OMS 605 System

Portable on-line partial discharge diagnosis and monitoring system for various electrical assets

The OMS 605 is a portable, IEC 60270 compliant on-line partial discharge (PD) diagnosis and monitoring system designed for the periodic evaluation of the insulation condition in medium-voltage and high-voltage assets under load. All of the required hardware for periodic PD diagnosis and monitoring is contained in a wheeled case for easy transport to different locations. The OMS 605 can be used with a variety of capacitive and inductive PD sensors for the entire frequency range relevant to PD signals, including the ultra-high frequency range. Synchronous three-channel PD data acquisition ensures complete PD data acquisition. A fourth channel is available for an additional PD sensor or for noise gating hardware. Advanced noise and PD source separation techniques ensure reliable PD detection. The OMS 605 software visualizes the data and allows users to record live data streams and to conduct detailed post-analysis.

Key features

  • All-in-one solution for on-line PD diagnosis and monitoring
  • Easy to transport to different locations
  • Plug-and-play modules for fast system set-up
  • Compatible with a variety of PD sensors
  • Rugged design for reliable operation in industrial environments (IP65)
  • Advanced noise and PD source separation for reliable PD detection
  • Powerful software for PD data display and analysis


The OMS 605 is the perfect solution for service providers as well as test and maintenance engineers at manufacturers, utilities and industrial plants for performing periodic on-line PD diagnosis and monitoring in order to evaluate insulation condition in MV and HV assets, including:

  • Motors and generators
  • HV cables and their accessories
  • MV and HV switchgear
  • Power transformers 


Knowledge Base - Partial discharge measurement and analysis

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