CN215578345U - Digitalized assembly of 10kV common-box type outdoor vacuum circuit breaker - Google Patents
Digitalized assembly of 10kV common-box type outdoor vacuum circuit breaker Download PDFInfo
- Publication number
- CN215578345U CN215578345U CN202122395531.3U CN202122395531U CN215578345U CN 215578345 U CN215578345 U CN 215578345U CN 202122395531 U CN202122395531 U CN 202122395531U CN 215578345 U CN215578345 U CN 215578345U
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- vacuum circuit
- plate
- conducting rod
- electronic transformer
- 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
Images
Landscapes
- Patch Boards (AREA)
Abstract
The utility model discloses a digital assembly of a 10kV common-box outdoor vacuum circuit breaker, which comprises a mounting rack, a post insulator, a wiring terminal, a conductive rod, an electronic transformer, an insulating shield, a digital conversion module and a bent busbar. Electronic transformer and the equal fixed mounting of post insulator are on the mounting bracket, the conducting rod is vertical to be passed electronic transformer and to be connected with electronic transformer's conductive row, and curved female arranging is installed to the lower extreme of conducting rod, curved female arranging is used for being connected with the leading-out terminal of the former vacuum circuit breaker who corresponds, the upper portion of conducting rod is connected with the outer end of the post insulator that the level set up, binding post installs the upper end at the conducting rod. The digital conversion module is installed on the installation frame and is respectively and electrically connected with the three electronic transformers. The utility model can realize the digital upgrading and reconstruction of the 10kV vacuum circuit breaker with lower hardware cost and construction cost, so that the original hardware facilities can be fully utilized.
Description
Technical Field
The utility model relates to a device for carrying out digital upgrading and transformation on a 10kV common-box type outdoor vacuum circuit breaker.
Background
The vacuum circuit breaker on the column is one of the most widely used electrical devices in the power system, and is widely used in the power distribution system in production and life.
In recent years, the trend of standardization and integration development of power distribution equipment is the primary and secondary equipment fusion of a power distribution network. The intellectualization of the power grid needs to upgrade primary equipment into intelligent power equipment, and secondary equipment needs to be upgraded into an intelligent control unit at the same time.
The mutual inductor is a dividing point for fusing high and low voltage for the first time and the second time, and when the fault judgment and data uploading of the power distribution network are carried out by the feeder terminal FTU of the secondary equipment, the stability, reliability and accuracy of the mutual inductor play a vital role in the safety of the power distribution network.
When the distribution automation is built in early stage, the common-box type vacuum circuit breakers installed in partial areas are reserved with automatic interfaces, but are not provided with automatic terminals, and the automatic function is not realized. In addition, the original non-primary and secondary fused vacuum circuit breaker and terminal only have interphase short-circuit fault processing capacity and do not meet the new functional requirements of single-phase earth fault processing, line loss monitoring and the like. With the deepening of the construction and application of the distribution automation, the common-box vacuum circuit breaker which is not provided with the automatic terminal and the terminal which has a long operation life and incomplete functions face the application requirements of newly configuring or upgrading the automatic terminal. In the upgrading process, not only an automatic terminal FTU needs to be added, but also an electronic transformer is used for replacing the original electromagnetic transformer, the digital transformation is realized, the digital acquisition and control are realized by matching with the automatic terminal FTU, and meanwhile, the stability, reliability and precision of the transformer are improved.
The current digital upgrading and transformation mode is to replace the whole common-box type vacuum circuit breaker with a novel vacuum circuit breaker with an electronic transformer. The upgrading mode has large workload and high cost, leads to complete invalidation of a large amount of original vacuum circuit breakers which can still normally work, and does not fully utilize hardware resources.
SUMMERY OF THE UTILITY MODEL
The utility model provides a digitalized assembly of a 10kV common-box type outdoor vacuum circuit breaker, which aims to: the electronic transformer is installed and combined with the traditional vacuum circuit breaker in an externally-hung connection mode, digital upgrading and transformation of the vacuum circuit breaker are achieved, and upgrading cost is reduced.
The technical scheme of the utility model is as follows:
a digitalized assembly of a 10kV common-box outdoor vacuum circuit breaker comprises a mounting rack, a post insulator, a wiring terminal, a conductive rod, an electronic transformer, an insulating shield, a digital conversion module and a bent busbar;
the mounting frame is provided with a mounting hole used for being connected with a box body of the original vacuum circuit breaker;
the post insulator, the wiring terminal, the conducting rod, the electronic transformer, the insulating shield and the bent busbar are all three parts and are divided into three groups which correspond to three outlet terminals of the original vacuum circuit breaker one by one; in each group: the electronic transformer and the post insulator are fixedly mounted on the mounting frame, the conducting rod vertically penetrates through the electronic transformer and is connected with a conducting bar of the electronic transformer, a bent busbar is mounted at the lower end of the conducting rod and is used for being connected with a leading-out end of a corresponding original vacuum circuit breaker, the upper portion of the conducting rod is connected with the outer end of the horizontally arranged post insulator, the wiring terminal is mounted at the upper end of the conducting rod, and the insulating shield is mounted at the bottom of the electronic transformer and covers the lower half portion of the conducting rod and the outer side of the bent busbar;
the digital conversion module is installed on the installation frame and is respectively and electrically connected with the three electronic transformers.
As a further improvement of the digitizing component: the mounting rack comprises a supporting plate, a connecting plate, a groove plate, a mounting plate, a side plate and a back plate;
the supporting plate and the groove plate are sequentially arranged up and down and are horizontally arranged, and the supporting plate is connected with the groove plate through a connecting plate; the supporting plate is used for being fixedly connected with the inner end of the post insulator; the section of the groove plate is U-shaped, the opening is backward, and three square holes which are correspondingly matched with the three electronic transformers one by one are formed in the front panel of the groove plate; the mounting plate is fixedly mounted at the bottom of the groove plate, and the mounting hole is formed in the mounting plate;
the side plate is connected with one end of the groove plate, and the digital conversion module is arranged on the front side of the side plate;
the outer edge of the side plate is provided with a wall plate, the back plate is installed on the rear side of the side plate and the groove plate, the side plate, the wall plate, the groove plate and the back plate enclose a cavity, and the cavity is used for arranging cables for connecting the digital conversion module and the electronic transformer.
As a further improvement of the digitizing component: the side plate is provided with a through hole in the area corresponding to the socket part on the digital conversion module, and the through hole comprises a rectangular part and a semicircular part, wherein the top of the semicircular part is connected with the bottom of the rectangular part.
As a further improvement of the digitizing component: the front side of curb plate is equipped with the support column that is used for supporting digital conversion module, the front end of support column is equipped with the screw hole, the screw hole is used for cooperateing with the bolt of fixed digital conversion module.
As a further improvement of the digitizing component: the mounting hole is a strip-shaped hole in a vertical direction.
As a further improvement of the digitizing component: the conducting rod is fixed at the outer end of the post insulator through a fixing clamp.
As a further improvement of the digitizing component: the conducting rod is connected with a conducting bar of the electronic transformer through a hoop.
As a further improvement of the digitizing component: the lower end of the conducting rod is flat and is connected with the bent busbar through a bolt and nut assembly.
Compared with the prior art, the utility model has the following beneficial effects: (1) the device fixes components such as an electronic transformer, a conducting rod, a digital conversion module and the like on the outer side of the original vacuum circuit breaker in an upgrading assembly mode through the mounting frame, the leading-out terminal is prolonged through the conducting rod, the electronic transformer is used for detecting the current (and voltage) passing through the conducting rod, the digital conversion module is used for completing the conversion of detection signals and transmitting the detection signals to an external FTU (fiber to the user) for further controlling the circuit breaker, the electromagnetic transformer in the original vacuum circuit breaker is replaced, the rest parts of the circuit breaker are reserved, the digital upgrading and transformation of the circuit breaker are realized at lower hardware cost and construction cost, and the original hardware facilities are fully utilized; (2) the upper end of the conducting rod is supported through the post insulator, so that the impact on the electronic transformer when the conducting cable, the breaker and the like shake is reduced; (3) the insulating shield is used for covering exposed parts such as the bent busbar and the like, so that the bent busbar and the like are prevented from discharging to the mutual inductor, and the insulating requirement is ensured; (4) the lower end of the conducting rod is flattened by adopting a flattening process and then is connected with the bent busbar, so that the contact area is increased, and the contact resistance is reduced.
Drawings
FIG. 1 is one of the perspective views of the present apparatus;
FIG. 2 is a second perspective view of the apparatus;
FIG. 3 is an enlarged view of a portion A of FIG. 1;
FIG. 4 is a perspective view of one of the mounts (excluding the back plate);
FIG. 5 is a second perspective view of the mounting bracket (excluding the backing plate);
FIG. 6 is one of the perspective views of the present apparatus mounted on the original vacuum circuit breaker;
fig. 7 is a second perspective view of the present apparatus mounted on a conventional vacuum circuit breaker.
Detailed Description
The technical scheme of the utility model is explained in detail in the following with the accompanying drawings:
a digital component of a 10kV common box type outdoor vacuum circuit breaker is used for carrying out digital transformation on an original vacuum circuit breaker in a plug-in component mode.
Referring to fig. 6 and 7, the original vacuum circuit breaker 11 includes a box 11-2, and three groups of incoming line terminals 11-1 and three groups of outgoing line terminals 11-3 respectively disposed at two ends of the box 11-2. A switch and an electromagnetic mutual inductor are arranged in the box body 11-2. The purpose of digital upgrading and transformation is to replace the original electromagnetic transformer with the electronic transformer 7 and complete digital conversion of detection signals, so that an external FTU (mature existing product, not part of the assembly) can automatically control the circuit breaker according to the digital signals.
As shown in fig. 1, 2, 6 and 7, the digitizing module includes a mounting rack 1, a post insulator 2, a connecting terminal 3, a conductive rod 4, an electronic transformer 7, an insulating shield 8, a digital conversion module 9 and a curved busbar 10.
The post insulator 2, the wiring terminal 3, the conducting rod 4, the electronic transformer 7, the insulating shield 8 and the bent busbar 10 are all three parts, and are divided into three groups (corresponding to A, B, C three phases respectively) corresponding to three outlet ends 11-3 of the original vacuum circuit breaker 11 one by one.
Referring to fig. 4 and 5, the mounting bracket 1 includes a support plate 1-1, a connection plate 1-2, a groove plate 1-4, a mounting plate 1-5, a side plate 1-7, and a back plate 1-9.
The supporting plate 1-1 and the groove plate 1-4 are arranged in sequence from top to bottom and are both horizontally arranged. The supporting plate 1-1 is in a bent plate shape, three groups of equidistant round holes are formed in the supporting plate, and the supporting plate is opposite to the inner ends of the three supporting insulators 2, so that the supporting insulators 2 are installed and connected.
The supporting plate 1-1 is connected with the groove plate 1-4 through a connecting plate 1-2 (bent plate shape). The cross section of each groove plate 1-4 is U-shaped, the opening is backward, three square holes 1-3 which are matched with the three electronic transformers 7 in a one-to-one correspondence mode are formed in the front panel of each groove plate 1-4, and during installation, the square parts at the rear ends of the electronic transformers 7 are inserted into the square holes 1-3, so that the transformers are prevented from shaking.
The mounting plate 1-5 (bent plate shape) is fixedly mounted at the bottom of the groove plate 1-4, and the mounting plate 1-5 is provided with vertical strip-shaped mounting holes. A mounting seat is arranged on a box body 11-2 of an original vacuum circuit breaker 11, a horizontal threaded hole is formed in the mounting seat, the mounting frame 1 is fixedly connected to the box body 11-2 through bolts penetrating through the mounting hole and the threaded hole, and the height of the whole mounting frame 1 can be adjusted through strip-shaped mounting holes.
Referring to fig. 3 to 5, the side plate 1-7 is connected to one end of the slot plate 1-4, and the digital conversion module 9 is installed at the front side of the side plate 1-7.
The outer edges of the side plates 1-7 are provided with wall plates, the back plates 1-9 are mounted on the rear sides of the side plates 1-7 and the groove plates 1-4, a cavity is defined by the side plates 1-7, the wall plates, the groove plates 1-4 and the back plates 1-9, and the cavity is used for arranging cables for connecting the digital conversion module 9 and the electronic transformer 7.
The digital conversion module 9 is installed at the front side of the side plates 1-7. The digital conversion module 9 (i.e. ADMU) is a mature product, and is used for converting the small signal output by the electronic transformer 7 into a digital signal that can be received by the FTU, so that the problem that transmission is easily interfered is solved.
Further, the areas of the side plates 1-7 corresponding to the socket parts of the digital conversion module 9 are provided with through holes 1-8, and the through holes 1-8 comprise rectangular parts and semicircular parts with the tops connected with the bottoms of the rectangular parts. The connection terminals on the receptacle are generally horizontally aligned and correspond to the rectangular portions to facilitate connection of the cables. However, the other end of the cable is provided with a round plug, so that the round plug can smoothly pass through the through holes 1-8, and the disassembly and the assembly are convenient.
Further, as shown in fig. 3 and 4, since most of the socket part on the digital conversion module 9 is a boss structure, the front side of the side plates 1 to 7 is further provided with support columns 1 to 6 for supporting the digital conversion module 9, and the height of the support columns 1 to 6 is consistent with the height of the boss, so as to provide stable support for the digital conversion module 9. Furthermore, threaded holes are formed in the front ends of the supporting columns 1-6 and used for being matched with bolts for fixing the digital conversion module 9.
As in fig. 1, 2, 6 and 7, for each phase: the conductive rod 4 vertically penetrates through the electronic transformer 7 and is connected with a conductive bar of the electronic transformer 7 through a hoop 6, the lower end of the conductive rod 4 is made into a flat shape through a flattening process, a bent busbar 10 is installed through a bolt and nut assembly, and the bent busbar 10 is used for being connected with a corresponding outlet end 11-3 of an original vacuum circuit breaker 11. The upper portion of conducting rod 4 is connected with the outer end of the post insulator 2 that sets up horizontally through fixation clamp 5, and the post insulator 2 except playing the insulating effect, can also support conducting rod 4 and mutual-inductor part. The connecting terminal 3 is arranged at the upper end of the conducting rod 4 in a clamping mode. Insulating guard 8 installs in electronic transformer 7's bottom and covers in conducting rod 4 the latter half and the female outside of arranging 10 of bending, prevents that the female row 10 of bending etc. from discharging to the transformer.
When upgrading and transforming, firstly, the electromagnetic mutual inductor in the box body 11-2 of the original vacuum circuit breaker 11 is short-circuited, the outlet end 11-3 is disconnected with an external line, then the assembly is arranged on the outer side of the box body 11-2, and the connecting terminal 3 is used as a new outlet end to be connected to the external line, so that the digital transformation of the original vacuum circuit breaker 11 is completed. Finally, the digital conversion module 9 is connected with an external FTU, and then the FTU is connected with an automatic control port on the original vacuum circuit breaker 11.
After upgrading and reconstruction, the electronic transformer 7 replaces the original electromagnetic transformer to detect the current on the line (if the combined transformer can also detect the voltage), and the detected signal is transmitted to the FTU after being converted into a digital signal through the digital conversion module 9 to control the circuit breaker.
For the mode of changing whole circuit breaker, reform transform through this subassembly, not only can realize the automation and the digitization of circuit breaker, can also remain most components in the original circuit breaker simultaneously and continue to use, saved a large amount of resources, reduced the upgrading cost.
Claims (8)
1. The utility model provides a box outdoor vacuum circuit breaker's digital subassembly altogether of 10kV which characterized in that: the device comprises a mounting rack (1), a post insulator (2), a wiring terminal (3), a conductive rod (4), an electronic transformer (7), an insulating shield (8), a digital conversion module (9) and a bent busbar (10);
the mounting rack (1) is provided with a mounting hole for connecting with a box body (11-2) of an original vacuum circuit breaker (11);
the post insulator (2), the wiring terminal (3), the conducting rod (4), the electronic transformer (7), the insulating shield (8) and the bent busbar (10) are all three parts and are divided into three groups which are in one-to-one correspondence with three outlet ends (11-3) of an original vacuum circuit breaker (11); in each group: the electronic transformer (7) and the post insulator (2) are fixedly mounted on the mounting frame (1), the conducting rod (4) vertically penetrates through the electronic transformer (7) and is connected with a conducting bar of the electronic transformer (7), a bent busbar (10) is mounted at the lower end of the conducting rod (4), the bent busbar (10) is used for being connected with a leading-out end (11-3) of a corresponding original vacuum circuit breaker (11), the upper portion of the conducting rod (4) is connected with the outer end of the horizontally arranged post insulator (2), the wiring terminal (3) is mounted at the upper end of the conducting rod (4), and the insulating shield (8) is mounted at the bottom of the electronic transformer (7) and covers the lower half of the conducting rod (4) and the outer side of the bent busbar (10);
the digital conversion module (9) is installed on the installation frame (1) and is respectively and electrically connected with the three electronic transformers (7).
2. The digitized assembly of a 10kV common box outdoor vacuum circuit breaker of claim 1, characterized in that: the mounting rack (1) comprises a supporting plate (1-1), a connecting plate (1-2), a groove plate (1-4), a mounting plate (1-5), a side plate (1-7) and a back plate (1-9);
the supporting plate (1-1) and the groove plate (1-4) are sequentially arranged up and down and are horizontally arranged, and the supporting plate (1-1) is connected with the groove plate (1-4) through a connecting plate (1-2); the supporting plate (1-1) is used for being fixedly connected with the inner end of the post insulator (2); the section of the groove plate (1-4) is U-shaped, the opening is backward, and three square holes (1-3) which are correspondingly matched with the three electronic transformers (7) one by one are formed in the front panel of the groove plate (1-4); the mounting plate (1-5) is fixedly mounted at the bottom of the groove plate (1-4), and the mounting hole is formed in the mounting plate (1-5);
the side plates (1-7) are connected with one ends of the groove plates (1-4), and the digital conversion module (9) is arranged on the front sides of the side plates (1-7);
the outer edges of the side plates (1-7) are provided with wall plates, the back plates (1-9) are installed on the rear sides of the side plates (1-7) and the groove plates (1-4), the side plates (1-7), the wall plates, the groove plates (1-4) and the back plates (1-9) enclose a cavity, and the cavity is used for arranging cables for connecting the digital conversion module (9) and the electronic transformer (7).
3. The digitized assembly of a 10kV common box outdoor vacuum circuit breaker of claim 2, characterized in that: the side plates (1-7) are provided with through holes (1-8) in the areas corresponding to the socket parts on the digital conversion modules (9), and the through holes (1-8) comprise rectangular parts and semicircular parts, wherein the tops of the semicircular parts are connected with the bottoms of the rectangular parts.
4. The digitized assembly of a 10kV common box outdoor vacuum circuit breaker of claim 2, characterized in that: the front side of the side plate (1-7) is provided with a support column (1-6) for supporting the digital conversion module (9), the front end of the support column (1-6) is provided with a threaded hole, and the threaded hole is used for being matched with a bolt for fixing the digital conversion module (9).
5. Digitized assembly of a 10kV common box outdoor vacuum circuit breaker according to any of claims 1 to 4, characterized in that: the mounting hole is a strip-shaped hole in a vertical direction.
6. Digitized assembly of a 10kV common box outdoor vacuum circuit breaker according to any of claims 1 to 4, characterized in that: the conducting rod (4) is fixed at the outer end of the post insulator (2) through a fixing clamp (5).
7. Digitized assembly of a 10kV common box outdoor vacuum circuit breaker according to any of claims 1 to 4, characterized in that: the conducting rod (4) is connected with a conducting bar of the electronic transformer (7) through a hoop (6).
8. Digitized assembly of a 10kV common box outdoor vacuum circuit breaker according to any of claims 1 to 4, characterized in that: the lower end of the conducting rod (4) is flat and is connected with the bent busbar (10) through a bolt and nut assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122395531.3U CN215578345U (en) | 2021-09-30 | 2021-09-30 | Digitalized assembly of 10kV common-box type outdoor vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122395531.3U CN215578345U (en) | 2021-09-30 | 2021-09-30 | Digitalized assembly of 10kV common-box type outdoor vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215578345U true CN215578345U (en) | 2022-01-18 |
Family
ID=79853018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122395531.3U Active CN215578345U (en) | 2021-09-30 | 2021-09-30 | Digitalized assembly of 10kV common-box type outdoor vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215578345U (en) |
-
2021
- 2021-09-30 CN CN202122395531.3U patent/CN215578345U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101150246B (en) | 110kV and higher modular transformer substation and its construction method | |
| CN215578345U (en) | Digitalized assembly of 10kV common-box type outdoor vacuum circuit breaker | |
| US20220231488A1 (en) | Tower mounted high voltage switchgear | |
| CN202268645U (en) | Gas-insulated metal-enclosed switch equipment | |
| KR200393273Y1 (en) | Connector for clamping vertical busber of switch board | |
| CN207624935U (en) | A kind of three-phase structure of copper bar of photovoltaic distribution cabinet | |
| CN207398378U (en) | A kind of bus adaption device for breaker | |
| CN203644690U (en) | Circuit breaker position state signal acquisition and transmission device | |
| CN203456778U (en) | Metering handcart matching high tension switchgear | |
| CN114364181A (en) | Power grid primary and secondary fusion analog-to-digital conversion system and module plug-in and locking structure thereof | |
| CN210156742U (en) | Low-voltage fixed-interval cabinet | |
| CN208847765U (en) | A kind of multifunction power monitoring device | |
| CN219979413U (en) | Low-voltage electric appliance switch socket | |
| CN207398037U (en) | For the bus adaption device of breaker | |
| CN201118038Y (en) | Adapters and its low-voltage automatic air circuit breaker | |
| CN215680515U (en) | Digital module of 10kV strut type high-voltage switch | |
| CN221080986U (en) | Device for realizing centralized monitoring of internal loop of railway box-type substation | |
| CN219874503U (en) | Low-voltage power distribution cabinet | |
| CN220341776U (en) | Large-scale switch cabinet anti-off-line structure applied to construction site | |
| CN217182692U (en) | Integrated multifunctional power distribution unit | |
| CN214849554U (en) | Intelligent module for transformation and upgrading of power distribution system | |
| CN220138944U (en) | Large-scale switch cabinet easy-wiring structure applied to construction site | |
| CN217405925U (en) | Novel digital switch cabinet | |
| CN218602350U (en) | Circuit breaker | |
| CN221102705U (en) | Switch cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |