1.9. SINGLE-PHASE SF6 INSULATED TRANSFORMER of 220 kV

Type Rated power, kVA Rated winding voltage, kV Type, range and
number of
voltage
regulation steps
Winding scheme
and connection
group
Cooling
HV LV
ОРЭНЦН-21000/220-У1 63000
(3 phases by
21000)
230/√3 11-11 OLTC in neutral of HV
± 10% (± 10 steps)
Ynd11d11 ODWF
ОРЭНДЦН-21000/220-У1 63000
(3 phases by
21000)
230/√3 11-11 OLTC in neutral of HV
± 10% (± 10 steps)
Ynd11d11 ODAF