Dielectric Fluid; Type Ii Mineraloil; High Fire Pointdielectric Fluid - DAELIM GREEN EP TECH Operation & Maintenance Manual

7. Dielectric Fluid

7.1 Type II MineralOil

Padmount transformers filled with mineral oil that complies with ASTM D-3487, TYPE II.
TYPICAL PHYSICAL AND CHEMICAL PROPERTIES
pH: N/A PCB: No
Auto ignition temperature: > 315C°
Relative density (H2O = 1): 0.89
Pour point: -54°C
Evaporation rate (butyl acetate = 1): N/A
Volatile organic compounds: < 0.001 g/L
Miscibility: mixes with other dielectric fluids except silicone
Appearance and odor: Clear bright liquid with Mineral odor
7.2 High Fire Point Dielectric fluid
Padmount transformers filled with High Fire Point Dielectric fluid typically use Envirotemp FR3 fluid which
complies with ASTM D-6871
FR-3 is a natural ester derived from renewable vegetable oils – providing improved fire safety and
environmental benefits that are superior to mineral oil.
TYPICAL PHYSICAL AND CHEMICAL PROPERTIES
pH: neutral PCB:No
Auto ignition temperature: 401 − 404°C
Relative density (H2O = 1): 0.92
Pour point: -18 to -24°C
Evaporationrate (butyl acetate=1):nil
Volatile organic compounds: < 0.001 g/L
Miscibility: mixes with other dielectric fluids except silicone
Appearance and odor: clear light-green liquid with slight vegetable oil odor
No.4 Business Building-2707, China Central Place
Chaoyang District, Beijing-100021, China
北 京 大 林 绿 源 环 保 科 技 有 限 公 司
BEIJING DAELIM GREEN EP TECH CO., LTD.
closed cup flash point: >145°C
Boiling point:>238°C
Vapor pressure (mm Hg): < 0.01 @ 20°C
Vapor density (air = 1): N/A
Solubility in water: negligible; < 0.1%
Viscosity: 9.3 TO 9.5 CsTat 40°C
Closed cup flash point: 320 − 330°C
Boiling point: >360°C
Vapor pressure (mm Hg): < 0.01 @ 20°C
Vapor density (air = 1): N/A
Solubility in water: negligible; < 0.1%
Viscosity: 32 − 34 CsT at 40°C
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