CN101521360A - Insulation mode for metal closed combined electrical appliance - Google Patents
Insulation mode for metal closed combined electrical appliance Download PDFInfo
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- CN101521360A CN101521360A CN200910025154A CN200910025154A CN101521360A CN 101521360 A CN101521360 A CN 101521360A CN 200910025154 A CN200910025154 A CN 200910025154A CN 200910025154 A CN200910025154 A CN 200910025154A CN 101521360 A CN101521360 A CN 101521360A
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- combined electrical
- insulation
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- electrical appliance
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Abstract
The invention relates to an insulation mode for a metal closed combined electrical appliance of a high-voltage substation. A high-voltage sleeve, a current mutual inductor, a voltage mutual inductor, an isolation-earthing switch, a breaker and an operation mechanism are connected to form a sealed body through a bus; different parts are separated into different air chambers by using an isolation insulating basin; and different gases are filled into different air chambers or the air chambers keep a vacuum state. The breaker and an isolation switch part in the combined electrical appliance adopt vacuum insulation, and other parts adopt an insulation mode by combining nitrogen or other inert gases. Therefore, the insulation mode saves the production cost, reduces the product cost, and solves the problem that when SF6 gas insulating totally-closed combined electrical appliance is carried out product inspection and repair, the gas is leaked because of incomplete gas recovering or poor product sealing to pollute atmosphere.
Description
Technical field
The present invention relates to a kind of insulation mode of high pressure combined electrical apparatus, be specifically related to a kind of insulation mode of high voltage substation metal closed combined electrical appliance.
Technical background
Along with the continuous development of China's power grid construction, all had higher requirement in the related personal security of power transmission and transformation outfit, equipment environmental protection, reliable economy aspect.Along with continuous advancement in technology,, occurred in recent years by SF in order to economize the land resource
6Gas isolated metal enclosed combined electrical apparatus, it is with the primary equipment of transformer station except that transformer, comprises that components and parts combined closings such as circuit breaker, sleeve pipe, isolating switch, earthed switch, current transformer, voltage transformer are in the metal shell of ground connection.In order to guarantee the normal break-make of circuit, to fill SF at device interior
6Gas insulate.But when circuit breaker folding circuit, the SF of device interior
6Under the impact of high-tension electricity, be easy to generate poisonous gas, there is defective in sealing as fruit product, these gas permeations are in atmosphere and environment, can work the mischief to the ozone layer in people and the atmosphere, therefore, study free of contamination insulation technology is an important topic in high pressure power transmission and distribution field always.
Summary of the invention
The objective of the invention is to solve at combined electrical apparatus built-in electrical insulation and arc extinguishing.
The present invention is achieved through the following technical solutions:
A kind of metal closed combined electrical appliance is that bushing, current transformer, voltage transformer, isolation-earthed switch, circuit breaker and operating mechanism are linked to be seal by bus, with the isolated insulation basin different parts are divided into different air chambers, in different air chambers, charge into gas with various or keep vacuum state.
The invention has the beneficial effects as follows:
Circuit breaker and isolating switch parts in combined electrical apparatus inside adopt vacuum insulation, the insulation mode that other parts adopt nitrogen or other inert gas to combine, and the one, saved production cost, reduced the product cost, the 2nd, solved SF
6Gas-insulating and fully-enclosed combined electrical apparatus when product overhauls, because of gas reclaims thoroughly or the product sealing is bad produces gas leakage, the problem that atmosphere is polluted.
Description of drawings
Fig. 1 is an insulation mode general structure longitudinal profile schematic diagram of the present invention.
Embodiment
As shown in Figure 1, metal closed combined electrical appliance of the present invention comprises that sleeve pipe (1), bus (2), current transformer (3), circuit breaker (4), three conductors (5), voltage transformer (7), isolation-earthed switch (8), conductor components and parts combined closings such as (12) are in the metal shell of ground connection.And by isolated insulation basin (9) with different parts every in different sealed gas chambers.
Embodiment:
Sleeve pipe (1) parts adopt compound insulating sleeve, and binding post is arranged at the top of each sleeve pipe, so that whole electrical equipment can be connected with the lead of outside.As conductor, three sleeve pipes all are connected on the housing each inside pipe casing, form a collar tube sub-assembly with aluminum pipe.Inside is filled dry, and nitrogen or other inert gas that pressure reaches higher atmospheric pressure insulate.Concrete pressure is relevant with the electric pressure of capital equipment, and the size of conductor is main relevant with the size of rated current; The housing of bus (2) parts adopts cast aluminium alloy, the conductor inside aluminum pipe, and inside is filled dry nitrogen or other inert gas and is insulated; Isolation-earthed switch (8) parts adopt copper-tungsten to the position conductor that is easy to generate electric arc, the inner mode that adopts vacuum insulation; Current transformer (3) parts adopt conventional electromagnetic current transducer, and the three-phase instrument transformer is combined.Inside is filled dry nitrogen or inert gas and is insulated; Circuit breaker (4) is inner to insulate with vacuum, and three arc control device are combined, and in a cylindrical shell, make whole circuit breaker that smaller volume be arranged jointly; Isolated insulation basin (9) adopts mosaic texture, and big flange aluminum component, pouring piece use epoxy resin as insulation, in the middle of the pouring piece aluminium conductor are arranged, and three pouring piece bolted are on big flange; Bus shell at metal closed combined electrical appliance is equipped with pressure switch (10), at case for circuit breaker vacuum relay (11) is housed, with the size of control vacuum degree or the size of gas pressure.For the influence of compensation temperature, these relays should have the function (belong to prior art, working method repeats no more) of compensates.
Claims (5)
1. the insulation mode of a metal enclosed combined electrical apparatus, metal closed combined electrical appliance comprises that sleeve pipe (1), bus (2), current transformer (3), circuit breaker (4), three conductors (5), voltage transformer (7), isolation-earthed switch (8), conductor components and parts combined closings such as (12) are in the metal shell of ground connection.And by isolated insulation basin (9) with different parts every in different sealed gas chambers.It is characterized in that substituting SF with inert gas or vacuum state
6Charge in each air chamber of combined electrical apparatus as dielectric.
2. the insulation mode of metal enclosed combined electrical apparatus as claimed in claim 1 is characterized in that the inner barrel of and three-phase conductor (5) inner at sleeve pipe (1) is used high pressure N
2, the insulation of other inert gas or vacuum mode.
3. the insulation mode of metal enclosed combined electrical apparatus as claimed in claim 1 is characterized in that the inner and inner high pressure N that uses of voltage transformer (7) at current transformer (3)
2Or other inert gas insulation.
4. the insulation mode of metal enclosed combined electrical apparatus as claimed in claim 1 is characterized in that the inner and inner use of circuit breaker (4) the vacuum mode insulation at isolation-ground connection (8) switch block.
5. the insulation mode of metal enclosed combined electrical apparatus as claimed in claim 1 is characterized in that each air chamber of combined electrical apparatus inside carries out airtight isolation by isolated insulation basin (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910025154A CN101521360A (en) | 2009-02-18 | 2009-02-18 | Insulation mode for metal closed combined electrical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910025154A CN101521360A (en) | 2009-02-18 | 2009-02-18 | Insulation mode for metal closed combined electrical appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101521360A true CN101521360A (en) | 2009-09-02 |
Family
ID=41081796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910025154A Pending CN101521360A (en) | 2009-02-18 | 2009-02-18 | Insulation mode for metal closed combined electrical appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101521360A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908737A (en) * | 2010-08-06 | 2010-12-08 | 汉斯（福州）电气有限公司 | Buried type ring main unit |
| CN105098637A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Integrated 35kV power transformation device |
| CN106058709A (en) * | 2016-06-29 | 2016-10-26 | 河南平芝高压开关有限公司 | GIS reserved spacing and GIS equipment |
| CN106129887A (en) * | 2016-06-29 | 2016-11-16 | 河南平芝高压开关有限公司 | GIS prepared separation, outside line enlargement method and GIS device |
| CN109450225A (en) * | 2018-11-28 | 2019-03-08 | 清华大学 | A method of converters built-in electrical insulation is improved using inert gas |
| CN112748274A (en) * | 2019-10-31 | 2021-05-04 | 西安西电高压开关有限责任公司 | Current measuring device |
| CN113777456A (en) * | 2021-10-08 | 2021-12-10 | 江苏安靠智能输电工程科技股份有限公司 | On-spot insulation test device of totally enclosed gas insulation high voltage switch |
| CN113899996A (en) * | 2021-10-08 | 2022-01-07 | 江苏安靠智能输电工程科技股份有限公司 | On-spot high-voltage insulation test device |
-
2009
- 2009-02-18 CN CN200910025154A patent/CN101521360A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908737A (en) * | 2010-08-06 | 2010-12-08 | 汉斯（福州）电气有限公司 | Buried type ring main unit |
| CN101908737B (en) * | 2010-08-06 | 2012-10-24 | 汉斯（福州）电气有限公司 | Buried type ring main unit |
| CN105098637A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Integrated 35kV power transformation device |
| CN106058709A (en) * | 2016-06-29 | 2016-10-26 | 河南平芝高压开关有限公司 | GIS reserved spacing and GIS equipment |
| CN106129887A (en) * | 2016-06-29 | 2016-11-16 | 河南平芝高压开关有限公司 | GIS prepared separation, outside line enlargement method and GIS device |
| CN106058709B (en) * | 2016-06-29 | 2018-02-02 | 河南平芝高压开关有限公司 | A kind of GIS prepared separations and a kind of GIS device |
| CN109450225A (en) * | 2018-11-28 | 2019-03-08 | 清华大学 | A method of converters built-in electrical insulation is improved using inert gas |
| CN112748274A (en) * | 2019-10-31 | 2021-05-04 | 西安西电高压开关有限责任公司 | Current measuring device |
| CN112748274B (en) * | 2019-10-31 | 2023-05-16 | 西安西电高压开关有限责任公司 | Current measuring device |
| CN113777456A (en) * | 2021-10-08 | 2021-12-10 | 江苏安靠智能输电工程科技股份有限公司 | On-spot insulation test device of totally enclosed gas insulation high voltage switch |
| CN113899996A (en) * | 2021-10-08 | 2022-01-07 | 江苏安靠智能输电工程科技股份有限公司 | On-spot high-voltage insulation test device |
| CN113899996B (en) * | 2021-10-08 | 2023-11-14 | 江苏安靠智能输电工程科技股份有限公司 | On-spot high voltage insulation test device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090902 |