220kV Three-Phase On-Load Tap-Changing Tie Transformer
SSZ20-180000/220-NX2
Product Overview
High-Performance power transformer designed and manufactured to international standards, suitable for power transmission and distribution systems worldwide.
Inquire NowTechnical Specifications
| Model | SSZ20-180000/220-NX2 |
| Rated Capacity | 180000/180000/90000 kVA |
| Rated Voltage Ratio | (220±8x1.25%)/121/38.5 kV |
| Short-Circuit Impedance | L-M: 8%(±5%) H-M: 14%(±3%) L-H: 24%(±5%) |
| Rated Frequency | 50 Hz |
| Connection Symbol | YNyn0d11 |
| Insulation Level | SI750LI950AC395-LI400AC200 LI480AC200-LI325AC140 LI200AC85 kV |
| Cooling Method | ONAN |
| No-Load Loss | ≤81 kW |
| Load Loss | ≤538 kW |
| Temperature Rise Limit | Top Oil: ≤50 Winding Average: ≤60 K |
| Noise (Sound Pressure Level) | ≤65 dB(A) |