Electrical Liquids
The power sector continues to face multiple, evolving challenges. Operators must meet growing demand while making the most of aging infrastructure and managing the complexity of an energy generation process that is becoming more diversified and more decentralized.
Shell has been advancing the development of transformer liquids for more than 80 years.1 We are here to help maximize the output, performance and reliability of your transformer equipment, existing and new, to meet the growing demand for power.
Shell's expanded portfolio of ester and gas-to-liquid transformer liquids helps industries and grids that can't afford to fail.
Electrical Liquids for Transformers
| Transformer Liquids | Brochure |
|---|---|
| Shell MIDEL 7131 – Synthetic Ester liquid | Product page |
| Shell MIDEL eN 1204 – Natural Ester liquid | Product page |
| Shell MIDEL eN 1215 – Natural Ester liquid | Product page |
| Shell Diala S5 BD – Isoparaffinic | Product page |
| Shell Diala S4 ZX-IG – Isoparaffinic | Product page |
| Shell Diala S2 ZX-A – Naphthenic | N/A |
Improve the efficiency and sustainability of your transformers while reducing total cost of ownership with the Shell Diala and Shell MIDEL ranges of transformer liquids that protect your equipment and keep it running smoothly throughout its lifetime.
Shell Diala and Shell MIDEL represent a range of high-performance transformer liquids, including fluids based on gas-to-liquid (GTL) technology, that help you to contribute to meeting the growing global demand for energy.
Offering enhanced protection, longer life and greater system efficiency, these liquids maximize equipment performance to overcome challenges like increased loads and higher voltages.
Benefits of Shell's advanced transformer liquid portfolio
Fire mitigation
Shell MIDEL’s K class liquids3 have a high fire and flash point that improves safety, lowers risk from fire and reduces the cost of fire protection4 .
Reduce environmental impact
Shell MIDEL ester liquids and Shell Diala S4 ZX-IG and S5 BD are biodegradable, breaking down faster than mineral oil and reducing environmental impact from spills or waste disposal.5
Cold temperature performance
Shell MIDEL 7131 and Shell Diala S4 ZX-IG and S5 BD have very low pour points to support efficient operations in extremely cold environments.2
Extended asset life
Shell MIDEL offers excellent moisture tolerance, while Shell MIDEL 7131 boasts high oxidation stability. Shell Diala is virtually sulphur free with high oxidation stability.2
Shell Diala | Product Video | Shell Lubricant Solutions
Read the transcript
Read the transcript
Title: Shell Diala range
Duration: 50 seconds
Description: Video describing the key features and benefits of the Shell Diala range of isoparaffinic transformer oils.
Shell Diala range (50 secs US) transcript
[Up-tempo, energetic background music plays]
[Video sequence]
The camera pans over a busy city at night-time. Video changes to a Shell laboratory showing engineers developing Shell transformer oil products. The Shell Diala wordmark is present in the top-right corner throughout the video.
[Voiceover says]
Shell Diala isoparaffinic transformer oils are expertly created to help meet the world’s growing energy demand.
[Text displays]
Shell Diala isoparaffinic transformer oils are expertly created to help meet the world’s growing energy demand.*
*High-quality transformer oils as per ASTM D3487 inhibited type II, CAN/CSA-C50 Class A/B Type II/IV and IEC 60296 inhibited Type A high grade.
[Video sequence continues]
A larger version of the Shell Diala wordmark is shown against a close up of the surface of a clear fluid. Video changes to show the clear fluid being slowly poured.
[Voiceover continues]
They provide high oxidation stability, resisting degradation for longer oil life
[Text displays]
They provide high oxidation stability,* resisting degradation for longer oil life
*Shell internal testing results. Shell Diala S4 ZX-IG and Shell Diala S5 BD are based on virtually sulfur-free base stock. ASTM D2112 (as part of ASTM D3487).
[Video sequence continues]
The camera pans slowly around a power distribution station’s transformer equipment. The video changes to show electricity pylons over a mountainous and snowy landscape.
[Voiceover continues]
and contribute to reliable insulating performance, with exceptional flow properties at high and extremely low temperatures
[Text displays]
and contribute to reliable insulating performance. With exceptional flow properties at high and extremely low temperatures*
*Shell Diala S5 BD <−48°C pour point & flash point 161
[Video sequence continues]
A Shell researcher is shown comparing a sample bottle of Shell GTL base oil with conventional Group II base oil.
[Voiceover continues]
and low foaming tendency, the oils provide greater efficiency.
[Text displays]
and low foaming tendency, the oils provide greater efficiency.
[Video sequence continues]
The camera pans slowly around a power distribution station’s transformer equipment. The video changes to an engineer inspecting transformer equipment.
[Voiceover continues]
They are lower in density, which means more volume per ton, to reduce the total weight.
[Text displays]
They are lower in density, which means more volume per ton, to reduce the total weight*
*Shell internal testing results. Less weight required to fill the transformer; better transportation for the transformer. Difference is greater when compared against ester fluids.
[Video sequence continues]
The video shows an electricity pylon silhouetted against a twilight sky.
[Voiceover continues]
Shell Diala S5 BD provides a readily biodegradable solution.
[Text displays]
Shell Diala S5 BD provides a readily biodegradable solution.*
*Shell internal testing results. Readily biodegradable according to test method OECD 301B.
[Video sequence continues]
A partial view of the Earth from space. The Shell pecten logo is then shown with the web address.
[Voiceover continues]
Explore the Shell Diala range today.
[Text displays]
Explore the Shell Diala range today.
[Background music changes to a few uplifting piano notes]
[Video sequence continues]
The end of the video shows the Shell pecten logo and web address.
[Text displays]
Inquire about Shell transformer liquids
Disclaimers:
1. The first special liquid (Shell Oil K8) developed by Shell dates back to 1920, predating the IEC s (International Electrical Committee) first edition of transformer oil specifications published in 1969.Z
2. Shell MIDEL 7131 meets IEC 61099 and ASTM D8240 specifications. Shell MIDEL eN 1204 and eN 1215 meets IEC 62770 and ASTM D6871 specifications. Shell Diala S4 ZX-1, ZX-IG and S5 BD meets IEC 60296 and ASTM 3487 specifications.
3. Shell MIDEL fluids are classified as K Class, with high fire and flash points, and are less flammable. These properties can prevent a transformer fire and save the property, people and environment in its surroundings. FM Approved, UL classified. FM Global, an international insurance carrier, provides a certification mark called FM Approvals through its independent testing arm. Safety products must be tested and approved before they are sold to the public. Underwriters Laboratories, a non profit testing facility headquartered in Northwood, Illinois, is one of the organisations responsible for testing and approving these types of product.
4. FM Global Data Sheet 5-4 (July 2019), spacing based on fire clearances only. Advice should not override countries local legislation and laws.Z
5. Shell MIDEL is non hazardous according to the CLP regulation and GHS guidance. Shell MIDEL and Diala S4 ZX-1 and S5 BD can be claimed as biodegradable according to OECD 301 test (product).
