scholarly journals Development of a Corona Discharge Ionizer Utilizing High-Voltage AC Power Supply Driven by PWM Inverter for Highly Efficient Electrostatic Elimination

2020 ◽  
Author(s):  
Katsuyuki Takahashi ◽  
Koichi Takaki ◽  
Isao Hiyoshi ◽  
Yosuke Enomoto ◽  
Shinichi Yamaguchi ◽  
...  
Keyword(s):  
Corona Discharge ◽  
High Voltage ◽  
Power Supply ◽  
Pwm Inverter ◽  
Highly Efficient ◽  
Ac Power

A Gliding Discharge in Open Air Sustained by High-Voltage Resonant AC Power Supply

2012 ◽  
Vol 40 (11) ◽  
pp. 2843-2849 ◽  
Author(s):  
Cheng Zhang ◽  
Tao Shao ◽  
Jiayu Xu ◽  
Hao Ma ◽  
Liwei Duan ◽  
...  
Keyword(s):  
High Voltage ◽  
Power Supply ◽  
Ac Power ◽  
Gliding Discharge

scholarly journals Development of small high-voltage AC power supply for a dielectric barrier discharge plasma actuator

2021 ◽  
Vol 92 (2) ◽  
pp. 024707
Author(s):  
Kento Suzuki ◽  
Atsushi Komuro ◽  
Shintaro Sato ◽  
Mahoro Sakurai ◽  
Kodai Mitsuhashi ◽  
...  
Keyword(s):  
Dielectric Barrier Discharge ◽  
High Voltage ◽  
Power Supply ◽  
Discharge Plasma ◽  
Barrier Discharge ◽  
Plasma Actuator ◽  
Dielectric Barrier Discharge Plasma ◽  
Dielectric Barrier ◽  
Ac Power ◽  
Barrier Discharge Plasma

Study on Selective Leakage Protection System of Mine High Voltage Grid Based on Harmonic Phase Comparison

2015 ◽  
Vol 9 (1) ◽  
pp. 253-262
Author(s):  
Liu Zhongfu ◽  
Zhang Junxing ◽  
Shi Lixin ◽  
Yang Yaning
Keyword(s):  
High Voltage ◽  
Power Supply ◽  
Power Supply System ◽  
Supply System ◽  
Neutral Point ◽  
Arc Suppression Coil ◽  
Zero Sequence ◽  
Harmonic Extraction ◽  
Power Direction ◽  
The Stability

As for the wide application of arc suppression coil to the grounding in neutral point of mine high voltage grid, grid leakage fault rules and harmonic characteristics of the neutral point grounding system through arc suppression coil are analyzed, the selective leakage protection program “zero-sequence voltage starts, fifth harmonics of grid zerosequence voltage and zero-sequence current are extracted for phase comparison” is proposed, and corresponding fifth harmonic extraction circuit and power direction discrimination circuit are designed. The experimental results show that the protective principle applies not only to the neutral point insulated power supply system, but also to the power supply system in which neutral point passes arc suppression coil, which can solve selective leakage protection problems under different neutral grounding ways, improving the reliability of selective leakage and guaranteeing the stability of the action value.

Síntesis sencilla de óxido de tungsteno(VI) a partir del filamento de un foco

2011 ◽  
Vol 19 (4) ◽  
pp. 341
Author(s):  
Joel Díaz Reyes ◽  
Aarón Pérez-Benítez ◽  
Valentín Dorantes
Keyword(s):  
Infrared Spectroscopy ◽  
High Temperatures ◽  
Power Supply ◽  
Light Bulb ◽  
Electrochromic Devices ◽  
Tungsten Filament ◽  
Tungsten Oxides ◽  
Ac Power

<span>Tungsten(VI) oxide can be easily synthesized starting from a standard light bulb. The reaction consists in the oxidation at high temperatures (T ≈ 2000 – 3000° C) of a tungsten filament in presence of air; conditions which can be easily achieved by connecting a broken light bulb (but with its intact filament) to an AC-power supply of 110 volts. The vapor of WO3 is condensed into a beaker in a quantity enough to be characterized by infrared spectroscopy. The experiment is very funny, inexpensive and allows to the teacher to link several topics in current chemistry and physics of the tungsten oxides, such as their nomenclature and technological applications (i.e. electrochromic devices, gasochromic sensors, superalloys or as it is used in home: As a “simple” emisor of light!).</span>

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