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Background [2] On the 15 May 2005 this 390 MVA GSU transformer failed. During the previous unit outage the transformer oil was purif... -
INTRODUCTION A major challenge to transformer engineers of power utilities and major industries is the management of an ageing transform... -
The Rogers Ratio method is another ratio method very similar to the Dornenburg method however only having the three ratios R1 :CH 4 /H 2 ... -
Different gases/parameters have different solubility levels in mineral oil [DiGiorgio1]. It is important to correctly identify the level... -
Power transformers are generally designed for an operating life of 30 to 35 years. However, depending on how the transformer is operated,... -
The correct design and operation of the cooling system of a power transformer is very important to maintain the health of the transformer. ... -
The following report highlights the problem of the production of combustible gases in the selector of the tap changer of gen/motor transfo... -
The Duval Triangle Method makes use of the three combustible gases CH 4 , C 2 H 4 and C 2 H 2 that are transformed for representation i... -
Background: After running under elevated gas levels the transformer was taken out of service for an on-site internal inspection on 9 M... -
Background: A 700 MVA GSU transformer indicated increasing gassing trends before shut down in 2004 for an internal inspection. Prior t...
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