Results 51 to 60 of about 184,061 (159)

Analysis of Electric Leakage Fault of Mine Multi-level Power Supply Network and Its Detectio

open access: yesGong-kuang zidonghua, 2012
The paper analyzed fault components at the electric leakage moment of isolated neutral power supply system and power supply network connected to earth through an arc suppression coil, and got electrical characteristics of fault point.
LV Liang-jun   +2 more
doaj  

Transformer rated capacity estimation based on multi-sequence impedance network

open access: yesFrontiers in Energy Research
IntroductionThe inconsistency between the nameplate capacity and actual rated capacity of distribution transformers poses challenges for equipment management and operation.
Yang Minggui   +3 more
doaj   +1 more source

Simulation Analysis of Single-phase Grounding Fault of Resonant Grounding System

open access: yesGong-kuang zidonghua, 2012
For problem of difficult line selection caused by small current of fault line with uncertain direction when single-phase grounding fault happens in resonant grounding system, the paper theoretically analyzed change law of zero-sequence voltage and zero ...
LI Hui, TANG Yi, SUN Chang-qing
doaj  

A fault section location method based on the slope similarity of zero-sequence current waveform for the non-effectively grounding system

open access: yesInternational Journal of Electrical Power & Energy Systems
When a single-phase ground (SPG) fault occurs in a non-effectively grounding system (NUGS), it is crucial to locate the fault section quickly. However, existing detection methods for high-resistance grounding faults suffer from low locating accuracy, and
Xinhui Zhang   +4 more
doaj   +1 more source

Multi-condition control switching strategy for flexible interconnection devices based on zero-sequence suppression

open access: yes电力工程技术
The flexible multi-state switch (FMSS), as a new generation of flexible interconnection device, enables flexible interconnection between different feeders in distribution networks by replacing traditional tie switches.
Xiaolan YANG   +5 more
doaj   +1 more source

A three-phase power flow algorithm for ungrounded network based on constraints of zero-sequence components

open access: yesInternational Journal of Electrical Power & Energy Systems, 2023
Yi Zhang, Jinrong Lin, Chuandong Li
openaire   +1 more source

Circulating Current Suppression Control Method for Distributed Grid-Connected Converter

open access: yesKongzhi Yu Xinxi Jishu
Distributed three-level converters operate in a grid-connected state through an input-parallel output-parallel (IPOP) mode. These converters offer advantages such as high efficiency, high flexibility, and low cost, making them widely applicable in new ...
HU Liang   +5 more
doaj  

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