CN201886882U - Outlet structure of SF6 insulation test transformer - Google Patents
Outlet structure of SF6 insulation test transformer Download PDFInfo
- Publication number
- CN201886882U CN201886882U CN2010206255088U CN201020625508U CN201886882U CN 201886882 U CN201886882 U CN 201886882U CN 2010206255088 U CN2010206255088 U CN 2010206255088U CN 201020625508 U CN201020625508 U CN 201020625508U CN 201886882 U CN201886882 U CN 201886882U
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- switch
- isolating switch
- isolating
- earthed
- gas
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Abstract
The utility model discloses the outlet structure of an SF6 insulation test transformer, comprising a first isolating switch, a second isolating switch, a first earthing switch and a second earthing switch which are fixedly installed on the insulation test transformer, wherein the first isolating switch and the first earthing switch are installed at one side of a high-voltage outlet sleeve, and the second isolating switch and the second earthing switch are installed at one side of a butted test port. In the utility model, shells for the earthing switches and that for the isolating switches are isolated from each other through insulating boards and are connected through conducting wires. When partial discharge is carried out, the conducting wires connecting the shells for the earthing switches and that for the isolating switches can be separated, and standard quantity injection can be realized directly through the earthing switches, thereby achieving convenient and fast operation.
Description
Technical field:
The utility model belongs to the high-voltage switch gear field, relates to a kind of SF
6Gas-insulated testing transformer outlet structure, especially a kind of SF
6The gas-insulated testing transformer outlet structure of isolating switch and earthed switch.
Background technology:
The GIS product export need carry out industrial frequency withstand voltage and partial discharge test, and GIS product export test method adopted and passes through SF in the past
6Gas-insulated testing transformer high-voltage terminal sleeve pipe is guided to the GIS product with high-voltage connection, and there are two problems in this test method:
The high-voltage terminal sleeve pipe can receive outer signals and disturb, make local discharge test be subjected to the influence of external interference signal: testing transformer high-voltage terminal sleeve pipe be connected GIS product high-voltage connection the effect of reception antenna arranged, and the long more received signal ability of high-voltage connection is strong more, often occurring the external interference signal value when GIS product export local discharge test is higher than GIS product local discharge test required value (general GIS product export test requirements document value is 5pC, part is 3pC), and the external interference signal is often tested the requirement of 5pC considerably beyond the GIS product export, must wait until when the external interference signal is lower than 5pC and can carry out GIS product partial discharge test, influence the GIS of company production progress.
The restriction of pilot region: when the GIS product carries out local discharge test, need to be connected between testing transformer high-voltage terminal sleeve pipe and product sleeve pipe with thick conductor, conductor short receptor external interference signal capabilities more is weak more, GIS product local discharge test is easy more to be passed through, thereby the GIS product generally is installed near the testing transformer high-voltage terminal sleeve pipe, and limited place has been limited the GIS product quantity is installed near the high-voltage terminal sleeve pipe.
Solve the problem that exists in the GIS product testing local discharge test, can be by the external interference signal-shield ground be solved, adopt GIS product and testing transformer docking mode to test for this reason, and can reach the purpose of dealing with problems with 1000kV isolating switch and earthed switch.
The utility model is newly-increased part on former testing transformer basis, and newly-increased part be to exit (isolating switch 2 and earthed switch 2) near near high-voltage terminal sleeve pipe (isolating switch 1 and earthed switch 1) and product.By new version, can reach following effect:
For not carrying out local discharge test or relatively being easy to carry out the product of local discharge test, can stretch out lead-in wire by the high voltage test sleeve pipe and test, concrete operations are that isolating switch 1 closes, isolating switch 2 minutes, earthed switch 1 minute, earthed switch 2 close and reach test objective.
For the demanding product of local discharge test, by export 1 and outlet 2 butt joints test, make outer signals by equipment and product casing ground connection, reach the purpose of shielding external interference signal.Concrete operations are that isolating switch 2 closes, isolating switch 1 minute, earthed switch 2 minutes, earthed switch 1 close.
The utility model content:
The novel purpose of the present invention provides a kind of SF
6Gas-insulated testing transformer outlet structure, by isolation, ground connection to 1000kV testing transformer high-voltage terminal sleeve pipe or butt joint test port, reach by high-voltage connection or by the butt joint test port GIS product is carried out withstand voltage and local discharge test, increase work efficiency.
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, and a kind of SF is provided
6Gas-insulated testing transformer outlet structure comprises first isolating switch, second isolating switch, first earthed switch and second earthed switch that are fixedly mounted on the Insulation Test transformer; Described first isolating switch and first earthed switch are installed in high-voltage terminal sleeve pipe one side, and described second isolating switch and second earthed switch are installed in butt joint test port one side.
Described first isolating switch and second isolating switch adopt SF
6Gas isolated metal shell enclosed switch.
Described first isolating switch is identical with the second isolating switch structure, all comprises moving contact and fixed contact, the inner scroll bar drive mechanism that adopts of moving contact, and gear parts links to each other with the isolating switch rotating part by insulated tension pole.
Described first earthed switch is identical with the second earthed switch structure, is manual manipulation mode all, reaches earth brace by the manual compression spring and partly contacts with the isolating switch moving contact and separate; The earth brace termination is a ball-type, and end portion is connected with earth brace with spring, and end portion can be stretched within the specific limits, guarantees reliably to contact with the isolating switch moving contact.
Described first earthed switch and the first isolating switch shell are isolated with insulation board, by lead first earthed switch are connected with the first isolating switch shell.
Described second earthed switch and the second isolating switch shell are isolated with insulation board, by lead second earthed switch are connected with the second isolating switch shell.
The utility model by single bushing outlet method, is changed into the 1000kV testing transformer bushing outlet and two kinds of forms of butt joint test port, and is realized that the key of this conversion is design and installation 1000kV isolating switch and earthed switch.This isolating switch is SF
6Gas-insulated, employing metal shell enclosed switch, critical piece comprises moving rotating part, contact part, fixed contact part.
The specification requirement of 1000kV voltage is born in switch fracture and insulation against ground, high-volume reach under 740kV with the current political situation to be lower than 2pC, applicable to 1000kV electric pressure and following SF
6The gas-insulated testing transformer uses.
The main part of this isolating switch comprises moving contact and fixed contact part, the inner scroll bar drive mechanism (being that leading screw cooperates transmission with gear) that adopts of moving contact, gear parts links to each other with the isolating switch rotating part by insulated tension pole, when the isolating switch rotating part rotates, the drive high-voltage contact is flexible, thereby realizes isolating switch branch, the purpose of closing.This isolating switch had both adopted manual manipulation mode, also can adopt electric operating mode, convenient and reliable operation.
Earthed switch is a manual manipulation mode, reaches earth brace by the manual compression spring and partly contacts with the isolating switch moving contact and separate.The earth brace termination is a ball-type, and end portion is connected with earth brace with spring, and end portion can be stretched within the specific limits, guarantees reliably to contact with the isolating switch moving contact.
When product carries out local discharge test, need to inject standard volume by the pulse checksum generator at the high pressure outgoing position, generally go up crane and inject realization at product insulator place by personnel.This design earthed switch and isolating switch shell are isolated with insulation board, by lead earthed switch are connected with the isolating switch shell.When carrying out local discharge test, earthed switch can be connected lead with the isolating switch shell and separate, directly realize the standard volume injection by earthed switch, convenient to operation.
Description of drawings:
Fig. 1 is SF of the present utility model
6Gas-insulated testing transformer outlet structure schematic diagram;
Wherein: 1 is first isolating switch; 2 is first earthed switch; 3 is second isolating switch; 4 is second earthed switch; 5 is the high-voltage terminal sleeve pipe; 6 is first outlet; 7 is second outlet.
Embodiment:
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:
Referring to Fig. 1, a kind of SF
6Gas-insulated testing transformer outlet structure comprises first isolating switch, second isolating switch, first earthed switch and second earthed switch that are fixedly mounted on the Insulation Test transformer; Described first isolating switch and first earthed switch are installed in high-voltage terminal sleeve pipe one side, and described second isolating switch and second earthed switch are installed in butt joint test port one side.
Described first isolating switch and second isolating switch adopt SF
6Gas isolated metal shell enclosed switch.
Described first isolating switch is identical with the second isolating switch structure, all comprises moving contact and fixed contact, the inner scroll bar drive mechanism that adopts of moving contact, and gear parts links to each other with the isolating switch rotating part by insulated tension pole.
Described first earthed switch is identical with the second earthed switch structure, is manual manipulation mode all, reaches earth brace by the manual compression spring and partly contacts with the isolating switch moving contact and separate; The earth brace termination is a ball-type, and end portion is connected with earth brace with spring, and end portion can be stretched within the specific limits, guarantees reliably to contact with the isolating switch moving contact.
Described first earthed switch and the first isolating switch shell are isolated with insulation board, by lead first earthed switch are connected with the first isolating switch shell.
Described second earthed switch and the second isolating switch shell are isolated with insulation board, by lead second earthed switch are connected with the second isolating switch shell.
The utility model by single bushing outlet method, is changed into the 1000kV testing transformer bushing outlet and two kinds of forms of butt joint test port, and is realized that the key of this conversion is design and installation 1000kV isolating switch and earthed switch.This isolating switch is SF
6Gas-insulated, employing metal shell enclosed switch, critical piece comprises moving rotating part, contact part, fixed contact part.
It is characterized in that switch fracture and insulation against ground bear the specification requirement of 1000kV voltage, high-volume reach under 740kV with the current political situation and be lower than 2pC, applicable to 1000kV electric pressure and following SF
6The gas-insulated testing transformer uses.
The main part of this isolating switch comprises moving contact and fixed contact part, the inner scroll bar drive mechanism (being that leading screw cooperates transmission with gear) that adopts of moving contact, gear parts links to each other with the isolating switch rotating part by insulated tension pole, when the isolating switch rotating part rotates, the drive high-voltage contact is flexible, thereby realizes isolating switch branch, the purpose of closing.This isolating switch had both adopted manual manipulation mode, also can adopt electric operating mode, convenient and reliable operation.
Earthed switch is a manual manipulation mode, reaches earth brace by the manual compression spring and partly contacts with the isolating switch moving contact and separate.The earth brace termination is a ball-type, and end portion is connected with earth brace with spring, and end portion can be stretched within the specific limits, guarantees reliably to contact with the isolating switch moving contact.
Above content is to further describing that the present invention did in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present invention only limits to this; for the general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by claims of being submitted to.
Claims (6)
1. SF
6Gas-insulated testing transformer outlet structure is characterized in that: comprise first isolating switch, second isolating switch, first earthed switch and second earthed switch that are fixedly mounted on the Insulation Test transformer; Described first isolating switch and first earthed switch are installed in high-voltage terminal sleeve pipe one side, and described second isolating switch and second earthed switch are installed in butt joint test port one side.
2. a kind of according to claim 1 SF
6Gas-insulated testing transformer outlet structure is characterized in that: described first isolating switch and second isolating switch adopt SF
6Gas isolated metal shell enclosed switch.
3. a kind of according to claim 1 SF
6Gas-insulated testing transformer outlet structure, it is characterized in that: described first isolating switch is identical with the second isolating switch structure, all comprise moving contact and fixed contact, the inner scroll bar drive mechanism that adopts of moving contact, gear parts links to each other with the isolating switch rotating part by insulated tension pole.
4. a kind of according to claim 1 SF
6Gas-insulated testing transformer outlet structure is characterized in that: described first earthed switch is identical with the second earthed switch structure, is manual manipulation mode all, reaches earth brace by the manual compression spring and partly contacts with the isolating switch moving contact and separate; The earth brace termination is a ball-type, and end portion is connected with earth brace with spring, and end portion can be stretched within the specific limits, guarantees reliably to contact with the isolating switch moving contact.
5. a kind of according to claim 1 SF
6Gas-insulated testing transformer outlet structure is characterized in that: described first earthed switch and the first isolating switch shell are isolated with insulation board, by lead first earthed switch are connected with the first isolating switch shell.
6. a kind of according to claim 1 SF
6Gas-insulated testing transformer outlet structure is characterized in that: described second earthed switch and the second isolating switch shell are isolated with insulation board, by lead second earthed switch are connected with the second isolating switch shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206255088U CN201886882U (en) | 2010-11-25 | 2010-11-25 | Outlet structure of SF6 insulation test transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206255088U CN201886882U (en) | 2010-11-25 | 2010-11-25 | Outlet structure of SF6 insulation test transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201886882U true CN201886882U (en) | 2011-06-29 |
Family
ID=44184430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206255088U Expired - Lifetime CN201886882U (en) | 2010-11-25 | 2010-11-25 | Outlet structure of SF6 insulation test transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201886882U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830332A (en) * | 2012-09-04 | 2012-12-19 | 安徽省电力科学研究院 | Modularized defect simulator for local discharge detection of gas insulated switchgear |
| CN109116220A (en) * | 2017-06-22 | 2019-01-01 | 河南平芝高压开关有限公司 | Withstand test device used for high-voltage switch |
| CN112269109A (en) * | 2020-10-16 | 2021-01-26 | 江苏恒高电气制造有限公司 | Gas insulated transmission line test device and test method |
| 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 |
| CN113917300A (en) * | 2021-10-08 | 2022-01-11 | 江苏安靠智能输电工程科技股份有限公司 | Direct connection device of gas-insulated high-voltage switch and power transformer |
-
2010
- 2010-11-25 CN CN2010206255088U patent/CN201886882U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830332A (en) * | 2012-09-04 | 2012-12-19 | 安徽省电力科学研究院 | Modularized defect simulator for local discharge detection of gas insulated switchgear |
| CN109116220A (en) * | 2017-06-22 | 2019-01-01 | 河南平芝高压开关有限公司 | Withstand test device used for high-voltage switch |
| CN109116220B (en) * | 2017-06-22 | 2021-07-13 | 河南平芝高压开关有限公司 | Withstand voltage test device for high-voltage switch |
| CN112269109A (en) * | 2020-10-16 | 2021-01-26 | 江苏恒高电气制造有限公司 | Gas insulated transmission line test device and test method |
| 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 |
| CN113917300A (en) * | 2021-10-08 | 2022-01-11 | 江苏安靠智能输电工程科技股份有限公司 | Direct connection device of gas-insulated high-voltage switch and power transformer |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |