1.4 TRANSFORMERS FOR METALLURGY

Type Rated capacity, kVA Rated winding voltage, kV Type, range and
number of voltage
regulation steps
Winding
scheme and
connection
group
Cooling
HV LV
ТРДН-25000/330-У1 25000 347 6,6-6,6 OLTC in neutral of
HV ± 16% (± 9 steps)
Ynd11d11 ONAF
ТРДНС-25000/330-У1 25000 330 6,3-6,3 OLTC in neutral of
HV ± 16% (± 9 steps)
ТРДНС-25000/220-У3 25000 230 6,3-6,3; 6,6-6,6 OLTC in neutral of
HV ± 12% (± 8 steps)
ТРДН-32000/220-У1 32000 230 6,3-6,3; 6,6-6,6;
11,0-11,0; 11,0-6,6
OLTC in neutral of
HV
± 12% (± 12
steps)
ТРДНС-32000/220-У1 32000 230 6,3-6,3
ТРДНС-40000/220-У1 40000 230 6,3-6,3;
11,0-11,0
ТРДН-63000/220-У1 63000 230 6,3-6,3; 6,6-6,6;
11,0-11,0; 11,0-6,6
ТРДЦН-63000/220-У1 63000 230 6,3-6,3; 6,6-6,6;
11,0-11,0; 11,0-6,6
OFAF
ТРДЦН-63000/220-У1 63000 230 10,5–10,5 Ynd11 ONAN / ONAF/
OFAF
ТРДН-80000/220-УХЛ1 80000 230 11,0-11,0 Ynd11d11 ONAF
ТДЦН-100000/220-У1 100000 230 22,0 YNyn0 OFAF
ТРДЦН-100000/220-У1 100000 230 10,5–10,5;
11,0-11,0
Ynd11d11 OFAF
ТРДЦН-125000/220-У1 125000 230 11,0-11,0 Ynd11d11 OFAF
ТДЦН-160000/220-У1 160000 230 22,0 OLTC in neutral of
HV ± 16% (± 9 steps)
YNyn0 OFAF
ТДЦН-200000/220-У1 200000 231 15 OLTC in neutral of
HV +4 х 1,25% / -8 х
1,25%
Ynd11 ONAN / ONAF/
OFAF
ТДЦН-400000/220-У1 400000 231 15,75