CN205920179U - High voltage transmission lines construction grounding detection device - Google Patents
High voltage transmission lines construction grounding detection device Download PDFInfo
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- CN205920179U CN205920179U CN201620507143.6U CN201620507143U CN205920179U CN 205920179 U CN205920179 U CN 205920179U CN 201620507143 U CN201620507143 U CN 201620507143U CN 205920179 U CN205920179 U CN 205920179U
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Abstract
The utility model discloses a high voltage transmission lines construction grounding detection device, it sets up module and control module to take place module, induced voltage elimination module, show including measured module, high voltage DC, control module sets up module electric connection with measured module, high voltage DC emergence module and demonstration, and high voltage DC takes place module production high voltage DC and carries measured module, and measured module surveys high voltage transmission lines with the quilt and is connected, and measured module and quilt are surveyed and still be provided with measured module 1 elimination module between the high voltage transmission lines. This detection device's equipment wiring is simple, convenient to use. Using high voltage transmission lines construction grounding detection device to go forward in the power transmission and conducting the survey, whether the circuit ground wire that can accurate affirmation be about to the power transmission whole demolising, confirms that the circuit does not have the ground wire, the power transmission of can setting one's mind at rest.
Description
Technical field
This utility model is related to power construction security technology area, particularly to a kind of high-tension line construction earthing detection dress
Put.
Background technology
Same tower double (many) return line maintenance when, or transmission line of electricity newly-built, change line route, the applying of shaft tower transformation
During work, hanging earthing conductor can prevent to send a telegram here suddenly and cause unexpected injury, but also brings the maloperation of switching on earth wire simultaneously
Hidden danger.Before the power transmission of after completing in construction or new stringing road, base shaft tower one by one is needed to inspect for acceptance, workload is huge
Greatly, and once the carelessness that works, earth lead etc. is left on the line, and perform power transmission instruction, will result in line power transmission with ground
Pernicious misoperation fault.Due to the impact of various factors, substation bus bar, transmission line of electricity or electrical equipment band ground wire power transmission thing
Therefore often occur.The existing mode preventing line power transmission with ground generally by strengthening management, and to the new power transmission line setting up
Road carries out parameter detecting, and for maintenance construction or the circuit with induced voltage is difficult to parameter detecting.
But, in prior art, because ultra-high-tension power transmission line is more and more common with the use on double (many) loop lines road of tower, simultaneously
The electric pressure more and more higher of transmission line of electricity, the induced voltage of generation is also higher, such as the faradism on 500kv double-circuit line
Up to tens kilovolts of pressure, the presence of induced voltage makes earthing detection extremely difficult.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of high-tension line construction ground detection device, can be in height
Detected before the power transmission of line ball road, find earth lead hidden danger and remove in time, thus ensureing that power construction is carried out safely.
In order to solve above-mentioned technical problem, the technical solution of the utility model is as follows:
A kind of high-tension line construction ground detection device, occurs module, induced voltage to disappear including measurement module, high direct voltage
Except module, display setup module and control module；There is module and display setting in control module and measurement module, high direct voltage
Module is electrically connected with, and high direct voltage occurs module to produce high direct voltage to be simultaneously transported to measurement module, measurement module and tested high pressure
Connection, is additionally provided with induced voltage cancellation module between measurement module and tested high-tension line.During use, display setting mould
Block is used for showing testing result and parameter, operational order input, control module, according to operational order, controls high direct voltage to occur
Module produces high direct voltage and is transported to measurement module, is loaded on tested high-tension line, induced voltage after measured module
Cancellation module is used for preventing the induced voltage of tested high-tension line from detection means is damaged.
Further, high direct voltage occurs module to include modulation circuit, field effect transistor and line output transformer；Modulation circuit
Produce conducting and the cut-off of square-wave signal driving FET, produce alternating current and pass through line output transformer (high pressure of connecting again
Bag) produce high-tension current, high-tension current passes through kenotron halfwave rectifier, exports direct current high-frequency and high-voltage.
Further, high-tension line construction ground detection device also include power module, power module include transformator with
And current rectifying and wave filtering circuit, 220v alternating voltage output 12v DC voltage after transformator and current rectifying and wave filtering circuit process.Or
Person, power module is 12v DC source.
Further, control module is single-chip microcomputer, and the signal output part of analog-digital converter is connected with the middle broken ends of fractured bone of single-chip microcomputer.
Further, high-tension line construction ground detection device also includes communication module, and communication module includes being arranged on and connects
Wireless receiver in ground detection means and remote manipulator.Because detection means is directly connected with tested high-tension line, it is
Guarantee safety, detection means is operated by remotely control, the safety of operator can be ensured to greatest extent.
Further, measurement module includes current-limiting resistance, sampling resistor, analog-digital converter；High direct voltage occur module with
It is connected to tested high-tension line after current-limiting resistance series connection；Multiple sampling resistor series connection, wherein one end is connected with tested high-tension line,
The other end is grounded；The signal input part of analog-digital converter is in parallel with the sampling resistor of earth terminal.
Further, induced voltage cancellation module includes high-voltage diode and filter capacitor, and multiple high-voltage diodes are connected,
Wherein one end is connected with tested high-tension line, and the other end is grounded；Current-limiting resistance, the multiple filter capacitor high pressure with earth terminal respectively
Diodes in parallel.
Using technique scheme, there is the high direct voltage of module generation by high direct voltage in detection means of the present utility model
It is connected with the tested high-tension line eliminating induced voltage impact by measurement circuitry, the measurement data drawing is turned by sampling resistor
Turn to low and high level and access single-chip microcomputer.This device employs line output transformer (high voltage package) to solve the problems, such as testing high voltage, adopts
With high-voltage diode, the induced voltage of tested high-tension line is carried out isolating with the safety that ensure that detection means, selects remote control
Mode solves the safety problem of tester.
The equipment wiring of this detection means is simple, easy to use.Using high-tension line construction ground detection device in power transmission
Before detected, can accurately confirm whether all to remove the line grounding wire of power transmission, confirm circuit no ground wire, permissible
Trust power transmission.
Brief description
Fig. 1 is ground detection device structured flowchart of the present utility model；
Fig. 2 is that the ground detection device in Fig. 1 implements schematic diagram；
Fig. 3 is measurement module circuit theory diagrams；
Fig. 4 is the circuit theory diagrams of induced voltage cancellation module；
In figure, the tested high-tension line of 10-, 20- earth lead.
Specific embodiment
Below in conjunction with the accompanying drawings specific embodiment of the present utility model is described further.Here it should be noted that
Explanation for these embodiments is used to help understand this utility model, but does not constitute to restriction of the present utility model.This
Outward, as long as involved technical characteristic in each embodiment of this utility model disclosed below does not constitute conflict each other
Just can be mutually combined.
The ground detection device as shown in figure 1, a kind of high-tension line is constructed, include measurement module, high direct voltage generation module,
Induced voltage cancellation module, display setup module and control module；There is module with measurement module, high direct voltage in control module
It is electrically connected with display setup module, high direct voltage occurs module to produce high direct voltage and be transported to measurement module, measurement module
It is connected with tested high-tension line 10, between measurement module and tested high-tension line 10, be additionally provided with induced voltage cancellation module.Make
Used time, as shown in Fig. 2 display setup module is used for showing testing result and parameter, operational order input, control module according to
Operational order, controls high direct voltage to occur module to produce high direct voltage and be transported to measurement module, loads after measured module
To on tested high-tension line 10, induced voltage cancellation module is used for preventing the induced voltage of tested high-tension line 10 to detection means
Damage.
Wherein, high direct voltage occurs module to include modulation circuit, field effect transistor and line output transformer；Modulation circuit produces
The conducting of square-wave signal driving FET and cut-off, produce alternating current and pass through line output transformer (high voltage package) product of connecting again
Raw high-tension current, high-tension current passes through kenotron halfwave rectifier, exports direct current high-frequency and high-voltage.
Wherein, high-tension line construction ground detection device also includes power module, and power module includes transformator and whole
Stream filter circuit, 220v alternating voltage exports 12v DC voltage after processing through transformator and current rectifying and wave filtering circuit.Or, electricity
Source module is 12v DC source.
Wherein, control module is single-chip microcomputer, and the signal output part of analog-digital converter is connected with the middle broken ends of fractured bone of single-chip microcomputer.
Wherein, high-tension line construction ground detection device also includes communication module, and communication module includes being arranged on ground connection inspection
Survey the wireless receiver in device and remote manipulator.Because detection means is directly connected with tested high-tension line 10, in order to
Guarantee safety, detection means is operated by remotely control, the safety of operator can be ensured to greatest extent.
Wherein, measurement module includes current-limiting resistance, sampling resistor, analog-digital converter；There is module and current limliting in high direct voltage
It is connected to tested high-tension line 10 after resistant series；Multiple sampling resistor series connection, wherein one end is connected with tested high-tension line 10,
The other end is grounded；The signal input part of analog-digital converter is in parallel with the sampling resistor of earth terminal.
As shown in figure 3, high direct voltage occurs module to be connected to tested high-tension line 10 after connecting with current-limiting resistance r1；Two
Sampling resistor r2 and r3 connects, and sampling resistor r2 is connected with tested high-tension line 10, and sampling resistor r3 is grounded, analog-digital converter
Signal input part is in parallel with sampling resistor r3, and the signal output part of analog-digital converter is connected with the middle broken ends of fractured bone of single-chip microcomputer.When tested
When high-tension line 10 has the earth lead 20 do not removed, resistance very little in loop, load tested high-tension line 10 times after high direct voltage
Electric current in road is very big, by the electric current very little of sampling resistor r2 and r3；If the earth lead 20 of tested high-tension line 10 dismounting
When, in loop, resistance is very big, and the high direct voltage almost all of loading is carried on sampling resistor r2 and r3, by sampling resistor r2
Very big with the electric current of r3；The middle broken ends of fractured bone of single-chip microcomputer is connected to by analog-digital converter using resistance r2 and r3 junction point, works as ground connection
When line 20 is not removed, by the electric current very little of sampling resistor r2 and r3, now for low level；When earth lead 20 is removed completely,
Electric current by sampling resistor r2 and r3 is very big, now for high level.
Wherein, induced voltage cancellation module includes high-voltage diode and filter capacitor, and multiple high-voltage diodes are connected, wherein
One end is connected with tested high-tension line, and the other end is grounded；Current-limiting resistance, multiple filter capacitor high pressure two pole with earth terminal respectively
Pipe is in parallel.
As shown in figure 4, high-voltage diode d1, d2, d3 connect, d1 forward conduction end is connected with tested high-tension line 10, d3
Input end grounding, current-limiting resistance r1 is connected between d2 and d3, and high direct voltage is after r1, and d2, d1 forward conduction adds
It is downloaded on tested high-tension line 10；And the positive half cycle of the induced voltage of tested high-tension line, because reverse cut-off is it is impossible to pass through, is born
Half cycle forms loop with ground connection after high-voltage diode d1, d2, d3, it also avoid being loaded into ground detection device.On d3
Parallel filtering electric capacity c1, c2, c3, c4, wherein c1 and c2, c3 and c4 are in parallel after connecting respectively, improve the capacity of electric capacity.
Above in association with accompanying drawing, embodiment of the present utility model is explained in detail, but this utility model is not limited to institute
The embodiment of description.For a person skilled in the art, in the case of without departing from this utility model principle and spirit,
Multiple changes, modification, replacement and modification are carried out to these embodiments, still falls within protection domain of the present utility model.
Claims (8)
1. a kind of high-tension line construction ground detection device it is characterised in that: include measurement module, there is module in high direct voltage,
Induced voltage cancellation module, display setup module and control module；Described control module and described measurement module, described direct current
High pressure occurs module and described display setup module to be electrically connected with, and described high direct voltage occurs module to produce high direct voltage and convey
To described measurement module, described measurement module is connected with tested high-tension line, between described measurement module and tested high-tension line
It is additionally provided with described induced voltage cancellation module.
2. a kind of high-tension line construction ground detection device according to claim 1 it is characterised in that: described high direct voltage
Module is occurred to include modulation circuit, field effect transistor and line output transformer；It is described that described modulation circuit produces square-wave signal driving
The conducting of field effect transistor and cut-off, produce alternating current and pass through described line output transformer generation high-tension current of connecting again, described
High-tension current passes through a kenotron halfwave rectifier, exports direct current high-frequency and high-voltage.
3. a kind of high-tension line construction ground detection device according to claim 2 it is characterised in that: also include power supply mould
Block, described power module includes transformator and current rectifying and wave filtering circuit, and 220v alternating voltage is through described transformator and described whole
Stream filter circuit exports 12v DC voltage after processing.
4. a kind of high-tension line construction ground detection device according to claim 3 it is characterised in that: described power module
It is 12v DC source.
5. a kind of high-tension line construction ground detection device according to claim 2 it is characterised in that: also include the mould that communicates
Block, described communication module includes wireless receiver and the remote manipulator being arranged in ground detection device.
6. a kind of high-tension line construction ground detection device according to any one of claim 1-5 it is characterised in that: described
Measurement module includes current-limiting resistance, sampling resistor and analog-digital converter；There is module and described current-limiting resistance in described high direct voltage
It is connected to tested high-tension line after series connection；Multiple described sampling resistor series connection, wherein one end is connected with described tested high-tension line,
The other end is grounded；The signal input part of described analog-digital converter is in parallel with the described sampling resistor of earth terminal.
7. a kind of high-tension line construction ground detection device according to claim 6 it is characterised in that: described control module
It is single-chip microcomputer, the signal output part of described analog-digital converter is connected with the middle broken ends of fractured bone of described single-chip microcomputer.
8. a kind of high-tension line construction ground detection device according to claim 7 it is characterised in that: described induced voltage
Cancellation module includes high-voltage diode and filter capacitor, multiple described high-voltage diode series connection, wherein one end and tested high-voltage line
Road connects, and the other end is grounded；Described current-limiting resistance, multiple described filter capacitor are respectively with the described high-voltage diode of earth terminal simultaneously
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620507143.6U CN205920179U (en) | 2016-05-30 | 2016-05-30 | High voltage transmission lines construction grounding detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620507143.6U CN205920179U (en) | 2016-05-30 | 2016-05-30 | High voltage transmission lines construction grounding detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205920179U true CN205920179U (en) | 2017-02-01 |
Family
ID=57876474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620507143.6U Expired - Fee Related CN205920179U (en) | 2016-05-30 | 2016-05-30 | High voltage transmission lines construction grounding detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205920179U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110297161A (en) * | 2019-06-21 | 2019-10-01 | 国网河北省电力有限公司 | Take precautions against the method and scheduling system of with ground power transmission of grid equipment |
| CN112834962A (en) * | 2021-02-02 | 2021-05-25 | 国网山东省电力公司龙口市供电公司 | Comprehensive detection device for power transmission and distribution line |
| CN114184863A (en) * | 2021-12-01 | 2022-03-15 | 国网北京市电力公司 | Distribution line grounding inspection device and method by insulation resistance method |
-
2016
- 2016-05-30 CN CN201620507143.6U patent/CN205920179U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110297161A (en) * | 2019-06-21 | 2019-10-01 | 国网河北省电力有限公司 | Take precautions against the method and scheduling system of with ground power transmission of grid equipment |
| CN110297161B (en) * | 2019-06-21 | 2021-10-15 | 国网河北省电力有限公司 | Method for preventing power grid equipment from transmitting power with connection point and scheduling system |
| CN112834962A (en) * | 2021-02-02 | 2021-05-25 | 国网山东省电力公司龙口市供电公司 | Comprehensive detection device for power transmission and distribution line |
| CN114184863A (en) * | 2021-12-01 | 2022-03-15 | 国网北京市电力公司 | Distribution line grounding inspection device and method by insulation resistance method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20210530 |