Shell Diala S3 ZX-IG - Premium Inhibited Electrical Insulating Oil
Shell Diala S3 ZX-IG is a premium inhibited insulating oil manufactured from highly refined mineral oils. It offers very high oxidation stability, good dielectric strength, gas absorbing behaviour and excellent low temperature properties.
Shell Diala S3 ZX-IG meets both the established and new industry copper corrosion tests.
Applications
Transformers
All Power transformer types and applications (e.g. generator transformers, shunt reactors, distribution transformers) and high voltage DC (HVDC) converter stations
Electrical equipment
Components such as rectifiers, circuit breakers, bushings, instrument transformers and switchgears
Advice on applications not covered in this leaflet may be obtained from your Shell Representative.
Performance Features and Advantages
Extended oil life
Shell Diala S3 ZX-IG is a fully inhibited oil giving outstanding oxidation performance and an extended oil life.
Diala S3 ZX-IG provides gas absorbing performance in transformers running under very high voltage and electrical stress. This makes it particularly suitable for
Generator transformer and HVDC converter applications.
Transformer protection
Shell Diala S3 ZX-IG is non-corrosive towards copper, with no need for additional passivation.
Shell Diala S3 ZX-IG meets all relevant tests for copper corrosion, namely the established DIN 51353 (Silver Strip Test), ASTM D1275, and also the latest more severe tests: IEC 62535 and ASTM D1275B.
System efficiency
The good low temperature properties of the oil ensures proper heat transfer inside the transformer, even from very low starting temperatures.
Specification and Approvals
IEC 60296 (2003), Table 2 Transformer Oil (I), inhibited
Baader oxidation test of (obsolete) DIN 57370-1 (1978)
Storage precautions
The critical electrical properties of Shell Diala S3 ZXIG are easily compromised by trace contamination with foreign material. Typically encountered
contaminants include moisture, particles, fibres and surfactants. 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.
Health and Safety
Guidance on Health and Safety is available on the appropriate Material Safety Data Sheet which can be obtained from your Shell representative.
Shell Diala S3 ZX-IG is free from polychlorinated biphenyls (PCB).
Protect the environment
Take used oil to an authorized collection point. Do not discharge into drains, soil or water.
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