CN209784478U - Switch cabinet partial discharge detection system - Google Patents
Switch cabinet partial discharge detection system Download PDFInfo
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- CN209784478U CN209784478U CN201822239038.0U CN201822239038U CN209784478U CN 209784478 U CN209784478 U CN 209784478U CN 201822239038 U CN201822239038 U CN 201822239038U CN 209784478 U CN209784478 U CN 209784478U
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- 238000001514 detection method Methods 0.000 title abstract description 15
- 230000001052 transient effect Effects 0.000 claims abstract description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 12
- 229910001416 lithium ion Inorganic materials 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 10
- 238000013500 data storage Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses a cubical switchboard partial discharge detecting system, including ultrasonic sensor, earth electric wave sensor, industrial computer, display module, ultrasonic sensor is used for gathering the ultrasonic signal that partial discharge produced, earth electric wave sensor is used for gathering transient state to the ground voltage signal, ultrasonic sensor, earth electric wave sensor are connected through the input of AD converter with the industrial computer, the output and the display module of industrial computer are connected. The utility model has the advantages that: two types of sensors are employed: the earth electric wave sensor and the ultrasonic sensor are used for jointly detecting partial discharge signals, and two detection modes are integrated, so that the possibility of missing detection is reduced, and the detection accuracy is improved; the integrated RS232 interface makes things convenient for the PC to be connected with the industrial computer through the RS232 interface, reads the data of saving in the memory that detects.
Description
Technical Field
The utility model relates to a field of patrolling and examining, in particular to a detecting system that is used for cubical switchboard partial discharge to patrol and examine.
Background
The partial discharge detection system of prior art's cubical switchboard often adopts a mode to patrol and examine, appears leaking easily and examines, phenomenon such as wrong detection, in order to improve the accuracy that detects, promotes the partial discharge's of cubical switchboard monitoring, and this application provides a new cubical switchboard's partial discharge detector.
Disclosure of Invention
the invention aims to overcome the defects of the prior art and provides a switch cabinet partial discharge detection system which monitors the partial discharge of a switch cabinet by adopting a detection mode of an ultrasonic sensor and a ground electric wave sensor.
in order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a cubical switchboard partial discharge detecting system, includes ultrasonic sensor, earth electric wave sensor, industrial computer, display module, ultrasonic sensor is used for gathering the ultrasonic signal that partial discharge produced, earth electric wave sensor is used for gathering transient state to ground voltage signal, ultrasonic sensor, earth electric wave sensor are connected through the input of AD converter with the industrial computer, the output and the display module of industrial computer are connected.
The system also comprises a power supply subsystem, wherein the power supply subsystem comprises a lithium ion battery and a charging conversion circuit, the alternating current is connected with the lithium ion battery after passing through the charging conversion circuit and is used for charging the lithium ion battery, and the lithium ion battery is connected with the industrial personal computer.
The industrial personal computer comprises a main control chip and a memory, wherein the main control chip is connected with the memory and used for storing acquired data.
The industrial computer comprises an RS232 interface, and the main control chip is connected with the RS232 interface and the PC.
The industrial personal computer comprises a communication chip, and the main control chip is connected with the data storage server through the communication chip and used for uploading data to the data storage server.
The communication chip adopts a 2G communication chip.
The number of the ultrasonic sensors and the earth electric wave sensors is multiple.
The main control chip presets an ultrasonic signal threshold and a ground electric wave signal threshold, and the output end of the main control chip is connected with the alarm.
the main control chip is connected with the USB interface circuit and is used for being externally connected with a mouse and a keyboard and being externally connected with a mobile storage device.
The utility model has the advantages that: two types of sensors are employed: the earth electric wave sensor and the ultrasonic sensor are used for jointly detecting partial discharge signals, and two detection modes are integrated, so that the possibility of missing detection is reduced, and the detection accuracy is improved; the RS232 interface is integrated, so that the PC can be conveniently connected with an industrial personal computer through the RS232 interface to read the detected data stored in the memory; the data are uploaded to the cloud terminal for storage in an infinite transmission mode, so that the cloud terminal can be conveniently accessed at any time to call the data, and remote monitoring is facilitated; setting a signal threshold value, and automatically alarming when the detected signal is greater than the set threshold value; the integrated USB interface is convenient for external connection of a mouse and a keyboard and external connection of a mobile storage device.
Drawings
The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:
Fig. 1 is a structural schematic diagram of the present invention.
Detailed Description
The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.
the utility model discloses a principle is that realize the control to partial discharge through two kinds of sensors, and the sensor of adoption includes ultrasonic sensor, earth electric wave sensor, can comparatively detect the partial discharge phenomenon that probably appears comprehensively through these two kinds of sensors. The monitoring system specifically comprises an ultrasonic sensor, a geoelectric wave sensor, an industrial personal computer and a display module, wherein the ultrasonic sensor is used for acquiring an ultrasonic signal generated by partial discharge, the geoelectric wave sensor is used for acquiring a transient earth voltage signal, the ultrasonic sensor and the geoelectric wave sensor are connected with the input end of the industrial personal computer through an AD converter, and the output end of the industrial personal computer is connected with the display module. The number of ultrasonic sensor, earth electric wave sensor is a plurality of for gather multiunit data and in order to increase the accuracy that detects or be used for conveniently integratedly detecting a plurality of cubical switchboard. The AD converter is used for converting the detected analog signal into a digital signal processed by the DSP. The industrial personal computer comprises a main control chip and a memory, wherein the main control chip is connected with the memory, the memory is used for storing collected data, the main control chip adopts a DSP chip in the prior art, such as a DSP68000 series of Motorola company, and analyzes and processes collected earth electric wave signals and ultrasonic wave signals, and then the signals are controlled and displayed on a display module. Through the detection of the ultrasonic signal and the earth electric wave signal, partial discharge can be effectively and timely found, and the detection rate is increased.
The industrial personal computer comprises an RS232 interface and a USB interface circuit, the main control chip is respectively connected with the RS232 interface and the USB interface to communicate with external equipment, and is connected with an external PC through the RS232 interface for data transmission and receiving control signals; the USB interface can be externally connected with a mouse keyboard, a mobile storage device and the like, so that the storage, functions and the like of a main control chip of the industrial personal computer are expanded, and a user can modify internal programs of the industrial personal computer through peripheral equipment, storage and the like conveniently.
in order to facilitate further monitoring, the industrial personal computer comprises a 2G communication chip, and the main control chip is connected with the data storage server through the communication chip and used for uploading data to the data storage server. Various mobile intelligent terminals connected with the data storage server can access data in the data storage server in a form of accessing the server to remotely monitor related data information. The cloud data server is arranged in the monitoring room and is provided with a display, so that the monitoring of the monitoring room is facilitated.
In order to give an alarm in time and remind an inspector of occurrence of partial discharge, the main control chip presets an ultrasonic signal threshold and a ground electric signal threshold, the output end of the main control chip is connected with the alarm, whether the partial discharge is sent or not is judged according to the comparison of actual data and the threshold, if the partial discharge phenomenon is judged according to the comparison of data, an alarm signal of the alarm is sent in time to remind the inspector of overhauling and checking.
The power supply subsystem can convert normal commercial power into voltage required by the system, is provided with a lithium battery and a charging module, and is convenient to use when no commercial power exists. The power supply subsystem comprises a lithium ion battery and a charging conversion circuit, wherein alternating current is connected with the lithium ion battery after passing through the charging conversion circuit and is used for charging the lithium ion battery, and the lithium ion battery is connected with the industrial personal computer and supplies power for various power utilization chips in the industrial personal computer.
The utility model discloses a relevant data is gathered in real time to two kinds of sensors of ultrasonic wave, earth electric wave, and the testing result is comparatively accurate, leaks to examine the partial discharge data that the rate significantly reduced can accomplish the real-time detection cubical switchboard simultaneously, can accomplish continuous measurement, and the detection data who acquires have the continuity, and convenient analysis is looked over, can embody the characteristic that the cubical switchboard office was put, conveniently judges the severity that the office was put.
It is clear that the specific implementation of the invention is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the invention.
Claims (1)
1. A cubical switchboard partial discharge detecting system which characterized in that: the device comprises an ultrasonic sensor, a geoelectric wave sensor, an industrial personal computer and a display module, wherein the ultrasonic sensor is used for acquiring ultrasonic signals generated by partial discharge, the geoelectric wave sensor is used for acquiring transient earth voltage signals, the ultrasonic sensor and the geoelectric wave sensor are connected with the input end of the industrial personal computer through an AD (analog-to-digital) converter, and the output end of the industrial personal computer is connected with the display module;
The system also comprises a power supply subsystem, wherein the power supply subsystem comprises a lithium ion battery and a charging conversion circuit, alternating current is connected with the lithium ion battery after passing through the charging conversion circuit and is used for charging the lithium ion battery, and the lithium ion battery is connected with the industrial personal computer;
The industrial personal computer comprises a main control chip and a memory, wherein the main control chip is connected with the memory and is used for storing acquired data;
the industrial personal computer comprises an RS232 interface, and the main control chip is connected with the RS232 interface and the PC;
The industrial personal computer comprises a communication chip, and the main control chip is connected with the data storage server through the communication chip and is used for uploading data to the data storage server;
the communication chip adopts a 2G communication chip;
The number of the ultrasonic sensors and the earth electric wave sensors is multiple;
The main control chip is preset with an ultrasonic signal threshold and a ground electric signal threshold, and the output end of the main control chip is connected with the alarm;
the main control chip is connected with the USB interface circuit and is used for being externally connected with a mouse and a keyboard and being externally connected with a mobile storage device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239038.0U CN209784478U (en) | 2018-12-29 | 2018-12-29 | Switch cabinet partial discharge detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239038.0U CN209784478U (en) | 2018-12-29 | 2018-12-29 | Switch cabinet partial discharge detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209784478U true CN209784478U (en) | 2019-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822239038.0U Active CN209784478U (en) | 2018-12-29 | 2018-12-29 | Switch cabinet partial discharge detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209784478U (en) |
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2018
- 2018-12-29 CN CN201822239038.0U patent/CN209784478U/en active Active
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