Shell Diala Oil S

Shell Diala Oil S
Electrical insulating oil
Shell Diala S is an uninhibited electrical insulating fluid specially designed for use in large power and distribution transformers.

It is a special, highly pure raffinate with particularly good flow and low pour point characteristics. 
Phân phối - bán dầu cách điện máy biến áp, máy biến thế Shell Diala cao cấp
Applications
Shell Diala S is primarily intended for use in:
- Large power and distribution transformers
Performance Features
- Excellent cooling and heat transfer properties
 A very low pour point and minimal change of viscosity give Shell Diala S its remarkable cooling capacity
- Natural stability and resistance to oxidation

 Possesses an natural stability and good resistance to oxidation without the use of additives. Limits the formation of organic acids and deposits due to the action of oxygen in the air at the operating temperatures and to the catalytic effect of iron and copper. The formation of these harmful deposits has an adverse effect on the efficient operation of transformers.
 Shell Diala S satisfies the increasingly severe stability requirements of the accelerated oxidation test part of IEC 296.
- Excellent dielectric properties
 A figure of >70 kV for processed fresh oil is an indication of its excellent insulating capacity
- Compatible with construction materials
 Compatible with all common construction materials used in electrical systems
Shell Diala S does not contain PCBs
Performance Specifications
Shell Diala S meets the following specifications:

IEC 296 (1982) Classes I & II
UTE NF C 27 101 (1982) Classes I & II
EDF HN 27-S-02 (1984)
Packaging
Shell Diala S is stored in containers under an inert nitrogen atmosphere

Storage Precautions
The critical electrical properties of Shell Diala S are easily compromised by minute concentrations of contaminants. Typically encountered  contaminants include moisture, particulates, fibres and surfactants. Therefore, it is impera-tive 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 be stored indoors in climate-controlled environments.

Health & Safety
Shell Diala S is unlikely to present any significant health or safety hazard when properly used in the recommended application, and good standards of industrial and personal hygiene are maintained.
For further guidance on Product Health & Safety refer to the appropriate Shell Product Safety Data Sheet.
Advice
Advice on applications not covered in this leaflet may be obtained from your Shell
Representative
Typical Physical Characteristics