A Simple LED Lamp with a Stable Luminous Flux Supplied from 230V AC and Free rom Inrush Current

Published by Jacek CHĘCIŃSKI, Zdzisław FILUS, Silesian University of Technology, Department of Electronics, Electrical Engineering and Microelectronics Abstract. Modern replacements for 230V AC lamps with the bases E14 and E27 are mainly based on LEDs. Today the efforts of their designers are concentrated, in particular, on elimination of detrimental effects associated with the flicker characteristicContinue reading “A Simple LED Lamp with a Stable Luminous Flux Supplied from 230V AC and Free rom Inrush Current”

Inrush Current Impact Limitation in Smart Building Applications

Published by 1. Mariusz STOSUR1, 2. Kacper SOWA2, 3. Piotr ORAMUS1, 4. Adam RUSZCZYK2, 5. Pawel ALOSZKO3,ABB E-mobility, Krakow, Poland (1), ABB Technology Center, Krakow, Poland (2), ABB Corporate Technology Center, Krakow, Poland (3)ORCID. 1. 0000-0002-1522-3405, 2. 0000-0001-8246-2337, 3. 0000-0002-4810-3936, 4. 0000-0001-7477-8139, 5. 0000-0002-1668-6292 Abstract: This paper presents a hybrid switches based on semiconductors andContinue reading “Inrush Current Impact Limitation in Smart Building Applications”

The Influence of Power Supply Network Inductance on the HTS Transformer Inrush Current

Published by Grzegorz KOMARZYNIEC1, The Lublin University of Technology, Institute of Electrical Engineering and Electrotechnologies (1) Abstract. The HTS transformer inrush current may lead to thermal damage its windings made of HTS 2G tapes. The parameters affecting the value and duration of the inrush current are: the impedance of the transformer windings and the impedanceContinue reading “The Influence of Power Supply Network Inductance on the HTS Transformer Inrush Current”

Example of Inrush Current Elimination After Connection of High Input DC Voltage

Published by Jakub KELLNER1, Michal PRAZENICA2, Department of Mechatroncs and Electronics, Faculty of Electrical and Information Technology, University of Zilina, Slovakia Abstract. This article deals with the problem of elimination inrush currents. The document proposes an active method for limiting the inrush currents during circuit switching when high inrush currents occur. The proposed system limitsContinue reading “Example of Inrush Current Elimination After Connection of High Input DC Voltage”

Thermal Problems in HTS Transformer due to Inrush Current

Published by Grzegorz KOMARZYNIEC1, Tadeusz JANOWSKI2, Grzegorz WOJTASIEWICZ2, Michał MAJKA2, Politechnika Lubelska, Instytut Podstaw Elektrotechniki i Elektrotechnologii (1), Instytut Elektrotechniki w Warszawie (2) Abstract. With switching on a superconducting transformer to the energetic network, a unidirectional current of high amplitude may appear. Maximal values of the current impulses following shortly one after the other mayContinue reading “Thermal Problems in HTS Transformer due to Inrush Current”