Biến thế

Shell Diala S3 ZX-I is a premium, inhibited electrical insulating oil manufactured from sPeciaHy refined mineral oils with an ultra-low sulphur content. |t offers very high oxidation stability and excellent dielectric and low temperature properties. Shell Diala S3 ZX-I 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)

• Electrical equipment
Components such as rectifiers, circuit breakers and switchgear.
Advice on applications not covered in this leaflet may be obtained from your Shell Representative.
Performance Features and Benefits

• Extended oil life
Shell Diala S3 ZX-I is a fully inhibited oil giving outstanding oxidation performance and an extended oil life. Shell Diala S3 ZX-I is also suitable for use in highly loaded applications.

• Transformer protection
Shell Diala S3 ZX-I is manufactured from an ultra low sulphur base oil, making it intrinsically non-corrosive towards copper, without the need for passivation.
Shell Diala S3 ZX-I 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.

Specifications and Approvals
IEC 60296 (2003): Table 2 Transformer Oil (I) (Inhibited oil) Section 7.1 ("Higher oxidation stabilit/')
Baader oxidation test of (obsolete) DIN 57370-1 (1978)

Storage precautions
The critical electrical properties of Shell Diala S3 ZX-I 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 air¬tight seals. It is further recommended that electrical insulating oils are stored indoors in climate- controlled environments.

Health & 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-I is free from polychlorinated biphenyls (PCB).

Protect the environment
Take used oil to an authorised collection point. Do not discharge into drains, soil or water.

Typical Physical Characteristics