Simple and safe primary and secondary fusion sensor testing device
By designing a simple and safe primary and secondary fusion sensor testing device, and using a changeover switch and a high-voltage generator to simplify the sensor debugging process, the problems of high cost and low debugging efficiency of sensor testing devices are solved, and safe and efficient sensor debugging is achieved.
Patent Information
- Application Number
- CN202422724747.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-08
AI Technical Summary
Existing sensor testing equipment is costly, has low debugging efficiency, and is complex to use. In particular, the debugging of zero-sequence voltage sensors requires high precision, which increases the debugging difficulty.
A simple and safe primary and secondary fusion sensor testing device was designed, including the device body, a changeover switch, a high-voltage input jack, a test signal output, an adjustment unit, and a safety switch handle. Combined with the control circuit on the PCB board and the current transformer calibrator, a high-voltage signal is provided by a high-voltage generator. The adjustment unit and changeover switch simplify the debugging process, and the safety switch handle ensures operational safety.
This simplifies sensor debugging, improves debugging efficiency, ensures operator safety, and reduces equipment costs.
Smart Images
Figure CN223500426U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sensor testing technology, and in particular to a simple and safe primary and secondary fusion sensor testing device. Background Technology
[0002] As an important component of the primary and secondary fusion device, the debugging of sensors has always been a difficult point in the entire production process. The main reason is that there are many of them and they are interconnected. A circuit breaker has three poles, and each pole has three voltage sensors (phase sequence, zero sequence, and load side) and a current transformer. The zero sequence voltage is synthesized from the zero sequence voltage sensors of the three poles.
[0003] Typically, manufacturers need to purchase dedicated testing and debugging equipment, which is very expensive; or they can use a simple sensor calibrator to debug it separately, but the efficiency is greatly affected. Moreover, when debugging the zero-sequence voltage, the zero-sequence voltage sensor of each phase needs to be debugged very accurately so that the three phases can synthesize a qualified zero-sequence voltage. Therefore, it is necessary to design a simple and safe primary and secondary fusion sensor testing device. Utility Model Content
[0004] The purpose of this invention is to provide a simple and safe primary and secondary fusion sensor testing device to solve the problems of high cost, low debugging efficiency and complex use of existing sensor testing devices.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a simple and safe primary and secondary fusion sensor testing device, including a device body, a changeover switch, a high-voltage input socket, a measured signal output, an adjustment unit, and a safety switch handle. Voltage sensor sockets are evenly arranged on the device body, and a high-voltage input socket and a measured signal output are provided on the top of the device body. An adjustment unit is provided between the high-voltage input socket and the measured signal output. The adjustment unit is fixedly connected to the device body. A safety switch handle is provided on the device body, and a PCB board is embedded inside the device body. The PCB board has a control circuit.
[0006] As a further technical solution of this utility model, the control circuit consists of a current transformer calibrator and a high voltage generator. The current transformer calibrator is connected to the signal to be measured through an adjustment unit, and the standard signal generated by the current transformer calibrator is connected to the ground terminal.
[0007] As a further technical solution of this utility model, the two pins of the high voltage generator are respectively connected to the two ends of the safety switch, and the high voltage output generated by the high voltage generator is connected to the pin of TP1. The pin of TP1 is connected to pin 1 of transformer T1, pin 3 of the transformer is connected to the ground terminal, and the transformer calibrator is respectively connected to pin 4 and pin 6 of the transformer.
[0008] As a further technical solution of this utility model, the adjustment unit is connected in series with capacitors C1, C5, C9, C11, C13, C15, and C17, and capacitors C1, C5, C9, C11, C13, C15, and C17 are all connected in series with TP1. TP1 is connected in series with capacitors C7 and C3, capacitor C1 is connected in series with capacitor C2, capacitor C3 is connected in series with capacitor C4, capacitor C5 is connected in series with capacitor C6, capacitor C7 is connected in series with capacitor C8, capacitor C9 is connected in series with capacitor C10, capacitor C11 is connected in series with capacitor C12, capacitor C13 is connected in series with capacitor C14, capacitor C15 is connected in series with capacitor C16, and capacitor C17 is connected in series with capacitor C18.
[0009] As a further technical solution of this utility model, capacitors C1, C3, C5, C7, C9, C11, C13, C15 and C17 are connected in parallel in sequence, and capacitors C2, C4, C6, C8, C10, C12, C14, C16 and C18 are all connected in series on the ground terminal.
[0010] This utility model provides a simple and safe primary and secondary fusion sensor testing device. Its advantages are as follows: The outputs of nine sensors are connected to a selector switch via an adjustment unit. The output of the selector switch is connected to the input of a current transformer calibrator. The high-voltage terminals of the sensors are connected to high-voltage sockets. A high-voltage signal is provided by a high-voltage generator. Different channels can be easily switched for debugging via the selector switch. This simple operation effectively improves the debugging efficiency of the sensors. The adjustment unit and sensors can only be placed by pressing the safety switch handle on the device. After placement, pressing the safety switch handle starts the high-voltage generator to produce a high-voltage signal. After debugging, lifting the safety switch handle stops the high-voltage generator, allowing the adjustment unit and sensors to be removed. This effectively ensures the personal safety of the operator. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a three-dimensional view of the overall structure of this utility model;
[0013] Figure 2 This is a side view of the structure of this utility model;
[0014] Figure 3 This is a schematic diagram of the sensor signal types in this utility model.
[0015] In the diagram: 1. Device body; 2. Changeover switch; 3. High voltage input socket; 4. Measured signal output; 5. Adjustment unit; 6. Safety switch handle; 7. Voltage sensor socket; 8. Control circuit. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0018] Please see the appendix Figure 1 -Appendix Figure 3This utility model provides an embodiment of a simple and safe primary and secondary fusion sensor testing device, comprising a device body 1, a changeover switch 2, a high-voltage input socket 3, a measured signal output 4, an adjustment unit 5, and a safety switch handle 6. Voltage sensor sockets 7 are evenly distributed on the device body 1, and the top of the device body 1 has the high-voltage input socket 3 and the measured signal output 4. An adjustment unit 5 is located between the high-voltage input socket 3 and the measured signal output 4, and is fixedly connected to the device body 1. The device body 1 has a safety switch handle 6, and a PCB board is embedded inside the device body 1. The PCB board has a control circuit 8, which consists of a current transformer calibrator and a high-voltage generator. The current transformer calibrator is connected to the measured signal through the adjustment unit 5, and the standard signal generated by the current transformer calibrator is connected to the ground terminal. The two pins of the high-voltage generator are respectively connected to the two ends of the safety switch, and the high-voltage output generated by the high-voltage generator is connected to the pin of TP1. The pin of TP1 is connected to pin 1 of transformer T1, and pin 3 of the transformer is connected to the ground terminal. The transformer calibrator is connected to pins 4 and 6 of the transformer. The adjustment unit (5) is connected in series with capacitors C1, C5, C9, C11, C13, C15, and C17. All capacitors C1, C5, C9, C11, C13, C15, and C17 are connected in series with TP1. TP1 is connected in series with capacitors C7 and C3. Capacitor C1 is connected in series with capacitor C2. Capacitor C3 is connected in series with capacitor C4. Capacitor C5 is connected in series with capacitor C6. Capacitor C7 is connected in series with capacitor C7. C8, C9 are connected in series with C10, C11 in series with C12, C13 in series with C14, C15 in series with C16, C17 in series with C18, and C1, C3, C5, C7, C9, C11, C13, C15 and C17 are connected in parallel in sequence. C2, C4, C6, C8, C10, C12, C14, C16 and C18 are all connected in series with the ground terminal.
[0019] Specifically, in use, firstly, the outputs of the nine sensors are connected to the changeover switch 2 via the adjustment unit 5. The output of the changeover switch 2 is then connected to the input of the current transformer calibrator. The high-voltage terminals of the sensors are connected to the high-voltage sockets. A high-voltage signal is provided by the high-voltage generator. Different channels can be easily switched for debugging via the changeover switch 2, which simplifies operation and effectively improves the debugging efficiency of the sensors. The adjustment unit 5 and the sensors can only be placed by pressing the safety switch handle 6 on the device. After placement, pressing the safety switch handle 6 starts the high-voltage generator to produce a high-voltage signal. After debugging, lifting the safety switch handle 6 stops the high-voltage generator from working. Only then can the adjustment unit 5 and the sensors be removed, effectively ensuring the personal safety of the operator.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.
[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A simple and safe primary and secondary fusion sensor testing device, comprising a device body (1), a changeover switch (2), a high-voltage input socket (3), a measured signal output (4), an adjustment unit (5), and a safety switch handle (6), characterized in that: The device body (1) is uniformly provided with voltage sensor sockets (7), and the top of the device body (1) is provided with a high voltage input socket (3) and a measured signal output (4). An adjustment unit (5) is provided between the high voltage input socket (3) and the measured signal output (4). The adjustment unit (5) is fixedly connected to the device body (1). The device body (1) is provided with a safety switch handle (6), and a PCB board is embedded inside the device body (1). A control circuit (8) is provided on the PCB board.
2. The simple and safe primary and secondary fusion sensor testing device according to claim 1, characterized in that: The control circuit (8) consists of a current transformer calibrator and a high voltage generator. The current transformer calibrator is connected to the signal to be measured through the adjustment unit (5), and the standard signal generated by the current transformer calibrator is connected to the ground terminal.
3. The simple and safe primary and secondary fusion sensor testing device according to claim 2, characterized in that: The two pins of the high voltage generator are connected to the two ends of the safety switch, and the high voltage output generated by the high voltage generator is connected to the pin of TP1. The pin of TP1 is connected to pin 1 of transformer T1, and pin 3 of the transformer is connected to the ground terminal. The transformer calibrator is connected to pins 4 and 6 of the transformer.
4. The simple and safe primary and secondary fusion sensor testing device according to claim 2, characterized in that: The adjustment unit (5) is connected in series with capacitors C1, C5, C9, C11, C13, C15 and C17 respectively. All capacitors C1, C5, C9, C11, C13, C15 and C17 are connected in series with TP1. TP1 is connected in series with capacitors C7 and C3 respectively. Capacitor C1 is connected in series with capacitor C2. Capacitor C3 is connected in series with capacitor C4. Capacitor C5 is connected in series with capacitor C6. Capacitor C7 is connected in series with capacitor C8. Capacitor C9 is connected in series with capacitor C10. Capacitor C11 is connected in series with capacitor C12. Capacitor C13 is connected in series with capacitor C14. Capacitor C15 is connected in series with capacitor C16. Capacitor C17 is connected in series with capacitor C18.
5. The simple and safe primary and secondary fusion sensor testing device according to claim 4, characterized in that: The capacitors C1, C3, C5, C7, C9, C11, C13, C15, and C17 are connected in parallel in sequence, while the capacitors C2, C4, C6, C8, C10, C12, C14, C16, and C18 are all connected in series to the ground terminal.