IEC 60076, ANSI/IEEE Std C57.12, NEMA
ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA
Mineral Oil / Vegetable Oil (FR3), Free PCB
Low loss, Low partial discharge, Low temperature rise
Seismic design, ETGI-1.020, IEEE Std 693, NCh2369
Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1
High altitude correction per IEC 60076 & IEEE C57.12, ~ 5000m
220kV Three-phase Three-winding Power Transformer with NLTC
Rated Power (kVA) | Voltage and tapping range(kV) | Vector group | No-load loss (kW) | Load loss (kW) | No-load current (%) | Impedance (%) | |||
HV | MV | LV | Step Up | Step Down | |||||
31500 | 220±2×2.5%
242±2×2.5% | 69
115
121 | 6.3, 6.6 10.5, 11 35, 37 38.5 | YNyn0d11 | 26.6 | 137 | 0.47 | HV-MV 22 ～ 24
HV-LV 12 ～ 14
MV-LV 7 ～ 9 | HV-LV 22 ～ 24
HV-MV 12 ～ 14
MV-LV 7 ～ 9 |
40000 | 31.7 | 161 | 0.42 | ||||||
50000 | 37.6 | 192 | 0.37 | ||||||
63000 | 44.5 | 222 | 0.37 | ||||||
90000 | 10.5, 11 13.8, 35 37, 38.5 | 57 | 299 | 0.31 | |||||
120000 | 71 | 369 | 0.31 | ||||||
150000 | 11 13.8 15.75 35 37 38.5 | 84 | 437 | 0.26 | |||||
180000 | 95 | 499 | 0.26 | ||||||
240000 | 118 | 614 | 0.22 | ||||||
300000 | 139 | 724 | 0.18 | ||||||
220kV Three-phase Three-winding Power Transformer with OLTC
Rated Power (kVA) | Voltage and tapping range(kV) | Vector group | No-load loss (kW) | Load loss (kW) | No-load current (%) | Impedance (%) | |||
HV | MV | LV | Step Up | Step Down | |||||
31500 | 220±8×1.25%
242±8×1.25% | 69
115
121 | 6.3 6.6 10.5 11 35 37 38.5 | YNyn0d11 | 29.1 | 138 | 0.52 | HV-MV 22 ～ 24
HV-LV 12 ～ 14
MV-LV 7 ～ 9 | HV-LV 22 ～ 24
HV-MV 12 ～ 14
MV-LV 7 ～ 9 |
40000 | 34.2 | 161 | 0.47 | ||||||
50000 | 40 | 192 | 0.42 | ||||||
63000 | 47 | 222 | 0.42 | ||||||
90000 | 10.5 11 35 37 38.5 | 62 | 299 | 0.37 | |||||
120000 | 77 | 369 | 0.37 | ||||||
150000 | 90 | 437 | 0.31 | ||||||
180000 | 103 | 537 | 0.31 | ||||||
24000 | 124 | 665 | 0.29 | ||||||
