echiparea si modernizarea vagoanelor de calatori in ... - IPA SA
echiparea si modernizarea vagoanelor de calatori in ... - IPA SA
echiparea si modernizarea vagoanelor de calatori in ... - IPA SA
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PROGRAMUL CEEX<br />
CONTRBUTII STIINTIFICE IN TRANSPORTURI<br />
76<br />
36<br />
78<br />
E<br />
2X8<br />
1X1<br />
1500Vc.a - 50Hz<br />
1000Vc.a - 16 2/3Hz<br />
3000Vc.c<br />
1500Vc.c<br />
1X2<br />
1 2<br />
1<br />
1 2<br />
2<br />
1 2<br />
11<br />
1 2<br />
10<br />
1 2<br />
12<br />
13<br />
14<br />
15<br />
16<br />
17<br />
18<br />
19<br />
20<br />
3 4<br />
1 2<br />
22b<br />
22a<br />
22b<br />
1 2<br />
23<br />
24<br />
25<br />
26<br />
27<br />
29<br />
1 2<br />
28<br />
30<br />
31<br />
32<br />
33<br />
35<br />
34<br />
5<br />
6<br />
1x11<br />
1x12<br />
7<br />
21 36 46 55 66<br />
76<br />
1 2<br />
3<br />
1x13<br />
1x14<br />
9<br />
8<br />
1x21<br />
1 2<br />
4<br />
1x22<br />
1x23<br />
1x24<br />
82<br />
22<br />
76 21<br />
39 40 41<br />
49 50<br />
1 2<br />
1 2<br />
77<br />
76<br />
42<br />
43<br />
76<br />
51<br />
46<br />
45<br />
44<br />
55<br />
54<br />
53<br />
79<br />
80<br />
56<br />
1 2<br />
1 2 1 2<br />
37<br />
1 2<br />
1 2 1 2<br />
47<br />
38<br />
48<br />
2X3<br />
2X4<br />
2X5<br />
2X6<br />
2X7<br />
2X8<br />
2X12<br />
CONS.I 3X400<br />
Vc.a-2...50Hz<br />
CONS.I 3X400<br />
Vc.a-50Hz<br />
FIG.1<br />
1 2<br />
85<br />
83<br />
84<br />
86<br />
59 60<br />
1 2<br />
61<br />
52<br />
62<br />
63<br />
76<br />
64<br />
65<br />
66<br />
81<br />
68<br />
67<br />
69<br />
70<br />
1 2<br />
57<br />
72<br />
71<br />
73<br />
1 2<br />
74<br />
58<br />
75<br />
(-)<br />
2X13<br />
2X9<br />
2X10<br />
2X11<br />
CONS. 220<br />
Vc.a-50Hz<br />
CONS.<br />
24Vc.c<br />
6<br />
Figura 1. Schema partii <strong>de</strong> putere a sursei statice<br />
3.000 Vcc <strong>si</strong> respectiv <strong>in</strong> paralel pentru celelalte 3 ten<strong>si</strong>uni <strong>de</strong> <strong>in</strong>trare, pr<strong>in</strong> <strong>in</strong>termediul contactelor 22a<br />
<strong>si</strong> 22b comandate <strong>de</strong> blocul <strong>de</strong> se<strong>si</strong>zare ten<strong>si</strong>une <strong>de</strong> <strong>in</strong>trare 22.<br />
Blocul <strong>de</strong> se<strong>si</strong>zare ten<strong>si</strong>une <strong>de</strong> <strong>in</strong>trare realizat <strong>de</strong> ICPE <strong>SA</strong>ERP este realizat cu microprocesor, <strong>si</strong><br />
a<strong>si</strong>gura, pr<strong>in</strong> <strong>in</strong>sumarea a 256 <strong>de</strong> esantioane a ten<strong>si</strong>unii <strong>de</strong> <strong>in</strong>trare pe cate o durata <strong>de</strong> aproximativ 0,3 s,<br />
<strong>de</strong>term<strong>in</strong>area ten<strong>si</strong>unii efective <strong>si</strong> frecventei fara greseala, <strong>in</strong>clu<strong>si</strong>v <strong>in</strong> cazurile <strong>in</strong> care ten<strong>si</strong>unea<br />
alternativa este <strong>si</strong>nusoidala, trapezoidala sau dreptunghiulara.<br />
Totodata echipamentul afiseaza la <strong>si</strong>stemul propriu <strong>de</strong> afisare ten<strong>si</strong>unea <strong>de</strong> <strong>in</strong>trare <strong>si</strong> respectiv<br />
transmite <strong>in</strong>formatiile necesare <strong>de</strong>spre tipul ten<strong>si</strong>unii <strong>de</strong> <strong>in</strong>trare, (ten<strong>si</strong>unea culeasa <strong>de</strong> la conducta<br />
pr<strong>in</strong>cipala a trenului), la tabloul <strong>de</strong> comanda al vagonului.<br />
Ten<strong>si</strong>unea <strong>de</strong> ie<strong>si</strong>re d<strong>in</strong> transformator este redresata <strong>si</strong> filtrata <strong>de</strong> <strong>in</strong>ductanta 25 (<strong>de</strong> valoare ridicata) <strong>si</strong><br />
con<strong>de</strong>nsatorii 27 fi<strong>in</strong>d prestabilizata la cca. 600 Vcc, acesta pr<strong>in</strong> comanda corespunzatoare a <strong>in</strong>vertorului, <strong>de</strong><br />
catre blocul <strong>de</strong> comanda <strong>si</strong> control 21 realizat cu microprocesor, pr<strong>in</strong> <strong>in</strong>termediul driverului 20. Ten<strong>si</strong>unea <strong>de</strong><br />
600 Vcc, este aplicatä unor con<strong>de</strong>nsatoare 61,62 <strong>si</strong> 63 <strong>si</strong> apoi este aplicata unui <strong>in</strong>vertor monofazat cu<br />
frecventa <strong>in</strong>termediara ridicata mai mare <strong>de</strong> 10 kHz- 64, realizat cu tranzistoare IGBT sau HEXFET,<br />
comandat cumicroprocesor. Ten<strong>si</strong>unea <strong>de</strong> ie<strong>si</strong>re d<strong>in</strong> <strong>in</strong>vertor <strong>de</strong>p<strong>in</strong><strong>de</strong> <strong>de</strong> temperatura bateriei <strong>de</strong> acumulatoare.<br />
Invertorul monofazat <strong>de</strong>biteaza pe un transformator monofazat coborator <strong>de</strong> ten<strong>si</strong>une- 68, ten<strong>si</strong>unea <strong>de</strong> pe<br />
<strong>in</strong>fasurarea secundarä fi<strong>in</strong>d aplicatä unei punti redresoare 69. Ten<strong>si</strong>unea <strong>de</strong> ie<strong>si</strong>re d<strong>in</strong> redresor, este transmisä<br />
la un filtru LC – 70,71 <strong>de</strong> dimen<strong>si</strong>uni mici, <strong>de</strong>oarece ten<strong>si</strong>unea redresatä este <strong>de</strong> frecventa ridicata. Blocul <strong>de</strong><br />
reglare 66 a<strong>si</strong>gura curentul <strong>de</strong> <strong>in</strong>carcare al bateriei <strong>de</strong> acumulatoare sa nu <strong>de</strong>paseasca o valoare data, pentru<br />
acumulatorii cu Pb utilizati fi<strong>in</strong>d <strong>de</strong> 80 A. In aceasta perioada <strong>de</strong> limitare a curentului <strong>de</strong> <strong>in</strong>carcare al bateriei,<br />
UCP AMTRANS - NOIEMBRIE 2007