transformatoare retea 5.1

[vera]

Anul acesta am reparat 2 sisteme 5.1.

Postez aceste date. poate intereseaza pe cineva.

 

Orion HT-831

 

1-date trecute pe carcasa:

primar 220V/50Hz;

secundar 1-2x14,5V/4A;

secundar 2-2x11,5V/0,5A;

putere consumata 175W;

 

2-date masurate/numarate/calculate, etc:

primar 598sp/0,45(0,5)mm (numarate), J175W=5A/mmp, J132W=3,77A/mmp;

secundar 1-2x43sp/1.0(1,05)mm (numarate), J=5A/mmp;

secundar 2-2x35sp/0,45(0,5)mm, J=3,145A/mmp;

tole cu limba centrala=28,5mm, g=0,5mm, 86E+84I, Sef=86x0,05x2,85=12,255cmp;

n=598/220=2,7(18), k=33,31, B=13552Gs;

putere secundare=2x14,5x4+2x11,5x0,5=127,5W. La ac. P randamentul este 97%. Putere primar=131,5W;

carcasa nu a fost recuperata. Am facut alta.

 

3-am bobinat:

primar 780sp/0,38(0,43)mmp

secundar 1-2x51sp/1,0(1,05)mm;

secundar 2-2x42sp/0,45(0,5)mm

 

4-masuratori:

Uop=230V/Iop=106mA;

Uo1=2x14,94V

Uo2=2x12,95V

 

5-schimbat 1CI care era ars si care carbonizase circuitul imprimat (am refacut traseele ac. circuit).

trafo retea nu avea siguranta termica, in loc de siguranta fuzibila avand sarma.

 

Genius SW-HP 5.1

 

1-date trecute pe carcasa

CTP10311-2;

INPUT 230V/50Hz/0,54A;

OUTPUT AC 28VCT/2,4A&12V/1A&10VCT/1,2A

TEMP FUSE M33JF, FUSE 3,15A/250V.

 

2-date masurate/numarate/calculate, etc.

trafo era umblat, anulata siguranta termica, primarul era original, in perfecta stare, secundarele arse, carcasa lor asemenea;

secundar 1-21sp/0,45(0,48)mm;

secundar 2-2x48sp/0,6(0,635)mm;

secundar 3-32+42sp (trebuiau 2xNspire)/0,8(0,85)mm;

tole E12,5, 106E+104I, g=0,5mm, Sef=106x0,05x2,5=13,25cmp;

N230=514sp/0,45(0,5)mm (calculate), np=2,2348sp/v, B=15212Gs (f mare), k=29,61

 

3-am bobinat

secundar 1-31sp/0,65(0,7)mm;

secundar 2-2x47sp/0,65(0,7)mmp;

secundar 3-2x24sp/0,85(0,9)mm.

 

4-masuratori:

Uop=230V/Iop=156mA;

Uo1=1x13,7V(alimentare TDA7360+pre);

Uo2=2x20,5V(alimentare 1xTDA7296);

Uo3=2x10,6V (alimentare 2xTDA7269).

 

5-schimbat 2xTDA7269 arse, refacut trasee circuit imprimat, montat siguranta termica.

 

PS-am un sistem 5.1 Silver Crest, cu 2xTDA8947J, fara transformator retea. Daca are cineva datele ac. traf, il rog sa mi le comunice.

Multumesc.

Editat Decembrie 26, 2016 de vera