Self-capacitance grading approach to suppress winding resonance in EHV transformers under oscillatory terminal disturbances

Self-capacitance grading approach to suppress winding resonance in EHV transformers under oscillatory terminal disturbances

Interleaving of the high-voltage winding turns is a widely-accepted method for restraining the surge voltage stresses in extra high voltage (EHV) transformers. Reduction of voltage stresses under external surge is attributed by the increase in the self-capacitance of the interleaved winding disks. H...

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Bibliographic Details
Main Authors: Shampa De, Abhinandan De, Gautam Bandyopadhyay
Format: Article
Language:English
Published: Wiley 2018-12-01
Series:High Voltage
Subjects:
transformer windings
EMTP
power transformers
coils
external surge
uniform interleaving
interleaved coils
collective resonance
internal resonances
graded interleaving
EHV transformer windings
two-winding transformer
capacitance grading approach
high-voltage winding turns
extra high voltage transformers
interleaved winding disks
tap changer
ATP simulations
EMTP simulations
real-time implementation feasibility
winding resonance suppression
voltage 33.0 kV
voltage 132 kV
Online Access:https://digital-library.theiet.org/content/journals/10.1049/hve.2018.5028

Internet

https://digital-library.theiet.org/content/journals/10.1049/hve.2018.5028

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