CN210894578U

CN210894578U - Cable shock wave partial discharge detection device

Info

Publication number: CN210894578U
Application number: CN201921429187.1U
Authority: CN
Inventors: 古浩畅
Original assignee: Guangzhou Zhaoneng Co ltd
Current assignee: Guangzhou Zhaoneng Co ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-06-30
Anticipated expiration: 2029-08-29

Abstract

The utility model discloses a cable shock ripples partial discharge detection device, including detecting a section of thick bamboo, shielding layer and wave filter, it has to detect a section of thick bamboo inboard bonding the shielding layer, be provided with on the detecting a section of thick bamboo inner wall the wave filter, the wave filter with it passes through the screw connection to detect a section of thick bamboo, the wave filter lower extreme is provided with noise transducer, the wave filter with the noise transducer electricity is connected, the noise transducer lower extreme is provided with digital analog converter. Has the advantages that: the utility model discloses a set up the shielding layer, can fall for the shielding with the magnetic field that self components and parts produced, reduce testing result's error, improve the stability of cable operation, through setting up data analysis circuit module and display panel, can be with detecting data and processing data integration, simple structure, improve the device practicality.

Description

Cable shock wave partial discharge detection device

Technical Field

The utility model relates to a cable partial discharge detection technical field, concretely relates to cable shock ripples partial discharge detection device.

Background

With the wide application of the cable in the urban power grid, the insulation state of the cable is more and more emphasized, the frequency of insulation faults is high, and great loss is brought to safe production and operation. The partial discharge of the cable is closely related to the insulation condition of the cable, so that the insulation state is judged by monitoring the partial discharge, which is an effective means for realizing insulation monitoring and diagnosis, so that the running state of the power cable can be accurately and timely judged, and the safe and reliable running of the system is ensured to a great extent.

The existing cable shock wave partial discharge detection device has the defects that the detection result has errors due to the interference of a magnetic field between self components, and the running stability of the cable is reduced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, the cable shock wave partial discharge detection device is provided, and the problems that the detection result has errors and the stability of the operation of a cable is reduced due to the fact that the existing cable shock wave partial discharge detection device has magnetic field interference between self components are solved.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a cable shock ripples partial discharge detection device, including detecting a section of thick bamboo, shielding layer and wave filter, it has to detect a section of thick bamboo inboard bonding the shielding layer, be provided with on the detecting a section of thick bamboo inner wall the wave filter, the wave filter with detecting a section of thick bamboo and passing through the screw connection, the wave filter lower extreme is provided with noise transducer, the wave filter with the noise transducer electricity is connected, the noise transducer lower extreme is provided with digital analog converter, noise transducer with digital analog converter electricity is connected, digital analog converter one side is provided with data analysis circuit module, digital analog converter with data analysis circuit module electricity is connected.

Furthermore, the welding of detection section of thick bamboo lower extreme has the base, the base lower extreme is provided with the connecting axle, the connecting axle with the base passes through the screw connection, the connecting axle inboard is provided with the universal wheel, the universal wheel with the connecting axle passes through the bearing and connects.

Through adopting above-mentioned technical scheme, the liquid universal wheel can make the device easily remove, uses manpower sparingly.

Furthermore, a top cover is arranged at the upper end of the detection cylinder and connected with the detection cylinder through a hinge.

By adopting the technical scheme, the top cover can be lifted by a detector, the components inside the detection cylinder are maintained and checked, and the safety of the device is improved.

Further, be provided with the switch on the detection section of thick bamboo outer wall, the switch with the detection section of thick bamboo passes through the screw connection, switch one side is provided with display panel, display panel with the switch electricity is connected.

By adopting the technical scheme, the switch can control the work of the device, and the display panel can display the data information of partial discharge after the detection processing of the device for the reference of detection personnel.

Furthermore, a rotating seat is arranged above the top cover and connected with the top cover through a bearing.

Through adopting above-mentioned technical scheme, the roating seat can rotate on the device, makes the device can detect the partial discharge signal of cable fast.

Furthermore, the upper end of the rotating seat is welded with a support rod, and a detection rod penetrates through the support rod.

By adopting the technical scheme, the detection rod and the support rod rotate together along with the rotating seat, so that the high-frequency pulse sensor can accurately and quickly detect the discharge signal.

Furthermore, high-frequency pulse sensors are arranged at two ends of the detection rod, and the detection rod is connected with the high-frequency pulse sensors through screws.

By adopting the technical scheme, the high-frequency pulse sensor can accurately detect the high-frequency signal generated by the partial discharge of the cable.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

1. in order to solve the problems that the existing cable shock wave partial discharge detection device has errors in detection results due to the interference of a magnetic field between self components, and the stability of the operation of the cable is reduced, the utility model discloses a shielding layer is arranged, the magnetic field generated by the self components can be shielded, the error of the detection results is reduced, and the stability of the operation of the cable is improved;

2. for solving current cable shock ripples partial discharge detection device and generally adopting on-line measuring's mode, need with backstage networking just can detect, equipment is bigger and the system is complicated, reduces the problem of device practicality, the utility model discloses a set up data analysis circuit module and display panel, can be with detecting data and processing data integration, simple structure improves the device practicality.

Drawings

Fig. 1 is a schematic structural diagram of a cable oscillatory wave partial discharge detection device according to the present invention;

fig. 2 is a cross-sectional view of a detection cylinder in the cable oscillatory wave partial discharge detection device of the present invention;

fig. 3 is a circuit block diagram of the cable shock wave partial discharge detection device of the present invention.

The reference numerals are explained below:

1. a support bar; 2. a switch; 3. a universal wheel; 4. a connecting shaft; 5. a base; 6. a detection cylinder; 7. a display panel; 8. a top cover; 9. a rotating base; 10. a high frequency pulse sensor; 11. a detection lever; 12. a filter; 13. a noise sensor; 14. a digital-to-analog converter; 15. a data analysis circuit module; 16. and a shielding layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-3, the device for detecting partial discharge of cable oscillatory wave in this embodiment includes a detecting cylinder 6, a shielding layer 16 and a filter 12, the inner side of the detecting cylinder 6 is bonded with the shielding layer 16, the inner wall of the detecting cylinder 6 is provided with the filter 12, the filter 12 is connected with the detecting cylinder 6 by screws, the lower end of the filter 12 is provided with a noise sensor 13, the filter 12 is electrically connected with the noise sensor 13, the lower end of the noise sensor 13 is provided with a digital-to-analog converter 14, the noise sensor 13 is electrically connected with the digital-to-analog converter 14, one side of the digital-to-analog converter 14 is provided with a data analyzing circuit module 15, the lower end of the detecting cylinder 6 is welded with a base 5, the lower end of the base 5 is provided with a connecting shaft 4, the connecting shaft 4 is, universal wheel 3 passes through the bearing with connecting axle 4 and is connected, 6 upper ends of detection section of thick bamboo are provided with top cap 8, top cap 8 passes through hinge connection with detection section of thick bamboo 6, be provided with switch 2 on the 6 outer walls of detection section of thick bamboo, switch 2 passes through screw connection with detection section of thick bamboo 6, switch 2 one side is provided with display panel 7, display panel 7 is connected with switch 2 electricity, 8 tops of top cap are provided with roating seat 9, roating seat 9 passes through the bearing with top cap 8 and is connected, the welding of roating seat 9 upper end has bracing piece 1, it has test bar 11 to run through in the bracing piece 1, 11 both ends of test bar are provided with high-frequency pulse sensor 10, test bar 11 passes.

As shown in fig. 2, in this embodiment, the shielding layer 16 can shield the magnetic field generated by the component itself, so as to reduce the error of the detection result and improve the stability of the cable operation.

As shown in fig. 1-2, in this embodiment, the data analysis circuit module 15 is combined with the display panel 7, so that the detection data and the processing data can be integrated, the structure is simple, and the practicability of the device is improved.

The specific implementation process of this embodiment is as follows: firstly, the device is moved under a cable to be detected, the universal wheel 3 can facilitate the movement of the device, then, the switch 2 is turned on, the device starts working, under the action of the rotary seat 9, the detection rod 11 can drive the high-frequency pulse sensor 10 to rotate and detect, the detection accuracy is improved, when the cable is in partial discharge, the high-frequency pulse sensor 10 can accurately detect a high-frequency signal generated by the partial discharge of the cable, then the high-frequency signal is transmitted to the filter 12, the clutter signal in the high-frequency signal can be filtered by the filter 12, then the filtered high-frequency signal is transmitted to the noise sensor 13 to be denoised, the noise sensor 13 is denoised by utilizing a denoising algorithm to carry out secondary filtering, a relatively pure high-frequency signal is output, the high-frequency signal is converted into a digital signal by the digital-analog converter 14, the digital signal can be analyzed and processed by the data analysis circuit module 15, supply the expert to judge, this device can realize detecting, handles the integration, and simple structure improves the device practicality, and shielding layer 16 can be fallen for shielding the magnetic field that self components and parts produced simultaneously, reduces the error of testing result, improves the stability of cable operation.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. The utility model provides a cable shock wave partial discharge detection device which characterized in that: including detecting a section of thick bamboo (6), shielding layer (16) and wave filter (12), it has to detect a section of thick bamboo (6) inboard bonding shielding layer (16), be provided with on detecting a section of thick bamboo (6) inner wall wave filter (12), wave filter (12) with detect a section of thick bamboo (6) and pass through screwed connection, wave filter (12) lower extreme is provided with noise sensor (13), wave filter (12) with noise sensor (13) electricity is connected, noise sensor (13) lower extreme is provided with digital analog converter (14), noise sensor (13) with digital analog converter (14) electricity is connected, digital analog converter (14) one side is provided with data analysis circuit module (15), digital analog converter (14) with data analysis circuit module (15) electricity is connected.

2. The apparatus according to claim 1, wherein the apparatus comprises: the detection device is characterized in that a base (5) is welded at the lower end of the detection cylinder (6), a connecting shaft (4) is arranged at the lower end of the base (5), the connecting shaft (4) is connected with the base (5) through screws, universal wheels (3) are arranged on the inner side of the connecting shaft (4), and the universal wheels (3) are connected with the connecting shaft (4) through bearings.

3. The apparatus according to claim 2, wherein the apparatus comprises: detect and be provided with switch (2) on a section of thick bamboo (6) outer wall, switch (2) with detect a section of thick bamboo (6) and pass through the screw connection, switch (2) one side is provided with display panel (7), display panel (7) with switch (2) electricity is connected.

4. The apparatus according to claim 3, wherein the apparatus comprises: the upper end of the detection barrel (6) is provided with a top cover (8), and the top cover (8) is connected with the detection barrel (6) through a hinge.

5. The apparatus according to claim 4, wherein the apparatus further comprises: a rotating seat (9) is arranged above the top cover (8), and the rotating seat (9) is connected with the top cover (8) through a bearing.

6. The apparatus according to claim 5, wherein the apparatus further comprises: the welding of roating seat (9) upper end has bracing piece (1), it has test rod (11) to run through in bracing piece (1).

7. The apparatus according to claim 6, wherein the apparatus comprises: the high-frequency pulse sensor (10) is arranged at two ends of the detection rod (11), and the detection rod (11) is connected with the high-frequency pulse sensor (10) through screws.