Transformer oil and other insulating liquids suffer from electrical and mechanical stresses while a transformer is in operation. In addition there are contaminations caused due to chemical interactions with windings and other solid insulations, catalyzed by high operating temperature. As a result the original chemical properties of Transformer Oil changes gradually, rendering it ineffective for its intended purpose after many years. Hence this oil has to be periodically tested to ascertain its basic electrical properties, and make sure it is suitable for further use or initiate necessary actions like filtration/regeneration.
Transformer Oil is not only subject to its own degradation, but is also a carrier of gasses emanated during arcing or flashovers between paper and winding insulations. Transformer Oil Testing and Analysis provides important information regarding any such incipient faults, without the need to pull down the equipment from its running condition.
Oil Testing Packages
Establish the time-zero condition of your transformer with our Signature package.
The recommended Transformer oil tests in this package include:
- Dissolved Gas Analysis
- Water content
- Furan in oil
- Inhibitor Content
- ASTM package
- PCB analysis
- Power Factor 27°C and 90°C
Fault Determination »
This basic package is the first step when trying to locate and identify a specific transformer problem. The results from these Transformer oil tests allow you to determine what other tests need to be performed in order to have a clear understanding of your transformer’s actual condition.
- The recommended tests in this package include:
- Dissolved Gas Analysis
- Furan content
- Water content
- Metals in Oil
Routine Test »
It is recommended to perform routine tests at least once a year in order to monitor the health of your transformers. Faults can occur at any stage of your transformer’s life and evolve rapidly. Testing your transformers on a regular basis will allow you to detect any unforeseen change in the condition of your transformers.
- Dissolved Gas Analysis
- Furan Content
- BIS 1866 (8 tests)*
Water Content, Tan Delta, Resistivity, Acidity, IFT, Flash Point, Sludge, Dielectric Strength
Factory Acceptance »
Throughout our three decades of existence, Industrial Tests has provided Dissolved Gas Analysis (DGA) services to most major transformer manufacturers. When ordering a new transformer, specify Industrial Tests for heat run DGA test results.
The text below can be inserted in the appropriate clause of your specifications for new, refurbished or repaired transformers:
FACTORY TEST RESULTS
The appropriate low level Dissolved Gas Analyses (DGA) for this transformer shall be performed during heat run factory tests. All Transformer oil analysis tests shall be performed by Industrial Tests, Inc.
Pre Commissioning »
When a new transformer is commissioned, Industrial Tests recommends that the following test package be performed immediately.
The recommended tests in this package include:
Dissolved Gas Analysis
ASTM Package
Oxidation Inhibitor
Water content
Power Factor 27°C and 90°C
Furan Content
