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Offline Vs. Online Circuit Breaker Testing

Aug 26, 2024

High voltage circuit breakers are critical components in electrical power systems, designed to protect and control the flow of electricity. Ensuring their reliability and performance is paramount to maintaining the stability and safety of power grids. Traditional offline testing has been the standard for assessing the condition of these breakers, but advancements in technology have introduced continuous online testing as a viable and often superior alternative. This blog aims to explore the benefits of continuous online testing compared to offline testing for high voltage circuit breakers, providing utility personnel with a clear understanding of how each method impacts operational downtime, labor requirements, and data quality.

 

OFFLINE TESTING

ONLINE TESTING


Utilities must de-energize, execute load transfer and switching operations, and isolate assets – reducing overall load capacity. This process can be complex, involving careful coordination and expensive equipment to maintain service reliability and safety.

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The Optimizer3 allows for real-time, continuous monitoring without asset shutdown or load transfer and switching. Online testing maintains uninterrupted service and capacity continuity, while avoiding the complexities and operational downtime required for offline testing.

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Offline testing involves significant manual labor, including constant truck rolls and travel time for the deployment of skilled technicians to various sites. This leads to the high overhead costs of maintaining a mobile maintenance workforce as well as heightened personnel safety exposure.

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Remote data collection reduces the need for frequent site visits and enables more strategic allocation of work hours. This means personnel can focus on targeted maintenance only when needed, rather than routine testing, optimizing work ours and reducing onsite exposure.

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Data collected during offline testing may lack accuracy as it doesn’t capture the equipment’s performance under normal operating conditions. Offline tests often simulate conditions that may not fully replicate the stresses and dynamics encountered in real-world service environments.

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Online testing produces high-fidelity performance data under real operating conditions, which is essential for accurate diagnostics. By continuously monitoring equipment behavior, it enables the detection of subtle changes over time to facilitate predictive maintenance.

For about the cost of a single offline test,  an INCON® Optimizer3 Circuit Breaker Monitor can  be deployed to deliver real-time performance metrics  and enable proactive maintenance planning.

 


 

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INCON® OPTIMIZER3 CIRCUIT BREAKER MONITOR

The INCON® Optimizer3 Circuit Breaker Monitor is an online continuous performance monitor for high voltage circuit breakers, designed to facilitate condition-based maintenance with real-time performance and health data.

With early detection of circuit breaker deficiencies, the Optimizer3 enables utilities to proactively address issues before they escalate, saving both time and resources while helping to boost reliability. Deploy maintenance with intelligence, defer offline testing, limit truck rolls, and lower overall maintenance costs with the Optimizer3

Extend Circuit Breaker Life

Defer or Eliminate Offline Testing

Employ Condition-Based Maintenance

 

 

LEARN MORE ABOUT OPTIMIZER3

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