CN108459207A - Earth connection measurement plant and ground wire detecting system - Google Patents
Earth connection measurement plant and ground wire detecting system Download PDFInfo
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- CN108459207A CN108459207A CN201810743221.6A CN201810743221A CN108459207A CN 108459207 A CN108459207 A CN 108459207A CN 201810743221 A CN201810743221 A CN 201810743221A CN 108459207 A CN108459207 A CN 108459207A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/20—Measuring earth resistance; Measuring contact resistance, e.g. of earth connections, e.g. plates
- G01R27/205—Measuring contact resistance of connections, e.g. of earth connections
Abstract
The present invention provides a kind of earth connection measurement plant and ground wire detecting systems, are related to circuit service technique field, including ground wire is hung and earthmeter mechanism；Earthmeter mechanism includes ground column interconnecting piece and ohmmeter ontology；Ground column interconnecting piece is hung with ground wire and is connect by electric wire, for being connect with ground column；Ohmmeter ontology is connect with ground column interconnecting piece；Ohmmeter ontology includes resistance measurement component, master component and communication component；Resistance measurement component is connected with master component, is used for collection voltages information and current information, and information of voltage and current information are sent to master component；Master component obtains resistance information according to information of voltage and current information；Master component is connect by communication component with monitoring terminal by signal, for resistance information to be sent to monitor terminal；Efficiently solve the measurement request to ground resistance under particular surroundings；And has communication function so that monitor terminal energy real-time reception ground resistance.
Description
Technical field
The present invention relates to circuit service technique fields, more particularly, to a kind of earth connection measurement plant and ground wire detection system
System.
Background technology
Electrical verification and ground connection are the technical measures of line outage maintenance, are the guarantors for being related to the safety in production person and equipment safety
Barrier measure.Whether there is or not correct electrical verifications by operator, and whether the quality of electrical verification is qualified, does not have " secondary " to check on；In place whether ground connection, if
It is mounted on conductor insulation sheath, or is grounded the problems such as moving contact is without fix in position, field ground guardian can not be closely straight
Whether in place sight judges operation." false electrical verification " " virtual earth " that electrical verification is not in place, ground connection is not in place because this problem causes is drawn
The security incident risen often occurs, and is the safety related technical problems that must pay attention to.
In circuit maintenance engineering field, ground resistance is an important technology index of earthed system, is to weigh ground connection
System effectiveness, safety and the judgement whether satisfactory important parameter of earthed system.Therefore, temporary ground wire is being mounted
Afterwards, the ground resistance for measuring earth point is particularly important, can exclude the safety accident caused by imperfect earth.It is surveyed in ground resistance
During amount, earthing detection equipment can be used, as earth resistance tester or earth resistance meter carry out measurement of Grounding Resistance.Three
Electrode method is traditional method of Testing Earth-Contact Resistance, and when test has to squeeze into two auxiliary electrodes for having relative position to require,
But with the development of Chinese Urbanization, it is tested around grounding body and generally can not find soil, surface is covered by cement entirely, still more
The relative position of auxiliary electrode is also required when beating auxiliary electrode.Therefore traditional method of Testing Earth-Contact Resistance is actually detected
Again and again limited in the process, have been unable to meet the requirement of earth resistance.
The information for being disclosed in the background technology part is merely intended to deepen understanding of the general background technology to the present invention, and
It is not construed as recognizing or implying in any form that the information constitutes the prior art known to those skilled in the art.
Invention content
The purpose of the present invention is to provide a kind of earth connection measurement plant and ground wire detecting systems, without increase auxiliary electrode
The earth resistance for completing earth point, efficiently solves the measurement request to ground resistance under particular surroundings；And have
The test information of earth point can be transferred to monitor terminal by communication function by communication component.
To achieve the above object, the present invention provides following technical scheme：
In a first aspect, the present invention provides a kind of earth connection measurement plant, including：Ground wire is hung and earthmeter mechanism；
The earthmeter mechanism includes ground column interconnecting piece and ohmmeter ontology；Described ground column interconnecting piece and the ground wire
It hangs and is connected by electric wire, for being connect with ground column；The ohmmeter ontology is connect with described ground column interconnecting piece；
The ohmmeter ontology includes resistance measurement component, master component and communication component；Wherein：
The resistance measurement component is connected with the master component, is used for collection voltages information and current information, and will
The information of voltage and the current information are sent to the master component；The master component is for receiving the information of voltage
With the current information, and resistance information is obtained according to the information of voltage and the current information；The master component passes through
The communication component is connect with monitoring terminal by signal, for the resistance information to be sent to the monitor terminal.
Further, the ohmmeter ontology further includes display, and the display is connect with the master component signal,
For showing information according to the control command of the master component.
Further, the ohmmeter ontology further includes input module, the input module and the master component signal
Connection is used for and the master component human-computer interaction.
Further, the input module includes the button being connect with the master component signal.
Further, the ground wire satchel includes insulating bar and the hook for being set to described insulating bar one end, the insulation
Bar can be connect by the hook with high-tension bus-bar, and the hook is connect with described ground column interconnecting piece by electric wire.
Further, the ground wire is hung up equipped with electrical verification component, and the electrical verification component includes test side and controller；
The controller is set to the junction of the hook and the insulating bar, and the test side is set to the hook
On, and state of insulation is between the test side and the hook, the test side is connected with the controller in a signal way., described
Test side is used to detect the current information on high-tension bus-bar, and the current information is transferred to the controller.
Further, the electrical verification component further includes communication component, the communication component be set to it is described hook with it is described
The junction of insulating bar, the communication component are connect with the controller and the communication component signal respectively, the controller
The current information is transferred to the communication component by the communication component.
Further, the electrical verification component further includes alarm, and the alarm is connected with the controller in a signal way., described
Controller controls the opening and closing of the alarm according to the current information.
Further, the alarm includes voice guard and/or photoelectric alarm；
The voice guard is connected with the controller in a signal way., and the controller is according to described in current information control
The opening and closing of voice guard；
The photoelectric alarm is connected with the controller in a signal way., and the controller is according to described in current information control
The opening and closing of photoelectric alarm.
Second aspect, the present invention also provides a kind of ground wire detecting systems, including monitor terminal, further include in first aspect
Any one of them earth connection measurement plant, the monitor terminal are connect with the communication component signal in the earth connection measurement plant.
Earth connection measurement plant provided by the invention and ground wire detecting system have the advantages that：
First aspect present invention provides a kind of earth connection measurement plant, including：Ground wire is hung and earthmeter mechanism；Ground measuring
Measuring mechanism includes ground column interconnecting piece and ohmmeter ontology；Ground column interconnecting piece is hung with ground wire and is connect by electric wire, is used for and ground column
Connection；Ohmmeter ontology is connect with ground column interconnecting piece；Ohmmeter ontology includes resistance measurement component, master component and communication set
Part；Wherein：Resistance measurement component is connected with master component, is used for collection voltages information and current information, and by information of voltage
It is sent to master component with current information；Master component is used for receiving voltage information and current information, and according to information of voltage and
Current information obtains resistance information；Master component is connect by communication component with monitoring terminal by signal, for sending out resistance information
It send to monitor terminal.
In circuit maintenance engineering field, ground resistance is an important technology index of earthed system, is to weigh ground connection
System effectiveness, safety and the judgement whether satisfactory important parameter of earthed system.Therefore, temporary ground wire is being mounted
Afterwards, the ground resistance for measuring earth point is particularly important, can exclude the safety accident caused by imperfect earth.Three-electrode method is to pass
The method of Testing Earth-Contact Resistance of system, when test, have to squeeze into two auxiliary electrodes for having relative position to require, but with me
The development of state's urbanization is tested around grounding body and generally can not find soil, and surface is covered by cement entirely, still more beats auxiliary electrode
When the relative position of auxiliary electrode is also required.Therefore traditional method of Testing Earth-Contact Resistance is frequent during atual detection
It is limited, have been unable to meet the requirement of earth resistance.In the earth connection measurement plant that first aspect present invention provides, resistance measurement
Component uses twin coil non-contact type measuring method, information of voltage and current information in resistance measurement component measuring loop, and incites somebody to action
Information of voltage and current information are sent to master component；Resistance letter is calculated according to information of voltage and current information in master component
Breath, and monitor terminal can be sent to by communication component.
The earth connection measurement plant that first aspect present invention provides, without the ground resistance for increasing auxiliary electrode completion earth point
Test, efficiently solves the measurement request to ground resistance under particular surroundings；And has communication function, communication can be passed through
The test information of earth point is transferred to monitor terminal by component so that monitor terminal energy real-time reception ground resistance.
The ground wire detecting system that second aspect of the present invention provides is provided with the earthmeter of first aspect present invention offer
Device, all possessed advantageous effects of earth connection measurement plant to be provided with first aspect present invention.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of earth connection measurement plant provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of earthmeter mechanism in earth connection measurement plant provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of hook and electrical verification component in earth connection measurement plant provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of resistance measurement component in earth connection measurement plant provided in an embodiment of the present invention；
Fig. 5 is non-contact ground resistance measuring principle figure in earth connection measurement plant provided in an embodiment of the present invention；
Fig. 6 is the measuring principle figure of electrical verification component in earth connection measurement plant provided in an embodiment of the present invention.
Icon：100- ground wires are hung；200- earthmeters mechanism；The ground 300- column；110- insulating bars；120- is linked up with；130-
Electrical verification component；The test sides 131-；132- controllers；133- communication components；134- alarms；The ground 210- column interconnecting piece；220- electricity
Hinder table ontology；221- resistance measurement components；222- master components；223- communication components；224- displays；225- buttons.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The specific implementation mode of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific implementation mode stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6 are please referred to, below in conjunction with attached drawing to ground connection provided in an embodiment of the present invention
Measuring device and ground wire detecting system elaborate.
The embodiment of first aspect present invention provides a kind of earth connection measurement plant, including：Ground wire hangs 100 and ground measuring
Measuring mechanism 200；
Earthmeter mechanism 200 includes ground column interconnecting piece 210 and ohmmeter ontology 220；Ground column interconnecting piece 210 and ground wire
It hangs 100 to connect by electric wire, for connecting with ground column 300；Ohmmeter ontology 220 is connect with ground column interconnecting piece 210；
Ohmmeter ontology 220 includes resistance measurement component 221, master component 222 and communication component 223；Wherein：
Resistance measurement component 221 is connected with master component 222, is used for collection voltages information and current information, and will be electric
Pressure information and current information are sent to master component 222；Master component 222 is used for receiving voltage information and current information, and root
Resistance information is obtained according to information of voltage and current information；Master component 222 is connected by communication component 223 and monitoring terminal by signal
It connects, for resistance information to be sent to monitor terminal.
In circuit maintenance engineering field, ground resistance is an important technology index of earthed system, is to weigh ground connection
System effectiveness, safety and the judgement whether satisfactory important parameter of earthed system.Therefore, temporary ground wire is being mounted
Afterwards, the ground resistance for measuring earth point is particularly important, can exclude the safety accident caused by imperfect earth.Three-electrode method is to pass
The method of Testing Earth-Contact Resistance of system, when test, have to squeeze into two auxiliary electrodes for having relative position to require, but with me
The development of state's urbanization is tested around grounding body and generally can not find soil, and surface is covered by cement entirely, still more beats auxiliary electrode
When the relative position of auxiliary electrode is also required.Therefore traditional method of Testing Earth-Contact Resistance is frequent during atual detection
It is limited, have been unable to meet the requirement of earth resistance.In the earth connection measurement plant that the embodiment of first aspect present invention provides,
Resistance measurement component 221 uses twin coil non-contact type measuring method, information of voltage in 221 measuring loop of resistance measurement component and
Current information, and information of voltage and current information are sent to master component 222；Master component 222 is according to information of voltage and electricity
Resistance information is calculated in stream information, and can be sent to monitor terminal by communication component 223.
The earth connection measurement plant that the embodiment of first aspect present invention provides completes earth point without auxiliary electrode is increased
Earth resistance efficiently solves the measurement request to ground resistance under particular surroundings；And have communication function, it can be with
The test information of earth point is transferred to monitor terminal by communication component 223 so that monitor terminal energy real-time reception ground connection electricity
Resistance.
In at least one embodiment, resistance measurement component 221 realizes the survey of non-contact ground resistance using two-coil method
Amount, as shown in figure 5, R in figurexFor ground resistance to be measured, RearthFor ground resistance, R1…RnFor n ground resistance in parallel, then
Being tested circuit all-in resistance is：
Rloop=Rx+Rearth+(R1//...//Rn)
Due to RearthAnd R1…RnParallel value it is all very small, it can thus be assumed that tested loop resistance Rloop≈Rx。
In NtCircle pumping signal coil-end applies the alternating message source e for being not used in power frequency (such as 1kHz)0, become according to ideal
Depressor principle, e0Pass through coil NtOne is induced therewith with the alternating voltage e of frequency in tested single turn earth-return circuit1, and be：
In NrThe tested electric current that generation is incuded in circle electric current detecting coil is：
i1=i2Nr
Therefore, loop circuit RloopThat is RxIt can be in the hope of as：
In the optional scheme of the present embodiment, further, ohmmeter ontology 220 further includes display 224, display
224 connect with 222 signal of master component, for showing information according to the control command of master component 222.
In the optional scheme of the present embodiment, further, ohmmeter ontology 220 further includes input module, input module
It connect, is used for and 222 human-computer interaction of master component with 222 signal of master component.
In the optional scheme of the present embodiment, further, input module include connect with 222 signal of master component by
Key 225.
In the optional scheme of the present embodiment, further, ground wire hangs 100 including insulating bar 110 and is set to insulation
The hook 120 of 110 one end of bar, insulating bar 110 can be connect by hook 120 with high-tension bus-bar, and link up with 120 and ground column interconnecting piece
210 are connected by electric wire.
In the optional scheme of the present embodiment, further, ground wire hangs 100 and is equipped with electrical verification component 130, electrical verification component
130 include test side 131 and controller 132；
Controller 132 is set to the junction of hook 120 and insulating bar 110, and test side 131 is set on hook 120, and
State of insulation is between test side 131 and hook 120, test side 131 is connect with 132 signal of controller, and test side 131 is used for
The current information on high-tension bus-bar is detected, and current information is transferred to controller 132.
In at least one embodiment, test side 131 includes electrical verification induction antenna, and the distribution of electrical verification induction antenna is mounted on extension
The outer ring of hook 120, that is, signal is transmitted to the electrical verification in controller 132 by the position nearest apart from overhead line, induction antenna when operating
Processing circuit.It since the induced electricity of 10kV distribution overhead lines has several kilovolts, while being also possible to that electrical body can be touched, and hangs
120 potential of hook is ground potential, therefore induction antenna must ensure certain insulation with hook 120, ensure the resistance to pressure of 10kV when necessary
Degree.
In the optional scheme of the present embodiment, further, electrical verification component 130 further includes alarm 134, alarm 134
It is connect with 132 signal of controller, controller 132 controls the opening and closing of alarm 134 according to current information.
In the optional scheme of the present embodiment, further, alarm 134 includes voice guard and/or photoelectric alarm
Device；
Voice guard is connect with 132 signal of controller, and controller 132 controls opening for voice guard according to current information
It opens and closes；
Photoelectric alarm is connect with 132 signal of controller, and controller 132 controls opening for photoelectric alarm according to current information
It opens and closes.
In at least one embodiment, under the premise of not changing the operating habit of operating personnel, by controller 132, power supply
Battery (replaceable) and alarm 134 are encapsulated in smaller container (about 35*20*10mm), realize integrated design.It is whole to fill
Envelope realizes outdoor water-proof requirement.Structure design hangs 100 characteristic as tool based on ground wire, considers durable portable.
In the optional scheme of the present embodiment, further, electrical verification component 130 further includes communication component 133, communication component
133 are set to the junction of hook 120 and insulating bar 110, and communication component 133 is believed with controller 132 and communication component 223 respectively
Number connection, current information is transferred to communication component 223 by controller 132 by communication component 133.
In at least one embodiment, electrical verification component 130 has data-transformation facility, the communication component of electrical verification component 130
133 can with but be not limited only to as RF radio-frequency modules, electrical verification component 130 can be penetrated electrical verification information and battery level information by RF
Frequency module is sent to the RF radio-frequency modules of communication component 223 in resistance measurement mechanism.
The embodiment of second aspect of the present invention provides a kind of ground wire detecting system, including monitor terminal, further includes
Earth connection measurement plant in any one of one side embodiment, monitor terminal are believed with the communication component 223 in earth connection measurement plant
Number connection.
The ground wire detecting system that the embodiment of second aspect of the present invention provides is provided with the implementation of first aspect present invention
The earth connection measurement plant that example provides, to have possessed by the earth connection measurement plant of the embodiment of first aspect present invention offer
All advantageous effects.
The earth connection measurement plant to the present invention and ground wire detecting system are illustrated above, and still, the present invention is unlimited
Due to above-mentioned specific embodiment various deformations or change can be carried out without departing from the scope of the claims.
The invention includes various changes and modifications within the scope of the claims.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：It is still
Either which part or all technical features can be carried out so that technical scheme described in the above embodiments is modified
Equivalent replacement；And these modifications or replacements, it does not separate the essence of the corresponding technical solution various embodiments of the present invention technical side
The range of case.
Claims (10)
1. a kind of earth connection measurement plant, which is characterized in that including：Ground wire is hung and earthmeter mechanism；
The earthmeter mechanism includes ground column interconnecting piece and ohmmeter ontology；Described ground column interconnecting piece is hung logical with the ground wire
Electric wire connection is crossed, for being connect with ground column；The ohmmeter ontology is connect with described ground column interconnecting piece；
The ohmmeter ontology includes resistance measurement component, master component and communication component；Wherein：
The resistance measurement component is connected with the master component, is used for collection voltages information and current information, and will be described
Information of voltage and the current information are sent to the master component；The master component is for receiving the information of voltage and institute
Current information is stated, and resistance information is obtained according to the information of voltage and the current information；The master component passes through described
Communication component is connect with monitoring terminal by signal, for the resistance information to be sent to the monitor terminal.
2. earth connection measurement plant according to claim 1, which is characterized in that the ohmmeter ontology further includes display,
The display is connect with the master component signal, for showing information according to the control command of the master component.
3. earth connection measurement plant according to claim 1, which is characterized in that the ohmmeter ontology further includes input group
Part, the input module are connect with the master component signal, are used for and the master component human-computer interaction.
4. earth connection measurement plant according to claim 3, which is characterized in that the input module includes and the master control group
The button of part signal connection.
5. earth connection measurement plant according to claim 1, which is characterized in that the ground wire satchel includes insulating bar and setting
Hook in described insulating bar one end, the insulating bar can be connect by the hook with high-tension bus-bar, and the hook and institute
Ground column interconnecting piece is stated to connect by electric wire.
6. earth connection measurement plant according to claim 5, which is characterized in that the ground wire is hung up equipped with electrical verification component,
The electrical verification component includes test side and controller；
The controller is set to the junction of the hook and the insulating bar, and the test side is set on the hook,
And state of insulation is between the test side and the hook, the test side is connected with the controller in a signal way., the inspection
It surveys end to be used to detect the current information on high-tension bus-bar, and the current information is transferred to the controller.
7. earth connection measurement plant according to claim 6, which is characterized in that the electrical verification component further includes communication component,
The communication component is set to the hook and the junction of the insulating bar, the communication component respectively with the controller and
The current information is transferred to the communication set by the communication component signal connection, the controller by the communication component
Part.
8. earth connection measurement plant according to claim 6, which is characterized in that the electrical verification component further includes alarm, institute
Alarm is stated to be connected with the controller in a signal way., the controller according to the current information control the alarm unlatching and
It closes.
9. earth connection measurement plant according to claim 8, which is characterized in that the alarm include voice guard and/
Or photoelectric alarm；
The voice guard is connected with the controller in a signal way., and the controller controls the sound according to the current information
The opening and closing of alarm；
The photoelectric alarm is connected with the controller in a signal way., and the controller controls the photoelectricity according to the current information
The opening and closing of alarm.
10. a kind of ground wire detecting system, including monitor terminal, which is characterized in that further include any one of claim 1 to 9
The earth connection measurement plant, the monitor terminal are connect with the communication component signal in the earth connection measurement plant.
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| CN201810743221.6A CN108459207A (en) | 2018-07-06 | 2018-07-06 | Earth connection measurement plant and ground wire detecting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810743221.6A CN108459207A (en) | 2018-07-06 | 2018-07-06 | Earth connection measurement plant and ground wire detecting system |
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| CN109490635A (en) * | 2018-12-25 | 2019-03-19 | 国网江苏省电力有限公司南京供电分公司 | Pole tower ground resistance on-line monitoring system and on-line monitoring method |
| CN111983323A (en) * | 2020-07-03 | 2020-11-24 | 中广核核电运营有限公司 | Method and device for measuring resistance value of generator sealing tile by induction voltage method |
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