SSPC technology incorporated with thermal memory effects to achieve the fuse curve coordination

SSPC technology incorporated with thermal memory effects to achieve the fuse curve coordination

Methods and apparatuses implement a thermal memory effect for a solid state power controller. A solid state power controller trip apparatus with thermal memory according to one embodiment comprises: a trip module including a first capacitor (156) and a counter (174), wherein the first capacitor (156...

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Bibliographische Detailangaben
Hauptverfasser: NGUYEN THAT, FULLER RANDY J, YE YANG, LIU ZHENNING Z, GAYOWSKY TED J, YU WENJIANG, FILIMON DANIEL G, PLIVCIC BORIS
Format: Patent
Sprache:eng
Schlagworte:
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
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Beschreibung
Zusammenfassung:Methods and apparatuses implement a thermal memory effect for a solid state power controller. A solid state power controller trip apparatus with thermal memory according to one embodiment comprises: a trip module including a first capacitor (156) and a counter (174), wherein the first capacitor (156) charges multiple times, when an over current event occurs, and the counter (174) accumulates a count related to the charging of the first capacitor (156) for the multiple times, to detect a trip condition; and a discharging module connected to the trip module, the discharging module including a resistor (166) and a second capacitor (158), wherein an electrical parameter associated with the count decays with time using the resistor (166) and the second capacitor (158).