Corrosive Sulphur

in Insulating Oil Portable Test Kit

 
Corrosive Sulphur predicta Unit

A1-Envirotech have now produced the very first Portable Corrosive-Sulphur Test Kit, CS1000, following ASTM D1275/B and IEC 62535 procedures, allowing inexpensive, easy-to-follow, compliant testing.

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Key Features

  • "Conforms to new method IEC 62535 and ASTM D1275/B"
  • No Sample Preparation:- Individually Pre-cleaned, pre-cut and hermetically pre-sealed copper/paper (IEC 62535) and copper (ASTM D1275/B) sample strips for simple and effective sample handling.
  • Easy to use: Simple "step by step" Instructions for both tests included
  • All inclusive kit format enabling you to start with 20 tests of each type.
  • Specifically designed automated heating block for 8 or 16 samples:- "prepare and walk away" throughput.
  • Protective IP67 rated Peli Case.
Corrosive Sulphur predicta case

Catastrophic effects of Corrosive Sulphur:

Catastrophic effects of Corrosive Sulphur www.corrosivesulphur.com
 
Corrosive Sulphur Paper Covered Copper

Easy-to-Re-order, Test Re-fill Packs Once the initial set of 20 test samples have been used, simply order more copper/paper and/or copper-only, test packs from www.corrosivesulphur.com

Corrosive Sulphur Portable Detection Kit (CS1000)

In recent years a number of failures in transformers and reactors have occurred due to copper sulphide formation. Failures affected varying classes of equipment, usually when operated at elevated temperatures (but within limits) and normally without warning in commonly used oil tests.

Every Utility has "Never Clarified Transformer Failure" cases in their statistics.

Due to the diversity of copper sulphide appearance, it is highly likely that certain cases were not properly identified. A reason for such failures could be due to arcing between adjacent disks or conductors of a winding, due to the formation of deposits of copper sulphide on the cellulosic insulating paper.

Various forms of sulphur can be present in transformer oil at sub–% levels, such as mercaptans, thiols, thiopens, disulphides and polysulphides, with a high number of these sulphur species being highly reactive.

Although these organo sulphur compounds are antioxidants, under certain conditions such as lack of oxygen, high load and high operating temperature, they may change to corrosive sulphur and react with copper. This is potentially corrosive sulphur and standard tests such as ASTM D1275/B, DIN 51353 and ISO 5662 are unable to detect it.

Up until now expensive standard laboratory testing such as ASTM D1275/B and more recently IEC 62535 were the only route to determine the presence of potentially corrosive sulphur in the oil.