Shell Diala S5 BD
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Shell Diala S5 BD – Biodegradable Transformer Oil
Premium eco-friendly transformer oil with excellent low-temperature performance
The main applications of Shell Diala S5 BD biodegradable transformer oil include:
- Power and distribution transformers requiring reliable insulation
- Applications where environmental protection and sustainability are top priorities
- Suitable for demanding, high-load and heavy-duty electrical applications
Shell Diala S5 BD is a fully inhibited, sulfur-free transformer oil produced with advanced Shell GTL (Gas-to-Liquids) technology. This premium insulating oil offers outstanding oxidation stability, extended service life, reduced gassing, and extremely low water content. In addition, it is readily biodegradable according to OECD 301B, making it an environmentally responsible choice. Scroll down this page to view all official approvals, specifications, and typical properties of Shell Diala S5 BD biodegradable transformer oil.
Specifications, Approvals & Recommendations of Shell Diala S5 BD
| Shell Diala S5 BD Approvals | Shell Diala S5 BD Specifications |
|---|---|
| IEC 60296 (Ed 5, 2020); Type A, fully inhibited high-grade oils | ASTM D3487 (2016) Type II performance |
| IEC 60296 Ed4 (2012), Table 2 Transformer Oil (I) | DOBLE TOPS (inhibited) performance |
| IEC 60296 (2020) Section 7.1: higher oxidation stability and low sulfur content | CAN/CSA-C50-14 Table 1 Class A Type II (inhibited) |
Shell Diala S5 BD Performance, Features & Benefits
| Features | Benefits and Potential Advantages |
|---|---|
| Readily biodegradable (OECD 301B) | Environmentally friendly and ideal for use in sensitive areas. |
| Extended oil life due to excellent oxidation stability | Lower maintenance costs and longer oil change intervals. |
| Non-corrosive, sulfur-free base oil | Protects transformers without the need for passivators. |
| Low water content and high dielectric strength | Reliable operation in applications with high voltage gradients. |
| Excellent low-temperature viscosity | Improved heat dissipation and cold-start performance. |
Shell Diala S5 BD Typical Properties
| Properties | Method | Min | Max | Typical |
|---|---|---|---|---|
| Visual appearance | IEC 60296 | Clear, free of sediment | Conform | |
| Density @20°C (kg/m³) | ISO 3675 | 895 | 816 | 816 |
| Kinematic viscosity @40°C (mm²/s) | ISO 3104 | 12 | - | 7.4 |
| Kinematic viscosity @-30°C (mm²/s) | ISO 3104 | 1800 | 253 | 253 |
| Flash point (°C) | ISO 2719 | 135 | - | 161 |
| Pour point (°C) | ISO 3016 | -40 | - | -48 |
| Neutralization value (mgKOH/g) | IEC 62021-1 | - | 0.01 | 0.01 |
| Breakdown voltage untreated (kV) | IEC 60156 | 30 | - | 50 |
| Water content drums/IBC (mg/kg) | IEC 60296 | - | 40 | 14 |
| DBDS content (mg/kg) | IEC 62697-1 | Not detectable (< 5) | Conform | |
| PCB content (mg/kg) | IEC 61619 | Not detectable (< 2) | Conform | |
Health, Safety and Environment of Shell Diala S5 BD
Shell Diala S5 BD poses no significant health risks when used correctly. Avoid skin contact and wear appropriate gloves. Safety information is available in the product safety data sheet: epc.shell.com.
Dispose of used oil through an authorized collection point and prevent release into soil or water.
Frequently Asked Questions about Shell Diala S5 BD
1. Is Shell Diala S5 BD suitable for all types of transformers?
Yes, Shell Diala S5 BD is developed for power and distribution transformers, especially in environmentally sensitive areas.
2. What makes Shell Diala S5 BD environmentally friendly?
The product is readily biodegradable (OECD 301B) and contains no PCBs, DBDS, or metallic passivators.
3. How does Shell Diala S5 BD extend transformer life?
Thanks to its excellent oxidation stability, low water content, and non-corrosive properties, components are better protected, and the oil lasts longer.
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