Sz- 31500 /69/6.3 31.5mva 66kv Double-Winding Power Transformers with on-Load Tap Changer
Technical parameters:Rated Capacity(MVA):31.5Voltage ratio HV(KV): 69Voltage ratio LV(KV): 6.3Voltage ratio HV Tapping Range(kv):± 8 x 1.25%Connection symbol:YND11No-load Loss(KW):33.7No-load Current(%):0.45Full-load Loss(KW):126.9Impedance(%):9Reference Temperature ° C75No-Load L......
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Product Description
| Rated Capacity(MVA): | 31.5 |
| Voltage ratio HV(KV): | 69 |
| Voltage ratio LV(KV): | 6.3 |
| Voltage ratio HV Tapping Range(kv): | ± 8 x 1.25% |
| Connection symbol: | YND11 |
| No-load Loss(KW): | 33.7 |
| No-load Current(%): | 0.45 |
| Full-load Loss(KW): | 126.9 |
| Impedance(%): | 9 |
| Reference Temperature | ° C | 75 | ||||
| No-Load Losses at Principal Tapping: | W | 9.0 kW | ||||
| Looses of Cooling Fan System | W | / | ||||
| Insulation Levels (LI/AC): | LI325AC140/LI125AC55 | |||||
| No Load Current: | @ Un | % In | 0.56 | |||
| @ 1.05 Un | % In | 0.68 | ||||
| Sound Level: | dB | < 67 | ||||
| Short Circuit Impedance at Principal Tapping: | P/S | % Un | 8~10% | |||
| P/T | % Un | |||||
| S/T | % Un | |||||
| Reference Temperature | ° C | 75 | ||||
| Top Oil Temperature Rise: | °C | 51K | ||||
| Average Winding Temperature Rise: | °C | 64K | ||||
| Insulation Resistance (Reference Temperature = 20°C): | ||||||
| HV/LV / | Mohms | ≥1000 | ||||
| HV/GR - LV/GR - | Mohms | ≥1000 | ||||
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