Results 1 to 10 of about 929,929 (317)

Design of an Over Current Relay (OCR) System on a Distribution Network Using a Raspberry Pi

Journal Geuthee of Engineering and Energy, 2023
Disturbances in the electrical installation system will be detrimental to electricity users because it can cause power outages. Therefore we need a protection system that can overcome disturbances such as the use of Over Current Relay (OCR). With OCR can
Yuli Prasetyo, Budi Triyono, Dimas Nur Prakoso, R. Jasa Kusumo Haryo   +3 more
doaj   +1 more source

THE RELIABILITY OF DETERMINING THE SHORT CIRCUIT ZONE OF THE LINES OF 6–35 kV

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2018
A method of increasing the reliability of determining the zone of short-circuit at the current step protection of the lines of 6–35 kV with unilateral power, aimed at improvement of their technical perfection, is presented in the paper.
F. А. Romaniuk, E. V. Buloichyk, O. A. Huryanchyk, V. S. Kachenya   +3 more
doaj   +1 more source

BLOCKING ALGORITHM FOR CURRENT PROTECTION DURING INRUSH MAGNETIZATION CURRENT

Наука и техника, 2014
The paper presents blocking algorithm for current protection during inrush process. The algorithm is based on the evaluation of the ratio of the positive sequence second harmonic current to the negative sequence first harmonic current.
F. A. Romaniuk, M. S. Loman
doaj   +1 more source

The study on the Mal-operation of the transformer current differential protection during external faults cause by CT saturation [PDF]

E3S Web of Conferences, 2021
This paper analyses the unusual mal-operation of the differential protection for transformer current differential protection during the external fault. The mal-operation reason is researched in detail, based on the mathematical analysis, the simulation ...
Wu Jianhong, Qi Xuanwei, Song Wang, Cao Wenbin, He Jun, Mao Lan   +5 more
doaj   +1 more source

Mechanisms and Characterization of Trichoderma longibrachiatum T6 in Suppressing Nematodes (Heterodera avenae) in Wheat

Frontiers in Plant Science, 2017
Heterodera avenae is an important soil-borne pathogen that affects field crops worldwide. Chemical nematicides can be used to control the nematode, but they bring toxicity to the environment and human.
Shuwu Zhang, Yantai Gan, Yantai Gan, Weihong Ji, Bingliang Xu, Baohong Hou, Jia Liu   +6 more
doaj   +1 more source

PRINCIPLES OF IMPLEMENTATION OF BLOCKING OF CURRENT PROTECTION OF ELECTRICAL POWER UNITS WITH TRANSFORMERS

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2017
Principles of implementation of current protection of elements of electric power systems with power transformers are considered. In some cases, in facilities with power transformers there could be an inrush of a magnetizing current that can cause a false
F. A. Romaniuk, A. G. Shapozhnikova
doaj   +1 more source

Current Issues in Investor Protection

Columbia Business Law Review, 2006
Current Issues in Investor ...
Dillon, Caroline J., Mathiesen, Johnathan, Bucki, Craig R.   +2 more
openaire   +1 more source

Impact of Impulse Current on Current Protection in Fault Recovery and Closing of Active Distribution Networks with Soft Open Point

Shanghai Jiaotong Daxue xuebao
In distribution networks with distributed generation (DG), employing a soft open point (SOP) to replace a tie switch during fault recovery enables load transfer and simultaneous voltage support for distributed generations.
YANG Zengli, WANG Ruoqi, HU Yan, FAN Chunju, WANG Jing
doaj   +1 more source

Design and Implementation of an over Current Protection Laboratory for Electrical Power Transmission Systems Based on PLC Techniques

Tikrit Journal of Engineering Sciences, 2017
This paper describes a modern approach for the protection of transmission lines to ensure their safety against the faults occurred in power systems. Our approach uses a Programmable Logic Controller (PLC) to realize a transmission line as an over current
Hassaan Th. H. Thabet, Ahmed A. Allu
doaj   +1 more source

Panton-Valentine Leukocidin associated Staphylococcus aureus infections in London, England: Clinical and socio-demographic characterisation, management, burden of disease and associated costs

Journal of Infection and Public Health, 2011
Summary: Routine notification of Staphylococcus aureus producing the Panton-Valentine Leucocidin toxin (PVL-SA) to the North East & Central London Health Protection Unit, a communicable disease control unit covering a population of 2.8 million ...
Michael Edelstein, Angela Kearns, Rebecca Cordery   +2 more
doaj   +1 more source