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invertor Fimer X204


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Am schimbat tranz igbt 6 buc=15A arsi,cu altii de 40A.

Ca protectie temporar, am taiat traseul intre +300V si colectori igbt ramura superioara, am pus 75 ohmi/20w si am decuplat cu 47uf/400v. Astfel am masurat curentul in gol =170mA. Asta inseamna 50w la mers in gol.

E normal acest consum?

Altfel am tensiuni egale pe igbt ,ramura de sus si cea se jos. Asa merge el, trafo in regim saturat in gol?

sau mai am ceva defect? Mi-e frica sa incerc cu electrod,sa nu pocneasca iar, nu de alta dar am mai patit.

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