scholarly journals Infrared Temperature Measurement Sensors of Overhead Power Conductors

Sensors ◽  
2020 ◽  
Vol 20 (24) ◽  
pp. 7126
Author(s):  
Pablo Castro ◽  
Ramón Lecuna ◽  
Mario Manana ◽  
Maria Jose Martin ◽  
Dolores del Campo
Keyword(s):  
Temperature Measurement ◽  
Electromagnetic Fields ◽  
Smart Grids ◽  
Temperature Sensors ◽  
Contact Temperature ◽  
Power Lines ◽  
New Methods ◽  
Infrared Temperature Measurement ◽  
Conductor Temperature ◽  
Load Conditions

Efficiency in power lines operation is becoming more crucial as the electrification increases and more renewable energies are connected into the grid. New methods and sensors are being added to create smart grids to face these challenges and conductor temperature sensors are one of them. Contact temperature sensors have several problems regarding safety and electronic damage due to the electromagnetic fields induced on the conductors. The goal of this paper is to describe an infrared temperature measurement sensor and to compare contact and non-contact temperature measurements to estimate the temperature of power lines. Measurements were done for almost a year, storing around 150,000 measures of contact and infrared thermometers for many different weather and load conditions. The results conclude that the infrared system can be successfully used to control the temperature of the overhead conductor within a range of less than 4 ∘C difference with respect to contact temperature methods for the 88% of the samples and less than 6 ∘C for the 99%.

scholarly journals Simulation of Electromagnetic Fields Generated by Overhead Power Lines and Railroad Traction Networks

2021 ◽  
pp. 70-88
Author(s):  
N.V. Buyakova ◽  
V.P. Zakaryukin ◽  
A.V. Kryukov ◽  
D.A. Seredkin
Keyword(s):  
Power Systems ◽  
Electric Power ◽  
Electromagnetic Fields ◽  
Smart Grids ◽  
Negative Impact ◽  
Power Industry ◽  
Electric Power System ◽  
Power Lines ◽  
Operating Parameters ◽  
Overhead Power Lines

The establishment of smart grids requires special attention to the safety of power industry facilities and the reduction in their negative impact on personnel and the environment. A significant factor of such an impact is the considerable intensities of electromagnetic field (EMF) generated by such facilities. In the context of power industry digitalization, the development of methods and tools for EMF digital simulation is needed to ensure the electromagnetic safety of the service personnel. Computer models designed to adequately determine the EMF generated by overhead power lines (OPL) can be implemented based on the methods and tools created to determine operating parameters of electric power systems in phase coordinates developed at Irkutsk State Transport University. The technique of electromagnetic safety analysis is implemented based on the proposed approach and has the following features: a systems approach, which is the possibility of simulating electromagnetic fields in terms of properties and characteristics of a complex electric power system; versatility, which allows simulating power lines and traction networks of various designs; appropriateness to the environment achieved by considering the profile of the underlying surface, underground utilities, and artificial structures of rail transport, such as galleries, bridges, and tunnels; comprehensiveness, which is provided by combining the computation of operating parameters and the determination of EMF intensities. The paper describes methods and algorithms developed to determine the intensities of electromagnetic fields generated by multi-conductor power lines at fundamental and higher harmonics frequencies. A technique for the EMF determination at the points of OPL orthogonal crossing is also presented.

Non-contact temperature measurement method for dynamic rating of overhead power lines.

2020 ◽  
Vol 185 ◽  
pp. 106392 ◽  
Author(s):  
Ramón Lecuna ◽  
Pablo Castro ◽  
Mario Manana ◽  
Alberto Laso ◽  
Rodrigo Domingo ◽  
...  
Keyword(s):  
Temperature Measurement ◽  
Measurement Method ◽  
Contact Temperature ◽  
Power Lines ◽  
Overhead Power Lines

scholarly journals CEA’s Optical Pyrometry Technique for Non-Contact Temperature Measurement in High Temperature Surroundings

2018 ◽  
Vol 170 ◽  
pp. 08004
Author(s):  
B. Bouvry ◽  
G. Cheymol ◽  
C. Gallou ◽  
H. Maskrot ◽  
C. Destouches ◽  
...  
Keyword(s):  
High Temperature ◽  
Temperature Measurement ◽  
Contact Temperature ◽  
Optical Pyrometry

Methods of temperature measurement in microwave heating technologies

2021 ◽  
pp. 20-28
Author(s):  
Boris A. Lapshinov
Keyword(s):  
Temperature Measurement ◽  
Microwave Heating ◽  
Microwave Radiation ◽  
Electromagnetic Fields ◽  
Optical Measurement ◽  
Measurement Methods ◽  
Heating Systems ◽  
Measurement Systems ◽  
Processed Material ◽  
Spectral Pyrometry

In industrial technological processes associated with the heating of the processed material by microwave radiation, it is necessary to measure the temperatures of objects. Methods for measuring temperatures in the fields of technology using microwave heating systems are considered. The main possibilities, disadvantages and limitations of the used contact and non-contact (optical) measurement methods are determined. The requirements for temperature measurement systems under conditions of exposure to strong electromagnetic fields are listed. The possibilities of the spectral pyrometry method are especially noted.

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