PD Locating
“The power industry’s most capable and advanced partial discharge test equipment and services.”
Online PD Diagnostics – Tier II
Multi-channel 6 ,12 channels
High sampling rates up to 100MHz
Portable Battery-Powered Unit
Locate and characterize PD insdie oil-filled Transformers, Cables
Substations, GIS, Switchgear
3D triangulation PD inside of transformers
Acoustic and Electromagnetic Source Localization
Hardware
Sensor
UHF Sensor
UHF Sensor – Electromagnetic Waves (EM) is emitted when PD occurs. The UHF sensor is a special antennae with a response range from 300MHz to 1.5GHz. virtually all types of partial discharge have an emission in this range. The UHF sensor is the most versatile PD sensor.
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HFCT Sensor
HFCT sensors are used to measure energy which is induced onto the grounds during a partial discharge activity. High Frequency Current Transformers are a reliable method to measure induced PD signals on the grounds
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Acoustic Contact (AE)
Acoustic Contact Probe has a response from 20kHz – 300kHz. When PD occurs in a dense insulation medium such as oil or SF6, the acoustic emission attenuates at a high frequency which is inaudible and also will not travel through air. These acoustic sensors are highly sensitive. Acoustic PD testing is a powerful, sensitive, and reliable method of discovering and characterizing PD activity in oil-filled and SF6 insulated power apparatus.