Results 1 to 10 of about 285,701 (294)

Adaptive Leakage Protection for Low-Voltage Distribution Systems Based on SSA-BP Neural Network

open access: yesApplied Sciences, 2023
The fluctuation of normal leakage current has a great influence on the fixed-threshold leakage protector. To address this issue, this paper proposes an adaptive leakage protection method based on the sparrow search algorithm (SSA)-backpropagation (BP ...
Zhenguo Liu, Hai Yu, Wei Jin
doaj   +3 more sources

Protecting Dilithium against Leakage

open access: yesIACR Transactions on Cryptographic Hardware and Embedded Systems, 2023
CRYSTALS-Dilithium has been selected by the NIST as the new standard for post-quantum digital signatures. In this work, we revisit the side-channel countermeasures of Dilithium in three directions. First, we improve its sensitivity analysis by classifying intermediate computations according to their physical security requirements.
Azouaoui, Melissa   +9 more
  +6 more sources

Application of intelligent combined switch in power supply system of Majialiang Coal Mine

open access: yesMeikuang Anquan, 2021
In view of the characteristics of scattered distribution and various operation modes of various electrical equipment in coal mining face at present, a combined switch is used for control.
ZHANG Kaihui, HU Yafang, MA Pengfei
doaj   +1 more source

Implementation of leakage elimination operators and subspace protection [PDF]

open access: yesScientific Reports, 2020
AbstractDecoherence-induced leakage errors can potentially damage physical or logical qubits embedded in a subspace of the entire Hilbert space by coupling them to other system levels. Here we report the first experimental implementation of Leakage Elimination Operators (LEOs) that aims to reduce this undermining.
Markaida, B. G., Wu, L.-A.
openaire   +2 more sources

Study on the Technology of Leakage Protection [PDF]

open access: yesThe Open Electrical & Electronic Engineering Journal, 2014
Failure leakage of equipment or electric shock may make the residual current amplitude decrease, which causes effective protection of the fault and the existence of dead zone of operation. This paper presents the principle of residual current leakage protection based on vector, using residual current amplitude and residual current variation of fault ...
Shen Zixing   +3 more
openaire   +1 more source

An integrated protection system for mine-used low-voltage feed switch

open access: yesMeikuang Anquan, 2021
A feed switch protection system in the coal mine based on STM32F407 chip is designed. The system has protection functions such as leakage, overcurrent, and short circuit.
TONG Jun, WANG Yue, WU Weidong
doaj   +1 more source

Study on Selective Insulation On-line Monitoring Technology for Mine Power Network [PDF]

open access: yesE3S Web of Conferences, 2023
In this paper, by studying the change rule of zero sequence voltage when single-phase leakage occurs, the detection method of insulation decline of mine cables is studied, especially the additional low-frequency signal sampling technology of power cables.
Lia Zhong-Kui, Wang Le-Jun
doaj   +1 more source

Electrical Line Fault Detection and Line Cut-Off Equipment and Control

open access: yesJournal of Control Science and Engineering, 2022
In order to locate the leakage fault location of low-voltage electrical lines, cut off the power supply of electrical lines, and ensure the safety and reliability of the power supply network, this paper proposes an electrical line leakage fault detection
Yakun Fu
doaj   +1 more source

Sensitivity analysis of large leakage sodium-water reaction protection system critical parameters with paralleling steam generators in a sodium-cooled fast reactor

open access: yesHe jishu, 2023
BackgroundThe sodium-cooled fast reactor adopts the three loops design with sodium-sodium-water. When a double-ended guillotine (DEG) break occurs in the steam generator (SG) tube, a large leakage sodium-water reaction (SWR) accident occurs, which ...
BAI Xi   +4 more
doaj   +1 more source

A new leakage protection method for mine power network

open access: yesGong-kuang zidonghua, 2016
A new leakage protection method was proposed which was based on least-square matrix algorithm. In the method, zero sequence current signal of each brance is extracted on the basis of additional DC source system, and DC component of the zero sequence ...
ZHAO Jianwen   +6 more
doaj   +1 more source

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