Filters
Synthetic and natural ester-based nanofluids with fullerene and magnetite nanoparticles – An experimental AC breakdown voltage study
Ester-based electrical insulating liquids constitute an attractive alternative to widely used mineral oils, especially due to their ecological benefits. In this study, we present an experimental comparison of AC breakdown voltage (BDV) in both natura...
Nano-materials (production and properties)
- 2022 •
- Jimp •
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Comparative study of dielectric properties of mineral oil, synthetic ester and natural ester
The current research of insulating oils for high-voltage applications focuses mainly on biodegradable oils that are in line with sustainable development. Mineral oils may in the future be replaced by more environmentally friendly materials with simil...
Electrical and electronic engineering
- 2022 •
- D
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D - Stať ve sborníku
Vertical Dosimetric Measurement of Electric Discharge Induced at Lightning Impulse Voltage Generator
This paper deals with the measurement of ionising radiation emitted in the vertical field of electric discharge generated between the tip and the grounded plate electrode. The generator set-up was for 400 consecutive negative discharges with voltage ...
Meteorology and atmospheric sciences
- 2022 •
- Jimp •
- Link
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Advanced Design of Heat Accumulation Responsive Demand Control for Energy Management of Prosumers
The paper is focused on advanced approaches to resistive adaptive demand response control into heat accumulation, implemented in installations with a small-scale power generating unit in order to provide real equilibrium between electricity generatio...
Electrical and electronic engineering
- 2021 •
- D •
- Link
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Evaluation of Filtered Spark Gap on the Lightning Protection of Distribution Transformers: Experimental and Simulation Study
Protection of transformers, as one of the most expensive equipment in the power system, against lightning overvoltage impulses is a vital task. This paper, for the first time so far, investigates the effects of a filtered spark gap on the protection ...
Energy and fuels
- 2020 •
- Jimp •
- Link
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Jimp - Článek v periodiku v databázi Web of Science
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Simulation of Impulse Generator Followed by Practical Verification
Paper focuses on simulating a real impulse generator in LTspice in such a way that it is close to real conditions. There is a description of comparison of measured and simulated important monitored values. These are the front time T1 and the time to ...
Electrical and electronic engineering
- 2020 •
- D
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D - Stať ve sborníku
Measurements of radiation induced by a spark discharge under laboratory conditions
Terrestrial gamma and neutron flashes can result in considerable radiation exposure of aircraft crew and passengers in their close vicinity. Lightning impulse voltage generators imitate selected stages of natural lightning processes and can serve as ...
Nuclear related engineering; (nuclear physics to be 1.3);
- 2020 •
- Jimp •
- Link
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Jimp - Článek v periodiku v databázi Web of Science
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Optimal Adjustment of Double Exponential Model Parameters to Reproduce the Laboratory Volt-Time Curve of Lightning Impulse
This paper develops an optimization model to find the optimal values for the parameters of the double-exponential function. This function can be used to reproduce the volt-time curves of the standard and nonstandard applied impulse voltages in a soft...
Nuclear physics
- 2020 •
- D •
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Fluctuations of focused electron beam in a conventional SEM
Noise diagnostics was performed on a tungsten hairpin cathode that was used in conventional scanning electron microscope (SEM) which operates in a high vacuum. The focused beam was firstly measured and its power spectrum obtained in order to characte...
Particles and field physics
- 2019 •
- Jimp •
- Link
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Jimp - Článek v periodiku v databázi Web of Science
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Precise DC Source 1.2 kV
Precise Regulated DC Source 1.2 kV, maximal ripple voltage 60 mVpp at maximum output current 5 mA.
Electrical and electronic engineering
- 2019 •
- Gfunk
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Gfunk - Funkční vzorek
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