CN106680561A - Dual-gas chamber direct-current voltage divider - Google Patents
Dual-gas chamber direct-current voltage divider Download PDFInfo
- Publication number
- CN106680561A CN106680561A CN201611026203.3A CN201611026203A CN106680561A CN 106680561 A CN106680561 A CN 106680561A CN 201611026203 A CN201611026203 A CN 201611026203A CN 106680561 A CN106680561 A CN 106680561A
- Authority
- CN
- China
- Prior art keywords
- arm housing
- low
- voltage
- voltage arm
- pressure arm
- 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.)
- Granted
Links
- 239000004020 conductor Substances 0.000 claims abstract description 48
- 238000009413 insulation Methods 0.000 claims description 25
- 238000009530 blood pressure measurement Methods 0.000 claims description 20
- 238000012360 testing method Methods 0.000 claims description 13
- 239000011810 insulating material Substances 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 3
- 239000003566 sealing material Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000003071 parasitic effect Effects 0.000 abstract 1
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/04—Voltage dividers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The present invention provides a dual-gas chamber direct-current voltage divider. The dual-gas chamber direct-current voltage divider comprises a high-voltage arm and a low-voltage arm connected in series through intermediate connecting conductors; the high-voltage arm is mounted in a cylindrical high-voltage arm housing having an insulating section; the upper end of the high-voltage arm is led out from the upper side of the insulating section; the intermediate connecting conductors extend out from the lower side of the insulating section; the lower end of the high-voltage arm housing is connected with a low-voltage arm housing which is used for sealing the low-voltage arm so as to isolate the low-voltage arm from the outside environment; two ends of the low-voltage arm are connected with voltage detecting conductors; the voltage detecting conductors extend out from the low-voltage arm housing; the intermediate connecting conductors are in insulating fit with the high-voltage arm housing and the low-voltage arm housing; and the voltage detecting conductors are in insulating fit the low-voltage arm housing. With the direct-current voltage divider of the invention adopted generation of parasitic resistance in parallel connection with the high-voltage arm can be avoided, and the accuracy of detection can be improved.
Description
Technical field
The present invention relates to a kind of pair of air chamber divider.
Background technology
Divider is mainly resistance-capacitance type divider, the main high-voltage arm and low-voltage arm for including concatenation, high-voltage arm
It is connected with equipment away from one end of low-voltage arm, one end away from high-voltage arm of low-voltage arm is grounded, will by high-voltage arm and low-voltage arm
Equipment voltage carries out partial pressure, then the voltage in low-voltage arm is detected by testing equipment, can calculate the electricity of equipment
Pressure, reduces the requirement of testing equipment, and detection process is also safer.
The high-voltage arm of traditional divider be arranged on tubular high pressure arm housing in, by tubular high pressure arm housing,
Lower two ends outlet, tubular high-voltage arm housing central section has insulating segment, and high-voltage arm is stretched out in high-voltage arm lower end by middle connection conductor
Outside housing and connect low-voltage arm, the two ends of low-voltage arm are also respectively connected with the pressure measurement conductor electrically connected with testing equipment.In reality
In detection process, it is frequently found to detect exist necessarily between the equipment voltage and physical device voltage that calculate through testing equipment
Error, the presence of this error causes very big puzzlement to testing staff, and it is all the time difficult for how eliminating this error
Topic.
The content of the invention
It is an object of the invention to provide a kind of accurate pair of air chamber dividers of detection.
Double air chamber dividers of the present invention include the high-voltage arm and low-voltage arm by middle connection conductor concatenation, high pressure
Arm is arranged in the tubular high pressure arm housing with insulating segment, and the upper end of high-voltage arm is from the upside outlet of insulating segment, centre connection
Conductor from the downside outlet of insulating segment, the lower end of the high pressure arm housing be connected with for by low-voltage arm and external environment seal every
From low pressure arm housing, the two ends of low-voltage arm are connected with pressure measurement conductor, and pressure measurement conductor stretches out low pressure arm housing, centre connection conductor
With high pressure arm housing and low pressure arm housing Insulation Coordination, pressure measurement conductor and low pressure arm housing Insulation Coordination.
Connection conductor is connect by the insulation being arranged between high-voltage arm housing cavity and low-voltage arm housing cavity in the middle of described
Drum is dielectrically separated from high pressure arm housing, low pressure arm housing.
The high pressure arm housing is connected by the adpting flange of its lower end with the upper side wall of low pressure arm housing, low pressure arm housing
Upper side wall be provided with the through wires hole passed through for middle connection conductor, the insulation joint disk seal blocks up the through wires hole.
The inner chamber of the high pressure arm housing and the bore seal of low pressure arm housing are isolated and full of dry inert gas.
The low pressure arm housing realizes the Insulation Coordination with pressure measurement conductor, institute by the insulation outlet structure being disposed thereon
Insulation outlet structure is stated including wire hole and the insulating sealing materials being encapsulated in wire hole, the pressure measurement conductor includes encapsulation
Two binding posts in insulating materials and two binding posts are connected to respectively the wire at low-voltage arm two ends, binding post
Outer end stretch out low pressure arm housing.
The binding post is jack contact, the outer end of the wire hole be provided with for testing equipment with contact pin
The attachment structure of the plug connection of contact.
The wire hole is horizontally disposed with.
One end away from middle connection conductor of the low-voltage arm is connected with low-voltage arm housing conductive.
The low-voltage arm of double air chamber dividers of the present invention is sealed off by low pressure arm housing with external environment, middle
Connection conductor and high pressure arm housing and low pressure arm housing Insulation Coordination, pressure measurement conductor and low pressure arm housing Insulation Coordination, so keep away
Exempted from the moisture condensation in ambient atmosphere cause the high pressure arm housing upper end and low-voltage arm electrically connected with high-voltage arm front end it
Between produce the dead resistance in parallel with high-voltage arm and affect the detection to low-voltage arm partial pressure, it also avoid in the insulation of high pressure arm housing
When the outside of section is covered with rainwater or spot, produces the dead resistance in parallel with high-voltage arm and affect the detection to low-voltage arm partial pressure,
Improve the levels of precision of detection.
Description of the drawings
Fig. 1 is the principle schematic of existing divider；
Fig. 2 is the structural representation of the embodiment of the divider of the present invention；
Fig. 3 is the principle schematic of the divider of the present invention.
Specific embodiment
In order to preferably to the present invention divider be described, existing divider is used first below
Principle is illustrated.
By carrying out long-term research and substantial amounts of test discovery to existing divider, in the outer of high pressure arm housing
Side is present containing more moisture in spot and spot, or in rainwater weather, or the moisture condensation in ambient atmosphere etc.
In the case of, the insulating segment of high pressure arm housing can not play good insulating effect.As shown in figure 1, divider outside, specifically
For the isolation material surface of V1 to B, dead resistance Rj in parallel with high-voltage arm can be produced, Rj is incorporated to divider by B points
High-voltage arm 2, divider no-load voltage ratio just byIt is changed intoThus directly affect high-voltage arm
Partial pressure, then also just directly result in the testing result of the testing equipment for being connected to low-voltage arm two ends.
The improvement that such problem that the present invention exactly exists for existing divider is carried out so that divider
The outside dead resistance that no-load voltage ratio is not produced by rainwater, spot and air, or the shadow of the dead resistance of the micro- water-setting dew generation of air
Ring, solve for a long time pass through divider testing equipment voltage when, the inaccurate problem of testing result.
The embodiment of double air chamber dividers of the present invention, as Figure 2-3, goes here and there including conductor 16 is connected by centre
The high-voltage arm 2 for connecing and low-voltage arm 4, high-voltage arm 2 is arranged in the inner chamber 1 of high pressure arm housing, and centre connection conductor is from high-voltage arm shell
Stretch out the lower end of body.High pressure arm housing is tubular shell, and upper/lower terminal is metal material, and centre has insulating segment 12.High-voltage arm
The 2 upper end outlets for passing through high pressure arm housing simultaneously connect equipment by line bank V1.The lower ending opening of high pressure arm housing and the company of being provided with
Acting flange, high pressure arm housing is connected with low pressure arm housing 3 by adpting flange, and low pressure arm housing 3 is metal material, and by low pressure
Arm 4 and extraneous link seal isolation.The two ends of low-voltage arm 4 are also associated with pressure measurement conductor, and pressure measurement conductor stretches out low pressure arm housing 3 simultaneously
For being connected with pressure instrumentataion.Centre connects conductor 16 during low pressure arm housing is protruded into from high pressure arm housing, with
High pressure arm housing and low pressure arm housing are dielectrically separated from, and pressure measurement conductor insulate when low pressure arm housing is stretched out with low pressure arm housing
Coordinate.
In the present embodiment, high pressure arm housing is connected by the adpting flange of its lower end with the upper side wall of low pressure arm housing 3, low
The upper side wall of pressure arm housing 3 is provided with the through wires hole passed through for middle connection conductor 16, also exists on the upper side wall of low pressure arm housing 3
The insulation joint disk 10 that through wires hole is blocked is installed on the downside of the through wires hole.Centre connection conductor 16 passes through insulation joint disk 10
Enter low pressure arm housing from high pressure arm housing, realize and be dielectrically separated from high pressure arm housing and low pressure arm housing, meanwhile, lead to
Cross upper side wall and insulation joint disk realizes the seal isolation of the inner chamber by the inner chamber 1 of high pressure arm housing and low pressure arm housing 3.Such as
This, high-voltage arm and low-voltage arm are arranged in independent sealed internal chamber, the divider of the present embodiment also in high-voltage arm inner chamber and
Dry inert gas is filled with low-voltage arm inner chamber, improve high-voltage arm, low-voltage arm and external environment is dielectrically separated from effect,
Ensure the stability of divider no-load voltage ratio.
In the present embodiment, low pressure arm housing 3 realizes it with pressure measurement conductor by the insulation outlet structure being disposed thereon
Insulation Coordination.Specifically, insulation outlet structure includes wire hole 11 and the insulating materials 5 being encapsulated in wire hole 11, outlet
Hole horizontal arranges and pressure measurement conductor level is drawn, convenient detection, certainly, in other embodiments, the setting position of wire hole
Putting can be arranged according to actual needs with direction, not do particular requirement.Pressure measurement conductor includes that two in packaging insulating material 5 connect
Line terminals 14 and two binding posts 14 are connected to respectively low-voltage arm 4 two ends wire 15, the outer end of binding post 14
Stretch out low pressure arm housing.The lower end of low-voltage arm 4 is connected with low-voltage arm housing conductive, and is finally grounded.Certainly, in other embodiment party
In formula, low-voltage arm can be grounded by special lead, and the technological improvement of the present invention is not related to herein, no longer be arranged one by one
Lift.
In the present embodiment, for convenience pressure instrumentataion and low-voltage arm 4 are conductively connected, and binding post 14 adopts jack contact
Part, using jack contact primarily to can directly using with the contact pin contacting piece coordinated with the jack contact inserting
Plug realizing being conductively connected for pressure instrumentataion and low-voltage arm so that detection process is simpler.As shown in figure 1, wire hole
Outer end be provided with for the bolted connecting hole of plug casing 7, the hole of plug casing 7 and wire hole is along passing through sealing ring 13
It is packaged with and is contacted with the contact pin of jack contact inserting by insulating sealing materials 8 and embedding structure 9 in sealing, plug casing 7
Part.Meanwhile, so also more can guarantee that pressure measurement conductor will not be with the moisture condensation in external environment or contacting rain water, it is ensured that good
Be dielectrically separated from.
The principle of the divider of the present invention is as shown in Fig. 2 due to middle connection conductor and high pressure arm housing, low-voltage arm
Housing is dielectrically separated from, and pressure measurement conductor is also dielectrically separated from low pressure arm housing, and in low pressure arm housing is sealed in low-voltage arm, this
Even if sample contains more moisture in there is spot and spot on the outside of high pressure arm housing, or in rainwater weather, Huo Zhe
When moisture condensation in ambient atmosphere, dead resistance Rj in parallel with high-voltage arm will not be also produced, it is ensured that high-voltage arm,
The stability of low-voltage arm partial pressure, also ensures that the accuracy of pressure instrumentataion testing result.
Present invention also offers a kind of embodiment two of divider, in embodiment two, high pressure arm housing and low pressure
Not stifled by insulation joint disk seal between arm housing, i.e., the inner chamber of high pressure arm housing is mutually interconnected with the inner chamber of low pressure arm housing
It is logical, being dielectrically separated from by internal gas realization and high pressure arm housing and low pressure arm housing between middle conductor.
Present invention also offers a kind of embodiment three of divider, in embodiment three, low pressure arm housing can be
The tubular structure of upper end open, high pressure arm housing is by the adpting flange at its lower ending opening and low pressure arm housing upper end open pair
Connect, insulating barrier is also folded between the lower end of high pressure arm housing and the upper end of low pressure arm housing, centre connection conductor is rushed across absolutely
Edge dividing plate simultaneously is realized being dielectrically separated from high pressure arm housing and low pressure arm housing by insulating barrier.
Claims (8)
1. a kind of pair of air chamber divider, including by middle high-voltage arm and the low-voltage arm that conductor is concatenated, high-voltage arm peace are connected
It is mounted in the tubular high pressure arm housing with insulating segment, the upper end of high-voltage arm is from the upside outlet of insulating segment, centre connection conductor
From the downside outlet of insulating segment, it is characterized in that, the lower end of the high pressure arm housing is connected with for by low-voltage arm and external environment
The low pressure arm housing of seal isolation, the two ends of low-voltage arm are connected with pressure measurement conductor, and pressure measurement conductor stretches out low pressure arm housing, and centre connects
Connect conductor and high pressure arm housing and low pressure arm housing Insulation Coordination, pressure measurement conductor and low pressure arm housing Insulation Coordination.
2. according to claim 1 pair of air chamber divider, is characterized in that, the middle connection conductor is by being arranged on
Insulation joint disk between high-voltage arm housing cavity and low-voltage arm housing cavity and high pressure arm housing, the insulation of low pressure arm housing every
From.
3. according to claim 2 pair of air chamber divider, is characterized in that, the high pressure arm housing is by its lower end
Adpting flange is connected with the upper side wall of low pressure arm housing, and the upper side wall of low pressure arm housing is provided with what is passed through for middle connection conductor
Through wires hole, the insulation joint disk seal blocks up the through wires hole.
4. according to claim 2 pair of air chamber divider, is characterized in that, the inner chamber and low pressure of the high pressure arm housing
The bore seal of arm housing is isolated and is each filled with dry inert gas inside it.
5. the double air chamber dividers according to claim 1-4 any one, is characterized in that, the low pressure arm housing leads to
The Insulation Coordination of the insulation outlet structure realization and pressure measurement conductor being disposed thereon is crossed, the insulation outlet structure includes wire hole
And the insulating sealing materials being encapsulated in wire hole, the pressure measurement conductor include packaging insulating material in two binding posts
And two binding posts are connected to respectively the wire at low-voltage arm two ends, low pressure arm housing is stretched out in the outer end of binding post.
6. according to claim 5 pair of air chamber divider, is characterized in that, the binding post is jack contact,
The outer end of the wire hole is provided with the attachment structure being connected for the plug with contact pin contacting piece with testing equipment.
7. according to claim 5 pair of air chamber divider, is characterized in that, the wire hole is horizontally disposed with.
8. the double air chamber dividers according to claim 1-4 any one, is characterized in that, low-voltage arm away from centre
One end of connection conductor is connected with low-voltage arm housing conductive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611026203.3A CN106680561B (en) | 2016-11-18 | 2016-11-18 | Double-air-chamber direct-current voltage divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611026203.3A CN106680561B (en) | 2016-11-18 | 2016-11-18 | Double-air-chamber direct-current voltage divider |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106680561A true CN106680561A (en) | 2017-05-17 |
| CN106680561B CN106680561B (en) | 2023-08-15 |
Family
ID=58866726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611026203.3A Active CN106680561B (en) | 2016-11-18 | 2016-11-18 | Double-air-chamber direct-current voltage divider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106680561B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110850139A (en) * | 2018-08-21 | 2020-02-28 | 西安西电高压开关有限责任公司 | Voltage measuring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB607921A (en) * | 1946-03-09 | 1948-09-07 | Rudolph Conrad De Holzer | Airtight inductor and transformer |
| JPH08219917A (en) * | 1995-02-08 | 1996-08-30 | Fuji Electric Co Ltd | Lead-out structure at differential pressure detecting part in differential pressure detector |
| CN2741158Y (en) * | 2004-09-23 | 2005-11-16 | 中电电气集团有限公司 | Low-voltage outlet device of underground transformer |
| CN101183121A (en) * | 2007-12-17 | 2008-05-21 | 国网武汉高压研究院 | Extra-high voltage reference capacitor |
| CN104360141A (en) * | 2014-11-14 | 2015-02-18 | 国家电网公司 | Stand-off ratio voltage coefficient detection method based on separable direct current voltage divider |
| CN204228774U (en) * | 2014-11-14 | 2015-03-25 | 国家电网公司 | A kind of 1000kV DC partial voltage for DC voltage addition test compares standard set-up |
| CN104655896A (en) * | 2015-02-13 | 2015-05-27 | 咸阳永泰电力电子科技有限公司 | Detachable AC/DC voltage divider |
| RU166007U1 (en) * | 2016-04-13 | 2016-11-10 | федеральное государственное бюджетное образовательное учреждение высшего образования "Ивановский государственный энергетический университет имени В.И. Ленина" (ИГЭУ) | HIGH VOLTAGE MEASURING VOLTAGE CONVERTER |
| CN206281888U (en) * | 2016-11-18 | 2017-06-27 | 国家电网公司 | The divider of insulator surface dead resistance under the conditions of a kind of blocking filth |
-
2016
- 2016-11-18 CN CN201611026203.3A patent/CN106680561B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB607921A (en) * | 1946-03-09 | 1948-09-07 | Rudolph Conrad De Holzer | Airtight inductor and transformer |
| JPH08219917A (en) * | 1995-02-08 | 1996-08-30 | Fuji Electric Co Ltd | Lead-out structure at differential pressure detecting part in differential pressure detector |
| CN2741158Y (en) * | 2004-09-23 | 2005-11-16 | 中电电气集团有限公司 | Low-voltage outlet device of underground transformer |
| CN101183121A (en) * | 2007-12-17 | 2008-05-21 | 国网武汉高压研究院 | Extra-high voltage reference capacitor |
| CN104360141A (en) * | 2014-11-14 | 2015-02-18 | 国家电网公司 | Stand-off ratio voltage coefficient detection method based on separable direct current voltage divider |
| CN204228774U (en) * | 2014-11-14 | 2015-03-25 | 国家电网公司 | A kind of 1000kV DC partial voltage for DC voltage addition test compares standard set-up |
| CN104655896A (en) * | 2015-02-13 | 2015-05-27 | 咸阳永泰电力电子科技有限公司 | Detachable AC/DC voltage divider |
| RU166007U1 (en) * | 2016-04-13 | 2016-11-10 | федеральное государственное бюджетное образовательное учреждение высшего образования "Ивановский государственный энергетический университет имени В.И. Ленина" (ИГЭУ) | HIGH VOLTAGE MEASURING VOLTAGE CONVERTER |
| CN206281888U (en) * | 2016-11-18 | 2017-06-27 | 国家电网公司 | The divider of insulator surface dead resistance under the conditions of a kind of blocking filth |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110850139A (en) * | 2018-08-21 | 2020-02-28 | 西安西电高压开关有限责任公司 | Voltage measuring device |
| CN110850139B (en) * | 2018-08-21 | 2022-02-01 | 西安西电高压开关有限责任公司 | Voltage measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106680561B (en) | 2023-08-15 |
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