NYTRO® BIO 300X: Sustainable Upgrade for Transformers
Discover how Nynas NYTRO® BIO 300X boosts your transformer performance through superior cooling and sustainability – an efficient solution for refurbishment.
Nynas ReSolution is a collection of products and solutions that can help you achieve sustainable performance in various ways. A standout example of this is NYTRO® BIO 300X, a biodegradable, superior insulating liquid for transformer refurbishment.
Sustainability through Innovation: REDUCE, REINFORCE, RECIRCULATE, RENEW
NYTRO® BIO 300X is derived from renewable hydrocarbons sourced from waste biomass. Unlike other bio-based alternatives such as esters, it avoids conflicts with land use, food crops, and freshwater resources.
- RENEW: Renewable raw materials reduce the consumption of non-regenerative resources.
- REINFORCE: The unique bio-based hydrocarbon liquid features superior oxidation stability, which strengthens the longevity of the transformer.
- RECIRCULATE: At the end of its life, NYTRO® BIO 300X can be recirculated by over 95% via a hydrogenation process, enabling an endless circular performance loop.
- REDUCE: Efficient cooling reduces energy losses in the form of heat dissipation.
Superior Stability and Environmental Friendliness
Compared to conventional transformer oils and esters, NYTRO® BIO 300X offers an outstanding combination of longevity and biodegradability:
| Property | Mineral Oil | Natural Ester (NE) | Synthetic Ester (SE) | NYTRO® BIO 300X |
|---|---|---|---|---|
| Oxidation Stability (IEC 61125) | Standard | 48 h | 164 h | > 500 h |
| Biodegradability | Low | Readily biodegradable | Readily biodegradable | Readily biodegradable (> 90%) |
Performance Increase and Capacity Upgrade
A field experiment with a 24/30 MVA transformer showed impressive results. By switching the oil to NYTRO® BIO 300X, the hot-spot temperature alone was reduced by 9 °C. In combination with additional fans, the hot-spot was reduced by as much as 16.1 °C at rated capacity.
Field Study Results
| Scenario | IEC Limits | ONAF + extra fans = [MVA] |
ONAF + extra fans + NYTRO BIO 300X =[MVA] |
|---|---|---|---|
| Normal paper | 78 °C | 31.7 (+6%) | 34.0 (+13%) |
| Top-oil | 60 °C | 32.9 (+10%) | 35.1 (+17%) |
| Thermally upgraded paper | 90 °C | 34.6 (+15%) | 37.5 (+25%) |
Key Benefits at a Glance:
- Improved Cooling: Thanks to its uniquely low viscosity, NYTRO® BIO 300X provides exceptional cooling, which can slow cellulose aging by 2 to 4 times.
- Capacity Increase: The continuous load capacity of the tested transformer was successfully increased by 25% compared to its original nominal rating (from 30 to 37.5 MVA).
- Cost Efficiency: By refurbishing transformers with NYTRO® BIO 300X, utilities can unlock unused performance potential and save up to 200,000 EUR/MVA compared to new installations.
NYTRO® BIO 300X is the true sustainable choice for modernizing the power grid, helping to achieve energy transition goals efficiently.
Local Availability in Switzerland
Wetraoil GmbH is the local distributor for Nynas and supplies all grades directly from its warehouse in Switzerland for a reliable insulating oil supply.
