Results 41 to 50 of about 79,054 (321)

Determination of protection system requirements for DC UAV electrical power networks for enhanced capability and survivability [PDF]

open access: yes, 2011
A growing number of designs of future Unmanned Aerial Vehicle (UAV) applications utilise dc for the primary power distribution method. Such systems typically employ large numbers of power electronic converters as interfaces for novel loads and generators.
Burt, Graeme   +7 more
core   +1 more source

Parameters design of voltage sharing components for the series multi‐break mechanical switch

open access: yesIET Science, Measurement & Technology, 2022
Series multi‐break mechanical switch is one of the critical components of high‐voltage hybrid DC circuit breakers. However, due to the existence of distributed capacitance, the voltage distribution between the breaks is not balanced.
Daochun Huang   +5 more
doaj   +1 more source

A Review on Hybrid Circuit Breakers for DC Applications

open access: yesIEEE Open Journal of the Industrial Electronics Society, 2023
Direct current (dc) power system protection presents a major challenge due to its unique characteristics, namely the absence of natural zero current crossing points. Thanks to their features, dc protection devices allow the safe commutation of the fault current.
Ana Rafaela Figueiredo Bento   +2 more
openaire   +2 more sources

Metal Oxide Varistor Design Optimization and Main Breaker Branch Switch Control of A Progressively Switched Hybrid DC Circuit Breaker [PDF]

open access: yes, 2022
In this work, metal oxide varistor (MOV) design optimization and switching control in the main circuit breaker (MCB) branch of a progressively switched hybrid DC circuit breaker (DCCB) is presented. A progressively switched hybrid DCCB can achieve faster
Md Rifat Kaisar Rachi (10978311)   +1 more
core   +1 more source

A Modified Hybrid DC Circuit Breaker With Reduced Arc for Low Voltage DC Grids

open access: yesIEEE Access, 2021
The increasing demand for the development and utilization of renewable energy resources has lead to a growing interest in the development of LVDC systems.
C. N. Muhammed Ajmal   +4 more
doaj   +1 more source

Current Limiting Hybrid High Voltage DC Circuit Breaker With Reclosing Function Limiting

open access: yesJournal of Applied Science and Engineering, 2022
DC circuit breaker is the core equipment for the safe operation of DC transmission system. A current limiting hybrid HVDC circuit breaker topology with reclosing function is proposed in this paper.
Baoge Zhang   +4 more
doaj   +1 more source

Short-Circuit Fault Current Calculation Method for the Multi-Terminal DC Grid Considering the DC Circuit Breaker

open access: yesEnergies, 2020
The analysis and calculation of the short-circuit fault current in the DC grid is of great significance to the design and configuration of the converter station and DC circuit breaker parameters.
Haipeng Jia   +5 more
doaj   +1 more source

A Topology of Current limiting Hybrid DC Circuit Breaker

open access: yesJournal of Harbin University of Science and Technology, 2023
To solve the problem that most of the current hybrid DC circuit breakers do not have the current limiting function and the cost is too high, a low-cost current limiting hybrid DC circuit breaker is proposed.When the fault occurs, the ultra-fast ...
DONG Henan   +4 more
doaj   +1 more source

Fault Current Detection Based on Neural Network in Hybrid Circuit Breaker [PDF]

open access: yes, 2011
Power system short circuit and fault current detection circuit breaker is a hybrid produced the basis for action, rapid detection methods and effectiveness of a direct impact on the circuit breaker switch performance.
Yue Feng, Yang Zhao, Qi Yong Wen
core   +1 more source

Influence of UHV GIL access on transient recovery voltage of circuit breaker

open access: yes电力工程技术, 2022
The access of ultra high voltage (UHV) gas-insulated transmission line (GIL) affects both the transient recovery voltage (TRV) amplitude and the rate of rise of TRV (RRRV) of circuit breakers,which may endanger the breaking capacity of circuit breakers ...
SUN Yi   +5 more
doaj   +1 more source

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