CN218099352U - Disposable wiring high-voltage transmission line parameter testing equipment - Google Patents
Disposable wiring high-voltage transmission line parameter testing equipment Download PDFInfo
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- CN218099352U CN218099352U CN202221948962.6U CN202221948962U CN218099352U CN 218099352 U CN218099352 U CN 218099352U CN 202221948962 U CN202221948962 U CN 202221948962U CN 218099352 U CN218099352 U CN 218099352U
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Abstract
The utility model relates to a disposable wiring high-voltage transmission line parameter test device, which belongs to the technical field of high-voltage transmission lines and comprises a line parameter system, an auxiliary device, a safety device, an opposite side device and a comprehensive console; the input end of the line parameter system is connected with a tested line and used for measuring parameters of the tested line, the auxiliary device is connected with the line parameter system and used for measuring induction electricity, nuclear phase and insulation resistance, the input end of the safety device is connected with the tested line and used for ground protection of the tested line end in the testing process, the opposite side device is connected with the opposite side matching end of the tested line and used for ground matching of the opposite side matching end in the testing process, and the comprehensive control console performs signal transmission with the line parameter system, the control auxiliary device, the safety device and the opposite side device in a wireless communication mode so as to perform remote control. The utility model discloses at the disposable wiring of experimental preparation stage, the testing process does not need artifical frequent plug wire circuit, safe convenient high efficiency.
Description
Technical Field
The utility model relates to a transmission line parameter test equipment especially relates to a disposable wiring high tension transmission line parameter test equipment, and it belongs to high tension transmission line technical field.
Background
The parameter test of the high-voltage transmission line comprises induction electric measurement, nuclear phase measurement, insulation resistance measurement and line parameter measurement, wherein the line parameter measurement comprises positive sequence impedance, zero sequence impedance, positive sequence capacitance, zero sequence capacitance, double-loop mutual inductance, double-loop coupling capacitance and the like. According to the different test items, different wiring modes are required to be adopted to finish all measurement items of induction voltage and electromagnetic induction current, the wire is manually changed for at least 16 times to finish the measurement items of phase checking and insulation resistance, the wire is manually changed for at least 9 times, in the whole line parameter test process, the opposite side matching end of the measured line needs to be manually operated to be respectively connected with the ground wire, and the grounding is manually opened and closed for at least 15 times. The existing test method is that after each test project is finished, test personnel manually change wiring at a test end and a matching end on the opposite side, test wiring is frequently replaced, test efficiency is low, working strength is high, potential safety hazards are high, and safety accidents are easy to cause. Therefore, a need exists for a parameter testing device for a high-voltage transmission line with one-time wiring, which can complete various tests through remote operation without frequent manual plugging and unplugging of the line.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the defect in the prior art is overcome, and the parameter testing equipment for the high-voltage transmission line with the one-time wiring function is provided.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
a disposable wiring high-voltage transmission line parameter test device comprises a line parameter system, an auxiliary device, a safety device, an opposite side device and a comprehensive control console; the input end of the line parameter system is connected with a tested line and used for measuring parameters of the tested line, the auxiliary device is connected with the line parameter system and used for measuring induction electricity, nuclear phase and insulation resistance, the input end of the safety device is connected with the tested line and used for ground protection of the tested line end in the testing process, the opposite side device is connected with the opposite side matching end of the tested line and used for ground matching of the opposite side matching end in the testing process, and the comprehensive control console performs signal transmission with the line parameter system, the control auxiliary device, the safety device and the opposite side device in a wireless communication mode so as to perform remote control.
Furthermore, the line parameter system comprises a first controller, a first switch switching array, a variable frequency power supply module and a measurement host module; the first controller, the variable-frequency power supply module and the measurement host module are connected to a first switch switching array; the first switch switching array is respectively connected with the tested circuit and the auxiliary device and is communicated with the comprehensive control console through the first controller.
Furthermore, the auxiliary device comprises a second controller, a second switch switching array, a voltage and current testing module and a megohmmeter module; the second controller, the voltage and current testing module and the megohmmeter module are connected to a second switch switching array; the second switch switching array is connected with the first switch switching array, and the second controller is communicated with the comprehensive control console.
Furthermore, the safety device comprises a fourth controller, an energy release driving device and a grounding switch, wherein the grounding switch is connected with a tested circuit, and the fourth controller is communicated with the comprehensive control console.
Furthermore, the contralateral device comprises a third controller and a contralateral grounding switch, the contralateral grounding switch is connected with the contralateral matching end of the tested line, and the third controller is communicated with the comprehensive console.
Furthermore, the integrated console comprises a man-machine interaction terminal and a communication module.
Compared with the prior art, the beneficial effects of the utility model are that: all equipment is wired once in a test preparation stage, when a grounding disconnecting link of a transformer substation is disconnected, an auxiliary device and a line parameter system are respectively operated through a comprehensive control console, and side devices are matched in a wireless remote control mode to complete measurement of induced electricity, nuclear phase, insulation resistance and line parameters, and the whole process does not need to plug and unplug rewire wires, and personnel do not touch the equipment; the devices are controlled in a wireless communication mode; the whole line parameter measurement process does not need to plug and pull test wires or touch equipment, the safety device can be controllably grounded at any time, and the safety device is safe, convenient and efficient.
Drawings
FIG. 1 is a schematic wiring diagram of the present invention;
FIG. 2 is a schematic view of the connection relationship of the present invention;
FIG. 3 is a schematic diagram of the module of the present invention;
FIG. 4 is a schematic view of the internal connection relationship of the auxiliary device of the present invention;
FIG. 5 is a schematic view of the internal connection relationship of the safety device of the present invention;
fig. 6 is a flowchart of the present invention.
In the figure, 1, a line parameter system; 2. an auxiliary device; 3. an opposite-side device; 4. a safety device; 5. and (4) a comprehensive control console.
Detailed Description
The principles and features of the present invention will be described with reference to the accompanying fig. 1 to 5, wherein the examples are provided only for explaining the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 2, a parameter testing device for a disposable wiring high-voltage transmission line comprises a line parameter system 1, an auxiliary device 2, a safety device 4, an opposite side device 3 and a comprehensive console 5; the input end of the line parameter system 1 is connected with a tested line and used for measuring parameters of the tested line, the auxiliary device 2 is connected with the line parameter system 1 and used for measuring induction electricity, nuclear phase and insulation resistance, the input end of the safety device 4 is connected with the tested line and used for ground protection of the tested line end in the testing process, the opposite side device 3 is connected with the opposite side matching end of the tested line and used for controlling the ground of the opposite side matching end in the testing process, and the comprehensive control console 5 conducts signal transmission with the line parameter system 1, the control auxiliary device 2, the safety device 4 and the opposite side device 3 in a wireless communication mode so as to conduct remote control.
As shown in fig. 3, the line parameter system 1 includes a first controller, a first switch switching array, a variable frequency power supply module, and a measurement host module; the first controller, the variable-frequency power supply module and the measurement host module are connected to a first switch switching array; the first switch switching array is respectively connected with the tested circuit and the auxiliary device 2 and is communicated with the comprehensive control console 5 through a first controller. The input end of the line parameter system 1 is connected to each phase of the tested line at one time, and sends signals to the first controller by operating the comprehensive control console 5, and the first controller automatically selects a measuring loop and a measuring range, automatically controls the output of the variable frequency power supply and automatically samples, and respectively measures parameters of the line such as positive sequence impedance, zero sequence impedance, positive sequence capacitance, zero sequence capacitance, double-loop mutual inductance, double-loop coupling capacitance and the like.
The first switch switching array comprises a switch driving circuit and a plurality of relays, the normally open contacts of the relays form a switch array, after a driving signal sent by the first controller is received, the switch driving circuit enables corresponding relay coils to be electrified, and then corresponding normally open contacts are opened or closed.
As shown in fig. 3, the auxiliary device 2 includes a second controller, a second switch switching array, a voltage current test module and a megger module; the second controller, the voltage and current testing module and the megohmmeter module are connected to the second switch switching array; the second switch switching array is connected with the first switch switching array, and the second controller is communicated with the comprehensive control console 5. By operating the integrated console 5, a signal is sent to the second controller, which automatically selects the measurement loop and range to measure the induced voltage, induced current, nuclear phase and insulation resistance of each phase, respectively. When the induced electricity is high and the megohmmeter nuclear phase cannot be used, the nuclear phase is generated by an induced electricity method.
As shown in fig. 4, the second switch switching array includes a switch driving circuit and an intermediate relay module, corresponding normally open contacts in the intermediate relay module form a switch array, after receiving a driving signal sent by the second controller, the switch driving circuit powers on corresponding relay coils, so as to open or close the corresponding normally open contacts, and connects corresponding connection terminals by selectively controlling opening and closing of some switches.
As shown in fig. 5, the pair of safety devices 4 includes a fourth controller, an energy release driving device, and a ground switch, the ground switch is connected to the line to be tested, and the fourth controller is in communication with the integrated console 5. When the equipment is not powered on, is not operated for standby after being powered on and is suddenly powered off by the power supply, the pair of safety devices 4 are in a grounding state, so that the safety of the test is ensured. When the mains supply is normal, the comprehensive console 5 sends an instruction to the fourth controller to control the attraction and disconnection of the grounding switch, so as to control the grounding and the grounding division of the pair of safety devices 4; when the grounding switch is in a grounding state and the mains supply is suddenly cut off, the energy release driving device provides power for the attraction coil of the grounding switch, so that the grounding switch is attracted and continuously grounded under the action of the self-holding mechanism, and the purpose of automatic grounding in case of accidental power failure is achieved.
As shown in fig. 3, the contralateral device 3 includes a third controller and a contralateral grounding switch, the contralateral grounding switch is connected with the contralateral mating end of the tested line, and the third controller is communicated with the integrated console 5. The grounding state of the opposite side matching end is controlled by the comprehensive console 5 in a remote control mode, a state result instruction is fed back to the comprehensive console 5 after each step of action of the opposite side matching end, and the comprehensive console 5 sequentially carries out the next step of action after receiving and judging the state of the opposite side matching end correctly.
The comprehensive control console 5 comprises a human-computer interaction terminal and a communication module. An operator can send remote control commands to the line parameter system 1, the auxiliary device 2, the safety device 4 and the contralateral device 3 to execute measurement of each item by selecting a test item on the comprehensive control console 5.
As shown in fig. 6, the working process of the device is as follows:
preparation work before measurement: the line parameter system 1, the auxiliary device 2 and the pair of safety devices 4 are connected with each other through a test line and then connected to a tested overhead line at a test end, and the line opposite side device 3 is connected to an opposite side matching end overhead line.
In the measuring process: after all the devices are powered on, the integrated console 5 is in wireless communication connection with each device, and the opposite device 3 can establish wireless communication connection through a cellular mobile network. Each device is controlled by the integrated console 5.
1. Induction electricity, nuclear phase and insulation resistance measurement:
(1) Measuring electromagnetic induction: the method comprises the steps that the electromagnetic induction voltage/current function is selected, the comprehensive control console 5 sends a three-phase grounding instruction to the opposite side device 3, the opposite side device 3 acts in a three-phase grounding state, and sends a feedback instruction to the comprehensive control console 5, the comprehensive control console 5 opens a corresponding induction item measuring button after judging that the opposite side device 3 acts correctly, and sends an instruction to the auxiliary device 2 by operating a corresponding function button, after receiving the instruction, a second controller of the auxiliary device 2 controls corresponding contacts in a second switch switching array to be conducted, so that a corresponding measuring loop is conducted, and feeds back an action dry contact point signal to the second controller, and after receiving the action feedback instruction sent by the second controller and judging that the action feedback instruction is sent, the comprehensive control console 5 sends a measuring instruction and displays the current state of the device. And sequentially operating and measuring ABC phase electromagnetic induction voltage and induction current of the circuit.
(2) Measuring electrostatic induction: and selecting the function of static induction voltage, sending a three-phase grounding instruction to the opposite side device 3 by the comprehensive console 5, measuring the electromagnetic induction when the opposite side device 3 acts in a three-phase grounding state, and sequentially measuring the ABC-phase static induction voltage of the circuit.
(3) Nuclear phase and insulation resistance measurement:
(1) when a megger phase checking and insulation resistance measurement are carried out by using a megger, a megger method phase checking function is selected, the comprehensive console 5 sends an A phase grounding instruction to the opposite side device 3, the opposite side device 3 acts as an A phase independent grounding state and sends a feedback instruction to the comprehensive console 5, the comprehensive console 5 opens a corresponding nuclear phase item measurement button after judging that the opposite side device 3 acts correctly, sends an instruction to the auxiliary device 2 by operating a software A phase button, and controls a corresponding contact in a second switch switching array to be conducted after a second controller of the auxiliary device 2 receives the instruction, so that an A phase loop is conducted with the megger and feeds back an action dry contact signal to the second controller, and the comprehensive console 5 records a megger measurement result after receiving an action feedback instruction sent by the second controller and judging that the action feedback instruction is correct; sequentially switching on the B phase and the C phase in the same way, and recording the measurement result of the megohmmeter; similarly, the comprehensive console 5 sends a phase B/C grounding instruction to the opposite side device 3 to sequentially complete phase B/C nuclear phase and insulation resistance measurement.
(2) When the induced electricity is too high and the megohmmeter cannot be used, an 'induction method' phase checking function is started, an induced electricity change method phase checking is adopted, an A phase checking function is selected, the comprehensive control console 5 sequentially sends an A phase grounding/B phase grounding/C phase grounding instruction to the opposite side device 3, the opposite side device 3 sequentially feeds back an action state to the comprehensive control console 5, and the comprehensive control console 5 sequentially records the induced electricity numerical value and analyzes the change condition after judging that the opposite side grounding action is correct; if the change condition meets the criterion, the phase checking is correct, otherwise, manual further judgment is needed. And similarly, selecting the phase B/phase C nuclear phase function to complete the phase B/phase C nuclear phase.
2. Line parameter measurement:
(1) The method comprises the steps that a line parameter 'impedance' function is selected, a comprehensive console 5 sends a three-phase grounding instruction to an opposite side device 3, the opposite side device 3 acts in a three-phase grounding state, a feedback instruction is sent to the comprehensive console 5, the comprehensive console 5 opens a starting button after judging that the opposite side device 3 acts correctly, a starting instruction is sent to a first controller of a line parameter system 1 by operating the starting button, the first controller controls corresponding contacts in a first switch switching array to be conducted after receiving the instruction, so that a corresponding impedance measurement loop is conducted, an action dry contact point signal is fed back to the first controller, the comprehensive console 5 receives the action feedback instruction sent by the first controller and judges that the action feedback instruction is correct, then sends a variable frequency power starting instruction, the first controller controls a variable frequency power to be started and feeds back an output value to be displayed on the comprehensive console 5 in real time, and then sends a sampling instruction when the output value reaches a set value, the first controller controls a measurement host to sample, and feeds back the measurement result to the comprehensive console 5, and the measurement result is displayed, stored and printed, and the output is stopped.
(2) And selecting a line parameter 'capacitance' item, sending a three-phase grounding instruction to the opposite side device 3 by the comprehensive control console 5, enabling the opposite side device 3 to act in a three-phase grounding state, and finishing a capacitance measurement item by using the same action logic as an impedance item.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. The utility model provides a disposable wiring high tension transmission line parameter test equipment which characterized in that: the system comprises a line parameter system (1), an auxiliary device (2), a safety device (4), an opposite side device (3) and a comprehensive console (5); the circuit parameter system comprises a circuit parameter system (1), an auxiliary device (2), a safety device (4) and a line parameter system (1), wherein the input end of the circuit parameter system (1) is connected with a tested circuit and used for measuring parameters of the tested circuit, the auxiliary device (2) is connected with the circuit parameter system (1) and used for measuring induction electricity, nuclear phase and insulation resistance, the input end of the safety device (4) is connected with the tested circuit and used for ground protection of the tested circuit end in the test process, an opposite side device (3) is connected with an opposite side matching end of the tested circuit and used for ground matching of the opposite side matching end in the test process, and a comprehensive control console (5) performs signal transmission with the circuit parameter system (1), the control auxiliary device (2), the safety device (4) and the opposite side device (3) in a wireless communication mode so as to perform remote control.
2. The disposable wiring high-voltage transmission line parameter testing device according to claim 1, characterized in that: the line parameter system (1) comprises a first controller, a first switch switching array, a variable frequency power supply module and a measurement host module; the first controller, the variable-frequency power supply module and the measurement host module are connected to the first switch switching array; the first switch switching array is respectively connected with the tested circuit and the auxiliary device (2) and is communicated with the comprehensive control console (5) through a first controller.
3. The disposable wiring high-voltage transmission line parameter testing device of claim 2, characterized in that: the auxiliary device (2) comprises a second controller, a second switch switching array, a voltage and current testing module and a megohmmeter module; the second controller, the voltage and current testing module and the megohmmeter module are connected to the second switch switching array; the second switch switching array is connected with the first switch switching array, and the second controller is communicated with the comprehensive control console (5).
4. The disposable wiring high-voltage transmission line parameter testing device according to claim 1, characterized in that: the safety device (4) comprises a fourth controller, an energy release driving device and a grounding switch, the grounding switch is connected with a tested circuit, and the fourth controller is communicated with the comprehensive control console (5).
5. The disposable wiring high-voltage transmission line parameter testing device of claim 1, characterized in that: the contralateral device (3) comprises a third controller and a contralateral grounding switch, the contralateral grounding switch is connected with the contralateral matching end of the measured circuit, and the third controller is communicated with the comprehensive console (5).
6. The disposable wiring high-voltage transmission line parameter testing device according to claim 1, characterized in that: the comprehensive control console (5) comprises a man-machine interaction terminal and a communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221948962.6U CN218099352U (en) | 2022-07-27 | 2022-07-27 | Disposable wiring high-voltage transmission line parameter testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221948962.6U CN218099352U (en) | 2022-07-27 | 2022-07-27 | Disposable wiring high-voltage transmission line parameter testing equipment |
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| Publication Number | Publication Date |
|---|---|
| CN218099352U true CN218099352U (en) | 2022-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221948962.6U Active CN218099352U (en) | 2022-07-27 | 2022-07-27 | Disposable wiring high-voltage transmission line parameter testing equipment |
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| CN (1) | CN218099352U (en) |
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- 2022-07-27 CN CN202221948962.6U patent/CN218099352U/en active Active
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