Partial discharge testing and monitoring
Partial discharges cause insulation defects and eventual failure in your electrical equipment
Reliable condition assessment
Partial discharge (PD) is considered one of the major contributors to the degradation and failure of insulation systems in electrical equipment.
Compared to other dielectric diagnostic methods, PD measurement and analysis allow you to effectively and reliably assess the insulation condition of a number of high-voltage assets. They are performed during factory acceptance, on-site commissioning and routine maintenance testing to detect insulation defects and assess risks.
Timely corrective action
Since PD activity is often present well in advance of insulation failure, PD measurement and analysis allow you to make informed decisions regarding the timely repair or replacement of equipment to ensure operation reliability.
Learn more about partial discharge
Find out more about partial discharge measurement and analysis by watching the videos and reading the articles on this page. You can also find a PD measurement and analysis solution, register to attend OMICRON Academy courses for hands-on PD training, and contact us with any PD-related questions you have.
Watch our videos about PD measurement and analysis
Partial discharge testing on power cables
Learn about the importance of partial discharge testing (PD testing) on medium-voltage (MV) and high-voltage (HV) electrical power cables.
Partial discharge testing on power transformers
Learn about the importance of partial discharge testing (PD testing) on power transformers.
Partial discharge testing on rotating electrical machines
Learn about the importance of partial discharge testing (PD testing) on rotating electrical machines, such as generators and electrical motors.
What is Partial Discharge?
Partial discharge, or PD, causes insulation to progressively deteriorate, which can lead to breakdown and failure in electrical assets.
Synchronous Multi-Channel Partial Discharge Measurement
Fully digital multi-channel PD measurements are performed synchronously to gather more information about PD activity in less time for advanced analysis.
Partial Discharge Measurement Noise Suppression
Electrical noise can interfere with PD measurements, but it can be eliminated using advanced methods of noise suppression to ensure reliable results.
Partial Discharge Analysis: Fault Detection with 3PARD
The 3PARD diagram helps to separate noise and different PD sources from each other for accurate defect detection.
Read our articles about partial discharge detection
The importance of partial discharge measurement and monitoring
Read our white paper to learn more about PD testing, including:
- What is partial discharge?
- The importance of measuring PD
- Why, when and how PD is measured
- What type of PD analysis system is recommended
WHAT IS PARTIAL DISCHARGE?340 kB
HOW TO MEASURE PARTIAL DISCHARGE?358 kB
PARTIAL DISCHARGE MEASUREMENT COUPLING METHODS438 kB
ADVANCED NOISE SUPPRESSION TECHNIQUES0.97 MB
DIFFERENTIAL PARTIAL DISCHARGE MEASUREMENTS554 kB
HOW TO ANALYZE PARTIAL DISCHARGE456 kB
PD MEASUREMENTS ON POWER TRANSFORMERS567 kB
PD MEASUREMENTS ON ROTATING MACHINES688 kB
PD MEASUREMENTS ON POWER CABLES515 kB
It is highly important to identify any developing PD defects early on, so that you can take necessary corrective action.
Meet our PD testing solutions for your electrical assets
Meet industry standards
Reliable noise filtering
How does partial discharge monitoring play a role?
On-line PD monitoring systems allow asset managers to continuously collect a vast amount of information without interrupting normal service. These PD monitoring systems record insulation condition data under real load conditions.
Continuous on-line PD monitoring solutions
OMICRON provides you with:
- Extensive knowledge in PD measurement and analysis
- Innovative PD testing and monitoring solutions
- Experienced hands-on PD training at OMICRON Academy
- Dedicated 24/7 expert technical support
Talk to us about PD testing and monitoring