使用电磁能量传输和无线传感器监控变压器
Shuxing Xu1, Yurui Shang1, Zhenming Li2
1Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China.
Sensors (Basel, Switzerland)
|March 13, 2024
概括
一种新的无线传感装置 (ETWSD) 提供了对变压器布赫霍尔兹继电器的无接触监控,减少了错误报警并提高了安全性. 该系统可快速实时评估关键参数,增强变压器保护.
科学领域:
- 电气工程 电气工程
- 材料科学 材料科学 材料科学
- 传感器技术 传感器技术
背景情况:
- 变压器布赫霍尔兹继电器对于稳定的运行至关重要,依靠轻气体保护.
- 光气保护中的错误报警需要在现场采样,造成风险并延迟诊断.
- 在故障排除过程中变压器状况恶化对人员构成安全隐患.
研究的目的:
- 开发一种用于无接触,实时监控变压器布赫霍尔兹继电器参数的新型系统.
- 解决与传统故障排除方法相关的错误报警和安全风险的挑战.
- 为了能够迅速和准确地评估变压器轻气保护故障.
主要方法:
- 引入近场,薄切片变压器监控系统,使用电磁能传输和无线传感装置 (ETWSD).
- ETWSD由外部无线能源供电,使用近场通信来获取数据.
- 开发一个基于Android的应用程序,用于实时数据显示,值判断,报警和存储.
主要成果:
- 在变压器继电器的气体收集室上进行了成功的实地测试,证明了ETWSD的能力.
- 实时监测甲气体度 (大约. 1000 ppm),泄漏电压 (0-100 V) 和温度 (高达 90 °C) 在警告范围内.
- 该系统可同时,无接触,快速监测多个关键指标.
结论:
- 开发的ETWSD有效地监测了变压器轻气体保护的关键参数.
- 该系统帮助现场人员及时准确地评估变压器保护故障.
- 这项技术在无接触和实时变压器监控方面取得了重大进展.
更多相关视频
07:43A Simple Approach to Perform TEER Measurements Using a Self-Made Volt-Amperemeter with Programmable Output Frequency
Published on: October 5, 2019
21.9K
08:43Long-term Continuous EEG Monitoring in Small Rodent Models of Human Disease Using the Epoch Wireless Transmitter System
Published on: July 21, 2015
25.6K
相关概念视频
01:21Energy Losses in Transformers
869
In an ideal transformer, it is assumed that there are no energy losses, and, hence, all the power at the primary winding is transferred to the secondary winding. However, in reality, the transformers always have some energy losses, and, hence, the output power obtained at the secondary winding is less than the input power at the primary winding due to energy losses.
There are four main reasons for energy losses in transformers.
The first cause can be the high resistance of the...
There are four main reasons for energy losses in transformers.
The first cause can be the high resistance of the...
869
01:26Transformers
1.1K
A device that transforms voltages from one value to another using induction is called a transformer. A transformer consists of two separate coils, or windings, wrapped around the same soft iron core. However, they are electrically insulated from each other.
The iron core has a substantial relative permeability. Therefore, the magnetic field lines generated due to the current in one winding are almost entirely confined within the core, such that the same magnetic flux permeates each turn of both...
The iron core has a substantial relative permeability. Therefore, the magnetic field lines generated due to the current in one winding are almost entirely confined within the core, such that the same magnetic flux permeates each turn of both...
1.1K
01:27Transformers in Distribution System
102
Transformers in distribution systems can be broadly categorized into distribution substation transformers and other distribution transformers. They are crucial for stepping down high transmission voltages to levels suitable for distribution and end-user applications.
Distribution substation transformers come in various ratings and typically use mineral oil for insulation and cooling. To prevent moisture and air from entering the oil, some transformers use an inert gas like nitrogen to fill the...
Distribution substation transformers come in various ratings and typically use mineral oil for insulation and cooling. To prevent moisture and air from entering the oil, some transformers use an inert gas like nitrogen to fill the...
102
01:10Generating Electromagnetic Radiations
2.9K
The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in...
2.9K
01:16Types Of Transformers
974
Transformers can provide desired voltages to a circuit by modifying the number of turns in the secondary windings.
If the ratio of the number of turns in the secondary winding to that of the primary winding is greater than one, then the transformer is said to be a step-up transformer. In a step-up transformer, the voltage at the secondary winding is greater than the voltage applied at the primary winding.
However, if this ratio is less than one, the transformer is said to be a step-down...
If the ratio of the number of turns in the secondary winding to that of the primary winding is greater than one, then the transformer is said to be a step-up transformer. In a step-up transformer, the voltage at the secondary winding is greater than the voltage applied at the primary winding.
However, if this ratio is less than one, the transformer is said to be a step-down...
974
01:23Instrument Transformers
84
Instrument transformers, comprising voltage transformers (VTs) and current transformers (CTs), play crucial roles in power substations by providing isolated replicas of current or voltage for measurement and protection purposes. Voltage transformers reduce the primary voltage to levels suitable for relay operation and measurement, while current transformers scale down the primary current. The primary winding of a current transformer often consists of a single turn, achieved by threading the...
84