Research of controlled switching strategy to restrain inrush current during the energisation of converter transformer

Research of controlled switching strategy to restrain inrush current during the energisation of converter transformer

When an unloaded converter transformer is being energised, large inrush current may flow in the voltage jump side depending upon the residual flux in the core and the closing voltage angle of the power grid due to the hysteresis characteristics of the core, causing false operation of protective rela...

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Bibliographic Details
Main Authors: Duo Wang, Zhiguo Hao, Zijia Hui, Ke Wang, Guocheng Ding
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:The Journal of Engineering
Subjects:
transients
circuit breakers
power system protection
relay protection
power transformers
power transformer protection
magnetisation
EMTP
electromagnetic coupling
power grids
power system control
controlled switching strategy
voltage jump side
power grid
phase-to-phase electromagnetic coupling relationship
core structure
winding connection mode
three-phase transformer
core residual flux
inrush current restraining
current arc quenching sequence
voltage extinguishing phase angle
inrush transient
converter transformer energising
electromagnetic transients programme
Online Access:https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8694

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https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8694

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