GlobeCore / Produzione / Dispositivo per il controllo dell'olio dei trasformatori / Dispositivo di misurazione per olio per trasformatori TOR-3

Dispositivo di misurazione per olio per trasformatori TOR-3

Il dispositivo TOR-3 è progettato per determinare la tangente di perdita dielettrica, la costante dielettrica e il resistività elettrica dell’olio per trasformatori e di altri dielettrici liquidi in conformità con IEC 60247-2004-02 (VDE-0380-2:2005_01), ASTM D924-08, ASTM D1169-02.

 È un dispositivo completamente automatico che esegue il collaudo secondo le procedure definite da tali norme, nonché secondo le procedure utente specificate nella corrispondente sezione del menu di installazione.

Principio di funzionamento

Il principio di funzionamento del dispositivo si basa sulla misurazione della differenza di ampiezza e fase dei segnali ottenuti applicando una tensione sinusoidale di prova con un valore efficace fino a 2 kV contemporaneamente al condensatore di riferimento e all’oggetto di misura, che è la cella di misura dell’impianto.

La differenza nelle ampiezze dei segnali prelevati dal condensatore di riferimento e dall’elettrodo interno della cella di misura è proporzionale alla costante dielettrica del liquido in esame.  La differenza di fase dei segnali prelevati dal condensatore di riferimento e dall’elettrodo interno della cella di misura caratterizza il valore della tangente dell’angolo di perdita dielettrica.

 

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