CN102255258B - 126-kV cabinet type gas-insulated metal-closed switching equipment - Google Patents
126-kV cabinet type gas-insulated metal-closed switching equipment Download PDFInfo
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- CN102255258B CN102255258B CN201110201880.5A CN201110201880A CN102255258B CN 102255258 B CN102255258 B CN 102255258B CN 201110201880 A CN201110201880 A CN 201110201880A CN 102255258 B CN102255258 B CN 102255258B
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- insulating cylinder
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- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229960000909 sulfur hexafluoride Drugs 0.000 claims abstract description 19
- 229910018503 SF6 Inorganic materials 0.000 claims abstract description 16
- 238000003466 welding Methods 0.000 claims abstract description 8
- 238000003698 laser cutting Methods 0.000 claims abstract description 5
- 230000007704 transition Effects 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 14
- 239000003822 epoxy resin Substances 0.000 claims description 11
- 229920000647 polyepoxide Polymers 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 230000010412 perfusion Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 22
- 239000001307 helium Substances 0.000 description 7
- 229910052734 helium Inorganic materials 0.000 description 7
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 7
- 239000012212 insulator Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000005267 amalgamation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention discloses 126-kV cabinet type gas-insulated metal-closed switching equipment and solves the problems that: the 126-kV cabinet type gas-insulated metal-closed switching equipment in the prior art is large in size; final assembly and check are required in a user field; gas tightness is relatively difficult to guarantee; environmental pollution is easy to occur during switching on or off of an electric main loop by using a sulfur hexafluoride breaker; and pressure resistance capacity is relatively lower. The 126-kV cabinet type gas-insulated metal-closed switching equipment is characterized in that: six compartments have a square box shape formed by laser-cutting and laser-welding non-magnetic stainless steel plates which are 4 mm thick; sulfur hexafluoride gas of which the pressure is 0.1 to 0.2 MPa is filled into all compartments; all compartments realize insulating transition connection by using a disk type bus insulating sleeve component of which the diameter is smaller than 300 mm; a vacuum arc-distinguishing chamber polar column is arranged in a vacuum breaker compartment; and double-sheet splicing buses which realize communication of the main loop are arranged in the six compartments. The 126-kV cabinet type gas-insulated metal-closed switching equipment has the advantages of good gas tightness, high mechanical strength, low manufacturing cost and good environmental benefit, solves the insulating problem under the condition of low gas pressure and improves the operating safety of the equipment.
Description
Technical field
The invention belongs to high voltage electrical apparatus technical field, particularly adopt the cabinet type Cubicle Gas-Insulated Switchgear of a kind of 126kV of vacuum circuit-breaker.
Background technology
In prior art, the Cubicle Gas-Insulated Switchgear of 126kV high-voltage system is cylindrical shape, adopt aluminium sheet to make through argon arc welding, bulky, diameter 1000 millimeter, the inner sulfur hexafluoride breaker that adopts carries out the folding of electric major loop, arc-extinguishing medium is sulfur hexafluoride gas, gas pressure is generally at 0.5 ~ 06MPa, this major diameter aluminum barrel processing and manufacturing difficulty, axial seam place need carry out artificial argon arc welding, air-tightness is difficult to ensure card, easily because of problems of welded quality, cause leakage and the discharge of sulfur hexafluoride gas, cause the device interior even reduction of connecting-disconnecting function of insulating, and then affect the fail safe of equipment operation, in addition, while adopting sulfur hexafluoride breaker to carry out the folding of electric major loop, sulphur hexafluoride can decompose and produce poisonous and hazardous gas under the effect of arc heat effect, under participating in, hydrone also can generate hypertoxic dust, cause environmental pollution, between each compartment, adopt the transition of insulating of the larger-diameter disc insulator of 700 millimeter, mechanical strength a little less than, proof pressure ability also a little less than, because three-phase conductor is embedded in an insulator, this disc insulator will bear phase insulation stress, accelerated the aging of dielectric, also due to bulky, existing equipment need to carry out final assembly and checkout at user scene, and the environment at user scene is poor, scene cannot reach equipment air seal and connect needed environment (General Requirements cleanliness factor is 1000000 grades), after installation, be filled with sulfur hexafluoride gas, to the detection of gas seal property, also can only detect qualitatively, can only detect and whether leak gas, and can not detect the leak rate of gas, testing result is wanted the restriction of examined device sensitivity to a great extent.
Summary of the invention
Problem to be solved by this invention is, overcomes deficiency and defect that prior art exists, by analysis of electric field and structure optimization, provides in manufactory and completes assembly and checkout, adopts the cabinet type Cubicle Gas-Insulated Switchgear of 126kV of vacuum circuit-breaker.
The technology used in the present invention solution comprises cabinet shell, vacuum circuit-breaker compartment, vacuum circuit-breaker driving mechanism, vacuum circuit-breaker driving mechanism conversion equipment, current transformer compartment, cable connects compartment, bus conflux compartment and 2 buses and tri-station isolating switch compartment, cable connect compartment and 2 buses and tri-station isolating switch compartment every indoor location tri-station isolating switch, at cable, connect the outer top installation of the compartment tri-station isolating switch driving mechanism of compartment and 2 buses and tri-station isolating switch compartment, described vacuum circuit-breaker compartment, current transformer compartment, cable connects compartment, bus conflux compartment and 2 buses and tri-station isolating switch compartment totally 6 compartments be independently and the inflation unit of standard, in each compartment, be filled with the sulfur hexafluoride gas of 0.1～0.2MPa, between each compartment, adopting dish formula bus insulating bush assembly to realize insulation transition connects, in described vacuum circuit-breaker compartment, electrode column of vacuum arc extinguishing chamber is installed, in described 6 compartments, be all provided with and realize the double-sheet splicing bus that major loop is communicated with.
Described electrode column of vacuum arc extinguishing chamber comprises shading ring, lower bucking electrode, upper insulating cylinder, lower insulating cylinder and upper leading-out terminal and lower wire end, at upper shading ring and the interconnective position of upper insulating cylinder, upper insulating cylinder and the interconnective position of upper leading-out terminal, upper leading-out terminal and the interconnective position of lower insulating cylinder and lower insulating cylinder and the interconnective position of lower bucking electrode are respectively provided with epoxy resin perfusion point, by epoxy resin, pour into and a little inject pre-mixed epoxy resin and the compound of curing agent, after solidifying at normal temperatures by lower bucking electrode, lower insulating cylinder, upper leading-out terminal, upper insulating cylinder and upper shading ring firmly link together and make pole outer cover, form the insulation system of electrode column of vacuum arc extinguishing chamber, in pole outer cover, assemble vacuum interrupter.
Described double-sheet splicing bus comprise left splicing bus and with the right splicing bus of left splicing bus symmetry, described left splicing bus is connected with attachment screw with right splicing bus both ends, outer surface is smooth circular arc.
The external diameter of described dish formula bus insulating bush assembly is less than 300 millimeters, and 3 dish formula bus insulating bush assemblies are pressed isosceles triangle and arranged, by dish formula sleeve pipe mounting flange, are arranged on the shrouding of each compartment.
Described 6 compartments all adopt the thick non-magnetic rustproof steel plate of 4mm to make square box shape structure through laser cutting and laser welding.
Compared with prior art, the invention has the beneficial effects as follows:
(1) the present invention adopts modularized design, and whole switchgear is comprised of six charging compartments, and each compartment is independently and the unit of standard, requires a plurality of connection plans that go out capable of being combined, thereby reduced manufacturing cost and fabrication cycle according to different.
(2) each inflation unit of the present invention all adopts the thick non-magnetic rustproof steel plate of 4mm to make square box shape structure through laser cutting and laser welding, guaranteed the air-tightness of welding, mechanical strength is guaranteed by the reinforcement on casing, air-tightness is good, and mechanical strength is high, and between gas tank, amalgamation precision is high, be suitable for carrying out helium leak check in helium inspection equipment, improved greatly the control of gas tank leak rate and detection, improved reliability and the fail safe of product, reduced the difficulty of user's operation and maintenance.
(3) the present invention adopts vacuum to cut-off to replace sulphur hexafluoride to cut-off, avoided the generation of poisonous and harmful substance, Combined electrode column of vacuum arc extinguishing chamber is assemblied in pole outer cover vacuum interrupter, flexibly and easily, once self there are quality problems in vacuum interrupter, only need to change vacuum interrupter, outside pole outer cover still can continue to use, and in pole outer cover manufacturing process without any need for mould, simplified the manufacture craft of pole, reduced production cost, by analysis of electric field and the upper lower wire end structure of optimization and increase electric field shielding ring, solved the Insulation Problems when low pressure sulphur hexafluoride.
(4) the present invention adopts diameter to be less than the dish formula sleeve pipe of 300 millimeters and the combining structure replacement disc insulator of silicone rubber pad, and 3 dish formula bus insulating bush assemblies are arranged on the shrouding of each compartment by isosceles triangle layout,
Reduced the volume of Cubicle Gas-Insulated Switchgear, eliminated phase insulation stress, avoided the possibility of phase-to phase fault, reliability and the fail safe of power supply have been improved, and by using the combining structure of dish formula sleeve pipe and silicone rubber pad to realize modularized design, when Installation and Debugging are carried out at user scene, do not relate to the operation of sulfur hexafluoride gas, improved flexibility and the fail safe of products scheme combination, better met the requirement of the various connection plans of user.
(5) the present invention is divided into symmetrical two splicing bus by a phase bus, increased the surface area of bus, thereby improved the ampacity of bus, the needs that connect according to product conduction, symmetrical two splicing bus can be made needed complicated shape, have met the requirement of the little and shape of generatrix complexity of 126KV gases at high pressure insulated switching installation volume.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention,
Fig. 2 is electrode column of vacuum arc extinguishing chamber structural representation of the present invention,
Fig. 3 is double-sheet splicing bus structural representation of the present invention.
In figure:
1. dish formula sleeve pipe mounting flange,
2. cabinet shell,
3. vacuum circuit-breaker compartment,
4. vacuum circuit-breaker driving mechanism,
5. vacuum circuit-breaker driving mechanism conversion equipment,
6. electrode column of vacuum arc extinguishing chamber,
61. lower wire ends,
62. times bucking electrodes,
Leading-out terminal on 63.,
Shading ring on 64.,
Insulating cylinder on 65.,
66. times insulating cylinders
67. vacuum interrupters,
68. epoxy resin perfusion points,
7. branch bus,
The left splicing bus of 7-1.,
The right splicing bus of 7-2.,
7-3. attachment screw,
8. current transformer compartment,
9. current transformer,
10. tri-station isolating switch driving mechanism,
11. cables connect compartment,
12. tri-station isolating switchs,
13. cable inner cone sleeve pipes,
14. dish formula bus insulating bush assemblies,
15. buses and tri-station isolating switch compartment,
The 16. buses compartment that confluxes.
Embodiment
Below in conjunction with accompanying drawing, provide the specific embodiment of the present invention.
As shown in Figure 1, the present invention adopts modularized design, comprise cabinet shell 2, vacuum circuit-breaker compartment 3, vacuum circuit-breaker driving mechanism conversion equipment 5, current transformer compartment 8, be arranged on the current transformer 9 in current transformer compartment 8, cable connects compartment 11, bus conflux compartment 16 and 2 buses and tri-station isolating switch compartment 15, cable connect compartment 11 and 2 buses and tri-station isolating switch compartment 15 every indoor location tri-station isolating switch 12, at cable, connect the outer top installation of the compartment tri-station isolating switch driving mechanism 10 of compartment 11 and 2 buses and three-station compartment 15, realize separating brake and the combined floodgate of tri-station isolating switch, at cable, connect the interior installing cables inner cone of compartment 11 sleeve pipe 13, realize and being connected with outside cable, described vacuum circuit-breaker compartment 3, current transformer compartment 8, cable connects compartment 11, bus conflux compartment 16 and 2 buses and three-station compartment 15 totally 6 compartments be independently and the inflation unit of standard, in each compartment, be filled with the sulfur hexafluoride gas of 0.1～0.2MPa, described 6 compartments all adopt the thick non-magnetic rustproof steel plate of 4mm to make square box shape structure through laser cutting and laser welding, between each compartment, adopting the applicant is disclosed dish formula bus insulating bush assembly in 201020248405.4 patents at application number, realizing insulation transition connects, the external diameter of single dish formula bus insulating bush assembly 14 is less than 300 millimeters, 3 dish formula bus insulating bush assemblies 14 are pressed isosceles triangle and are arranged, by dish formula sleeve pipe mounting flange 1, be arranged on the shrouding of each compartment, replaced original disc insulator, eliminated the phase insulation stress in epoxy resin completely, avoided the possibility of phase-to phase fault, improved the safety and reliability of power supply, in addition, each compartment is independently airtight compartment, at each airtight compartment, be provided with 2 Non-return air valves, can to each airtight compartment, in factory, carry out helium leak check separately, improved the control to equipment leak rate, because the molecular diameter of helium is 1/3 left and right of sulfur hexafluoride gas molecular diameter, and the dynamic viscosity of helium is lower than the dynamic viscosity of sulfur hexafluoride gas, adopt helium leak check greatly to improve the bubble-tight control of gas tank, and realized quantitative detection, helium leak test gas rate is controlled at 5X10
-5mbar * l/s, the quality control of product, without carrying out gas-operated and gas leak detection, when having reduced user's work difficulty, has been improved in (millibar * liter/second) user scene, reduce the discharge of sulfur hexafluoride gas, and then improved fail safe and the environmental benefit of equipment operation.
Electrode column of vacuum arc extinguishing chamber 6 is installed in vacuum circuit-breaker compartment 3, as shown in Figure 2, described electrode column of vacuum arc extinguishing chamber 6 comprises shading ring 64, lower bucking electrode 62, upper insulating cylinder 65, lower insulating cylinder 66 and upper leading-out terminal 63 and lower wire end 61, at upper shading ring 64 and the interconnective position of upper insulating cylinder 65, upper insulating cylinder 65 and the interconnective position of upper leading-out terminal 63, upper leading-out terminal 63 is respectively provided with epoxy resin perfusion point 68 with the interconnective position of lower insulating cylinder 66 and lower insulating cylinder 66 with the interconnective position of lower bucking electrode 62, by epoxy resin, pour into the pre-mixed epoxy resin of a little 68 injections and the compound of curing agent, after being heating and curing by lower bucking electrode 62, lower wire end 61, lower insulating cylinder 66, upper leading-out terminal 63, upper insulating cylinder 65 and upper shading ring 64 firmly link together and make pole outer cover, form the insulation system of electrode column of vacuum arc extinguishing chamber, in pole outer cover, assemble vacuum interrupter 67, described electrode column of vacuum arc extinguishing chamber 6 upper ends are fixed on the upper cover plate of breaker compartment 3, be on the mounting panel of circuit breaker conversion equipment, lower end is electrically connected by conductive sleeve and dish formula sleeve pipe, the present invention is usingd the high-pressure vacuum breaker of single break as the element that cut-offs of major loop, sulfur hexafluoride gas does not participate in cut-offfing of circuit, by the optimization of analysis of electric field and electrode profile, realized the sulfur hexafluoride gas of employing low-pressure (0.1～0.2MPa) as dielectric alternate and relatively, front upper at breaker compartment 3 is installed vacuum circuit-breaker driving mechanism 4, top cover plate at breaker compartment 3, be that the vacuum circuit-breaker driving mechanism conversion equipment 5 being connected with vacuum circuit-breaker driving mechanism 4 is installed on the mounting panel of circuit breaker conversion equipment.
In described 6 compartments, double-sheet splicing bus 7 is all installed, and by these double-sheet splicing bus 7, realize the connection of major loop, as shown in Figure 3, described double-sheet splicing bus 7 comprise left splicing bus 71 and with the right splicing bus 72 of left splicing bus 71 symmetries, described left splicing bus 71 is connected with attachment screw 73 with right splicing bus 72 both ends, and outer surface is smooth circular arc.
Claims (4)
1. the cabinet type Cubicle Gas-Insulated Switchgear of 126kV, comprise cabinet shell (2), vacuum circuit-breaker compartment (3), vacuum circuit-breaker driving mechanism (4), vacuum circuit-breaker driving mechanism conversion equipment (5), current transformer compartment (8), cable connects compartment (11), bus conflux compartment (16) and 2 buses and three-station compartment (15), in each compartment, be filled with the sulfur hexafluoride gas of 0.1～0.2MPa, between each compartment, adopting dish formula bus insulating bush assembly (14) to realize insulation transition connects, electrode column of vacuum arc extinguishing chamber (6) is installed in described vacuum circuit-breaker compartment (3), in described 6 compartments, be all provided with realize double-sheet splicing bus (7) that major loop is communicated with cable connect compartment (11) and 2 buses and tri-station isolating switch compartment (15) every indoor location tri-station isolating switch (12), top installation tri-station isolating switch driving mechanism (10) outside cable connects the compartment of compartment (11) and 2 buses and three-station compartment (15), it is characterized in that, described vacuum circuit-breaker compartment (3), current transformer compartment (8), cable connects compartment (11), bus conflux compartment (16) and 2 buses and three-station compartment (15) totally 6 compartments be independently and the inflation unit of standard, described electrode column of vacuum arc extinguishing chamber (6) comprises shading ring (64), lower bucking electrode (62), upper insulating cylinder (65), lower insulating cylinder (66) and upper leading-out terminal (63) and lower wire end (61), at upper shading ring (64) and the interconnective position of upper insulating cylinder (65), upper insulating cylinder (65) and the interconnective position of upper leading-out terminal (63), upper leading-out terminal (63) is respectively provided with epoxy resin perfusion point (68) with the interconnective position of lower insulating cylinder (66) and lower insulating cylinder (66) with the interconnective position of lower bucking electrode (62), by epoxy resin, pour into point (68) and inject pre-mixed epoxy resin and the compound of curing agent, after solidifying at normal temperatures by lower bucking electrode (62), lower insulating cylinder (66), upper leading-out terminal (63), upper insulating cylinder (65) and upper shading ring (64) firmly link together and make pole outer cover, form the insulation system of electrode column of vacuum arc extinguishing chamber, in pole outer cover, assemble vacuum interrupter (67).
2. the cabinet type Cubicle Gas-Insulated Switchgear of a kind of 126kV according to claim 1, it is characterized in that, described double-sheet splicing bus (7) comprises left splicing bus (71) and the right splicing bus (72) symmetrical with left splicing bus (71), described left splicing bus (71) is connected with right splicing bus (72) attachment screw for both ends (73), and outer surface is smooth circular arc.
3. the cabinet type Cubicle Gas-Insulated Switchgear of a kind of 126kV according to claim 1, it is characterized in that, the external diameter of described dish formula bus insulating bush assembly (14) is less than 300 millimeters, 3 dish formula bus insulating bush assemblies (14) are pressed isosceles triangle and are arranged, by dish formula sleeve pipe mounting flange (1), are arranged on the shrouding of each compartment.
4. the cabinet type Cubicle Gas-Insulated Switchgear of a kind of 126kV according to claim 1, is characterized in that, described 6 compartments all adopt the thick non-magnetic rustproof steel plate of 4mm to make square box shape structure through laser cutting and laser welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110201880.5A CN102255258B (en) | 2011-07-19 | 2011-07-19 | 126-kV cabinet type gas-insulated metal-closed switching equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110201880.5A CN102255258B (en) | 2011-07-19 | 2011-07-19 | 126-kV cabinet type gas-insulated metal-closed switching equipment |
Publications (2)
| Publication Number | Publication Date |
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| CN102255258A CN102255258A (en) | 2011-11-23 |
| CN102255258B true CN102255258B (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110201880.5A Active CN102255258B (en) | 2011-07-19 | 2011-07-19 | 126-kV cabinet type gas-insulated metal-closed switching equipment |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842394B (en) * | 2012-08-22 | 2015-03-25 | 河南平高电气股份有限公司 | Pot-type insulator |
| CN105896354A (en) * | 2016-06-06 | 2016-08-24 | 柳州市海格电气有限公司 | Fabrication method of 500kV SF6 gas insulated metal-enclosed switchgear |
| CN106099713A (en) * | 2016-06-06 | 2016-11-09 | 柳州市海格电气有限公司 | 220kV semi-enclosed sulfur hexafluoride gas-insulating switchgear manufacture method |
| CN105896356A (en) * | 2016-06-06 | 2016-08-24 | 柳州市海格电气有限公司 | Fabrication method of 110kV SF6 gas insulated semi-closed switchgear |
| CN105896355A (en) * | 2016-06-06 | 2016-08-24 | 柳州市海格电气有限公司 | Fabrication method of 220kV SF6 gas insulated metal-enclosed switchgear |
| CN105846338A (en) * | 2016-06-06 | 2016-08-10 | 柳州市海格电气有限公司 | Method for manufacturing 500kV semi-enclosed sulphur hexafluoride insulated switchgear |
| CN106098440A (en) * | 2016-06-06 | 2016-11-09 | 柳州市海格电气有限公司 | 110kV sulfur hexafluoride gas-insulating metal enclosed switch manufacture method |
| CN106329381A (en) * | 2016-10-20 | 2017-01-11 | 莱福士电力电子设备（深圳）有限公司 | Ring main unit |
| CN108988191B (en) * | 2018-09-30 | 2023-06-02 | 聂刚 | Gas-insulated metal-enclosed switchgear |
| CN110601027A (en) * | 2019-10-30 | 2019-12-20 | 广东北江开关厂有限公司 | Uninterrupted double-breaker high-voltage switch cabinet |
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| CN201466552U (en) * | 2009-07-17 | 2010-05-12 | 湖南创业德力西电气有限公司 | Novel indoor metal armored withdrawable switching equipment |
| CN201562906U (en) * | 2009-11-25 | 2010-08-25 | 亚洲电力设备(深圳)有限公司 | Gas-filled high voltage switch equipment |
| CN202167785U (en) * | 2011-07-19 | 2012-03-14 | 沈阳华利能源设备制造有限公司 | 126kV cabinet-type gas-insulated metal-enclosed switch device |
-
2011
- 2011-07-19 CN CN201110201880.5A patent/CN102255258B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201466552U (en) * | 2009-07-17 | 2010-05-12 | 湖南创业德力西电气有限公司 | Novel indoor metal armored withdrawable switching equipment |
| CN201562906U (en) * | 2009-11-25 | 2010-08-25 | 亚洲电力设备(深圳)有限公司 | Gas-filled high voltage switch equipment |
| CN202167785U (en) * | 2011-07-19 | 2012-03-14 | 沈阳华利能源设备制造有限公司 | 126kV cabinet-type gas-insulated metal-enclosed switch device |
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| CN102255258A (en) | 2011-11-23 |
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Denomination of invention: 126-kV cabinet type gas-insulated metal-closed switching equipment Effective date of registration: 20171227 Granted publication date: 20140129 Pledgee: Shengjing bank Limited by Share Ltd. in Shenyang city Shenhe branch Pledgor: SHENYANG HUALI ENERGY EQUIPMENT MANUFACTURING Co.,Ltd. Registration number: 2017210000028 |
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Date of cancellation: 20200609 Granted publication date: 20140129 Pledgee: Shengjing bank Limited by Share Ltd. in Shenyang city Shenhe branch Pledgor: SHENYANG HUALI ENERGY EQUIPMENT MANUFACTURING Co.,Ltd. Registration number: 2017210000028 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
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Denomination of invention: 126-kV cabinet type gas-insulated metal-closed switching equipment Effective date of registration: 20200610 Granted publication date: 20140129 Pledgee: Shengjing bank Limited by Share Ltd. in Shenyang city Shenhe branch Pledgor: SHENYANG HUALI ENERGY EQUIPMENT MANUFACTURING Co.,Ltd. Registration number: Y2020210000025 |
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Date of cancellation: 20230606 Granted publication date: 20140129 Pledgee: Shengjing bank Limited by Share Ltd. in Shenyang city Shenhe branch Pledgor: SHENYANG HUALI ENERGY EQUIPMENT MANUFACTURING Co.,Ltd. Registration number: Y2020210000025 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: A 126kV cabinet type gas insulated metal enclosed switchgear Effective date of registration: 20230607 Granted publication date: 20140129 Pledgee: Shengjing bank Limited by Share Ltd. in Shenyang city Shenhe branch Pledgor: SHENYANG HUALI ENERGY EQUIPMENT MANUFACTURING Co.,Ltd. Registration number: Y2023210000138 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20140129 Pledgee: Shengjing bank Limited by Share Ltd. in Shenyang city Shenhe branch Pledgor: SHENYANG HUALI ENERGY EQUIPMENT MANUFACTURING Co.,Ltd. Registration number: Y2023210000138 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A 126kV cabinet type gas insulated metal enclosed switchgear Granted publication date: 20140129 Pledgee: Shengjing bank Limited by Share Ltd. in Shenyang city Shenhe branch Pledgor: SHENYANG HUALI ENERGY EQUIPMENT MANUFACTURING Co.,Ltd. Registration number: Y2024210000050 |