SubsTech     
SubsTech     

to Transformer oils (insulating oils)
to Properties of fluids

Silicon transformer oil

(submitted by the website administration)

Silicon transformer oil
Polydimethylsiloxane based fluid
Property Value in metric unit Value in US unit
Density at 60°F (15.6°C) 0.960 *10³ kg/m³ 59.9 lb/ft³
Kinematic viscosity at 68°F (20°C) 55 cSt 55 cSt
Kinematic viscosity at 212°F (100°C) 15 cSt 15 cSt
Fire point min.350 ºC min.662 ºF
Pour Point max.-50 ºC max.-58 ºF
Flash point min.300 ºC min.572 ºF
Autoignition point 435 ºC 815 ºF
Specific heat capacity 1510 J/(kg*K) 0.360 BTU/(lb*ºF)
Thermal conductivity at 20ºC (68ºF) 0.15 W/(m*K) 1.019 BTU*in/(hr*ft²*ºF)
Thermal expansion at 20ºC (68ºF) 10.4*10-4 ºCˉ¹ 5.8*10-4 in/(in* ºF)
Breakdown strength 50 kV 50 kV
Dielectric dissipation factor at 90ºC (194ºF) max.0.001 max.0.001
Permitivity at 20ºC (68ºF) 2.7 2.7

Related internal links

silicon_transformer_oil.txt · Last modified: 2023/12/14 by dmitri_kopeliovich
Promote in SubsTech       Creative Commons License Except where otherwise noted, this work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License