CN106885934B - A kind of bus voltage measurement device established in three-phase integrated GIS tank body closed end - Google Patents
A kind of bus voltage measurement device established in three-phase integrated GIS tank body closed end Download PDFInfo
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- CN106885934B CN106885934B CN201710135921.2A CN201710135921A CN106885934B CN 106885934 B CN106885934 B CN 106885934B CN 201710135921 A CN201710135921 A CN 201710135921A CN 106885934 B CN106885934 B CN 106885934B
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- 238000005259 measurement Methods 0.000 title claims abstract description 36
- 239000004020 conductor Substances 0.000 claims abstract description 46
- 239000002184 metal Substances 0.000 claims description 33
- 229910052751 metal Inorganic materials 0.000 claims description 33
- 230000005611 electricity Effects 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 7
- 239000010408 film Substances 0.000 claims 2
- 239000004642 Polyimide Substances 0.000 claims 1
- 229920001721 polyimide Polymers 0.000 claims 1
- 239000010409 thin film Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 30
- 238000012544 monitoring process Methods 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
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- 238000011105 stabilization Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses a kind of bus voltage measurement devices established in three-phase integrated GIS tank body closed end, which includes gas insulated combined electrical equipment, measuring device and voltage display；Wherein, gas insulated combined electrical equipment includes outer tank body and the high-pressure conductor with cylindrical structure；Measuring device one end and the closed end of outer tank body connect；Voltage display is connect with the measuring device other end, for high-pressure conductor to be calculated and be shown to the voltage value of outer tank body.Therefore, using a kind of bus voltage measurement device established in three-phase integrated GIS tank body closed end provided by the invention, simple bus voltage measurement device can be passed through, voltage value of the high-pressure conductor to outer tank body in acquisition gas insulated combined electrical equipment, and then the accurate voltage value determined when ultra-high-tension power transmission line is run, realize the purpose of the operating status of real-time monitoring ultra-high-tension power transmission line.
Description
Technical field
The present invention relates to field of power systems, more particularly to a kind of mother established in three-phase integrated GIS tank body closed end
Line voltage measurement device.
Background technique
Safety power transmission, reliable transmission of electricity, economic electric transmission are present main trends, and under the promotion of this main trend, defeated
The continuous development of power technology, the scale of power grid constantly expands, the voltage class of electric system constantly increases, and especially extra-high voltage is handed over
The molding and innovation of direct current mixing field of power transmission technology.
Currently, China has successfully had developed 1000kV exchange and ± 800kV direct current hybrid power system, promote China
Enter the new stage of UHV transmission.But while entering the new stage of UHV transmission, real-time monitoring electric power is also given
The operating status of system and the maintenance of power equipment increase difficulty.So how to be monitored in real time in transmission line of electricity operation
Its state is just particularly important.The state letter of transmission line of electricity wherein can be accurately extracted in higher and higher voltage class
Breath is even more the most important thing.
In the prior art, often through the voltage of voltage transformer monitoring ultra-high-tension power transmission line, with real-time detection power train
The operating status of system.However, being voltage of the substantive voltage transformer in monitoring ultra-high-tension power transmission line with transformer, exist very much
Problem, such as traditional electromagnetic type and capacitance type potential transformer, due to the reason of interpolation iron core, secondary side in use cannot
Short circuit will appear magnetic hysteresis and magnetic saturation in iron core, and then result in that the measurement linearity is low, static and dynamic true scope is small, wink
The problems such as state error characteristics are undesirable；In substation isolating-switch operating process, electromagnetic type and capacitance type mutual inductor are easy to draw
Send out failure.There is the stabilization of the limitation of crystal half-wave voltage, light source stability, optical device connection in electronic mutual inductor
The problems such as offset of property, optical transmission loss and intrinsic standoff ratio, a sensing arrangement and in terms of there are significant deficiency,
It is easy to cause serious measurement error.Have that transformer figure is big, involves great expense, maintenance and repair additionally, due to voltage transformer
The common faults such as costly, measurement is not flexible, big, the insulating requirements height of loss.Therefore, it is badly in need of a kind of completely new device, is abandoning voltage
On the basis of mutual inductor, voltage value when ultra-high-tension power transmission line operation, and then real-time monitoring ultra-high-tension power transmission line can be obtained
Operating status.
Summary of the invention
The object of the present invention is to provide a kind of bus voltage measurement dresses established in three-phase integrated GIS tank body closed end
It sets, on the basis of abandoning voltage transformer, by simple voltage measuring apparatus, obtains high pressure in gas insulated combined electrical equipment
Conductor is to the voltage value of outer tank body, and then accurate voltage value when determining ultra-high-tension power transmission line operation, realizes that real-time monitoring is high
The purpose of the operating status of pressure transmission line.
To achieve the above object, the present invention provides following schemes:
A kind of bus voltage measurement device established in three-phase integrated GIS tank body closed end, the bus voltage measurement dress
It sets including gas insulated combined electrical equipment, three identical measuring devices and voltage display；Wherein, the gas-insulated combination electricity
Device includes outer tank body and three identical high-pressure conductors with cylindrical structure；The outer tank body includes side surface and closed end；
One end of the measuring device is connect with the closed end；The voltage display is connect with the other end of the measuring device,
For obtaining high-pressure conductor to the voltage value of outer tank body.
Optionally, the measuring device includes: circular metal vane, resistance, cable and manograph；The round gold
Belonging to vane is a part cut down from the closed end, and before measuring voltage, the circular metal is passed
Sense piece pastes the incision in the closed end；Wherein, the diameter of the circular metal vane and the high-pressure conductor is straight
Diameter is equal, and the position of the incision is identical as the position that the high-pressure conductor is projected in the closed end；
One end of the resistance connects the circular metal vane, and the other end of the resistance connects the closed end,
And one end of the cable connects the resistance；
The manograph connects the other end of the cable, for obtaining resistive voltage value.
Optionally, the other end of the resistance connects the closed end, specifically includes: the other end of the resistance has with glutinous
The closed end of the circular metal vane connects.
Optionally, the voltage display is connect with the other end of the measuring device, external for obtaining high-pressure conductor
The voltage value of tank body, specifically includes: the voltage display is connect with the manograph, is used for according to the resistive voltage value,
High-pressure conductor is obtained to the voltage value of outer tank body.
Optionally, the Standard resistance range of the resistance is 0.1M Ω~200M Ω.
Optionally, the cable is coaxial cable.
Optionally, the circular metal vane is separated by insulation film and the closed end, for the circle that insulate
Shape metal sensor piece and the covering closed end.
Optionally, the insulation film is Kapton or other insulating materials.
Optionally, the gas insulated combined electrical equipment is cylindrical body, and is placed horizontally at the pallet apart from ground h meters of height
On.
Optionally, the measuring device further includes resistance shielding box；The resistance shielding box, is mounted on the closed end
On, make the resistance and the circular metal vane between the resistance shielding box and the closed end, with the external world
Isolation；The resistance shielding box, for shielding outside electromagnetic interference.
The specific embodiment provided according to the present invention, the invention discloses following technical effects:
A kind of bus voltage measurement device established in three-phase integrated GIS tank body closed end provided by the invention, the mother
Line voltage measurement device includes gas insulated combined electrical equipment, three identical measuring devices and voltage display；Wherein, the gas
Body insulation in combined electric appliance includes outer tank body and three identical high-pressure conductors with cylindrical structure；The outer tank body includes side table
Face and closed end；One end of the measuring device is connect with the closed end；The voltage display and the measuring device
Other end connection, for obtaining high-pressure conductor to the voltage value of outer tank body；Therefore, using it is provided by the invention it is a kind of foundation three
The mutually bus voltage measurement device of one GIS tank body closed end can obtain gas-insulated by simple voltage measuring apparatus
High-pressure conductor is to the voltage value of outer tank body in combined electrical apparatus, and then accurate voltage value when determining ultra-high-tension power transmission line operation,
Realize the purpose of the operating status of real-time monitoring ultra-high-tension power transmission line.
In addition, solving compared with prior art, the present invention having abandoned voltage transformer in real-time monitoring high voltage transmission line
When the operating status on road, using voltage transformer, in the presence of having, transformer figure is big, involves great expense, maintenance and repair expense
The problems such as height, not flexible, insulating requirements are high measurement.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is that the bus voltage measurement apparatus structure that the embodiment of the present invention is established in three-phase integrated GIS tank body closed end shows
It is intended to；
Fig. 2 is gas insulated combined electrical equipment of embodiment of the present invention structural schematic diagram；
Fig. 3 is the one of measuring device connection relationship diagram of the embodiment of the present invention；
Fig. 4 is that the bus voltage measurement device material object that the embodiment of the present invention is established in three-phase integrated GIS tank body closed end connects
Connect relation schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of bus voltage measurement dresses established in three-phase integrated GIS tank body closed end
It sets, on the basis of abandoning voltage transformer, by simple measuring device, obtains high-pressure conductor in gas insulated combined electrical equipment
To the voltage value of outer tank body, and then high-precision voltage value when obtaining ultra-high-tension power transmission line operation, realize real-time monitoring high pressure
The purpose of the operating status of transmission line of electricity.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Fig. 1 is that the bus voltage measurement apparatus structure that the embodiment of the present invention is established in three-phase integrated GIS tank body closed end shows
It is intended to, as shown in Figure 1, the bus voltage measurement device includes 101, three identical measuring devices of gas insulated combined electrical equipment
102 and voltage display 103.Wherein, one end of the measuring device 102 identical with three respectively of voltage display 103 is connect, and is used
In obtaining high-pressure conductor to the voltage value of outer tank body, the other end of three identical measuring devices 102 combines electricity with gas-insulated
Device 101 connects.
Fig. 2 is gas insulated combined electrical equipment of embodiment of the present invention structural schematic diagram, as shown in Fig. 2, gas-insulated combination electricity
Device includes outer tank body 201 and three identical high-pressure conductors 202 with cylindrical structure；Outer tank body 201 includes side surface and envelope
Closed end；Outer tank body 201 is the metal shell of gas insulated combined electrical equipment 101；Three identical high pressures with cylindrical structure are led
Body 202 is all located at the inside of gas insulated combined electrical equipment 101；Three identical measuring devices 102 are all mounted on same
On closed end.
Illustrate herein, a kind of bus voltage measurement dress established in three-phase integrated GIS tank body closed end provided by the invention
It sets including three identical measuring devices, since three measuring devices are identical, in order to succinctly describe, the embodiment of the present invention
Only describe the component part of a measuring device.
Fig. 3 is the one of measuring device connection relationship diagram of the embodiment of the present invention, as shown in figure 3, measuring device 102
It include: circular metal vane 301, resistance 302, cable 303 and manograph 304；Wherein, circular metal vane 301 is
The a part cut down from closed end, and before measuring voltage, circular metal vane 301 is pasted in closed end
Incision；Wherein, the diameter of circular metal vane 301 is equal with the diameter of high-pressure conductor 202, the position of incision and height
The position that pressure conductor 202 is projected in closed end is identical；
One end of resistance 302 connects circular metal vane 301, and the other end of resistance 302 connects closed end, and cable
303 one end connects resistance 302；
The other end of 304 connecting cable 303 of manograph, for obtaining resistive voltage value.
Wherein, the other end of resistance 302 connects closed end, specifically includes: the other end of resistance 302 has circular metal with glutinous
The closed end of vane 301 connects.
Voltage display 103 is connect with manograph 304, for obtaining high-pressure conductor to outer tank body according to resistive voltage value
Voltage value.
The Standard resistance range of resistance 302 is 0.1M Ω~200M Ω.
Cable 303 is coaxial cable.
Circular metal vane 301 is separated by insulation film and closed end, for circular metal vane and the envelope of insulating
Closed end (outer tank body).
Insulation film is Kapton or other insulating materials.
Gas insulated combined electrical equipment 101 is cylindrical body, and is placed horizontally on the pallet apart from ground h meters of height, and connect
Ground.
Measuring device 102 further includes resistance shielding box 305 (not shown in fig. 3)；Resistance shielding box 305 is mounted on outer
The closed end of tank body makes resistance 302 and circular metal vane 301 be located at the closed end of resistance shielding box 305 and outer tank body 201
Between, it is isolated from the outside world；The resistance shielding box 305, for shielding outside electromagnetic interference.
Fig. 4 is that the bus voltage measurement device material object that the embodiment of the present invention is established in three-phase integrated GIS tank body closed end connects
Relation schematic diagram is connect, as shown in figure 4, a kind of bus electricity established in three-phase integrated GIS tank body closed end provided in this embodiment
Pressure measuring device, the bus voltage measurement device include gas insulated combined electrical equipment 101, three identical 102 and of measuring device
Voltage display 103；Wherein, it includes outer tank body 201 and high-pressure conductor 202 that the gas-insulated, which combines 101 electric appliances,；Outer tank body
201 include closed end and side surface；Three measuring devices 101 are arranged on same closed end according to certain position；Voltage is shown
Device 103 is connect with the manograph 304 in three measuring devices 102 respectively, for obtaining high-pressure conductor to the voltage value of outer tank body；
Therefore, using a kind of bus voltage measurement device established in three-phase integrated GIS tank body closed end provided by the invention, Neng Goutong
It crosses simple voltage measuring apparatus, obtains high-pressure conductor in gas insulated combined electrical equipment to the voltage value of outer tank body, and then high-precision
The voltage value of degree obtained when ultra-high-tension power transmission line is run, realizes the purpose of the operating status of real-time monitoring ultra-high-tension power transmission line.
In addition, the device provided by the invention, has abandoned voltage transformer, solve in real-time monitoring ultra-high-tension power transmission line
Operating status when, use voltage transformer, and exist have transformer figure is big, involve great expense, maintenance and repair is costly,
Measure the problems such as not flexible, insulating requirements are high.
And voltage measuring apparatus provided in this embodiment, it is small in size, it is at low cost, will not because isolator operation occur therefore
Hinder, and the bus voltage measurement device is mounted on to the closed end of gas insulated combined electrical equipment, is conducive to the bus voltage measurement
Installation, detection and the maintenance of device, the more high-precision voltage value obtained when ultra-high-tension power transmission line is run.
In order to preferably enable the above objects, features and advantages of the present invention more obvious and easy to understand, below by substep
The rapid manufacturing process to disclose voltage measuring apparatus, specially
Before measuring voltage first, three circular metal vanes 301 are cut down in the closed end of outer tank body 201；Its
The diameter of middle circular metal vane 301 and the diameter of high-pressure conductor 202 are equal, the incision position of closed end and high-pressure conductor
202 be projected in closed end position it is identical, i.e. the corresponding high-pressure conductor 202 of circular metal vane 301, and cleavage
Set fixation.And Kapton is coated in incision, circular metal vane 301 is pasted in incision；It is applied in incision
Upper Kapton, for preventing circular metal vane and outer tank body to be powered.
Secondly, one end of resistance 302 is connected circular metal vane 301, other end connection has the closing of incision
End, and resistance 302 is connected with 303 one end of cable.
Furthermore by the other end of 304 connecting cable 303 of manograph, voltage display 103 is separately connected three identical surveys
Depressor 304.
After gas insulated combined electrical equipment 101 is powered, three manographs 304 obtain the voltage value of three resistance 302 respectively
And this three voltage values are sent to voltage display 103；Outlet is calculated and be shown according to three voltage values in voltage display 103
Voltage value of the high-pressure conductor to outer tank body in body insulation in combined electric appliance.
High-pressure conductor in gas insulated combined electrical equipment can be obtained in order to verify the voltage measuring apparatus of offer of the invention
To the voltage value of outer tank body, and then voltage value on high voltage transmission line is accurately obtained, current following embodiment proves.
Embodiment one
Due to being three-phase conductor, three identical high-pressure conductors apply the voltage of 220kV respectively, and 120 degree of phase mutual deviation；It is high
Pressure conductor diameter is 100mm, length 300mm；Outer tank outer diameter 910mm, interior diameter 900mm, length 350mm；Closed end
Thickness 5mm, radius are equal to high-pressure conductor diameter 100mm；Wherein, the axial distance between 1 high-pressure conductor of table and closed end is
Difference measures resistance corresponding voltage value when 50mm.Axial distance difference between the different high-pressure conductors of table 2 and closed end measures electricity
Hinder corresponding no-load voltage ratio coefficient.
Difference measures resistance corresponding voltage value when axial distance between 1 high-pressure conductor of table and closed end is 50mm
The corresponding no-load voltage ratio coefficient of axial distance difference measurement resistance between the different high-pressure conductors of table 2 and closed end
First group of data in selection of embodiment of the present invention table 1 come verify measuring device provided by the invention can be accurate
High-pressure conductor is obtained to the voltage value of outer tank body, and then the voltage value accurately obtained on high voltage transmission line (can also choose other
Group data), i.e., the axial distance between selection high-pressure conductor and closed end is 50mm, and resistance is 10 Ω, and passes through 1 and the table of tabling look-up
2, determine that resistive voltage is 0.9mV, no-load voltage ratio coefficient is 244.55, then the voltage value that high-pressure conductor can be calculated is about
220.098KV, being approximately equal to high-pressure conductor is actually applied voltage 220kV, and therefore, the embodiment of the present invention demonstrates the present invention and mentions
A kind of foundation supplied can accurately obtain high voltage power transmission in the bus voltage measurement device of three-phase integrated GIS tank body closed end
Voltage value when route is run realizes the purpose of the operating status of real-time monitoring ultra-high-tension power transmission line.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (7)
1. a kind of bus voltage measurement device established in three-phase integrated GIS tank body closed end, which is characterized in that the bus electricity
Pressure measuring device includes gas insulated combined electrical equipment, three identical measuring devices and voltage display；Wherein, the gas is exhausted
Edge combined electrical apparatus includes outer tank body and three identical high-pressure conductors with cylindrical structure；The outer tank body include side surface and
Closed end；One end of three identical measuring devices is connect with the closed end；The voltage display and three identical surveys
The other end connection for measuring device, for obtaining high-pressure conductor to the voltage value of outer tank body；
Three identical measuring devices include: circular metal vane, resistance, cable and manograph；The circular metal passes
Feeling piece is a part cut down from the closed end, and before measuring voltage, by the circular metal vane
Paste the incision in the closed end；Wherein, the diameter phase of the diameter of the circular metal vane and the high-pressure conductor
Deng the position of the incision is identical as the position that the high-pressure conductor is projected in the closed end；
One end of the resistance connects the circular metal vane, and the other end of the resistance has the circular metal to pass with glutinous
Feel the closed end connection of piece, and one end of the cable connects the resistance；
The manograph connects the other end of the cable, for obtaining resistive voltage value；
The other end of voltage display measuring device identical with three is connect, for obtaining high-pressure conductor to outer tank body
Voltage value specifically includes: the voltage display is connect with the manograph, for according to the resistive voltage value and no-load voltage ratio system
Number obtains high-pressure conductor to the voltage value of outer tank body；Wherein, the axial distance difference between different high-pressure conductors and closed end is surveyed
It is as shown in the table to measure the corresponding no-load voltage ratio coefficient of resistance；
2. bus voltage measurement device according to claim 1, which is characterized in that the Standard resistance range of the resistance is 0.1M
Ω~200M Ω.
3. bus voltage measurement device according to claim 1, which is characterized in that the cable is coaxial cable.
4. bus voltage measurement device according to claim 1, which is characterized in that the circular metal vane passes through exhausted
Edge film is separated with the closed end, for the circular metal vane and the covering closed end of insulating.
5. bus voltage measurement device according to claim 4, which is characterized in that the insulation film is that polyimides is thin
Film.
6. bus voltage measurement device according to claim 1, which is characterized in that the gas insulated combined electrical equipment is circle
Cylinder, and be placed horizontally on the pallet apart from ground h meters of height.
7. bus voltage measurement device according to claim 1, which is characterized in that three identical measuring devices further include
Resistance shielding box；The resistance shielding box, is mounted on the closed end, makes the resistance and circular metal vane position
Between the resistance shielding box and the closed end, it is isolated from the outside world；The resistance shielding box, for shielding external electromagnetic
Interference.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710135921.2A CN106885934B (en) | 2017-03-09 | 2017-03-09 | A kind of bus voltage measurement device established in three-phase integrated GIS tank body closed end |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710135921.2A CN106885934B (en) | 2017-03-09 | 2017-03-09 | A kind of bus voltage measurement device established in three-phase integrated GIS tank body closed end |
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| CN106885934A CN106885934A (en) | 2017-06-23 |
| CN106885934B true CN106885934B (en) | 2019-10-01 |
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| CN201710135921.2A Expired - Fee Related CN106885934B (en) | 2017-03-09 | 2017-03-09 | A kind of bus voltage measurement device established in three-phase integrated GIS tank body closed end |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593997B (en) * | 2018-06-04 | 2019-12-06 | 华北电力大学 | Voltage measuring device and method suitable for power transmission line |
| CN110542777B (en) * | 2019-09-29 | 2020-08-14 | 华北电力大学 | Three-phase integrated GIS independent bus voltage measuring device |
| CN110596553A (en) * | 2019-10-10 | 2019-12-20 | 华北电力大学 | Transformer on-line monitoring measuring device |
| CN111089999B (en) * | 2020-02-10 | 2021-04-13 | 华北电力大学 | Parallel AC high-voltage line voltage measuring device and method |
| CN111190086A (en) * | 2020-03-11 | 2020-05-22 | 华北电力大学 | GIS partial discharge on-line monitoring device |
| CN112904253B (en) * | 2021-01-15 | 2021-11-23 | 华北电力大学 | Electronic measuring device with temperature self-calibration function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2578839Y (en) * | 2002-09-22 | 2003-10-08 | 西安高压电器研究所 | GIS quick instantaneous voltage measuring sensor |
| JP2006267002A (en) * | 2005-03-25 | 2006-10-05 | Tokyo Electric Power Co Inc:The | Insulation deterioration position locating device and method thereof |
| WO2014087469A1 (en) * | 2012-12-03 | 2014-06-12 | 三菱電機株式会社 | Voltage detection device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2613764Y (en) * | 2003-04-23 | 2004-04-28 | 高丹丘 | Voltage sensor for measuring bus voltage of closed composite electric appliances |
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2017
- 2017-03-09 CN CN201710135921.2A patent/CN106885934B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2578839Y (en) * | 2002-09-22 | 2003-10-08 | 西安高压电器研究所 | GIS quick instantaneous voltage measuring sensor |
| JP2006267002A (en) * | 2005-03-25 | 2006-10-05 | Tokyo Electric Power Co Inc:The | Insulation deterioration position locating device and method thereof |
| WO2014087469A1 (en) * | 2012-12-03 | 2014-06-12 | 三菱電機株式会社 | Voltage detection device |
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