Results 1 to 10 of about 326,564 (190)

Over Voltage Transient Protection Network Design [PDF]

open access: yesEngineering and Technology Journal, 2009
Transient over-voltage caused by lighting, switching large inductive loads,couples on to data communication or instrumentation signal lines and introduce series fault alarm conditions and damage instrumentation electronics.
Miqdad T. Younis, Nidhal Y. Nasser
doaj   +2 more sources

Over-voltage protection for grid-connected picohydro generation using photovoltaic inverters

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2021
Very small-scale hydropower plants are environmentally friendly and renewable resource-based innovative solutions. The interest in pico-hydro systems (up to 5 kW) has increased significantly from the first stand-alone applications, at remote sites, to ...
Isabella C. Scotta   +2 more
doaj   +1 more source

Reliability of semiconductor and gas-filled diodes for over-voltage protection exposed to ionizing radiation [PDF]

open access: yesNuclear Technology and Radiation Protection, 2009
The wide-spread use of semiconductor and gas-filled diodes for non-linear over-voltage protection results in a variety of possible working conditions.
Stanković Koviljka   +2 more
doaj   +1 more source

IoT Based Remote Monitoring, Control, and Protection of Irrigation Water ‎Pumping System ‎ [PDF]

open access: yesJournal of Operation and Automation in Power Engineering, 2023
The Internet of Things (IoT) is a multidisciplinary concept that includes a wide range of application domains and device capabilities. The IoT technology provides a platform that allows apparatus to be monitored by sensors, connected using a ...
M. K. Kirar
doaj   +1 more source

Over Voltage and Under Voltage Protection System Using IoT

open access: yesJournal of Physics: Conference Series, 2022
Abstract Sudden fluctuation in voltage may cause a serious problem in industries and home appliances. These fluctuations may significantly impact the power quality as well as the reliability of other voltage controlling devices. However, this paper discussed about designing for under voltage and over voltage protection to protect and ...
Mohd Anuar Bin Mohamed Ayub   +5 more
openaire   +1 more source

Design of protection module of intrinsic safety power supply based on LT4356

open access: yesGong-kuang zidonghua, 2014
In view of problems of simple protection function, low conversion efficiency, poor anti-interference ability and low intrinsic safety current existed in current protection module of intrinsic safety power supply, a protection module of intrinsic safety ...
XIE Guojun   +3 more
doaj   +1 more source

Protection of power transformer using microcontroller-based relay [PDF]

open access: yes, 2002
This paper describes the design and implementation of the micro controller-based system for protecting power transformer. The system includes facilities for discrimination between internal fault current and magnetizing inrush current, differential ...
Bashi, Senan Mahmood   +4 more
core   +1 more source

Sequences selection research on over-voltage and over-current protection for intrinsic safety power supply

open access: yesGong-kuang zidonghua, 2019
Over-voltage and over-current protection are two forms of over-voltage and over-current protection sequences of intrinsic safety power supply. In order to study the influence of different protection sequence forms on safety performance of intrinsic ...
BAO Changjun   +4 more
doaj   +1 more source

Comparison of multiple stage braking circuits for wind driven generators [PDF]

open access: yes, 2016
This paper presents multiple stage braking circuits for wind turbines with a permanent magnet synchronous generator. The system combines both passive converter circuit coupled to a resistive braking circuit.
Valchev, Vencislav Cekov   +2 more
core   +1 more source

Design analysis of mine-used intrinsic safety power supply

open access: yesGong-kuang zidonghua, 2014
In view of requirements that intrinsic safety power supply must has multi-protection of over-current and over-voltage, the paper introduced working principle of a circuit of mine-used intrinsic safety power supply based on LM317 regulator, analyzed ...
LIU Qi
doaj   +1 more source

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