DOI: 10.1016/S0304-3886(01)00138-3 Corpus ID: 93224320; Self-healing of capacitors with metallized film technology:: experimental observations and theoretical model @article{Tortai2001SelfhealingOC, title={Self-healing of capacitors with metallized film technology:: experimental observations and theoretical model}, author={J-H Tortai and
The accumulation of the soot throughout a dielectric capacitor ultimately results in irreversible overall failure. We have developed a universal method for predicting the composition and evaluating the properties of the decomposition products obtained after the dielectric breakdown of a metalized film capacitor. This method applies to both
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 partially return their insulative function. We developed a universal method capable of rating new capacitor designs including electrode and polymer material and their proportions. We
Higher hydrogen fractions in dielectric polymers boost self-healing in electrical capacitors. Electrical capacitors are omnipresent in modern electronic devices, in which they swiftly
Self-healing capacitors are designed to automatically restore their functionality after experiencing electrical stress, such as overvoltage or short circuits. This self-repair capability is crucial in applications where component failure can lead to significant downtime, safety hazards, or financial losses.
A theory of self-healing (SH) in metallized film capacitors (MFCs) is introduced. The interruption of the filamentary breakdown (BD) current in the thin dielectric insulation occurs when the thermally driven increase of the series impedance in the electrode metallization destabilizes the BD plasma arc. The interruption process can be described as a switching process which is self-induced by
This study aims to develop a novel self-healing polymer tantalum electrolytic capacitor with low equivalent series resistance (ESR), high-frequency performance, and a
Capacitors made of metallized polypropylene films suffer partial discharges, called self-healing, due to weak electrical defects. Those defects are destroyed by an electrical
Polypropylene undergoes the most efficient self-healing thanks to containing a large molar fraction of hydrogen atoms. The results are addressed to the experts in electrical engineering and polymer fine-tuning. Electrical
J.H. Tortai, A. Denat, N. Bonifaci, Self-healing of capacitors with metallized film technology:: experimental observations and theoretical model. J. Electrostat. 53, 159–169 (2000) Google Scholar H. Li, M. Zhang, F. Lin, Study on theory and influence factors of self-healing in metallized film capacitors. Trans. China Electrotech. Soc. 27, 218–223+230 (2012) Google
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 partially return their...
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
Polypropylene undergoes the most efficient self-healing thanks to containing a large molar fraction of hydrogen atoms. The results are addressed to the experts in electrical engineering and polymer fine-tuning. Electrical capacitors are omnipresent in modern electronic devices, in which they swiftly release large portions of energy on demand.
This study aims to develop a novel self-healing polymer tantalum electrolytic capacitor with low equivalent series resistance (ESR), high-frequency performance, and a simple preparation method. The capacitor was designed based on a Metal/Insulator/Conductive Polymer/Metal structure, where a copper layer was electroplated onto the surface of
There are two different mechanisms for self-healing of metalized film capacitors: one is discharge self-healing; the other is electrochemical self-healing. The former occurs at higher voltage, so it is also referred to as high-voltage self-healing; because the latter also occurs at very low voltage, it is often referred to as low-voltage self-healing.
Capacitors exhibit exceptional power density, a vast operational temperature range, remarkable reliability, lightweight construction, and high efficiency, making them extensively utilized in the realm of energy storage. There exist two primary categories of energy storage capacitors: dielectric capacitors and supercapacitors. Dielectric capacitors encompass
Because of its capability to conduct electricity, the emerged soot channels harm the subsequent capacitor performance and decrease the amount of stored energy. The accumulation of the soot throughout a dielectric capacitor ultimately results in irreversible overall failure. We have developed a universal method for predicting the composition and
Self-healing, triple-network GPE boasts exceptional mechanical strength. Seamless all-in-one supercapacitor delivers high capacitance and interface property. KI-enabled supercapacitor shows high energy density, flexibility, and cold resistance.
Self-healing, triple-network GPE boasts exceptional mechanical strength. Seamless all-in-one supercapacitor delivers high capacitance and interface property. KI
Self-healing capacitors are designed to automatically restore their functionality after experiencing electrical stress, such as overvoltage or short circuits. This self-repair
Capacitors made of metallized polypropylene films suffer partial discharges, called self-healing, due to weak electrical defects. Those defects are destroyed by an electrical arc that extinguishes when enough metal of the electrodes is vapourized around this point. From experimental results, we have elaborated a model of the self-healing
Mechanism of breakdown in MnO2 and Even less is known about self-healing in chip polymer polymer tantalum capacitors have been suggested and self- tantalum capacitors (CPTCs) where MnO2 cathode is replaced healing processes discussed. 2 EXPERIMENT An example of voltage and PS current variations detected by an oscilloscope during a scintillation breakdown is
Higher hydrogen fractions in dielectric polymers boost self-healing in electrical capacitors. Electrical capacitors are omnipresent in modern electronic devices, in which they swiftly release large portions of energy on demand. The capacitors may suffer from arc discharges due to local Self-Healing Polymers for Electronics and Energy Devices.
Heywang H (1976) Physical and chemical processes in self-healing plastic capacitors. Colloid Polym Sci 254(2):139–147. Article Google Scholar Wang Z, Yan F, Xu M et al (2017) Influence of external factors on self-healing capacitor temperature field distribution and its validation. IEEE Trans Plasma Sci 45(7):1680–1688
The accumulation of the soot throughout a dielectric capacitor ultimately results in irreversible overall failure. We have developed a universal method for predicting the composition and
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 partially return their insulative function. We developed a universal method capable of rating new
The self-healing parallel capacitor is mainly used for reactive power compensation in power grid. lt can effectively improve power factor, reduce reactive power loss, improve voltage quality and save electric energy. 2 Main Technical Parameters 2.1 Environmental Temperature: -25℃-50℃ 2.2 Rated volta e: 250VAC, 400VAC, 450VAC,525VA, 690VAC;
A theory of self-healing (SH) in metallized film capacitors (MFCs) is introduced. The interruption of the filamentary breakdown (BD) current in the thin dielectric insulation occurs when the thermally driven increase of the series impedance in the electrode metallization destabilizes the BD plasma arc. The interruption process can be described as a switching
model designed to achieve the self-healing aims of the smart grid system. The fourth section presents the simulation results of the proposed adaptive electronic relay under three different
Because of its capability to conduct electricity, the emerged soot channels harm the subsequent capacitor performance and decrease the amount of stored energy. The
At this point, the polymer absorbed oxygen and generated insulating materials, which isolated the defective portion from the remainder of the capacitor. Despite the loss of some effective capacitance, the self-healing process had a negligible impact on the overall performance, while substantially reducing the LC [40, 41].
By employing an electroplating voltage of 2 V, a current density of 2 A/dm 2, and a plating time of 5 min, the ESR of the capacitor was minimized to 27 mΩ. Moreover, the Dissipation Factor (DF) of the capacitor was also enhanced.
Moreover, the Dissipation Factor (DF) of the capacitor was also enhanced. The utilization of a conductive polymer as the cathode layer provided the capacitors with self-healing characteristics that significantly decreased the leakage current (LC) in the capacitor.
The results demonstrated that incorporating a copper metal layer into the structure of the capacitors significantly reduced the ESR of TECs. By employing an electroplating voltage of 2 V, a current density of 2 A/dm 2, and a plating time of 5 min, the ESR of the capacitor was minimized to 27 mΩ.
In the event of a dielectric defect, a localized high-intensity current was generated between the cathode and anode, leading to localized Joule heating. At this point, the polymer absorbed oxygen and generated insulating materials, which isolated the defective portion from the remainder of the capacitor.
The effect of electroplating conditions on the electrical properties of the tantalum electrolytic capacitors (TECs) was comprehensively studied. The results demonstrated that incorporating a copper metal layer into the structure of the capacitors significantly reduced the ESR of TECs.
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