POWERMIGHT Silicone Transformer Oil

POWERMIGHT Silicone Transformer Oil is a high-performance dielectric fluid formulated specifically for use as a dielectric coolant in high-voltage, liquid-filled transformers.

POWERMIGHT Silicone Transformer Oil

POWERMIGHT Silicone Transformer Oil is a high-performance dielectric fluid formulated specifically for use as a dielectric coolant in high-voltage, liquid-filled transformers. Manufactured from 100% polydimethylsiloxane (PDMS) silicone fluid (CAS No. 63148-62-9), POWERMIGHT Silicone Transformer Oil offers a viscosity of 50 cSt at 25°C and contains no additives, including thermal stabilizers.

To maximize dielectric performance and fluid stability, POWERMIGHT Silicone Transformer Oil is dehydrated to less than 50 ppm water content.

The fluid’s exceptional thermal stability and high flash point make POWERMIGHT Silicone Transformer Oil an excellent alternative to conventional transformer fluids, particularly for indoor installations and transformers located near buildings or other structures where fire safety and thermal stability are critical considerations.

POWERMIGHT Silicone Transformer Oil provides a dependable, environmentally preferable alternative to PCB-containing askarel fluids and is designed to deliver long-term dielectric and cooling performance in demanding transformer applications.

Features & Benefits

High dielectric strength fluid
High flash point > 300°minimal flammability and high temperature stability
Low Viscosity change, low volatility
High thermal oxidation resistance
Chemically inert

Typical Properties

Parameter

Unit

Value

Physical Properties

-

Appearance

-

Crystal clear fluid

Density @ 25°C

kg/dm³

0.96 Viscosity @ 25°C

mm²/sec

50 (cSt)

Water content

ppm

50 Refractive Index

-

1.404 Electrical Properties

-

Dielectric Breakdown Voltage

kv

50 Permittivity @ 25°C, 50Hz

-

2.7 Dissipation Factor @ 25°C, 50Hz

-

0.0001

Volume Resistivity @ 25°C

ohm.cm

1.0 × 10¹⁴

Thermal Properties

-

Flash Point (Open Cup)

-

>300°C / 572°F

Fire Point (Open Cup)

-

>370°C / 698°F

Specific Heat

kJ/kg.K

1.51 Specific Heat

cal/gm °C

3.7 × 10⁻⁴

Thermal Conductivity

W/(m.K)

0.151 Oxygen Index

IDI OI

21.4 Coefficient of Expansion

cc/cc/°C

10.55 × 10⁻⁴

IEC & ASTM Specifications:

POWERMIGHT Silicone Transformer Oil meets both International Electrotechnical Commission IEC 836 “Specifications for silicone liquid for electrical purposes” (Silicone Fluid Type T-1) and

ASTM D 4652 “Silicone Fluids for Electrical Insulation specifications for repair or top-off of existing liquid-filled units. These standards cover both the physical and electrical properties of fluid suitable for dielectric applications.POWERMIGHT Silicone Transformer Oil has a fire point exceeding the requirements of these documents and is within the IEC 1100 class with lowest heat of combustion. Silicone Transformer Oil presents a much lower fire hazard than other transformer fluids. It is difficult to ignite, but if ignited, it will produce less heat and smoke. It will virtually extinguish itself when external heat source is removed.

Silicone Fluids are exempt from Federal VOC regulations, including California (CARB) and OTC regulations. They are HAP-free and do not contribute to ozone-depletion and global warming. In addition, they meet RoHS Compliancy.

Safety Data Sheet (SDS)

Technical Data Sheet (TDS)

Readily available in 55-gallon drums

55-gallon drums

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Signal Fluid Solutions 3403 Niki Way Riverside, CA 92507

951.784.3900

[email protected]

POWERMIGHT Silicone Transformer Oil