CN201134363Y - Stationary contact component of isolation switch - Google Patents
Stationary contact component of isolation switch Download PDFInfo
- Publication number
- CN201134363Y CN201134363Y CNU2007201910739U CN200720191073U CN201134363Y CN 201134363 Y CN201134363 Y CN 201134363Y CN U2007201910739 U CNU2007201910739 U CN U2007201910739U CN 200720191073 U CN200720191073 U CN 200720191073U CN 201134363 Y CN201134363 Y CN 201134363Y
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- China
- Prior art keywords
- static contact
- contact finger
- finger
- isolation switch
- switch assembly
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- Expired - Fee Related
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Abstract
The utility model provides a disconnecting switch static contact component which comprises a connecting plate, an upper static contact finger and a lower static contact finger, wherein the upper static contact finger and the lower static contact finger are located on the connecting plate facing to each other, the upper static contact finger and the lower static contact finger are respectively provided with a contact face contacted with a to-be-contacted movable contact lever, the disconnecting switch static contact component also comprises a pressure regulator which comprises a spring and a spring force regulating part, the spring acts on one of the upper static contact finger and the lower static contact finger, and the spring force regulating part contacts with the spring and can regulate the force acted on the contact finger by the spring. Therefore, the contact pressure between the upper and lower static contact fingers and the movable contact lever can be regulated, thereby reducing pressure drop loss of contact resistance, reducing contact heating and increasing work reliability.
Description
Technical field
The utility model relates to a kind of static contact isolation switch assembly, and this static contact isolation switch assembly can use the place that is connected at the fixed contact of the similar electric components such as high voltage isolator of electric locomotive, electric motor car group and movable feeler lever.
Background technology
The high-voltage electrical equipment of locomotive is the visual plant that guarantees the normal operation of vehicle.Wherein, the high voltage isolator critical component that is absolutely necessary.At present, the movable feeler lever of known electric locomotive high voltage isolator and fixed contact be connected the structure that mostly adopts as shown in Figure 6, wherein, Reference numeral 1 ' be movable feeler lever, Reference numeral 2 ' be fixed contact, Reference numeral 21 ' be the fixed contact contact chip.Described fixed contact contact chip 21 ' material adopt QSn6.5-0.1.Be characterized in that manufacturing process is simple, but this known configurations is when reality connects, described fixed contact contact chip 21 ' and movable feeler lever 1 ' between contact pressure can not adjust, cause when switch motion, contact pressure between movable feeler lever and the contact chip reduces, and the contact resistance between movable feeler lever and the fixed contact is big, when using, reality generates heat easily, the long-term use then caused heat ageing easily, and then contact condition is further worsened, to cause faults such as heating scaling loss when serious, so be not suitable for using in the long occasion of big electric current.
The utility model content
The purpose of this utility model provides a kind of static contact isolation switch assembly that can overcome the problems referred to above, and this static contact isolation switch assembly can be regulated the contact pressure between fixed contact and the movable feeler lever.Owing to can regulate contact pressure between fixed contact and the movable feeler lever according to behaviour in service, therefore can improve contact condition, improve the handling capacity of pick-up current effectively, and then reduce contact resistance consumption, strengthen the reliability of whole isolated switch.
In order to realize the purpose of this utility model, comprise connecting plate and first static contact finger that faces with each other and second static contact finger that are positioned on this connecting plate according to static contact isolation switch assembly of the present utility model, described first static contact finger and described second static contact finger have link respectively, and with the contact jaw of the mutual face of movable feeler lever to be contacted contact; Wherein, one of them of described first static contact finger and second static contact finger is fixedly mounted on a plate and is fixing static contact finger, another static contact finger is adjustable static contact finger, which is provided with pressure-regulating device, this pressure-regulating device comprises: spring, an end of described spring act on the described adjustable static contact finger; And the spring force regulating part, described spring force regulating part and described spring connect.
According to preferred scheme, between described fixedly static contact finger and adjustable static contact finger, have supporting seat, described supporting seat is connected with described connecting plate, and the link of described fixedly static contact finger is fixed between described supporting seat and the described connecting plate; The link of described adjustable static contact finger is installed in the top of described supporting seat; Described supporting seat convexes with limiting section at the fixing leading section between static contact finger and the adjustable static contact finger.
According to further preferred scheme, described spring force regulating part comprises screw rod and nut, and wherein said screw rod is installed on the described supporting seat and runs through described adjustable static contact finger, and described spring and described nut are installed on the part of stretching out of described screw rod.
According to preferred scheme further, described supporting seat is provided with support plate, and the link of described adjustable static contact finger is arranged on the described support plate; Described spring force regulating part comprises screw rod and nut, and wherein said screw rod is installed on the described support plate and runs through described adjustable static contact finger, and described spring and described nut are installed on the part of stretching out of described screw rod.
Static contact isolation switch assembly of the present utility model can also comprise opening apart from adjusting device of distance between the contact-making surface that is used to regulate described fixedly static contact finger and adjustable static contact finger, this is opened apart from adjusting device and comprises out that this is opened apart from adjusting bolt and passes described adjustable static contact finger and be resisted against described support plate or supporting seat apart from adjusting bolt.
In static contact isolation switch assembly of the present utility model, described supporting seat or support plate are provided with non-magnetic shim, and the stiff end rear portion of described adjustable static contact finger is concaved with the non-magnetic shim seat with the corresponding cooperation of described non-magnetic shim.
Has the independent adjustable static contact finger that is provided with more than two on the described supporting seat of static contact isolation switch assembly of the present utility model or the support plate.
Distance between the described fixedly static contact finger of static contact isolation switch assembly of the present utility model and the contact jaw of adjustable static contact finger forms approaching relatively contact-making surface less than the distance between the link of this two fingertip.And the link of described adjustable static contact finger be connected flexible cord and be connected, this connection flexible cord connects described fixedly static contact finger and described connecting plate.
Static contact isolation switch assembly of the present utility model has the technique effect of marked improvement.Because the contact pressure between fixed contact and the movable feeler lever can be regulated, and it is hereby ensured that the contact resistance between the two is less, thereby guarantees that contact condition is good.Because for face contact, and first and second static contact fingers all contact with the movable contact pole face between fixed contact and the movable feeler lever, so make conductive contact surfaces amass increase, the enhancing of electric current handling capacity.The set opening and closing operations that helps fixed contact and movable feeler lever apart from adjusting device of opening.By the first and second static contact finger Construction integrations, perhaps the two is constructed separately but connects second static contact finger and connecting plate by connecting flexible cord, can reduce the intermediate link that conduction connects, and then reduce middle heating loss.Static contact isolation switch modular construction according to the utility model structure is reasonable, convenient for maintaining.
Description of drawings
Fig. 1 is the schematic perspective view that the static contact isolation switch assembly of preferred implementation of the present utility model reaches the movable feeler lever that cooperates with it;
Fig. 2 A is that the master of the static contact isolation switch assembly of preferred implementation of the present utility model looks schematic diagram;
Fig. 2 B is the schematic side view of the static contact isolation switch assembly of preferred implementation of the present utility model;
Fig. 3 A is that the master of fingertip down looks schematic diagram;
Fig. 3 B is the schematic top plan view of following fingertip;
Fig. 4 A is that the master of support plate looks schematic diagram;
Fig. 4 B is the schematic top plan view of support plate;
Fig. 5 A is that the master who goes up fingertip looks schematic diagram;
Fig. 5 B is the schematic top plan view that goes up fingertip;
Fig. 6 is the movable feeler lever of known isolating switch and the structural representation of fixed contact.
Description of reference numerals:
1, static contact isolation switch assembly;
2, movable feeler lever;
3, connecting plate;
4, go up static contact finger; 41, contact plane; 42, open apart from adjusting screwed hole; 43, screw rod patchhole; 44, connecting thread hole; 45, non-magnetic shim seat;
6, following static contact finger; 61, contact plane; 62, bolt hole;
8, open apart from adjusting device; 81, adjust bolt; 82, lock nut;
10, pressure-regulating device; 102, screw rod; 104, spring; 106, adjusting nut;
12, supporting seat;
14, support plate; 141, non-magnetic shim;
16, the line that is flexible coupling;
Embodiment
In order to be illustrated more clearly in technical characterictic of the present utility model, purpose and effect, describe preferred implementation of the present utility model in detail hereinafter with reference to accompanying drawing.
Fig. 1 shows according to the static contact isolation switch assembly 1 of the present utility model and the movable feeler lever 2 of contact matching with it, has constituted isolating switch by this static contact isolation switch assembly 1 and movable feeler lever 2.Static contact isolation switch assembly 1 of the present utility model mainly comprises connecting plate 3 and first static contact finger that is positioned at the diagram top, that is, and and last static contact finger 4, and second static contact finger that is positioned at the diagram below, that is, and following static contact finger 6.Describedly go up static contact finger 4 and described static contact finger 6 down has link respectively, and with the contact jaw of the mutual face contact of movable feeler lever to be contacted.
Wherein, connecting plate 3 is parts that fixed contact assembly 1 is connected with external conductive, can link to each other with the external conductive bar and transmits electric power by line, and the material of described connecting plate 3 can be red copper, and the surface can be zinc-plated or silver-plated, to strengthen its conductive capability.Static contact finger 6 (also can be described as fixedly static contact finger) under installing on the connecting plate 3, this time static contact finger 6 contacts with movable feeler lever 2 on the one hand and plays electric action, also plays the effect of supporting movable feeler lever 2 on the other hand.Following static contact finger 6 can be divided into a plurality of, but considers and need support movable feeler lever 2, therefore preferably this time static contact finger 6 is manufactured an integral body, so that increase its support strength.
The master that Fig. 3 A, Fig. 3 B show this time static contact finger 6 looks and schematic top plan view.As shown in the figure, this time static contact finger 6 (i.e. left and right directions among the figure) along its length is divided into contact jaw that contacts current-carrying part and the link that constitutes the mounting portion, wherein contact current-carrying part (contact jaw) and be bent upwards projection, the end face of projection is the contact plane 61 that is used for face contact movable feeler lever 2 and supports this movable feeler lever 2, and mounting portion (link) is flat segments, has to be used for inserting bolt so that be installed in bolt hole 62 on the connecting plate.
Be provided with supporting seat 12 between static contact finger 6 and the last static contact finger 4 down, described supporting seat 12 is connected with described connecting plate 3, and the described link 60 of static contact finger 6 down is fixed between described supporting seat 12 and the described connecting plate 3.On this supporting seat 12 support plate 14 is installed, the described link 40 of going up static contact finger 4 is installed on the described support plate 14, and this supporting seat 12 plays the described effect of going up static contact finger 4 of supporting.In addition, the leading section of described supporting seat 12 between described upper and lower static contact finger 4,6 convexes with limiting section 121, and this limiting section 121 plays the position-limiting action that the movable feeler lever 2 that can prevent to enter between the upper and lower static contact finger 4,6 rotated the position.
Fig. 4 A, Fig. 4 B show the support plate 14 that non-magnetic shim 141 and screw rod 102 are installed.The master that Fig. 5 A, Fig. 5 B show static contact finger 4 looks schematic diagram and schematic top plan view.
According to expection by current value, the quantity of last static contact finger 4 can be one, two or more, and the width of static contact finger also can be determined according to actual needs.In this preferred implementation, the quantity of last static contact finger is two.
Last static contact finger 4 (i.e. left and right directions among the figure) along its length also is divided into contact current-carrying part (contact jaw) and mounting portion (link).Wherein, the contact current-carrying part is bowed downward to projection, and the end face of projection is the contact plane 41 that is used for face contact movable feeler lever 2 and supports this movable feeler lever 2; The mounting portion is a flat segments, on this mounting portion, be disposed with: be used to screw in out apart from adjusting the opening of bolt 81, be used for screw rod patchhole 43 that screw rod 102 inserts, be used to the non-magnetic shim seat 45 the connecting thread hole 44 of connecting bolt being installed and being used to be installed in the spherical tips of non-magnetic shim 141 apart from adjusting screwed hole 42.Distance between the contact jaw of described upward static contact finger 4 and following static contact finger 6 forms approaching relatively contact-making surface 41,61 less than the distance between the link 40,60 of this two fingertip, compares with known configurations, has improved static contact finger and movable feeler lever 2 contact performancies.
When last static contact finger 4 is installed on the support plate 14, screw rod 102 passes the screw rod patchhole 43 of static contact finger 4 and stretches out, the spherical tips of non-magnetic shim 141 embeds the non-magnetic shim seat 45 of going up static contact finger 4, thereby last static contact finger 4 is played a supporting role, keep certain spacing between the lower surface of the feasible upward mounting portion of static contact finger 4 and the upper surface of support plate.
The opening apart from adjusting device 8 of distance between the contact-making surface that is used to adjust static contact finger 4 and following static contact finger 6 is being installed on the last static contact finger 4, and the adjusting range of opening distance between the preferred described upper and lower static contact finger 4,6 is 2～3mm.
Shown in Fig. 2 A, Fig. 2 B.Specifically, this is opened apart from adjusting device and comprises out apart from adjusting bolt 81 and lock nut 82, open distance adjustment bolt 81 and screw in the screwed hole 42 of going up static contact finger 4, and screwed hole 42 contacts of described upward static contact finger 4 are run through on described support plate 14 in this lower end of opening distance adjustment bolt 81.After the distance between the contact-making surface 41,61 of adjusting upper and lower static contact finger 4,6, open apart from adjusting bolt 81 by lock nut 82 lockings.
In preferred structure, spring 104 is formed by the coiling of 2mm spring steel wire, and effectively the number of coils is 10, always scheme several 12, spring rate 2kg/m2, the pressure adjusting range of last static contact finger (single static contact finger) is 39～49N.Like this, after adjusting, can guarantee effectively that the electric current that passes through is not less than 1000A.
In this preferred implementation, last static contact finger 4 and following static contact finger 6 are the discrete items that are separated from each other, and for more favourable electric current is transported to connecting plate 3 from upper contact head, between last static contact finger 4 and connecting plate 3 line 16 that is flexible coupling are installed also.The electric current that this line 16 that is flexible coupling can flow through upper contact head is delivered to connecting plate by this soft line, and further transmits electric power to outside conducting rod.
Be appreciated that the operation principle of static contact isolation switch assembly of the present utility model by above description, promptly by adjusting the elasticity of spring 104, can further adjust static contact finger 4, contact pressure between following static contact finger 6 and the movable feeler lever 2, control by opening apart from adjusting device, following fixed contact 4, spacing between 6, further the minimizing movable feeler lever is subjected to the resistance from static contact finger when closure, thereby on making, following static contact finger and movable feeler lever carry out the conducting of electric current under suitable contact pressure, thereby reduce contact resistance pressure drop loss, reduce contact heating, improve the reliability of work.
In the above-described embodiment, described supporting seat 12 and support plate 14 are for to be made of two parts, another preferred embodiment is, described supporting seat 12 and support plate 14 one can be constituted, promptly, described screw rod 102, non-magnetic shim 141 are arranged on the described supporting seat 12, and described upper static contact 4 is installed on the described supporting seat 12, and its mounting means is identical with above-mentioned mounting means on support plate.The number of components that adopted this structure decrease can be convenient to assembling.
Upper and lower static contact finger 4,6 of the present utility model all can adopt red copper to make, and for improving its electric conductivity, the surface can be zinc-plated or silver-plated.
The above only is a preferred implementation of the present utility model, can not be interpreted as restriction of the present utility model.For example, in the utility model, the width of upper and lower static contact finger can equate or be unequal that shape and quantity can change as required to some extent.In the utility model, open apart from the position of adjusting bolt 81 and screw rod 102 and can exchange; Spring 104 can adopt other springs outside the spiral steel wire spring, such as leaf spring etc.; The link position of line 16 of being flexible coupling also can change.And, also can on the static contact finger 6 pressure-regulating device be set also down, regulate the pressure of 6 pairs of movable feeler levers 2 of static contact finger down whereby.Generally any variation and the modification of being done according to the utility model claims all belongs to the scope of the utility model patent protection.
Claims (9)
1. static contact isolation switch assembly, this static contact isolation switch assembly comprises:
Connecting plate and
Be positioned at first static contact finger that faces with each other and second static contact finger on this connecting plate, described first static contact finger and described second static contact finger have link respectively, and with the contact jaw of the mutual face of movable feeler lever to be contacted contact;
It is characterized in that one of them of described first static contact finger and second static contact finger is fixedly mounted on a plate and is fixing static contact finger, another static contact finger is adjustable static contact finger, which is provided with pressure-regulating device, and this pressure-regulating device comprises:
Spring, an end of described spring act on the described adjustable static contact finger; And
The spring force regulating part, described spring force regulating part and described spring connect.
2. static contact isolation switch assembly according to claim 1, it is characterized in that, have supporting seat between described fixedly static contact finger and adjustable static contact finger, described supporting seat is connected with described connecting plate, and the link of described fixedly static contact finger is fixed between described supporting seat and the described connecting plate; The link of described adjustable static contact finger is installed in the top of described supporting seat; Described supporting seat convexes with limiting section at the fixing leading section between static contact finger and the adjustable static contact finger.
3. static contact isolation switch assembly according to claim 2, it is characterized in that, described spring force regulating part comprises screw rod and nut, wherein said screw rod is installed on the described supporting seat and runs through described adjustable static contact finger, and described spring and described nut are installed on the part of stretching out of described screw rod.
4. static contact isolation switch assembly according to claim 2 is characterized in that described supporting seat is provided with support plate, and the link of described adjustable static contact finger is arranged on the described support plate; Described spring force regulating part comprises screw rod and nut, and wherein said screw rod is installed on the described support plate and runs through described adjustable static contact finger, and described spring and described nut are installed on the part of stretching out of described screw rod.
5. according to each described static contact isolation switch assembly of claim 2 to 4, it is characterized in that, described static contact isolation switch assembly also comprises opening apart from adjusting device of distance between the contact-making surface that is used to regulate described fixedly static contact finger and adjustable static contact finger, this is opened apart from adjusting device and comprises out that this is opened apart from adjusting bolt and passes described adjustable static contact finger and be resisted against described support plate or supporting seat apart from adjusting bolt.
6. static contact isolation switch assembly according to claim 5 is characterized in that described supporting seat or support plate are provided with non-magnetic shim, and the stiff end rear portion of described adjustable static contact finger is concaved with the non-magnetic shim seat with the corresponding cooperation of described non-magnetic shim.
7. static contact isolation switch assembly according to claim 5 is characterized in that, has the independent adjustable static contact finger that is provided with more than two on described supporting seat or the support plate.
8. according to each described static contact isolation switch assembly of claim 1 to 4, it is characterized in that the distance between the contact jaw of described fixedly static contact finger and adjustable static contact finger forms approaching relatively contact-making surface less than the distance between the link of this two fingertip.
9. static contact isolation switch assembly according to claim 8 is characterized in that, the link of described adjustable static contact finger be connected flexible cord and be connected, this connection flexible cord connects described fixedly static contact finger and described connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201910739U CN201134363Y (en) | 2007-12-29 | 2007-12-29 | Stationary contact component of isolation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201910739U CN201134363Y (en) | 2007-12-29 | 2007-12-29 | Stationary contact component of isolation switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201134363Y true CN201134363Y (en) | 2008-10-15 |
Family
ID=40062630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201910739U Expired - Fee Related CN201134363Y (en) | 2007-12-29 | 2007-12-29 | Stationary contact component of isolation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201134363Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254712A (en) * | 2011-07-18 | 2011-11-23 | 句容华源电器设备有限公司 | Transformer capacity-regulation switch high-voltage contact |
| CN103854883A (en) * | 2012-11-30 | 2014-06-11 | 施耐德电器工业公司 | Switching device |
| CN104409268A (en) * | 2014-11-10 | 2015-03-11 | 国家电网公司 | Isolating switch |
| CN105788944A (en) * | 2016-05-17 | 2016-07-20 | 国网山东省电力公司济南市长清区供电公司 | Disconnecting switch and disassembling method of contact fingers of disconnecting switch |
| CN105788943A (en) * | 2016-05-17 | 2016-07-20 | 国网山东省电力公司济南市长清区供电公司 | Fixed contact of disconnecting switch |
| CN106611658A (en) * | 2015-10-26 | 2017-05-03 | 辽宁华隆电力科技股份有限公司 | Outdoor AC high-voltage disconnecting switch with inclined surfaces of moving and static contacts |
| CN106611657A (en) * | 2015-10-26 | 2017-05-03 | 辽宁华隆电力科技股份有限公司 | An unequal-thickness moving contact surface contact outdoor AC high voltage isolation switch |
| CN106611676A (en) * | 2015-10-26 | 2017-05-03 | 辽宁华隆电力科技股份有限公司 | Surface-contact outdoor AC high-voltage disconnecting switch |
| CN106611661A (en) * | 2015-10-26 | 2017-05-03 | 辽宁华隆电力科技股份有限公司 | Outdoor alternating current high voltage isolating switch with prefabricated static contact width |
| CN106611659A (en) * | 2015-10-26 | 2017-05-03 | 辽宁华隆电力科技股份有限公司 | Surface-contact outdoor AC high-voltage disconnecting switch capable of self-locking |
| CN106611660A (en) * | 2015-10-26 | 2017-05-03 | 辽宁华隆电力科技股份有限公司 | Outdoor alternating-current high-voltage isolation switch with fixed contact compressing structure |
| CN110428985A (en) * | 2019-08-20 | 2019-11-08 | 国网福建省电力有限公司检修分公司 | Easy replaceable GW16/17 type disconnecting switch movable contact spring |
| DE102020203190B3 (en) | 2020-03-12 | 2021-08-05 | Siemens Aktiengesellschaft | Isolating device and inert gas-insulated medium-voltage power switchgear |
-
2007
- 2007-12-29 CN CNU2007201910739U patent/CN201134363Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254712A (en) * | 2011-07-18 | 2011-11-23 | 句容华源电器设备有限公司 | Transformer capacity-regulation switch high-voltage contact |
| CN103854883A (en) * | 2012-11-30 | 2014-06-11 | 施耐德电器工业公司 | Switching device |
| CN103854883B (en) * | 2012-11-30 | 2015-12-30 | 施耐德电器工业公司 | Switching device |
| CN104409268A (en) * | 2014-11-10 | 2015-03-11 | 国家电网公司 | Isolating switch |
| CN106611659A (en) * | 2015-10-26 | 2017-05-03 | 辽宁华隆电力科技股份有限公司 | Surface-contact outdoor AC high-voltage disconnecting switch capable of self-locking |
| CN106611660A (en) * | 2015-10-26 | 2017-05-03 | 辽宁华隆电力科技股份有限公司 | Outdoor alternating-current high-voltage isolation switch with fixed contact compressing structure |
| CN106611658A (en) * | 2015-10-26 | 2017-05-03 | 辽宁华隆电力科技股份有限公司 | Outdoor AC high-voltage disconnecting switch with inclined surfaces of moving and static contacts |
| CN106611657A (en) * | 2015-10-26 | 2017-05-03 | 辽宁华隆电力科技股份有限公司 | An unequal-thickness moving contact surface contact outdoor AC high voltage isolation switch |
| CN106611676A (en) * | 2015-10-26 | 2017-05-03 | 辽宁华隆电力科技股份有限公司 | Surface-contact outdoor AC high-voltage disconnecting switch |
| CN106611661A (en) * | 2015-10-26 | 2017-05-03 | 辽宁华隆电力科技股份有限公司 | Outdoor alternating current high voltage isolating switch with prefabricated static contact width |
| CN105788944A (en) * | 2016-05-17 | 2016-07-20 | 国网山东省电力公司济南市长清区供电公司 | Disconnecting switch and disassembling method of contact fingers of disconnecting switch |
| CN105788943A (en) * | 2016-05-17 | 2016-07-20 | 国网山东省电力公司济南市长清区供电公司 | Fixed contact of disconnecting switch |
| CN105788943B (en) * | 2016-05-17 | 2017-12-19 | 国网山东省电力公司济南市长清区供电公司 | A kind of static contact isolation switch |
| CN105788944B (en) * | 2016-05-17 | 2017-12-19 | 国网山东省电力公司济南市长清区供电公司 | A kind of method for dismounting of disconnecting switch and its fingertip |
| CN110428985A (en) * | 2019-08-20 | 2019-11-08 | 国网福建省电力有限公司检修分公司 | Easy replaceable GW16/17 type disconnecting switch movable contact spring |
| DE102020203190B3 (en) | 2020-03-12 | 2021-08-05 | Siemens Aktiengesellschaft | Isolating device and inert gas-insulated medium-voltage power switchgear |
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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: 20081015 Termination date: 20131229 |