Arabol Transformer Oil

Transformer Oil formulated from highly refined naphthenic base oils for use in oil filled transformers and other electrical equipment.  Transformer Oil has excellent oxidation stability which limits the formation of sludge’s and deposits, preventing the fluids deterioration.

Transformer  Oil has high  dielectric strength  and low dissipation factors  that provides excellent insulating properties, providing improved cooling of transformer components.

Transformer Oil is recommended for use in oil filled transformers, switchgear, welders and other electrical equipment as a dielectric and coolant fluid. High viscosity index.

 ADVANTAGES

  •  Prolonged transformer life
  •  Rapid circulation
  •  Thermal and oxidation stable
  •  High dielectric strength
 

Typical Specifications:

Sr.

No.

Characteristics of transformer oil

 

1

Appearance

The oil is transparent & free from suspended matter or sediments.

2

Density Max

0.89 gm/cmat 29.50 C

3

Kinematic viscosity Cst at 270 C

27 Cst Maximum

4

Interfacial tension at 27C Newtons/M

0.04 Minimum

5

Flash point Pansky/marten (Closed)

148C Min.

6

Pour point

--6C Maximum

7

Neutralization value

a) Total acidity mg

 

0.03mg KOH/gm Max.

 

b) Inorganic acidity / Alkalinity

Nil

8

Corrosive Sulphur (In terms of classification of copper strips)

Non-corrosive

9

Electric strength (Break down voltage)

  1. New untreatedoil

  2. Aftertreatment

 

30kv Minimum (RMS) 60kv Minimum (RMS)

10

Dielectric Dissipation vector (Ten delta) at 900 C

0.002 Max

11

Specific resistance (Resistivity)

0

  1. at 90  C

0

  1. at 27  C

 

35x1012 Ohm-cm Minimum 1500x1012  Ohm-cm Minimum

12

Oxidation stability

  1. Neutralization value afteroxidation for 164hrs at 1000C

  2. Total sludge after oxidation for   164hrs at 1000C

0.40mg KOH/gm maximum 0.10% by weight maximum

13

Presence of oxidation inhibitor

The oil shall not contain anti- oxidant additives

14

Water content (PPM)

50 PPM Maximum

15

Ageing characteristics after accelerated ageing (open breaker method with copper catalyst

  1. Specific resistance(Resistivity)

    1. at 270C

    2. at 900C

  1. Dielectric Dissipation vector (Ten delta at 900C

  2. Totalacidity

  3. Total sludgevalue

 

2.5x1012 Ohm-cm Minimum 0.2x1012 Ohm-cm Minimum

0.2 Max

 

0.05mg KOH/gm max 0.05% by weight maximum

(Above characteristics are mean values given as an information)