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Capacitance Evaluation of Metallized Polypropylene …
Self-healing (SH) in metallized polypropylene film capacitors (MPPFCs) can lead to irreversible damage to electrode and dielectric structures, resulting in capacitance loss and significant stability degradation, especially …
Detection of Self-Healing Discharge in Metallized Film Capacitors …
Benefiting from self-healing features, metallized film capacitors (MFCs) are widely employed to compensate reactive power (VAR) and thus improve the performance of …
Experimental Investigation of Self-healing Properties of …
The self-healing performance of metalized film capacitors is studied by building a repeated charging and discharging setup and a self-healing signal testing setup. The charging and …
Theoretical and experimental studies on the self‐healing …
Self-healing in metallised polypropylene film capacitor (MPPFC) distinguishes itself from partial discharge in electrical insulation, which occurs in the range of several 10 −12 …
Self-Healing in Dielectric Capacitors: a Universal Method to ...
In the context of the dielectric breakdown, self-healing designates a range of chemical processes, which spontaneously rearrange the atoms in the soot channels to …
Self-healing of capacitors with metallized film technology ...
Capacitors made of metallized polypropylene films suffer partial discharges, called self-healing, due to weak electrical defects. Those defects are destroyed by an electrical …
Research on Self-Healing Discharge Detection Method of …
On this platform, the ultrasonic method and ultra high frequency (UHF) method were investigated so as to detect the self-healing discharge signals of operating MFCs. The differences of …
Study on Factors Influencing Self-healing Energy of
To decrease temperature rise in self-healing power capacitor and lay foundation for improvement of applied voltage and lifetime, the influence of elements orientation on the …
Self-Healing of Materials under High Electrical Stress
The design approach provides a platform to create multifunctional binders with tunable self-healing and electrochemical properties. Future research could attempt to exploit …
Self-Healing of Materials under High Electrical Stress
Most of the work on self-healing capacitors to date has considered metallized polymers, 14, 16, 50, 51, 52, ... could attempt to exploit the electrical and mechanical stress …
Self-healing of capacitors with metallized film technology ...
Metallized capacitors, under high DC voltage, suffer inhibited discharges named self-healing. Previous works have shown that the Joule effect due to the current pulse locally vaporized the …
Detection of Self-Healing Discharge in Metallized Film Capacitors …
self-healing performance test. Keywords: MFCs; self-healing discharge; performance test; ultrasound; ultrasonic features 1. Introduction Metallized film capacitors (MFCs) are widely …
Detection of Self-Healing Discharge in Metallized Film Capacitors …
electronics Article Detection of Self-Healing Discharge in Metallized Film Capacitors Using an Ultrasonic Method Yusheng Ma 1, Haitao Shen 2, Chunming Pei 3, Huanyu Zhang 1, …
Self-healing of capacitors with metallized film technology ...
Self-healing is the spontaneous extinction of a local electrical arc due to the destruction of the electrodes during the process. It occurs in capacitors made of metallized …
Self-healing in dielectric capacitors: a universal method to ...
Every micro-discharge results in the formation of a soot channel, which is empirically known to exhibit a semiconductor behavior. Because of its capability to conduct …
Research on the self‐healing failure characteristics and its …
There are no reliable measures for identifying self-healing failures in capacitors. Therefore, the high-voltage self-healing capacitor have not been widely adopted in power …
Study on Factors Influencing Self-healing Energy of ...
The self-healing characteristics of metalized film capacitors under pulsed discharge conditions have also been studied by some scholars: ... Influence of external factors …
Detection of Self-Healing Discharge in Metallized Film Capacitors …
Based on the experimental observations, a detection algorithm incorporated with the ultrasonic emission sensors, preamplifier, and high-speed A/D converter was developed to …
Lifetime Estimation of Metalized Film Capacitor Based on Self-healing ...
Metalized film capacitors (MFC) are widely applied in power system, military weapons and railway traffics, etc. The lifetime of MFC is closely related to the self-healing …