End-to-End Monitoring Systems Feeds Situational Awareness

Historically, substation assets have been loaded beyond nameplate ratings and the need to accommodate these emergency, or contingency, conditions are best served using End-to-End electrical apparatus monitoring systems.


By Brian Sparling, SMIEEE Dynamic Ratings, Senior Technical Advisor
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For many years the limit for normal apparatus loading was based on the maximum nameplate rating or an arbitrarily set value, called ‘the red line’.

On-line monitoring of power transformers and circuit breakers for condition assessment has gained popularity over the past twenty-five years, the typical technology adoption period, from concept to commercial reality in the electric utility industry.

What are the benefits of implementing End-to-End monitoring of power transformers and
circuit breakers?

  • Provides Situational Awareness of electrical assets operating closer to their
    capacity without compromising safety or reliability.
  • Fully optimize real-time substation loading/overloading based on actual site conditions, including asset condition or operating modes.
  • Assist in making intelligent decisions about load management based on actual circumstances.
  • Forecast (predict) operating conditions used to facilitate condition-based maintenance (CBM) programs or agency reporting (such as environmental reporting of SF6 release).
  • Collect operational and accumulated loss of life data to enable estimation of the residual.

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