CN2574270Y - Sulfur hexafluoride gas insulation metal sealed switchgear - Google Patents
Sulfur hexafluoride gas insulation metal sealed switchgear Download PDFInfo
- Publication number
- CN2574270Y CN2574270Y CN 02257628 CN02257628U CN2574270Y CN 2574270 Y CN2574270 Y CN 2574270Y CN 02257628 CN02257628 CN 02257628 CN 02257628 U CN02257628 U CN 02257628U CN 2574270 Y CN2574270 Y CN 2574270Y
- Authority
- CN
- China
- Prior art keywords
- sulfur hexafluoride
- switchgear
- hexafluoride gas
- cable
- casing
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a sulfur hexafluoride gas insulation metal sealed switchgear. The utility model is characterized in that a breaker 7 which is provided with a three position switch is arranged in a gas charging box body 8 which is charged with sulfur hexafluoride gas; through the connection of a gastight outer conical head 4 of a cable, a bus connector 6 and a loop, the gas charging box body 8 is arranged on a base 1 of a cabinet body; the mechanism of the cabinet body, and a control chamber 5 are arranged on the gas charging box body 8 which is a modularized unit. The utility model has the advantages of small volume which is only 60 percents of that of an air insulation switchgear, decreased installation space, little influence of equipment by external environment, and high reliability.
Description
Technical field
The utility model relates to a kind of sulphur hexafluoride (SF
6) Cubicle Gas-Insulated Switchgear, the technical field of genus High-Voltage Electrical Appliances.
Background technology
The existing switchgear that is widely used in 3.6kV ~ 40.5kV three-phase ac power system mostly is air-insulated switchgear.For guarantee between current carrying part and the current carrying part (abbreviation phase and phase) and current carrying part and grounded part (abbreviation phase and ground) between not by voltage breakdown, must guarantee enough air insulation distances.The switchgear that has isolating switch and earthed switch, its circuit breaker, isolating switch and earthed switch must be installed in three different compartments.The volume of switchgear is inevitable bigger, and cost is higher.
Summary of the invention
The purpose of this utility model is the defective at above-mentioned existence, proposes a kind of SF of new Ying's structure
6Cubicle Gas-Insulated Switchgear.Equipment is not affected by the external environment, and reliability height, volume are little, and cost is lower.Technical solution of the present utility model: utilize the outstanding insulation property of SF6, with it as dielectric.Isolating switch and earthed switch are combined into an isolating switch that three service positions are arranged, and it is installed on the insulating support of circuit breaker, form a breaker assembly that has three-station.Breaker assembly is installed in the inflation casing that is filled with SF6 gas.Connect by having the outer conehead of bubble-tight cable, bus tie and loop.The inflation casing is a modular unit, and the switchgear of different Main Wire Connection Scheme has the inflation casing of identical appearance size and interface size.After the inflation casing is installed on the base of cabinet, the mechanism and the control room of cabinet is installed on the inflation casing.Advantage of the present utility model: the high pressure current-carrying part of each functional unit is installed in the sealing metal housing that is filled with high slightly and atmospheric SF6 gas, and equipment is not affected by the external environment, the reliability height.Can under severe environmental conditions such as high humility, high height above sea level, filth, long-term safety move reliably.Its volume only is 60% of an air insulation switchgear, has reduced installing space greatly.
Appended drawings is a structural representation of the present utility model.
Among the figure 1 is base, the 2nd, cable joint, the 3rd, current transformer, the 4th, the outer conehead, the 5th of cable, mechanism and control room, the 6th, bus tie, the 7th, the circuit breaker, the 8th of band three-station, inflation casing, the 9th, shrouding, the 10th, cable vault.
Embodiment
Inflation casing 8 adopts double-decker to be welded by the corrosion resistant plate of 3 millimeters thick, is welded with pressure relief device in the back.With the band three-station circuit breaker 7 pack into the inflation casing 8, the O-ring seals of installing on the hermatic door by circuit breaker seal the inflation casing 8 the inside and outside.The inlet wire side of the circuit breaker 7 of band three-station is connected on the bus tie 6 by copper bar.Bus tie 6 is the side plates that are fixed on inflation casing 8 with pressing plate, and between is equipped with O-ring seals; The outlet side also is connected on the outer conehead 4 of cable by copper bar.The outer conehead 4 of cable is fixed on the inflation casing 8 with pressing plate equally, and between is equipped with O-ring seals.Current transformer 3 is enclosed within on the outer conehead 4 of cable, the outer conehead 4 of cable joint 2 and cable is connected.The inflation casing of installing with upper-part 8 is placed in the cable vault 10, and fastening with screw.Cable vault 10 is assembled by the bent plate of aluminizing zine plate making.Mechanism and control room 5 usefulness screws are installed on the base 1, then it are connected with cable vault 10 with inflation casing 8.Shrouding 9 usefulness screws are installed on base 1 and the inflation casing 8.
The utility model is made up of inflation casing 8, mechanism and functional units such as control room 5, base 1 and cable vault 10.They can only need to connect with regard to one-tenth switchgear capable of being combined with screw as a separate modular manufacturing.The circuit breaker 7 of band three-station is to close to close, to cut-off the operating current in loop or the functional unit of overload current, and connects, isolates major loop or with loop ground connection by three-station.Bus tie 6 is used for connecting major loop, will inflate casing 8 simultaneously and be isolated from the outside out.The outer conehead 4 of cable is outlet sides of switchgear, and time will be inflated casing 8 and is isolated from the outside out.The inflation casing 8 that the circuit breaker 7 of the outer conehead 4 of cable, bus tie 6, three-station is installed constitutes a high voltage package, and all high pressure current-carrying parts are installed in the inside of inflation casing 8.To inflate casing 8 with vacuum pump and be extracted into vacuum state, charging into SF6 gas again is 1.4bar (absolute pressure) to pressure.With high and atmospheric SF6 gas as dielectric.Current transformer 3 is used for measuring the size of current in loop, and outputs signal to ammeter or control unit.Cable joint 2 is connected with the outer conehead 4 of cable, will go out line current and cause next stage controller switching equipment or user.The circuit breaker 7 of bus tie 6, band three-station, the outer conehead 4 of cable and cable joint 2 have been formed the high pressure galvanic circle.Cable vault 10 is the installing space of cable, is again the mounting base of inflation casing 8.Mechanism and control room 5 are installing spaces of operating mechanism of the circuit breaker 7 of band three-station, also are the installing spaces of the control unit of switchgear.Base 1 is the mounting base in mechanism and control room 5, also is used for sealing cable vault 10.Shrouding 9 is hermatic doors of switchgear back, prevents that foreign matter from entering switchgear inside.Because pressure relief device is welded on the back of inflation casing 8, shrouding 9 forms the passage that pressure discharges when inflating casing 8 because of the explosion of internal fault pressure relief device simultaneously.
Claims (2)
1, a kind of sulfur hexafluoride gas-insulating metal enclosed switchgear, the circuit breaker (7) that it is characterized in that having three-station are installed in the inflation casing (8) that is filled with sulfur hexafluoride gas; Connect by having the outer conehead (4) of bubble-tight cable, bus tie (6) and loop, inflation casing (8) is installed on the base (1) of cabinet, and the mechanism of cabinet and control room (5) are installed on the inflation casing (8).
2, a kind of sulfur hexafluoride gas-insulating metal enclosed switchgear according to claim 1, it is characterized in that inflating casing is a modular unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02257628 CN2574270Y (en) | 2002-10-08 | 2002-10-08 | Sulfur hexafluoride gas insulation metal sealed switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02257628 CN2574270Y (en) | 2002-10-08 | 2002-10-08 | Sulfur hexafluoride gas insulation metal sealed switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2574270Y true CN2574270Y (en) | 2003-09-17 |
Family
ID=33725532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02257628 Expired - Fee Related CN2574270Y (en) | 2002-10-08 | 2002-10-08 | Sulfur hexafluoride gas insulation metal sealed switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2574270Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841135A (en) * | 2010-03-15 | 2010-09-22 | 常州赛尔克瑞特电气有限公司 | Single-phase bipolar air insulated switchgear |
| CN102280833A (en) * | 2011-06-09 | 2011-12-14 | 江苏东源电器集团股份有限公司 | 40.5 KV outdoor Gas Insulated Switchgear (GIS) |
| CN102361247A (en) * | 2011-06-09 | 2012-02-22 | 江苏东源电器集团股份有限公司 | Split-type gas insulated switchgear |
| CN101834413B (en) * | 2009-03-13 | 2012-09-05 | 扬州北辰电气设备有限公司 | Gas chamber of aeration cabinet |
| CN103441440A (en) * | 2013-06-28 | 2013-12-11 | 广西银河迪康电气有限公司 | Pumping debugging supporting frame of relay protection device of ring main unit |
| CN105229879A (en) * | 2014-04-29 | 2016-01-06 | 三菱电机株式会社 | Gas-insulated switchgear |
| CN106710958A (en) * | 2017-02-15 | 2017-05-24 | 江苏森源电气股份有限公司 | Circuit breaker and cubicle type gas insulated switchgear-matched arrangement structure |
-
2002
- 2002-10-08 CN CN 02257628 patent/CN2574270Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834413B (en) * | 2009-03-13 | 2012-09-05 | 扬州北辰电气设备有限公司 | Gas chamber of aeration cabinet |
| CN101841135A (en) * | 2010-03-15 | 2010-09-22 | 常州赛尔克瑞特电气有限公司 | Single-phase bipolar air insulated switchgear |
| CN101841135B (en) * | 2010-03-15 | 2012-04-18 | 常州赛尔克瑞特电气有限公司 | Single-phase bipolar air insulated switchgear |
| CN102280833A (en) * | 2011-06-09 | 2011-12-14 | 江苏东源电器集团股份有限公司 | 40.5 KV outdoor Gas Insulated Switchgear (GIS) |
| CN102361247A (en) * | 2011-06-09 | 2012-02-22 | 江苏东源电器集团股份有限公司 | Split-type gas insulated switchgear |
| CN102361247B (en) * | 2011-06-09 | 2013-01-02 | 江苏东源电器集团股份有限公司 | Split-type gas insulated switchgear |
| CN102280833B (en) * | 2011-06-09 | 2013-12-11 | 江苏东源电器集团股份有限公司 | 40.5 KV outdoor Gas Insulated Switchgear (GIS) |
| CN103441440A (en) * | 2013-06-28 | 2013-12-11 | 广西银河迪康电气有限公司 | Pumping debugging supporting frame of relay protection device of ring main unit |
| CN105229879A (en) * | 2014-04-29 | 2016-01-06 | 三菱电机株式会社 | Gas-insulated switchgear |
| CN105229879B (en) * | 2014-04-29 | 2018-05-29 | 三菱电机株式会社 | Gas-insulated switchgear |
| CN106710958A (en) * | 2017-02-15 | 2017-05-24 | 江苏森源电气股份有限公司 | Circuit breaker and cubicle type gas insulated switchgear-matched arrangement structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |