- Enhanced Protection – Oil is at the heart of your transformer. The Shell Diala range presents a number of options for the best possible protection The new Shell Diala S4 ZX-I exceeds IEC 60296:Ed 4 2012 highest oxidation stability, low sulphur specification. In fact it has essentially zero sulphur (below detection limits) which means that the risk of oil related copper corrosion is removed.
- Longer oil life – Shell Diala transformer oils are designed to last, supporting the extension of your transformer lifetime. Shell Diala S4 ZX-I exceeds the 500-hour oxidation test limit and extends oil life through its exceptional resistance to the effects of ageing, sludge formation and deposit build-up.
- Greater efficiency – For optimum transformer performance, electrical insulating oil must maintain its characteristics over a wide range of operating temperatures. Theorectical modelling predicts that Shell Diala S4 ZX-I could deliver improved operational performance under overload conditions due to enhanced thermal properties.