METHOD FOR SHORT-CIRCUIT AND OVERVOLTAGE PROTECTION OF ELECTRIC POWER RECEIVERS

The invention relates to a method for the automatic short-circuit and overvoltage protection of low power electric receivers (220V x 40A = 8800W at the most). The claimed method is meant to be applied within a quick short-circuit and overvoltage protection electronic device made of a microcontroller...

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Hauptverfasser:	OGRUTAN PETRE LUCIAN, SUCIU LIVIU, MUNTEANU RADU IOAN
Format:	Patent
Sprache:	eng ; rum
Schlagworte:	CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION
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Beschreibung
Zusammenfassung:	The invention relates to a method for the automatic short-circuit and overvoltage protection of low power electric receivers (220V x 40A = 8800W at the most). The claimed method is meant to be applied within a quick short-circuit and overvoltage protection electronic device made of a microcontroller (U2) which measures the network voltage, the power circuit thereof having serially connected a triac-based variable current regulator (Q1) and a resistor (7) for limiting the current to the maximum peak value (400A), accepted by the triac (Q1). Invenţia se referă la o metodă pentru protecţia automată la scurtcircuit şi supratensiune a receptorilor de energie electrică de mică putere (220V x 40A = 8800W max.). Metoda este destinată aplicării în cadrul unui dispozitiv electronic de protecţie rapidă la scurtcircuit şi supratensiune, realizat cu un microcontroler (U2) care măsoară tensiunea reţelei, având înseriat, cu circuitul de putere, un variator de curent cu triac (Q1) şi o rezistenţă (R7) de limitare a curentului la valoarea maximă de vârf (400A), nerepetitivă, acceptată de triac (Q1).