Shell Diala – Transformer Oils Product Portfolio
“Enhance your transformer operations without compromise”
Shell Diala is a specialized portfolio of insulating oils designed for use in electrical transformers and associated equipment. During operation, transformers generate heat and require effective insulation to prevent electrical breakdown. Shell Diala oils serve a dual function as both a coolant and an insulating medium, ensuring safe, efficient, and reliable transformer performance.
The Shell Diala series enhances operational efficiency and sustainability while lowering total cost of ownership by protecting equipment and maintaining smooth performance throughout its service life. Formulated with highly refined mineral oils or advanced gas-to-liquid (GTL) synthetic base oils,
these fluids deliver superior electrical and thermal characteristics. As high-performance transformer oils, Shell Diala products support the growing global demand for energy by offering extended oil life, enhanced protection, and improved system efficiency - helping transformers operate effectively under increasing loads and higher voltages.
Oils manufactured using GTL technology - such as Shell Diala S4 ZX-I and Shell Diala S4 ZX-IG - provide distinct advantages over conventional mineral oils. They deliver consistent and reliable performance across applications ranging from distribution transformers to high-voltage direct current (HVDC) systems, thereby increasing equipment dependability. In addition, GTL-based transformer oils are fully compatible with most conventional oils, making them straightforward to integrate into existing lubrication systems.
(To meet the challenges of a wide range of electrical transformers and its applications, Shell has designed a portfolio of oils that enables you to choose a product to match your technical and operational needs).
Kindly click on the respective product / item link below to download the application specific Technical Data Sheet
FEATURES:
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Transformer Reliability (Ensures stable insulation and cooling under continuous high voltage)
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Excellent Electrical Insulation (Provides high dielectric strength to prevent electrical discharges or short circuits inside transformers)
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High Oxidation Stability (Resists degradation under heat and oxygen exposure)
(Prevents sludge and acid formation inside the transformer) -
Good Cooling Properties (Efficiently removes heat from windings and cores, ensuring stable operation)
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Moisture Control (Low water solubility keeps moisture away from electrical components)
(Protects insulation paper and reduces risk of breakdown) -
Compatibility (Works with a wide range of transformer materials - copper, insulation paper, gaskets, etc)
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Long Service Life (Extends transformer oil life and reduces the need for frequent replacements)
Applications and Use Cases :
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Power Transformers
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Distribution Transformers
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Instrument and Auxiliary Transformers
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Switchgear and Electrical Equipment