PROJECT TITLE :
Experimental studies of influence of different electrodes on bridging in contaminated transformer oil
Contaminated transformer oil has been tested underneath non uniform electric fields and the effect of different electrode systems presented in this paper. 3 totally different electric fields were examined i.e. DC, AC and DC biased AC. These experiments revealed that with all the various electrodes arrangements, contaminated particles forever shaped bridges between electrodes underneath DC electric field. The bridges were thicker and more particles were attracted with additional uniform electric field (spherical electrode) than with a divergent electrical field (needle-plane).
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