Augmentation of ambient temperature and free convection effects in thermal circuit breaker trip curve approximations

An electrical overload protection system may be based on a solid state control system. A solid state switch may open responsively to commands for a solid-state controller. The controller may perform calculations to determine accumulated energy in a protected conductor. The calculations may be based,...

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Hauptverfasser: YE, YANG, LIU, ZHENNING Z, GAYOWSKY, TED J, FULLER, RANDY J
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:An electrical overload protection system may be based on a solid state control system. A solid state switch may open responsively to commands for a solid-state controller. The controller may perform calculations to determine accumulated energy in a protected conductor. The calculations may be based, in part, on samplings of current in the protected conductor and ambient temperature to which the conductor may be exposed.