CN210803636U - Direct current trial delivery instrument with positioning function - Google Patents
Direct current trial delivery instrument with positioning function Download PDFInfo
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- CN210803636U CN210803636U CN201920734288.3U CN201920734288U CN210803636U CN 210803636 U CN210803636 U CN 210803636U CN 201920734288 U CN201920734288 U CN 201920734288U CN 210803636 U CN210803636 U CN 210803636U
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Abstract
The utility model provides a take positioning function's direct current examination to send appearance belongs to power cable and detects technical field, discloses a direct current examination to 10kV distribution lines and have positioning function and send the instrument, send positioning host, determine module and receiver triplex by intelligence examination. The intelligent trial transmission positioning host sends a signal which is coupled and superposed on the direct-current high voltage and contains a specific frequency to the line to be detected, the detection assembly is close to the line to be detected to obtain a detection signal, the detection signal is processed to obtain detection data and position information and then sent to the receiver, the receiver compares the detection data with a preset value, and fault point information is displayed according to a result. This scheme provides one set of direct current examination that has locate function and sends the appearance, has examination and send the function, has locate function again, not only can solve single-phase earth fault, solves heterogeneous, multiple spot, hidden danger trouble fast, and instrument positioning accuracy is within 50cm, solves the problem that needs the manual work to patrol the line and look for the trouble.
Description
Technical Field
The utility model relates to a power cable detects technical field, especially, relates to a take positioning function's direct current examination to send appearance.
Background
After a 10kV distribution line has a fault, a normal state processing mode generally adopted is that full line inspection and an insulation megger judge the insulation resistance of the line to search the fault, namely an insulation test comparison method. However, this method is not effective in the south of China when the line leakage increases due to moisture.
After the maintenance, a trial-sending mode of a power supply system is often adopted. However, this method has a great risk, which may cause a short-term power failure or an impact on the voltage quality of a large-area user, and also has a great impact on the power supply system, and an instantaneous high voltage is formed on the distribution line, which may cause an electric shock to the tester.
The direct current examination that uses to 10kV distribution lines on the existing market send the appearance, has not only solved the unable problem that can not use of insulating megger under humid environment, has solved moreover and has avoided using power supply system to carry out the problem of trying the power transmission.
Because the direct current trial transmission instrument is a way of trial transmission of lines in sections, the range of the fault line is checked and reduced until the fault line cannot be subdivided. However, even after the fault has the smallest fault section, a manual inspection or other methods are still needed to be matched to finally find the fault point.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a take positioning function's direct current examination to send appearance solves the technical problem among the background art. The purpose provides a set of direct current examination that has locate function and sends the appearance, has examination to send the function promptly, has locate function again, not only can solve single-phase earth fault, can solve heterogeneous, multiple spot, hidden danger trouble fast moreover, and instrument positioning accuracy is within 50cm, and the problem that needs the manual work to patrol the line and look for the trouble is thoroughly solved to one set of instrument.
In order to solve the above problem, the utility model adopts the following technical scheme:
the utility model provides a take positioning function's direct current examination to send appearance, includes that intelligence examination is sent location host computer, determine module and receiver, intelligence examination is sent location host computer and is passed through output high-voltage line and line connection, determine module sets up on the circuit, receiver and determine module wireless connection.
Furthermore, the intelligent trial delivery positioning host comprises an engineering plastic box, wherein a power circuit, a booster circuit, an output wiring device, a management circuit, a special frequency positioning circuit, a color screen display circuit, a voice broadcasting circuit, an automatic discharge circuit, a grounding protection circuit and an overcurrent protection circuit are arranged in the engineering plastic box, the power circuit is connected with the booster circuit, the booster circuit is connected with the output wiring device and the management circuit, the booster circuit is also connected with the special frequency positioning circuit, the management circuit is connected with the color screen display circuit, the management circuit is connected with the special frequency positioning circuit, the management circuit is connected with the voice broadcasting circuit, the management circuit is connected with the automatic discharge circuit, the management circuit is connected with the grounding protection circuit, and the management circuit is connected with the overcurrent protection circuit.
Further, be provided with output high-voltage line, display screen, separating brake button, combined floodgate button, examination and send and fix a position switching button, pronunciation output hole, supply socket, ground connection post and voltage regulator knob on the engineering plastic case, the pronunciation output hole sets up the side at the engineering plastic case, supply socket is connected with external power source through the power cord.
Further, the detection assembly comprises a receiving caliper, a telescopic insulating rod and a detection circuit, the detection circuit is installed in the waterproof engineering plastic receiving caliper shell, a movable buckle is arranged at one end of the caliper, a clamping line to be tested is connected with the caliper, and the telescopic insulating rod is connected with the other end of the caliper in a rotating mode.
Furthermore, the detection circuit comprises a signal amplification circuit, a signal filtering circuit, a signal correction circuit, a management circuit and a transmitting circuit, wherein the signal amplification circuit is connected with the signal filtering circuit, the signal filtering circuit is connected with the signal correction circuit, the signal correction circuit is connected with the management circuit, and the management circuit is connected with the transmitting circuit.
Further, the receipt calliper of detection component can install manual operation on the telescopic insulator spindle, also can install on unmanned aerial vehicle, comes the removal detection through operation unmanned aerial vehicle operation.
Further, the receiver is a mobile phone, a tablet computer or a handheld display.
The trial delivery function of the intelligent trial delivery positioning host is used, direct current high voltage is added to a fault line for testing, and the fault line is checked in a segmentation mode through a disconnecting link switch of the fault line until segmentation cannot be carried out; secondly, by means of the positioning function of the intelligent transmission trial positioning host, a special frequency signal is added to the last section of the fault line along with direct current high voltage, the range is generally 1-2km, 19-21 towers are used, the receiving calipers of the detection assembly are used for testing and positioning the line of the towers in combination with a receiver, the line is searched by walking according to the prompt of APP software of a mobile phone, and the positioning is finished after the fault point is found; after the fault point is repaired, trial delivery is carried out on the fault line section and the whole line by means of the trial delivery function of the intelligent trial delivery positioning host again, and power transmission can be recovered after the trial delivery is qualified, namely the emergency repair is finished.
Further, the detecting component is including receiving calliper and telescopic insulator spindle, wherein receives calliper built-in filter circuit, detection circuitry, power supply circuit, management circuit and transmitting circuit, and the receipt calliper of surveying the subassembly can be installed manual operation on the telescopic insulator spindle, also can install on unmanned aerial vehicle, moves the detection through operation unmanned aerial vehicle operation, and detecting component and receiver are in the same place, become itself just have the detecting component of suggestion fault detection result information.
The utility model adopts the above technical scheme, the utility model discloses there is as follows showing the effect:
the utility model discloses the host computer has assembled automatic discharge function, not well forbidding to start high-pressure function, overcurrent protection function in an organic whole of ground connection to need not continue the wiring in addition to test, easy operation is particularly suitable for the field operation, and is whole light, waterproof resistance to compression design adaptation transportation and outdoor environment requirement. The whole set of instrument makes full use of the progress of modern electronic hardware technology and the development achievement of mobile phone software intellectualization, and the intelligent operation process and result prompting device can not only solve single-phase earth fault, but also solve two-phase, multi-phase or multi-point earth fault, especially hidden danger earth fault, namely the problem that the circuit can be used for power transmission but frequently trips to cut off the power supply when the environmental humidity is high, thereby meeting the requirement of quickly and accurately finding a fault point in a humid environment and quickly achieving the purpose of power transmission test.
Drawings
Fig. 1 is the embodiment of the present invention discloses a system block diagram of an intelligent trial-sending positioning host.
Fig. 2 is the embodiment of the utility model provides an appearance schematic diagram of location host computer is sent in the intelligence examination.
Fig. 3 is a system block diagram of the detection assembly according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of finding a fault point according to an embodiment of the present invention.
Fig. 5 is a flow chart of the field use of the present invention.
The labels in the figure are: 1-intelligent trial delivery positioning host, 2-detection assembly, 3-receiver, 4-line, 10-management circuit, 11-power circuit, 12-booster circuit, 13-output wiring device, 14-color screen display circuit, 15-voice broadcast circuit, 16-special frequency positioning circuit, 17-grounding protection circuit, 18-overcurrent protection circuit, 19-automatic discharge circuit, 21-engineering plastic box, 22-output high voltage line, 23-display screen, 24-opening button, 25-closing button, 26-trial delivery and positioning switching button, 27-voice output hole, 28-power socket, 29-grounding column, 30-voltage regulator knob, 31-signal amplification circuit, 32-signal filter circuit, 33-signal correction circuit, 34-management circuit, 35-transmission circuit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and by referring to preferred embodiments. It should be understood, however, that the numerous specific details set forth in the specification are merely set forth to provide a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.
A direct current trial delivery instrument with a positioning function is disclosed, an intelligent trial delivery positioning host is shown in figure 1, the circuit of the intelligent trial delivery positioning host comprises a power circuit 11, a booster circuit 12, an output wiring device 13, a management circuit 10, a special frequency positioning circuit 16, a color screen display circuit 14, a voice broadcasting circuit 15, an automatic discharging circuit 19, a grounding protection circuit 17 and an overcurrent protection circuit 18, wherein the power circuit 11 is connected with the booster circuit 12, the booster circuit 12 is connected with the output wiring device 13, the booster circuit 12 is also connected with the management circuit 10, the booster circuit 12 is also connected with the special frequency positioning circuit 16, the management circuit 10 is connected with the color screen display circuit 14, the management circuit 10 is connected with the special frequency positioning circuit 16, the management circuit 10 is connected with the voice broadcasting circuit 15, the management circuit 10 is connected with the automatic discharging circuit 19, the management circuit 10 is connected with the grounding protection circuit 17, the management circuit 10 is connected to an overcurrent protection circuit 18.
The management circuit 10 monitors the whole boosting process of the boosting circuit, outputs and displays the whole boosting process in real time, and starts the protection circuit in case of an accident.
All the parts are integrated into one instrument, the appearance is as shown in the attached drawing 2, the instrument is installed in an engineering plastic box 21 and comprises an output high-voltage wire 22, a display screen 23, a brake separating button 24, a switch-on button 25, a trial delivery and positioning switching button 26, a voice output 27, a power socket 28, a grounding column 29 and a voltage regulator knob 30, and the instrument is integrally pressure-resistant, moisture-proof, convenient to carry and suitable for being used outdoors on site. The circuits used in the scheme belong to the existing circuits, and the specific schematic diagrams can be directly obtained by searching on the internet or books, and are not described in detail herein.
The detection assembly comprises a receiving caliper, a telescopic insulating rod and a detection circuit, wherein the detection circuit is shown in figure 3 and comprises a signal amplification circuit 31, a signal filtering circuit 32, a signal correction circuit 33, a management circuit 34 and a transmitting circuit 35. The signal amplifying circuit 31 is connected with the signal filtering circuit 32, the signal filtering circuit 32 is connected with the signal correcting circuit 33, the signal correcting circuit 33 is connected with the management circuit 34, and the management circuit 34 is connected with the transmitting circuit 35.
The transmitting circuit is internally provided with an SIM card and can be connected to the Internet through GPRS.
Whole circuit installation in can waterproof engineering plastics receive calliper casing, calliper one end has movable buckle, can make things convenient for the joint examination circuit that awaits measuring, the calliper other end can conveniently connect the telescopic insulator spindle soon.
Fig. 4 is a schematic diagram of the utility model for finding specific fault points on site by using positioning, which comprises an intelligent trial-sending positioning host 1, a detection component 2 and a receiver 3; the intelligent trial transmission positioning host 1 is used for outputting an intermittent specific high-frequency signal larger than 100kHz, superposing the special frequency signal on a direct-current high voltage and applying the superposed special frequency signal to a line 4; the detection assembly 2 is used for sensing the output detection signal, processing and sending detection data and position information; the receiver 3 is used for receiving the detection data and the position information and displaying the test result.
Fig. 5 is a flow chart of the field use of the utility model, firstly, the direct current high voltage is added to the fault line for testing by means of the trial delivery function of the intelligent trial delivery positioning host, and the fault line is checked in sections through the disconnecting link switch of the fault line until the fault line can not be segmented; and then, by means of the positioning function of the intelligent trial transmission positioning host, a special frequency signal is added to the last section of the fault line along with direct current high voltage, the range of 1-2km is provided under most conditions, about twenty towers are arranged, the line of the tower is tested and positioned by using the receiving calipers of the detection assembly and a receiver, the walking position is searched according to the prompt of the APP software of the mobile phone, and the positioning is finished after the fault point is found. After the fault point is repaired, trial delivery is carried out on the fault line section and the whole line by means of the trial delivery function of the intelligent trial delivery positioning host again, and power transmission can be recovered after the trial delivery is qualified, namely the emergency repair is finished.
A direct-current trial transmission instrument with a positioning function for a 10kV distribution line comprises an intelligent trial transmission positioning host, a detection assembly and a receiver. The intelligent trial delivery positioning host has the function of replacing a power supply system to trial delivery of the line and is also beneficial to using the trial delivery function. After trial transmission is carried out for a plurality of times, the fault range is quickly reduced, and a special frequency signal is superposed on a direct-current high voltage and then is applied to a circuit under the condition of unchanged wiring; the receiving calipers of the detection assembly are added on different positions of a line to be detected to receive special frequency signals, fault distance can be indicated through the existing distance measuring and calculating algorithm according to the signal amplitude and the positioning function of the handheld receiving receiver, and fault point results are displayed through the receiver.
The intelligent trial-sending positioning host comprises a power supply circuit, a booster circuit, an output wiring device, a management circuit, a special frequency positioning circuit, a color screen display circuit, a voice broadcasting circuit, an automatic discharge circuit, a grounding protection circuit and an overcurrent protection circuit, wherein the power supply circuit is connected with the booster circuit, the booster circuit is connected with the output wiring device, the booster circuit is further connected with the management circuit, the booster circuit is further connected with the special frequency positioning circuit, the management circuit is connected with the color screen display circuit, the management circuit is connected with the special frequency positioning circuit, the management circuit is connected with the voice broadcasting circuit, the management circuit is connected with the automatic discharge circuit, the management circuit is connected with the grounding protection circuit, and the management circuit is connected with the overcurrent protection circuit.
The color screen display circuit performs display monitoring on the whole operation process, uses a visual display screen in sunlight, facilitates observation of a user, and has a touch setting function.
The color screen display circuit and the voice broadcast circuit prompt and broadcast the whole operation process.
The intermittent specific high-frequency signal which is generated by the specific frequency positioning circuit and is larger than 100kHz is firstly added to the outlet of the booster circuit in a carrier mode and then is added to a fault line through an output wiring device to form a positioning signal.
The grounding protection circuit has the function of forbidding starting high voltage when the grounding is not good.
The overcurrent protection circuit has overcurrent and output short-circuit protection functions.
The automatic discharge circuit has the function of discharging the charges stored in the instrument and the circuit after the test is finished or the power is cut off accidentally.
The output wiring device is used for winding and arranging the high-voltage output line, and the matched high-voltage output line is a 30-meter long and 30kV voltage-resistant silica gel line so as to meet the requirement of a long output line on site and be convenient to carry and use.
The whole circuit is arranged in an engineering plastic box which can be carried by hand, is compression-resistant and damp-proof and is convenient to carry.
The positioning trial sending process is as follows:
the trial delivery function of the intelligent trial delivery positioning host is used, direct current high voltage is added to a fault line for testing, and the fault line is checked in a segmentation mode through a disconnecting link switch of the fault line until segmentation cannot be carried out; secondly, by means of the positioning function of the intelligent transmission trial positioning host, a special frequency signal is added to the last section of the fault line along with direct current high voltage, the range is generally 1-2km, about twenty towers are used, the receiving calipers of the detection assembly are combined with a receiver to test and position the line of the towers, the walking position is searched according to the prompt of mobile phone APP software (existing), and the positioning is finished after the fault point is found; after the fault point is repaired, trial delivery is carried out on the fault line section and the whole line by means of the trial delivery function of the intelligent trial delivery positioning host again, and power transmission can be recovered after the trial delivery is qualified, namely the emergency repair is finished.
The detection assembly comprises a receiving caliper and a telescopic insulating rod, wherein the receiving caliper is internally provided with a filter circuit, a detection circuit, a power circuit, a management circuit and a transmitting circuit, the receiving caliper of the detection assembly can be installed on the telescopic insulating rod for manual operation and also can be installed on an unmanned aerial vehicle, the unmanned aerial vehicle is operated to move and detect, the detection assembly and the receiver are combined together, and the detection assembly becomes the detection assembly with the function of prompting the fault detection result information.
The receiver is installed in the intelligent cell-phone by cell-phone APP special use receiving software for receiving shows the signal that the receipt calliper detected.
The receiver comprises functions of fault position distance far and near prompt and caliper battery voltage display.
The special receiving software for the mobile phone APP can be installed in a plurality of intelligent mobile phones, and the searching process of the line fault position can be monitored by a plurality of people.
The special receiving software for the mobile phone APP and the smart phone can be replaced by a handheld special receiver with a liquid crystal display.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a take positioning function's direct current examination to send appearance, its characterized in that includes that intelligence examination is sent location host computer, determine module and receiver, intelligence examination is sent the location host computer and is passed through output high-voltage line and line connection, determine module sets up on the circuit, receiver and determine module wireless connection.
2. The DC trial transfer instrument with the positioning function according to claim 1, the intelligent trial delivery positioning host comprises an engineering plastic box, a power supply circuit, a booster circuit, an output wiring device, a management circuit, a special frequency positioning circuit, a color screen display circuit, a voice broadcasting circuit, an automatic discharging circuit, a grounding protection circuit and an overcurrent protection circuit are arranged in the engineering plastic box, the power circuit is connected with the booster circuit, the booster circuit is connected with the output wiring device, the booster circuit is further connected with the management circuit, the booster circuit is further connected with the special frequency positioning circuit, the management circuit is connected with the color screen display circuit, the management circuit is connected with the special frequency positioning circuit, the management circuit is connected with the voice broadcasting circuit, the management circuit is connected with the automatic discharging circuit, the management circuit is connected with the grounding protection circuit, and the management circuit is connected with the overcurrent protection circuit.
3. The direct-current trial delivery instrument with the positioning function according to claim 2, wherein the engineering plastic box is provided with an output high-voltage wire, a display screen, a switching-off button, a switching-on button, a trial delivery and positioning switching button, a voice output hole, a power socket, a grounding column and a voltage regulator knob, the voice output hole is formed in the side edge of the engineering plastic box, and the power socket is connected with an external power supply through a power line.
4. The direct current test feeding instrument with the positioning function according to claim 1, wherein the detection assembly comprises a receiving caliper, a telescopic insulating rod and a detection circuit, the detection circuit is arranged in a waterproof engineering plastic receiving caliper shell, a movable buckle is arranged at one end of the caliper and is clamped with a circuit to be tested, and the telescopic insulating rod is screwed at the other end of the caliper.
5. The DC test-feeding instrument with the positioning function according to claim 4, wherein the detection circuit comprises a signal amplification circuit, a signal filtering circuit, a signal correction circuit, a management circuit and a transmitting circuit, wherein the signal amplification circuit is connected with the signal filtering circuit, the signal filtering circuit is connected with the signal correction circuit, the signal correction circuit is connected with the management circuit, and the management circuit is connected with the transmitting circuit.
6. The direct current trial delivery instrument with the positioning function according to claim 4, wherein the receiving calipers of the detection assembly are manually operated by being installed on a telescopic insulating rod, and can also be installed on an unmanned aerial vehicle, and the detection is moved by operating the unmanned aerial vehicle.
7. The direct current trial sending instrument with the positioning function according to claim 1, wherein the receiver is a mobile phone, a tablet computer or a handheld display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920734288.3U CN210803636U (en) | 2019-05-22 | 2019-05-22 | Direct current trial delivery instrument with positioning function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920734288.3U CN210803636U (en) | 2019-05-22 | 2019-05-22 | Direct current trial delivery instrument with positioning function |
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| CN210803636U true CN210803636U (en) | 2020-06-19 |
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| CN201920734288.3U Active CN210803636U (en) | 2019-05-22 | 2019-05-22 | Direct current trial delivery instrument with positioning function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095692A (en) * | 2019-05-22 | 2019-08-06 | 广西电友科技发展有限公司 | It is a kind of with positioning function direct current examination send instrument and its positioning examination delivery method |
-
2019
- 2019-05-22 CN CN201920734288.3U patent/CN210803636U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095692A (en) * | 2019-05-22 | 2019-08-06 | 广西电友科技发展有限公司 | It is a kind of with positioning function direct current examination send instrument and its positioning examination delivery method |
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