Search results for: OVERCURRENT PROTECTION

• Gate Driver with Overcurrent Protection Circuit for GaN Transistors

  Publication

  • P. Derkacz
  • P. Musznicki

  - Przegląd Elektrotechniczny - Year 2019

  The improvement of the gate driver for GaN transistor is presented in this paper. The proposed topology contains the overcurrent protectionwith the two-stage turning off and independent control of turn on and off time of the GaN transistor. The operation of driver and its application in thehalf-bridge converter are described using both simulation and prototype measurements. The overcurrent protection was tested in Double Pulse...

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• Thermal and Electrodynamic Risk of Residual Current Devices in the Case of Back-Up Protection by Overcurrent Circuit Breakers

  Publication

  • S. Czapp
  • D. Kowalak
  • K. Borowski

  - Acta Energetica - Year 2014

  Residual current operated circuit breakers without integral overcurrent protection should be back-up protected. As back-up protection devices, overcurrent circuit breakers are used. The maximum let-through energy and let-through current of the overcurrent devices were evaluated under laboratory conditions. The thermal and electrodynamic risk of residual current devices was analyzed.

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• Effect of the let-through energy of overcurrent protective devices on the temperature of conductors during short-circuits

  Publication

  • S. Czapp
  • D. Kowalak

  - Przegląd Elektrotechniczny - Year 2021

  The scope of the verification of low-voltage systems covers the earth fault loop impedance measurement. This measurement is usually performed with the use of low-value current meters, which force a current many times lower than the one occurring during a real short-circuit. Therefore, the international standard recommends consideration of the increase of resistance of conductors with the increase of temperature, which may occur...

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• Comparison of Overcurrent Responses of 2G HTS Tapes

  Publication

  • D. Czerwinski
  • L. Jaroszynski
  • M. Majka
  • J. Kozak
  • B. Charmas

  - IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY - Year 2016

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• JOURNAL OF CLEANER PRODUCTION

  Journals

  ISSN: 0959-6526 , eISSN: 1879-1786

• Protective Zone of an Industrial Plant as a Tool for Environmental Protection

  Publication

  • M. Przewocka
  • A. Greinert
  • J. Kostecki
  • M. Skiba
  • A. Bazan-Krzywoszańska

  - Environment and Ecology Research - Year 2015

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• Environment Protection Engineering

  Journals

  ISSN: 0324-8828 , eISSN: 2450-260X

• RADIATION PROTECTION DOSIMETRY

  Journals

  ISSN: 0144-8420 , eISSN: 1742-3406

• Modernized cathodic protection system for legs of the production rig – Evaluation during ten years of service

  Publication

  • K. Żakowski
  • P. Igliński
  • J. Orlikowski
  • K. Darowicki
  • K. Domańska

  - OCEAN ENGINEERING - Year 2020

  The modernization of cathodic protection system of the Baltic Beta platform legs is described. It was that the sacrificial anodes cone-shaped groups were to be placed on the seabed at a depth of 80 m. The measurements results of cathodic protection effectiveness during its ten-years operation are presented. The effectiveness was assessed based on the potential value along the entire length of the legs from the sea surface to the...

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• CROP PROTECTION

  Journals

  ISSN: 0261-2194 , eISSN: 1873-6904

• Corrosion and Protection

  Journals

  ISSN: 1005-748X

• Materials Protection

  Journals

  ISSN: 0351-9465 , eISSN: 2466-2585

• PROTECTION OF METALS

  Journals

  ISSN: 0033-1732

• PROCESS SAFETY AND ENVIRONMENTAL PROTECTION

  Journals

  ISSN: 0957-5820 , eISSN: 1744-3598

• Projections

  Journals

  ISSN: 0762-1000

• Results of acoustic emission tests of corrosion protection degree of ship steel tanks covered by means of protective coatings (Phase I)

  Publication

  • H. Bugłacki
  • P. Eichert

  - Polish Maritime Research - Year 2008

  This paper presents methods and results of the 1st series of tests of acoustic emission (AE) signals, aimed at assessing degree of corrosion protection of a tank made of hull structural steel, protected by means of a protective coating combined from polyurethane layer and concrete filler. The tests were carried outin compliance with a method specially elaborated for application to the work in question. In the method were used requirements...

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• Elastic protection coasting for ship tanks to increase environment protection level

  Publication

  • J. Kozak

  - Polish Maritime Research - Year 2008

  W opracowaniu przedstawiono ideę nowego rozwiązania dla podniesienia bezpieczeństwa zbiorników paliwowych statków, polegającą na wprowadzeniu do zbiornika drugiej - elastycznej bariery ochronnej opartej na warstwie wypełniacza.

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• Progress in Plant Protection

  Journals

  ISSN: 1427-4337 , eISSN: 2084-4883

• Journal of Adult Protection

  Journals

  ISSN: 1466-8203 , eISSN: 2042-8669

• Journal of Crop Protection

  Journals

  ISSN: 2251-9041

• Food Protection Trends

  Journals

  ISSN: 1541-9576

• Radiation Medicine and Protection

  Journals

  eISSN: 2666-5557

• JOURNAL OF FOOD PROTECTION

  Journals

  ISSN: 0362-028X , eISSN: 1944-9097

• Water Resources Protection

  Journals

  ISSN: 1004-6933

• JOURNAL OF RADIOLOGICAL PROTECTION

  Journals

  ISSN: 0952-4746 , eISSN: 1361-6498

• Elastic protection coating for ship fuel tanks, intended for the increasing of environment protection level

  Publication

  • J. Kozak

  - Polish Maritime Research - Year 2008

  W opracowaniu przedstawiono problemy związane z wprowadzeniem nowego rozwiązania dla podniesienia bezpieczeństwa zbiorników paliwowych, poprzez zainstalowanie we wnętrzu zbiornika drugiej elastycznej bariery ochronnej opartej na warstwie wypełniacza. Przedstawiono wyniki prac związanych z doborem parametrów warstwy drugiej bariery jak również materiału wypełniacza.

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• Neutral earthing reactor protection

  Publication

  • K. Dobrzyński
  • Z. Lubośny
  • J. Klucznik
  • S. Czapp

  - Year 2017

  The IEEE and CIGRE recommend protection systems for high voltage shunt reactors. Unfortunately the recommendations do not include guidelines for the protection of neutral earthing reactors, which are often connected to shunt reactors to increase the effectiveness of single pole auto-reclosing. The paper discusses earthing reactor protection issues with particular emphasis on the detection of internal faults. An analysis carried...

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• Protection in elastic optical networks

  Publication

  • R. Goścień
  • K. Walkowiak
  • M. Klinkowski
  • J. Rak

  - IEEE NETWORK - Year 2015

  In this article, we analyze gains resulting from the use of EON architectures with special focus on transportation of cloud-ready and content-oriented traffic in the context of network resilience. EONs are a promising approach for future optical transport networks and, apart from improving the network spectral efficiency, bring such new capabilities as squeezed protection, which reduces resource requirements in failure scenarios....

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• Archaeological Prospection

  Journals

  ISSN: 1075-2196 , eISSN: 1099-0763

• The Journal of Plant Protection Sciences

  Journals

  ISSN: 2249-3840

• Indian Journal of Environmental Protection

  Journals

  ISSN: 0253-7141

• Hellenic Plant Protection Journal

  Journals

  ISSN: 1791-3691

• Arab Journal of Plant Protection

  Journals

  ISSN: 0255-982X

• Corrosion Science and Protection Technology

  Journals

  ISSN: 1002-6495

• New Zealand Plant Protection

  Journals

  ISSN: 1175-9003

• Archives of Phytopathology and Plant Protection

  Journals

  ISSN: 0323-5408

• Journal of Radiation Protection and Research

  Journals

  ISSN: 2508-1888 , eISSN: 2466-2461

• Nuclear Technology & Radiation Protection

  Journals

  ISSN: 1451-3994

• Journal of Environmental Protection and Ecology

  Journals

  ISSN: 1311-5065

• Journal of Fire Protection Engineering

  Journals

  ISSN: 1042-3915

• Journal of Plant Diseases and Protection

  Journals

  ISSN: 1861-3829 , eISSN: 1861-3837

• Journal of Data Protection and Privacy

  Journals

  ISSN: 2398-1679 , eISSN: 2398-1687

• Angiotensin receptor blockers and endpoint protection

  Publication

  • S. Kjeldsen
  • T. Hedner
  • K. Narkiewicz

  - BLOOD PRESSURE - Year 2005

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• On Religious and Cultural Principles of Environmental Protection

  Publication

  • R. Sadowski
  • R. F. SADOWSKI

  - Problemy Ekorozwoju - Year 2020

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• Management and protection system for superconducting tokamak

  Publication

  • B. Juszczyk
  • A. Wojenski
  • P. Zienkiewicz
  • G. Kasprowicz
  • K. Pozniak
  • R. Romaniuk
  • R. S. Romaniuk

  - Year 2015

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• Oxylipins in Plant Protection/Disease Management

  Publication

  • B. Sawicka
  • P. Barbaś
  • D. Skiba
  • P. Pszczółkowski
  • F. Yeganehpoor

  - Year 2023

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• Effective length of lightning protection earthings

  Publication

  • S. Wojtas

  - Year 2011

  System uziemień współczesnych obiektów jest zwykle bardzo rozległy, a na łączenie poszczególnych elementów uziemiających za pomocą głównej szyny wyrównania potencjałów uwzględnia także uziemienia stacji transformatorowej. Ocena przydatności takiego systemu uziemień do celów ochrony odgromowej nie jest prosta, bo tylko jego część określana, jako długość efektywna bierze udział w odprowadzaniu do gruntu prądu piorunowego. Praca zawiera...

• Landscape protection - the challenge for sustainable planning

  Publication

  • A. Sas-Bojarska

  - Year 2010

  Growing spatial chaos reminds us of the need for systematic, complex approaches related to environmental and landscape issues within different planning, organizational, operational, legal and political activities. It has been proved, that LVIA within EIA plays an important role in the enhancement of the spatial planning system, and that there is a need to use the potential of EIA/LVIA in spatial development and management. But...

• EIS in diagnostic of cathodic protection systems

  Publication

  • K. Żakowski

  - Physico-Chemical Mechanics of Materials - Year 2002

  Zaprezentowano wyniki badań wykonywanych techniką elektrochemicznej spektro-skopiiimpedancyjnej (EIS) na elementach instalacji ochrony katodowej podziemnego rurociągu stalowego. Przedstawiono widma impedancyjne następujących układów: elektroda odniesienia/elektrody pomocnicze; rurociąg/zakopane i przenośne elektrody odniesienia. Wykazano, że przy pomocy prezentowanej techniki można zbadać stan techniczny elektrod odniesienia, co...

• Conducting coatings as anodes in cathodic protection

  Publication

  • K. Darowicki
  • J. Orlikowski
  • S. Cebulski
  • S. Krakowiak

  - PROGRESS IN ORGANIC COATINGS - Year 2003

  Przedstawiono wyniki pomiarów elektrochemicznych powłok przewodzących opartych o mieszaninę pigmentów węglowych osadzonych w matrycy polimerowej. Wyznaczono parametry powłok przewodzących w oparciu o metodę elektrochemicznej spektroskopii impedancyjnej. Parametry elektryczne i elektrochemiczne były wyznaczane jednocześnie, w czasie długotrwałej anodowej polaryzacji badanych powłok. Stwierdzono, że badane powłoki mogą być używane...