CN201638736U - Single-pole two-step action-type earthing switch - Google Patents
Single-pole two-step action-type earthing switch Download PDFInfo
- Publication number
- CN201638736U CN201638736U CN2010201695819U CN201020169581U CN201638736U CN 201638736 U CN201638736 U CN 201638736U CN 2010201695819 U CN2010201695819 U CN 2010201695819U CN 201020169581 U CN201020169581 U CN 201020169581U CN 201638736 U CN201638736 U CN 201638736U
- Authority
- CN
- China
- Prior art keywords
- base
- ground connection
- connection cutter
- cutter pipe
- step action
- 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
Links
- 239000012212 insulator Substances 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 abstract description 2
- 241001508691 Martes zibellina Species 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005570 vertical transmission Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B5/00—Non-enclosed substations; Substations with enclosed and non-enclosed equipment
- H02B5/01—Earthing arrangements, e.g. earthing rods
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The utility model discloses a single-pole two-step action-type earthing switch comprising three single poles which have same structures and can be synchronously operated through electric linkage; each single pole comprises a static contact (1), an equalizing ring (2), a support insulator (3), an earthing knife tube (5), a base (6), a motor operation mechanism (7) and a foundation frame (8). The single-pole two-step action-type earthing switch has the characteristics of simple structure, sable electrical performance, stable and reliable action, small switching-on impact, good anti-corrosion performance, long service life, and the like.
Description
Technical field
The utility model relates to the earthed switch in a kind of 330kV high-voltage electric power system, a kind of specifically single-column two-step action type ground switch.
Background technology
Along with the development of domestic power technology, the increase of net capacity is taken up an area of in order to reduce the transmission of electricity corridor, adopts same tower double back transmission line to become the development trend of China's trunk rack.Same tower double back transmission line is when one backhauls another time of row maintenance, because Electrostatic Coupling and electromagnetic coupled effect between two back transmission lines, in the maintenance loop, will produce induced voltage and induced current, operating personnel's personal safety and the equipment that is overhauling will be worked the mischief.For guaranteeing reliability of operation and fail safe, the earthed switch of earthed switch that uses on the circuit and isolating switch attaching must have the ability of opening and closing induction current.And when maintenance is in order to ensure maintainer's safety, high-voltage electrical equipments such as high voltage bus, circuit breaker, instrument transformer, isolating switch need carry out reliable ground, requirement to earthed switch is more rigorous, divide-shut brake is unreliable, problems such as impact is big, and structural design is unreasonable become the hidden danger that influences the earthed switch safe handling.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of single-column two-step action type ground switch, and stable action is reliable, and the impact of closing a floodgate is little, and Corrosion Protection is good, and the ability of good opening and closing induction current is arranged.
For achieving the above object, the technical solution adopted in the utility model is as follows:
Comprise that structure is identical, three one poles by electric-linked realization simultaneous operation, each one pole includes fixed contact, grading ring, post insulator, ground connection cutter pipe, base, electric motor operating mechanism and foundation frame, foundation frame is fixed in ground, the foundation frame top is set with base, the motor operating mechanism is fixedly set in a side of foundation frame, and be connected with base, ground connection cutter pipe is arranged at a side of base by the cross-arm rotating shaft, the end of ground connection cutter pipe is provided with slide block, one side of base is provided with the groove that matches with slide block, fanning strip is embedded in the groove, the top of ground connection cutter pipe is provided with moving contact, be connected by soft conductive strips between base and the ground connection cutter pipe, base top is set with post insulator, is set with fixed contact on the post insulator, and the both sides of fixed contact are respectively arranged with grading ring.
Described fixed contact fingertip is annular external pressure spring touch finger structure.
Soft conductive strips between described base and the ground connection cutter pipe are the zinc-plated soft conductive strips of copper.
Described ground connection cutter pipe end is provided with weight.
Described ground connection cutter pipe adopts circular aluminum pipe.
The utility model drives divide-shut brake by electric motor operating mechanism, and fanning strip is embedded in the groove of slide block, the guiding that is used to move, rotatablely moving and vertical motion two-step action mode when realizing the utility model folding lock; At ground connection cutter pipe end weight is installed, can in ground connection cutter pipe motion process, plays the effect of equilibrant force, thereby make switching manipulation power little; Adopt plug-in type to close a floodgate between moving contact and the fixed contact, impacts for a short time, and contact closely, and through-current capability is stablized; Fixed contact adopts annular external pressure spring touch finger structure, makes feed motion steadily reliable; Ground connection cutter pipe adopts circular aluminum pipe, and area of dissipation is big; Soft conductive strips adopt the zinc-plated soft conductive strips of copper, have improved the electric property of switch.
To sum up, the utlity model has simple and reasonable, divide-shut brake impact little, stable action reliable, the characteristics of excellent electrical properties, easy to operate, safety durable.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the A-A cutaway view among Fig. 1.
Embodiment
As depicted in figs. 1 and 2, the utility model comprises three one poles, the foundation frame 8 of each one pole is installed on the basis, ground, foundation frame 8 tops are set with base 6, motor operating mechanism 7 is fixedly set in a side of foundation frame 8, and be connected with the connecting lever of base 6 by vertical transmission tube, ground connection cutter pipe 5 adopts circular aluminum pipe, be arranged at a side of base 6 by cross-arm rotating shaft 10, the end of ground connection cutter pipe 5 is provided with slide block 12 and weight 4, one side of base 6 is provided with the groove that matches with slide block 12, fanning strip 13 set with groove in, the top of ground connection cutter pipe 5 is provided with moving contact 14, be connected by the zinc-plated soft conductive strips 11 of copper between base 6 and the ground connection cutter pipe 5, base 6 tops are set with post insulator 3, are set with fixed contact 1 on the post insulator 3, the both sides of fixed contact 1 are respectively arranged with grading ring 2, and described fixed contact 1 fingertip is annular external pressure spring touch finger structure.
The sub-switching operation process in contrast, motor operating mechanism 7 drives cross-arm rotating shaft 10 reverse rotations by joint, vertical drive link, base four connecting rods, thereby make ground connection cutter pipe 5 pass through the slip elder generation of slide block 12 in groove rectilinear motion straight down, make moving contact 14 withdraw from fixed contact 1, in by fanning strip 13 drive ground connection cutter pipes 5 perpendiculars, move in a circle again, get back to horizontal separating brake position behind the half-twist, form apparent vertical fracture with the fixed contact 1 of top.
Claims (5)
1. single-column two-step action type ground switch, comprise that structure is identical, three one poles by electric-linked realization simultaneous operation, it is characterized in that, each one pole includes fixed contact (1), grading ring (2), post insulator (3), ground connection cutter pipe (5), base (6), electric motor operating mechanism (7) and foundation frame (8), foundation frame (8) is fixed in ground, foundation frame (8) top is set with base (6), motor operating mechanism (7) is fixedly set in a side of foundation frame (8), and be connected with base (6), ground connection cutter pipe (5) is arranged at a side of base (6) by cross-arm rotating shaft (10), the end of ground connection cutter pipe (5) is provided with slide block (12), one side of base (6) is provided with the groove that matches with slide block (12), fanning strip (13) set with groove in, the top of ground connection cutter pipe (5) is provided with moving contact (14), be connected by soft conductive strips (11) between base (6) and the ground connection cutter pipe (5), base (6) top is set with post insulator (3), be set with fixed contact (1) on the post insulator (3), the both sides of fixed contact (1) are respectively arranged with grading ring (2).
2. single-column two-step action type ground switch according to claim 1 is characterized in that: described fixed contact (1) fingertip is annular external pressure spring touch finger structure.
3. single-column two-step action type ground switch according to claim 1 is characterized in that: the soft conductive strips (11) between described base (6) and the ground connection cutter pipe (5) are the zinc-plated soft conductive strips of copper.
4. single-column two-step action type ground switch according to claim 1 is characterized in that: described ground connection cutter pipe (5) end is provided with weight (4).
5. single-column two-step action type ground switch according to claim 1 is characterized in that: described ground connection cutter pipe (5) is circular aluminum pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201695819U CN201638736U (en) | 2010-04-21 | 2010-04-21 | Single-pole two-step action-type earthing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201695819U CN201638736U (en) | 2010-04-21 | 2010-04-21 | Single-pole two-step action-type earthing switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201638736U true CN201638736U (en) | 2010-11-17 |
Family
ID=43083241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201695819U Expired - Fee Related CN201638736U (en) | 2010-04-21 | 2010-04-21 | Single-pole two-step action-type earthing switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201638736U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124104A (en) * | 2013-04-25 | 2014-10-29 | 国家电网公司 | Earthing switch with capability of switching induced current |
| CN112151297A (en) * | 2020-09-29 | 2020-12-29 | 国网河南省电力公司经济技术研究院 | Spliced external hanging type bus grounding switch based on bus post insulator |
-
2010
- 2010-04-21 CN CN2010201695819U patent/CN201638736U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124104A (en) * | 2013-04-25 | 2014-10-29 | 国家电网公司 | Earthing switch with capability of switching induced current |
| CN104124104B (en) * | 2013-04-25 | 2016-08-03 | 国家电网公司 | A kind of earthed switch with opening and closing induction current ability |
| CN112151297A (en) * | 2020-09-29 | 2020-12-29 | 国网河南省电力公司经济技术研究院 | Spliced external hanging type bus grounding switch based on bus post insulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20110421 |