CN210487904U - Power signal integration detection sensing system - Google Patents
Power signal integration detection sensing system Download PDFInfo
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- CN210487904U CN210487904U CN201920801206.2U CN201920801206U CN210487904U CN 210487904 U CN210487904 U CN 210487904U CN 201920801206 U CN201920801206 U CN 201920801206U CN 210487904 U CN210487904 U CN 210487904U
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Abstract
The utility model discloses a power signal integrated detection sensing system, which comprises a working power supply, a partial discharge sensor and a detection module; the detection module is internally provided with a low-pass circuit, a DC/DC circuit, a high-pass circuit, a detection circuit, an operational amplifier circuit and a filter circuit; the low-pass circuit is connected with the DC/DC circuit in series, and the low-pass circuit and the DC/DC circuit are connected with the high-pass circuit in parallel at the same time to form a group of parallel circuits; the parallel circuit is connected with the detection circuit, the DC/DC circuit (32) is connected with the operational amplifier circuit, and the detection circuit is communicated with the operational amplifier circuit; the operational amplifier circuit is also connected with the filter circuit; the low-pass circuit is characterized by further comprising a coaxial connector, wherein the coaxial connector is connected with one end, close to the low-pass circuit, of the parallel circuit.
Description
Technical Field
The utility model relates to a power equipment field specifically is a power signal integration detection sensing system.
Background
In order to prevent introducing too much interference when detecting the power signal, the detection modules for the output signal of the partial discharge sensor need to be distributed locally at the monitoring point. The operational amplifier circuit and the detection circuit in the detection module need to be connected with a direct current working power supply, two cables need to be output to the detection module in the traditional mode, one cable is used for partial discharge signal transmission, and the other cable is used for providing the working power supply of the detection module. Under such a condition, when a plurality of groups of units work simultaneously, the wiring is more and more disordered, the construction and the maintenance are troublesome, and the efficiency is greatly reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a following technical scheme: a power signal integrated detection sensing system comprises a working power supply, a partial discharge sensor and a detection module; the detection module is internally provided with a low-pass circuit, a DC/DC circuit, a high-pass circuit, a detection circuit, an operational amplifier circuit and a filter circuit; the low-pass circuit is connected with the DC/DC circuit in series, and the low-pass circuit and the DC/DC circuit are connected with the high-pass circuit in parallel at the same time to form a group of parallel circuits; the parallel circuit is connected with the detection circuit, the DC/DC circuit (32) is connected with the operational amplifier circuit, and the detection circuit is communicated with the operational amplifier circuit; the operational amplifier circuit is also connected with the filter circuit; the low-pass circuit is characterized by further comprising a coaxial connector, wherein the coaxial connector is connected with one end, close to the low-pass circuit, of the parallel circuit.
Preferably, the device further comprises a coaxial cable, and one end of the coaxial cable is connected with one end of the detection module, which is close to the coaxial connector.
Preferably, one end of the detection module, which is close to the filter circuit, is connected to the partial discharge sensor.
Preferably, the coaxial cable is connected to the working power supply through another set of coaxial connectors.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model discloses insert same root coaxial cable transmission with DC power supply and signal output respectively through low pass circuit and high pass circuit to low pass circuit and high pass circuit have been added equally in the detection module, the last direct current of coaxial cable obtains DC power supply through obtaining behind the low pass circuit, this power is again through DC/DC module, obtain the working power supply that detection circuit and operational amplifier circuit need, the result of sensor output is by high pass circuit to the collection unit provides signal output. Therefore, the two cables can be unified into one coaxial cable through the matching change of the detection module, the construction and the maintenance are more convenient, and the working efficiency is greatly improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the structure of the working power supply of the present invention;
in the figure: the device comprises a working power supply 1, a partial discharge sensor 2, a detection module 3, a low-pass circuit 31, a DC/DC circuit 32, a high-pass circuit 33, a detection circuit 34, an operational amplifier circuit 35, a filter circuit 36, a coaxial connector 4 and a coaxial cable 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, a power signal integrated detection sensing system comprises a working power supply 1, a partial discharge sensor 2 and a detection module 3; the method is characterized in that: the detection module 3 is internally provided with a low-pass circuit 31, a DC/DC circuit 32, a high-pass circuit 33, a detection circuit 34, an operational amplifier circuit 35 and a filter circuit 36; the low-pass circuit 31 is connected in series with the DC/DC circuit 32, and both are connected in parallel with the high-pass circuit 33 to form a group of parallel circuits; the parallel circuit is connected with the detection circuit 34, the DC/DC circuit 32 is connected with the operational amplifier circuit 35, and the detection circuit 34 is communicated with the operational amplifier circuit 35; the operational amplifier circuit 35 is further connected to the filter circuit 36; the low-pass circuit further comprises a coaxial connector 4, and the coaxial connector 4 is connected with one end, close to the low-pass circuit 31, of the parallel circuit.
The detection module further comprises a coaxial cable 5, wherein one end of the coaxial cable 5 is connected with one end, close to the coaxial connector 4, of the detection module 3; one end of the detection module 3 close to the filter circuit 36 is connected with the partial discharge sensor 2; the coaxial cable 5 is connected with the working power supply 1 through another group of coaxial connectors 4.
To sum up, the utility model discloses an added low pass circuit 31 and high pass circuit 33 in detection module 3, obtained DC power supply after the direct current on the coaxial cable 5 passes through low pass circuit 31, this power is again through DC/DC circuit 32, obtain detection circuit 34 and the required power signal of fortune discharge circuit 35, the result of finally putting sensor 2 output in office provides signal output by high pass circuit 33 to the acquisition unit, will originally need to merge into a coaxial cable 5 by the signal transmission that two cables just can be accomplished.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A power signal integrated detection sensing system comprises a working power supply (1), a partial discharge sensor (2) and a detection module (3); the method is characterized in that: the detection module (3) is internally provided with a low-pass circuit (31), a DC/DC circuit (32), a high-pass circuit (33), a detection circuit (34), an operational amplifier circuit (35) and a filter circuit (36); the low-pass circuit (31) is connected with the DC/DC circuit (32) in series, and the low-pass circuit and the DC/DC circuit are connected with the high-pass circuit (33) in parallel at the same time to form a group of parallel circuits; the parallel circuit is connected with the detection circuit (34), the DC/DC circuit (32) is connected with the operational amplifier circuit (35), and the detection circuit (34) is communicated with the operational amplifier circuit (35); the operational amplifier circuit (35) is also connected with the filter circuit (36); the low-pass circuit further comprises a coaxial connector (4), and the coaxial connector (4) is connected with one end, close to the low-pass circuit (31), of the parallel circuit.
2. The power signal integrated detection sensing system of claim 1, wherein: the detection device is characterized by further comprising a coaxial cable (5), wherein one end of the coaxial cable (5) is connected with one end, close to the coaxial connector (4), of the detection module (3).
3. The power signal integrated detection sensing system of claim 1, wherein: one end, close to the filter circuit (36), of the detection module (3) is connected with the partial discharge sensor (2).
4. The power signal integrated detection sensing system of claim 2, wherein: the coaxial cable (5) is connected with the working power supply (1) through another group of coaxial connectors (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920801206.2U CN210487904U (en) | 2019-05-30 | 2019-05-30 | Power signal integration detection sensing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920801206.2U CN210487904U (en) | 2019-05-30 | 2019-05-30 | Power signal integration detection sensing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210487904U true CN210487904U (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920801206.2U Active CN210487904U (en) | 2019-05-30 | 2019-05-30 | Power signal integration detection sensing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210487904U (en) |
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2019
- 2019-05-30 CN CN201920801206.2U patent/CN210487904U/en active Active
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