realized.
SUMMERY OF THE UTILITY MODEL
To the above situation, for overcoming prior art's defect, the utility model provides a transmission line parameter testing safety protection platform, the effectual problem of having solved in the testing process in the face of the dead potential safety hazard of induction electricity, thunderbolt electricity etc. can the person.
In order to achieve the above object, the utility model provides a following technical scheme: the safety protection platform for the power transmission line parameter test comprises a line parameter tester, a first head end safety switching device, a second head end safety switching device, a first opposite end safety switching device, a second opposite end safety switching device and a PC (personal computer), wherein the first head end safety switching device and the second head end safety switching device are connected with the head end of a tested line and are used for collecting real-time induction voltage of the line;
the first head end safety switching device and the second head end safety switching device are connected with the line parameter tester through RS485 serial cables, and are used for transmitting the acquired real-time line induction voltage data to the line parameter tester and receiving a test switching instruction sent by the line parameter tester;
the first counter end safety switching device and the second counter end safety switching device are connected with opposite ends of a detected line and used for collecting real-time induced voltage of the line, and the first counter end safety switching device and the second counter end safety switching device are connected with the PC through a wireless 4G network and used for transmitting collected real-time induced voltage data of the line to the PC and receiving a test switching instruction sent by the PC;
the line parameter tester is internally provided with a Bluetooth 4.0 module, is connected with the PC through the Bluetooth 4.0 module, and is used for transmitting a line parameter test result and real-time induction voltage of a line to the PC and receiving a test starting instruction sent by the PC.
According to the technical scheme, the first head end safety switching device and the second head end safety switching device both comprise a first ARM mainboard and an interference voltage display module, and the first ARM mainboard adopts a switching power supply to supply power to the first ARM mainboard;
the first ARM mainboard is used for receiving a remote/local control instruction or receiving an instruction from a line parameter tester through an RS485 serial port, uploading an interference voltage acquisition signal, communicating with a relay control loop through an I/O port, driving a relay to act and finishing the wiring switching of an external line;
interference voltage display module for after will being surveyed the interference voltage input of circuit, use the resistance voltage divider, directly show measured interference voltage value at first head end safety switching device and second head end safety switching device's interference voltage display module, and through interference voltage acquisition return circuit, the interference voltage who will gather returns first ARM mainboard, first ARM mainboard passes through RS485 serial ports and line parameter tester communication, the display module that will interfere with voltage and pass on the line parameter tester shows.
According to the technical scheme, the first contra-terminal safety switching device and the second contra-terminal safety switching device both comprise a second ARM mainboard and an interference voltage display module, and the second ARM mainboard adopts a switching power supply to supply power to the second ARM mainboard;
the second ARM mainboard is used for receiving a remote/local control instruction or receiving an instruction from a PC through a 4G wireless network, and is communicated with the relay control loop through the I/O port to drive the relay to act so as to complete the wiring switching of an external circuit;
and the interference voltage display module is used for displaying the measured interference voltage value on the interference voltage display modules of the first opposite-end safety switching device and the second opposite-end safety switching device by using the resistance voltage divider after the interference voltage of the line to be detected is input, transmitting the acquired interference voltage back to the second ARM mainboard through the interference voltage acquisition loop, communicating the second ARM mainboard with the PC through a 4G wireless network, and transmitting the interference voltage to the display module on the PC for display.
According to the technical scheme, the resistance voltage divider is used for carrying out secondary voltage division on the acquired interference voltage and inputting the interference voltage into the interference voltage display module and the interference voltage acquisition loop respectively, the specification of the resistance voltage divider is 20kV/10V, and the transformation ratio is 2000: 1.
According to the technical scheme, the interference voltage acquisition loop adopts an AD7656 multi-channel signal acquisition system, the AD7656 multi-channel signal acquisition system adopts an AD7656 as a front-end ADC, and data receiving processing is achieved through the ADSP 21369.
According to the technical scheme, the switching power supply adopts an RT-65B switching power supply, and inputs: 100-240VAC/2A, output: +5V/5A, +12V/2.8A, -12V/0.5A.
The utility model discloses think about ingenious, safe operation platform has stopped the person electric shock risk that induced electricity and thunder and lightning caused in the testing process from the technical layer, has avoided the operation personnel to violate regulations, the safe risk that the maloperation arouses, has realized the intelligent test of overall process.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall frame structure of the present invention;
FIG. 2 is a schematic diagram of the frame structure of the head end safety switching device of the present invention;
FIG. 3 is a schematic diagram of the frame structure of the opposite-end safety switching device of the present invention;
FIG. 4 is an electrical wiring diagram of the head end safety switching apparatus of the present invention;
fig. 5 is the electrical wiring diagram of the opposite-end safety switching device of the present invention.
Detailed Description
The following describes the present invention in further detail with reference to fig. 1-5.
Given by figures 1-5, the utility model provides the following technical scheme: the safety protection platform for the power transmission line parameter test comprises a line parameter tester, a first head end safety switching device, a second head end safety switching device, a first opposite end safety switching device, a second opposite end safety switching device and a PC (personal computer), wherein the first head end safety switching device and the second head end safety switching device are connected with the head end of a tested line and are used for collecting real-time induction voltage of the line;
the first head end safety switching device and the second head end safety switching device are connected with the line parameter tester through RS485 serial cables, and are used for transmitting the acquired real-time line induction voltage data to the line parameter tester and receiving a test switching instruction sent by the line parameter tester;
the first counter end safety switching device and the second counter end safety switching device are connected with opposite ends of a detected line and used for collecting real-time induced voltage of the line, and the first counter end safety switching device and the second counter end safety switching device are connected with the PC through a wireless 4G network and used for transmitting collected real-time induced voltage data of the line to the PC and receiving a test switching instruction sent by the PC;
the line parameter tester is internally provided with a Bluetooth 4.0 module, is connected with the PC through the Bluetooth 4.0 module, and is used for transmitting a line parameter test result and real-time induction voltage of a line to the PC and receiving a test starting instruction sent by the PC.
According to the technical scheme, the first head end safety switching device and the second head end safety switching device both comprise a first ARM mainboard and an interference voltage display module, and the first ARM mainboard adopts a switching power supply to supply power to the first ARM mainboard;
the first ARM mainboard is used for receiving a remote/local control instruction or receiving an instruction from a line parameter tester through an RS485 serial port, uploading an interference voltage acquisition signal, communicating with a relay control loop through an I/O port, driving a relay to act and finishing the wiring switching of an external line;
interference voltage display module for after will being surveyed the interference voltage input of circuit, use the resistance voltage divider, directly show measured interference voltage value at first head end safety switching device and second head end safety switching device's interference voltage display module, and through interference voltage acquisition return circuit, the interference voltage who will gather returns first ARM mainboard, first ARM mainboard passes through RS485 serial ports and line parameter tester communication, the display module that will interfere with voltage and pass on the line parameter tester shows.
According to the technical scheme, the first contra-terminal safety switching device and the second contra-terminal safety switching device both comprise a second ARM mainboard and an interference voltage display module, and the second ARM mainboard adopts a switching power supply to supply power to the second ARM mainboard;
the second ARM mainboard is used for receiving a remote/local control instruction or receiving an instruction from a PC through a 4G wireless network, and is communicated with the relay control loop through the I/O port to drive the relay to act so as to complete the wiring switching of an external circuit;
and the interference voltage display module is used for displaying the measured interference voltage value on the interference voltage display modules of the first opposite-end safety switching device and the second opposite-end safety switching device by using the resistance voltage divider after the interference voltage of the line to be detected is input, transmitting the acquired interference voltage back to the second ARM mainboard through the interference voltage acquisition loop, communicating the second ARM mainboard with the PC through a 4G wireless network, and transmitting the interference voltage to the display module on the PC for display.
According to the technical scheme, the resistance voltage divider is used for carrying out secondary voltage division on the acquired interference voltage and inputting the interference voltage into the interference voltage display module and the interference voltage acquisition loop respectively, the specification of the resistance voltage divider is 20kV/10V, and the transformation ratio is 2000: 1.
According to the technical scheme, the interference voltage acquisition loop adopts an AD7656 multi-channel signal acquisition system, the AD7656 multi-channel signal acquisition system adopts an AD7656 as a front-end ADC, and data receiving processing is achieved through the ADSP 21369.
According to the technical scheme, the switching power supply adopts an RT-65B switching power supply, and inputs: 100-240VAC/2A, output: +5V/5A, +12V/2.8A, -12V/0.5A.
The utility model discloses think about ingenious, safe operation platform has stopped the person electric shock risk that induced electricity and thunder and lightning caused in the testing process from the technical layer, has avoided the operation personnel to violate regulations, the safe risk that the maloperation arouses, has realized the intelligent test of overall process.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The safety protection platform for the power transmission line parameter test comprises a line parameter tester, a first head end safety switching device, a second head end safety switching device, a first opposite end safety switching device, a second opposite end safety switching device and a PC (personal computer), and is characterized in that the first head end safety switching device and the second head end safety switching device are both connected with the head end of a tested line and are used for collecting real-time induction voltage of the line;
the first head end safety switching device and the second head end safety switching device are connected with the line parameter tester through RS485 serial cables, and are used for transmitting the acquired real-time line induction voltage data to the line parameter tester and receiving a test switching instruction sent by the line parameter tester;
the first counter end safety switching device and the second counter end safety switching device are connected with opposite ends of a detected line and used for collecting real-time induced voltage of the line, and the first counter end safety switching device and the second counter end safety switching device are connected with the PC through a wireless 4G network and used for transmitting collected real-time induced voltage data of the line to the PC and receiving a test switching instruction sent by the PC;
the line parameter tester is internally provided with a Bluetooth 4.0 module, is connected with the PC through the Bluetooth 4.0 module, and is used for transmitting a line parameter test result and real-time induction voltage of a line to the PC and receiving a test starting instruction sent by the PC.
2. The power transmission line parameter testing safety protection platform of claim 1, wherein the first head end safety switching device and the second head end safety switching device each comprise a first ARM main board and an interference voltage display module, and the first ARM main board adopts a switching power supply to supply power to the first ARM main board;
the first ARM mainboard is used for receiving a remote/local control instruction or receiving an instruction from a line parameter tester through an RS485 serial port, uploading an interference voltage acquisition signal, communicating with a relay control loop through an I/O port, driving a relay to act and finishing the wiring switching of an external line;
interference voltage display module for after will being surveyed the interference voltage input of circuit, use the resistance voltage divider, directly show measured interference voltage value at first head end safety switching device and second head end safety switching device's interference voltage display module, and through interference voltage acquisition return circuit, the interference voltage who will gather returns first ARM mainboard, first ARM mainboard passes through RS485 serial ports and line parameter tester communication, the display module that will interfere with voltage and pass on the line parameter tester shows.
3. The power transmission line parameter testing safety protection platform of claim 1, wherein the first and second peer-to-peer safety switching devices each comprise a second ARM main board and an interference voltage display module, and the second ARM main board adopts a switching power supply to supply power to the second ARM main board;
the second ARM mainboard is used for receiving a remote/local control instruction or receiving an instruction from a PC through a 4G wireless network, and is communicated with the relay control loop through the I/O port to drive the relay to act so as to complete the wiring switching of an external circuit;
and the interference voltage display module is used for displaying the measured interference voltage value on the interference voltage display modules of the first opposite-end safety switching device and the second opposite-end safety switching device by using the resistance voltage divider after the interference voltage of the line to be detected is input, transmitting the acquired interference voltage back to the second ARM mainboard through the interference voltage acquisition loop, communicating the second ARM mainboard with the PC through a 4G wireless network, and transmitting the interference voltage to the display module on the PC for display.
4. The electric transmission line parameter testing safety protection platform of claim 2 or 3, wherein the resistance voltage divider is used for performing secondary voltage division on the acquired interference voltage, and inputting the acquired interference voltage into the interference voltage display module and the interference voltage acquisition loop respectively, and the resistance voltage divider has a specification of 20kV/10V and a transformation ratio of 2000: 1.
5. The transmission line parameter testing safety protection platform of claim 2 or 3, wherein the interference voltage acquisition loop adopts an AD7656 multi-channel signal acquisition system, the AD7656 multi-channel signal acquisition system adopts an AD7656 as a front-end ADC, and the ADSP21369 is used for receiving and processing data.
6. The transmission line parameter testing safety protection platform of claim 2 or 3, wherein the switching power supply adopts an RT-65B switching power supply, and inputs: 100-240VAC/2A, output: +5V/5A, +12V/2.8A, -12V/0.5A.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920365938.1U CN209821310U (en) | 2019-03-21 | 2019-03-21 | Transmission line parameter test safety protection platform |
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| CN201920365938.1U CN209821310U (en) | 2019-03-21 | 2019-03-21 | Transmission line parameter test safety protection platform |
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| CN209821310U true CN209821310U (en) | 2019-12-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813990A (en) * | 2019-03-21 | 2019-05-28 | 山西晋电电力科技有限公司电网技术分公司 | Transmission line parameter tests security protection platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813990A (en) * | 2019-03-21 | 2019-05-28 | 山西晋电电力科技有限公司电网技术分公司 | Transmission line parameter tests security protection platform |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200812 Address after: 030000, No. 3, No. 1, building 2, Changzhi Road, No. 239, Taiyuan Road, hi tech Zone, Shanxi, China Co-patentee after: INFORMATION COMMUNICATION BRANCH OF STATE GRID SHANXI ELECTRIC POWER Co. Patentee after: SHANXI YITONG POWER GRID PROTECTION AUTOMATION Co.,Ltd. Address before: Room 301, Unit 1, Building 239 Changzhi Road, Taiyuan High-tech Zone, Shanxi Province Co-patentee before: INFORMATION COMMUNICATION BRANCH OF STATE GRID SHANXI ELECTRIC POWER Co. Patentee before: POWER GRID TECHNOLOGY BRANCH OF SHANXI JINDIAN POWER ELECTRIC TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |