Monitoring system for isolation fracture of generator circuit breaker complete equipment
By setting an infrared transmitter and receiver in the complete set of generator circuit breakers, the opening and closing status of the isolating switch is automatically monitored, and the problems of inaccurate and unsafe monitoring in the prior art are solved, and the monitoring effect of high accuracy and safety is achieved.
Patent Information
- Application Number
- CN202420481993.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-13
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-03-13
AI Technical Summary
The prior art is difficult to effectively monitor isolation breaks, especially B-phase breaks in the complete set of generator circuit breakers, resulting in inaccurate and unsafe monitoring.
A monitoring system is designed, by setting an observation window on the outer and inner boxes, and setting an infrared transmitter and infrared receiver on both sides of the breaking port of the isolation switch, the opening and closing status of the isolation switch is used to determine the opening and closing status of the isolation switch, and automatic monitoring and identification are achieved.
It improves the accuracy and reliability of monitoring, reduces the possibility of manual misjudgment, avoids manual on-site confirmation, and ensures personal safety.
Smart Images
Figure CN222561737U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of circuit breaker monitoring, in particular to a monitoring system for an isolation break of a complete set of generator circuit breaker devices. Background Art
[0002] Generator circuit breaker (GCB) is a special circuit breaker whose main function is to quickly and accurately disconnect faults and protect expensive generator equipment. It is an important protective device in the power system. When it is activated, the disconnector in the complete set of equipment should be disconnected to ensure the safety of operation and maintenance. The prior art manually observes the disconnection of the disconnector set in the inner box by setting corresponding observation windows on the outer box and the inner box. Due to the design and layout characteristics of the GCB equipment, the window for observation is very small, and since the three phases ABC are installed in one box, if it relies on manual observation, the B phase break cannot be effectively observed from the outside, which causes great trouble. Utility Model Content
[0003] In order to improve monitoring accuracy, the present application provides a monitoring system for an isolation break of a generator circuit breaker complete set.
[0004] The technical solution adopted by the utility model to solve the above problems is:
[0005] The monitoring system of the isolating fracture of a complete set of generator circuit breakers comprises: an outer box body, an inner box body arranged in the outer box body, the isolating switch is arranged in the inner box body, a first observation window is arranged on the outer box body, a second observation window is arranged on a side of the inner box body close to the first observation window, the first observation window, the second observation window and the isolating fracture are located in the same straight line, an infrared transmitter and an infrared receiver are arranged on both sides of the isolating fracture opposite to each other, and the infrared transmitter, the infrared receiver, the first observation window and the second observation window are located in the same straight line.
[0006] Furthermore, a third observation window is provided on the inner box body, the first observation window, the second observation window and the third observation window are located on the same straight line, and the infrared transmitter or infrared receiver is arranged on the inner side of the outer box body near the third observation window.
[0007] Furthermore, the infrared transmitter and the infrared receiver are both arranged on the outer box.
[0008] Furthermore, the infrared transmitter is arranged on the outer box body through an electric wheel axle.
[0009] Furthermore, a mounting bracket is provided in the observation window on the inner box body, and a correction unit is provided on the side of the mounting bracket away from the observation window. The observation window of the mounting bracket is set to be an observation window close to the infrared transmitter, and the correction unit, the disconnector break and the infrared receiver are located in the same straight line.
[0010] Furthermore, the mounting bracket is retractable.
[0011] Furthermore, a bracket storage box is also provided on the observation window, and the mounting bracket is fixed in the bracket storage box.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] An observation window and infrared generating and receiving device are added to the disconnecting switch inside the generator circuit breaker complete set. The "open" and "closed" positions of the disconnecting switch are judged by the infrared generating and receiving device, thereby realizing reliable judgment of the switch status. The confirmation by human eyes is adjusted to automatic recognition by infrared device signals, which reduces the possibility of misjudgment and improves accuracy. At the same time, it avoids the work of manual on-site confirmation and effectively protects personal safety.
[0014] The infrared generating device is scanned and calibrated through the photosensitive element to prevent the infrared generator from being offset due to the movement of the equipment. When the photosensitive element continues to scan without signal, an equipment damage alarm signal is issued to achieve timely maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the monitoring system for the isolation break of the generator circuit breaker complete set corresponding to Example 1;
[0016] Figure 2 It is a schematic diagram of the structure of the monitoring system for the isolation fracture of the generator circuit breaker complete set corresponding to Example 2;
[0017] Figure numerals: 1 is an outer box body, 2 is an inner box body, 3 is a first observation window, 4 is a second observation window, 5 is a disconnector break, and 6 is a third observation window. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0019] Example 1
[0020] like Figure 1As shown, the monitoring system of the disconnecting break of the complete set of generator circuit breakers comprises: an outer box 1, an inner box 2 arranged in the outer box, the disconnecting switch is arranged in the inner box 2, a first observation window 3 is arranged on the outer box 1, a second observation window 4 is arranged on the side of the inner box 2 close to the first observation window 3, the first observation window 3, the second observation window 4 and the disconnecting switch break 5 are located in the same straight line, an infrared transmitter and an infrared receiver are arranged on both sides of the disconnecting switch break 5, the infrared transmitter, the infrared receiver, the first observation window 3 and the second observation window 4 are located in the same straight line, and the infrared transmitter and the infrared receiver are not shown in the figure. In this embodiment, the infrared transmitter is arranged on the first observation window 3, and the infrared receiver is arranged on the inner side of the inner box 2. The infrared transmitter can also be arranged on the second observation window 4. In addition, the positions of the infrared transmitter and the infrared receiver can also be interchanged.
[0021] When the isolating switch is in the "closed" position, the infrared receiver receives a signal of "0", and when the isolating switch is in the "open" position, the infrared receiver receives a signal of "1". By monitoring the signal of the infrared receiver, the disconnection of the isolating switch can be monitored online. No manual monitoring is required, which is safer to use and reduces misjudgment during manual monitoring.
[0022] Example 2
[0023] The difference between this embodiment and embodiment 1 is that Figure 2 As shown, the inner box 2 is also provided with a third observation window 6, the first observation window 3, the second observation window 4 and the third observation window 6 are located on the same straight line, and the infrared transmitter or infrared receiver is arranged on the inner side of the outer box 1 near the third observation window 6. The structure of the inner box 2 is more complicated than that of the outer box 1, so the third observation window 6 is opened on the inner box 2 in the present application, and the infrared transmitter or infrared receiver is arranged on the outer box 1 for installation.
[0024] During use, the infrared transmitter and infrared receiver may be offset due to the vibration of the system operation, resulting in the infrared receiver being unable to receive signals normally. Therefore, the infrared transmitter of the present application is set on the outer box through an electric wheel axle. When the infrared receiver cannot receive signals normally, the transmission path of the infrared transmitter can be adjusted through the electric wheel axle to achieve optical path correction. The adjustment of the electric wheel axle can be manual adjustment or automatic adjustment, which is not limited here.
[0025] Since the isolating switch is in a normally closed state, the infrared receiver cannot receive signals at this time. In order to facilitate optical path correction, the present application sets a correction unit on the inner box window near the infrared transmitter through a mounting bracket. In this embodiment, the correction unit uses a photosensitive element. The correction unit, the isolating switch break and the infrared receiver are located in the same straight line, and the optical path correction can be achieved through the photosensitive unit.
[0026] In order to avoid the correction unit from affecting the optical path during normal use, in this embodiment, the mounting bracket is a retractable bracket. Furthermore, a bracket storage box is provided on the observation window, and the mounting bracket is fixed in the bracket storage box. When the correction unit is not in use, the correction unit and the mounting bracket can be stored in the bracket storage box.
Claims
1. The monitoring system of the isolation break of the generator circuit breaker complete set includes: An outer box body, an inner box body arranged in the outer box body, an isolating switch is arranged in the inner box body, the isolating switch includes an isolating switch break, a first observation window is arranged on the outer box body, a second observation window is arranged on the side of the inner box body close to the first observation window, the first observation window, the second observation window and the isolating switch break are located in the same straight line, and it is characterized in that an infrared transmitter and an infrared receiver are relatively arranged on both sides of the isolating switch break, and the infrared transmitter, the infrared receiver, the first observation window and the second observation window are located in the same straight line.
2. The monitoring system for the isolation break of a complete set of generator circuit breakers according to claim 1, characterized in that: The inner box body is also provided with a third observation window, the first observation window, the second observation window and the third observation window are located on the same straight line, and the infrared transmitter or the infrared receiver is arranged on the inner side of the outer box body near the third observation window.
3. The monitoring system for the isolation break of a complete set of generator circuit breakers according to claim 2, characterized in that: The infrared transmitter and the infrared receiver are both arranged on the outer box.
4. The monitoring system for the isolation break of a complete set of generator circuit breakers according to claim 3 is characterized in that: The infrared transmitter is arranged on the outer box body through the electric wheel shaft.
5. The monitoring system for the isolation break of a complete set of generator circuit breakers according to claim 4, characterized in that: An installation bracket is arranged in the observation window on the inner box body, and a correction unit is arranged on the side of the installation bracket away from the observation window. The observation window of the installation bracket is arranged to be the observation window close to the infrared transmitter, and the correction unit, the disconnector break and the infrared receiver are located in the same straight line.
6. The monitoring system for the isolation break of a complete set of generator circuit breakers according to claim 5, characterized in that: The mounting bracket is retractable.
7. The monitoring system for the isolation break of a complete set of generator circuit breakers according to claim 6, characterized in that: The observation window is also provided with a bracket storage box, and the mounting bracket is fixed in the bracket storage box.