CN215526008U - Partial discharge detection terminal capable of automatically collecting environmental data - Google Patents

Abstract

The utility model discloses a partial discharge detection terminal for automatically acquiring environmental data, which comprises a data acquisition front end, a partial discharge detection terminal and a service data processing platform which are sequentially connected, wherein the data acquisition front end comprises a transient ground voltage sensor, an ultrasonic sensor, a ultrahigh frequency sensor and a temperature and humidity sensor. According to the technical scheme, automatic acquisition and data communication are achieved through the partial discharge detection terminal in the partial discharge detection of the power equipment, accurate temperature and humidity data and partial discharge detection data can be acquired and sent to the service platform, data support and information reference are provided for field equipment detection environment, equipment partial discharge fault diagnosis, defect elimination and case filing, and upgrading optimization of a power system is achieved.

Description

Partial discharge detection terminal capable of automatically collecting environmental data

Technical Field

The utility model relates to the technical field of partial discharge detection, in particular to a partial discharge detection terminal capable of automatically collecting environmental data.

Background

The method aims at the problem that in the process of carrying out partial discharge live detection on a power distribution room and a ring main unit in the existing power operation field, an environment hygrothermograph is often required to be carried to record the detection environment of the field, and a detection report or a recording system is written after manual recording. The partial discharge change of environment temperature and humidity data corresponding to analysis is an important parameter, recording and entering are needed in each detection, no detection device capable of partial discharge and synchronous temperature and humidity acquisition exists in the current market, in order to solve the field detection efficiency and reduce the operation process, the partial discharge detection terminal is researched to automatically acquire and store temperature and humidity data, and the temperature and humidity data are automatically supplied to a service platform.

Data show that the optimal time for fire extinguishing is within 3 minutes after the fire occurs, and economic loss and personnel damage can be reduced to the minimum if a scientific mode is adopted for timely extinguishing fire. The existing automatic fire extinguishers are all used for range-wide indiscriminate fire extinguishment, and mainly use water as a fire extinguishing material, so that the existing automatic fire extinguishers cannot extinguish fire quickly aiming at a fire source and are not suitable for transformer substations which are various areas using electric appliances.

Chinese patent document CN201955439U discloses an "on-line partial discharge detection system". The device comprises a current sensor for detecting the medium and high voltage cables; the output end of the current sensor is connected with the input ends of the amplifying module and the phase detection module respectively, the output ends of the amplifying module and the phase detection module are connected with the input end of the data acquisition unit respectively, and the output end of the data acquisition unit is connected with the computer terminal. The technical scheme only realizes the measurement of the partial discharge, and the partial discharge environment is difficult to effectively reflect due to single function.

Disclosure of Invention

The utility model mainly solves the technical problem that the prior technical scheme has single function and is difficult to effectively reflect the partial discharge environment condition, and provides a partial discharge detection terminal for automatically collecting environmental data.

The technical problem of the utility model is mainly solved by the following technical scheme: the system comprises a data acquisition front end, a partial discharge detection terminal and a service data processing platform which are sequentially connected, wherein the data acquisition front end comprises a transient earth voltage sensor, an ultrasonic sensor, a ultrahigh frequency sensor and a temperature and humidity sensor. The multi-type data acquisition front end comprises multi-type detection sensors, transient earth voltage, ultrasonic waves, ultrahigh frequencies and temperature and humidity sensors for local discharge detection, and is used for acquiring various information obtained by field operation of equipment and detection, including ultrahigh frequency signals possibly released when the equipment is abnormal, ultrasonic signals and environment temperature and humidity data when the equipment is correspondingly abnormal, the operation state of the power equipment is analyzed by comprehensively detecting the number of the acquisition front end, data transmission between the acquisition data front end and the local discharge detection terminal is acquired, sensor monitoring data is uploaded to the local discharge detection terminal in a wireless transmission mode to be displayed, meanwhile, the local discharge detection terminal transmits the data to a service data processing platform and compares the data with historical data, the accuracy of the data is judged, if the data is not abnormal, the data is stored and displayed on the platform.

Preferably, the temperature and humidity sensor comprises a thermistor and a temperature sensitive resistor, and the thermistor and the temperature sensitive resistor are connected with the partial discharge detection terminal through a filtering amplification circuit and a microprocessor in sequence. Temperature and humidity data in the environment are collected through the thermistor and the temperature sensitive resistor respectively, and accurate temperature and humidity are obtained through combination of the filtering amplification circuit and the microprocessor.

Preferably, the partial discharge detection terminal comprises a terminal power supply module, and a data acquisition module, a data conversion module, a terminal display module and a terminal communication module which are respectively connected with the terminal power supply module. The data acquisition module is used for acquiring detection data of the temperature and humidity sensor and the partial discharge detection sensor and transmitting the data to the data conversion module; the data conversion module is used for realizing AD conversion and signal conditioning of data of each channel and displaying the data on an LED screen of the terminal display module.

Preferably, the service data processing platform comprises a platform power supply module, and a platform communication module, a data processing module, a data storage module and a platform display module which are respectively connected with the platform power supply module, wherein the platform communication module is in wireless connection with the terminal communication module. The collected temperature and humidity data and the local release data are uploaded to a service data processing platform according to a certain rule, the data processing module compares the collected data with historical data stored in a data storage module, whether the collected data are abnormal or not is judged, if the collected data are abnormal, an alarm prompt is sent, and if the collected data are not abnormal, the collected data are stored in the data storage module.

Preferably, the input end of the data acquisition module is respectively connected with the microprocessors of the transient earth voltage sensor, the ultrasonic sensor, the ultrahigh frequency sensor and the temperature and humidity sensor, and the output end of the data acquisition module is connected with the AD conversion module and the signal conditioning module in the data conversion module.

Preferably, the wireless connection mode includes Wifi, LoRa and Zigbee. And various wireless connection modes ensure stable connection in the data transmission process.

The utility model has the beneficial effects that: in the partial discharge detection of the power equipment, automatic acquisition and data communication are realized through the partial discharge detection terminal, accurate temperature and humidity data and partial discharge detection data can be acquired and sent to a service platform, data support and information reference are provided for field equipment detection environment, equipment partial discharge fault diagnosis, defect elimination and case filing, and upgrading optimization of a power system is realized.

Drawings

Fig. 1 is a schematic circuit diagram of the present invention.

In the figure, 1 data acquisition front end, 1.1 transient state ground voltage sensor, 1.2 ultrasonic sensor, 1.3 ultrahigh frequency sensor, 1.4 temperature and humidity sensor, 2 partial discharge detection terminal, 2.1 terminal power module, 2.2 data acquisition module, 2.3 data conversion module, 2.4 terminal display module, 2.5 terminal communication module, 3 confession clothes data processing platform, 3.1 platform power module, 3.2 platform communication module, 3.3 data processing module, 3.4 data storage module, 3.5 platform display module.

Detailed Description

The technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.

Example (b): the partial discharge detection terminal for automatically collecting environmental data of the embodiment is shown in fig. 1, and comprises a data collection front end 1, a partial discharge detection terminal 2 and a service data processing platform 3 which are connected in sequence, wherein the data collection front end 1 comprises a transient ground voltage sensor 1.1, an ultrasonic sensor 1.2, an ultrahigh frequency sensor 1.3 and a temperature and humidity sensor 1.4. The multi-type data acquisition front end comprises multi-type detection sensors, transient earth voltage, ultrasonic waves, ultrahigh frequencies and temperature and humidity sensors for local discharge detection, is used for acquiring various information obtained by field operation and detection of equipment, including ultrahigh frequency signals possibly released when the equipment is abnormal, ultrasonic signals and environment temperature and humidity data when the equipment is correspondingly abnormal, and analyzes the operation state of the power equipment by acquiring comprehensive detection numbers of the front end.

The temperature and humidity sensor 1.4 comprises a thermistor and a temperature sensitive resistor, and the thermistor and the temperature sensitive resistor are sequentially connected with the partial discharge detection terminal 2 through a filtering and amplifying circuit and a microprocessor. Temperature and humidity data in the environment are collected through the thermistor and the temperature sensitive resistor respectively, and accurate temperature and humidity are obtained through combination of the filtering amplification circuit and the microprocessor.

The partial discharge detection terminal 2 comprises a terminal power supply module 2.1, and a data acquisition module 2.2, a data conversion module 2.3, a terminal display module 2.4 and a terminal communication module 2.5 which are respectively connected with the terminal power supply module 2.1. The input end of the data acquisition module 2.2 is respectively connected with the microprocessor of the transient ground voltage sensor 1.1, the ultrasonic sensor 1.2, the ultrahigh frequency sensor 1.3 and the temperature and humidity sensor 1.4, and the output end of the data acquisition module 2.2 is connected with the AD conversion module and the signal conditioning module in the data conversion module 2.3. The data acquisition module is used for acquiring detection data of the temperature and humidity sensor and the partial discharge detection sensor and transmitting the data to the data conversion module; the data conversion module is used for realizing AD conversion and signal conditioning of data of each channel and displaying the data on an LED screen of the terminal display module.

The service data processing platform 3 comprises a platform power module 3.1 and a platform communication module 3.2 respectively connected with the platform power module 3.1, a data processing module 3.3, a data storage module 3.4 and a platform display module 3.5, collected temperature and humidity data and local playing data are uploaded to the service data processing platform according to a certain rule, the data processing module compares the collected data with historical data stored by the data storage module, whether the collected data are abnormal or not is judged, if the collected data are abnormal, an alarm prompt is sent, and if the collected data are abnormal, the collected data are stored in the data storage module. Platform communication module 3.2 and terminal communication module 2.5 wireless connection, the wireless connection mode includes Wifi, loRa and Zigbee. And various wireless connection modes ensure stable connection in the data transmission process.

When the system works, firstly, a plurality of types of data acquisition front ends comprise transient earth voltage, ultrasonic waves, ultrahigh frequencies and temperature and humidity sensors for local discharge detection, and a plurality of information obtained by field operation and detection of equipment, including ultrahigh frequency signals and ultrasonic signals possibly released when the equipment is abnormal and environment temperature and humidity data corresponding to the abnormal conditions, are acquired, and the data are comprehensively detected by the acquisition front ends. The data processing module compares the collected data with historical data stored by the data storage module, judges the accuracy of the data, and sends out an alarm prompt if the collected data are abnormal, and stores the collected data in the data storage module if the collected data are not abnormal. The method provides data support and information reference for field equipment detection environment, equipment partial discharge fault diagnosis, defect elimination and case archiving, and realizes upgrading optimization of the power system.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Although the terms data acquisition front-end, partial discharge detection terminal and service data processing platform are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims (6)

1. The utility model provides an automatic collection environmental data's office puts test terminal, its characterized in that, puts test terminal (2) and supplies to serve data processing platform (3) including consecutive data acquisition front end (1), office, data acquisition front end (1) includes transient state ground voltage sensor (1.1), ultrasonic sensor (1.2), superfrequency sensor (1.3) and temperature and humidity sensor (1.4).

2. The partial discharge detection terminal for automatically collecting environmental data according to claim 1, wherein the temperature and humidity sensor (1.4) comprises a thermistor and a temperature sensitive resistor, and the thermistor and the temperature sensitive resistor are connected with the partial discharge detection terminal (2) through a filtering and amplifying circuit and a microprocessor in sequence.

3. The partial discharge detection terminal for automatically collecting environmental data according to claim 1, wherein the partial discharge detection terminal (2) comprises a terminal power module (2.1), and a data collection module (2.2), a data conversion module (2.3), a terminal display module (2.4) and a terminal communication module (2.5) respectively connected to the terminal power module (2.1).

4. The partial discharge detection terminal for automatically collecting environmental data according to claim 3, wherein the service data processing platform (3) comprises a platform power supply module (3.1), and a platform communication module (3.2), a data processing module (3.3), a data storage module (3.4) and a platform display module (3.5) which are respectively connected with the platform power supply module (3.1), wherein the platform communication module (3.2) is wirelessly connected with the terminal communication module (2.5).

5. The partial discharge detection terminal for automatically acquiring environmental data according to claim 3, wherein an input end of the data acquisition module (2.2) is respectively connected to the microprocessors of the transient voltage sensor (1.1), the ultrasonic sensor (1.2), the ultrahigh frequency sensor (1.3) and the temperature and humidity sensor (1.4), and an output end of the data acquisition module (2.2) is connected to the AD conversion module and the signal conditioning module in the data conversion module (2.3).

6. The partial discharge detection terminal capable of automatically collecting environmental data according to claim 4, wherein the wireless connection mode comprises Wifi, LoRa and Zigbee.

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