CN202434401U - Isolating switch for gas insulated switchgear (GIS) - Google Patents
Isolating switch for gas insulated switchgear (GIS) Download PDFInfo
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- CN202434401U CN202434401U CN2012200219496U CN201220021949U CN202434401U CN 202434401 U CN202434401 U CN 202434401U CN 2012200219496 U CN2012200219496 U CN 2012200219496U CN 201220021949 U CN201220021949 U CN 201220021949U CN 202434401 U CN202434401 U CN 202434401U
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- contact
- bus
- bus group
- isolation
- fracture
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Abstract
The utility model relates to an isolating switch. The isolating switch comprises a casing, a first port, a first bus group, a plurality of second ports, a plurality of second bus groups and an isolating control device, wherein the first port is arranged on the casing, the first bus group is arranged on the inner side of the first port and is used for transmitting three-phase electricity, the plurality of second ports are arranged on the casing, the plurality of second bus groups are respectively arranged on inner sides of the plurality of second ports and are used for transmitting the three-phase electricity, buses of the same phase in the plurality of second bus groups are connected with one another respectively, isolating fractures exist among second bus groups and the first bus group, and the isolating control device controls connection and disconnection among the first bus group and second bus groups. The plurality of second ports and the plurality of second bus groups are arranged, so that a main loop can be connected with a plurality of electrical elements simultaneously, and compared with the prior art, the isolating switch omits connection buses which are required for transitional connection.
Description
Technical field
The utility model relates to the power industry technologies field, is specifically related to be used for the isolating switch of Cubicle Gas-Insulated Switchgear (GIS).
Background technology
As shown in Figure 1, GIS of the prior art uses isolating switch, comprising: housing 1; First port 2 and second port 4, said first port 2 and second port 4 are separately positioned on the said housing 1; The first bus group 3 and the second bus group 5, the said first bus group 3 and the second bus group 5 are separately positioned on said first port 2 and second port, 4 inboards, are used to carry three-phase electricity, and have isolation fracture 6 between the said first bus group 3 and the second bus group 5; Be positioned at the isolated controlling device 7 of isolating switch upside, being communicated with and disconnection between the said first bus group 3 of said isolated controlling device 7 controls and the said second bus group 5.
As shown in Figure 1, when the said isolation fracture of said isolated controlling device 7 controls 6 is closed, realize the conducting of electric current between the first bus group 3 and the second bus group 5, when breaking off, realizes said isolation fracture 6 ending of electric current between the first bus group 3 and the second bus group 5.The first bus group 3 of the isolating switch of prior art is connected with major loop, and the second bus group 5 can only be connected with electric elements.When electric major loop need be connected with a plurality of electric elements; The connection bus that connects usefulness as transition that is merely able to have through increase a plurality of ports is connected with the second bus group 5; And then be connected with a plurality of electric elements, so make size increase, the cost up of whole GIS through these other ports that are communicated with bus.
In addition, GIS of the prior art also comprises the earthed switch 8 that is fixedly mounted on its downside with isolating switch, and this makes that the installation site of earthed switch 8 is dumb, thereby makes the GIS can not flexible arrangement.
The utility model content
The problem that utility model will solve
For this reason; The utility model technical problem to be solved is when electric major loop need be connected with a plurality of electric elements; The isolating switch of prior art is merely able to through increasing the connection bus as transition connection usefulness; Make the size of GIS increase, cost up, and then do not need the isolating switch of other connection bus when providing a kind of and a plurality of electric elements to be connected.
The scheme that is used to deal with problems
The described isolating switch of the utility model, it comprises: housing; First port, said first port is arranged on the said housing; It is inboard that the first bus group, the said first bus group are arranged on said first port, is used to carry three-phase electricity; A plurality of second ports, said a plurality of second ports are arranged on the said housing; It is inboard that a plurality of second bus groups, said a plurality of second bus groups are arranged on said a plurality of second port respectively, is used to carry three-phase electricity; The bus of the phase homophase in said a plurality of second bus group is connected respectively, has isolation fracture between said second bus group and the said first bus group; Isolated controlling device, said isolated controlling device are controlled being communicated with and disconnection between the said first bus group and the said second bus group.
Said a plurality of second port is arranged on the different face of said housing.
Said second port is three, and the correspondingly said second bus group is three groups.
Said isolated controlling device comprises: three isolation switch contacts; The length of said isolation switch contact is greater than the length of said isolation fracture, and keeps being slidingly connected in isolation switch contact described in the motion process of said isolation switch contact and said first bus group or the said second bus group; Actuating unit, said actuating unit are controlled said isolation switch contact and are slided with respect to the perhaps said second bus group of the said first bus group.
Said isolated controlling device also comprises: three first connection contact, and said first connection contact is connected with the end of the said first bus group towards said isolation fracture; Three second connection contact, said second connection contact is connected with the end of the said second bus group towards said isolation fracture; Said isolation switch contact is separately positioned on the line direction of corresponding said first connection contact and second connection contact according to phase sequence.
Said isolation switch contact connects said second connection contact, and connects the said second bus group towards the direction extension away from said isolation fracture, and the end of its second bus group side is connected with said actuating unit; And, be provided with fairlead in the periphery of said isolation switch contact at the junction surface of said second bus group and said second connection contact.
Said actuating unit comprises: rotating output shaft; Rolling bearing, said rolling bearing are arranged on the end of said isolation switch contact away from said isolation fracture; Connecting lever, said connecting lever are connected between said rotating output shaft and the said rolling bearing.
One of said first port or second port are connected with the earthed switch that is complementary.
Said earthed switch comprises: three earthed switch contacts, and the length of said earthed switch contact is greater than the length of ground connection fracture; Three pairs of connection contact; Said connection contact is connected with the three-phase bus of said ground connection fracture both sides respectively, and said earthed switch contact is separately positioned on the line direction of corresponding said three pairs of connection contact and connects the connection contact away from said isolating switch according to phase sequence; The interlock plate external member, said interlock plate external member is connected with the end of said isolation switch contact away from said ground connection fracture; Guide post, said guide post play the guiding role to the motion of said interlock plate external member; Actuating unit, said actuating unit are controlled said earthed switch contact and are slided with respect to said connection contact.
Said actuating unit comprises: rotating output shaft; Rolling bearing, said rolling bearing are arranged in the slotted hole of said interlock plate external member away from the end of said ground connection fracture; Connecting lever, said connecting lever are connected between said rotating output shaft and the said rolling bearing.
The effect of utility model
(1) the described isolating switch of the utility model is provided with a plurality of second ports and a plurality of second bus group, can realize major loop simultaneously with being connected of a plurality of electric elements, compare prior art and reduced the connection bus that the transition that needs connects usefulness.
(2) described a plurality of second ports of the utility model are arranged on the different face of housing, and a plurality of thus second bus groups are provided with and can on different directions, transmit electricity, thus make the installation site of the electrical equipment that will connect flexible.
(3) be provided with connection contact in the said isolated controlling device of the utility model; The conduction that can increase isolation switch contact connects area; Thereby effectively guarantee being communicated with between said isolation switch contact and the said first bus group or the said second bus group, prevent the poor contact phenomenon between isolation switch contact and bus.
(4) the said isolating switch of the utility model at the junction surface of said second bus group and said second connection contact, is provided with fairlead in the periphery of said isolation switch contact.The direction of motion that fairlead can guarantee said isolation isolation switch contact is set; And said, thereby guaranteed that the said second bus group firmly is connected with said second connection contact to the junction surface that is set on said second bus group and said second connection contact.
(5) the said isolating switch of the utility model can be provided with earthed switch at said first port or the connection of any second port, compares prior art, and the installation site of earthed switch is flexible.
(6) in the actuating unit of the utility model; Rotating output shaft drives rolling bearing through connecting lever and moves in a circle; Thereby drive the motion of said switch touching contact or earthed switch contact, the closure that can effectively guarantee isolation fracture or ground connection fracture with open.
Description of drawings
In order to make the utility model more clearly obtain understanding, the embodiment of the utility model is done explanation further below in conjunction with accompanying drawing.
Fig. 1 is the cutaway view of isolating switch of the prior art;
Fig. 2 is the cutaway view of the said isolating switch of the utility model;
Fig. 3 is the cutaway view along the A-A direction among Fig. 2;
Fig. 4 is provided with the said isolating switch of earthed switch and the cutaway view of the identical cutting plane of Fig. 2 tool for the utility model;
Fig. 5 is the enlarged drawing of earthed switch among Fig. 4;
Fig. 6 is the electrical schematic diagram of isolating switch shown in Figure 4;
Fig. 7 is the electrical schematic diagram of the application examples of isolating switch shown in Figure 4.
Description of reference numerals
1 housing, 2 first ports, 3 first bus groups, 4 second ports, 5 second bus groups, 6 isolation fractures, 7 isolated controlling devices; 71 first connection contact, 72 second connection contact, 73 isolation switch contacts, 74 fairleads, 75 actuating units, 751 rotating output shafts, 752 rolling bearings; 753 connecting levers, 76 closing positions, 77 separating brake positions, 8 earthed switches, 81 earthed switch contacts, 82 ground connection fractures, 83 connection contact; 84 interlock plate external members, 841 slotted holes, 85 guide posts, 86 actuating units, 861 rotating output shafts, 862 rolling bearings; 863 connecting levers, 87 closing positions, 88 separating brake positions, 9 main bus bar modules, 10 lightning arrester modules, 11 voltage transformer modules.
Embodiment
As shown in Figures 2 and 3, the isolating switch of the utility model comprises: housing 1; First port 2, said first port 2 is arranged on the housing 1; The first bus group, 3, the first bus groups 3 are arranged on first port, 2 inboards, are used to carry three-phase electricity.Isolating switch in the present embodiment is provided with three second ports 4, and said three second ports 4 are arranged on the housing 1, and as can be seen from the figure, three second ports 4 are arranged on the different side of housing 1; Three group of second bus group 5 (having illustrated two groups among the figure), the said second bus group 5 are separately positioned on said a plurality of second ports 4 inboards, are used to carry three-phase electricity; In conjunction with Fig. 2, Fig. 3; Can see that the A phase bus in above-mentioned three the second bus groups 5 links together; B phase bus links together; C phase bus links together, and promptly the bus of the phase homophase in the second bus group 5 is connected respectively, has isolation fracture 6 between the second bus group 5 and the first bus group 3.
As shown in Figures 2 and 3, three first connection contact 71 are connected with the end of the first bus group 3 towards isolation fracture 6 respectively; Three second connection contact 72 are connected with the end of the second bus group 5 towards isolation fracture 6 respectively.Three isolation switch contacts 73 are separately positioned on the line direction of the first corresponding connection contact 71 and second connection contact 72 according to phase sequence; Isolation switch contact 73 connects second connection contact 72; And connecting the second bus group 5 extends towards the direction away from isolation fracture 6; And at the junction surface of the second bus group 5 and second connection contact 72, the periphery of isolation switch contact 73 is provided with fairlead 74.
Can see that from Fig. 2 the isolation switch contact 73 and the second bus group 5 keep being slidingly connected in the motion process of said isolation switch contact 73, its length is greater than the length of isolation fracture 6, and the end of its second bus group, 5 sides is connected with actuating unit 75.Actuating unit 75 control isolation switch contacts 73 slide with respect to the second bus group 5.Actuating unit 75 comprises: rotating output shaft 751; Rolling bearing 752, rolling bearing 752 are arranged on the end of isolation switch contact 73 away from isolation fracture 6; Connecting lever 753, connecting lever 753 are connected between rotating output shaft 751 and the rolling bearing 752.
Above-mentioned isolation switch contact 73, first connection contact 71 and second connection contact 72, fairlead 74 and actuating unit 75 constitute the isolated controlling device 7 of the utility model, being communicated with and disconnection between the isolated controlling device 7 controls first bus group 3 and the second bus group 5.
Detailed process is following: as shown in Figure 2, this moment, isolation switch contact 73 was in closing position 76, and isolation switch contact 73 contacts with first connection contact 71, keeps being communicated with between the first bus group 3 and the second bus group 5.When needs break off being connected between the first bus group 3 and the second bus group 5, make isolation switch contact 73 by closing position 76 to 77 motions of separating brake position.At this moment; Rotating output shaft 751 rotates to separating brake position 77 through manual or programme controlled mode; And then drive connecting lever 753 to 77 rotations of separating brake position; The rolling bearing that is connected with connecting lever 753 752 is that the center moves in a circle with the power output shaft, and then drives contact and under the guide effect of fairlead 74, do rectilinear motion, when isolation switch contact 73 arrives separating brake positions 77, finishes motion.When isolation switch contact 73 arrived separating brake position 77, the isolation switch contact 73 and first connection contact 71 were broken off, thereby keep between the first bus group 3 and the second bus group 5 breaking off.When actuating unit 75 reverse operatings, can realize isolation switch contact 73 by separating brake position 77 to closing position 76 motion, and then make to win and transfer connected state to by off-state between the bus group 3 and the second bus group 5.
Need to prove that the foregoing description is just given an example for what explanation the utility model was done, should not be construed as the restriction to the utility model.Isolation switch contact 73 also can keep being slidingly connected with the first bus group 3, and its length is greater than the length of isolation fracture 6, and the end of its first bus group, 3 sides is connected with actuating unit 75.And at the junction surface of the first bus group 3 and first connection contact, the periphery of isolation switch contact 73 is provided with fairlead 74.Like this, actuating unit 75 can be controlled said isolation switch contact 73 with respect to 3 slips of the said first bus group.
Said actuating unit 75 also can be realized by other mechanism, slides with respect to said first bus group 3 or the said second bus group 5 as long as can control said isolation switch contact 73.For example, said actuating unit can be made up of screw rod and the suitable screws that be arranged in the isolation switch contact 73, drives isolation switch contact 73 motions through rotary screw, so realize between the first bus group 3 and the second bus group 5 disconnection be communicated with.
Said second port 4 and the second bus group 5 of other numbers can be set in addition.For example, five second ports 4 and five group of second bus group 5 can be set, first port 2 and second port 4 be separately positioned on six different faces of housing 1.
As preferred embodiment, as shown in Figure 4, one second port 4 is connected with the earthed switch 8 that is complementary therein.Can be clear that from Fig. 5 earthed switch 8 comprises: three earthed switch contacts 81, the length of earthed switch contact 81 is greater than the length of ground connection fracture 82; Three pairs of connection contact 83 are connected with the three-phase bus of ground connection fracture 82 both sides respectively, and earthed switch contact 81 is separately positioned on the line direction of corresponding three pairs of connection contact 83 and connects the connection contact 83 of upside according to phase sequence; Interlock plate external member 84 is connected with the end of earthed switch contact 81 upsides; Guide post 85, the motion of 85 pairs of interlock plate external members 84 of guide post play the guiding role; Actuating unit 86, actuating unit 86 control earthed switch contacts 81 slide with respect to connection contact 83.Actuating unit 86 comprises: rotating output shaft 861; Rolling bearing 862, rolling bearing 862 are arranged in the slotted hole 841 of interlock plate external member 84 away from the end of ground connection fracture 82; Connecting lever 863, connecting lever 863 are connected between rotating output shaft 861 and the rolling bearing 862.
As shown in Figure 5, this moment, earthed switch contact 81 was in closing position 87 with interlock plate external member 84, and earthed switch contact 81 contacts with the connection contact 83 of downside, the electric elements ground connection that is connected with other second bus groups 5.When needs break off earthed switch 8; Earthed switch contact 81 is moved to separating brake position 88 by closing position 87 with interlock plate external member 84; Rotating output shaft 861 is to 88 rotations of separating brake position; And then drive connecting lever 863 to 88 rotations of separating brake position; The rolling bearing 862 that is connected with connecting lever 863 that is arranged in slotted hole 841 is that the center moves in a circle with rotating output shaft 861, and then drives contact and under the guide effect of guide post 85, do rectilinear motion with interlock plate external member 84, and end is moved when ground connection beginning contact is in separating brake position 88 with interlock plate external member 84.When contact and interlock plate external member 84 were in separating brake position 88, earthed switch contact 81 broke off with the connection contact 83 of downside, and the electric elements that are connected with other second bus groups 5 are ground connection no longer.When actuating unit 86 reverse operatings, can be grounded switch contact 81 and move to closing position 87 by separating brake position 88.
Similarly, said actuating unit 86 also can be realized by other mechanism, slides with respect to said connection contact 83 as long as can control said earthed switch contact 81.For example, said actuation mechanism can be made up of screw rod and the suitable screw that is arranged in the earthed switch contact 81, through rotary screw and then the motion of drive isolation switch contact.
Preferably, the connection contact described in the utility model the foregoing description 71,72 and 83 is a Mume flower contact.
Fig. 6 shows the above-mentioned electrical schematic diagram that is provided with the isolating switch of earthed switch 8, and wherein ES representes earthed switch, and DS representes isolating switch.Fig. 7 is the electrical schematic diagram of the application examples of above-mentioned isolating switch.In this application examples, main bus bar module 9 be connected to 3, three second bus groups 5 of the first bus group respectively with earthed switch 8, lightning arrester module 10 and voltage transformer module 11.When the ES disconnection, when DS is communicated with, the first bus group 3 is communicated with the second bus group 5, and lightning arrester module 10, voltage transformer module 11 are communicated with main bus bar module 9 respectively.When needs during to 11 maintenance of lightning arrester module 10, voltage transformer module, with DS break off, ES is communicated with, this moment lightning arrester module 10, voltage transformer module 11 equal ground connection.Can find out that from present embodiment the said isolating switch of the utility model need not increase the connection bus that connects usefulness as transition, can realize that lightning arrester module 10, voltage transformer module 11 are communicated with main bus bar module 9 simultaneously.
Obviously, the foregoing description only be for explanation clearly done for example, but not to the restriction of execution mode.To those of ordinary skill in the art; On the basis of above-mentioned explanation, also can make multi-form variation and change; Here need not also can't make all execution modes exhaustive, and conspicuous variation of being extended out thus or change still fall into the protection range of the utility model claim.
Claims (10)
1. isolating switch, it comprises:
Housing (1);
First port (2), said first port (2) are arranged on the said housing (1);
The first bus group (3), the said first bus group (3) is arranged on said first port (2) inboard, is used to carry three-phase electricity;
It is characterized in that, also comprise:
A plurality of second ports (4), said a plurality of second ports (4) are arranged on the said housing (1);
A plurality of second bus groups (5), said a plurality of second bus groups (5) are separately positioned on said a plurality of second ports (4) inboard, are used to carry three-phase electricity;
The bus of the phase homophase in said a plurality of second bus group (5) is connected respectively, has isolation fracture (6) between said second bus group (5) and the said first bus group (3);
Being communicated with and disconnection between the isolated controlling device (7), the said first bus group (3) of said isolated controlling device (7) control and the said second bus group (5).
2. isolating switch according to claim 1 is characterized in that, said a plurality of second ports (4) are arranged on the different face of said housing (1).
3. isolating switch according to claim 2 is characterized in that, said second port (4) is three, and the correspondingly said second bus group (5) is three.
4. according to each the described isolating switch among the claim 1-3, it is characterized in that said isolated controlling device (7) comprising:
Three isolation switch contacts (73); The length of said isolation switch contact (73) is greater than the length of said isolation fracture (6), and keeps being slidingly connected in isolation switch contact described in the motion process of said isolation switch contact (73) (73) and said first bus group (3) or the said second bus group (5);
Actuating unit (75), said actuating unit (75) are controlled said isolation switch contact (73) and are slided with respect to the perhaps said second bus group (5) of the said first bus group (3).
5. isolating switch according to claim 4 is characterized in that, said isolated controlling device (7) also comprises:
Three first connection contact (71), said first connection contact (71) is connected with the end of the said first bus group (3) towards said isolation fracture (6);
Three second connection contact (72), said second connection contact (72) is connected with the end of the said second bus group (5) towards said isolation fracture (6);
Said isolation switch contact (73) is separately positioned on the line direction of corresponding said first connection contact (71) and second connection contact (72) according to phase sequence.
6. isolating switch according to claim 5 is characterized in that,
Said isolation switch contact (73) connects said second connection contact (72), and connects the said second bus group (5) towards the direction extension away from said isolation fracture (6), and the end of its second bus group (5) side is connected with said actuating unit (75);
And, be provided with fairlead (74) in the periphery of said isolation switch contact (73) at the junction surface of the said second bus group (5) and said second connection contact (72).
7. isolating switch according to claim 4 is characterized in that, said actuating unit (75) comprising:
Rotating output shaft (751);
Rolling bearing (752), said rolling bearing (752) are arranged on the end of said isolation switch contact (73) away from said isolation fracture (6);
Connecting lever (753), said connecting lever (753) are connected between said rotating output shaft (751) and the said rolling bearing (752).
8. according to claim 1 or 2 or 3 described isolating switches, it is characterized in that one of said first port or second port are connected with the earthed switch (8) that is complementary.
9. isolating switch according to claim 8 is characterized in that, said earthed switch (8) comprising:
Three earthed switch contacts (81), the length of said earthed switch contact is greater than the length of ground connection fracture (82);
Three pairs of connection contact (83); Said connection contact (83) is connected with the three-phase bus of said ground connection fracture (82) both sides respectively, and said earthed switch contact (81) is separately positioned on the line direction of corresponding said three pairs of connection contact (83) and connects the connection contact (83) away from said isolating switch according to phase sequence;
Interlock plate external member (84), said interlock plate external member (84) is connected with the end of said isolation switch contact away from said ground connection fracture (82);
Guide post (85), said guide post (85) play the guiding role to the motion of said interlock plate external member (84);
Actuating unit (86), said actuating unit (86) the said earthed switch contact of control (81) slides with respect to said connection contact (83).
10. isolating switch according to claim 9 is characterized in that, said actuating unit (86) comprising:
Rotating output shaft (861);
Rolling bearing (862), said rolling bearing (862) are arranged in the slotted hole (841) of said interlock plate external member (84) away from the end of said ground connection fracture (82);
Connecting lever (863), said connecting lever (863) are connected between said rotating output shaft (861) and the said rolling bearing (862).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200219496U CN202434401U (en) | 2012-01-17 | 2012-01-17 | Isolating switch for gas insulated switchgear (GIS) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200219496U CN202434401U (en) | 2012-01-17 | 2012-01-17 | Isolating switch for gas insulated switchgear (GIS) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202434401U true CN202434401U (en) | 2012-09-12 |
Family
ID=46783828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200219496U Expired - Fee Related CN202434401U (en) | 2012-01-17 | 2012-01-17 | Isolating switch for gas insulated switchgear (GIS) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202434401U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742964A (en) * | 2014-12-30 | 2016-07-06 | 施耐德电气美国股份有限公司 | Panelboard power bus with arc transfer for passive arc control |
| CN112038156A (en) * | 2020-06-22 | 2020-12-04 | 平高集团有限公司 | Double-fracture isolating switch and high-voltage line connecting structure |
-
2012
- 2012-01-17 CN CN2012200219496U patent/CN202434401U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742964A (en) * | 2014-12-30 | 2016-07-06 | 施耐德电气美国股份有限公司 | Panelboard power bus with arc transfer for passive arc control |
| CN105742964B (en) * | 2014-12-30 | 2019-05-17 | 施耐德电气美国股份有限公司 | Are-tight distribution board and by electric arc from the method for distribution board call away to |
| CN112038156A (en) * | 2020-06-22 | 2020-12-04 | 平高集团有限公司 | Double-fracture isolating switch and high-voltage line connecting structure |
| CN112038156B (en) * | 2020-06-22 | 2023-02-17 | 平高集团有限公司 | Double-fracture isolating switch and high-voltage line connecting structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20170117 |