Controllo VAR di un alternatore

Controllo VAR di un alternatore

Amartya Roy / Arnab Ganguly

71,96 €
IVA incluido
Disponible
Editorial:
KS OmniScriptum Publishing
Año de edición:
2026
ISBN:
9786630103892
71,96 €
IVA incluido
Disponible

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Il controllo della tensione di un alternatore è il processo di mantenimento di una tensione terminale costante in condizioni di carico variabili. Quando il carico di un alternatore cambia, la tensione terminale tende ad aumentare o diminuire a causa della reazione dell’indotto e delle cadute di impedenza interna. Un adeguato controllo della tensione è necessario per garantire un funzionamento stabile e affidabile del sistema elettrico.Il metodo più comune di controllo della tensione è la regolazione dell’eccitazione del campo. Aumentando la corrente di campo, l’emf generata aumenta, con conseguente aumento della tensione di terminale. Allo stesso modo, diminuendo la corrente di campo si riduce la tensione. Questo controllo si ottiene solitamente con l’aiuto di un regolatore automatico di tensione (AVR), che monitora continuamente la tensione di uscita e regola automaticamente l’eccitazione.Altri metodi includono l’uso di trasformatori di commutazione e condensatori sincroni. Un controllo efficace della tensione migliora la qualità dell’energia, la stabilità del sistema e protegge le apparecchiature elettriche dai danni dovuti alle fluttuazioni di tensione durante il funzionamento.

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