Naftas ® Lubricants

Transformer oil

Naftas® Transformer Oil is a highly oxidation-resistant oil that can be used in a variety of electrical systems. It is designed as an insulator and cooling medium for electrical equipment and has good heat transfer performance for cooler operation and longer service life. It is a highly refined electrical insulating oil for use in oil-immersed transformers, capacitors, tap changers, and circuit breakers where the equipment manufacturer specifies a Type II inhibitor oil that meets the requirements of ANSI / ASTM D3487-09.

Products are packed in barrels with a capacity of 205 L

Transformer oil

The perfect oil for all kinds of transformers

Key features:
Excellent insulating properties
High dielectric strength
Low power factor
Resists oxidation and deposit formation
Excellent low-temperature properties
Compatible with materials used in transformers
Does not contain any PCBs

Available package

Mineral ISO Grade: 10

Typical Properties
ISO Grade	10
Specific Gravity @ 60°F	0,887
Density, lbs/gal @ 60°F	7,39
Color, ASTM D1500	0,5
Flash Point (COC), °C (°F)	160 (320)
Pour Point, °C (°F)	-60 (-76)
Viscosity
cSt @ 40°C	9,6
cSt @ 100°C	2,3
SUS @ 100°F	60,3
SUS @ 210°F	34
Viscosity Index	19
Acid Number, ASTM D974, mg KOH/g	<0.01
Aniline Point, ASTM D611, °C (°F)	75 (167)
Corrosive Sulfur, ASTM D1275B	Non-corrosive
Dielectric Breakdown Voltage (2)
Disc Electrodes, 60 Hz, ASTM D877, kV	40
Oxidation Stability, RPVOT, ASTM D2272, minutes	280
PCB Content, ASTM D4059, wt %	None
Power Factor @ 60 Hz, ASTM D924
@ 25°C (77°F), %	0,003
@ 100°C (212°F), %	0,074
Water, ASTM D1533, wt %	0,0015

Licenses & Approvals

Transformer Oil meets the requirements of the following industry and OEM specifications:
ANSI/ASTM D3487-09 Type II Inhibited Oil
British Standard BS 148, Class 1A
Federal VV-I-530A, Class II Specification
GE A13A3A2 (10CA)
IEEE
International Standard IEC 60296
NEMA Type II (obsolete)
Westinghouse Specification PDS 55822AG