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NUMAI despre trafo din UPS-uri

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Am cateva trafuri din UPS-uri si poate le gasim aplicatii.

Pt inceput curentul de magnetizare prin unul pe tole E16.

Am pus 10 ohm serie cu primarul pe care este sonda de jos pe 500mV/div. Zeroul pe linia 3.

Sus este tensiunea in primar, neasteptat de deformata si care este in secundarul unui traf separator.

Baza de timp pe 2msec/div.

Masuratori la 170V, 210V si 230V.

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Voltmetrul paralel pe 10 ohm, indicatiile sunt sute miliV.

EDIT1: La 230V retea in sec am 2 x 7V !? in gol.

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Alt traf, tot pe E16 si aceeasi latime. Masurare numai la 210V .

Acesta se incalzeste, daca apas mai tare pe tole nu pot tine prea mult mana. Nu am termometru!?!?

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La 212v intrare am 14,4V capete secundar.

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Traf pe E16 dar cu latime 31mm fata de 35-36 primele 2.

Zeroul este acum pe mijloc, 50mA/div.

Masuratori la 210v si 230V.

Dupa 2 ore miezul e caldut, 40-45 grade ?

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Deci de la 100mA la varf la 200mA la varf este diferenta intre caldut si fierbinte.

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