Transformer Oil Breakdown Dynamics Stressed by Fast Impulse Voltages: Experimental and Modeling Investigation

Streamer and breakdown behavior of transformer oil under impulse voltage are investigated with experimental observations and simulation. The optical observation by using Intensified Charge-coupled Device (ICCD) fast snapshot technique indicates that streamer channel branching is of a stochastic natu...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on plasma science 2014-10, Vol.42 (10), p.3004-3013
Main Authors: Yuan Li, Ming Xiao Zhu, Hai Bao Mu, Jun Bo Deng, Guan Jun Zhang, Jadidian, Jouya, Zahn, Markus, Wei Zheng Zhang, Zhi Min Li
Format: Article
Language:English
Subjects:
Branching behavior
Breakdown
Breakdown voltage
Charge coupled devices
Computer simulation
Dielectric liquids
Diffusion
Discharges (electric)
Dynamics
Electric potential
Electric power
Electrodes
Estimating techniques
Experiments
Fluid mechanics
Impulses
Mathematical model
Oil
Oil insulation
streamer
transformer oil
Transformers
Voltage
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Streamer and breakdown behavior of transformer oil under impulse voltage are investigated with experimental observations and simulation. The optical observation by using Intensified Charge-coupled Device (ICCD) fast snapshot technique indicates that streamer channel branching is of a stochastic nature. The 2-D axially symmetric modeling based on hydrodynamic drift-diffusion model is employed to depict the streamer dynamics of transformer oil. The experimental and simulation results reveal that bushy negative streamer requires higher excitation than filamentary positive streamer. Positive streamer travels faster than negative streamer from experimental estimation.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2014.2320751