NYCODIEL
NYCODIEL 1233
Biodegradable ISO VG 15 Dielectric Fluid. Delivers excellent low-temperature performance for all transformer types. Meets IEC 61039 O3 standards.
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NYCODIEL 1255
Biodegradable ISO VG 32 Dielectric Fluid. Meets IEC 61099 & IEC 61039 K3 standards. Suitable for all types of transformers. Approved for MR VCUTAP®, DEETAP®, and COMTAP® tap-changers.
Particularly recommended for environmentally sensitive applications, NYCODIEL® 1255 offers enhanced heat resistance, fire safety, and excellent low-temperature performance. Its outstanding environmental profile makes it an ideal replacement for mineral and silicone oils.
- 01 Meets IEC 61099 requirements
- 02 Excellent oxidation stability (IEC 61125 method C)
- 03 Meets IEC 61039 K3 fire safety class requirements
- 04 Biodegradability 72% (OECD 301B)
- 05 Not hazardous for the environment
- 06 MR VCUTAP®, DEETAP®, and COMTAP® tap-chargers approved
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Low temperature capability
With extra low pour point and low viscosity at low temperature, NYCODIEL® 1255 might
be used at temperatures as low as -40°C.
High moisture tolerance
With high saturation limits, NYCODIEL® 1255 can absorb large quantities of moisture without impacting breakdown voltage. It enables slower ageing of transformers, extension of cellulose insulation life, reduction of bubble evolution during overloads and of condensation during cool down.
Retro filling and compatibility
NYCODIEL® 1255 are fully compatible and miscible in all proportions with mineral oil, natural ester oils and other synthetic esters meeting the same specification but are not miscible with silicone oils. fluid is mineral oil, NYCO recommends that remaining content is less than 2%, to ensure keeping fire resistance properties (class K3).
| Properties | Unit | Typical result | IEC 61099 | Test method |
|---|---|---|---|---|
| Appearance | Limpid | Limpid | Visual examination | |
| Colour Alpha | 50 | max 200 | ISO 22111 | |
| Density at 20°C | kg/dm3 | 0.97 | max 1 | ISO 12185 |
| Kinematic viscosity at 100°C 40°C -20°C -30°C -40°C |
mm2/s | 5.1 27.2 1170 3650 14100 |
- max 35 max 3000 - - |
ISO 3104 |
| Pour Point | °C | -57 | max -45 | ISO 3016 |
| Flash Point PM | °C | 255 | min 250 | ISO 2719 |
| Flash Point COC | °C | 263 | ISO 2592 | |
| Fire Point | °C | 316 | min 300 | ISO 2592 |
| Inferior Heating Power | MJ/kg | 31.8 | ASTM D240 | |
| Water Content | mg/kg | 30 | max 200 | IEC 60814 |
| Acid Value | mg KOH/g | 0.01 | max 0.03 | IEC 2021-2 |
| Oxidation Stability Total Acid Total Deposit |
mg KOH/g % |
0.08 0.003 |
max 0.3 max 0.01 |
IEC 61125 method C |
| Breaking Voltage | kV | 75 | min 45 | IEC 60156 |
| Dielectric Dissipation Factor 90°C and 50Hz | 0.01 | max 0.03 | IEC 60247 | |
| DC resistivity at 90°C | GΩ.m | superior to 50 | min 2 | IEC 60247 |
| Relative Permittivity at 20°C | 2.98 | IEC 60247 | ||
| Thermal expansion coefficient | °C-1 | 8.3 10-4 | ||
| Heat Capacity at 20°C 90°C |
J/kg.K | 1923 2063 |
||
| Thermal Conductivity at 24°C 92°C |
W/m.K | 0.14 0.13 |
||
| Biodegradability, 28 days | % | 72 | OECD 301B |
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