Results 31 to 40 of about 30,341 (295)

A Multi-Objective Planning Framework for Optimal Integration of Distributed Generations [PDF]

open access: yes, 2013
This paper presents an evolutionary algorithm for analyzing the best mix of distributed generations (DG) in a distribution network. The multi-objective optimization aims at minimizing the total cost of real power generation, line losses and CO2 emissions,
Howe, Joe   +2 more
core   +1 more source

Study on voltage characteristics of short air arc with high current density arc root

open access: yesAIP Advances, 2019
In this paper, the voltage characteristics of short air arc with high average current density arc root were studied at atmospheric pressure. Cu-W electrodes with diameter of 5-14mm and gap length of 0.2-3 mm were used in the experimental study.
Tiansheng Zhu   +4 more
doaj   +1 more source

Precise multi‐dimensional temperature‐rise characterisation of switchgear based on multi‐conditional experiments and LPTN model for high‐capacity application

open access: yesHigh Voltage, 2021
As the power load increases, the capacity of switchgear becomes larger so the problem of overheating of switchgears becomes more significant. Whether the switchgears operate safely and reliably affects the reliability and economy of the entire power ...
Xiaorui Wang   +7 more
doaj   +1 more source

Improving the Estimation of Partial Discharge Direction Using a Four-Terminal Surface Current Sensor

open access: yesEnergies, 2023
To improve the insulation diagnosis of a medium-voltage (MV) switchgear, we have developed a four-terminal surface current sensor and a method to estimate the direction of partial discharge occurrence.
Yasutomo Otake, Hiroshi Murase
doaj   +1 more source

Simulation environment design for the investigation of damping and dewing mechanisms in the 12kV high-voltage switchgear

open access: yesE3S Web of Conferences, 2018
The phenomenon of dampness and dewing inside the switchgear can improve the occurrence of serious equipment faults. Based on it, this paper, starting from the occurrence mechanism of dampness and dewing of the switchgear, summarizes the main techniques ...
Pan Qize   +4 more
doaj   +1 more source

Providing decision support for the condition-based maintenance of circuit breakers through data mining of trip coil current signatures [PDF]

open access: yes, 2007
The focus of this paper centers on the condition assessment of 11kV-33kV distribution circuit breakers from the analysis of their trip coil current signatures captured using an innovative condition monitoring technology developed by others.
Campbell, A.   +4 more
core   +1 more source

Research on the fitting method to describe the mathematical expression of VFTO in GIS

open access: yesThe Journal of Engineering, 2018
Very fast transient over voltage (VFTO) is a unique electromagnetic transient phenomenon occurring in Gas Insulated Substation (GIS), which determines the insulation level of the GIS (above 330 kV).
Reem A. Almenweer, Su Yixin, Wu Xixiu
doaj   +1 more source

Research on modularizing design of 10 kV switchgear with line outlet for live maintenance

open access: yesEnergy Reports, 2021
In order to improve the reliability and safety of power supply and reduce the failure rate of switchgear, this paper designs a novel high-voltage switchgear which is reliable and safe.
Yuan Yao   +4 more
doaj  

Study on the operating characteristics of a compound automatic transfer switch based on forced current commutation

open access: yesThe Journal of Engineering, 2019
The automatic transfer switch can solve the problem of voltage drop and instantaneous power interruption, which is one of the most reliable and economical ways to improve the reliability and quality of the power supply.
Qu Lu   +5 more
doaj   +1 more source

Partial Discharge Identification in MV Switchgear Using Scalogram Representations and Convolutional AutoEncoder

open access: yesIEEE Transactions on Power Delivery, 2021
This work proposes a methodology to automate the recognition of Partial Discharges (PD) sources in Electrical Distribution Networks using a Deep Neural Network (DNN) model called Convolutional Autoencoder (CAE), which is able to automatically extract ...
Sonia Barrios   +3 more
semanticscholar   +1 more source

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