CN206321712U - Impulse earthed resistance measuring system - Google Patents
Impulse earthed resistance measuring system Download PDFInfo
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- CN206321712U CN206321712U CN201720020023.8U CN201720020023U CN206321712U CN 206321712 U CN206321712 U CN 206321712U CN 201720020023 U CN201720020023 U CN 201720020023U CN 206321712 U CN206321712 U CN 206321712U
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Abstract
The utility model discloses a kind of impulse earthed resistance measuring system, it is characterised in that：Occur module, earthing module and earth resistance data collection and analysis device module including dash current, wherein dash current generation module is connected with earthing module, earthing module is the connection of earth resistance data collection and analysis device module；The earth resistance data collection and analysis device module includes signal acquisition module, photoelectric isolation module, central processing unit, data display equipment, data storage and the communication module being connected with earthing module, wherein photoelectric isolation module connects signal acquisition module, central processing unit connects photoelectric isolation module, and data display equipment, data storage and communication module are connected with central processing unit respectively again；The utility model can realize the electromagnetic process of emulation power distribution network thunderbolt, measure the overvoltage produced during thunderbolt and electric current, these Data Management Analysis are stored and the characteristics of central control room draws impulse earthed resistance is delivered to.
Description
Technical field
The utility model is related to a kind of measuring system, is especially a kind of impulse earthed resistance measuring system.
Background technology
The grounding resistance measurement to distribution is resisted using megger measurement stable state power frequency earthing resistance at present；But real influence
The factor of thunderbolt counterattack probability is impulse earthed resistance, and unstable state earth resistance.It is big that grounding body is acted in lightning protection
It is small to depend primarily on Transient grounding resistance and transient process feature, rather than power frequency earthing resistance.Electric current be hit in the earth
Diffusing behavioural characteristic influence, there is larger difference between impulse earthed resistance and stable state earth resistance, so in work
It is qualified that journey has occurred as soon as shaft tower stable state grounding resistance in practice, and effectively makees by that can not play its when being struck by lightning in circuit
With causing circuit the phenomenon tripped occur.
Utility model content
The utility model can realize the electromagnetic process of emulation power distribution network thunderbolt, measure the overvoltage produced during thunderbolt and electricity
Stream, these Data Management Analysis are stored and the characteristics of central control room draws impulse earthed resistance is delivered to；The utility model
It is reasonable in design, it is simple in construction, the utility model by reasonably design dash current occur module can produce an amplitude wave head compared with
The relatively low current wave mock standard lightning current wave of slow, amplitude；By reasonably designing earth resistance data collection and analysis device module,
Gathered data, processing data and display data or data transfer to central control room on request can be realized；By rational
Design accuracy is high, the fast signal acquisition module of acquisition rate, and it is impulse wave to meet lightning wave, and steepness is very big, to impulse resistance
The requirement of measurement；By reasonably designing photoelectric isolation module, it is to avoid because signal acquisition module is connected with strong power part, adopt
The data collected cannot be directly delivered to central processing unit, or damage the phenomenon of central processing unit.
The utility model is achieved in that a kind of impulse earthed resistance measuring system of construction, it is characterised in that：Including punching
Hit electric current and occur module, earthing module and earth resistance data collection and analysis device module, module occurs for wherein dash current with connecing
Ground module connection, earthing module is the connection of earth resistance data collection and analysis device module；
The earth resistance data collection and analysis device module include be connected with earthing module signal acquisition module, photoelectricity every
From module, central processing unit, data display equipment, data storage and communication module, wherein photoelectric isolation module connection signal is adopted
Collect module, central processing unit connection photoelectric isolation module, data display equipment, data storage and communication module again respectively with center
Processor is connected.
According to impulse earthed resistance measuring system described in the utility model, the dash current occurs module and is provided with pressure regulation
Device, the high-tension transformer being connected with pressure regulator, the high voltage silicon rectifier stack being connected with high-tension transformer, the charging electricity connected with high voltage silicon rectifier stack
Resistance, the electric capacity in parallel with high voltage silicon rectifier stack and charging resistor, and sphere gap.
The utility model has the following advantages that：
Advantage one：The utility model is reasonable in design, simple in construction, can effectively measure impulse earthed resistance；By rational
Module, which occurs, for design dash current can produce the amplitude wave head current wave mock standard lightning current wave relatively low compared with slow, amplitude；Allow
What is measured is better.
Advantage two：By reasonably designing earth resistance data collection and analysis device module, gathered data, processing number can be realized
According to and display data or data transfer to central control room on request.
Advantage three：High, the fast signal acquisition module of acquisition rate by rational design accuracy, it is arteries and veins to meet lightning wave
Ripple is rushed, steepness is very big, the requirement to impacting resistance measurement.
Advantage four：By reasonably designing photoelectric isolation module, it is to avoid because signal acquisition module and strong power part connect
Connect, the data collected cannot be directly delivered to central processing unit, or damage the phenomenon of central processing unit.
Advantage five：The utility model is implemented simply, conveniently, while low cost when implementing, can effectively measure impulse grounding
Resistance, valid data are provided for follow-up experiment.
Brief description of the drawings
Fig. 1 is the utility model system block diagram
Fig. 2 is the circuit diagram in the utility model dash current generation module
In figure：1st, module occurs for dash current；2nd, earthing module；3rd, signal acquisition module；4th, photoelectric isolation module；5th, in
Central processor；6th, data display equipment；7th, data storage；8th, communication module；T1, pressure regulator；T2, high-tension transformer；D, high pressure
Silicon stack；R, charging resistor；C, electric capacity；G, sphere gap.
Embodiment
The utility model is described in detail below in conjunction with accompanying drawing 1- Fig. 2, to the skill in the utility model embodiment
Art scheme is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the utility model, and
The embodiment being not all of.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creativeness
The every other embodiment obtained under the premise of work, belongs to the scope of the utility model protection.
As Figure 1-Figure 2, the utility model provides a kind of impulse earthed resistance measuring system, including dash current herein
Module 1 and ground connection mould occur for generation module 1, earthing module 2 and earth resistance data collection and analysis device module, wherein dash current
Block 2 is connected, and earthing module 2 is the connection of earth resistance data collection and analysis device module；
The earth resistance data collection and analysis device module includes signal acquisition module 3, the photoelectricity being connected with earthing module 2
Isolation module 4, central processing unit 5, data display equipment 6, data storage 7 and communication module 8, wherein photoelectric isolation module 4 connect
Connect signal acquisition module 3, the connection photoelectric isolation module 4 of central processing unit 5, data display equipment 6, data storage 7 and communication mould
Block 8 is connected with central processing unit 5 respectively again.
According to impulse earthed resistance measuring system described in the utility model, the dash current occurs module 1 and is provided with tune
Depressor T1, the high-tension transformer T2 being connected with pressure regulator T1, the high voltage silicon rectifier stack D being connected with high-tension transformer T2, with high voltage silicon rectifier stack D
The charging resistor R of series connection, the electric capacity C in parallel with high voltage silicon rectifier stack D and charging resistor R, and sphere gap G.
The utility model specific implementation is as follows：
Occur module 1 by dash current first and produce dash current, as driving source, the dash current of generation is acted on
After earthing module 2, impulse resistance value can be obtained, is transmitted after being now acquired again by signal acquisition module 3 to signal, is led to
Cross photoelectric isolation module 4 signal is filtered and handled, then by the signal transmission after processing to central processing unit 5, centre
Reason device 5 is analyzed and handled to signal, then the signal after processing is shown by data display equipment 6, passes through data storage mould
Block 7 is stored, and is delivered to central control room using communication module 8, is finally completed impulse earthed resistance test.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can in other embodiments be realized in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (2)
1. a kind of impulse earthed resistance measuring system, it is characterised in that：Occurs module including dash current（1）, earthing module（2）
With earth resistance data collection and analysis device module, module occurs for wherein dash current（1）With earthing module（2）Connection, is grounded mould
Block（2）It is the connection of earth resistance data collection and analysis device module；
The earth resistance data collection and analysis device module includes and earthing module（2）The signal acquisition module of connection（3）, photoelectricity
Isolation module（4）, central processing unit（5）, data display equipment（6）, data storage（7）And communication module（8）, wherein photoelectricity every
From module（4）Connect signal acquisition module（3）, central processing unit（5）Connect photoelectric isolation module（4）, data display equipment（6）、
Data storage（7）And communication module（8）Again respectively with central processing unit（5）Connection.
2. impulse earthed resistance measuring system according to claim 1, it is characterised in that：Module occurs for the dash current
（1）It is provided with pressure regulator（T1）, with pressure regulator（T1）The high-tension transformer of connection（T2）, with high-tension transformer（T2）The height of connection
Press silicon stack（D）, with high voltage silicon rectifier stack（D）The charging resistor of series connection（R）, with high voltage silicon rectifier stack（D）And charging resistor（R）Electric capacity in parallel
（C）, and sphere gap（G）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720020023.8U CN206321712U (en) | 2017-01-09 | 2017-01-09 | Impulse earthed resistance measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720020023.8U CN206321712U (en) | 2017-01-09 | 2017-01-09 | Impulse earthed resistance measuring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206321712U true CN206321712U (en) | 2017-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720020023.8U Active CN206321712U (en) | 2017-01-09 | 2017-01-09 | Impulse earthed resistance measuring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110007180A (en) * | 2018-01-05 | 2019-07-12 | 深圳康普盾科技股份有限公司 | A kind of ground line connection reliability test method and device |
| WO2019196164A1 (en) * | 2018-04-13 | 2019-10-17 | 深圳远征技术有限公司 | Surge protection circuit and apparatus for ground resistance tester |
-
2017
- 2017-01-09 CN CN201720020023.8U patent/CN206321712U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110007180A (en) * | 2018-01-05 | 2019-07-12 | 深圳康普盾科技股份有限公司 | A kind of ground line connection reliability test method and device |
| WO2019196164A1 (en) * | 2018-04-13 | 2019-10-17 | 深圳远征技术有限公司 | Surge protection circuit and apparatus for ground resistance tester |
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