CN216213096U - High-voltage combined circuit breaker with high safety - Google Patents
High-voltage combined circuit breaker with high safety Download PDFInfo
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- CN216213096U CN216213096U CN202121915206.9U CN202121915206U CN216213096U CN 216213096 U CN216213096 U CN 216213096U CN 202121915206 U CN202121915206 U CN 202121915206U CN 216213096 U CN216213096 U CN 216213096U
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- circuit breaker
- pull rod
- arc extinguishing
- knife
- vacuum arc
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Abstract
The utility model discloses a high-voltage combined circuit breaker with high safety, which comprises an installation frame, a first insulating pull rod, a vacuum arc extinguishing device, a current transformer, an isolation knife, a second insulating pull rod, an operating mechanism and a controller, wherein a main shaft and an isolation shaft are rotatably connected to the installation frame, and one end of the main shaft is connected with an angular displacement sensor. The utility model monitors the rotation angle of the main shaft in real time by connecting the angular displacement sensor on the main shaft, provides the rotation angle to the data processing module of the controller, and calculates the following parameters when the breaker is switched on/off: the arc extinguish chamber has the advantages of over-stroke, opening distance, switching-on bounce time, switching-on different periods and average switching-on speed, switching-off different periods, switching-off time and average switching-off speed, various mechanical characteristic parameters of the circuit breaker can be monitored in real time, and the circuit breaker can be automatically early warned in advance to prevent mechanical and electrical faults from occurring.
Description
Technical Field
The utility model relates to the technical field of mechanical detection, in particular to a high-voltage combined circuit breaker with high safety.
Background
The high-voltage combined circuit breaker (or called high-voltage switch) not only can cut off or close the no-load current and load current in the high-voltage circuit, but also can cut off the overload current and short-circuit current by the action of the relay protection device when the system is in fault. However, the existing high-voltage combined circuit breaker lacks real-time monitoring of the vacuum arc-extinguishing chamber and the whole circuit breaker device, and has potential safety hazards.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides the high-voltage combined circuit breaker with high safety, which can monitor the state of the vacuum arc-extinguishing chamber in real time and has the advantage of high safety.
The technical scheme of the utility model is as follows: a high-voltage combined circuit breaker with high safety, comprising: the device comprises an installation frame, a main shaft and an isolation shaft are rotatably connected to the installation frame, and an angular displacement sensor is connected to one end of the main shaft; the first end of the first insulating pull rod is connected with the main shaft; the vacuum arc extinguishing device is connected with the mounting frame, a movable conducting rod of the vacuum arc extinguishing device is rotatably connected with the second end of the first insulating pull rod, and a lower wire outlet seat of the vacuum arc extinguishing device is electrically connected with a wire inlet end of a main loop; the current transformer is provided with a structure integrating a wall-through conduit and is connected with the mounting frame, one end of the current transformer, which is close to the vacuum arc extinguishing device, is a current input end, and the current input end is electrically connected with a movable contact of the vacuum arc extinguishing device; the isolation knife is electrically connected with one end of the current transformer, one end of the isolation knife is rotatably connected with the current transformer, and when the isolation knife rotates to a specified position, the other end of the isolation knife is electrically connected with a wire outlet end of a main loop; one end of the second insulating pull rod is connected with the isolating shaft, and the other end of the second insulating pull rod is connected with the isolating knife; an operating mechanism configured to control rotation of the main shaft and the isolation shaft, respectively; the controller comprises a data processing module, a monitoring module and a control module, wherein the input end of the data processing module is connected with the angular displacement sensor, and the output end of the data processing module is connected with the monitoring module; the monitoring module comprises a display; the control module is electrically connected with the current output end of the current transformer and the data processing module, and controls the operation of the operation structure through electric signals; the indoor high-voltage combined circuit breaker comprises a first insulating pull rod, a second insulating pull rod, a vacuum arc extinguishing device, a current transformer and an isolating knife, wherein the first insulating pull rod, the second insulating pull rod, the vacuum arc extinguishing device, the current transformer and the isolating knife are in a group, and the indoor high-voltage combined circuit breaker comprises three groups.
The working principle of the utility model is as follows: when the high-voltage combined circuit breaker needs to be disconnected, the controller controls the operation of the operating mechanism through an electric signal to drive the main shaft to rotate, so that the movable conducting rod connected with the main shaft is separated from the contact with the static contact, and the disconnection of a main loop is completed; when a subsequent circuit needs to be isolated, after the movable contact and the static contact of the vacuum arc-extinguishing device are disconnected, the controller controls the operating mechanism through an electric signal to drive the isolating shaft to rotate, so that the isolating knife is disconnected with the wire outlet end of the main loop; the angular displacement sensor is connected with the main shaft, mainly monitors the rotation angle of the main shaft for closing, and the data processing module provided for the controller calculates the time of opening/closing of the breaker: the arc extinguish chamber has over-stroke, opening distance, switching-on bounce time, switching-on different periods and average switching-on speed, switching-off different periods, switching-off time and average switching-off speed, can monitor various mechanical characteristic parameters of the high-voltage combined circuit breaker in real time, and can automatically early warn in advance to prevent the circuit breaker from having mechanical and electrical faults.
Compared with the prior art, the utility model monitors the rotation angle of the main shaft in real time by connecting the angular displacement sensor on the main shaft, provides the rotation angle to the data processing module of the controller, and calculates the following parameters when the breaker is switched on/off: the arc extinguish chamber has the advantages of over-stroke, opening distance, switching-on bounce time, switching-on different periods and average switching-on speed, switching-off different periods, switching-off time and average switching-off speed, various mechanical characteristic parameters of the circuit breaker can be monitored in real time, and the circuit breaker can be automatically early warned in advance to prevent mechanical and electrical faults from occurring.
In a further technical scheme, a lower wire outlet seat of the vacuum arc-extinguishing device is connected with a first temperature sensor, and the first temperature sensor is connected with the data processing module.
The lower wire outlet seat is connected with the first temperature sensor, the temperature of the contact inside the vacuum arc extinguishing chamber is monitored, the circuit breaker is automatically switched off by early warning when the temperature of the contact of the arc extinguishing chamber is too high, the contact of the arc extinguishing chamber is timely separated, and the wire outlet electrical accident is avoided.
In a further technical scheme, a second temperature sensor is arranged on one side of the isolation knife close to the wire outlet end of the main loop, and the second temperature sensor is connected with the data processing module.
Through set up second temperature sensor on keeping apart the sword, the laminating position temperature of the leading-out terminal of monitoring isolation sword and major loop, when keeping apart the sword high temperature, early warning automatic disconnection keeps apart the sword in advance, lets keep apart the sword in time separation, avoids the electrical accident of being qualified for the next round of competitions.
In a further technical scheme, the installation frame still rotates and is connected with the grounding axle, the grounding axle is connected with the grounding sword, when the grounding sword rotated to preset position, the grounding sword was connected with the ground.
Through setting up earthing shaft and earthing switch, can carry out the ground connection when this high pressure combination formula circuit breaker overhauls, avoid appearing the incident.
The utility model has the beneficial effects that:
1. compared with the prior art, the utility model monitors the rotation angle of the main shaft in real time by connecting the angular displacement sensor on the main shaft, provides the rotation angle to the data processing module of the controller, and calculates the following parameters when the breaker is switched on/off: the arc extinguish chamber has over-stroke, opening distance, switching-on bounce time, switching-on different periods and average switching-on speed, switching-off different periods, switching-off time and average switching-off speed, can monitor various mechanical characteristic parameters of the circuit breaker in real time, and can automatically early warn in advance to prevent the circuit breaker from having mechanical and electrical faults;
2. the lower wire outlet seat is connected with a first temperature sensor to monitor the temperature of the contact inside the vacuum arc extinguishing chamber, and when the temperature of the contact of the arc extinguishing chamber is overhigh, the lower wire outlet seat can early warn and automatically break the circuit breaker to separate the contact of the arc extinguishing chamber in time, so that the wire outlet electrical accident is avoided;
3. the second temperature sensor is arranged on the isolation knife, so that the temperature of the joint part of the isolation knife and the wire outlet end of the main loop is monitored, when the temperature of the isolation knife is too high, early warning is carried out in advance, the isolation knife is automatically disconnected, the isolation knife is separated in time, and the wire outlet electrical accident is avoided;
4. through setting up earthing shaft and earthing switch, can carry out the ground connection when this high pressure combination formula circuit breaker overhauls, avoid appearing the incident.
Drawings
Fig. 1 is a schematic structural view of a high-voltage combined circuit breaker according to an embodiment of the present invention;
FIG. 2 is a left side view of FIG. 1;
fig. 3 is a schematic structural diagram of a current transformer according to an embodiment of the present invention.
Description of reference numerals:
1-a mounting frame; 1 a-a main shaft; 1 b-isolating shaft; 1 c-a ground shaft; 2-a first insulating tie rod; 3-vacuum arc extinguishing device; 3 a-lower wire outlet seat; 4-a current transformer; 4 a-current input; 4 b-current output; 5-isolating knife; 6-a second insulating pull rod; 7-an operating mechanism; 8-a controller; 9-the outlet end of the main loop; 10-the incoming line end of the main loop; 11-an angular displacement sensor; 12-a first temperature sensor; 13-second temperature sensor.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings.
Example (b):
as shown in fig. 1 to 3, a high-voltage combined circuit breaker with high safety includes a mounting frame 1, a first insulating rod 2, a vacuum arc extinguishing device 3, a current transformer 4, an isolation knife 5, a second insulating rod 6, an operating mechanism 7, and a controller 8.
The device comprises a mounting frame 1, wherein a main shaft 1a and an isolation shaft 1b are rotatably connected to the mounting frame 1, and an angular displacement sensor 11 is connected to one end of the main shaft 1 a.
And a first insulating pull rod 2, wherein a first end of the first insulating pull rod 2 is connected with the main shaft 1 a.
The vacuum arc extinguishing device 3, the vacuum arc extinguishing device 3 with installation frame 1 is connected, just the moving conducting rod of vacuum arc extinguishing device 3 with the second end of first insulating pull rod 2 is rotated and is connected, the lower outlet socket 3a of vacuum arc extinguishing device 3 and the inlet wire end 10 electric connection of major loop.
The current transformer 4 is provided with a structure integrating a wall-through conduit and is connected with the mounting frame 4, one end of the current transformer 4 close to the vacuum arc extinguishing device 3 is a current input end 4a, and the current input end 4a is electrically connected with a movable contact of the vacuum arc extinguishing device 3. For example, the current transformer 4 passes through the mounting frame 1, and both ends are respectively located on both sides of the mounting frame 1.
The isolation knife 5, the one end of isolation knife 5 with current transformer 4's current input end 4a electric connection, just the one end of isolation knife 5 with current transformer 4 rotates and connects, works as when isolation knife 5 rotates to the assigned position, the other end of isolation knife 5 and the leading-out terminal 9 electric connection of major loop.
And one end of the second insulating pull rod 6 is connected with the isolation shaft 1b, and the other end of the second insulating pull rod 6 is connected with the isolation knife 5.
And an operating mechanism 7, wherein the operating mechanism 7 is configured to control the rotation of the main shaft 1a and the isolation shaft 1b respectively. For example, the operating mechanism 7 may include a motor, and the main shaft 1a and the isolation shaft 1b are connected to the main shaft 1a and the isolation shaft 1b through a mechanical output shaft of the motor to drive the main shaft 1a and the isolation shaft 1b to operate.
The controller 8, the controller 8 includes data processing module, monitoring module and control module, data processing module's input with angle displacement sensor 11 is connected, data processing module's output with monitoring module is connected. For example, the input end of the data processing module may be electrically connected to the angular displacement sensor 11, or may be connected to the angular displacement sensor 11 by wireless communication, as long as the data obtained by the angular displacement sensor 11 can be transmitted, which is not limited to this. The monitoring module includes a display. The control module is electrically connected with the current output end 4b of the current transformer 4 and the data processing module, and the control module controls the operation of the operation structure 7 through an electric signal. The high-voltage combined circuit breaker comprises a first insulating pull rod 2, a second insulating pull rod 6, a vacuum arc extinguishing device 3, a current transformer 4 and an isolating knife 5, wherein the high-voltage combined circuit breaker comprises three groups.
The working principle of the utility model is as follows: when the high-voltage combined circuit breaker needs to be disconnected, the controller 8 controls the operation of the operating mechanism 7 through an electric signal to drive the main shaft 1a to rotate, so that the movable conducting rod connected with the main shaft 1a is separated from the contact with the static contact, and the disconnection of a main loop is completed; when a subsequent circuit needs to be isolated, after the movable and static contacts of the vacuum arc-extinguishing device 3 are disconnected, the controller 8 controls the operating mechanism 7 through an electric signal to drive the isolating shaft 1b to rotate, so that the isolating knife 5 is disconnected with the wire outlet end 9 of the main loop; the angular displacement sensor 11 is connected with the main shaft 1a, mainly monitors the rotation angle of the main shaft 1a for closing, and the data processing module provided for the controller 8 calculates the following parameters when the breaker is opened/closed: the arc extinguish chamber has over-stroke, opening distance, switching-on bounce time, switching-on different periods and average switching-on speed, switching-off different periods, switching-off time and average switching-off speed, can monitor various mechanical characteristic parameters of the high-voltage combined circuit breaker in real time, and can automatically early warn in advance to prevent the circuit breaker from having mechanical and electrical faults.
Compared with the prior art, the utility model monitors the rotation angle of the main shaft 1a in real time by connecting the angular displacement sensor 11 on the main shaft 1a, provides the rotation angle to the data processing module of the controller 8, and calculates the following parameters when the breaker is switched on/off: the arc extinguish chamber has the advantages of over-stroke, opening distance, switching-on bounce time, switching-on different periods and average switching-on speed, switching-off different periods, switching-off time and average switching-off speed, various mechanical characteristic parameters of the circuit breaker can be monitored in real time, and the circuit breaker can be automatically early warned in advance to prevent mechanical and electrical faults from occurring.
In another embodiment, a first temperature sensor 12 is connected to the lower wire outlet 3a of the vacuum arc extinguishing device 3, and the first temperature sensor 12 is connected to the data processing module. The first temperature sensor 12 is connected with the lower wire outlet seat 3a, the temperature of the contact inside the vacuum arc extinguishing chamber is monitored, the circuit breaker is automatically opened by early warning when the temperature of the contact of the arc extinguishing chamber is too high, the contact of the arc extinguishing chamber is timely separated, and the wire outlet electrical accident is avoided. For example, a first temperature sensor 12 is disposed on the lower wire outlet 3a of each vacuum arc extinguishing device 3, and the contact temperature of each vacuum arc extinguishing device 3 is monitored.
In another embodiment, a second temperature sensor 13 is disposed on a side of the isolation knife 5 close to the outlet end 9 of the main circuit, and the second temperature sensor 13 is connected to the data processing module. Through set up second temperature sensor 13 on isolation sword 5, monitor the laminating position temperature of isolation sword 5 and main circuit's leading-out terminal 9, when isolation sword 5 high temperature early warning automatic disconnection isolation sword 5 in advance lets isolation sword 5 in time separate, avoids the electrical accident of being qualified for the next round of competitions. For example, each isolation knife 5 is provided with a second temperature sensor 13 for monitoring the temperature of the bonding part between the isolation knife 5 and the outlet end 9 of the main circuit.
In another embodiment, the mounting frame 1 is further rotatably connected with a grounding shaft 1c, the grounding shaft 1c is connected with a grounding knife, and when the grounding knife rotates to a preset position, the grounding knife is connected with the ground. Through setting up earthing shaft 1c and earthing switch, can carry out the ground connection when this high voltage combination formula circuit breaker overhauls, avoid appearing the incident.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (4)
1. A high-voltage combined circuit breaker with high safety is characterized by comprising:
the device comprises an installation frame, a main shaft and an isolation shaft are rotatably connected to the installation frame, and an angular displacement sensor is connected to one end of the main shaft;
the first end of the first insulating pull rod is connected with the main shaft;
the vacuum arc extinguishing device is connected with the mounting frame, a movable conducting rod of the vacuum arc extinguishing device is rotatably connected with the second end of the first insulating pull rod, and a lower wire outlet seat of the vacuum arc extinguishing device is electrically connected with a wire inlet end of a main loop;
the current transformer is provided with a structure integrating a wall-through conduit and is connected with the mounting frame, one end of the current transformer, which is close to the vacuum arc extinguishing device, is a current input end, and the current input end is electrically connected with a movable contact of the vacuum arc extinguishing device;
the isolation knife is electrically connected with one end of the current transformer, one end of the isolation knife is rotatably connected with the current transformer, and when the isolation knife rotates to a specified position, the other end of the isolation knife is electrically connected with a wire outlet end of a main loop;
one end of the second insulating pull rod is connected with the isolating shaft, and the other end of the second insulating pull rod is connected with the isolating knife;
an operating mechanism configured to control rotation of the main shaft and the isolation shaft, respectively;
the controller comprises a data processing module, a monitoring module and a control module, wherein the input end of the data processing module is connected with the angular displacement sensor, and the output end of the data processing module is connected with the monitoring module; the monitoring module comprises a display; the control module is electrically connected with the current output end of the current transformer and the data processing module, and controls the operation of the operation structure through electric signals;
the high-voltage combined circuit breaker comprises a first insulating pull rod, a second insulating pull rod, a vacuum arc extinguishing device, a current transformer and an isolating knife, wherein the first insulating pull rod, the second insulating pull rod, the vacuum arc extinguishing device, the current transformer and the isolating knife are in a group, and the high-voltage combined circuit breaker comprises three groups.
2. The high-voltage combined circuit breaker with high safety according to claim 1, wherein a first temperature sensor is connected to a lower wire outlet base of the vacuum arc extinguishing device, and the first temperature sensor is connected to the data processing module.
3. The high-voltage combined circuit breaker with high safety as claimed in claim 1, wherein a second temperature sensor is disposed on a side of the isolation knife close to the outlet end of the main circuit, and the second temperature sensor is connected to the data processing module.
4. The high-voltage combined circuit breaker with high safety according to claim 1, wherein the mounting frame is further rotatably connected with a grounding shaft, the grounding shaft is connected with a grounding knife, and when the grounding knife rotates to a preset position, the grounding knife is connected with the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121915206.9U CN216213096U (en) | 2021-08-16 | 2021-08-16 | High-voltage combined circuit breaker with high safety |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121915206.9U CN216213096U (en) | 2021-08-16 | 2021-08-16 | High-voltage combined circuit breaker with high safety |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216213096U true CN216213096U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121915206.9U Active CN216213096U (en) | 2021-08-16 | 2021-08-16 | High-voltage combined circuit breaker with high safety |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216213096U (en) |
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2021
- 2021-08-16 CN CN202121915206.9U patent/CN216213096U/en active Active
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