Results 1 to 10 of about 438,791 (295)
Non-Contact High Voltage Measurement in the Online Partial Discharge Monitoring System [PDF]
Energies, 2021 The article presents an innovative system for non-contact high voltage (HV) measurement, which extends the measurement capabilities of a portable partial discharges (PD) monitoring system intended for diagnostics of power transformers.
Krzysztof Walczak, Wojciech Sikorski
doaj +3 more sources
IET Generation, Transmission & DistributionThe coupling capacitance between the line and the transducer cannot be ignored when making non‐contact voltage measurements on low‐voltage three‐phase power lines.
Lina Liu +6 more
doaj +3 more sources
Non-contact measurement method for voltage phasor
电力工程技术, 2023 The synchronous phasor measurement technology offers data for dynamic security monitoring in power systems. The non-contact voltage sensing technology has the advantages of safety, convenience and low cost, which is helpful for massive distribution of ...
LI Jiaxian, LIU Hao, BI Tianshu
doaj +2 more sources
Research on Non-Contact Voltage Measurement Method Based on Near-End Electric Field Inversion
Energies, 2023 Aiming at the problems of complex equations, low accuracy, and the strict measurement point layout requirements of the existing electric field integration method, a non-contact measurement method based on the inversion voltage of the near electric field ...
Shangpeng Sun +6 more
doaj +2 more sources
Non-contact Voltage Measurement Technique for On-Line Monitoring of Transient Overvoltages
Proceedings of the Nordic Insulation Symposium, 2022 The electric power system is continuously growing in its size, complexity and required reliability. There is an increased risk due to transient overvoltages which can deteriorate the insulation for different power system components. There is a need for monitoring of transient voltages to better monitor the effects due to them on the insulation of the ...
Durga Pawan Mahidhar Gorla +2 more
openaire +2 more sources
A novel non‐contact voltage measurement based on distribution lines
IET Generation, Transmission & DistributionAbstract Currently, for distribution line voltage measurement, there is no effective and convenient dynamic calibration method of coupling capacitance for capacitive coupling‐based sensors. Therefore, a differential non‐contact voltage measurement method based on harmonic injection is proposed in this paper.
Jie Shen +6 more
openaire +2 more sources
Non-contact voltage measurement using electronically varying capacitance
Electronics Letters, 2010 A voltage measurement methodology is presented, based on the principle of a vibrating capacitance, but implemented electronically. A transconductor with time-varying gain synthesises the vibrating capacitance, the peak to peak charge current of which changes as different DC voltages are applied to the capacitively coupled input.
G. McKenzie, P. Record
openaire +2 more sources
Non-contact Voltage Measurement Based on Electric-Field Effect
Procedia Engineering, 2011 AbstractIn this paper, According to theoretical analysis of detection method of voltage, a new method of non-contact detection method of voltage is designed under any severe environmental conditions, for example, in coal mines. Being different from traditional detection method of voltage, electric-field state is detected using Field Effect Transistor ...
Wei, Shaoliang +3 more
openaire +2 more sources
Using the Spark Plug as a Sensor for Analyzing the State of the Combustion System [PDF]
SensorsThis article presents a method that uses a spark plug as a sensor to monitor an internal combustion engine. In addition, the voltage sensors measured the high voltage at the spark plugs using a non-contact method.
Matej Kučera +3 more
doaj +2 more sources
Non-Contact Adaptive Voltage Sensor Based on Electric Field Coupling Principle
Sensors, 2023 Non-contact voltage sensors based on the principle of electric field coupling have the advantages of simple loading and unloading, high construction safety, and the fact that they are not affected by line insulation.
Xiangyu Tan +5 more
doaj +1 more source