Jump to content
ELFORUM - Forumul electronistilor

NUMAI despre trafo din UPS-uri

Recommended Posts

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.


Voltmetrul paralel pe 10 ohm, indicatiile sunt sute miliV.

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

Edited by Guest
Link to comment
Share on other sites

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!?!?


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

Edited by Guest
Link to comment
Share on other sites

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 ?


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

Edited by Guest
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.Terms of Use si Guidelines