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Shell Diala S2 ZX-A is an inhibited electrical insulating oil manufactured from highly refined mineral oils. It offers good dielectric properties, good oxidation stability and provides efficient heat transfer even at low temperatures. Shell Diala S2 ZX-A meets both the established and the new industry copper corrosion tests.
Unit of Measure

Package Type

 N/A Tote

Viscosity at 40 Degree Celsius (ºC)

N/A 9 cSt

Viscosity at 100 Degree Celsius (ºC) Temperature

 N/A 2.2 cSt

Flash Point

 N/A 150 ºC

Pour Point

N/A -57 ºC

Aniline Point

 N/A 69 ºC

Interfacial Tension at 25 Degree Celsius (ºC) Temperature

 N/A 42 dynes/cm

Rotating Pressure Vessel Oxidation Test (RPVOT)

 N/A 240 min

Dielectric Breakdown

 N/A > 300 (Impulse) kV> 70 (After Treatment) kV40 (As Received) kV

Dielectric Dissipation Factor

 N/A 0.1

72 Hours Sludge by Mass

 N/A < 0.01 %

164 Hours Sludge by Mass

 N/A 0.01 %

Gassing Tendency

 N/A Complies

Oxidation Inhibitor Content

 N/A Complies

PCB Content

 N/A Not Detectable

Water Content

 N/A < 30 mg/kg

Applications

 N/A Transformers - Electrical insulating oil for grid and industrial transformers.

Electrical Equipment - Components such as rectifiers, circuit breakers and switchgears. 

Features and Benefits

 N/A Extended Oil Life - Shell Diala S2 ZX-A is an inhibited oil giving outstanding oxidation performance and an extended oil life. 

System Efficiency - The good low temperature properties of the oil ensures proper heat transfer inside the transformer, even from low, starting temperatures.

Transformer Protection - Shell Diala S2 ZX-A is non-corrosive towards copper, with no need for additional passivation. Shell Diala S2 ZX-A meets all relevant tests on copper corrosion ASTM D1275, and also the latest more severe tests: IEC 62535 and ASTM D1275B.

Claims (Meets Requirements)

 N/A ANSI/ASTM D3487 Type II

Additional Information

 N/A Storage Precautions - The critical electrical properties of Shell Diala S2 ZX-A are easily compromised by trace contamination with foreign material. Typically encountered contaminants include moisture, particles, fibers and surfacants. Therefore, it is imperative that electrical insulating oils be kept clean and dry. It is strongly recommended that storage containers be dedicated for electrical service and include airtight seals. It is further recommended that electrical insulating oils be stored indoors in climate-controlled environments.