الفهرس 
AcknowledgementOnly 14 pages are availabe for public view
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Abstract
The experimental study presented in this thesis gives the rosu1ts ofgassing measurements in transforneroilandliquid paraffinunderalternatingvoltages using a pirolli – type gassing cell! The effects on gassing of a very wide range of tetralin .( 0-100% )and naphthalene (o-saturatj.on ) concentrations under
hydrogen and nitrogen as gas phases and stresses ranging from 36 to 6l+ICV/cm. have been investigated for booth liquids
’The effect of temperatu:re( room temp.to 80.c ) on gassing of Jiquid parffin with and without naphthalene as additive andwith hydrogen as gas phase was also investigatedo AJJ. gassing
charactersti..cs were obtained for times. Up to five hours .The results obtained indieate that naphthalene is more effective than tetralin, in inhibiting gasses generated in liquid.
paraffin.Pseudo-optimum tetralin cencentrations were evident fordep8ndont on the gas phase • On the other ha.nd, results showed Found for all, stresses examined and 90% tetratin ins~tl1ratedliquidparaffin ) ’. time and on the gas phase.
T.osts v.nder contro1led.tmperature showed that there is no
optium temperature for minimizing gassing of liquid paraffin
gas-evolution levels for all stresses,are higher at the.