CN112713042A - GW4 type isolating switch for reducing defect frequency of heating conductive loop - Google Patents
GW4 type isolating switch for reducing defect frequency of heating conductive loop Download PDFInfo
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- CN112713042A CN112713042A CN202011545984.3A CN202011545984A CN112713042A CN 112713042 A CN112713042 A CN 112713042A CN 202011545984 A CN202011545984 A CN 202011545984A CN 112713042 A CN112713042 A CN 112713042A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/023—Base and stationary contacts mounted thereon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
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Abstract
Reduce GW4 type isolator of conductive loop defect number of times that generates heat, including electrically conductive finger and conductive contact, electrically conductive finger includes first electrically conductive base, and electrically conductive contact includes the electrically conductive base of second, and electrically conductive swing arm is connected to one side of the electrically conductive base of second, and two sets of centre gripping direction conductive device are connected to one side of first electrically conductive base, and for prior art, electrically conductive finger and electrically conductive contact complex success rate are higher, effectively avoid electrically conductive finger and electrically conductive contact to be blocked easily at the cooperation in-process.
Description
Technical Field
The invention relates to a disconnecting switch, in particular to a GW4 type disconnecting switch for reducing the defect times of a heating conductive loop.
Background
Publication No.: CN201112254 discloses a double-column pi-shaped outdoor three-phase ac high-voltage isolating switch with an external pressure type contact finger structure, and we find that in practical application of the device, when a contact and a contact finger are plugged, a square head is easily blocked by a side portion of a finger-shaped sheet, which leads to a plugging failure.
Disclosure of Invention
The invention aims to provide a GW4 type isolating switch capable of reducing the defect frequency of a heating conductive loop, which can improve a conductive contact finger and a conductive contact on the basis of the prior art, and comprises two groups of clamping and guiding conductive devices, wherein the two groups of clamping and guiding conductive devices form a guiding structure at the front parts of a first linear conductive rod and a second linear conductive rod by utilizing a first arc conductive rod and a second arc conductive rod, the first arc conductive rod and the second arc conductive rod can be matched with a conductive wheel on a conductive swing arm preferentially when the conductive contact finger and the conductive contact are matched in a rotating way, and the conductive wheel is guided by utilizing the self arc structure to slide into the space between the first linear conductive rod and the second linear conductive rod, so that the matching of the conductive contact finger and the conductive contact is realized, compared with the prior art, the matching success rate of the conductive contact finger and the conductive contact is higher, effectively avoid electrically conductive contact finger and electrically conductive contact to be blocked easily in the cooperation process.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the GW4 type isolating switch for reducing the defect frequency of a heating conductive loop comprises a base, a conductive contact finger and a conductive contact, wherein the conductive contact finger comprises a first conductive base, the conductive contact finger comprises a second conductive base, two insulating columns are connected to the base, the upper ends of the insulating columns are connected with rotating motors, output shafts of the two rotating motors on the two insulating columns are respectively connected with the first conductive base and the second conductive base, one side of the second conductive base is connected with a conductive swing arm, one side of the first conductive base is connected with two groups of clamping guide conductive devices, each clamping guide conductive device comprises a first linear conductive rod and a second linear conductive rod, one end of each first linear conductive rod and one end of each second linear conductive rod are both connected with the first conductive base, the other end of each first linear conductive rod is connected with a first arc-shaped conductive rod, and the other end of each second linear conductive rod is connected with a second arc-shaped conductive rod, the direction of the arc of first arc conducting rod and the direction of the arc of second arc conducting rod all towards electrically conductive swing arm, and electrically conductive wheel is all installed to the one end both sides of electrically conductive swing arm, and electrically conductive wheel's one side and electrically conductive swing arm turn-on connection, the ring channel is seted up around the side of electrically conductive wheel, and two electrically conductive wheels can cooperate with two sets of centre gripping direction conductive device respectively, and in the centre gripping direction conductive device that corresponds with electrically conductive wheel, first straight line conducting rod and the cooperation of second straight line conducting rod are carried and are electrically conductive round.
In order to further achieve the purpose of the invention, the technical scheme can also be that the side part of the first linear conducting rod in the same group of clamping and conducting devices is connected with a first fixing plate, the side part of the second linear conducting rod is connected with a second fixing plate, the second fixing plate is provided with a screw hole, the second fixing plate is in threaded connection with a bolt through the screw hole, the end part of a screw rod of the bolt is provided with a bearing, the inner ring of the bearing is connected with the bolt, the outer ring of the bearing is connected with a spring, one end of the spring is connected with the first fixing plate, and the spring is in a stretching.
The end part of the first arc-shaped conducting rod and the end part of the second arc-shaped conducting rod are both connected with a first spherical guide block.
And the outer sides of the first linear conducting rod and the second linear conducting rod are both provided with a first silver conducting layer.
And a second silver conducting layer is arranged on the outer side of the conducting wheel.
The invention has the advantages that: the invention improves the conductive contact finger and the conductive contact on the basis of the prior art, firstly, two groups of clamping and guiding conductive devices are additionally arranged on the conductive contact finger, the two groups of clamping and guiding conductive devices form a guiding structure on the front parts of a first straight-line conductive rod and a second straight-line conductive rod by utilizing a first arc-shaped conductive rod and a second arc-shaped conductive rod, when the conductive contact finger is matched with the conductive contact head in a rotating way, the first arc-shaped conductive rod and the second arc-shaped conductive rod can be preferentially matched with the conductive wheel on the conductive swing arm, and utilize self arc structure to lead the conducting wheel, make the conducting wheel slide in between first straight line conducting rod and the second straight line conducting rod, realize electrically conductive contact finger and conductive contact's cooperation, for prior art, electrically conductive contact finger and conductive contact cooperation success rate are higher, effectively avoid electrically conductive contact finger and conductive contact to be blocked easily at the cooperation in-process.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a second schematic structural diagram of the present invention;
FIG. 3 is a third schematic structural diagram of the present invention;
FIG. 4 is a fourth schematic view of the present invention.
Labeling components: 1 first conductive base 2 first linear conductive rod 3 second linear conductive rod 4 conductive wheel 5 first arc conductive rod 6 first spherical guide 7 second arc conductive rod 8 second spherical guide 9 conductive swing arm 10 second conductive base 11 first fixed plate 12 spring 13 bearing 14 second fixed plate 15 bolt 16 first silver conductive layer 17 second silver conductive layer 18 ring groove.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
Example 1:
a GW4 type disconnecting switch for reducing the number of defects of a heating conductive loop, as shown in figures 1-4, comprises a base 20, a conductive contact finger and a conductive contact, wherein the conductive contact finger comprises a first conductive base 1, the conductive contact comprises a second conductive base 10, two insulating columns 19 are connected on the base 20, the upper ends of the insulating columns 19 are connected with rotating motors 18, output shafts of the two rotating motors 18 on the two insulating columns 19 are respectively connected with the first conductive base 1 and the second conductive base 10, one side of the second conductive base 10 is connected with a conductive swing arm 9, one side of the first conductive base 1 is connected with two groups of clamping guide conductive devices, the clamping guide conductive devices comprise a first linear conductive rod 2 and a second linear conductive rod 3, one end of the first linear conductive rod 2 and one end of the second linear conductive rod 3 are both connected with the first conductive base 1, the other end of the first linear conductive rod 2 is connected with a first arc conductive rod 5, second arc conducting rod 7 is connected to the other end of second straight line conducting rod 3, the direction of the arc of first arc conducting rod 5 and the direction of the arc of second arc conducting rod 7 all face electrically conductive swing arm 9, electrically conductive wheel 4 is all installed to the one end both sides of electrically conductive swing arm 9, one side and electrically conductive swing arm 9 turn-on connection of electrically conductive wheel 4, annular groove 18 is seted up to electrically conductive wheel 4's side week, two electrically conductive wheels 4 can cooperate with two sets of centre gripping direction conductive device respectively, in the centre gripping direction conductive device that corresponds with electrically conductive wheel 4, electrically conductive wheel 4 can be cliied in the cooperation of first straight line conducting rod 2 and second straight line conducting rod 3.
The invention improves the conductive contact finger and the conductive contact on the basis of the prior art, firstly, two groups of clamping and guiding conductive devices are additionally arranged on the conductive contact finger, the two groups of clamping and guiding conductive devices form a guiding structure on the front parts of a first straight conductive rod 2 and a second straight conductive rod 3 by utilizing a first arc conductive rod 5 and a second arc conductive rod 7, when the conductive contact finger and the conductive contact are matched in a rotating way, the first arc-shaped conductive rod 5 and the second arc-shaped conductive rod 7 can be preferentially matched with the conductive wheel 4 on the conductive swing arm 9, and utilize self arc structure to lead to conductive wheel 4, make conductive wheel 4 slide into between first straight line conducting rod 2 and the second straight line conducting rod 3, realize electrically conductive contact finger and conductive contact's cooperation, compared with prior art, electrically conductive contact finger and conductive contact cooperation success rate are higher, effectively avoid electrically conductive contact finger and conductive contact to be blocked easily at the cooperation in-process.
Material selection and feasibility analysis of specific implementation of application range: the practical manufactured sample is implemented by taking the specification attached drawing as a drawing according to the proportion and the matching mode of each part in the specification attached drawing, the connection is a common connection mode such as a connection of a strong adhesive, a welding, riveting and a flange connection and an integral forming type connection, and the thickness and the strength of a corresponding connection mode connection point can be selected without creativity according to the requirement of practical connection strength during practical manufacturing. In practice, this application is used in place of the publication number: CN201112254 discloses a structure between a right contact and a left contact of a double-column pi-type outdoor three-phase ac high-voltage isolating switch with an external pressure type contact finger structure, wherein the first conductive base 1 and the publication number of the present application: CN201112254 has a structure in which one of the mounting boards is conductively connected, and the second conductive base 10 is connected to the first conductive base: and the other mounting plate in the CN201112254 structure is connected in a conduction mode. The rotating motor 18 can drive the first conductive base 1 and the second conductive base 10 to rotate, so as to drive the two conductive wheels 4 to be respectively matched with the two groups of clamping guide conductive devices. First straight line conducting rod 2 and second straight line conducting rod 3 can switch on through electrically conductive soft braid with external circuit, and first straight line conducting rod 2 and second straight line conducting rod 3 can switch on through electrically conductive soft braid with external circuit.
Example 2:
a GW4 type disconnecting switch for reducing the number of defects of a heating conductive loop, as shown in figures 1-4, comprises a base 20, a conductive contact finger and a conductive contact, wherein the conductive contact finger comprises a first conductive base 1, the conductive contact comprises a second conductive base 10, two insulating columns 19 are connected on the base 20, the upper ends of the insulating columns 19 are connected with rotating motors 18, output shafts of the two rotating motors 18 on the two insulating columns 19 are respectively connected with the first conductive base 1 and the second conductive base 10, one side of the second conductive base 10 is connected with a conductive swing arm 9, one side of the first conductive base 1 is connected with two groups of clamping guide conductive devices, the clamping guide conductive devices comprise a first linear conductive rod 2 and a second linear conductive rod 3, one end of the first linear conductive rod 2 and one end of the second linear conductive rod 3 are both connected with the first conductive base 1, the other end of the first linear conductive rod 2 is connected with a first arc conductive rod 5, second arc conducting rod 7 is connected to the other end of second straight line conducting rod 3, the direction of the arc of first arc conducting rod 5 and the direction of the arc of second arc conducting rod 7 all face electrically conductive swing arm 9, electrically conductive wheel 4 is all installed to the one end both sides of electrically conductive swing arm 9, one side and electrically conductive swing arm 9 turn-on connection of electrically conductive wheel 4, annular groove 18 is seted up to electrically conductive wheel 4's side week, two electrically conductive wheels 4 can cooperate with two sets of centre gripping direction conductive device respectively, in the centre gripping direction conductive device that corresponds with electrically conductive wheel 4, electrically conductive wheel 4 can be cliied in the cooperation of first straight line conducting rod 2 and second straight line conducting rod 3. The side part of the first linear conducting rod 2 in the same group of clamping and conducting device is connected with a first fixing plate 11, the side part of the second linear conducting rod 3 is connected with a second fixing plate 14, a screw hole is formed in the second fixing plate 14, the second fixing plate 14 is in threaded connection with a bolt 15 through the screw hole, a bearing 13 is installed at the end part of a screw rod of the bolt 15, an inner ring of the bearing 13 is connected with the bolt 15, an outer ring of the bearing 13 is connected with a spring 12, one end of the spring 12 is connected with the first fixing plate 11, and the spring 12 is in a stretching state.
The spring 12 of the invention can drive the first linear conducting rod 2 and the second linear conducting rod 3 to be tightened by utilizing the self-stretched contraction force, thereby improving the matching pressure of the first linear conducting rod 2 and the second linear conducting rod 3 with the conducting wheel 4, reducing the contact resistance between the first linear conducting rod 2 and the second linear conducting rod 3 with the conducting wheel 4 and improving the matching effect. The user can be through screwing bolt 15 to the tensile volume of adjusting spring 12, thereby adjust the pulling force of spring 12 according to actual need, thereby adjust first straight line conducting rod 2, second straight line conducting rod 3 and conductive wheel 4 cooperation effect.
Example 3:
a GW4 type disconnecting switch for reducing the number of defects of a heating conductive loop, as shown in figures 1-4, comprises a base 20, a conductive contact finger and a conductive contact, wherein the conductive contact finger comprises a first conductive base 1, the conductive contact comprises a second conductive base 10, two insulating columns 19 are connected on the base 20, the upper ends of the insulating columns 19 are connected with rotating motors 18, output shafts of the two rotating motors 18 on the two insulating columns 19 are respectively connected with the first conductive base 1 and the second conductive base 10, one side of the second conductive base 10 is connected with a conductive swing arm 9, one side of the first conductive base 1 is connected with two groups of clamping guide conductive devices, the clamping guide conductive devices comprise a first linear conductive rod 2 and a second linear conductive rod 3, one end of the first linear conductive rod 2 and one end of the second linear conductive rod 3 are both connected with the first conductive base 1, the other end of the first linear conductive rod 2 is connected with a first arc conductive rod 5, second arc conducting rod 7 is connected to the other end of second straight line conducting rod 3, the direction of the arc of first arc conducting rod 5 and the direction of the arc of second arc conducting rod 7 all face electrically conductive swing arm 9, electrically conductive wheel 4 is all installed to the one end both sides of electrically conductive swing arm 9, one side and electrically conductive swing arm 9 turn-on connection of electrically conductive wheel 4, annular groove 18 is seted up to electrically conductive wheel 4's side week, two electrically conductive wheels 4 can cooperate with two sets of centre gripping direction conductive device respectively, in the centre gripping direction conductive device that corresponds with electrically conductive wheel 4, electrically conductive wheel 4 can be cliied in the cooperation of first straight line conducting rod 2 and second straight line conducting rod 3. The end part of the first arc-shaped conducting rod 5 and the end part of the second arc-shaped conducting rod 7 are both connected with a first spherical guide block 6.
The first spherical guide block 6 can enable the end parts of the first arc-shaped conducting rod 5 and the second arc-shaped conducting rod 7 to be more smooth, and prevents the end parts of the first arc-shaped conducting rod 5 and the second arc-shaped conducting rod 7 from blocking the conducting wheel 4.
Example 4:
a GW4 type disconnecting switch for reducing the number of defects of a heating conductive loop, as shown in figures 1-4, comprises a base 20, a conductive contact finger and a conductive contact, wherein the conductive contact finger comprises a first conductive base 1, the conductive contact comprises a second conductive base 10, two insulating columns 19 are connected on the base 20, the upper ends of the insulating columns 19 are connected with rotating motors 18, output shafts of the two rotating motors 18 on the two insulating columns 19 are respectively connected with the first conductive base 1 and the second conductive base 10, one side of the second conductive base 10 is connected with a conductive swing arm 9, one side of the first conductive base 1 is connected with two groups of clamping guide conductive devices, the clamping guide conductive devices comprise a first linear conductive rod 2 and a second linear conductive rod 3, one end of the first linear conductive rod 2 and one end of the second linear conductive rod 3 are both connected with the first conductive base 1, the other end of the first linear conductive rod 2 is connected with a first arc conductive rod 5, second arc conducting rod 7 is connected to the other end of second straight line conducting rod 3, the direction of the arc of first arc conducting rod 5 and the direction of the arc of second arc conducting rod 7 all face electrically conductive swing arm 9, electrically conductive wheel 4 is all installed to the one end both sides of electrically conductive swing arm 9, one side and electrically conductive swing arm 9 turn-on connection of electrically conductive wheel 4, annular groove 18 is seted up to electrically conductive wheel 4's side week, two electrically conductive wheels 4 can cooperate with two sets of centre gripping direction conductive device respectively, in the centre gripping direction conductive device that corresponds with electrically conductive wheel 4, electrically conductive wheel 4 can be cliied in the cooperation of first straight line conducting rod 2 and second straight line conducting rod 3. And a first silver conducting layer 16 is arranged on the outer sides of the first linear conducting rod 2 and the second linear conducting rod 3.
The first silver conducting layer 16 is arranged on the outer sides of the first linear conducting rod 2 and the second linear conducting rod 3, so that the contact resistance of the first linear conducting rod 2, the second linear conducting rod 3 and the conducting wheel 4 can be reduced.
Example 5:
a GW4 type disconnecting switch for reducing the number of defects of a heating conductive loop, as shown in figures 1-4, comprises a base 20, a conductive contact finger and a conductive contact, wherein the conductive contact finger comprises a first conductive base 1, the conductive contact comprises a second conductive base 10, two insulating columns 19 are connected on the base 20, the upper ends of the insulating columns 19 are connected with rotating motors 18, output shafts of the two rotating motors 18 on the two insulating columns 19 are respectively connected with the first conductive base 1 and the second conductive base 10, one side of the second conductive base 10 is connected with a conductive swing arm 9, one side of the first conductive base 1 is connected with two groups of clamping guide conductive devices, the clamping guide conductive devices comprise a first linear conductive rod 2 and a second linear conductive rod 3, one end of the first linear conductive rod 2 and one end of the second linear conductive rod 3 are both connected with the first conductive base 1, the other end of the first linear conductive rod 2 is connected with a first arc conductive rod 5, second arc conducting rod 7 is connected to the other end of second straight line conducting rod 3, the direction of the arc of first arc conducting rod 5 and the direction of the arc of second arc conducting rod 7 all face electrically conductive swing arm 9, electrically conductive wheel 4 is all installed to the one end both sides of electrically conductive swing arm 9, one side and electrically conductive swing arm 9 turn-on connection of electrically conductive wheel 4, annular groove 18 is seted up to electrically conductive wheel 4's side week, two electrically conductive wheels 4 can cooperate with two sets of centre gripping direction conductive device respectively, in the centre gripping direction conductive device that corresponds with electrically conductive wheel 4, electrically conductive wheel 4 can be cliied in the cooperation of first straight line conducting rod 2 and second straight line conducting rod 3. And a second silver conducting layer 17 is arranged on the outer side of the conducting wheel 4.
The second silver conducting layer 17 arranged on the outer side of the conducting wheel 4 can reduce the contact resistance of the first linear conducting rod 2, the second linear conducting rod 3 and the conducting wheel 4.
The GW4 type disconnecting switch is a main equipment type adopted by 35kV reactive compensation equipment in a 500kV transformer substation, and accounts for 98% of the equipment type in our company. And the heating frequency of the conductive loop of the GW4 type isolating switch accounts for 89% of that of the 35kV reactive compensation equipment. The heating defect of the GW4 type disconnecting switch easily causes the equipment performance to be aged quickly, and even causes fire when the equipment performance is serious. The heating defects of the GW4 type disconnecting switch are caused by the following reasons: 1. the silver coating at the contact finger of the contact is damaged; 2. the contact finger has poor decontamination capability (the silver coating of the contact finger is oxidized or the dust adsorbed by the action of an electric field and the like can not be effectively removed in the closing process); 3. the contact fingers have insufficient clamping force due to corrosion and mechanical fatigue. The traditional mode of eliminating GW4 type isolator defect of generating heat is that directly hinder the value measurement to former equipment, maintains and changes damage, low performance part, but the tradition mode of eliminating defect still faces the condition that the number of times of generating heat is high, and equipment generates heat and damages and takes place occasionally, consequently needs seek a more reasonable switch and reforms transform the design scheme.
The invention provides a GW4 type isolating switch for reducing the defect frequency of a heating conductive circuit, which solves the problem of high heating frequency of an isolating switch of a reactive power compensation device in a transformer substation by improving the performance of a key part of the heating conductive circuit of the GW4 type isolating switch.
In order to achieve the purpose, the invention provides the following technical scheme for reforming the conductive loop of the GW4 type isolating switch:
the contact finger adopts a point contact mode, so that the contact area of the contact finger is effectively reduced, the self-cleaning capability of the contact finger in the switching-on process is improved, and the dust collected and adsorbed at the contact finger of the contact finger can be effectively cleaned and switched on a clean contact surface. In a field fouling test, when a contact finger is subjected to 3000 times of separation and combination tests, the initial value difference (test value-initial value)/initial value 100%) of the contact finger always meets the requirement in the specification Q/GDW 1168 plus 2013 'maintenance test specification for the state of power transmission and transformation equipment', and the initial value difference of the resistance of a main loop of an isolating switch device is less than 2%.
In the closing process of the contact finger, dust and other impurities accumulated at the contact finger are removed through effective relative sliding, and the contact finger is closed on the surface of a clean silver coating layer, so that good conduction of electric energy is realized.
The contact finger adopts the alloy copper as the contact finger material on the basis of a point contact mode, and can provide stronger clamping force. When effectively avoiding adopting the spring to provide the clamp force scheme under the traditional mode, the clamp force that spring corrosion, mechanical fatigue caused is not enough, arouses the defect of generating heat. In a field practical test, after 3000 times of opening and closing experiments are carried out on contact fingers, the clamping force of the contact fingers meets the requirements of technical specifications of DLT 486-2010 high-voltage alternating-current isolating switch and grounding switch, the mechanical life of the opening and closing times of the isolating switch is not lower than 2000 times, and the clamping force of the contact fingers of the isolating switch with the rated current of 2600A is not lower than 690N.
The silver coating at the contact finger of the contact is subjected to graphite silver coating treatment, the thickness of the graphite silver coating reaches 30 mu m, and the graphite silver coating has good conductivity and lubricity and can effectively meet the heating defect caused by thinning of the silver coating due to current carrying capacity, silver coating abrasion and the like caused by combination in operation. Meanwhile, the lubricating property of the silver plating of the graphite reduces the use of the lubricating grease, and the adsorption effect of the lubricating grease on dust is reduced. In actual field tests, after 3000 times of separation and combination experiments are carried out on contact fingers, the thickness of a silver coating layer can still reach 20 micrometers required by GB/T27751-2011 silver-nickel graphite electrical contact technical conditions.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention.
Claims (3)
1. Reduce GW4 type isolator of conductive loop defect number of times that generates heat, its characterized in that: the conductive contact finger comprises a first conductive base (1), the conductive contact finger comprises a second conductive base (10), two insulating columns (19) are connected to the base (20), rotating motors (18) are connected to the upper ends of the insulating columns (19), output shafts of the two rotating motors (18) on the two insulating columns (19) are respectively connected with the first conductive base (1) and the second conductive base (10), one side of the second conductive base (10) is connected with a conductive swing arm (9), one side of the first conductive base (1) is connected with two groups of clamping guide conductive devices, each clamping guide conductive device comprises a first linear conductive rod (2) and a second linear conductive rod (3), one end of the first linear conductive rod (2) and one end of the second linear conductive rod (3) are both connected with the first conductive base (1), the other end of the first linear conductive rod (2) is connected with a first arc-shaped conductive rod (5), the other end of the second straight line conducting rod (3) is connected with a second arc conducting rod (7), the direction of the arc of the first arc conducting rod (5) and the direction of the arc of the second arc conducting rod (7) both face a conducting swing arm (9), two sides of one end of the conducting swing arm (9) are respectively provided with a conducting wheel (4), one side of each conducting wheel (4) is in conducting connection with the conducting swing arm (9), the side circumference of each conducting wheel (4) is provided with an annular groove (18), the two conducting wheels (4) can be respectively matched with two groups of clamping guide conducting devices, in the clamping guide conducting devices corresponding to the conducting wheels (4), the first straight line conducting rod (2) and the second straight line conducting rod (3) can be matched to clamp the conducting wheels (4), the side part of the first straight line conducting rod (2) in the same group of clamping guide conducting devices is connected with a first fixing plate (11), the side part of the second straight line conducting rod (3) is connected with a second fixing plate (14), the screw hole is formed in the second fixing plate (14), the second fixing plate (14) is connected with a bolt (15) through screw threads, a bearing (13) is installed at the end part of a screw rod of the bolt (15), an inner ring of the bearing (13) is connected with the bolt (15), an outer ring of the bearing (13) is connected with a spring (12), one end of the spring (12) is connected with the first fixing plate (11), the spring (12) is in a stretching state, and the end part of the first arc-shaped conducting rod (5) and the end part of the second arc-shaped conducting rod (7) are connected with a first spherical guide block (6).
2. A GW4 type disconnector for reducing the number of heating-conducting loop defects according to claim 1, characterized in that: and a first silver conducting layer (16) is arranged on the outer sides of the first linear conducting rod (2) and the second linear conducting rod (3).
3. A GW4 type disconnector for reducing the number of heating-conducting loop defects according to claim 1, characterized in that: and a second silver conducting layer (17) is arranged on the outer side of the conducting wheel (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011545984.3A CN112713042A (en) | 2020-12-24 | 2020-12-24 | GW4 type isolating switch for reducing defect frequency of heating conductive loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011545984.3A CN112713042A (en) | 2020-12-24 | 2020-12-24 | GW4 type isolating switch for reducing defect frequency of heating conductive loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112713042A true CN112713042A (en) | 2021-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011545984.3A Pending CN112713042A (en) | 2020-12-24 | 2020-12-24 | GW4 type isolating switch for reducing defect frequency of heating conductive loop |
Country Status (1)
| Country | Link |
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| CN (1) | CN112713042A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124629A (en) * | 2014-07-28 | 2014-10-29 | 国家电网公司 | Special tool for disassembling and assembling static contact spring of disconnecting switch |
| CN204117927U (en) * | 2014-07-24 | 2015-01-21 | 厦门理工学院 | A kind of structure-improved of high voltage isolator |
| WO2015082306A1 (en) * | 2013-12-04 | 2015-06-11 | Siemens Aktiengesellschaft | Alternating-voltage load-disconnecting switch for contact lines of a railway power supply network and method for operating an alternating-voltage load-disconnecting switch |
| CN105762000A (en) * | 2016-04-06 | 2016-07-13 | 中国船舶重工集团公司第七〇二研究所 | DC load isolation switch |
| CN211907306U (en) * | 2020-03-05 | 2020-11-10 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Closing guide device of isolating switch |
-
2020
- 2020-12-24 CN CN202011545984.3A patent/CN112713042A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015082306A1 (en) * | 2013-12-04 | 2015-06-11 | Siemens Aktiengesellschaft | Alternating-voltage load-disconnecting switch for contact lines of a railway power supply network and method for operating an alternating-voltage load-disconnecting switch |
| CN204117927U (en) * | 2014-07-24 | 2015-01-21 | 厦门理工学院 | A kind of structure-improved of high voltage isolator |
| CN104124629A (en) * | 2014-07-28 | 2014-10-29 | 国家电网公司 | Special tool for disassembling and assembling static contact spring of disconnecting switch |
| CN105762000A (en) * | 2016-04-06 | 2016-07-13 | 中国船舶重工集团公司第七〇二研究所 | DC load isolation switch |
| CN211907306U (en) * | 2020-03-05 | 2020-11-10 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Closing guide device of isolating switch |
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Application publication date: 20210427 |