CN208239517U - A kind of induced voltage measuring device - Google Patents
A kind of induced voltage measuring device Download PDFInfo
- Publication number
- CN208239517U CN208239517U CN201820954822.7U CN201820954822U CN208239517U CN 208239517 U CN208239517 U CN 208239517U CN 201820954822 U CN201820954822 U CN 201820954822U CN 208239517 U CN208239517 U CN 208239517U
- Authority
- CN
- China
- Prior art keywords
- induced voltage
- measurement module
- measuring device
- threshold
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005259 measurement Methods 0.000 claims abstract description 64
- 238000012806 monitoring device Methods 0.000 claims description 16
- 230000003068 static effect Effects 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
The utility model discloses a kind of induced voltage measuring devices, comprising: the first measurement module, the second measurement module and conduction module, whether induced voltage of first measurement module in decision circuitry is more than predetermined voltage threshold, and is measured to the induced voltage for being more than predetermined voltage threshold；Second measurement module is for measuring induced voltage when being less than predetermined voltage threshold；Conduction module is for being conducted to the second measurement module for circuit when the first measurement module judges that induced voltage is less than predetermined voltage threshold.By whether being more than that predetermined voltage threshold judges to the induced voltage in circuit; separated measurement is carried out with the induced voltage for being less than predetermined voltage threshold to more than predetermined voltage threshold; and conduction module is set; height induced voltage is converted to corresponding measuring circuit and is measured; it is unable to measure to solve the problem of to lack in resistor voltage divider circuit in the prior art high voltage circuit protection and can solve elevated track induced voltage.
Description
Technical field
The utility model relates to induced voltage technical field more particularly to a kind of induced voltage measuring devices.
Background technique
In the prior art for the measurement of line influence voltage mainly based on resistor voltage divider circuit, pass through measurement resistance point
The electric current that divider resistance is flowed through in volt circuit, calculates inductive voltage value.
Since line influence voltage value can not prejudge range, if induced voltage is excessively high, it is easy in the prior art point
Piezoresistance breakdown, there are biggish security risks, cannot achieve measurement so as to cause excessively high line influence voltage, i.e., existing skill
Line influence voltage measurement range in art is limited.
Utility model content
The utility model provides a kind of induced voltage measuring device, it is intended to solve in resistor voltage divider circuit in the prior art
Lack high voltage circuit protection, and can solve the problem of elevated track induced voltage is unable to measure.
The utility model provides a kind of induced voltage measuring device comprising:
Whether the first measurement module is more than predetermined voltage threshold for the induced voltage in decision circuitry, and to more than institute
The induced voltage for stating predetermined voltage threshold measures；
Second measurement module, for being measured to induced voltage when being less than the predetermined voltage threshold；
Conduction module, for being incited somebody to action when first measurement module judges that induced voltage is less than the predetermined voltage threshold
Circuit is conducted to second measurement module.
Whether the utility model embodiment is right by being more than that predetermined voltage threshold judges to the induced voltage in circuit
It carries out separating measurement more than predetermined voltage threshold and the induced voltage for being less than predetermined voltage threshold, and conduction module is set, it will
Height induced voltage is converted to corresponding measuring circuit and is measured, to solve to lack in resistor voltage divider circuit in the prior art
High voltage circuit protection, and can solve the problem of elevated track induced voltage is unable to measure.
Detailed description of the invention
In order to illustrate more clearly of the utility model embodiment technical solution, will make below to required in embodiment description
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the utility model, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of structural schematic diagram of induced voltage measuring device provided by the embodiment of the utility model；
Fig. 2 is that a kind of structure of the first measurement module of induced voltage measuring device provided by the embodiment of the utility model is shown
It is intended to；
Fig. 3 is the structural schematic diagram of another induced voltage measuring device provided by the embodiment of the utility model；
Fig. 4 is a kind of structural representation of the first end of induced voltage measuring device provided by the embodiment of the utility model
Figure；
Fig. 5 is a kind of structure chart of the second end of induced voltage measuring device provided by the embodiment of the utility model；
Fig. 6 is a kind of structural representation of the conduction module of induced voltage measuring device provided by the embodiment of the utility model
Figure.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that the embodiments are a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
It should be appreciated that ought use in this specification and in the appended claims, term " includes " and "comprising" instruction
Described feature, entirety, step, operation, the presence of element and/or component, but one or more of the other feature, whole is not precluded
Body, step, operation, the presence or addition of element, component and/or its set.
It is also understood that in this utility model term used in the description merely for the sake of description specific embodiment
Purpose and be not intended to limit the utility model.As used in the utility model specification and appended book
Like that, other situations unless the context is clearly specified, otherwise " one " of singular, "one" and "the" are intended to include plural number
Form.
It will be further appreciated that the term used in the utility model specification and appended book " and/
Or " refer to any combination and all possible combinations of one or more of associated item listed, and including these groups
It closes.
Referring to Fig. 1, Fig. 1 is a kind of structural representation of induced voltage measuring device provided by the embodiment of the utility model
Figure comprising the first measurement module 100, the second measurement module (are not shown in the figure, are connected with out interface for connecting standing crop
The voltmeter of journey carries out line voltage distribution measurement) and conduction module 200.First measurement module 100 is for the sense in decision circuitry
Answer whether voltage is more than predetermined voltage threshold, and the induced voltage for being more than predetermined voltage threshold is measured；Second measurement mould
Block is for measuring induced voltage when being less than predetermined voltage threshold；Conduction module 200 is used in the first measurement module
100 judge that circuit is conducted to the second measurement module when induced voltage is less than predetermined voltage threshold.
Specifically, input voltage in interface from figure inputs, when measuring to input voltage, first by the first measurement
Whether module 100 is more than that predetermined voltage threshold judges to induced voltage, can be according to the maximum actually used in design
The voltage value range that the voltmeter of range can measure designs, such as the range of existing voltmeter is 0~5000V, be arranged at this time
Predetermined voltage threshold is 5000V, then the voltage within 5000V can be measured directly by voltmeter, 0~5000V
The voltmeter of range is connected to the second measurement module, for judging that induced voltage is no more than predeterminated voltage in the first measurement module 100
It when threshold value 5000V, is connected by conduction module 200, the numerical value of voltage is measured.When the first measurement module 100 determines sense
When voltage being answered to be more than predetermined voltage threshold 5000V, big voltage is carried out by the big voltage measurement module in the first measurement module 100
Measurement, can be for example by using the principle of gap discharge, and the output end in the gap between two conductive rods monitors predetermined electricity
When stream, the reading of induced voltage is known roughly by the spacing in gap.
Specifically, by whether being more than that predetermined voltage threshold judges to the induced voltage in circuit, to more than default
Voltage threshold and the induced voltage for being less than predetermined voltage threshold carry out separating measurement, and conduction module is arranged, and height is incuded
Voltage is converted to corresponding measuring circuit and is measured, to solve to lack high voltage electricity in resistor voltage divider circuit in the prior art
Road protection, and can solve the problem of elevated track induced voltage is unable to measure.
As shown in figure 3, further, the device of the present embodiment can be carried out multiple parallel connections, such as three groups of measurements dress in figure
Parallel connection is set, three voltage input point in1~in3 can be measured simultaneously, there are three output point out1 for the corresponding input of conduction module 200
~out3, ammeter (in figure A1~A3) of each first measurement module 100 with a monitoring discharge current, each electric discharge electricity
Road is correspondingly provided with single-phase plug-in strip (S1~S3 in figure).Three groups of measurements can be so carried out simultaneously, it can be big according to the voltage of measurement point
Small next accurate or rough or induced voltage numerical value, improves measurement efficiency.
As shown in Fig. 2, in one embodiment, the first measurement module 100 includes the first end being connected with voltage input end
110, and with the first end 110 is spaced apart can do opposite the second mobile end 120 relative to the first end 110, the
The output end of two ends 120 is connected with for reading the first monitoring device 130 of discharge current size in measurement route and reading
Second monitoring device (not shown) of the clearance distance between the first end and second end.
Specifically, the first measurement module 100 includes the first end 110 and the second end 120, the first end 110 and second
Spaced apart between end 120, this distance is the distance of the safe enough retained when accessing corresponding voltage, first
When voltage is accessed in end 110, by will relatively-movable second end 120 it is mobile towards the first end 110, while monitoring the
The discharge current size of the output end of two ends 120, can be preset the reading of a discharge current, can be by discharge loop
Ammeter (131 in such as figure, being contained in the first monitoring device 130) intuitively know, and in the default electricity of input end input
The equal input voltage of threshold value is pressed, the first end 110 and the are recorded when the reading of ammeter on discharge loop reaches default value
The clearance distance (can be read by the second monitoring device of setting) of two ends 120, the clearance distance measured at this time are
Judgment criteria of one measurement module 100 when reaching default discharge current reading, is denoted as gap threshold, subsequent when judging again, the
After reaching predetermined current reading, clearance distance and the gap threshold measured according to the second monitoring device is compared one monitoring device
Right, if clearance distance is greater than gap threshold, input voltage value is greater than predetermined voltage threshold, passes through the clearance distance actually obtained
Induced voltage numerical value is roughly calculated out, if clearance distance is not more than gap threshold, input voltage value is not more than predeterminated voltage threshold
Input voltage can be forwarded to the second measurement module by conduction module 200 and carry out precise measurement by value.Meanwhile it can be in the first prison
It surveys and a single-phase plug-in strip (S in such as figure) is set on the current measurement circuit of device 130, carry out cut-offfing for control circuit.
In one embodiment, the first monitoring device 130 is used for when discharge current reaches predetermined current threshold, control second
End 120 stops movement.
Specifically, when the first monitoring device 130 reading reaches predetermined current threshold, the second end 120 of control stops moving
It is dynamic, the clearance distance of the first end 110 and the second end 120, and and gap threshold are obtained by the second monitoring device at this time
It is compared, to know the initial ranges of the induced voltage of measurement.In the concrete realization, control the second end 120 movement,
Stopping and homing can be operated by automation equipment monitoring, can also pass through manual hand manipulation in some simple machines
It executes.
In one embodiment, the second monitoring device is used for when clearance distance reaches prepsetting gap distance threshold, control the
Two ends 120 stop movement.
Specifically, the second monitoring device can control gap second end head when monitoring that clearance distance reaches gap threshold
120 stop movement, if because it is pre- to illustrate that the reading of the first monitoring device 130 does not reach still in movement for the second end 120 at this time
If current threshold, then the efficiency of measuring device can be improved certainly less than predetermined voltage threshold in the induced voltage of input terminal at this time.
In one embodiment, conduction module 200 judges that induced voltage is less than predeterminated voltage threshold in the first measurement module 100
When value, the second end 120 is controlled far from the first end 110, and by input voltage and is conducted to the second measurement module.
Specifically, input voltage is determined no more than after predetermined voltage threshold in the first measurement module 100, conduction module
Input voltage is accessed the second measurement module by 200 carries out precise measurement, and before measuring, conduction module 200 controls the second end
120 are connected far from the first end 110 to being returned to initial position, then by the second measurement module.
As shown in figure 4, in one embodiment, the first end 110 is including firm banking 111 and is fixed on firm banking
The first gap stick 112 on 111 is detachably connected between first gap stick 112 and firm banking 111.
As shown in figure 5, in one embodiment, the second end 120 is including mobile base 121 and is fixed on mobile base
The second gap stick 122 on 121 is detachably connected between second gap stick 122 and mobile base 121.
Specifically, to be detachably connected between the first gap stick 112 and firm banking 111 of the first end 110, Yi Ji
To be detachably connected such as being threadedly coupled, be clamped between the second gap stick 122 and mobile base 121 of two ends 120, mesh
Be the replacement for facilitating gap stick, convenient for device repair.
As shown in fig. 6, in one embodiment, conduction module 200 is parallel to the voltage input end of the first measurement module 100,
It includes static contact 210, moving contact 220 and the mobile device 230 moved for controlling moving contact 220 relative to static contact 210.
Specifically, conduction module 200 is an automatic closing device, when input voltage is no more than predetermined voltage threshold,
The mobile device 230 of conduction module 200 drives moving contact 220 mobile towards static contact 210, until moving contact 220 is inserted into stationary contact
Input voltage is imported the second measurement module and measured by closed communicating in first 210.In the specific implementation, operator can also be passed through
Member manual closing come realize conduction module 200 closure conducting.
In one embodiment, elastic copper sheet (not shown) is equipped with inside static contact 210.
Specifically, elastic copper sheet is set inside static contact 210, can moving contact 220 insertion after lock, it is ensured that connection it is steady
It is qualitative, it in the concrete realization, is not limited to realize the function using elastic copper sheet, other occlusion structures or locking can also be passed through
Structure is realized.
In one embodiment, the initial spacing between the static contact 210 and moving contact 220 of conduction module 200 is not less than the
Initial spacing between the first end 110 and the second end 120 of one measurement module 100.
Specifically, because the structure between the moving contact 220 of conduction module 200 and static contact 210 is similar to the first end 110
And second between end 120 as a result, if input voltage is excessive, between also being generated between moving contact 220 and static contact 210
Gap electric discharge phenomena, because the initial spacing between the first end 110 and the second end 120 be safe spacing, then by moving contact 220 with
Initial spacing between static contact 210 is arranged not less than above-mentioned safe spacing, it can be ensured that the safety of the second measurement module.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can be readily occurred in various
Equivalent modifications or substitutions, these modifications or substitutions should be covered within the scope of the utility model.Therefore, this is practical
Novel protection scope should be subject to the protection scope in claims.
Claims (10)
1. a kind of induced voltage measuring device characterized by comprising
Whether the first measurement module is more than predetermined voltage threshold for the induced voltage in decision circuitry, and to more than described pre-
If the induced voltage of voltage threshold measures；
Second measurement module, for being measured to induced voltage when being less than the predetermined voltage threshold；
Conduction module, for when first measurement module judges that induced voltage is less than the predetermined voltage threshold by circuit
It is conducted to second measurement module.
2. induced voltage measuring device according to claim 1, which is characterized in that first measurement module includes and electricity
The first end for pressing input terminal connected, and with first end it is spaced apart can relatively described first end do opposite direction
The second mobile end, the output end of second end are connected with first for reading discharge current size in measurement route
Monitoring device and the second monitoring device for reading the clearance distance between first end and second end.
3. induced voltage measuring device according to claim 2, which is characterized in that first monitoring device is used in institute
When stating discharge current and reaching predetermined current threshold, controls second end and stop movement.
4. induced voltage measuring device according to claim 3, which is characterized in that second monitoring device is used in institute
When stating clearance distance and reaching prepsetting gap distance threshold, controls second end and stop movement.
5. induced voltage measuring device according to claim 4, which is characterized in that the conduction module is surveyed described first
When amount module judges that the induced voltage is less than the predetermined voltage threshold, second end is controlled far from the first end
Head, and input voltage is conducted to second measurement module.
6. induced voltage measuring device according to claim 2, which is characterized in that first end includes firm banking
And it is fixed on the first gap stick on the firm banking, it is detachable between first gap stick and the firm banking
Connection.
7. induced voltage measuring device according to claim 2, which is characterized in that second end includes mobile base
And it is fixed on the second gap stick in the mobile base, it is detachable between second gap stick and the mobile base
Connection.
8. induced voltage measuring device according to claim 2, which is characterized in that the conduction module is parallel to described
The voltage input end of one measurement module comprising static contact, moving contact and for controlling the relatively described stationary contact of the moving contact
The mobile mobile device of head.
9. induced voltage measuring device according to claim 8, which is characterized in that be equipped with sprung copper inside the static contact
Piece.
10. induced voltage measuring device according to claim 8, which is characterized in that the stationary contact of the conduction module
Head moving contact between initial spacing not less than first measurement module first end and second end it
Between initial spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820954822.7U CN208239517U (en) | 2018-06-20 | 2018-06-20 | A kind of induced voltage measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820954822.7U CN208239517U (en) | 2018-06-20 | 2018-06-20 | A kind of induced voltage measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208239517U true CN208239517U (en) | 2018-12-14 |
Family
ID=64574714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820954822.7U Active CN208239517U (en) | 2018-06-20 | 2018-06-20 | A kind of induced voltage measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208239517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802480A (en) * | 2018-06-20 | 2018-11-13 | 国网安徽省电力有限公司滁州供电公司 | A kind of induced voltage measuring device |
-
2018
- 2018-06-20 CN CN201820954822.7U patent/CN208239517U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802480A (en) * | 2018-06-20 | 2018-11-13 | 国网安徽省电力有限公司滁州供电公司 | A kind of induced voltage measuring device |
| CN108802480B (en) * | 2018-06-20 | 2024-02-06 | 国网安徽省电力有限公司滁州供电公司 | Induced voltage measuring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103698695B (en) | The method of testing that a kind of multifunctional high pressure breaker electrical characteristic test device is performed | |
| CN103033667B (en) | Current measurement device and method | |
| CN208239517U (en) | A kind of induced voltage measuring device | |
| CN105353302B (en) | The detection method of switchgear arc time | |
| CN101968524A (en) | Division test method and tester for multi-point grounding of common loop | |
| CN208270639U (en) | A kind of voltage measuring apparatus | |
| CN209707595U (en) | Cable conductors resistance testing device | |
| CN106226601A (en) | A kind of detection device of weak current automatization insulation resistance | |
| CN205139349U (en) | Arrester discharge counter and leakage current table check gauge | |
| CN202351396U (en) | On-load tap-changer testing device | |
| CN211179977U (en) | Pincerlike meter | |
| CN104360680B (en) | Phase selection controller test system and method in a kind of intelligent substation | |
| CN209387839U (en) | A kind of device of bulk measurement battery core polarity size | |
| CN108802480A (en) | A kind of induced voltage measuring device | |
| CN203561688U (en) | Monitoring device and system for grounding current of transformer | |
| CN208283456U (en) | A kind of route survey device | |
| CN103712537B (en) | Measurement apparatus for high-voltage switch cabinet mechanical stroke | |
| CN108828293A (en) | A kind of voltage measuring apparatus | |
| CN103743999A (en) | Device and method for finding breakpoint position of electric wire/cable | |
| CN202929189U (en) | Zinc oxide arrester detector checking apparatus | |
| CN205656282U (en) | Whole group's test bench of electromagnetic type relay | |
| CN103630727A (en) | Load checking ammeter | |
| CN205643480U (en) | Novel take pincerlike meter of radio communication function | |
| CN210155267U (en) | Relay detection equipment | |
| CN209432928U (en) | For testing the detection device of high frequency modular electrophoresis rectifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |