CN207976543U - A kind of earthing or grounding means shock response test means for anti-jamming - Google Patents
A kind of earthing or grounding means shock response test means for anti-jamming Download PDFInfo
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- CN207976543U CN207976543U CN201820429021.9U CN201820429021U CN207976543U CN 207976543 U CN207976543 U CN 207976543U CN 201820429021 U CN201820429021 U CN 201820429021U CN 207976543 U CN207976543 U CN 207976543U
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Abstract
The utility model is related to a kind of earthing or grounding means shock response test means for anti-jammings, the device includes the first module of dash current source (1) of Parameter adjustable, the second module of earthing or grounding means (2), synchronous acquisition and storage third module (3) and computer (4), the first module of dash current source (1) of the Parameter adjustable is connect with the second module of earthing or grounding means (2), the synchronous acquisition and storage third module (3) respectively with the first module of dash current source (1) of Parameter adjustable, the second module of earthing or grounding means (2) connects, the computer (4) is connect with synchronous acquisition and storage third module (3).Compared with prior art, the utility model has the advantages that simple, accurate and is not limited by live service condition.
Description
Technical field
The utility model is related to earthing or grounding means on-the-spot test fields, are tested more particularly, to a kind of earthing or grounding means shock response
Use means for anti-jamming.
Background technology
Earthing or grounding means is the important measures for ensureing power system security reliability service, and general method is laying grounded screen,
The only not various electrical equipments of grounded screen with providing a common reference, and can drain rapidly failure in electric power system fault
Electric current, and reduce the raising of ground potential.Thus the quality of earthing or grounding means ground connection performance is directly related to work of electric power system personnel
Personal safety and various electrical equipments safety and normal operation.
The main band steel of material used in grounded screen is laid, the electricity of failure welding, soil corrosion, earth short circuit current when construction
The reasons such as power effect, cause the burn into of band steel and grounding flat steel to be broken, and ground connection performance is made to decline.Therefore, develop earthing or grounding means
Fault diagnosis technology, especially by field testing procedure and technology carry out using assessment, in time understand earthing or grounding means shape
State can greatly reduce to avoid the generation of accident and stop using as a servant the time and excavate the workload of repair.
Currently, State Grid's industry has promulgated and has included《DL_T_475-2006 earthing or grounding means characterisitic parameters measure directive/guide》、
《DL_T_887-2004 shaft tower power frequency earthing resistances measure》、《DLT 266-2012 earthing or grounding means impact characteristics parameter testings are led
Then》With《DLT 253-2012 direct current grounding poles ground resistance, ground potential distribution, step voltage and shunting measurement method》Deng mark
Standard, content includes the tests such as power frequency impedance test, impact impedance test, earth-continuity, Potential distribution and voltage, and is related to scene
Test anti-disturbance method describes less.
Utility model content
The purpose of this utility model is exactly to provide a kind of earthing or grounding means to overcome the problems of the above-mentioned prior art
Shock response test means for anti-jamming.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of earthing or grounding means shock response test means for anti-jamming, the device include the dash current source of Parameter adjustable
One module, the second module of earthing or grounding means, synchronous acquisition and storage third module and computer, the impact electricity of the Parameter adjustable
The first module of stream source is connect with the second module of earthing or grounding means, the synchronous acquisition and storage third module respectively with Parameter adjustable
The first module of dash current source, the connection of the second module of earthing or grounding means, the computer and synchronous acquisition and store third mould
Block connects.
Preferably, the synchronous acquisition and storage third module are binary channels or multichannel synchronousing collection and storage mould
Block.
Preferably, the first module of dash current source of the Parameter adjustable is dash current signal generator.
Preferably, the first module of dash current source of the Parameter adjustable by Rogowski coil respectively with earthing or grounding means
Two modules, synchronous acquisition are connected with storage third module.
Preferably, there are two the Rogowski coil is set, the synchronous acquisition and storage third module include processor
And two-way dash current collection terminal, two-way response voltage acquisition end and the output end being connect respectively with processor, described two
Road dash current collection terminal is connect with two Rogowski coils respectively, and the two-way responds voltage acquisition end and earthing or grounding means second
Module connects.
Preferably, the output end is USB interface, which is connect by USB data line with computer.
Preferably, the first module of dash current source of the Parameter adjustable is connect by conducting wire with electric current pole.
Preferably, the synchronous acquisition and storage third module are connect by conducting wire with voltage pole.
Preferably, the computer includes current-voltage waveform display circuit and time-frequency domain impedance analysis circuit.
Compared with prior art, the utility model has the following advantages：
1, the utility model provides a kind of independent component analysis that can be used in handling earthing or grounding means shock-testing
Algorithm model, binary channels or multichannel synchronousing collection data that can be based on same signal source realize noise except signal source
Deng the rejecting of interference data.
2, the utility model provide one kind can simultaneously to earthing or grounding means inject dash current and transient response voltage into
The method of row anti-interference process, on this basis it is possible to accurate time-frequency impedance curve distribution be obtained, for earthing or grounding means
The accurate evaluation of state.
3, the utility model meets intelligent testing technology growth requirement in the existing intelligence fortune inspection System Construction carried out energetically,
Have many advantages, such as simple, accurate and is not limited by live service condition.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 a are the live double channels acquisition impulse current waveform figure of the embodiments of the present invention；
Fig. 2 b are the live double channels acquisition transient response voltage oscillogram of the embodiments of the present invention；
Fig. 3 is the embodiments of the present invention treated dash current and transient response voltage oscillogram；
Fig. 4 a are the time domain model scatter chart after time-frequency impedance analysis of the embodiments of the present invention；
Fig. 4 b are the frequency domain distribution of impedance curve graph after time-frequency impedance analysis of the embodiments of the present invention.
Specific implementation mode
Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is a part of the embodiment of the utility model, rather than whole embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work should all belong to this
The range of utility model protection.
As shown in Figure 1, a kind of earthing or grounding means shock response test means for anti-jamming, which is characterized in that the device includes
The first module of dash current source 1, the second module of earthing or grounding means 2, synchronous acquisition and the storage third module 3 of Parameter adjustable and calculating
The first module of dash current source 1 of machine 4, the Parameter adjustable is connect with the second module of earthing or grounding means 2, the synchronous acquisition
It is connect respectively with the first module of dash current source 1 of Parameter adjustable, the second module of earthing or grounding means 2 with storage third module 3, it is described
Computer 4 and synchronous acquisition and storage third module 3 connect.
The synchronous acquisition and storage third module 3 is binary channels or multichannel synchronousing collection and memory module.It is described
Parameter adjustable the first module of dash current source 1 be dash current signal generator.
The first module of dash current source 1 of the Parameter adjustable by Rogowski coil 5 respectively with the second mould of earthing or grounding means
Block 2, synchronous acquisition and storage third module 3 connect.There are two the Rogowski coil 5 is set, the synchronous acquisition and storage
Third module 3 includes processor and the two-way dash current collection terminal being connect respectively with processor, two-way response voltage acquisition
End and output end, the two-way dash current collection terminal are connect with two Rogowski coils respectively, and the two-way responds voltage
Collection terminal is connect with the second module of earthing or grounding means 2, and wherein processor is CPU.
The output end is USB interface, which is connect by USB data line 6 with computer 4.
The first module of dash current source 1 of the Parameter adjustable is connect by conducting wire with electric current pole 7.Described synchronizing is adopted
Collection and storage third module 3 are connect by conducting wire with voltage pole 8.The computer 4 includes current-voltage waveform display circuit
With time-frequency domain impedance analysis circuit.
The utility model tries hard to, from practical application, the shortcoming of customer service prior art, impact for earthing or grounding means
Characterisitic parameter is tested, and proposes a kind of earthing or grounding means shock response test means for anti-jamming, can not had a power failure and not filled to ground connection
In the case of setting excavation, according to live industry standard standard arrangement electric test circuit, connect based on the injection of binary channels synchronous acquisition
The response of the dash current signal I and earthing or grounding means of ground device export transient voltage signal U, to I and U processing, eliminate existing
The jamming pattern signal of field recycles the processing of time-frequency impedance analysis circuit to obtain and can be used for evaluating the accurate time-frequency of earthing or grounding means
Domain distribution of impedance curve, wherein time-frequency impedance analysis circuit use existing circuit.The technology meets the existing intelligence carried out energetically
Intelligent testing technology growth requirement in inspection System Construction can be transported, have simple, accurate and is not limited by live service condition
Advantage.
Lightning impulse test is carried out to a certain 1000kV transmission towers earthing or grounding means.Conduct at a selected wherein tower leg ground connection
Lightning impulse current input terminal measures directive/guide electric discharge pressure p-wire 100m, testing current line according to shaft tower power frequency earthing resistance
80m, and arrange electric current pole and voltage pole.
Connection 8/20 μ s dash current signal generators of live thunder and lightning export an impulse current waveform as input signal, base
Lightning impulse current the signal waveform I1 and I2 of binary channels synchronous acquisition injection are carried out in high frequency Rogowski coil, while binary channels is same
Step acquires transient response the output voltage signal U1 and U2 at the ground connection, and two paths of signals data access multi-channel high-speed data and adopt
Acquisition means (sample rate is set as 5MS/s).Field test data is as shown in figures 2 a and 2b.
Multi-path high-speed data acquiring device is communicated with portable computer using usb data, and parameter setting sum number is carried out
According to transmission.Electric current and voltage data are respectively processed using portable computer, obtain the injection after wiping out background noise
Impulse current waveform Io and transient response voltage waveform Uo, as shown in Figure 3；It is given based on time-frequency impedance analysis circuit processing Io and Uo
Go out can be used for evaluate the accurate time-frequency domain distribution of impedance curve of earthing or grounding means, as shown in Figs. 4a and 4b.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in various
Equivalent modifications or substitutions, these modifications or substitutions should be covered within the scope of the utility model.Therefore, this practicality
Novel protection domain should be subject to the protection scope in claims.
Claims (9)
1. a kind of earthing or grounding means shock response test means for anti-jamming, which is characterized in that the device includes rushing for Parameter adjustable
The first module of current source (1), the second module of earthing or grounding means (2), synchronous acquisition and storage third module (3) and computer (4) are hit,
The first module of dash current source (1) of the Parameter adjustable is connect with the second module of earthing or grounding means (2), the synchronous acquisition
Connect respectively with the first module of dash current source (1) of Parameter adjustable, the second module of earthing or grounding means (2) with storage third module (3)
It connects, the computer (4) is connect with synchronous acquisition and storage third module (3).
2. the apparatus according to claim 1, it is characterised in that：The synchronous acquisition and storage third module (3) is double
Channel or multichannel synchronousing collection and memory module.
3. the apparatus according to claim 1, it is characterised in that：The first module of dash current source of the Parameter adjustable
(1) it is dash current signal generator.
4. the apparatus according to claim 1, it is characterised in that：The first module of dash current source of the Parameter adjustable
(1) it is connect respectively with the second module of earthing or grounding means (2), synchronous acquisition and storage third module (3) by Rogowski coil.
5. device according to claim 4, it is characterised in that：There are two the Rogowski coil is set, described synchronizing is adopted
Collection and storage third module (3) include that processor and the two-way dash current collection terminal being connect respectively with processor, two-way are rung
Voltage acquisition end and output end, the two-way dash current collection terminal is answered to be connect respectively with two Rogowski coils, described two
Road response voltage acquisition end is connect with the second module of earthing or grounding means (2).
6. device according to claim 5, it is characterised in that：The output end is USB interface, which passes through
USB data line is connect with computer (4).
7. the apparatus according to claim 1, it is characterised in that：The first module of dash current source of the Parameter adjustable
(1) it is connect with electric current pole by conducting wire.
8. the apparatus according to claim 1, it is characterised in that：The synchronous acquisition and storage third module (3) passes through
Conducting wire is connect with voltage pole.
9. the apparatus according to claim 1, it is characterised in that：The computer (4) includes that current-voltage waveform is shown
Circuit and time-frequency domain impedance analysis circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820429021.9U CN207976543U (en) | 2018-03-28 | 2018-03-28 | A kind of earthing or grounding means shock response test means for anti-jamming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820429021.9U CN207976543U (en) | 2018-03-28 | 2018-03-28 | A kind of earthing or grounding means shock response test means for anti-jamming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207976543U true CN207976543U (en) | 2018-10-16 |
Family
ID=63763856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820429021.9U Active CN207976543U (en) | 2018-03-28 | 2018-03-28 | A kind of earthing or grounding means shock response test means for anti-jamming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207976543U (en) |
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2018
- 2018-03-28 CN CN201820429021.9U patent/CN207976543U/en active Active
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