VOLTESSO

Mobil Industrial, Canada

Product Description

VOLTESSO™ brand insulating oils are formulated from high quality basestocks and select additives that provide excellent low temperature performance and resistance to oxidation and sludge formation in electrical service. These high quality electrical insulating oils are designed and manufactured to provide cooling and to help insulate transformer components against electrical corona and arching.

 

VOLTESSO 35 is recommended for use in power transformers, especially those subject to cold start-up, or have forced oil cooling, including associated load tap changers, switches and circuit breakers that operate at ambient temperatures below -25°C. Voltesso meets Canadian Standards Association C50-08 specifications for Class A, Type I oils.

 

Features and Benefits

 

Features

Advantages and Potential Benefits

Excellent low temperature fluidity

Improves circulation and heat transfer and allows operation at low temperatures in remote locations

Good insulating properties

Ability to withstand high levels of electrical field strength while helping to prevent corona discharge and arcing

Control of copper corrosion

Helps to prevent the formation of corrosive copper sulphides

 

Applications

     •  In oil filled electrical equipment where the transformer oil is used as an insulating medium including transformers, load tap changers, switches, circuit breakers, high voltage capacitors and lamp ballasts

     •  In some EDM (electrical discharge machines) as a coolant and an insulator between the charged electrodes

 

Specifications and Approvals

 

This product meets:

35

Canadian Standards Association CSA C50-08, Class A, Type I

X

 

Properties and Specifications

Property

35

ASTM Color, ASTM D1500

0.5

Aniline Point, °C, ASTM D611

63

Corrosive Sulfur, Procedure B, Rating, ASTM D1275

Non-Corrosive

Density @ 15 C, kg/l, ASTM D4052

0.876

Dielectric Breakdown, Impulse Conditions, 25 C, Needle Neg. to Sphere Grounded, 25.4 mm Gap, kV, ASTM D3300

145

Dielectric Breakdown, KV, 2.03 mm, kV, ASTM D1816

35

Flash Point, Cleveland Open Cup, °C, ASTM D92

145

Gassing Tendency, µl/min, ASTM D2300

30

Inhibitor, wt%, ASTM D2668

0.08

Interfacial Tension, 25 C, mN/m, ASTM D971

42

Kinematic Viscosity @ -40 C, mm2/s, ASTM D445

1800

Kinematic Viscosity @ 0 C, mm2/s, ASTM D445

42

Kinematic Viscosity @ 100 C, mm2/s, ASTM D445

2.1

Kinematic Viscosity @ 40 C, mm2/s, ASTM D445

7.6

Neutralization Number, mgKOH/g, ASTM D974

0.02

Oxidation Stability, Acid Number, 164 h, mgKOH/g, ASTM D2440

0.5

Oxidation Stability, Acid Number, 72 h, mgKOH/g, ASTM D2440

0.04

Oxidation Stability, Sludge, 164 h, %, ASTM D2440

0.2

Oxidation Stability, Sludge, 72 h, %, ASTM D2440

0.01

Polychlorinated Biphenyls, ppm, ASTM D4059

<1

Pour Point, °C, ASTM D97

-46

Power Factor, 60 Hz, 100 C, %, ASTM D924

0.5

Water, ppm, ASTM D1533

35

 

Health and Safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @ http://www.msds.exxonmobil.com/psims/psims.aspx

All trademarks used herein are trademarks or registered trademarks of Exxon Mobil Corporation or one of its subsidiaries unless indicated otherwise.


11-2019

Imperial Oil

Petroleum and Chemicals Division
Lubricants and Specialties
240 Fourth Ave SW
C. P. 2480, Station M
Calgary AB T2P 3 M 9

1-800-268-3183

Typical Properties are typical of those obtained with normal production tolerance and do not constitute a specification. Variations that do not affect product performance are to be expected during normal manufacture and at different blending locations. The information contained herein is subject to change without notice. All products may not be available locally. For more information, contact your local ExxonMobil contact or visit www.exxonmobil.com
ExxonMobil is comprised of numerous affiliates and subsidiaries, many with names that include Esso, Mobil, or ExxonMobil. Nothing in this document is intended to override or supersede the corporate separateness of local entities. Responsibility for local action and accountability remains with the local ExxonMobil-affiliate entities.