CN101329935A - External insulation casing pipe for 500 kv sulfur hexafluoride current mutual inductor - Google Patents
External insulation casing pipe for 500 kv sulfur hexafluoride current mutual inductor Download PDFInfo
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- CN101329935A CN101329935A CNA2008100319774A CN200810031977A CN101329935A CN 101329935 A CN101329935 A CN 101329935A CN A2008100319774 A CNA2008100319774 A CN A2008100319774A CN 200810031977 A CN200810031977 A CN 200810031977A CN 101329935 A CN101329935 A CN 101329935A
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- porcelain spare
- epoxy resin
- glass fiber
- resin impregnated
- winding cylinder
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/32—Single insulators consisting of two or more dissimilar insulating bodies
- H01B17/325—Single insulators consisting of two or more dissimilar insulating bodies comprising a fibre-reinforced insulating core member
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Abstract
The invention relates to an outer insulation sleeve of a 500kV SF6 current transformer; the outer insulation sleeve is designed as the structural form that a porcelain piece with an umbrella skirt and a glass filament winding tube soaked by epoxy resin is combined and an insulation filling is injected between the porcelain piece and the glass filament winding tube soaked by epoxy resin, and is manufactured by the connection of an upper flange and a lower flange; the outer insulation sleeve of a 500kV SF6 current transformer that is manufactured by connecting the porcelain piece and the glass filament winding tube soaked by epoxy resin by special flanges can greatly increase the operating reliability and safety of the outer insulation sleeve of SF6 high-voltage electric equipment, makes great contribution to the safe and reliable operation of the electric power system and is an important breakthrough.
Description
Technical field
The present invention relates to a kind of superhigh pressure sulfur hexafluoride current mutual inductor external insulation casing pipe, particularly 500kVSF
6The current transformer external insulation casing pipe.
Background technology
The 500kV sulphur hexafluoride (is called SF in the following text
6) current transformer is one of important high voltage electric power equip ment, its safe and reliable work operation relates to the safe operate as normal of 500kV power transmission and transformation system.But, for a long time, SF
6Power equipment is assurance 500kV SF with external insulation casing pipe high mechanical properties performance demands, the performance requirement of icing snowberg and electric property requirement always
6The focus that receives much concern of current transformer safe and reliable operation is to influence SF
6One of the biggest factor of electric equipment security reliability.
Present 500kV SF
6Current transformer generally has two kinds of patterns with external insulation casing pipe:
The insulated porcelain sleeve that a kind of C130 of being (IEC60672) high strength electroceramice material is made forms integral body by main body porcelain spare and two ends metal flange through the cement glue gluing, and porcelain spare adopts merogenesis insulator shaping structures more, and the organic bonding explained hereafter is made; It can satisfy SF
6The icing snowberg performance requirement of power equipment and electric property requirement, but porcelain belongs to fragile material after all, modulus of elasticity is little, and its mechanical strength is limited, particularly at SF
6Gas is expanded by overcurrent overvoltage generation high temperature, causes the SF of device interior
6The hurried rising of gas pressure, limited because of the internal pressure strength of porcelain sleeve pipe, the serious accident that insulator explodes can take place under extreme case.
Another kind is the composite sheath made from organic material relatively commonly used, and fiber glass epoxy and silicon rubber composite monolithic sleeve pipe promptly are at the outside bonding silicon rubber full skirt overcoat of epoxy resin impregnated glass fiber winding cylinder, and connection metal flange annex is installed at its two ends again.It can satisfy SF
6The high mechanical properties performance requirement of power equipment and electric property requirement, but this sleeve pipe is easily aging, easily by birdseed.Under extreme natural weather condition, such as the ice damage incident that takes place, the icing snowberg performance of the organic insulation sleeve pipe of silastic material can not satisfy the needs of the normal operation of high voltage electric power equip ment at all.Accidents such as aging, the deterioration that the organic overcoat of silicon rubber exists because of the reason of material own, bird pest, the plague of rats also device fabrication and in service happening occasionally, have greatly reduced the 500kV SF of the organic composite sheath of silicon rubber
6The operational reliability of current transformer.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective, provide a kind of porcelain spare to be sleeved on the epoxy resin impregnated glass fiber winding cylinder, between porcelain spare and epoxy resin impregnated glass fiber winding cylinder, inject the 500kV SF of insulation filler
6The current transformer external insulation casing pipe.
Technical scheme of the present invention: be in order to solve above two kinds of deficiencies that insulating coating exists separately, as much as possible to increase 500kV SF
6The operational reliability of current transformer is so the emphasis of invention is the 500kV SF that adopts outer cotton up to spare of porcelain and epoxy resin impregnated glass fiber winding cylinder to combine
6The current transformer external insulation casing pipe.
500KV SF
6Current transformer comprises with external insulation casing pipe and it is characterized in that the porcelain spare and the lower flange of upper flange, cement glue, band full skirt: be with 500KV SF
6Current transformer is designed to combine with epoxy resin impregnated glass fiber winding cylinder, be injected with between porcelain spare and the epoxy resin impregnated glass fiber winding cylinder with the porcelain spare of full skirt the version of insulation filler with external insulation casing pipe, its described upper and lower flange is provided with porcelain spare mucilage binding groove and hole for injecting glue, and the two ends up and down of described epoxy resin impregnated glass fiber winding cylinder are connected fastening by epoxy adhesive with upper and lower flange;
Porcelain spare is sleeved on and forms circular gap on the epoxy resin impregnated glass fiber winding cylinder periphery, its porcelain spare two ends import respectively in the mucilage binding groove of two end flanges, carrying out circumferential mucilage binding by cement glue, that two flanges are connected with porcelain spare is fastening, is provided with fluid sealant between the both ends of the surface of mucilage binding groove bottom on the upper and lower flange and porcelain spare;
Porcelain spare is sleeved on the epoxy resin impregnated glass fiber winding cylinder and is injected with in the circular gap that forms to increase the insulation filler of gap intensity between porcelain spare and the epoxy resin impregnated glass fiber winding cylinder, and its insulation filler is commercially available special isolation filler.
During assembling, adopt epoxy resin impregnated glass fiber winding cylinder, process screw thread or the concavo-convex rib that connects metal flange in advance at two ends, it is fastening good then epoxy resin impregnated glass fiber winding cylinder lower end and metal flange to be connected earlier, it is upright, and end face of flange lands.Again that prior organic bonding is good porcelain spare is enclosed within epoxy resin impregnated glass fiber winding cylinder outside, porcelain spare lower end is imported in the mucilage binding groove of lower flange, and the levelling relative position is used the cement glue mucilage binding, and lower flange and porcelain spare lower end is linked together.After cement reaches prescribed strength through maintenance, again the upper end of the stain glass fiber winding cylinder that special upper flange is soaked with epoxy resin earlier connect fastening good, treat its fixing after, with its inversion, connect with the upper end and the upper flange gummed of cement glue with porcelain spare, cement also will pass through maintenance.Attachedly help cooperatively interacting between sealing and size for what guarantee flange and porcelain spare end face, be necessary between flange and porcelain spare both ends of the surface, fluid sealant to be set.Then,, between porcelain spare and epoxy resin impregnated glass fiber winding cylinder, inject insulation filler, to increase the dielectric strength in gap between porcelain spare and the epoxy cylinder with special equipment by hole for injecting glue pre-processed on the flange.
This employing porcelain spare and the same 500kV SF that makes through common connection of special flange of epoxy resin impregnated glass fiber winding cylinder
6The current transformer external insulation casing pipe can greatly improve foregoing SF
6The operational reliability of high voltage electric equipment external insulation casing pipe and fail safe are very big contribution and the important breakthrough to the power system security reliability service.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Among the figure: 1-upper flange, 2-epoxy adhesive, 3-fluid sealant, 4-cement glue, the porcelain spare of 5-band full skirt, 6-insulation filler, the glass fiber winding cylinder that 7-is epoxy resin impregnated, 8-lower flange.
Embodiment
Referring to accompanying drawing, a kind of 500 kv sulfur hexafluoride current mutual inductor external insulation casing pipes, comprise upper flange 1, cement glue 4, the porcelain spare 5 and the lower flange 8 of band full skirt, it is characterized in that it being that 500 kv sulfur hexafluoride current mutual inductors are designed to combine with epoxy resin impregnated glass fiber winding cylinder 7 with the porcelain spare 5 of full skirt with external insulation casing pipe, be injected with the version of insulation filler 6 between porcelain spare 5 and the epoxy resin impregnated glass fiber winding cylinder 7, on it is described, lower flange 1,8 are provided with porcelain spare mucilage binding groove and hole for injecting glue, the two ends up and down of described epoxy resin impregnated glass fiber winding cylinder 7 by epoxy adhesive 2 with last, lower flange connects fastening; Porcelain spare 5 is sleeved on and forms circular gap on epoxy resin winding cylinder 7 peripheries, its porcelain spare 5 two ends import respectively in the mucilage binding groove of two end flanges, by cement glue 4 circumferential mucilage bindings two flanges are connected with porcelain spare 5 fastening, is provided with fluid sealant 3 between the mucilage binding groove bottom on the upper and lower flange and the both ends of the surface of porcelain spare 5;
Porcelain spare 5 is sleeved on the epoxy resin impregnated glass fiber winding cylinder 7 and is injected with in the circular gap that forms to increase the insulation filler 6 of gap intensity between porcelain spare and the epoxy resin impregnated glass fiber winding cylinder; Its insulation filler 6 is commercially available special isolation filler, is the insulation filling agent that manufacturer produced of adopting the Xiamen City in the present embodiment, and its trade mark is ES888.
Claims (1)
1, a kind of 500 kv sulfur hexafluoride current mutual inductor external insulation casing pipes, it comprises the porcelain spare (5) and the lower flange (8) of upper flange (1), cement glue (4), band full skirt, it is characterized in that:
A, described 500 kv sulfur hexafluoride current mutual inductors are designed to that porcelain spare (5) with full skirt combines with epoxy resin impregnated glass fiber winding cylinder (7), are injected with the version of insulation filler (6) between porcelain spare (5) and the epoxy resin impregnated glass fiber winding cylinder (7) with external insulation casing pipe, its described upper and lower flange (1), (8) are provided with porcelain spare mucilage binding groove and hole for injecting glue, and the two ends up and down of described epoxy resin impregnated glass fiber winding cylinder (7) are connected fastening by epoxy adhesive (2) with upper and lower flange;
B, described porcelain spare (5) are sleeved on and form circular gap on epoxy resin impregnated glass fiber winding cylinder (7) periphery, its porcelain spare (5) two ends import respectively in the mucilage binding groove of two end flanges, carrying out circumferential mucilage binding by cement glue (4), that two flanges are connected with porcelain spare (5) is fastening, is provided with fluid sealant (3) between the both ends of the surface of mucilage binding groove bottom on the upper and lower flange and porcelain spare (5);
C, described porcelain spare (5) are sleeved on and are injected with in the circular gap that epoxy resin impregnated glass fiber winding cylinder (7) is gone up and form to increase the insulation filler (6) of gap intensity between porcelain spare and the epoxy resin impregnated glass fiber winding cylinder, and its insulation filler (6) is commercially available special isolation filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100319774A CN101329935B (en) | 2008-08-01 | 2008-08-01 | External insulation casing pipe for 500 kv sulfur hexafluoride current mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100319774A CN101329935B (en) | 2008-08-01 | 2008-08-01 | External insulation casing pipe for 500 kv sulfur hexafluoride current mutual inductor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101329935A true CN101329935A (en) | 2008-12-24 |
| CN101329935B CN101329935B (en) | 2010-08-04 |
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ID=40205678
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100319774A Active CN101329935B (en) | 2008-08-01 | 2008-08-01 | External insulation casing pipe for 500 kv sulfur hexafluoride current mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101329935B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102314977A (en) * | 2010-07-08 | 2012-01-11 | 江苏九鼎新材料股份有限公司 | Porcelain composite insulator and manufacturing method thereof |
| CN102568715A (en) * | 2010-12-30 | 2012-07-11 | 河南省电力公司焦作供电公司 | Insulator umbrella skirt, insulators comprising umbrella skirt as well as manufacturing methods for insulator umbrella skirt and insulators |
| CN103413638A (en) * | 2013-07-26 | 2013-11-27 | 江苏神马电力股份有限公司 | Insulating sleeve |
| CN110853871A (en) * | 2019-10-22 | 2020-02-28 | 宿松恒达电气配件有限公司 | High-pressure flange of oiled paper capacitor bushing |
| CN114188906A (en) * | 2021-12-02 | 2022-03-15 | 华贵电气股份有限公司 | High-voltage wall bushing and preparation method thereof |
-
2008
- 2008-08-01 CN CN2008100319774A patent/CN101329935B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102314977A (en) * | 2010-07-08 | 2012-01-11 | 江苏九鼎新材料股份有限公司 | Porcelain composite insulator and manufacturing method thereof |
| CN102314977B (en) * | 2010-07-08 | 2012-12-26 | 江苏九鼎新材料股份有限公司 | Porcelain composite insulator and manufacturing method thereof |
| CN102568715A (en) * | 2010-12-30 | 2012-07-11 | 河南省电力公司焦作供电公司 | Insulator umbrella skirt, insulators comprising umbrella skirt as well as manufacturing methods for insulator umbrella skirt and insulators |
| CN102568715B (en) * | 2010-12-30 | 2014-06-04 | 国家电网公司 | Insulator umbrella skirt, insulators comprising umbrella skirt as well as manufacturing methods for insulator umbrella skirt and insulators |
| CN103413638A (en) * | 2013-07-26 | 2013-11-27 | 江苏神马电力股份有限公司 | Insulating sleeve |
| CN110853871A (en) * | 2019-10-22 | 2020-02-28 | 宿松恒达电气配件有限公司 | High-pressure flange of oiled paper capacitor bushing |
| CN114188906A (en) * | 2021-12-02 | 2022-03-15 | 华贵电气股份有限公司 | High-voltage wall bushing and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101329935B (en) | 2010-08-04 |
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Owner name: LILING HUAXIN PORCELAIN INSULATOR + ELECTRIC APPAR Free format text: FORMER NAME: LILING HUAXIN ELECTRIC PORCELAIN AND ELECTRICAL APPARATUS CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 412208 three steps village, Pukou Town, Hunan, Liling Patentee after: Liling Huaxin Insulator Technology Co., Ltd. Address before: 412208 three steps village, Pukou Town, Hunan, Liling Patentee before: Liling Huaxin Porcelain Insulator & Electric Apparatus Co., Ltd. |