CN220585132U - Multi-layer disc type on-load voltage regulating switch - Google Patents
Multi-layer disc type on-load voltage regulating switch Download PDFInfo
- Publication number
- CN220585132U CN220585132U CN202322289081.9U CN202322289081U CN220585132U CN 220585132 U CN220585132 U CN 220585132U CN 202322289081 U CN202322289081 U CN 202322289081U CN 220585132 U CN220585132 U CN 220585132U
- Authority
- CN
- China
- Prior art keywords
- voltage regulating
- pressure regulating
- plate
- regulating
- rotating shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 203
- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 230000003068 static effect Effects 0.000 claims abstract description 22
- 230000008033 biological extinction Effects 0.000 abstract description 4
- 230000033001 locomotion Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model relates to a multi-layer disc type on-load voltage regulating switch, which comprises a base, an insulating seat, an insulating bottom plate and a voltage regulating rotating shaft, wherein the insulating seat is arranged on the base; one end of the insulating seat is covered with an insulating bottom plate, and the other end of the insulating seat is connected with the base; at least two pairs of vacuum switch tubes are distributed in the base; three extending parts are arranged on the pressure regulating moving plate at intervals along the circumferential direction of the pressure regulating moving plate, and each extending part is uniformly and correspondingly provided with a pressure regulating moving contact; at least two static contact groups arranged in staggered layers are arranged at intervals in the circumferential direction of the insulating seat; the vacuum switch tube is connected with the transmission shaft through a connecting plate, and the transmission shaft is sleeved on the periphery of the pressure regulating rotating shaft with the largest diameter; one end of the driving rotating plate is connected with the vacuum driving mechanism, and the other end is connected with the transmission shaft; the transmission shaft is provided with a plurality of transmission cards which are clamped with the movable contacts of the vacuum switch in a one-to-one correspondence manner. Therefore, the problems that the voltage regulating switch must have power-off operation and the voltage regulating effect is unstable when arc extinction is carried out are solved.
Description
Technical Field
The utility model belongs to the technical field of high-voltage switches, and relates to a multi-layer disc type on-load voltage regulating switch.
Background
The voltage regulating switch needs power failure operation when carrying out arc extinction, can cause the unstable voltage like this to influence equipment normal operating. When voltage regulation is performed, the contact is more, and the structure of the contact layer is huge and complex, so that the moving contact is difficult to quickly and accurately act on the moving contact, the voltage regulation efficiency is reduced, and the voltage regulation effect is unstable. To this, still need provide a more reasonable technical scheme to solve the problem that voltage regulating switch must have the power failure operation and voltage regulating effect is unstable when carrying out the arc extinction among the prior art.
Disclosure of Invention
The utility model aims to provide a multi-layer disc type on-load voltage regulating switch, which aims to solve the problems that in the prior art, the voltage regulating switch must have power-off operation and the voltage regulating effect is unstable when arc extinction is carried out.
In order to achieve the above purpose, the utility model provides a multi-layer disc type on-load voltage regulating switch, which comprises a base, an insulating seat and an insulating bottom plate; one end of the insulating seat is covered with the insulating bottom plate, and the other end of the insulating seat is connected with the base; at least two pairs of vacuum switch tubes are distributed in the base, wherein the static contacts of the vacuum switch tubes in each pair are oppositely arranged;
the multi-layer disc type on-load voltage regulating switch further comprises at least two voltage regulating rotating shafts with different diameters, wherein the voltage regulating rotating shafts are coaxially sleeved according to the sequence of the diameters, each voltage regulating rotating shaft is respectively provided with a voltage regulating moving plate, each voltage regulating moving plate is provided with three extending parts which are arranged at intervals along the circumferential direction of the voltage regulating moving plate, and each extending part is uniformly and correspondingly provided with a voltage regulating moving contact; at least two static contact groups arranged in staggered layers are arranged at intervals in the circumferential direction of the insulating seat, and each layer is provided with three voltage regulating static contact groups; each group comprises three pressure regulating static contacts which are arranged at equal intervals, so that the pressure regulating moving contact can be clamped on two pressure regulating static contacts at the same time;
the vacuum switch tube is connected to the transmission shaft through a connecting plate, and the transmission shaft is sleeved on the periphery of the pressure regulating rotating shaft with the largest diameter;
the other side of the base is provided with a cover body, a vacuum driving mechanism, a pressure regulating driving mechanism, a driving rotating plate and a pressure regulating rotating plate are arranged in the cover body, the pressure regulating driving mechanism and the pressure regulating rotating plate are arranged into at least two groups corresponding to each other, one end of the pressure regulating rotating plate is connected with the pressure regulating driving mechanism, the other end of the pressure regulating rotating plate is correspondingly connected with the pressure regulating rotating shaft, and when the pressure regulating rotating shaft rotates, the pressure regulating moving contact is sequentially connected with the two pressure regulating static contacts; one end of the driving rotating plate is connected with the vacuum driving mechanism, and the other end of the driving rotating plate is connected with the transmission shaft; the transmission shaft is provided with a plurality of transmission cards which are clamped with the moving contacts of the vacuum switch in a one-to-one correspondence manner, and when the transmission shaft rotates, the fixed contacts of the vacuum switch tube can be enabled to move through the transmission cards.
In one possible design, the voltage regulating moving contact comprises two contact blocks, the contact blocks are connected to the voltage regulating moving plate, a stop block is arranged between the two contact blocks, and the stop block is fixedly connected to the voltage regulating moving plate.
In one possible design, the pressure regulating moving contact further comprises a pressing spring, wherein the pressing spring is sleeved on the periphery of the positioning pin and presses against one of the contact blocks, and the positioning pin is inserted on the contact block and connected with the stop block.
In one possible design, the end of the voltage regulating static contact is formed as a curved surface.
In one possible design, the pressure regulating rotating shaft is provided with a flat clamping groove, and the pressure regulating rotating plate is sleeved at the flat clamping groove of the pressure regulating rotating shaft.
In one possible design, the pressure regulating rotating shaft is provided with a plurality of teeth arranged along the circumferential direction at intervals, the pressure regulating moving plate is provided with tooth grooves matched with the teeth, the pressure regulating moving plate is inserted into the pressure regulating rotating shaft, and the teeth are embedded into the tooth grooves.
Through the technical scheme, the voltage regulating static contacts are distributed on the circular side wall in the circular arc-shaped section, and the distribution positions of the contacts of each layer are staggered, so that wiring can be facilitated. The voltage regulating moving contact is arranged on the voltage regulating moving plate, and the voltage regulating moving plate is rigidly connected with the voltage regulating rotating shaft, and the voltage regulating rotating shaft is coaxially arranged with the inner hole of the insulating seat, so that the voltage regulating moving contact can be driven to rotate by the rotation of the voltage regulating rotating shaft, and the movement track of the voltage regulating moving contact is an arc concentric with the side wall of the inner hole of the insulating seat.
The vacuum arc-extinguishing layer distributes 6 vacuum arc-extinguishing chambers, every 2 vacuum arc-extinguishing chambers are a set of, the moving end inwards is arranged concentrically, and 3 sets of evenly distributed are around the vacuum rotating shaft. When the vacuum driving mechanism drives the transmission shaft to rotate through the driving rotating plate, the transmission card enables the static contact of the vacuum switch tube to move. In two vacuum switch tubes that set up in pairs, when the direction of moving contact is moved to the static contact of one of them vacuum switch tube, the static contact of another vacuum switch tube deviates from the direction of moving contact and removes, reaches uninterrupted arc extinguishing effect from this.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a multi-layer disc type on-load voltage regulating switch provided by the utility model in a use state;
FIG. 2 is a schematic diagram of an explosion structure of a multi-layer disc type on-load voltage regulating switch according to an embodiment of the present utility model;
FIG. 3 is an enlarged schematic view of the portion A of FIG. 2;
fig. 4 is a schematic diagram of an explosion structure of a multi-layer disc type on-load voltage regulating switch in an embodiment according to the present utility model, and the direction of the disclosure shown in fig. 4 is different from that shown in fig. 2;
FIG. 5 is an enlarged schematic view of the structure of portion B in FIG. 4;
FIG. 6 is a schematic side view of a multi-layer disc type on-load tap changer according to one embodiment of the utility model with an insulating bottom plate removed for illustrating the internal structure;
fig. 7 is a schematic perspective view of a multi-layer disc type on-load voltage regulating switch according to an embodiment of the present utility model, in which an insulating bottom plate is removed to show an internal structure;
fig. 8 is a schematic bottom view of a multi-layer disc type on-load voltage regulating switch according to an embodiment of the present utility model, in which an insulating base is removed to show an internal structure;
FIG. 9 is a schematic top view of a multi-layer disc type on-load tap changer according to an embodiment of the utility model, with the cover removed to show the internal structure;
FIG. 10 is a schematic side view of a pressure regulating shaft, pressure regulating moving plate and pressure regulating moving contact in one embodiment;
FIG. 11 is a schematic top view of a pressure regulating shaft, pressure regulating moving plate and pressure regulating moving contact in one embodiment;
FIG. 12 is a schematic perspective view of a pressure regulating shaft, a pressure regulating moving plate and a pressure regulating moving contact in one embodiment;
fig. 13 is a schematic perspective view of a voltage regulating shaft, a voltage regulating moving plate, a base, a voltage regulating moving contact and a voltage regulating static contact in an embodiment.
In the above figures: the device comprises a 1-base, a 2-insulating seat, a 3-insulating bottom plate, a 4-cover body, a 5-vacuum switch tube, a 61-voltage regulating rotating shaft, a 62-voltage regulating moving plate, a 63-voltage regulating moving plate, a 64-voltage regulating driving mechanism, a 71-transmission shaft, a 72-driving moving plate, a 73-vacuum driving mechanism, a 74-transmission card, a 81-voltage regulating fixed contact, a 82-voltage regulating moving contact, a 821-contact block, a 822-pressing spring and 823-positioning pins.
Detailed Description
The utility model will be further elucidated with reference to the drawings and to specific embodiments. The present utility model is not limited to these examples, although they are described in order to assist understanding of the present utility model.
Specific structural and functional details disclosed herein are merely representative for purposes of describing example embodiments of the present utility model. This utility model may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
According to a first aspect of the present disclosure, a multi-layer disc type on-load voltage regulating switch is provided. Fig. 1 to 13 show a specific embodiment of the multi-layer disc type on-load voltage regulating switch.
Referring to fig. 1 to 13, the multi-layer disc type on-load voltage regulating switch comprises a base 1, an insulating seat 2 and an insulating bottom plate 3; one end of the insulating seat 2 is covered with an insulating bottom plate 3, and the other end of the insulating seat 2 is connected with the base 1; at least two pairs of vacuum switch tubes 5 are distributed in the base 1, wherein in each pair of vacuum switch tubes 5, the fixed contacts of the vacuum switch tubes 5 are arranged oppositely (the moving contacts are opposite).
The multi-layer disc type on-load voltage regulating switch further comprises at least two voltage regulating rotating shafts 61 with different diameters, wherein the voltage regulating rotating shafts 61 are coaxially sleeved according to the sequence of the diameters, each voltage regulating rotating shaft 61 is respectively provided with a voltage regulating moving plate 62, each voltage regulating moving plate 62 is provided with three extending parts which are arranged at intervals along the circumferential direction of the voltage regulating moving plate 62, and each extending part is uniformly and correspondingly provided with a voltage regulating moving contact 82; at least two static contact groups arranged in staggered layers are arranged at intervals in the circumferential direction of the insulating seat 2, and each layer is provided with three voltage regulating static contact 81 groups; each group comprises three pressure regulating fixed contacts 81 which are arranged at equal intervals, so that the pressure regulating movable contact 82 can be clamped on the two pressure regulating fixed contacts 81 at the same time;
the vacuum switching tube 5 is connected to a transmission shaft 71 through a connection plate, and the transmission shaft 71 is sleeved on the outer periphery of the pressure regulating rotating shaft 61 with the largest diameter. The other side of the base 1 is provided with a cover body 4, the cover body 4 is internally provided with a vacuum driving mechanism 73, a pressure regulating driving mechanism 64, a driving rotating plate 72 and a pressure regulating rotating plate 63, the pressure regulating driving mechanism 64 and the pressure regulating rotating plate 63 are arranged into at least two groups corresponding to each other, one end of the pressure regulating rotating plate 63 is connected with the pressure regulating driving mechanism 64, the other end is correspondingly connected with the pressure regulating rotating shaft 61, and when the pressure regulating rotating shaft 61 rotates, the pressure regulating moving contact 82 can be sequentially connected with the two pressure regulating fixed contacts 81; one end of the driving rotary plate 72 is connected to the vacuum driving mechanism 73, and the other end is connected to the transmission shaft 71; the transmission shaft 71 is provided with a plurality of transmission cards 74 which are clamped with the moving contacts of the vacuum switch in a one-to-one correspondence manner, and when the transmission shaft 71 rotates, the fixed contacts of the vacuum switch tube 5 can be moved through the transmission cards 74.
Through the technical scheme, the voltage regulating static contacts 81 are distributed on the circular side wall in the circular arc-shaped section, and the distribution positions of the contacts of each layer are staggered, so that wiring can be facilitated. The voltage regulating moving contact 82 is installed on the voltage regulating moving plate 62, and because the voltage regulating moving plate 62 is rigidly connected with the voltage regulating rotating shaft 61 and the voltage regulating rotating shaft 61 is arranged coaxially with the inner hole of the insulating seat 2, the voltage regulating moving contact 82 can be driven to rotate by the rotation of the voltage regulating rotating shaft 61, and the movement track of the voltage regulating moving contact 82 is an arc concentric with the side wall of the inner hole of the insulating seat 2. The vacuum arc-extinguishing layer distributes 6 vacuum arc-extinguishing chambers, every 2 vacuum arc-extinguishing chambers are a set of, the moving end inwards is arranged concentrically, and 3 sets of evenly distributed are around the vacuum rotating shaft. When the vacuum driving mechanism 73 drives the transmission shaft 71 to rotate through the driving rotating plate 72, the transmission card 74 enables the fixed contact of the vacuum switch tube 5 to move. In the two vacuum switch tubes 5 arranged in pairs, when the static contact of one vacuum switch tube 5 moves towards the direction of the moving contact, the static contact of the other vacuum switch tube 5 moves away from the direction of the moving contact, thereby achieving the uninterrupted arc extinguishing effect.
In practical application, the insulating base 2 and the base 1 are arranged at the lower part of the oil surface and are insulated by the transformer, and the cover body 4 is arranged at the upper part of the oil surface, so that friction generated by mechanical movement can be avoided to pollute the transformer oil. The pressure regulating driving mechanism 64 drives one or more of the pressure regulating rotating plates 63 to rotate, and the concentric pressure regulating rotating shaft 61 is rigidly connected with the pressure regulating rotating plates 62, so that different rotating plates can be respectively driven to rotate when the pressure regulating rotating shaft 61 rotates, thereby achieving the purpose of on-load pressure regulation.
In one embodiment provided by the present disclosure, the voltage regulating moving contact 82 includes two contact blocks 821, each contact block 821 is connected to the voltage regulating moving plate 62, and a stop block is disposed between the two contact blocks 821 and is fixedly connected to the voltage regulating moving plate 62, so that when the voltage regulating moving plate 62 rotates, the contact blocks 821 can be contacted with the voltage regulating fixed contact 81, and the two contact blocks can be effectively contacted.
Further, the pressure regulating moving contact 82 further includes a pressing spring 822, where the pressing spring 822 is sleeved on the outer periphery of the positioning pin 823 and presses against one of the contact blocks 821, and the positioning pin 823 is inserted on the contact block 821 and connected to the stop block. In this way, the contact block 821 can be abutted against the contact block 821 by the elastic force of the abutting spring 822, so that the stability of the relative positions of the two contact blocks 821 is maintained, the contact block 821 can effectively act on the pressure regulating fixed contact 81, and the pressure regulating moving contact 82 and the pressure regulating fixed contact 81 can be ensured to be firmly contacted.
In the present disclosure, the end of the voltage regulating fixed contact 81 is formed as a curved surface. The curved surface design can play a certain guiding effect, so that the curved surface effectively keeps the line-surface contact relation with the pressure regulating moving contact 82, the pressure regulating moving contact 82 can move smoothly, and friction force is reduced.
In one embodiment provided in the present disclosure, the pressure regulating rotating shaft 61 is provided with a flat clamping groove, and the pressure regulating rotating plate 63 is sleeved on the flat clamping groove of the pressure regulating rotating shaft 61, so that the pressure regulating rotating shaft 61 is clamped. Therefore, when the pressure regulating driving mechanism 64 pushes the pressure regulating rotating plate 63 to rotate, the pressure regulating rotating shaft 61 can be driven to effectively rotate.
In the present disclosure, the pressure-adjusting driving mechanisms 64 are arranged in three groups, and the pressure-adjusting rotating shaft 61 and the pressure-adjusting moving plate 62 are arranged in corresponding three groups. In practical application, one end of the pressure regulating rotating shaft 61 is connected to the pressure regulating driving mechanism 64 through the pressure regulating rotating plate 63, and the other end of the pressure regulating rotating shaft 61 is fixedly connected to the pressure regulating moving plate 62. So that the voltage regulating driving mechanism 64 can respectively and indirectly drive the voltage regulating moving contact 82 to rotate. The vacuum switching tubes 5 are arranged in three pairs.
In one embodiment provided by the present disclosure, the pressure regulating rotating shaft 61 is provided with a plurality of teeth arranged along the circumferential direction at intervals, the pressure regulating moving plate is provided with tooth grooves adapted to the teeth, the pressure regulating moving plate is inserted on the pressure regulating rotating shaft 61, and the teeth are embedded in the tooth grooves, so that the torque of the pressure regulating rotating shaft 61 is guaranteed, slipping is prevented, and the pressure regulating rotating shaft 61 can drive the pressure regulating moving plate 62 to rotate stably and reliably.
The voltage-regulating driving mechanism 64 is configured as a dual-state permanent magnet linear driving mechanism, and the voltage-regulating rotating shaft 61 can be driven to rotate by pushing the voltage-regulating rotating plate 63, thereby converting the linear motion of the voltage-regulating driving mechanism 64 into the rotational motion of the voltage-regulating rotating shaft 61.
The vacuum driving mechanism 73 is configured as a single-state spring linear driving mechanism, and the driving rotating shaft can be driven to rotate by pushing the driving rotating plate 72, so that the linear motion of the vacuum driving mechanism 73 is converted into the rotary motion of the transmission shaft 71.
It should be noted that the present utility model is not limited to the above alternative embodiments, and any person can obtain other various forms of products under the teaching of the present utility model. The above detailed description should not be construed as limiting the scope of the utility model, which is defined in the claims and the description may be used to interpret the claims.
Claims (6)
1. The multi-layer disc type on-load voltage regulating switch is characterized by comprising a base (1), an insulating seat (2) and an insulating bottom plate (3); one end of the insulating seat (2) is covered with the insulating bottom plate (3), and the other end of the insulating seat (2) is connected with the base (1); at least two pairs of vacuum switch tubes (5) are distributed in the base (1), wherein the fixed contacts of the vacuum switch tubes (5) in each pair of vacuum switch tubes (5) are oppositely arranged;
the multi-layer disc type on-load voltage regulating switch further comprises at least two voltage regulating rotating shafts (61) with different diameters, wherein the voltage regulating rotating shafts (61) are coaxially sleeved according to the order of the diameters, each voltage regulating rotating shaft (61) is respectively provided with a voltage regulating moving plate (62), each voltage regulating moving plate (62) is provided with three extending parts which are arranged at intervals along the circumferential direction of the voltage regulating moving plate, and each extending part is uniformly and correspondingly provided with a voltage regulating moving contact (82); at least two static contact groups arranged in staggered layers are arranged at intervals in the circumferential direction of the insulating seat (2), and each layer is provided with three voltage regulating static contact (81) groups; each group comprises three pressure regulating static contacts (81) which are arranged at equal intervals, so that the pressure regulating moving contacts (82) can be simultaneously clamped on the two pressure regulating static contacts (81);
the vacuum switch tube (5) is connected to the transmission shaft (71) through a connecting plate, and the transmission shaft (71) is sleeved on the periphery of the pressure regulating rotating shaft (61) with the largest diameter;
the other side of the base (1) is provided with a cover body (4), the cover body (4) is internally provided with a vacuum driving mechanism (73), a pressure regulating driving mechanism (64), a driving rotating plate (72) and a pressure regulating rotating plate (63), the pressure regulating driving mechanism (64) and the pressure regulating rotating plate (63) are arranged into at least two groups corresponding to each other, one end of the pressure regulating rotating plate (63) is connected with the pressure regulating driving mechanism (64), the other end of the pressure regulating rotating plate is correspondingly connected with the pressure regulating rotating shaft (61), and when the pressure regulating rotating shaft (61) rotates, the pressure regulating moving contact (82) can be sequentially connected with the two pressure regulating fixed contacts (81); one end of the driving rotating plate (72) is connected with the vacuum driving mechanism (73), and the other end is connected with the transmission shaft (71); and a plurality of transmission cards (74) which are clamped with the moving contacts of the vacuum switch in a one-to-one correspondence manner are arranged on the transmission shaft (71), and when the transmission shaft (71) rotates, the fixed contacts of the vacuum switch tube (5) can be enabled to move through the transmission cards (74).
2. The multi-layer disc type on-load voltage regulating switch according to claim 1, wherein the voltage regulating moving contact (82) comprises two contact blocks (821), the contact blocks (821) are connected to the voltage regulating moving plate (62), and a stop block is arranged between the two contact blocks (821), and the stop block is fixedly connected to the voltage regulating moving plate (62).
3. The multi-layer disc type on-load voltage regulating switch according to claim 2, wherein the voltage regulating moving contact (82) further comprises a pressing spring (822), the pressing spring (822) is sleeved on the periphery of the positioning pin (823) and presses against one of the contact blocks (821), and the positioning pin (823) is inserted on the contact block (821) and connected to the stop block.
4. The multi-layer disc type on-load voltage regulating switch according to claim 1, characterized in that the end of the voltage regulating stationary contact (81) is formed as a curved surface.
5. The multi-layer disc type on-load voltage regulating switch according to claim 1, wherein a flat clamping groove is formed in the voltage regulating rotating shaft (61), and the voltage regulating rotating plate (63) is sleeved at the flat clamping groove of the voltage regulating rotating shaft (61).
6. The multi-layer disc type on-load voltage regulating switch according to claim 1, wherein the voltage regulating rotating shaft (61) is provided with a plurality of teeth arranged at intervals along the circumferential direction of the voltage regulating rotating shaft, the voltage regulating moving plate is provided with tooth grooves matched with the teeth, the voltage regulating moving plate is inserted on the voltage regulating rotating shaft (61), and the teeth are embedded in the tooth grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322289081.9U CN220585132U (en) | 2023-08-24 | 2023-08-24 | Multi-layer disc type on-load voltage regulating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322289081.9U CN220585132U (en) | 2023-08-24 | 2023-08-24 | Multi-layer disc type on-load voltage regulating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220585132U true CN220585132U (en) | 2024-03-12 |
Family
ID=90118648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322289081.9U Active CN220585132U (en) | 2023-08-24 | 2023-08-24 | Multi-layer disc type on-load voltage regulating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220585132U (en) |
-
2023
- 2023-08-24 CN CN202322289081.9U patent/CN220585132U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2672495B1 (en) | Off-circuit tap changer | |
| CN220585132U (en) | Multi-layer disc type on-load voltage regulating switch | |
| CN212277052U (en) | Change-over switch | |
| CN205159133U (en) | Motor direct current switch | |
| CN207338170U (en) | A kind of vacuum on-load operation switch | |
| CN112936337A (en) | Memory alloy driven continuous mechanical arm | |
| CN207021165U (en) | A kind of and supporting polarity reversing switch of load ratio bridging switch | |
| CN210633694U (en) | Electromagnetic drive's parallel clamping device | |
| CN107221463A (en) | A kind of vacuum on-load operation switch | |
| CN116235270B (en) | Switching system, on-load tap changer and method for switching tap connections | |
| CN209747351U (en) | mining high-voltage electric phase-changing mechanism | |
| CN211828510U (en) | First device of duplex position contact | |
| CN113745014B (en) | On-load tap-changer's reciprocating type switching mechanism | |
| CN113838696A (en) | Push type switch | |
| CN207338226U (en) | A kind of motor drive mechanism | |
| CN217768144U (en) | Isolation contact and vacuum on-load tap-changer with same | |
| JPH01125812A (en) | On-load tap changer | |
| CN216528483U (en) | Double-station direct-acting contact device | |
| CN217333870U (en) | Linkage type contact of on-load tap-changer | |
| EP4044206A1 (en) | Contact unit and contact system for an on-load tap changer and on-load tap changer | |
| CN217641024U (en) | 36-system-coding multi-gear progressive signal device of tapping switch electric mechanism | |
| KR102628580B1 (en) | Switching system for on-load tap-changer, switching method of on-load tap-changer and tap connection of on-load tap-changer | |
| CN217035500U (en) | Closed non-gear single-ring rotary switch | |
| CN217468226U (en) | Linkage device of on-load tap-changer | |
| CN220628744U (en) | Cable clamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |