CN201430103Y - Single-post single-arm vertical retractable outdoor three-phase high-voltage alternating-current isolating switch - Google Patents
Single-post single-arm vertical retractable outdoor three-phase high-voltage alternating-current isolating switch Download PDFInfo
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- CN201430103Y CN201430103Y CN2009200268062U CN200920026806U CN201430103Y CN 201430103 Y CN201430103 Y CN 201430103Y CN 2009200268062 U CN2009200268062 U CN 2009200268062U CN 200920026806 U CN200920026806 U CN 200920026806U CN 201430103 Y CN201430103 Y CN 201430103Y
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Abstract
The utility model discloses a single-post single-arm vertical retractable outdoor three-phase high-voltage alternating-current isolating switch, which relates to an outdoor isolating switch in an electric power system. The isolating switch comprises three monopoles, each of which comprises a steel bracket, a base, a post insulator, a rotary insulator, a pedestal, an earthing switch blade and a main switch blade, the main switch blade is connected with an electric operating mechanism through the rotary insulator, the base and a vertical driving link rod, the earthing switch blade is connected with a manual operating mechanism through an earthing switch blade-driving link rod, the three monopoles are connected together by a horizontal driving rod, and can be synchronously operated, a main switch blade moving contact is of an externally assembled clamp type contact structure, the root of which is hinged with a moving contact holder, the middle of the moving contact is hinged with a supporting piece II through an outside tension spring and a supporting piece I, the earthing switch blade is of a counterweighted one-step action type structure, and the earthing moving contact is of a self-operated structure. The isolating switch has the advantages of stable and reliable action, low switching impact, high current carrying stability, corrosion resistance and long service life.
Description
One, technical field
The utility model relates to the isolating switch in a kind of electric power system, the telescopic outdoor high-voltage alternating current isolating switch of the vertical fracture of specifically a kind of single-column.
Two, background technology
Isolating switch is one of capital equipment in the high-tension power transmission and transformation equipment, and outdoor high-voltage isolating switch is owing to structural reason at present, and poor stability circulates; Dynamic and static contact impacts bigger when closing a floodgate, and action stability is poor, brings difficulty to the operator; The combined floodgate poor reliability; Corrosion Protection is relatively poor, and useful life is short.
Three, summary of the invention
It is reliable that the purpose of this utility model provides a kind of stable action, and the impact of closing a floodgate is little, and through-flow stability is high, the isolating switch that anticorrosion can be good.
The technical scheme that its technical problem that solves the utility model adopts is:
The vertical telescopic outdoor three-phase high-voltage AC isolation switch of a kind of single-column single armed comprises three one poles 1, and each single-stage comprises post insulator, rotating insulated son, ground connection fixed contact, operator fixed contact, main switch cutter moving contact, ground connection plug-in strip, base; Post insulator, rotating insulated son all are arranged on the base top, the ground connection fixed contact is arranged on the pedestal side, the operator moving contact is arranged on the post insulator top and links to each other with rotating insulated son, the flange shaft that the operator operating mechanism drives on the base is rotated, thereby the driven rotary insulator rotates, and the divide-shut brake action is carried out in the moving operator motion of rotating insulated subband; The ground connection plug-in strip is installed on the base, and the base below is provided with ground cutter kinematic link, and it drives the action of ground connection cutter by transmission crank arm, and the main switch cutter of described three single-stage switches is the single armed telescopic structure, and it comprises contact tube and following contact tube; The hinged clamp-type moving contact that is provided with in the upper end of last pipe fitting, the end of moving contact is provided with the rectangle fingertip, and the outside of moving contact is provided with strutting piece, is provided with the compression spring in the strutting piece.
The gear box top shell of contact tube end is two circular arcs under the described main switch cutter, and two arc transition places are provided with the 8mm plane.
The contact tube of contact tube is with by fixedly being flexible coupling with the pedestal terminal block and is connected under the main switch cutter, and last contact tube is welding with the movable contact headstock of operator moving contact, and conductive contact surfaces is taked silver-plated processing, and last contact tube, following contact tube all adopt anodized.
The pedestal avris is provided with cushion pad, and cushion pad is fixed on the pedestal side by elastic steel sheet.
The accessory of the motivation transfer motion part of pedestal comprises support component, bent plate, pedestal axis, connecting rod, rotating insulated sub-axis connecting lever and rotary flange, and these a little accessories all adopt high-intensity steel-casting.
The fingertip of described operator moving contact is a high resiliency copper alloy material.
Two flat drive links of operator water are set between three single-stages, and horizontal drive link is fixed by U-bolt and four joints.
The band that fixedly is flexible coupling that contact tube connects with pedestal under the described main switch cutter adopts the fine aluminium material.
Described base adopts adjustable, and the ground connection plug-in strip adopts directly swings the formula outdoor high voltage AC earthing switch.
Main switch cutter moving contact comprises pipe assembling, pipe assembling down, pedestal assembling, the assembling of main switch cutter fixed contact.The pedestal of main switch cutter is installed in the upper end of post insulator, rotating insulated son, and the lower end then is installed on respectively on the porcelain vase mounting panel and bearing pedestal of base.
Adopt contact tube to adopt Welding Structure, fingertip was installed by former inside and is changed to present mechanism form, fingertip assembles complete naked leakage in the contact base outside, no longer stretch into contact tube inside, convenient to the adjusting change of clamping force like this, in this structurally waterproof performance than before old-fashioned structure have greatly improved, can prevent reliably that sleet from entering.Conductive contact surfaces is silver-plated, conducts electricity very well, and through-current capability is strong, and every layer be flexible coupling and all pass through anodized, and the hanging net operation of guaranteeing to be flexible coupling does not have corrosion
Above-mentioned ground cutter is for directly swinging the formula outdoor high voltage AC earthing switch, and the ground connection moving contact adopts self-operated type mechanism, simple and beautiful structure, and operating physical force is little, reliable in action.The fingertip treatment process has adopted the special processing mode, has improved the through-current capability of fingertip, has reduced contact resistance, and outside employing spring compression, and it is reliable fully to have guaranteed to close a floodgate; Base adopts four screw rod supports, makes the combined floodgate of main switch cutter impact the concussion decay that changes screw rod into, has effectively reduced to close a floodgate and has impacted; Contact tube changed the welded type contact tube into by former assembled, had guaranteed the through-flow stability of contact tube.
The plane that the gear box top increases, can effectively improve temperature compensation, be the parts unsettled situation of closing position that phenomenon causes of expanding with heat and contract with cold when structure can be improved old-fashioned structure effectively and occurs because of variations in temperature in the bigger area of two season of summer in the winter temperature difference in this, guarantee the stability of closing a floodgate in the big area of the temperature difference.
Four, description of drawings
Fig. 1 is a main TV structure schematic diagram of the present utility model;
Fig. 2 is the top cross-sectional view of Fig. 1;
Fig. 3 is last contact tube structural representation;
Fig. 4 is following contact tube structural representation.
Five, embodiment
The following correlation technique content of not addressing all can adopt or use for reference prior art.
As shown in the figure, the vertical telescopic outdoor three-phase high-voltage AC isolation switch of a kind of single-column single armed, described isolating switch comprises the single-stage switch 1 that three drive links connect, middle single-stage switch is provided with operator operating mechanism 2 and ground cutter operating mechanism 3, and each single-stage switch 1 comprises post insulator 11, rotating insulated sub 12, main switch cutter 13, ground connection plug-in strip 14, base 15; Post insulator 11 is arranged on the base top, the ground connection fixed contact is arranged on pedestal or operator fixed contact side, the operator moving contact is arranged on the post insulator top and links to each other with rotating insulated sub 12, operator operating mechanism 2 driven rotary insulators 12 rotate, thereby rotating insulated sub 12 four of driving operator have drive link 4 motions the carrying out divide-shut brake action of joint; The ground connection plug-in strip is installed on the base, and base all is assembled by hot galvanizing steel parts, the direct and on-the-spot basic fixed by four screw rods.But base mounting panel end face attaching ground connection plug-in strip, other also are installed on the base as running part, mechanical interlocking plate etc.The base below is provided with ground cutter kinematic link, it drives the action of ground connection cutter by transmission crank arm, ground, the vertical drive link of operator respectively cutter operating mechanism, operator operating mechanism connect, the operator operating mechanism, the cutter operating mechanism drive three single-stage switch motions by drive link.
Main switch cutter 13 adopts the single armed telescopic structure, is made up of last pipe contact tube 31, following contact tube 32, pedestal etc.
The hinged clamp-type moving contact that is provided with in upper end on the last pipe conduction 31, the end of moving contact is provided with the rectangle fingertip, and the end of rectangle fingertip is provided with unlimited; The outside of moving contact is provided with the compression spring, and the compression spring is provided with strutting piece I outward, and strutting piece I one end is hinged on movable contact and refers to, the other end is hinged with strutting piece II, and the other end of strutting piece II is hinged with strutting piece III; Contact has long contact-making surface, and contact pressure is produced by the roof pressure trip gear and keeps stable numerical value, and the zone that has electric current to flow through on fingertip and contact all is coated with hard silver.The contact fastening spring of main switch cutter partly adopts the reliable combined floodgate that ensures isolating switch from compression set formula structure, and this construction profile is succinctly attractive in appearance, and is with low cost, simultaneously the performance practicality.In the making process, when the operation insulator drove main transmission connecting lever half-twist in the transmission case, twice contact tube rotated up 90 °, make two moving contacts tightly clamp on fixed contact.When short circuit current passed through, the electromagnetic force that moving contact is subjected under effect of electric field also was a clamping direction, can guarantee optimum performance under the electrodynamic action that short circuit current causes.Main switch cutter moving contact is to adopt the copper pipe material with good and stable elasticity and excellent conducting performance and thermal stability to process; The moving contact fastening spring partly adopts the reliable combined floodgate that ensures isolating switch from compression set formula structure, and under the effect of external force such as wind-force, electric power, isolating switch will remain at good working order.
Described contact tube 32 down comprises gearcase, be provided with pitch wheel axle and tooth bar in the gearcase, the end of tooth bar is fixedly connected with connecting rod, and connecting rod sleeve is provided with the connecting rod cover, the outer spring that is provided with of connecting rod cover, spring lower end are fixed on that connecting rod puts, the upper end is fixed with on the spring and seals.The lower end of connecting rod is connected with joint by swivel nut, and joint connects transmission case.
Following contact tube 32 upper ends connect by gear goes up contact tube 31, is provided with pull bar in the last contact tube 31, and the upper end of pull bar connects the strutting piece III of moving contact.
Contact tube adopts aluminium-alloy pipe high-intensity and that have a high conductivity to make up and down; Be provided with gas formula buffer unit between the two.Adopt welding manner between contact tube and the driving joint.With regard to main conductive circuit, isolating switch has only a breakpoint: i.e. the jaw positions of moving contact and fixed contact of isolating switch.All the other all conductive contact surfaces are fixing contact.The size of contact and the size of contact tube all will be decided on the electric and mechanical performance of equipment, and the zone that has electric current to pass through on dynamic and static all is coated with hard silver.Comprise earthed switch, the element that all electric currents flow through adopts standardized component.When short circuit current passed through, the electric power that contact is subjected under effect of electric field also was a clamping direction, thereby can guarantee optimum performance under the electrodynamic action that is caused by short circuit current; All conductive contact surfaces all are coated with electric force compounded grease, and seal with waterproof gasket cement for the seam crossing of the fixedly contact conducting surface that exposes, and prevent the conductive contact surfaces oxidation and electrochemical corrosion takes place.
The gear box top shell of contact tube end is two circular arcs under the described main switch cutter, and two arc transition places are provided with the 8mm plane.
The operator operating principle: the motor operating mechanism drives rotating insulated son and rotates 90 ° by joint, vertical-connecting rod, base shaft, rotating insulated son links to each other with the rotary flange of pedestal, change the direction of power by four push and pull system that are made of connecting lever, connecting rod, driving down, contact tube rotates in vertical plane.Following contact tube links to each other with gear box, and last contact tube links to each other with bending cast aluminium connecting lever, the gear positive engagement of the rack and pinion case in the following contact tube, and gear drives connecting lever by rotating shaft, does compound motion thereby drive last contact tube with the rotation of following contact tube.When the approaching combined floodgate of isolating switch, make gear box top inclined-plane contact roller and promote roller and move upward along the inclined-plane, thereby pushing drawing rod motion, back-moving spring is compressed, make the parallel clamping fixed contact of fingertip contact tube, then fastening spring is compressed, and keeps fingertip to clamp the suitable force value of fixed contact contact tube, and the motion of closing a floodgate finishes.The sub-switching operation process makes that up and down conducting rod is folding in contrast, is positioned on the pedestal, and forms apparent vertical fracture between fixed contact.The two driven utmost points link to each other with the transmission crank arm that initiatively extremely goes up by transmission crank arm, connecting rod, thereby make the tri-level sync action.
Ground cutter operating principle: people's force mechanisms by connect lever, base shaft, the cutter space four-links drivingly the swivel axle rotate 90 °, drive ground cutter rotates about 90 ° in perpendicular after, the ground connection fixed contact is squeezed into the fingertip gap of ground connection plug-in strip, make the aluminium sheet generation strain of ground connection plug-in strip both sides, clamp the ground connection fixed contact.The sub-switching operation process in contrast, cutter half-twist in perpendicular in ground withdraws from the ground connection fixed contact, gets back to horizontal separating brake position, forms apparent vertical fracture with the ground connection fixed contact of top.Ground connection plug-in strip swing arm is owing to the principle of lever two ends equalising torque, and operating physical force is very little, stable action, and it is reliable to close a floodgate.The two driven utmost points link to each other with the transmission crank arm that initiatively extremely goes up by transmission crank arm, connecting rod, thereby make the tri-level sync action.
Pedestal changed to present commentaries on classics by former aluminum casting and joins the formula structure, running part and current-carrying part are separated, because of the suffered strength of running part bigger, strength that aluminum casting bears in the past is limited, now improving the back structure is that running part is high-intensity ironware or steel-casting, increased the intensity of strutting piece and transmission parts, the independent loop of current-carrying part, prevent the shunting of part parts, current-carrying part adopts fixedly connected, and employing fixedly is flexible coupling through-flow between contact tube and the pedestal, conductive contact surfaces is silver-plated, conduct electricity very well, through-current capability is strong, prevents that effectively the resistance that touches generation because of the current-carrying part virtual connection from increasing.
Flexible joint part adopts pure aluminum material, makes to be flexible coupling in the divide-shut brake process, remains profile attractive in appearance, and keeps good gap between being flexible coupling layer by layer, and the phenomenon that fractures of avoiding being flexible coupling takes place.
The contact tube of contact tube is with by fixedly being flexible coupling with the pedestal terminal block and is connected under the main switch cutter, and last contact tube is welding with the movable contact headstock of operator moving contact, and conductive contact surfaces is taked silver-plated processing, and last contact tube, following contact tube all adopt anodized.The pedestal avris is provided with cushion pad, and cushion pad is fixed on the pedestal side by elastic steel sheet.The accessory of the motivation transfer motion part of pedestal comprises support component, bent plate, pedestal axis, connecting rod, rotating insulated sub-axis connecting lever and rotary flange, and these a little accessories all adopt high-intensity steel-casting.
The fingertip of described operator moving contact is a high resiliency copper alloy material.All steelworks of this isolating switch all adopt hot galvanizing to handle; Adopt hot spray painted zinc to handle to cast iron and steel spare; Rotating shaft and pivot pin to key position all adopt stainless steel material; Silver-plated or the zinc-plated processing of copper piece surface, aluminium matter part adopt anodic oxidation or zinc-plated back exposed surface to spray high corrosion-resistant acrylic acid polyurethane aluminium paint again.By this serial surface treatment, improved the whole resistance to corrosion of product effectively.
But main, the cutter mechanism vertical drive link and the horizontal drive link between three utmost points that are connected with body all adopt the middle single-pole switchs of fabricated construction by the drive link connection of bolt with two ends, two flat drive links of operator water are set between three single-stages, horizontal drive link is fixed by U-bolt and four joints, the drive link at two ends is connected by two single-stage switches of clamping plate and other, all can realize step-less adjustment, cancel on-the-spot welding and join brill, both made things convenient for the on-the-spot installation of user, debugging, dismounting and maintenance, can avoid again because of welding caused corrosion.
Claims (9)
1, the vertical telescopic outdoor three-phase high-voltage AC isolation switch of a kind of single-column single armed comprises three one poles, and each single-stage comprises post insulator, rotating insulated son, ground connection fixed contact, operator fixed contact, main switch cutter moving contact, ground connection plug-in strip, base; Post insulator, rotating insulated son all are arranged on the base top, the ground connection fixed contact is arranged on the pedestal side, the operator moving contact is arranged on the post insulator top and links to each other with rotating insulated son, the flange shaft that the operator operating mechanism drives on the base is rotated, thereby the driven rotary insulator rotates, and the divide-shut brake action is carried out in the moving operator motion of rotating insulated subband; The ground connection plug-in strip is installed on the base, and the base below is provided with ground cutter kinematic link, and it drives the action of ground connection cutter by transmission crank arm, and it is characterized in that: the main switch cutter of described three single-stage switches is the single armed telescopic structure, and it comprises contact tube and following contact tube; The hinged clamp-type moving contact that is provided with in the upper end of last pipe fitting, the end of moving contact is provided with the rectangle fingertip, and the outside of moving contact is provided with strutting piece, is provided with the compression spring in the strutting piece.
2, isolating switch according to claim 1 is characterized in that: the gear box top shell of contact tube end is two circular arcs under the described main switch cutter, and two arc transition places are provided with the 8mm plane.
3, isolating switch according to claim 1, it is characterized in that: the contact tube of contact tube connects by the band that fixedly is flexible coupling with the pedestal terminal block under the main switch cutter, last contact tube is welding with the movable contact headstock of operator moving contact, conductive contact surfaces is taked silver-plated processing, and last contact tube, following contact tube all adopt anodized.
4, isolating switch according to claim 1 is characterized in that: the pedestal avris is provided with cushion pad, and cushion pad is fixed on the pedestal side by elastic steel sheet.
5, isolating switch according to claim 1, it is characterized in that: the accessory of the motivation transfer motion part of pedestal comprises support component, bent plate, pedestal axis, connecting rod, rotating insulated sub-axis connecting lever and rotary flange, and these a little accessories all adopt high-intensity steel-casting.
6, isolating switch according to claim 1 is characterized in that: the fingertip of described operator moving contact is a high resiliency copper alloy material.
7, isolating switch according to claim 1 is characterized in that: two flat drive links of operator water are set between three single-stages, and horizontal drive link is fixed by U-bolt and four joints.
8, isolating switch according to claim 1 is characterized in that: the band that fixedly is flexible coupling that contact tube connects with pedestal under the described main switch cutter adopts the fine aluminium material.
9, isolating switch according to claim 1 is characterized in that: described base adopts adjustable, and the ground connection plug-in strip adopts directly swings the formula outdoor high voltage AC earthing switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200268062U CN201430103Y (en) | 2009-05-31 | 2009-05-31 | Single-post single-arm vertical retractable outdoor three-phase high-voltage alternating-current isolating switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200268062U CN201430103Y (en) | 2009-05-31 | 2009-05-31 | Single-post single-arm vertical retractable outdoor three-phase high-voltage alternating-current isolating switch |
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| Publication Number | Publication Date |
|---|---|
| CN201430103Y true CN201430103Y (en) | 2010-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009200268062U Expired - Fee Related CN201430103Y (en) | 2009-05-31 | 2009-05-31 | Single-post single-arm vertical retractable outdoor three-phase high-voltage alternating-current isolating switch |
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| CN (1) | CN201430103Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983035A (en) * | 2012-11-21 | 2013-03-20 | 正泰电气股份有限公司 | Three phase earthing switch structure driven by duplex pull rods and distributed in I shape |
| CN106679866A (en) * | 2016-11-25 | 2017-05-17 | 云南电网有限责任公司电力科学研究院 | Power disconnector contact finger clamping force detection method and system |
| CN109786168A (en) * | 2017-11-14 | 2019-05-21 | 株式会社东光高岳 | Disconnecting switch |
| CN111525396A (en) * | 2020-05-26 | 2020-08-11 | 广东电网有限责任公司 | Power grid grounding system |
| CN111521873A (en) * | 2020-05-11 | 2020-08-11 | 广东电网有限责任公司 | GW16 type isolating switch loop resistance and measuring method thereof |
| CN111971772A (en) * | 2018-04-11 | 2020-11-20 | Abb电网瑞士股份公司 | Flexible conductor for isolating switch and isolating switch |
| CN112017900A (en) * | 2020-08-31 | 2020-12-01 | 国家电网有限公司 | Isolation switch |
| CN117238706A (en) * | 2023-11-13 | 2023-12-15 | 长春市元尚欣信息科技有限公司 | High-voltage movable isolating switch |
-
2009
- 2009-05-31 CN CN2009200268062U patent/CN201430103Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983035A (en) * | 2012-11-21 | 2013-03-20 | 正泰电气股份有限公司 | Three phase earthing switch structure driven by duplex pull rods and distributed in I shape |
| CN102983035B (en) * | 2012-11-21 | 2015-01-28 | 正泰电气股份有限公司 | Three phase earthing switch structure driven by duplex pull rods and distributed in I shape |
| CN106679866A (en) * | 2016-11-25 | 2017-05-17 | 云南电网有限责任公司电力科学研究院 | Power disconnector contact finger clamping force detection method and system |
| CN109786168A (en) * | 2017-11-14 | 2019-05-21 | 株式会社东光高岳 | Disconnecting switch |
| CN109786168B (en) * | 2017-11-14 | 2023-02-17 | 株式会社东光高岳 | Isolating switch |
| CN111971772A (en) * | 2018-04-11 | 2020-11-20 | Abb电网瑞士股份公司 | Flexible conductor for isolating switch and isolating switch |
| CN111971772B (en) * | 2018-04-11 | 2023-04-11 | 日立能源瑞士股份公司 | Flexible conductor for isolating switch and isolating switch |
| CN111521873A (en) * | 2020-05-11 | 2020-08-11 | 广东电网有限责任公司 | GW16 type isolating switch loop resistance and measuring method thereof |
| CN111521873B (en) * | 2020-05-11 | 2022-05-17 | 广东电网有限责任公司 | Method for measuring loop resistance of GW16 type disconnecting switch static contact |
| CN111525396B (en) * | 2020-05-26 | 2021-10-15 | 广东电网有限责任公司 | Power grid grounding system |
| CN111525396A (en) * | 2020-05-26 | 2020-08-11 | 广东电网有限责任公司 | Power grid grounding system |
| CN112017900A (en) * | 2020-08-31 | 2020-12-01 | 国家电网有限公司 | Isolation switch |
| CN112017900B (en) * | 2020-08-31 | 2022-08-26 | 国家电网有限公司 | Isolation switch |
| CN117238706A (en) * | 2023-11-13 | 2023-12-15 | 长春市元尚欣信息科技有限公司 | High-voltage movable isolating switch |
| CN117238706B (en) * | 2023-11-13 | 2024-02-20 | 河北华能源电力设备有限公司 | High-voltage movable isolating switch |
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| 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: 20100324 Termination date: 20110531 |