CN205679678U - A kind of ground step voltage detection device - Google Patents
A kind of ground step voltage detection device Download PDFInfo
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- CN205679678U CN205679678U CN201620529924.5U CN201620529924U CN205679678U CN 205679678 U CN205679678 U CN 205679678U CN 201620529924 U CN201620529924 U CN 201620529924U CN 205679678 U CN205679678 U CN 205679678U
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- arm
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- step voltage
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Abstract
A kind of ground step voltage detection device, including crawling device, described crawling device includes that the first arm and second of creeping is creeped arm, it is provided with crawling device controller in crawling device, crawling device controller control servomotor drives the first arm and second of creeping to creep arm, described first arm and second position that arm and ground touch of creeping of creeping is respectively equipped with the first metal contact and the second metal contact, it is provided with potential difference testing circuit in described crawling device, voltage comparator circuit, master controller, warning device, first metal contact and the second metal contact are connected with potential difference testing circuit, potential difference testing circuit is connected with voltage comparator circuit, voltage comparator circuit is connected with the input of master controller, the output of master controller is connected with warning device.The utility model provides a kind of ground step voltage detection device, and simple in construction, energy-conserving and environment-protective, the easy for installation and step voltage detection that adapts to various ground, security is high.
Description
Technical field
The utility model relates to voltage detecting technical field, particularly a kind of ground step voltage detection device.
Background technology
When a live wire of transmission line of electricity, when falling on the ground due to a certain reason broken string.Pick-up point and live wire
Electromotive force identical, electric current around will scatter from the pick-up point of wire to the earth.Now, with wire pick-up point position on ground
It is set to center, a Potential Distributing region can be formed.Result can cause: from pick-up point more away from, electric current can more disperse, ground potential
Also lower.When people are when walking close to pick-up point, the potential difference between bipod is step voltage.Step voltage is often electrically setting
Near standby earth point or produce near electric power line pole tower.When in the range of people is positioned at 8 ~ 10 meters, pick-up point of distance, just have
It may happen that electric shock accidents.When people is by step voltage, electric current through remarkable both legs, crotch, upper body thus loop can be formed.
When step voltage reaches 40 ~ 50V, will make people that Danger Electric shock risk occurs, especially when people is subject to higher step voltage effect,
Both feet can knot, and makes health fall on the ground.This not only makes the electric current acting on health increase, and passes the current through human body
Path changing, the entirely possible vitals flowing through human body, make people get an electric shock and die.But, for how to solve above-mentioned across
The problem of step voltage, mostly uses now and reminds people at big current earthing region setting warning sign or horizontal extension caution slogan
Must not be close to the easy area producing step voltage.But, which region is this method owing to can not be accurately determined very much
Step voltage is relatively big, and then can not carry out people accurately, warn timely, not clear to the generation effect avoiding electric shock accidents
Aobvious.Being outdoor environment in view of a lot of transmission line of electricity break points, general ground is all uneven.This suddenly bravely can propose to power
" transmission line of electricity step voltage detect device " in dolly measurement bring very big problem, its device also needs to optimize further and changes
Enter.
Content of the invention
Technical problem to be solved in the utility model is to provide a kind of ground step voltage detection device, can essence
Really detect the region that step voltage is bigger, and people can be warned in time must not to enter the step voltage inspection in this region
Survey device.
For solving above-mentioned technical problem, the utility model be the technical scheme is that the step voltage detection of a kind of ground
Device, including crawling device, described crawling device includes that the first arm and second of creeping is creeped arm, is provided with dress of creeping in crawling device
Putting controller, crawling device controller control servomotor drives the first arm and second of creeping to creep arm, and described first creeps arm
It is respectively equipped with the first metal contact and the second metal contact with the second position that arm and ground touch of creeping, described creep
It is provided with potential difference testing circuit, voltage comparator circuit, master controller, warning device, the first metal contact and second in device
Metal contact is connected with potential difference testing circuit, and potential difference testing circuit is connected with voltage comparator circuit, voltage comparator circuit
Being connected with the input of master controller, the output of master controller is connected with warning device.
Preferably, described crawling device controller is also connected with master controller.
Preferably, described master controller is also by wireless communication module and remote controller wireless connection.
Preferably, described first arm is creeped and the second distance creeping between arm is 70cm.
Preferably, voltage comparator circuit includes comparator U1, after the negative input terminal series resistor R1 of comparator U1 with
Reference voltage V 1 is connected；Detection voltage with the output of potential difference testing circuit after the positive input terminal series resistor R2 of comparator U1
V2 is connected；The power port of described comparator U1 is connected with supply voltage VCC after being connected on one end of resistance R3, and the R3 other end is then
Being connected with the signal input part IN of described master controller, the ground connection side of comparator U1 is directly grounded.
Preferably, described reference voltage V 1 is set as 40V.
Preferably, described warning device is acoustic-optic alarm.
The utility model provides a kind of ground step voltage detection device, simple in construction, energy-conserving and environment-protective, easy for installation and suitable
Answering the step voltage detection on various ground, security is high.
Brief description
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the utility model control part；
Fig. 3 is the utility model voltage comparator circuit schematic diagram；
In figure: crawling device 1, first creeps arm 2, and second creeps arm 3, the first metal contact 4, the second metal contact
5。
Detailed description of the invention
Such as Fig. 1, in 2, a kind of ground step voltage detection device, including crawling device 1, described crawling device 1 includes the
One arm 2 and second of creeping is creeped arm 3, is provided with crawling device controller, crawling device controller control servo electricity in crawling device 1
Machine drives the first arm 2 and second of creeping to creep arm 3, it is characterised in that: the described first arm 2 and second of creeping is creeped arm 3 and ground
The position contacting is respectively equipped with the first metal contact 4 and the second metal contact 5, is provided with current potential in described crawling device 1
Difference detecting circuit, voltage comparator circuit, master controller, warning device, the first metal contact 4 and the second metal contact 5 with
Potential difference testing circuit connects, and potential difference testing circuit is connected with voltage comparator circuit, voltage comparator circuit and master controller
Input connects, and the output of master controller is connected with warning device.Potential difference testing circuit 6 can use has measurement alternating current
The universal meter circuit realiration of pressure function, the first metal contact 4 and the second metal contact 5 are equivalent to two test pencils.
Preferably, described crawling device controller is also connected with master controller.
Preferably, described master controller is also by wireless communication module and remote controller wireless connection.
Preferably, described first arm 2 is creeped and the second distance creeped between arm 3 is 70cm.
Preferably, as it is shown on figure 3, voltage comparator circuit includes comparator U1, the negative input terminal concatenation electricity of comparator U1
It is connected with reference voltage V 1 after resistance R1；With the output of potential difference testing circuit after the positive input terminal series resistor R2 of comparator U1
Detection voltage V2 be connected；The power port of described comparator U1 is connected with supply voltage VCC after being connected on one end of resistance R3,
The R3 other end is then connected with the signal input part IN of described master controller, and the ground connection side of comparator U1 is directly grounded.
Preferably, described reference voltage V 1 is set as 40V.
Preferably, described warning device is acoustic-optic alarm.
Owing to human body generation Danger Electric shock risk can be made when step voltage reaches 40～50V, so can be by described reference voltage V 1
It is set to 40V, and the detection voltage V2 of potential difference testing circuit output is the step voltage detecting, when detection voltage V2 is more than
During reference voltage V 1, comparator U1 exports an alarm signal, main controller controls alarm action to master controller.
The above embodiments are only optimal technical scheme of the present utility model, and are not construed as limit of the present utility model
System, the technical scheme that protection domain of the present utility model should be recorded with claim, including the technical scheme that claim is recorded
The equivalents of middle technical characteristic is protection domain.Equivalent i.e. within this range is improved, also at the utility model
Protection domain within.
Claims (7)
1. a ground step voltage detection device, including crawling device (1), described crawling device (1) includes that first creeps arm
(2) and the second creeps arm (3), is provided with crawling device controller in crawling device (1), and crawling device controller controls servomotor
The first arm (2) and second of creeping is driven to creep arm (3), it is characterised in that: the described first arm (2) and second of creeping is creeped arm (3)
The position touched with ground is respectively equipped with the first metal contact (4) and the second metal contact (5), described crawling device
(1) it is provided with potential difference testing circuit, voltage comparator circuit, master controller, warning device, the first metal contact (4) and in
Two metal contacts (5) are connected with potential difference testing circuit, and potential difference testing circuit is connected with voltage comparator circuit, and voltage ratio is relatively
Circuit is connected with the input of master controller, and the output of master controller is connected with warning device.
2. a kind of ground step voltage detects device according to claim 1, it is characterised in that: described crawling device controller
It also is connected with master controller.
3. a kind of ground according to claim 1 or claim 2 step voltage detection device, it is characterised in that: described master controller is also
By wireless communication module and remote controller wireless connection.
4. a kind of ground step voltage detection device according to claim 1, it is characterised in that: described first creeps arm (2)
And second the distance creeped between arm (3) be 70cm.
5. a kind of ground step voltage detects device according to claim 1, it is characterised in that: voltage comparator circuit includes ratio
It compared with device U1, is connected with reference voltage V 1 after the negative input terminal series resistor R1 of comparator U1；The positive input terminal of comparator U1
It is connected with the detection voltage V2 of potential difference testing circuit output after substring connecting resistance R2；The power port of described comparator U1 is connected on
Being connected with supply voltage VCC behind one end of resistance R3, the R3 other end is then connected with the signal input part IN of described master controller,
The ground connection side of comparator U1 is directly grounded.
6. a kind of ground step voltage detects device according to claim 5, it is characterised in that: described reference voltage V 1 sets
For 40V.
7. a kind of ground step voltage detects device according to claim 1, it is characterised in that: described warning device is acousto-optic
Warning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620529924.5U CN205679678U (en) | 2016-06-03 | 2016-06-03 | A kind of ground step voltage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620529924.5U CN205679678U (en) | 2016-06-03 | 2016-06-03 | A kind of ground step voltage detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205679678U true CN205679678U (en) | 2016-11-09 |
Family
ID=57434065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620529924.5U Expired - Fee Related CN205679678U (en) | 2016-06-03 | 2016-06-03 | A kind of ground step voltage detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205679678U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188059A (en) * | 2018-10-09 | 2019-01-11 | 国网河南省电力公司新密市供电公司 | A kind of step voltage detection method and device |
| CN109856446A (en) * | 2019-03-28 | 2019-06-07 | 国网河南省电力公司电力科学研究院 | A kind of octopus step voltage detection device |
| CN111044774A (en) * | 2019-12-16 | 2020-04-21 | 深圳供电局有限公司 | Potential difference monitoring circuit and method for power distribution facility |
-
2016
- 2016-06-03 CN CN201620529924.5U patent/CN205679678U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188059A (en) * | 2018-10-09 | 2019-01-11 | 国网河南省电力公司新密市供电公司 | A kind of step voltage detection method and device |
| CN109188059B (en) * | 2018-10-09 | 2023-09-05 | 国网河南省电力公司新密市供电公司 | Step voltage detection method and device |
| CN109856446A (en) * | 2019-03-28 | 2019-06-07 | 国网河南省电力公司电力科学研究院 | A kind of octopus step voltage detection device |
| CN111044774A (en) * | 2019-12-16 | 2020-04-21 | 深圳供电局有限公司 | Potential difference monitoring circuit and method for power distribution facility |
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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 |
Granted publication date: 20161109 Termination date: 20170603 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |