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Transformer Oil Diagnostics

Transformer oil holds critical information on the condition of the transformer from thermal and electrical faults to contamination and degradation of the oil. Without monitoring, these conditions can take a toll on the life of a transformer.

Transformer oil analysis provides a highly accurate indication of the internal condition of a transformer. Diagnostic tests offer insights into:

Key benefits of Transformer Oil Analysis

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:

EA Technology can also offer an additional range of bespoke testing such as:

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.

Oil Diagnostics Data Sheet – Transformers

Quick Guide – Oil Test Information

Transformer Assessment Questionnaire (TAQ) 2015

Example Report – Tx Oil Diagnostics


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:

Download an example report on the link below.

Example Report – Health Index Assessment Tx Oil Diagnostics

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.

Quick Guide – Testing Suite Packages

Find out more about Oil Diagnostics

Oil Sampling

Switchgear Oil Diagnostics

To find out more about the Oil Diagnostics, contact us on:

+44 (0) 151 347 2313

sales@eatechnology.com