IEC STANDARD 60056 PDF

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Evaluation of high-voltage circuit breaker performance with a validated arc model. N2 - A digital current-zero measuring system was used to monitor about zero crossings of short-line fault currents in three designs of commercial high-voltage circuit breakers. The breakers were subjected to standard IEC tests in a high-power laboratory. With these results, an empirical arc model was derived, based on the series connection of three classical modified Mayr models.

With this model, the margin of the interrupting capability could be directly obtained. A strong relation between this margin and the arc conductivity at current zero can be established. Independent of arcing time, arcing current and state of the breaker, it was found that the current zero conductivity must decrease to ms only depending on the design of the breaker to make a successful interruption possible.

AB - A digital current-zero measuring system was used to monitor about zero crossings of short-line fault currents in three designs of commercial high-voltage circuit breakers.

Smeets, V. Electrical Energy Systems. Abstract A digital current-zero measuring system was used to monitor about zero crossings of short-line fault currents in three designs of commercial high-voltage circuit breakers. Electric circuit breakers. Electric potential. Electric fault currents. Smeets, R. Independent of arcing time, arcing current and state of the breaker, it was found that the current zero conductivity must decrease to ms only depending on the design of the breaker to make a successful interruption possible",.

AU - Kertesz, V. PY - Y1 - N2 - A digital current-zero measuring system was used to monitor about zero crossings of short-line fault currents in three designs of commercial high-voltage circuit breakers. Independent of arcing time, arcing current and state of the breaker, it was found that the current zero conductivity must decrease to ms only depending on the design of the breaker to make a successful interruption possible AB - A digital current-zero measuring system was used to monitor about zero crossings of short-line fault currents in three designs of commercial high-voltage circuit breakers.

Independent of arcing time, arcing current and state of the breaker, it was found that the current zero conductivity must decrease to ms only depending on the design of the breaker to make a successful interruption possible U2 - Access to Document Metis Final published version, KB.

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Evaluation of high-voltage circuit breaker performance with a validated arc model

Note: this publication has been replaced by IEC Do you need a multi-user copy? Our prices are in Swiss francs CHF. We accept all major credit cards American Express, Mastercard and Visa , PayPal and bank transfers as form of payment. Abstract Applies to a. Applies only to three-pole circuit-breakers for use in three-phase systems and single-pole circuit-breakers for use in single-phase systems. Two-pole circuit-breakers for use in single-phase systems are subject to agreement between manufacturer and user.

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