CN206975120U - Insulating resistance measuring device - Google Patents
Insulating resistance measuring device Download PDFInfo
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- CN206975120U CN206975120U CN201720875342.7U CN201720875342U CN206975120U CN 206975120 U CN206975120 U CN 206975120U CN 201720875342 U CN201720875342 U CN 201720875342U CN 206975120 U CN206975120 U CN 206975120U
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- 238000004458 analytical method Methods 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 11
- 238000012546 transfer Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004364 calculation method Methods 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000011160 research Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 15
- 230000005611 electricity Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
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Abstract
Insulating resistance measuring device, including grounding resistance sensor, remote transmitting device and host computer, the electric current, voltage and temperature data of sensing are transferred to remote transmitting device by described grounding resistance electric resistance sensor by communication interface, and remote transmitting device is communicated by GPRS with host computer.The beneficial effects of the utility model are：This research employs the data transfer mode that the transmission of RS485 interfaces and 3G communications are combined in data transfer, realizes the long-distance transmissions of measurement data information.Link is calculated in analysis, the utility model forms trend analysis using host computer centralized calculation analysis whole network grounding resistance for each monitoring point, to find that potential faults provide data supporting in time.
Description
Technical field
A kind of insulating resistance measuring device is the utility model is related to, belongs to power system measuring field.
Background technology
The method of Testing Earth-Contact Resistance that uses at present of the country is a lot, including fall-of-potential method, two-point method, line-of-sight course, three electrode method,
Four-electrode method, electricity current method and pincers survey method etc..Wherein fall-of-potential method begins to use from the sixties in last century.This method cloth
Two auxiliary electrodes of voltage and current are put, and by obtaining grounding body and voltage pole after constantly changing the position measurement of potentiometer
Potential drop curve, analysis measurement curve, obtain grounding resistance.Although fall-of-potential method is studied personnel's accreditation, it needs
Repeatedly measurement, workload is big, the drafting of potential drop curve also relative difficulty, is unfavorable for execute-in-place.
The general principle of measurement of Grounding Resistance is to utilize Ohm's law.When there is earth current inflow on a certain grounding electrode
The current potential of earthing pole is higher than surrounding earth, and the ratio between current potential rising value and earth current now are exactly the grounding resistance of the electrode.
When actually measuring, grounding resistance is used for using the potential drop and measure electric current occurred on grounding electrode.
Three-level method is also required to auxiliary electrode when measuring, the method is needed in strict accordance with operational procedure distribution region, and
Down conductor is have to be off during measurement, is not suitable for the densely distributed area of building, and it is cumbersome.Another kind is split-core type meter
Method, when measurement has the earthed system in loop, it is not required to disconnect down conductor, is not required to auxiliary electrode, there is preferable practical valency
Value.Application method still needs artificial regular in-site measurement at present, can only although the measurement of widely used split-core type meter method is convenient
It is independent to measure each point value.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of insulating resistance measuring device, solves grounding resistance measurement number
According to being unable to remote transmission, can only independently measure the problems such as each point value.
The utility model is achieved through the following technical solutions：
Insulating resistance measuring device, including grounding resistance sensor, remote transmitting device and host computer, described ground connection electricity
The electric current, voltage and temperature data of sensing are transferred to remote transmitting device by resistance electric resistance sensor by communication interface, remotely
Transmitting device is communicated by GPRS with host computer.
Wherein, described grounding resistance sensor includes triggering power module, induced-current module and temperature sensor, institute
The triggering power module stated is connected with potential winding, there is provided pumping signal, and a potential E, sensing are sensed on tested loop
Current module is connected with current coil, and electric current I is produced on tested loop, the temperature of temperature sensor senses surrounding environment, is touched
Generating source module, induced-current module, temperature sensor send data to remote transmitting device by communication interface.
Wherein, module and solar cell when described remote transmitting device is including microprocessor, GPRS module, automatic pair
Plate, described microprocessor are connected with module at automatic pair, and module is used for the ground connection that will be received by communication interface at automatic pair
The data message of electric resistance sensor transmission is measured in real time, and the data measured in real time are transferred into microprocessor, microprocessor
Data message after processing is transferred to host computer by device by GPRS module, and microprocessor is connected with charge control module, charging
Control module in lead-acid accumulator, the power storage in solar panel is provided to power supply for remote transmitting device.
Wherein, described host computer is provided with analysis and processing unit, and it is by the information of the grounding resistance sensor transmissions
Stored, calculated, analyzed, shown and recorded；Analysis and processing unit includes storage module, computing module, analysis module, aobvious
Show one or several in module, logging modle.
Wherein, the quantity of described grounding resistance sensor is at least one.
Wherein, described communication interface is RS485 interfaces.
Wherein, described microprocessor is Freescale MC9S08 microprocessors, the model TC35i of GPRS module, too
The model 12V10W of positive energy cell panel, the model PanasonicLC-R0612P of lead-acid accumulator, the capacity of battery are
6V12AH。
Compared with prior art, the beneficial effects of the utility model are：This research employs RS485 in data transfer and connect
The data transfer mode that port transmission and 3G communications are combined, realize the long-distance transmissions of measurement data information.Calculated in analysis
Link, the utility model form trend point using host computer centralized calculation analysis whole network grounding resistance for each monitoring point
Analysis, to find that potential faults provide data supporting in time.The utility model meets country on electric and Electrician Operation standard gauge
Model.Safety, stable, reliably, economic, use easy to install.It is compatible with existing Related product.The specific implementation of retrofit work should use up
Amount reduces the influence to normal power supply.
Brief description of the drawings
Fig. 1 is the structured flowchart of the utility model insulating resistance measuring device.
Embodiment
This law is further described with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
As shown in figure 1, insulating resistance measuring device, including grounding resistance sensor, remote transmitting device and host computer, connect
The electric current, voltage and temperature data of sensing are transferred to remote transmitting device by ground resistance electric resistance sensor by communication interface,
Remote transmitting device is communicated by GPRS with host computer.The quantity of grounding resistance sensor is at least one.
Grounding resistance sensor includes triggering power module, induced-current module and temperature sensor, triggers power module
It is connected with potential winding, there is provided pumping signal, and a potential E, induced-current module and electric current line are sensed on tested loop
Circle is connected, and electric current I, the temperature of temperature sensor senses surrounding environment, triggering power module, induced electricity are produced on tested loop
Flow module, temperature sensor send data to remote transmitting device by communication interface.Remote transmitting device includes micro- place
Reason device, GPRS module, automatic pair when module and solar panel, described microprocessor be connected with module at automatic pair, oneself
Module is used in real time be measured the data message of the grounding resistance sensor transmissions received by communication interface at dynamic pair, and
The data measured in real time are transferred to microprocessor, the data message after processing is transferred to by microprocessor by GPRS module
Position machine, microprocessor are connected with charge control module, and charge control module is by the power storage in solar panel in plumbic acid
In battery, power supply is provided for remote transmitting device.Host computer is provided with analysis and processing unit, and it senses the grounding resistance
The information that device passes to is stored, is calculated, is analyzed, shown and recorded；Analysis and processing unit includes storage module, calculates mould
It is one or several in block, analysis module, display module, logging modle.
Communication interface is RS485 interfaces.Microprocessor is Freescale MC9S08 microprocessors, the model of GPRS module
TC35i, the model 12V10W of solar panel, the model PanasonicLC-R0612P of lead-acid accumulator, battery
Capacity be 6V12AH.
Claims (7)
1. insulating resistance measuring device, it is characterised in that：Including grounding resistance sensor, remote transmitting device and host computer, institute
The electric current, voltage and temperature data of sensing are transferred to remote transmission by the grounding resistance electric resistance sensor stated by communication interface
Device, remote transmitting device are communicated by GPRS with host computer.
2. insulating resistance measuring device according to claim 1, it is characterised in that：Described grounding resistance sensor includes
Triggering power module, induced-current module and temperature sensor, described triggering power module are connected with potential winding, there is provided swash
Signal is encouraged, and senses a potential E on tested loop, induced-current module is connected with current coil, is produced on tested loop
Raw electric current I, the temperature of temperature sensor senses surrounding environment, triggering power module, induced-current module, temperature sensor are logical
Cross communication interface and send data to remote transmitting device.
3. insulating resistance measuring device according to claim 1, it is characterised in that：Described remote transmitting device includes micro-
Processor, GPRS module, automatic pair when module and solar panel, described microprocessor be connected with module at automatic pair,
Module is used in real time be measured the data message of the grounding resistance sensor transmissions received by communication interface at automatic pair,
And the data measured in real time are transferred to microprocessor, the data message after processing is transferred to by microprocessor by GPRS module
Host computer, microprocessor are connected with charge control module, and charge control module is by the power storage in solar panel in lead
In acid accumulator, power supply is provided for remote transmitting device.
4. insulating resistance measuring device according to claim 1, it is characterised in that：Described host computer is provided with analysis
Unit is managed, the information of the grounding resistance sensor transmissions is stored, calculated, analyzed, show and recorded by it；Analyzing and processing
Unit includes one or several in storage module, computing module, analysis module, display module, logging modle.
5. insulating resistance measuring device according to claim 1, it is characterised in that：The number of described grounding resistance sensor
Amount is at least one.
6. insulating resistance measuring device according to claim 1, it is characterised in that：Described communication interface connects for RS485
Mouthful.
7. insulating resistance measuring device according to claim 3, it is characterised in that：Described microprocessor is Freescale
MC9S08 microprocessors, the model TC35i of GPRS module, the model 12V10W of solar panel, lead-acid accumulator
Model PanasonicLC-R0612P, the capacity of battery is 6V12AH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720875342.7U CN206975120U (en) | 2017-07-19 | 2017-07-19 | Insulating resistance measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720875342.7U CN206975120U (en) | 2017-07-19 | 2017-07-19 | Insulating resistance measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206975120U true CN206975120U (en) | 2018-02-06 |
Family
ID=61401880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720875342.7U Active CN206975120U (en) | 2017-07-19 | 2017-07-19 | Insulating resistance measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206975120U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188098A (en) * | 2018-09-17 | 2019-01-11 | 吉林省泰华电子股份有限公司 | A kind of ground resistance on-line monitoring management system |
| CN113534706A (en) * | 2021-07-12 | 2021-10-22 | 河南九域博慧方舟咨询发展有限公司 | Intelligent detection and analysis system for grounding resistance of transformer substation |
-
2017
- 2017-07-19 CN CN201720875342.7U patent/CN206975120U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188098A (en) * | 2018-09-17 | 2019-01-11 | 吉林省泰华电子股份有限公司 | A kind of ground resistance on-line monitoring management system |
| CN113534706A (en) * | 2021-07-12 | 2021-10-22 | 河南九域博慧方舟咨询发展有限公司 | Intelligent detection and analysis system for grounding resistance of transformer substation |
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