CN106771464A - A kind of can type capacitor voltage mutual inductor for high pressure GIS - Google Patents
A kind of can type capacitor voltage mutual inductor for high pressure GIS Download PDFInfo
- Publication number
- CN106771464A CN106771464A CN201611254901.9A CN201611254901A CN106771464A CN 106771464 A CN106771464 A CN 106771464A CN 201611254901 A CN201611254901 A CN 201611254901A CN 106771464 A CN106771464 A CN 106771464A
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- Prior art keywords
- tank
- sealed shell
- equipotential
- metal
- pitman
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- 239000003990 capacitor Substances 0.000 title claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims abstract description 38
- 239000002184 metal Substances 0.000 claims abstract description 38
- 239000004593 Epoxy Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000009413 insulation Methods 0.000 abstract description 8
- 230000006641 stabilisation Effects 0.000 abstract description 5
- 238000011105 stabilization Methods 0.000 abstract description 5
- 230000005350 ferromagnetic resonance Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 235000015927 pasta Nutrition 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 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
- G01R15/06—Voltage dividers having reactive components, e.g. capacitive transformer
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The present invention discloses a kind of can type capacitor voltage mutual inductor for high pressure GIS, including sealed shell of tank, high-field electrode, middle piezoelectricity pole, outlet casing tube, electromagnetic unit, insulated support, insulating part, bus, two equipotential metal pitmans and metal fixing plate.Two equipotentials metal pitman is respectively the first equipotential metal pitman and the second equipotential metal pitman.Simple structure of the present invention, low cost, stable insulation improves the security reliability of power network；Capacitive divider is located at tank interior, do not influenceed by extraneous approach effect, the optional scope of rated capacitance of capacitive divider is big, be not in the phenomenon of ferromagnetic resonance in electric online operation, do not influenceed by kindred effect, also error characteristics are not influenceed by filthy and relative humidity, error characteristics stabilization improves the accuracy of high-voltage fence metering.
Description
Technical field
The present invention relates to a kind of voltage transformer, more particularly to a kind of can type capacitor voltage mutual inductance for high pressure GIS
Device.
Background technology
Gas-insulating and fully-enclosed combined electrical apparatus (Gas Insulated Switchgear, GIS) includes breaker, keeps apart
Pass, earthed switch, transformer, arrester, bus and outlet terminal etc., using excellent lithium of insulating properties and arc extinction performance
Be sealed in all of component of high voltage electrical apparatus in grounded metal cylinder as insulation and arc-extinguishing medium by sulphur (SF6) gas.At present,
500KV and following voltage class GIS voltage transformers are substantially electromagnetic type structure voltage transformer (TV), its maximum it is excellent
Point is error characteristics stabilization.But, with the raising of voltage class, electromagnetic type knot when 500KV aboves GIS uses TV
Than larger, insulating properties are difficult to ensure that the manufacture difficulty of structure, and complex structure, high cost.
The content of the invention
It is an object of the invention to by a kind of can type capacitor voltage mutual inductor for high pressure GIS come more than solving
The problem that background section is mentioned.
It is that, up to this purpose, the present invention uses following technical scheme：
A kind of can type capacitor voltage mutual inductor for high pressure GIS, it includes sealed shell of tank, high-field electrode, middle piezoelectricity
Pole, outlet casing tube, electromagnetic unit, insulated support, insulating part, bus, two equipotential metal pitmans and metal are fixed
Plate；Two equipotentials metal pitman is respectively the first equipotential metal pitman and the second equipotential metal pitman；
The outlet casing tube is located at one end of the first equipotential metal pitman, outside the sealed shell of tank；Described
First-class noble potential metal pitman and the second equipotential metal pitman are fixed on the sealed shell of tank by the insulated support
Upper and lower both sides；The insulating part is fixed on the sealed shell of tank center of inside position, and the high-field electrode is fixed on the insulation
On part, it is enclosed within outside the bus；The high-field electrode is connected with the bus by the second equipotential metal pitman；Institute
Middle piezoelectricity pole is stated installed in the sealed shell of tank inwall, is fixed by insulated support；Between the high-field electrode and middle piezoelectricity pole
High voltage arm capacitor is formed, pressure arm electric capacity, high voltage arm capacitor and middle pressure arm electric capacity structure in being formed between middle piezoelectricity pole and sealed shell of tank
Into capacitive divider；The sealed shell of tank outside installs the metal fixing plate additional；The electromagnetic unit is arranged on and carries outlet
On the sealed shell of tank outer wall of sleeve pipe.
Especially, it is embedded with spring inside the insulated support；The high-field electrode is cylindrical structural.
Especially, the outlet casing tube uses epoxy glass fiber winding pipe.
Can type capacitor voltage mutual inductor simple structure for high pressure GIS proposed by the present invention, low cost, insulating properties
Stabilization, improves the security reliability of power network；Capacitive divider is located at tank interior in the present invention, not by extraneous approach effect shadow
Ring, the optional scope of rated capacitance of capacitive divider is big, is not in the phenomenon of ferromagnetic resonance in electric online operation, not by neighbour
Error characteristics are not also influenceed by nearly effects by filthy and relative humidity, error characteristics stabilization, improve high-voltage fence meter
The accuracy of amount.
Brief description of the drawings
Fig. 1 is the can type capacitor voltage mutual inductor structure chart for high pressure GIS provided in an embodiment of the present invention.
Specific embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give presently preferred embodiments of the present invention.But, the present invention can be realized in many different forms, however it is not limited to this paper institutes
The embodiment of description.On the contrary, the purpose for providing these embodiments is made to the more thorough of the disclosure understanding
Comprehensively.It should be noted that when an element is considered as " connection " another element, it can be directly to another
Element may be simultaneously present centering elements.Unless otherwise defined, all of technologies and scientific terms used here by the article with
Belong to the implication that those skilled in the art of the invention are generally understood that identical.Made in the description of the invention herein
Term is intended merely to describe the purpose of specific embodiment, it is not intended that in the limitation present invention.Term as used herein
" and/or " include the arbitrary and all of combination of one or more related Listed Items.
Refer to shown in Fig. 1, Fig. 1 is the can type capacitor voltage mutual inductance for high pressure GIS provided in an embodiment of the present invention
Device structure chart.
The can type capacitor voltage mutual inductor for being used for high pressure GIS in the present embodiment specifically includes sealed shell of tank 1, high-field electrode
2nd, middle piezoelectricity pole 3, outlet casing tube 4, electromagnetic unit 5, insulated support 6, insulating part 7,8, two equipotential metal connections of bus
Rod (9,10) and metal fixing plate 11；Two equipotential metals pitman (9,10) are respectively the first equipotential metal company
Take over the baton 9 and the second equipotential metal pitman 10.
The outlet casing tube 4 is located at one end of the first equipotential metal pitman 9 in the present embodiment, installed in institute
State outside sealed shell of tank 1；The first equipotential metal pitman 9 and the second equipotential metal pitman 10 are by the insulation
Support member 6 is fixed on the sealed shell of tank, and about 1 both sides；The insulating part 7 is fixed on the center of inside of the sealed shell of tank 1 position
Put, the high-field electrode 2 is fixed on the insulating part 7, be enclosed within outside the bus 8；The high-field electrode 2 and the bus 8
Connected by the second equipotential metal pitman 10；Medium pressure electrode 3 is arranged on the inwall of the sealed shell of tank 1, by exhausted
Edge support member 6 is fixed；High voltage arm capacitor, middle piezoelectricity pole 3 and sealed shell of tank 1 are formed between the high-field electrode 2 and middle piezoelectricity pole 3
Between formed in pressure arm electric capacity, high voltage arm capacitor and middle pressure arm electric capacity constitute capacitive divider；The outside of the sealed shell of tank 1 adds
Fill the metal fixing plate 11；The electromagnetic unit 5 is arranged on the outer wall of sealed shell of tank 1 with outlet casing tube 4.
Spring is embedded with inside the insulated support 6, when 8 fever expansion of current carrying bus, the spring will absorb one
Divide mechanical stress, keep the relative position of high-field electrode 2 constant.
Specifically, the sealed shell of tank 1 is fabricated by by stainless steel material, its intensity is high, corrosion-resistant.Tank body element is assembled
Before, need first cleansing tissue or dust catcher to clear up the inwall of sealed shell of tank 1 and interface, the interface of sealed shell of tank 1 by flange face,
Seal groove and sealing ring are constituted, it is ensured that the overall tightness of tank body.The bus 8 uses independent aluminum pipe conductor, without straight
Borrow GIS pipelines current carrying bus 8 are connect, reduce influences the intrinsic standoff ratio of divider to change because GIS pipelines current carrying bus 8 generate heat.
The high-field electrode 2 is cylindrical structural, is directly sleeved on the insulating part 7 of the center of inside of sealed shell of tank 1.Medium pressure electrode
3 equally use aluminum pipe, are fixed with several insulated supports 6 between middle piezoelectricity pole 3 and the internal face of sealed shell of tank 1.
The epoxy glass fiber winding pipe of the outlet casing tube 4, its chemical property is good, tension Compressive Strength and bending strength
Height, wall thickness is small, radial insulation reliability.The electromagnetic unit 5 is the structure of conventional voltage transformer electromagnetic unit 5, by middle transformation
Device, compensation reactor, protection device and damper etc. are constituted.Dipping transformer oil in electromagnetic unit 5, fuel tank sealing, pasta from
Case lid retains certain space, is compensated as oil volume breathing and used.The equipotential metal pitman uses the galvanized steel bar of 20*8,
Its Main Function is connection high-field electrode 2 and bus 8, is at equipotential, and two equipotential metal pitmans are by insulation
Support member 6 is fixed on the upper and lower both sides of tank body, and equipotential bonding should carry out galvanizing treatment with bolt, packing ring and nut etc..It is described
Metal fixing plate 11 uses stainless steel, and through epoxy resin outer cladding tank body, Bottom ground, its surface is in normal work
It is not charged tangibly, and phenomenon of arc discharge will not be produced under the conditions of harsh climate, improve security and the longevity of transformer
Life.
Compared with conventional electromagnetic voltage transformer, the capacitive divider major insulation of pot type CVT is used in the present invention
SF6 gases, divider is in tank interior, is not influenceed by extraneous approach effect, and the rated capacitance of capacitive divider can be selected
Very little.High voltage arm capacitor is coaxial clyinder structure, is made up of voltage capacitance in multiple, and effect is the partial pressure for adjusting divider
Than.In addition, a bus is without GIS pipeline current carrying bus are directly borrowed as high-field electrode, this all consideration is because once
Bus heating can increase Primary Conductor electrode expansion amount so that high voltage arm capacitor increases, and causes the intrinsic standoff ratio variable quantity of divider
Increase, in order to reduce the influence of bus heating, one time bus is separately electrically connected with wire.
Technical scheme simple structure, low cost, stable insulation improves the security reliability of power network；
Capacitive divider is located at tank interior in the present invention, is not influenceed by extraneous approach effect, and the rated capacitance of capacitive divider can
Select scope big, be not in the phenomenon of ferromagnetic resonance in electric online operation, do not influenceed by kindred effect, also not by filthy and relative
Influence of the humidity to error characteristics, error characteristics stabilization, improves the accuracy of high-voltage fence metering.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although the present invention is carried out by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
More other Equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (3)
1. a kind of can type capacitor voltage mutual inductor for high pressure GIS, it is characterised in that including sealed shell of tank, high-field electrode,
Middle piezoelectricity pole, outlet casing tube, electromagnetic unit, insulated support, insulating part, bus, two equipotential metal pitmans and gold
Category fixed plate；Two equipotentials metal pitman is respectively the first equipotential metal pitman and the second equipotential metal connects
Take over the baton；The outlet casing tube is located at one end of the first equipotential metal pitman, outside the sealed shell of tank；Institute
State the first equipotential metal pitman and the second equipotential metal pitman is fixed on the sealing by the insulated support
The upper and lower both sides of tank body；The insulating part is fixed on the sealed shell of tank center of inside position, and the high-field electrode is fixed on described
On insulating part, it is enclosed within outside the bus；The high-field electrode is connected with the bus by the second equipotential metal pitman
Connect；Medium pressure electrode is arranged on the sealed shell of tank inwall, is fixed by insulated support；The high-field electrode and middle piezoelectricity pole
Between form high voltage arm capacitor, between middle piezoelectricity pole and sealed shell of tank formed in pressure arm electric capacity, high voltage arm capacitor and middle pressure arm electricity
Hold and constitute capacitive divider；The sealed shell of tank outside installs the metal fixing plate additional；The electromagnetic unit is arranged on and carries
On the sealed shell of tank outer wall of outlet casing tube.
2. the can type capacitor voltage mutual inductor for high pressure GIS according to claim 1, it is characterised in that it is described absolutely
Spring is embedded with inside edge support member；The high-field electrode is cylindrical structural.
3. the can type capacitor voltage mutual inductor for high pressure GIS according to any one of claim 1 or 2, its feature exists
In the outlet casing tube uses epoxy glass fiber winding pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611254901.9A CN106771464A (en) | 2016-12-30 | 2016-12-30 | A kind of can type capacitor voltage mutual inductor for high pressure GIS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611254901.9A CN106771464A (en) | 2016-12-30 | 2016-12-30 | A kind of can type capacitor voltage mutual inductor for high pressure GIS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106771464A true CN106771464A (en) | 2017-05-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611254901.9A Pending CN106771464A (en) | 2016-12-30 | 2016-12-30 | A kind of can type capacitor voltage mutual inductor for high pressure GIS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106771464A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358278A (en) * | 2018-12-07 | 2019-02-19 | 国网湖北省电力有限公司电力科学研究院 | The scene extra-high voltage SF6 exchanges Insulation Test reactor |
| CN109375084A (en) * | 2018-12-07 | 2019-02-22 | 国网湖北省电力有限公司电力科学研究院 | Extra-high voltage GIS integrated Insulation Test platform based on SF6 insulation reactor |
| CN111292926A (en) * | 2020-03-04 | 2020-06-16 | 山东泰开互感器有限公司 | 10kV pouring type capacitive voltage transformer with self-healing protection function and installation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1912638A (en) * | 2006-08-17 | 2007-02-14 | 国网武汉高压研究院 | Can type capacitor voltage mutual inductor |
| CN200968968Y (en) * | 2006-08-17 | 2007-10-31 | 国网武汉高压研究院 | Can-type capacitance type potential transformer |
| CN206489206U (en) * | 2016-12-30 | 2017-09-12 | 无锡市锡容电力电器有限公司 | A kind of can type capacitor voltage mutual inductor for high pressure GIS |
-
2016
- 2016-12-30 CN CN201611254901.9A patent/CN106771464A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1912638A (en) * | 2006-08-17 | 2007-02-14 | 国网武汉高压研究院 | Can type capacitor voltage mutual inductor |
| CN200968968Y (en) * | 2006-08-17 | 2007-10-31 | 国网武汉高压研究院 | Can-type capacitance type potential transformer |
| CN206489206U (en) * | 2016-12-30 | 2017-09-12 | 无锡市锡容电力电器有限公司 | A kind of can type capacitor voltage mutual inductor for high pressure GIS |
Non-Patent Citations (1)
| Title |
|---|
| 王晓琪等: "1000kV GIS用罐式电容式电压互感器", 《高电压技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358278A (en) * | 2018-12-07 | 2019-02-19 | 国网湖北省电力有限公司电力科学研究院 | The scene extra-high voltage SF6 exchanges Insulation Test reactor |
| CN109375084A (en) * | 2018-12-07 | 2019-02-22 | 国网湖北省电力有限公司电力科学研究院 | Extra-high voltage GIS integrated Insulation Test platform based on SF6 insulation reactor |
| CN111292926A (en) * | 2020-03-04 | 2020-06-16 | 山东泰开互感器有限公司 | 10kV pouring type capacitive voltage transformer with self-healing protection function and installation method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
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