Doble has been a trusted name of knowledge sharing and collaboration in the electric power industry for nearly a century. Join us for our upcoming webinars to learn more about the latest electric power trends to improve operational efficiency, reduce cost and increase reliability.

 

First Trip Circuit Breaker Testing & Analysis
Wednesday, March 2, 2016, 1:00-2:00pm US EST
Presented by: Jozef Levi, Principal Application Engineer

The majority of Circuit Breakers, especially high voltage circuit breakers above 169 kV, stay in the closed or open position for a very long period of time. The Circuit Breaker and its operating mechanism represent a mechanical device with moving parts. Without exercise, lubricated parts can have higher friction during the first-operation than after multiple operations. Measuring the first trip of a circuit breaker will show how the breaker would have operated in a real situation. Trip coil current signatures provide an indirect view of circuit breaker operation and its condition.

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Doble Testing of Two-Winding Transformers
Wednesday, March 4, 2016, 1:00-2:00pm US EST
Presented by: Daniel Vaughn, Client Service Engineer

Power factor and capacitance testing of the overall insulation of a two winding transformer is a diagnostic tool that can help identify the condition of the transformer. This webinar will provide a review of the procedures for power factor testing a two winding transformer as well as analysis of the test results.

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Doble Engineering Company

Doble Engineering Company