CN211402596U - High-frequency quick trial delivery positioning device - Google Patents
High-frequency quick trial delivery positioning device Download PDFInfo
- Publication number
- CN211402596U CN211402596U CN201921883448.7U CN201921883448U CN211402596U CN 211402596 U CN211402596 U CN 211402596U CN 201921883448 U CN201921883448 U CN 201921883448U CN 211402596 U CN211402596 U CN 211402596U
- Authority
- CN
- China
- Prior art keywords
- circuit
- amplifier
- capacitor
- resistor
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a positioner is sent in quick examination of high frequency belongs to power cable detection technical field, comprises location host computer, locating component and user side, the locating component joint sets up on high-voltage transmission line, the location host computer passes through the wire and is connected with locating component, locating component and user side wireless connection, locating component receives calliper and telescopic insulator spindle including receiving calliper and telescopic insulator spindle, receives built-in filter circuit of calliper, detection circuitry, power supply circuit, controller circuit and transmitting circuit, and filter circuit and detection circuitry link to each other, and detection circuitry and controller circuit link to each other, and controller circuit and transmitting circuit link to each other. This scheme has automatic discharge function, the good forbidden high-voltage function that starts of ground connection, overcurrent protection function in an organic whole to need not follow the wiring in addition and test, easy operation is particularly suitable for the field operation, and is whole light, and waterproof resistance to compression design adapts to transportation and outdoor environment requirement.
Description
Technical Field
The utility model relates to a power cable detects technical field, especially relates to positioner is sent in high frequency quick examination.
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. The method is effective for pure overhead lines, but the existing pure overhead lines are very few, most of the existing pure overhead lines are overhead lines and cable mixed lines, so that cable faults cannot be seen during inspection, and because the cable faults are mostly high-resistance faults, the insulation resistance of a normal section is lower than that of a fault section under special conditions, rush-repair personnel can hardly judge the cable faults from test data, and the possibility of misjudgment is very high.
In order to solve the problems, after a rush-repair worker carries out sectional insulation test on a distribution line, a trial delivery mode of a power supply system is adopted, namely a pole-mounted switch or a switching station switch of the distribution line is disconnected, the line is divided into a plurality of sections, the trial delivery is carried out section by applying the power supply system, and when the switch of a certain section of line is closed, the power supply system protects and acts or sends a grounding signal, the section of line is proved to be a fault section. However, this method has a great risk, which may cause a short-term power failure or an influence on the voltage quality of a large-area user, and has a great impact on the power supply system, and also in the insulation test process of a faulty distribution line, the distribution line is in a cold standby state, and once a certain user uses a generator without specification, the power is reversely supplied to the line, an instantaneous high voltage is formed on the distribution line, and an electric shock to a tester may be caused.
The existing equipment on the market has single function, complex operation, excessive parts and complex use, can only solve the problem of single-phase earth fault or pressurization, and is often matched with manual line patrol in an auxiliary way.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a positioner is sent in high frequency examination fast, solves the technical problem that current high-voltage line needs the manual work to patrol the line and look for the trouble.
Positioner is sent in quick examination of high frequency comprises location host computer, locating component and user side, the locating component joint sets up on high-voltage transmission line, the location host computer passes through the wire and is connected with the locating component, locating component and user side wireless connection, the locating component is including receiving calliper and telescopic insulator spindle, receives built-in filter circuit of calliper, detection circuitry, power supply circuit, controller circuit and transmitting circuit, and filter circuit and detection circuitry link to each other, and detection circuitry and controller circuit link to each other, and controller circuit and transmitting circuit link to each other, and transmitting circuit and power supply circuit link to each other, and power supply circuit still links to each other with administrative circuit, and filter circuit is connected with receiving calliper.
And an optical coupling isolator is also arranged between the receiving caliper and the filter circuit.
The filter circuit comprises capacitors C1-C6, resistors R2-R4, resistors R4-R4, an amplifier IC 14 and an amplifier IC 14, wherein one end of the capacitor C4 is connected with the output end of the acoustoelectric sensor, the other end of the capacitor C4 is connected with one end of the resistor R4, the other end of the capacitor R4 is connected with one end of the capacitor C4, one end of the capacitor C4 and one end of the resistor R4, the other end of the capacitor C4 is connected with one end of the resistor R4 and the output end of the amplifier IC 14, the other end of the capacitor C4 is connected with the negative input end of the amplifier IC 14 and the other end of the resistor R4, one ends of the resistor R4 and the resistor R4 are connected with the positive pole of the amplifier IC 14, one end of the capacitor R4 is connected with one end of the resistor R4 and the output end of the amplifier IC 4, the other end of the capacitor C5 is connected to the other end of the resistor R4 and the negative input terminal of the amplifier IC1B, respectively, one end of the capacitor C6 is connected to the output terminal of the amplifier IC1B, and the other end is connected to one end of the resistor R8.
The detection circuit detects amplitude and comprises a mos tube Q1, an amplifier IC2B, resistors R15 and R18-19, wherein the output end of the mos tube Q1 is connected with the positive input end of the amplifier IC2B, one end of the output end of the mos tube Q1 is connected with the negative input end of the resistor R15 amplifier IC2B, the other end of the output end of the amplifier IC2B is connected with the output end of the amplifier IC2B, and the resistors R18-19 are connected in series at the output end of the amplifier IC 2B.
The positioning host comprises an engineering plastic box, wherein 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 ground protection circuit and an overcurrent protection circuit are arranged in the engineering plastic box, 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 ground protection circuit, and the management circuit is connected with the overcurrent protection circuit.
The engineering plastic box is provided with an output high-voltage wire, a display screen, a brake separating button, a switch-on button, a trial delivery and positioning switching button, a voice output hole, a power socket, a grounding column and a voltage regulator knob, wherein 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.
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 voice broadcast circuit carries out auxiliary voice prompt on the whole operation process. The color screen display circuit and the voice broadcasting circuit prompt and broadcast results of line test transmission in a way of 'normal line', 'hidden trouble in the line' and 'fault line'. The intermittent specific high-frequency signal which is generated by the high-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 prepared 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 circuits in the positioning host machine are all integrated circuits in the prior art, and the management circuit is STM32 minimum system circuit.
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.
The user side is a mobile phone or a tablet computer. The special receiving software for the mobile phone APP (the existing released collecting software can be used by direct downloading) can be installed in the intelligent mobile phone and is used for receiving and displaying signals detected by the receiving calipers. The special receiving software for the mobile phone APP 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 utility model adopts the above technical scheme, the utility model discloses following technological effect has:
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 a system block diagram of the circuit portion of the positioning assembly of the present invention.
Fig. 2 is a system block diagram of the positioning host of the present invention.
Fig. 3 is a flow chart of the utility model used in the field.
Fig. 4 is a schematic diagram of a filter circuit of the positioning assembly of the present invention.
Fig. 5 is a schematic diagram of a detection circuit of the positioning assembly of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, preferred embodiments are described in detail. 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.
As shown in fig. 1, the utility model discloses positioner is sent in high frequency try fast contains to send positioner to 10kV distribution lines's high frequency try fast, comprises location host computer, locating component and user side, installs the special software that receives of APP that this company's development has published on the user side.
The positioning host is shown in fig. 2, and comprises a power supply circuit 11, a booster circuit 12, an output wiring device 13, a management circuit 10, a high-frequency positioning circuit 16, a color screen display circuit 14, a voice broadcast circuit 15, an automatic discharge circuit 19, a ground protection circuit 17 and an overcurrent protection circuit 18, wherein the power supply 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 further connected with the management circuit 10, the booster circuit 12 is further connected with the high-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 high-frequency positioning circuit 16, the management circuit 10 is connected with the voice broadcast circuit 15, the management circuit 10 is connected with the automatic discharge circuit 19, the management circuit 10 is connected with the ground protection circuit 17, and the management circuit 10 is connected with the 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 and installed in an engineering plastic box, so that the pressure-resistant and damp-proof portable outdoor plastic box is convenient to carry and suitable for outdoor field use.
The positioning assembly comprises a receiving caliper and a telescopic insulating rod, as shown in fig. 1, wherein the receiving caliper has a filter circuit 21, a detection circuit 22, a power supply circuit 23, a management circuit 25 and a transmitting circuit 24. The filter circuit 21 is connected with the detection circuit 22, the detection circuit 22 is connected with the management circuit 25, the management circuit 25 is connected with the emission circuit 24, the emission circuit 24 is connected with the power circuit 23, and the power circuit 23 is also connected with the management circuit 25.
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. 3 is a flow chart of the field application of the present invention, wherein a high DC voltage is applied to a fault line for testing by means of the trial delivery function of the intelligent trial delivery positioning host of part 1, and the fault line is checked in sections by the disconnecting link switch of the fault line until the fault line cannot be segmented; then, by means of the positioning function of the intelligent trial-sending positioning host of the part 1, high-frequency signals are added to the last section of a fault line along with direct current high voltage, the range of 1-2km is provided under most conditions, about twenty poles and towers are arranged, the receiving calipers of the positioning component of the part 2 are used for testing and positioning the line of the poles and towers in combination with special receiving software of the part 3 of mobile phone APP, walking position searching is carried out according to the prompt of the mobile phone APP software, and positioning is completed after a fault point is found. After the fault point is repaired, trial sending is carried out on the fault line section and the whole line by means of the trial sending function of the intelligent trial sending positioning host of the part 1, and power transmission can be recovered after the trial sending is qualified, namely the emergency repair is finished.
As shown in fig. 4, the filter circuit includes capacitors C1 to C6, resistors R2 to R4, resistors R4 to R4, an amplifier IC 14 and an amplifier IC 14, one end of the capacitor C4 is connected to an output end of the acoustoelectric sensor, the other end of the capacitor R4 is connected to one end of the capacitor C4, one end of the capacitor C4 and one end of the resistor R4, the other end of the capacitor C4 is connected to one end of the resistor R4 and an output end of the amplifier IC 14, the other end of the capacitor C4 is connected to a negative input end of the amplifier IC 14 and the other end of the resistor R4, one ends of the resistor R4 and the resistor R4 are both connected to a positive electrode of the amplifier IC 14, one end of the resistor R4 is connected to an output end of the amplifier IC 14, the other end of the resistor R4 is connected to one end of the capacitor C4, the other end of the capacitor C4 and the output end of the amplifier IC 4 are both connected to the output end of the capacitor C4, the other end of the capacitor C5 is connected to the other end of the resistor R4 and the negative input terminal of the amplifier IC1B, respectively, one end of the capacitor C6 is connected to the output terminal of the amplifier IC1B, and the other end is connected to one end of the resistor R8.
As shown in FIG. 5, the detection circuit detects the amplitude, the detection circuit comprises a mos tube Q1, an amplifier IC2B and resistors R15 and R18-19, the output end of the mos tube Q1 is connected with the positive input end of the amplifier IC2B, one end of the mos tube Q1 is connected with the negative input end of the amplifier IC2B of a resistor R15, the other end of the mos tube Q1 is connected with the output end of the amplifier IC2B, and the resistors R18-19 are connected in series with the output end of the amplifier IC 2B.
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. High frequency tries to send positioner fast, its characterized in that: constitute by location host computer, locating component and user side, the locating component joint sets up on high tension transmission line, the location host computer passes through the wire and is connected with locating component, locating component and user side wireless connection, locating component is including receiving calliper and telescopic insulator spindle, receives built-in filter circuit of calliper, detection circuitry, power supply circuit, controller circuit and transmitting circuit, and filter circuit and detection circuitry link to each other, and detection circuitry and controller circuit link to each other, and controller circuit and transmitting circuit link to each other, and transmitting circuit and power supply circuit link to each other, and power supply circuit still links to each other with management circuit, and filter circuit is connected with receiving calliper.
2. The high frequency fast trial positioning apparatus of claim 1, wherein: and an optical coupling isolator is also arranged between the receiving caliper and the filter circuit.
3. The high frequency fast trial positioning apparatus of claim 1, wherein: the filter circuit comprises capacitors C1-C6, resistors R2-R4, resistors R4-R4, an amplifier IC 14 and an amplifier IC 14, wherein one end of the capacitor C4 is connected with the output end of the acoustoelectric sensor, the other end of the capacitor C4 is connected with one end of the resistor R4, the other end of the capacitor R4 is connected with one end of the capacitor C4, one end of the capacitor C4 and one end of the resistor R4, the other end of the capacitor C4 is connected with one end of the resistor R4 and the output end of the amplifier IC 14, the other end of the capacitor C4 is connected with the negative input end of the amplifier IC 14 and the other end of the resistor R4, one ends of the resistor R4 and the resistor R4 are connected with the positive pole of the amplifier IC 14, one end of the capacitor R4 is connected with one end of the resistor R4 and the output end of the amplifier IC 4, the other end of the capacitor C5 is connected to the other end of the resistor R4 and the negative input terminal of the amplifier IC1B, respectively, one end of the capacitor C6 is connected to the output terminal of the amplifier IC1B, and the other end is connected to one end of the resistor R8.
4. A high frequency fast trial-send positioning apparatus according to claim 3, wherein: the detection circuit detects amplitude and comprises a mos tube Q1, an amplifier IC2B, resistors R15 and R18-19, wherein the output end of the mos tube Q1 is connected with the positive input end of the amplifier IC2B, one end of the output end of the mos tube Q1 is connected with the negative input end of the resistor R15 amplifier IC2B, the other end of the output end of the amplifier IC2B is connected with the output end of the amplifier IC2B, and the resistors R18-19 are connected in series at the output end of the amplifier IC 2B.
5. The high frequency fast trial positioning apparatus of claim 1, wherein: the positioning host comprises an engineering plastic box, wherein 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 ground protection circuit and an overcurrent protection circuit are arranged in the engineering plastic box, 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 ground protection circuit, and the management circuit is connected with the overcurrent protection circuit.
6. The high frequency fast trial positioning apparatus of claim 5, wherein: the engineering plastic box is provided with an output high-voltage wire, a display screen, a brake separating button, a switch-on button, a trial delivery and positioning switching button, a voice output hole, a power socket, a grounding column and a voltage regulator knob, wherein 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.
7. The high frequency fast trial positioning apparatus of claim 1, wherein: the user side is a mobile phone or a tablet computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921883448.7U CN211402596U (en) | 2019-11-05 | 2019-11-05 | High-frequency quick trial delivery positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921883448.7U CN211402596U (en) | 2019-11-05 | 2019-11-05 | High-frequency quick trial delivery positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211402596U true CN211402596U (en) | 2020-09-01 |
Family
ID=72213962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921883448.7U Active CN211402596U (en) | 2019-11-05 | 2019-11-05 | High-frequency quick trial delivery positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211402596U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466611A (en) * | 2021-05-28 | 2021-10-01 | 深圳供电局有限公司 | Distribution lines fault positioning system |
-
2019
- 2019-11-05 CN CN201921883448.7U patent/CN211402596U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466611A (en) * | 2021-05-28 | 2021-10-01 | 深圳供电局有限公司 | Distribution lines fault positioning system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104678259A (en) | Single-phase earth fault finding device | |
| CN105548780A (en) | Electric automobile DC charging pile interface circuit simulator | |
| CN211402596U (en) | High-frequency quick trial delivery positioning device | |
| CN112924920A (en) | Portable measuring device and parameter measuring method for high-voltage electromagnetic voltage transformer | |
| CN112415429B (en) | Medium voltage grounding fault intelligent diagnostic instrument | |
| CN110850177A (en) | High-frequency pulse digital ground resistance tester | |
| CN208580172U (en) | One kind being grounded situation device for fast detecting for power system device | |
| CN110095692A (en) | It is a kind of with positioning function direct current examination send instrument and its positioning examination delivery method | |
| CN210803636U (en) | Direct current trial delivery instrument with positioning function | |
| CN203101571U (en) | Secondary common loop multipoint earth fault testing device | |
| CN111965455A (en) | Mobile power equipment test system | |
| CN205123247U (en) | Modular overvoltage protection device power frequency discharge detection test device | |
| CN111208391A (en) | Line ground fault finder adopting alternating current and direct current signals and detection method | |
| CN203658510U (en) | Voltage transformer secondary circuit grounding detector | |
| CN110927463A (en) | Insulation resistance tester for safety tools and instruments | |
| CN204142887U (en) | Wireless remote control type instrument for testing polarity of current transformer | |
| CN205539321U (en) | 485 line error detection ware | |
| CN202600093U (en) | DC earthing point detector for electrical network line | |
| CN204789864U (en) | Phase to earth fault seeks device | |
| CN112557805A (en) | Auxiliary device and method for quickly searching faults of overhead line | |
| CN207866950U (en) | A kind of portable cable fault positioning power supply | |
| CN209896445U (en) | Power supply integrated device | |
| CN203965552U (en) | Hyperchannel low-voltage leakage detector | |
| JP2005172734A (en) | Easy impulse testing device | |
| CN211627701U (en) | Cable test power supply device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |