Power Diagnostix Systems GMBH
Power Diagnostix provides versatile partial discharge measurement instruments capable of performing a wide range of PD measurement tasks in a variety of environments. Applications supported include measurements and field tests on rotating machines, power transformers, gas insulated switchgear (GIS), instrument transformers, and power cables, among others. Long-term PD monitoring as well as standard laboratory measurements are supported.
Rotating machines
PD measurements on rotating machines help to identify problems such as slot discharges, loose wedges (bar vibrations), cracked and broken conductors, end winding surface contamination, insulation degradation, and collector ring and brush sparking, for example.
Transformers
On-line partial discharge measurements on power transformers require the installation of coupling devices using the capacitive tap of the transformer bushings.
The bushing couplers offer wide-band partial discharge signals as well as wide-band voltage measurements to analyse the transfer impedance.
GIS Measurement
Commissioning of gas-insulated switchgear (GIS) requires either a coupling capacitor or ultra high frequency (UHF) sensors, such as those used for on-line and off-line tests during normal operation.
Cable Diagnostic
A huge population of service-aged distribution class cables (medium voltage range) require advanced measurement techniques to assess the risk of failure and to maintain cable system availability. The Power Diagnostix partial discharge detector ICMcompact with the PD cable fault location option offers convenient field testing with 0.1Hz high-voltage sources, or resonant test sets (RTS).
quality control
Partial Discharge testing becomes more and more important as quality control test for any kind of insulated conductive parts, like bushings, CTs, VTs, motor coils, electronic transformers, etc. The flexible design of Power Diagnostix products enables customer specific solutions.