Shell Diala S4 ZX-IG

Standards & approvals

• ASTM D3487

  ASTM D3487 — mineral transformer oil

  The American standard for mineral insulating oils used in transformers and other electrical apparatus.

Specifications

Brand

Shell

Range

Shell Diala

Category

Transformer & dielectric oils

Manufacturer code

001F3480

Availability

On request

Typical characteristics

Manufacturer's description

Shell Diala S4 ZX-IG is an electrical insulating oil from Shell that meets the IEC 60296 and ASTM D3487 Type II performance requirements for high oxidation stability and low sulphur content. In addition, it has been designed to meet the gas absorption challenges presented by specialist equipment manufacturers, such as high-voltage transformers and bushings. It offers an extended oil life and has zero sulphur content. Shell Diala S4 ZX-IG is manufactured from zero-sulphur base oils produced using Shell's GTL (gas-to-liquid) technology. These base oils offer a high degree of compositional consistency and have excellent antioxidant response. In addition, they are available globally and are free from PCBs, DBDS and passivators, containing only DBPC as an antioxidant and a low level of aromatic hydrocarbons (for gas absorption). Shell Diala S4 ZX-IG passes both the established and the new industry copper corrosion tests.

Applications

• Specifications, approvals and recommendations: IEC 60296 (Edition 5, 2020); Type A, fully inhibited high-grade oils.
• IEC 60296 Ed4 (2012): Table 2 Transformer Oil (I) (Inhibited oil) Section 7.1 ("Higher oxidation stability and low sulphur content")
• Performance to ASTM D3487 Type IIFor the full list of equipment approvals and recommendations, please consult your local Shell technical representative.
• IEC 60296 (Edition 5, 2020); Type A, fully inhibited high-grade oils

Performance & benefits

• Extended oil life: a fully inhibited, gas-absorbing oil giving outstanding oxidation performance and an extended oil life.
• Has the ability to absorb gases such as hydrogen that can develop under partial-discharge conditions, making it recommended for special applications such as bushings and transformers requiring gas absorption.
• Transformer protection: manufactured from a zero-sulphur base oil, intrinsically non-corrosive towards copper without the need for passivation, meeting the DIN 51353, ASTM D1275, IEC 62535 and ASTM D1275B tests.
• System efficiency: the oil's good low-temperature properties ensure proper heat transfer inside the transformer even from the lowest starting temperatures.
• It is specially dried and handled for a low water content and a high breakdown voltage at delivery.

Fits

• Transformers & electrical equipment