Oil Analysis Australia – Expert Transformer Oil Testing
Ensure Transformer Reliability with Professional Oil Testing
EA Technology Australia offers expert oil analysis services, ensuring the reliability and performance of transformers and other electrical assets. Our transformer oil analysis in Australia helps detect contaminants, degradation, and potential failures before they become costly problems.
Why Oil Analysis is Essential for Transformer Health
Our transformer oil analysis in Australia helps:
- Identify abnormal electrical or thermal activity
- Assess paper insulation degradation, a key indicator of transformer failure
- Determine the transformer’s lifecycle stage using the Health Index
- Enable cost-effective maintenance, refurbishment, and replacement planning
Key benefits of Transformer Oil Analysis
- Provides a detailed internal assessment of transformer health
- Helps predict failure probability and end-of-life estimates
- Detects early-stage degradation before it leads to costly failures
- Supports proactive maintenance and replacement strategies
- Offers low-cost testing with high return on investment
Oil Diagnostic tests
EA Technology offers a wide range of analytical specification tests, coupled with expert interpretation and reporting systems. Typical testing on transformer units includes:
| Dissolved Gas Analysis (DGA) | IEC 60567 |
| Oil Quality | |
| Moisture | IEC 60814 |
| Acidity | IEC 62021 |
| Breakdown Voltage Strength | IEC 60247 |
| Furan Analysis (Paper Insulation Assessment) | IEC 61196 |
| PCB Analysis | IEC 61619 |
| Dissipation Factor (Power Factor) |
IEC 60247 |
| Interfacial Tension (IFT) | ASTM D971 |
| Viscosity | |
| Density (Specific Gravity) | ASTM D1524 |
| Colour & Appearance | ASTM D1500 |
EA Technology can also offer an additional range of bespoke testing such as:
| Corrosive Sulphur | IEC 62535 |
| DBDS | IEC 62697 |
| Inhibitor Content (% DBPC) | IEC 60666 |
| Flash Point and Pour Point |
These tests allow EA Technology to build up a bespoke testing programme that aims to meet all the specific requirements of our clients.
For more information on our diagnostic tests follow the links below.
Health Index Assessment for Transformers – Moving Towards a Condition Based Strategy
EA Technology has extensive experience of working with owners and operators of high voltage equipment to understand degradation and failure processes. One aspect of this work has been the development of Health Indices.
Health Indices for high voltage equipment combine relevant information on assets to derive a single number that gives an indication of overall degradation and proximity to end-of-life.
Health Index and Transformer Oil Analysis (Advanced Assessment)
By combining the oil analysis results with detailed background information, on-site survey results and unrivalled sector experience, EA Technology can produce a full Health Index assessment for each transformer. This information can then be used to make strategic investment decisions regarding repair, refurbishment and replacement programmes.
Transformer oil analysis can help in identifying which transformers could benefit from life extension measures and alert operators to potential problems before they lead to failure.
By moving from a time-based maintenance and replacement programme to a condition-based strategy, you can bring considerable cost and efficiency savings, while also increasing the reliability of supplies.
The Transformer Health Index Assessment Includes the Following Key Areas:
- DGA, Oil Quality and FFA analysis
- Current Health Index and probability of failure
- 10 year future Health Index and probability of failure
- Years to End-of-Life (EOL) assessment
- Graphical depiction of Health Indices for the transformer population
- Full written report of transformer details, results, discussion and recommendations
- Inclusion of on-site survey results, Partial Discharge Survey, Thermographic Survey and more
Download an example report on the link below.
Oil Diagnostic Suites for Transformer Oil Diagnostics:
The above standard testing is offered in specific diagnostic suites designed to provide the maximum condition information on the transformers. The standard test suites are designed for individual samples to deliver a routine set of oil analysis at low cost.
The health index suites are designed to provide maximum information on the oil analysis results, interpretation and integration into asset management techniques.
Download our information on our testing packages below.
Related Services
For a complete electrical asset condition assessment, explore:
Get Expert Oil Analysis in Australia – Contact Us Today!
Ensure transformer reliability with EA Technology’s industry-leading oil analysis services in Australia.
Contact us now for a consultation.
Frequently Asked Questions (FAQs)
Q: What is transformer oil analysis?
A: Transformer oil analysis is a diagnostic process where oil from an oil-filled transformer is sampled and tested to assess the internal condition of the transformer (insulation, oil quality, potential faults) long before visible issues arise.
Q: Why is oil analysis important for transformer maintenance?
A: Because the oil carries information about the transformer's health. Oil analysis can detect abnormal thermal or electrical activity, degradation of internal insulation (paper insulation), contamination, moisture ingress, and other aging effects — helping to identify problems before they lead to failure.
Q: What kinds of tests are typically included in the oil-analysis service?
A: Typical diagnostic tests include:
- Dissolved Gas Analysis (DGA) — to detect gases produced by overheating, arcing, or electrical faults
- Moisture content measurement
- Acidity / oil quality parameters
- Dielectric breakdown (oil strength) / electrical insulation tests
- Furan (or furfuraldehyde) analysis — to assess the condition of the transformer's paper insulation
- Other optional analyses (e.g. PCB check, interfacial tension, density, contaminants) depending on the client’s needs.
Q: What is a “Health Index” — and how does oil analysis relate to it?
A: The Health Index is a metric developed by EA Technology that combines oil-analysis results (and optionally other inspection data) to give an overall indication of the transformer's condition, estimate its remaining life or failure probability, and support condition-based maintenance or replacement planning.
Q: What are the benefits of using transformer oil analysis over just time-based maintenance or reactive repairs?
A: Because it provides an early, accurate picture of internal asset health before failures occur, oil analysis supports proactive, condition-based maintenance — which helps avoid unplanned outages, extends asset life, reduces unnecessary maintenance, and optimises costs.
Q: How often should oil analysis be done?
A: The optimal frequency depends on factors like the transformer's age, loading history, environment, and criticality. Many operators integrate oil analysis into their periodic maintenance and condition-assessment programs to monitor changes over time and detect early signs of degradation. (Note: EA Technology can tailor the testing program to client requirements.)
