scholarly journals Power supply for on-line monitoring device of power lines based on double-half ring core

2021 ◽  
Vol 336 ◽  
pp. 05023
Author(s):  
Kaijin Xue ◽  
Jieyu Liu ◽  
Naidi Kang ◽  
Yujia Zhao ◽  
Yan Zhao ◽  
...  
Keyword(s):  
Transmission Line ◽  
Power Supply ◽  
Electronic Equipment ◽  
Iron Core ◽  
Stable Operation ◽  
Monitoring Device ◽  
On Line ◽  
Reliable Power Supply ◽  
Energy Absorbing ◽  
Monitoring Devices

In order to solve the problem of insufficient energy supply of the on-line monitoring device of the transmission line, a sensor energy acquisition scheme directly installed on the transmission line is proposed. In the current power supply, induction power supply is a kind of energy extraction method with better practical applicability. Since the monitoring devices and electronic equipment on the transmission line are often in a strong magnetic field and high voltage environment, designing a stable and reliable power supply is the guarantee for the stable operation of the monitoring devices and electronic equipment. This paper presents a structure of energy-absorbing iron core with two semi-circular magnetic cores, and studies the magnetic saturation problem in the inductive power supply and the design of the DC output circuit.

Application of Fiber Bragg Grating Device in Icing Monitoring System of Transmission Lines

2014 ◽  
Vol 543-547 ◽  
pp. 1030-1034 ◽  
Author(s):  
Feng Lian Liu ◽  
Li Rui Guo ◽  
Yuan Shi Deng ◽  
Chi Wu ◽  
Jiang Ling Li ◽  
...  
Keyword(s):  
Transmission Line ◽  
Fiber Bragg Grating ◽  
Transmission Lines ◽  
Electromagnetic Interference ◽  
Bragg Grating ◽  
Stable Operation ◽  
Monitoring Device ◽  
Active Sensors ◽  
Bragg Grating Sensor ◽  
Monitoring Devices

Ice accretion has been a huge threat for the stable operation of transmission line. Icing monitoring devices used presently are active sensors with low working stability. Signals are transmitted in the electrical form, which are easily affected by the electromagnetic interference. In this paper, an online icing monitoring device of transmission line based on fiber bragg grating (FBG) sensor is designed, and is operated as a pilot unit on the 44# tower of 110kV Zhenzou line. Experimental results show that the online icing monitoring device operates stably, and the designed fiber bragg grating sensor has high linearity, good sensitivity and high accuracy.

scholarly journals Inductive Power Supply for On-line Monitoring Device

2018 ◽  
Vol 1087 ◽  
pp. 062005
Author(s):  
Zi Long Xiao ◽  
Yi Lin Jin ◽  
Xu Dong Song ◽  
Xiao Jun Chen ◽  
Xiao Ping Zhang
Keyword(s):  
Power Supply ◽  
Monitoring Device ◽  
On Line ◽  
Inductive Power

Design Solar Power Supply System in Remote Automatic Monitoring Device on Subgrade Settlement

2013 ◽  
Vol 303-306 ◽  
pp. 1883-1887
Author(s):  
Xin Xu ◽  
Qi Bo Feng ◽  
Shi Qian Chen
Keyword(s):  
Power Supply ◽  
Output Voltage ◽  
High Stability ◽  
Power Supply System ◽  
Solar Power ◽  
Automatic Monitoring ◽  
Supply System ◽  
Monitoring Device ◽  
Detailed Design ◽  
Monitoring Devices

The solar power supply system was studied for remote automatic monitoring device on subgrade settlement. Gave the detailed design formula and circuit principle diagram, the independent solar power supply system was designed that is stable, reliable and can get a variety of output voltage. It was successfully applied to outdoor monitoring devices of subgrade settlement, the results show the solar power supply system has a high stability and efficiency, and absolutely meet the needs of project applications.

Design of Induced Power Supply System for On-Line Monitoring Device of Power Cable

2014 ◽  
Vol 981 ◽  
pp. 585-588
Author(s):  
Xin Lao Wei ◽  
Bo Zhu ◽  
Bing Pang ◽  
Tong Liu ◽  
Song Wang ◽  
...  
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Rogowski Coil ◽  
Supply System ◽  
Power Cable ◽  
Super Capacitor ◽  
On Line ◽  
Li Battery ◽  
Monitoring Devices ◽  
The Magnetic Field

The paper described a sort of power supply system featured as a hybrid of Rogowski coil, super capacitor and Li-battery. The proposed power supply obtains energy from the magnetic field induced by installing a Rocowski coil on the cable. The design of the power supply system is introduced in the paper. The results of test show that the power supply system can provide a stable ±12V, +5V voltage to the on-line monitoring devices.

Research and Design on On-Line Contact of High Voltage Switch Circuit Breaker Temperature Rise Monitoring Device

2015 ◽  
Vol 1092-1093 ◽  
pp. 310-315 ◽  
Author(s):  
Jin Bo Zhang ◽  
Bin Chen ◽  
Jia Jia Song ◽  
Zheng Yong Xiong ◽  
Jing Feng Liu
Keyword(s):  
High Voltage ◽  
Power Supply ◽  
Circuit Breaker ◽  
Temperature Monitoring ◽  
Monitoring Device ◽  
Saturation Power ◽  
On Line ◽  
External Power ◽  
Continuous Power ◽  
Switch Circuit

In order to make on-line monitoring on the temperature of high voltage switch circuit breakerand find outthermal fault in time. This paper puts forward a new method with radio frequency and magnetic saturation power supply technology to make on-line monitoring on the temperature of high voltage switch circuit breaker, it designs the high voltage switch circuit breaker contact temperature online monitoring device. The device mainly includes monolithic temperature collector and data receiver, they transmit data wirelessly, and this makes high temperature monitoring terminal and the data receiving terminal completely electrical isolated. Integrated temperature collector doesn’t need external power supply, it uses small CT saturation technology for continuous power. The experiment shows that the temperature error is ±2°C, it can meet online temperature monitoring requirements of high voltage switch circuit breaker contact.

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