CN213240394U

CN213240394U - Transformer partial discharge on-site acquisition device

Info

Publication number: CN213240394U
Application number: CN202022274851.9U
Authority: CN
Inventors: 朱节军; 凌小燕
Original assignee: Suzhou Setone Automation Technology Co ltd
Current assignee: Suzhou Setone Automation Technology Co ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-05-18
Anticipated expiration: 2030-10-13

Abstract

The utility model discloses a transformer partial discharge on-site collection system, including the transformer body, be equipped with the oil drain valve on the transformer body, first ring flange on the oil drain valve passes through flange bolt and the second ring flange joint on the transformer oil valve formula UHF partial discharge sensor, the signal output interface on the transformer oil valve formula UHF partial discharge sensor passes through coaxial cable and the indoor data acquisition device electric connection of intelligent terminal, the backstage data server that main IED analysis data analysis result on the data acquisition device passed through IEC 61850's communication protocol and conveys the station control layer rack shows, the station control layer rack passes through I2 data communication protocol and goes up to transmission and transformation equipment state monitoring system. The utility model discloses a transformer oil valve formula UHF partial discharge sensor replaces traditional transformer partial discharge on-the-spot collection instrument, and simple to operate, information acquisition are convenient and monitor conveniently.

Description

Transformer partial discharge on-site acquisition device

Technical Field

The utility model belongs to the technical field of the transformer partial discharge, concretely relates to on-spot collection system of transformer partial discharge.

Background

In recent years, with the continuous development of economic construction and the improvement of the living standard of people, the requirement on the reliability of power supply is higher and higher, and the partial discharge detection of the power transformer, which is one of the main devices in the power system, is also more and more emphasized in the power industry. If the partial discharge phenomenon appears in the transformer, the transformer is likely to be damaged prematurely, the service life of the transformer is influenced, and meanwhile, the normal power supply of the area is also directly influenced by the partial discharge. Therefore, detecting partial discharge of the transformer is an important measure for ensuring safe and reliable operation of the equipment.

The transformer partial discharge field acquisition device in the prior art needs to be electrically connected with the acquisition equipment and a working circuit on a transformer body, is poor in safety for a test device or an operator, cannot be overhauled in a live mode, and is inconvenient to install and fix and inconvenient to operate and execute.

Therefore, the transformer partial discharge field acquisition device which adopts a transformer oil valve type UHF partial discharge sensor to replace a traditional transformer partial discharge field acquisition instrument, is convenient to install, acquire information and monitor and can be overhauled in an electrified way is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a transformer partial discharge on-the-spot collection system to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a transformer partial discharge field collection system, includes the transformer body, be equipped with the oil drain valve on the transformer body, the first ring flange on the oil drain valve passes through flange bolt and is connected with the second ring flange on the transformer oil valve formula UHF partial discharge sensor, signal output interface on the transformer oil valve formula UHF partial discharge sensor passes through coaxial cable and the cashier's office in a shop data collection system electric connection of intelligent terminal, main IED analysis data analysis result on the data collection system passes through IEC 61850's communication protocol and conveys the backstage data server of station control layer rack and show, station control layer rack passes through I2 data communication protocol and uploads to power transmission and transformation equipment state monitoring system.

Preferably, the transformer oil valve type UHF partial discharge sensor is PD-T02.

Preferably, the signal output interface is an N-type signal output interface.

Preferably, the coaxial cable is an RS485 communication cable.

The utility model discloses a technological effect and advantage: the transformer partial discharge field acquisition device has the advantages that the transformer oil valve type UHF partial discharge sensor is directly installed on an oil discharge valve of a transformer body on site, the signal output end and the grounding end of the transformer oil valve type UHF partial discharge sensor are equipotential, the partial discharge sensor is added when the transformer body is not required to be processed into a product, in addition, the transformer oil valve type UHF partial discharge sensor is not electrically connected with a working circuit on the transformer body, the transformer oil valve type UHF partial discharge sensor is safer and more reliable for a test device or an operator, can be overhauled in a live way and is convenient to operate, the transformer oil valve type UHF partial discharge sensor outputs signals to a data acquisition device in an intelligent terminal cabinet, after the signals are changed into digital signals, a main IED analyzes the data and transmits the results to a background data server for display through a communication protocol of 618IEC 50, and finally the data are transmitted to a state, the transformer partial discharge field acquisition is convenient, the monitoring is convenient, and the real-time detection can be realized.

Drawings

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

In the figure: 1. a transformer body; 2. an oil drain valve; 3. a first flange plate; 4. a flange bolt; 5. transformer oil valve type UHF partial discharge sensor; 6. a second flange plate; 7. a signal output interface; 8. a coaxial cable; 9. an intelligent terminal cabinet; 10. a station control layer cabinet; 11. power transmission and transformation equipment state monitoring system.

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.

The utility model provides a transformer partial discharge field collection device as shown in figure 1, including transformer body 1, be equipped with oil drain valve 2 on the transformer body 1, first ring flange 3 on the oil drain valve 2 passes through flange bolt 4 and is connected with second ring flange 6 flange on the transformer oil valve formula UHF partial discharge sensor 5 flange, signal output interface 7 on the transformer oil valve formula UHF partial discharge sensor 5 passes through coaxial cable 8 and is connected with the data acquisition device on the intelligent terminal cabinet 9 electrically, main IED analysis data analysis result on the data acquisition device passes through IEC 61850's communication protocol and transmits the backstage data server of station control layer rack 10 and shows, station control layer rack 10 passes through I2 data communication protocol and transmits to power transmission and transformation equipment state monitoring system 11, the model of transformer oil valve formula UHF partial discharge sensor 5 is PD-T02, the signal output interface 7 is an N-type signal output interface, and the coaxial cable 8 is an RS485 communication cable;

the transformer oil valve type UHF partial discharge sensor 5 is directly installed on the oil drain valve 2 of the transformer body 1 on site, the signal output end of the transformer oil valve type UHF partial discharge sensor 5 is equipotential with the grounding end, the partial discharge sensor is not required to be added when the transformer body 1 is processed into a product, in addition, the transformer oil valve type UHF partial discharge sensor 5 is not electrically connected with a working circuit on the transformer body 1, no matter the testing device or an operator is safer and more reliable, the transformer oil valve type UHF partial discharge sensor can be electrified for overhaul, the operation is convenient, the transformer oil valve type UHF partial discharge sensor 5 outputs signals to a data acquisition device in the intelligent terminal cabinet 9, after the signals are changed into digital signals, the data are analyzed by a main IED and the results are transmitted to a background data server for display through the communication protocol of IEC 50, and finally are transmitted to a state monitoring system of the power transmission, the transformer partial discharge field acquisition is convenient, the monitoring is convenient, and the real-time detection can be realized.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a transformer partial discharge on-spot collection system, includes transformer body (1), its characterized in that: the intelligent transformer oil-gas monitoring system is characterized in that an oil drain valve (2) is arranged on the transformer body (1), a first flange plate (3) on the oil drain valve (2) is in flange connection with a second flange plate (6) on a transformer oil valve type UHF partial discharge sensor (5) through a flange bolt (4), a signal output interface (7) on the transformer oil valve type UHF partial discharge sensor (5) is electrically connected with a data acquisition device on an intelligent terminal cabinet (9) through a coaxial cable (8), a main IED analysis data analysis result on the data acquisition device is transmitted to a background data server of a protocol station control layer cabinet (10) through IEC61850 for display, and the station control layer cabinet (10) is transmitted to a power transmission and transformation equipment state monitoring system (11) through an I2 data communication protocol.

2. The transformer partial discharge field acquisition device according to claim 1, characterized in that: the transformer oil valve type UHF partial discharge sensor (5) is PD-T02.

3. The transformer partial discharge field acquisition device according to claim 1, characterized in that: the signal output interface (7) is an N-type signal output interface.

4. The transformer partial discharge field acquisition device according to claim 1, characterized in that: the coaxial cable (8) is an RS485 communication cable.