Open AccessMeasuring Method and Device for Mechanical Characteristics of AC Contactors
Author(s) -
Ли Бин,
Liang Wang,
Jian Song,
K. Chang Su,
Yang Liu,
Shuxin Liu
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1486/7/072064
Subject(s) - contactor , acceleration , signal (programming language) , computer science , vibration , voltage , reliability (semiconductor) , filter (signal processing) , power (physics) , automotive engineering , electrical engineering , engineering , acoustics , physics , classical mechanics , quantum mechanics , programming language
AC contactors are widely used in various low voltage electrical control circuits. The operation status of AC contactor will affect the safety and reliability of power system operation, so it is important to accurately evaluate the operation status of AC contactor. An outstanding feature of electrical intelligence is that it can be monitored on-line, which is of great significance for evaluating the performance degradation of AC contactors. Accurate acquisition of physical quantities such as speed and acceleration of AC contactor is difficult at present. Traditional method installs vibration sensor in linear motion of AC contactor. The vibration of contact system of AC contactor will inevitably produce large interference signal, which is not easy to filter and affects the acquisition and processing of useful signal. Therefore, it is necessary to have stable devices and more suitable algorithms to measure and calculate these physical quantities.