Comprehensive Partial Discharge Surveys by EA Technology Australia
Partial Discharge Surveys
Understanding the condition of your electrical assets is crucial for mitigating risks and enhancing future performance and reliability. EA Technology's Partial Discharge (PD) surveys, conducted worldwide by our seasoned professionals, utilise cutting-edge technology for non-intrusive testing and monitoring of your critical assets.
Our surveys offer a 'traffic light' status report with actionable recommendations, allowing you to make informed decisions on maintenance and management based on actual asset conditions.
Why Conduct a Partial Discharge Survey?
Identifying and addressing Partial Discharge activity is essential. Over 85% of electrical substation failures, which can adversely affect the equipment and lead to an interruption of service, are attributed to PD. Utilising advanced test methods, including online PD testing, provides a comprehensive understanding of the health of insulation systems and their impact on your assets under various voltage stresses.
Benefits of Choosing Our Partial Discharge Surveys:
- Prevent PD-related issues from escalating into failures.
- Acquire critical insights into the health of your assets and the risks associated with their failure.
- Plan maintenance and replacements more effectively with data-driven insights.
- Enhance the safety and reliability of your network.
- All testing complies with health and safety standards, including the HSG 230.
Features of Our Partial Discharge Surveys:
- Advanced instruments for accurate Partial Discharge measurement and analysis, including Ultrasonic activity, Transient Earth Voltage (TEV), and Radio Frequency (RF) emissions detection.
- Expert analysis by engineers with over 50 years of experience in PD surveys.
- Reliable reporting, leveraging a database of over 20,000 test results for precise conclusions.
Our Partial Discharge Survey Services Include:
Comprehensive Condition Assessment with PD Survey
Partial Discharge surveys can be carried out on:
- Indoor metal clad switchgear
- Outdoor switchgear
- Cable termination boxes of transformers
Other methods must be utilised to detect PD in cables or the windings of transformers/motors. Should the need arise, EA Technology has the expertise to deliver these customised test to meet your requirements.
PD surveys can be delivered as part of a larger package of condition assessment measures, such as oil sampling of transformers for dissolved gas analysis purposes and trip profiling of circuit breakers. Get in touch to find out more!

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