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Kelman Transfix - Click to view details

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Kelman Transfix - Click to view details Multi Gas System Transformer Condition Monitoring System

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Transfix_Brochure.pdf (1.18 MB)
Full on-line DGA & moisture

Product Overview

Knowledge of the condition of transformers is essential for all electrical networks and on-line monitoring of transformers is an increasingly vital component of successful asset management programs. The information provided by multi-gas on-line DGA allows valuable asset capabilities to be maximised and expensive failures to be avoided.

Dissolved Gas Analysis (DGA) and moisture measurement of the insulation oil are recognised as the most important tests for condition assessment of transformers. Traditionally performed in a laboratory environment, the TRANSFIX now allows for advanced full diagnostic level gas-in-oil and moisture monitoring on a user schedulable basis.

Key Benefits

  • Remote insight into transformer condition
  • Faults can be detected in their infancy
  • Transformer load and output can be optimised safely
  • Discrete measurement of all fault gases facilitates full diagnostics
  • Transformer ageing can be calculated
  • Fault type can be classified from results
  • Aids condition based and predictive maintenance strategies
  • Available with AC or AC/DC power supply


Multi-gas DGA has traditionally been confined to infrequent off-line laboratory analysis, forming part of time based maintenance strategies. Globally the average age of transformers continues to increase, whilst in comparison to historical experience a larger percentage of new transformers encounter faults in their early years of operation. This means the possibilities of rapid aging, unplanned outages and even catastrophic failure between off-line tests also increase, leading many asset owners to adopt on-line DGA monitoring equipment more suited to condition based / predictive maintenance strategies.

The TRANSFIX offers discrete on-line DGA and moisture monitoring for transformers and other oil insulated filled electrical equipment. Utilising photo-acoustic spectroscopy (PAS) measurement technology well suited to field application, providing laboratory challenging levels of precision and repeatability. Full 9 gas DGA sampling can be performed as often as every hour including monitoring of the 7 key fault gases employed in all common diagnostic methods and TRANSFIX offers full gas in oil trending, analysis and diagnostic capabilities through its close integration with GE’s powerful Perception software suite and/or users own software, historian and SCADA systems. Capable of monitoring all sizes of transformers TRANSFIX is most widely employed for monitoring large, system critical or compromised transformers with a view to extending asset life, preventing unexpected failure and operating on a condition based/predictive maintenance schedule.

  • GSU transformers
  • Mission critical industrial transformer
  • Transmission transformers
  • HVDC station transformers
  • On load tap changers
  • Circuit breakers
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