CN221057340U - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
- Publication number
- CN221057340U CN221057340U CN202323047830.3U CN202323047830U CN221057340U CN 221057340 U CN221057340 U CN 221057340U CN 202323047830 U CN202323047830 U CN 202323047830U CN 221057340 U CN221057340 U CN 221057340U
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- detection sensor
- voltage live
- live detection
- information feedback
- 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
- 238000001514 detection method Methods 0.000 claims abstract description 121
- 230000005540 biological transmission Effects 0.000 claims description 23
- 238000012806 monitoring device Methods 0.000 claims description 13
- 206010014357 Electric shock Diseases 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000012550 audit Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Breakers (AREA)
Abstract
The utility model provides a circuit breaker. The circuit breaker comprises a circuit breaker body and a high-voltage live detection device, wherein the circuit breaker body comprises an on-off mechanism, and the on-off mechanism is used for switching on or off the current of a circuit system connected with the circuit breaker; the high-voltage live detection device comprises a high-voltage live detection sensor, a fixed support and an information feedback device, wherein the high-voltage live detection sensor is connected to the on-off mechanism through the fixed support, the information feedback device is electrically connected with the high-voltage live detection sensor and is arranged on the circuit breaker body, the high-voltage live detection sensor is used for detecting whether the on-off mechanism is electrified or not, and the detected detection result is sent to the information feedback device, and is reproduced through the information feedback device so as to prompt. The user can acquire whether the information of electrification on the on-off mechanism of the circuit breaker, and when the user maintains or operates other operations, the on-off mechanism is not electrified, so that electric shock or electric leakage is avoided, and the safety of personnel and equipment is ensured.
Description
Technical Field
The application relates to the technical field of high-voltage networks, in particular to a circuit breaker.
Background
The circuit breaker is a switching device capable of carrying, closing and opening a normal current of an operation line and carrying, closing and opening a specified abnormal current (such as a short-circuit current) within a specified time, and is an important electrical device for protecting and operating an electric power system. The circuit breaker comprises a high-voltage circuit breaker and a low-voltage circuit breaker which are respectively applied to circuit systems with different voltages. The high-voltage circuit breaker can comprise an on-off element, an operating mechanism, a transmission mechanism, a supporting base and the like.
In the prior art, after a user performs a breaking operation on an operating mechanism of a circuit breaker, the on-off element may be still electrified, and in this case, if the user performs maintenance or other operations, an electric shock or electric leakage risk may occur, so that potential safety hazards of personnel and equipment exist.
Disclosure of utility model
In order to solve the above technical problems, embodiments of the present application provide a circuit breaker to at least partially solve the above problems.
According to a first aspect of an embodiment of the present application, there is provided a circuit breaker including a circuit breaker body and a high voltage live detection device, the circuit breaker body including an on-off mechanism for switching on or off a current of a circuit system to which the circuit breaker is connected; the high-voltage live detection device comprises a high-voltage live detection sensor, a fixed support and an information feedback device, wherein the high-voltage live detection sensor is connected to the on-off mechanism through the fixed support, the information feedback device is electrically connected with the high-voltage live detection sensor and is arranged on the circuit breaker body, the high-voltage live detection device is used for detecting whether the on-off mechanism is electrified or not and sending a detected detection result to the information feedback device, and the information feedback device reproduces the detection result.
In an alternative implementation, the fixing support comprises a first fixing rod and a second fixing rod, one end of the first fixing rod is detachably connected with one end of the second fixing rod, and the fixing support is L-shaped.
In an alternative implementation manner, the information feedback device comprises a display device, the display device is installed on the breaker body and is electrically connected with the high-voltage live detection sensor, the detection result of the high-voltage live detection sensor is received through the display device, and if the detection result is live, the display device displays the detection result so as to reproduce the detection result.
In an alternative implementation manner, the on-off mechanism comprises an on-off element, an operating mechanism and a transmission mechanism, wherein the on-off element is connected to the transmission mechanism, the transmission mechanism is connected to the operating mechanism, and the transmission mechanism is driven to move through the switching-on or switching-off operation of the operating mechanism, so that the on-off element switches on or switches off the current of a circuit system connected with the circuit breaker.
In an alternative implementation, one end of the fixing bracket is connected to the housing of the on-off element, and the other end of the fixing bracket is connected to the high-voltage live detection sensor, and the fixing bracket supports the high-voltage live detection sensor to be close to the on-off element so as to detect whether the on-off element is electrified.
In an alternative implementation, the circuit breaker body includes a support base on which the on-off mechanism is disposed.
In an alternative implementation, the display device is removably attached to the support base.
In an alternative implementation, the fixed bracket is detachably connected with the high voltage live detection sensor, and the fixed bracket is detachably connected with the housing of the on-off element.
In an alternative implementation manner, the information feedback device is in communication connection with a background monitoring device in the circuit system connected with the circuit breaker, the information feedback device sends the received detection result to the background monitoring device, and if the detection result is electrified, the background monitoring device reproduces the detection result.
The application provides a circuit breaker. The circuit breaker comprises a circuit breaker body and a high-voltage live detection device, wherein the circuit breaker body comprises an on-off mechanism, and the on-off mechanism is used for switching on or off the current of a circuit system connected with the circuit breaker; the high-voltage live detection device comprises a high-voltage live detection sensor, a fixed support and an information feedback device, wherein the high-voltage live detection sensor is connected to the on-off mechanism through the fixed support, the information feedback device is electrically connected with the high-voltage live detection sensor and is arranged on the circuit breaker body, the high-voltage live detection device is used for detecting whether the on-off mechanism is electrified or not and sending a detected detection result to the information feedback device, and the detection result is reproduced through the information feedback device so as to be prompted. The user can acquire the information of whether the on-off mechanism of the circuit breaker is electrified or not, and the on-off mechanism of the circuit breaker is in an uncharged state when the user maintains or operates the circuit breaker, so that the risk of electric shock or electric leakage is avoided, and the safety of personnel and equipment is guaranteed.
Drawings
Fig. 1 is a front view of a circuit breaker according to an exemplary embodiment of the present application;
Fig. 2 is a right side view of a circuit breaker according to an exemplary embodiment of the present application;
fig. 3 is a partial schematic view of a circuit breaker according to an exemplary embodiment of the present application;
List of reference numerals:
11. An on-off element; 12. an operating mechanism; 13. a transmission mechanism; 14. a support base; 21. a high voltage live detection sensor; 22. a display device; 23. a fixed bracket; 231. a first fixing rod; 232. and a second fixing rod.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.
In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
Before explaining the circuit breaker and the power grid system according to the embodiment of the application, application scenes of the circuit breaker and the power grid system are briefly explained so as to facilitate understanding.
The circuit breaker is a switching device capable of carrying, closing and opening a normal current of an operation line and carrying, closing and opening a specified abnormal current (such as a short-circuit current) within a specified time, and is an important electrical device for protecting and operating an electric power system. The circuit breaker comprises a high-voltage circuit breaker and a low-voltage circuit breaker which are respectively applied to circuit systems with different voltages. The high-voltage circuit breaker can comprise an on-off element, an operating mechanism, a transmission mechanism, a supporting base and the like.
In the prior art, after a user performs a breaking operation on an operating mechanism of a circuit breaker, the on-off element may be still electrified, and in this case, if the user performs maintenance or other operations, an electric shock or electric leakage risk may occur, so that potential safety hazards of personnel and equipment exist. In view of the above, the present application provides a circuit breaker and a power grid system, which can solve the above problems in the prior art.
Specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 3, a circuit breaker according to the present embodiment may be a tank circuit breaker including a circuit breaker body and a high voltage live detection device.
The circuit breaker body comprises an on-off mechanism, and the on-off mechanism is used for switching on or off the current of a circuit system connected with the circuit breaker. Illustratively, the on-off mechanism may include an on-off element 11, an operating mechanism 12 and a transmission mechanism 13, where the on-off element 11 is connected with the transmission mechanism 13, the transmission mechanism 13 is connected with the operating mechanism 12, and the transmission mechanism 13 may be driven to move by a closing or opening operation of the operating mechanism 12, so that the on-off element 11 performs closing or opening of a current of a circuit system connected to the circuit breaker.
The high-voltage live detection device comprises a high-voltage live detection sensor 21, a fixed support 23 and an information feedback device, wherein the high-voltage live detection sensor 21 is connected to the on-off mechanism through the fixed support 23, the information feedback device is electrically connected with the high-voltage live detection sensor 21 and is arranged on the circuit breaker body, the high-voltage live detection sensor 21 is used for detecting whether the on-off mechanism is electrified or not, the detected detection result is sent to the information feedback device, and the information feedback device reproduces the detection result. As an example, referring to fig. 3, the high-voltage live detection sensor 21 may be a voltage sensor, and the high-voltage live detection sensor 21 is connected to the on-off mechanism, where the high-voltage live detection sensor 21 may be detachably connected to the housing of the on-off element 11 in the on-off mechanism, may be detachably connected to the housing of the operating mechanism 12, or may be detachably connected to the housing of the transmission mechanism 13, which is not limited in this embodiment, so long as the high-voltage live detection sensor 21 may be made to be close to the on-off element 11 to sense whether or not the line connection board on the on-off element 11 is live. The information feedback device may include a display device 22 and an audio device, where the display device 22 may include a display screen, an indicator light, and the audio device may include a buzzer, a voice broadcast device, and the like, and the information feedback device may implement reproduction of the detection result to prompt, so that the user may know the electrification condition on the on-off mechanism, which is not limited in this embodiment.
The circuit breaker comprises a circuit breaker body and a high-voltage live detection device, wherein the circuit breaker body comprises an on-off mechanism, and the on-off mechanism is used for switching on or off the current of a circuit system connected with the circuit breaker; the high-voltage live detection device comprises a high-voltage live detection sensor 21, a fixed support 23 and an information feedback device, wherein the high-voltage live detection sensor 21 is connected to the on-off mechanism through the fixed support 23, the information feedback device is electrically connected with the high-voltage live detection sensor 21 and is arranged on the circuit breaker body, the high-voltage live detection sensor 21 is used for detecting whether the on-off mechanism is electrified or not and sending a detected detection result to the information feedback device, and the information feedback device reproduces the detection result so as to prompt. The user can acquire the information of whether the on-off mechanism of the circuit breaker is electrified or not, and the on-off mechanism of the circuit breaker is in an uncharged state when the user maintains or operates the circuit breaker, so that the risk of electric shock or electric leakage is avoided, and the safety of personnel and equipment is guaranteed.
In an alternative implementation, the circuit breaker body includes a support base 14, and the on-off mechanism is disposed on the support base 14. Illustratively, referring to fig. 1 and 2, the circuit breaker body may include an on-off mechanism and a support base 14, the on-off mechanism being detachably mounted on the support base 14. Because the on-off mechanism comprises a plurality of parts, the structure is complex, and the on-off mechanism is carried and installed through the supporting base 14, the integrity of the breaker body can be higher, the structure is more compact, and the installation is more convenient.
In an alternative implementation manner, the on-off mechanism comprises an on-off element 11, an operating mechanism 12 and a transmission mechanism 13, wherein the on-off element 11 is connected to the transmission mechanism 13, the transmission mechanism 13 is connected to the operating mechanism 12, and the transmission mechanism 13 is driven to move through the switching-on or switching-off operation of the operating mechanism 12, so that the on-off element 11 switches on or off the current of a circuit system connected with the circuit breaker. For example, referring to fig. 1, the operating mechanism 12 may perform a closing or opening operation to drive the transmission mechanism 13 to move, and then drive the on-off element 11 to close or open through the movement of the transmission mechanism 13, so as to close or open the current of the circuit system connected to the circuit breaker, thereby implementing the closing or opening operation of the circuit system, and if the circuit system has a short circuit condition, the current of the circuit system may also be opened by the on-off mechanism to play a role in protection.
In an alternative implementation, the information feedback device includes a display device 22, where the display device 22 is installed on the breaker body and is electrically connected to the high voltage live detection sensor 21, and receives the detection result of the high voltage live detection sensor 21 through the display device 22, and if the detection result is live, the display device displays the detection result to reproduce the detection result. For example, referring to fig. 1 and 2, the display device 22 may be a display screen, an indicator light, etc., and if the display screen is a display screen, specific voltage values may be displayed, or warning text information may be displayed; if the indicator lamp is an indicator lamp, the color of the indicator lamp or the on/off state of the lamp may be used to indicate that the detection result is charged or not, which is not limited in this embodiment. The display device 22 may be fixedly attached or removably attached to the circuit breaker body by bolting, welding, etc. Wherein the display device 22 may be attached to the support base 14 in the breaker body. And the display device 22 is electrically connected to the high voltage electrification detection sensor 21 to receive the detection result detected by the high voltage electrification detection sensor 21, and if the detection result is electrified, the detection result is displayed.
In this implementation manner, through setting up display device 22, can show the electrified detection result that high-voltage electrified detection sensor 21 detected to can make the user can audio-visual observation the electrified detection result that high-voltage electrified detection sensor 21 detected, in order to avoid the user to appear the maloperation when the break-make element 11 of circuit breaker is in the electrified state, can reduce personnel and the security risk of equipment.
In an alternative implementation, the display device 22 is removably attached to the support base 14. For example, referring to fig. 1 and 2, the display device 22 may be coupled to the support base 14 in the circuit breaker body in a bolted connection. It should be noted that, the display device 22 may be directly connected to the support base 14, or may be connected to the support base 14 by providing a mounting bracket, which is not limited in this embodiment. In this implementation manner, the display device 22 is detachably connected to the support base 14, so that a user can directly observe the detection result displayed by the display device 22, and if the display device 22 is damaged, the user can conveniently detach and install the display device when maintenance or replacement is required.
In an alternative implementation, one end of the fixing bracket 23 is connected to the housing of the on-off element 11, the other end of the fixing bracket 23 is connected to the high voltage live detection sensor 21, and the high voltage live detection sensor 21 is supported by the fixing bracket 23 to be close to the on-off element 11 so as to detect whether the on-off element 11 is electrified. Illustratively, referring to fig. 3, one end of the fixing bracket 23 is connected to the housing of the on-off element 11, and the other end of the fixing bracket 23 is connected to the high-voltage live detection sensor 21 in a fixed connection or a detachable connection. This embodiment is not limited thereto. The high-voltage live detection sensor 21 is connected with the shell of the on-off element 11 through the fixing bracket 23, the high-voltage live detection sensor 21 is fixed through the fixing bracket 23, and the distance between the position of the high-voltage live detection sensor 21 and the position of a circuit wiring board to be detected on the on-off element 11 is smaller than or equal to a preset distance, wherein the circuit wiring board to be detected refers to a target circuit wiring board, such as a primary circuit wiring board, on the on-off element 11, which needs to be subjected to live detection. If the circuit in the on-off element 11 is not turned off, the current of the target line terminal board on the on-off element 11 generates an electric field, and the high voltage electrification detection sensor 21 can sense the electric field signal within a preset distance, so that electrification of the target line terminal board on the on-off element 11 can be detected. The detection preset distance may be set by a person skilled in the art according to the rated voltage of the high voltage circuit in which the circuit breaker is located, for example, the rated voltage of 72.5 kv, the corresponding preset distance may be 0.8 meter, the rated voltage of 550 kv, the corresponding preset distance may be 5 meters, and in the preset distance, the high voltage live detection sensor 2 may be capable of detecting whether the circuit wiring board to be detected on the on-off element 11 is live or not, which is not limited in this embodiment.
In this implementation mode, through setting up fixed bolster 23, can fix the position that is close to break-make element 11 with high-voltage live detection sensor 21 to whether the high-voltage live detection sensor 21 detects on the break-make element 11 and live, and install high-voltage live detection sensor 21 through setting up fixed bolster 23, can not influence the structure and the function of other parts of circuit breaker, also need not to reform transform the structure of other parts of circuit breaker body, simple installation, and save the cost.
In an alternative implementation, the fixed bracket 23 is detachably connected to the high-voltage live detection sensor 21, and the fixed bracket 23 is detachably connected to the housing of the on-off element 11. The connection between the fixing bracket 23 and the high-voltage live detection sensor 21 may be, for example, a bolt connection, a snap connection, or the like, and similarly, the connection between the fixing bracket 23 and the housing of the on-off element 11 may be a bolt connection, a snap connection, or the like. The high-voltage live detection sensor 21 is detachably connected with the high-voltage live detection sensor 21 through the fixing support 23, and the fixing support 23 is detachably connected with the shell of the on-off element 11, so that the high-voltage live detection sensor 21 is convenient to install and detach. If the high-voltage live detection sensor 21 breaks down and needs to be replaced or maintained, the high-voltage live detection sensor 21 can be replaced only by detachably connecting the fixed support 23 with the high-voltage live detection sensor 21, and the operation is convenient.
In an alternative implementation, the fixing bracket 23 includes a first fixing rod 231 and a second fixing rod 232, one end of the first fixing rod 231 is detachably connected with one end of the second fixing rod 232, and the fixing bracket 23 is L-shaped. For example, referring to fig. 3, one end of the first fixing rod 231 and one end of the second fixing rod 232 may be connected by a bolt, the first fixing rod 231 and the second fixing rod 232 are connected to form an L-shaped fixing bracket 23, one end of the L-shaped fixing bracket 23 is connected to the transmission mechanism 13, and the other end is connected to the high voltage live detection sensor 21, so that the high voltage live detection sensor 21 is fixed to the on-off mechanism of the circuit breaker. The fixing bracket 23 in the present embodiment has a simple structure, and can save cost and installation space. And, since the fixing bracket 23 is detachably coupled with one end of the first fixing rod 231 and one end of the second fixing rod 232, the first fixing rod 231 and the second fixing rod 232 can be disassembled during the installation or the disassembly, so that the installation and the disassembly of the whole fixing bracket 23 can be easier to operate.
In an alternative implementation manner, the information feedback device is in communication connection with a background monitoring device in the circuit system connected with the circuit breaker, the information feedback device sends the received detection result to the background monitoring device, and if the detection result is electrified, the background monitoring device reproduces the detection result. The background monitoring device may be any device with monitoring and information feedback functions in a circuit system connected with the circuit breaker, or may be a device for monitoring and feedback of the charging information of the on-off element of the circuit breaker independently, which is not limited in this embodiment. The information feedback device is in communication connection with the background monitoring device, the information feedback device sends the received detection result to the background monitoring device, the detection result is reproduced through the background monitoring device, and the reproduction mode can include display, audio prompt or voice broadcast and the like, and the embodiment is not limited to the above.
In this implementation mode, through sending the testing result to backstage monitoring facilities for the user of high-voltage circuit job site and the user who carries out backstage monitoring all can acquire whether electrified information on the break-make mechanism of circuit breaker, thereby ensure that the user maintains or when other operations, be uncharged state on the break-make mechanism of circuit breaker, in order to avoid appearing electric shock or electric leakage risk, thereby ensure personnel and equipment's safety.
It should be noted that not all the steps and modules in the above flowcharts and the system configuration diagrams are necessary, and some steps or modules may be omitted according to actual needs. The execution sequence of the steps is not fixed and can be adjusted as required. The system structure described in the above embodiments may be a physical structure or a logical structure, that is, some modules may be implemented by the same physical entity, or some modules may be implemented by multiple physical entities, or may be implemented jointly by some components in multiple independent devices.
In the above embodiments, the hardware module may be mechanically or electrically implemented. For example, a hardware module may include permanently dedicated circuitry or logic (e.g., a dedicated processor, FPGA, or ASIC) to perform the corresponding operations. The hardware modules may also include programmable logic or circuitry (e.g., a general-purpose processor or other programmable processor) that may be temporarily configured by software to perform the corresponding operations. The particular implementation (mechanical, or dedicated permanent, or temporarily set) may be determined based on cost and time considerations.
While the application has been illustrated and described in detail in the drawings and in the preferred embodiments, the application is not limited to the disclosed embodiments, and it will be appreciated by those skilled in the art that the code audits of the various embodiments described above may be combined to produce further embodiments of the application, which are also within the scope of the application.
Claims (9)
1. A circuit breaker, comprising:
The circuit breaker comprises a circuit breaker body, wherein the circuit breaker body comprises an on-off mechanism, and the on-off mechanism is used for switching on or off the current of a circuit system connected with the circuit breaker;
The high-voltage live detection device comprises a high-voltage live detection sensor (21), a fixed support (23) and an information feedback device, wherein the high-voltage live detection sensor (21) is connected to the on-off mechanism through the fixed support (23), the information feedback device is electrically connected with the high-voltage live detection sensor (21) and is installed on the circuit breaker body, the high-voltage live detection sensor (21) is used for detecting whether the on-off mechanism is electrified or not, the detected detection result is sent to the information feedback device, and the information feedback device reproduces the detection result.
2. The circuit breaker according to claim 1, characterized in that the fixing bracket (23) comprises a first fixing rod (231) and a second fixing rod (232), one end of the first fixing rod (231) is detachably connected with one end of the second fixing rod (232), and the fixing bracket (23) is L-shaped.
3. The circuit breaker according to claim 2, characterized in that the information feedback device comprises a display device (22), the display device (22) being mounted on the circuit breaker body and being electrically connected to the high voltage live detection sensor (21), the detection result of the high voltage live detection sensor (21) being received by the display device (22), the display device (22) displaying the detection result for reproduction of the detection result if the detection result is live.
4. A circuit breaker according to claim 3, characterized in that the switching mechanism comprises a switching element (11), an operating mechanism (12) and a transmission mechanism (13), the switching element (11) is connected to the transmission mechanism (13), the transmission mechanism (13) is connected to the operating mechanism (12), and the transmission mechanism (13) is driven to move through the closing or opening operation of the operating mechanism (12) so that the switching element (11) closes or opens the current of a circuit system connected with the circuit breaker.
5. The circuit breaker according to claim 4, characterized in that one end of the fixing bracket (23) is connected to the housing of the on-off element (11), the other end of the fixing bracket (23) is connected to the high voltage live detection sensor (21), and the high voltage live detection sensor (21) is supported by the fixing bracket (23) to be close to the on-off element (11) so as to detect whether the on-off element (11) is charged.
6. The circuit breaker according to claim 5, characterized in that the circuit breaker body comprises a support base (14), the on-off mechanism being provided on the support base (14).
7. The circuit breaker according to claim 6, characterized in that said display device (22) is removably connected to said support base (14).
8. Circuit breaker according to claim 5, characterized in that the fixed bracket (23) is detachably connected with the high voltage live detection sensor (21), and in that the fixed bracket (23) is detachably connected with the housing of the on-off element (11).
9. The circuit breaker according to claim 1, wherein the information feedback device is communicatively connected to a background monitoring device in a circuit system to which the circuit breaker is connected, the information feedback device sends the received detection result to the background monitoring device, and if the detection result is electrified, the background monitoring device reproduces the detection result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323047830.3U CN221057340U (en) | 2023-11-10 | 2023-11-10 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323047830.3U CN221057340U (en) | 2023-11-10 | 2023-11-10 | Circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221057340U true CN221057340U (en) | 2024-05-31 |
Family
ID=91206817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323047830.3U Active CN221057340U (en) | 2023-11-10 | 2023-11-10 | Circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221057340U (en) |
-
2023
- 2023-11-10 CN CN202323047830.3U patent/CN221057340U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100475011C (en) | Power distribution panel, power distribution module, and method for changing power distribution circuit in the power distribution panel | |
| CN102798782A (en) | High-voltage insulation resistance monitoring alarm | |
| CN221057340U (en) | Circuit breaker | |
| CN112233923B (en) | Misoperation preventing device for electric lock cover | |
| CN202888712U (en) | Intelligent load switch cabinet | |
| CN205319057U (en) | Busbar grounding isolator has electric anti -misoperation lockout system | |
| CN201674152U (en) | SF6 fully-closed all-insulating load switch and fuse combined switch cabinet | |
| CN112751312A (en) | Novel box transformer substation and power distribution protection system thereof | |
| CN210402779U (en) | KYN training cabinet | |
| CN217587379U (en) | Double-display intelligent nuclear phase electrified display device for high-voltage switch cabinet | |
| CN210350862U (en) | Grounding remote monitoring system | |
| KR101420576B1 (en) | Apparatus And Method For Displaying Operating State Of High and Low Voltage Switchgear | |
| CN220439485U (en) | Circuit breaker | |
| CN211151315U (en) | Fuse handcart prompting device | |
| CN215834462U (en) | Locking system of grounding disconnecting link | |
| CN214541002U (en) | Cubical switchboard alarm device and cubical switchboard | |
| CN216981607U (en) | Direct current intelligent monitoring looped netowrk cabinet | |
| CN218456272U (en) | Net cage with a sleeve ring formed by once and twice fusion | |
| CN220473606U (en) | High-voltage electrified alarm device | |
| CN213661047U (en) | Anti-misoperation locking cover and anti-misoperation device | |
| CN211629594U (en) | Electrical control switch cabinet | |
| CN218213210U (en) | High-voltage charged display with nuclear phase test hole function | |
| CN220961763U (en) | Live early warning device for static contact of high-voltage switch cabinet | |
| CN218919663U (en) | Door opening alarm device for rear cabinet door of switch cabinet | |
| CN219576428U (en) | Multifunctional auxiliary vehicle for disassembling and assembling chassis of circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |