Results 11 to 20 of about 246 (211)

Influence of harmonic on loss and temperature rise of mine-used dry-type transformer

Gong-kuang zidonghua, 2016
In order to accurately analyze influence of harmonic on loss and temperature rise of transformer, a two-dimensional model of dry-type transformer was established firstly, and leakage magnetic field and harmonic loss in the dry-type transformer were ...
ZHU Jingjing, TIAN Muqin, SONG Jiancheng, WEN Minmi   +3 more
doaj   +1 more source

Optimization of transformer parameters at distribution and power levels with hybrid Grey wolf-whale optimization algorithm

Engineering Science and Technology, an International Journal, 2023
Oil-type transformers (OTT) are used more than dry-type transformers, based on cost in the transmission and distribution of electrical energy. Therefore, this usage density increases the importance of cost in OTT. Weight is important in transformer cost.
Murat Toren
doaj   +1 more source

Analysis of Winding Vibration Characteristics of Power Transformers Based on the Finite-Element Method

Energies, 2018
The winding is the core component of a transformer, and the technology used to diagnose its current state directly affects the operation and maintenance of the transformer.
Xiaomu Duan, Tong Zhao, Jinxin Liu, Li Zhang, Liang Zou   +4 more
doaj   +1 more source

Investigation on Vibration Characteristics of Amorphous Metal Alloy Core Dry-type Distribution Transformer

CES Transactions on Electrical Machines and Systems, 2022
Large power transformers have severe vibration and noise problems. Thus, as the source of noise, it is vitally important to have accurate core vibration calculations.
Kammeugue Noubissi Romaric, Daosheng Liu, Boxue Du   +2 more
doaj   +1 more source

Partial discharge pattern recognition method for mine-used dry-type transformer

Gong-kuang zidonghua, 2019
In order to improve recognition accuracy of partial discharge pattern of mine-used dry-type transformer, a partial discharge pattern recognition method for mine-used dry-type transformer was proposed.
TANG Jianwei, SU Hong, YAN Jiaming, ZHANG Jianwen, WANG Jinchuan, WANG Enjun   +5 more
doaj   +1 more source

A Comparative Analysis Applied to the Partial Discharges Identification in Dry-Type Transformers by Hall and Acoustic Emission Sensors

Sensors, 2022
Dry-type insulated transformers stand out for their higher applicability in substations, high-voltage instrumentation systems, and electrical installations. In this machine, the insulation system is constituted of dielectric materials such as epoxy resin
Bruno Albuquerque de Castro, Vitor Vecina dos Santos, Guilherme Beraldi Lucas, Jorge Alfredo Ardila-Rey, Rudolf Ribeiro Riehl, André Luiz Andreoli   +5 more
doaj   +1 more source

Analysis of the Electromechanical Characteristics of Power Transformer under Different Residual Fluxes

Energies, 2021
When the electromagnetic transients occur in a power transformer, an inrush current is generated in its winding. The inrush current not only affects the performance of the transformer windings, but also affects the lifetime of the transformer.
Wenqi Ge, Chenchen Zhang, Yi Xie, Ming Yu, Youhua Wang   +4 more
doaj   +1 more source

Partial Discharge Mitigation of Medium-Voltage, Medium-Frequency Dry-Type Transformers Using Semiconductive Screening

IEEE Open Journal of Power Electronics
This paper presents a practical approach to reduce the size of medium-frequency, medium-voltage dry-type transformers through the innovative use of semiconductive screening.
Reza Mirzadarani, Zhengzhao Li, Zian Qin, Peter Vaessen, Pavol Bauer, Mohamad Ghaffarian Niasar   +5 more
doaj   +1 more source

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

FEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes, Jan Brysch, Carmen Gelze, Lilli Meier, Daniel Kümmel   +4 more
wiley   +1 more source

Influence of Core's window height on leakage reactance of power transformers

Results in Engineering, 2023
To examine leakage reactance, different analytical methods are often used. This paper addresses one of the major problems which is practically encountered during the leakage reactance evaluation.
Kamran Dawood, Semih Tursun
doaj   +1 more source