APPLICATIONS Suitable for all types of power, transmission and distribution transformers. Greater reliability and superior performance from a new transformer oil based on Shell GTL technology www.shell.com/lubricants SPECIFICATIONS & APPROVALS Shell Diala S4 ZX-I is the latest offering in the Shell Diala range of transformer oils. These oils have been supplied to the power industry for more than 50 years and Shell Diala S4 ZX-I has been engineered to cope with the severe stresses imposed by the higher voltages and harsher operating conditions of the latest transformers. Shell Diala S4 ZX-I exceeds IEC60296: Edition 4 (2012) high oxidation stability and low sulphur specifications. It meets the requirements of most major equipment manufacturers and utility companies. Oxidation stability is up to 5x better than the industry highest oxidation stability standard requirements. SUPERIOR PERFORMANCE WORKS HERE. HIGH FLASHPOINT Shell Diala S4 ZX-I helps to keep your transformer working more efficiently and for longer than conventional oils do. It offers improved transformer reliability due to its resistance to degradation as well as having effectively zero sulphur, which removes the risk of oil-related copper corrosion. In addition, Shell Diala S4 ZX-I can enhance your transformer’s operation with its excellent thermal properties under conditions of overloadand also low temperature start up. SULPHUR CONTENT effectively zero, below usual detection limits

TRANSFORMER PERFORMANCE Shell Diala S4 ZX-I has excellent resistance to degradation. Compared to conventional oils, its improved thermal properties help to reduce the ageing rate of both the oil and insulating paper, extending the lifetime of your transformers. Shell Diala S4 ZX-I is derived from purified natural gas which is used to produce a tightly specified hydrocarbon chemical structure. This defined chemistry delivers consistent and reliable performance, unlike crude-based oils which can vary significantly depending on the source and refining process. CALCULATED SPECIFIC HEAT CAPACITY VERSUS...