33kv 40000kVA Power Distribution Transformer-1687490689918104
Technical parameters:
SFZ-40000/33 Power transformer
Name: Three-phase windings OLTC dual immersion air-cooled power transformers
Type: SFZ-40000/33
Rated voltage: 33/6.9kv
Rated power: 35000/40000kVA
Rated voltage ratio: 33± 3× 2.5%/6.9kV
Rated currency: 700/3347A
PHASE: THREE PHASE
Rated Frequency: 50Hz
Connection Symbol: Dyn11
Tap changer: On load tap changer
Impedance voltage%: 13+0.8%
Cooling way: ONAN/ONAF
Winding Insulation Level
Lightning impulse withstand voltage(Kv, peak value) 1 min Frequency Pressure(kv, virtual value)
Full-wave
Latest wave
HIGH voltage SIDE: 170 185 75
Low voltage side: 75 85 35
Low-voltage neutral point: 75 35
Insulation class Class A
Transformer windings of the Inter-field strength is not more than 2 Kv / mm
Transformer loss (below 75), the no-load current and efficiency
No-load loss: 21 kW
Load loss: 198 Kw
No-load current: 0.5%
Radio frequency interference and Corona
To the greatest work of the voltage, outdoor sunny evening out line without visible Corona, radio interference voltage is not more than 2500
UV.
| Type | Voltage compose and Tapping range (kV) HV LV Connection |
No-load Loss (kW) |
Load loss (kW) |
No-load current (%) |
Impedance voltage (%) |
Transport weight (t) |
Gross weight (t) |
Dimensions L×W×H (mm) |
||
| SZ9-2000/35 | 35 ±3×2.5% |
6.3 10.5 |
Yd11 |
2.88 | 18.7 | 1.00 | 6.5 | 4.93 | 5.97 | 3010×2070×2540 |
| SZ9-2500/35 | 3.40 | 21.7 | 1.00 | 6.5 | 5.68 | 6.95 | 3040×2270×2610 | |||
| SZ9-3150/35 | 4.04 | 26.0 | 0.90 | 7.0 | 6.08 | 7.90 | 3160×2300×2640 | |||
| SZ9-4000/35 | 35 38.5 ±3×2.5% |
6.3 10.5 |
4.84 | 30.7 | 0.90 | 7.0 | 7.10 | 9.11 | 3300×2330×2890 | |
| SZ9-5000/35 | 5.80 | 36.0 | 0.85 | 7.0 | 8.47 | 10.86 | 3350×2520×3000 | |||
| SZ9-6300/35 | 7.04 | 38.7 | 0.85 | 7.5 | 9.87 | 12.30 | 3680×2650×3050 | |||
| SZ9-8000/35 | 9.84 | 42.8 | 0.75 | 7.5 | 12.55 | 15.30 | 4190×2930×3280 | |||
| SZ9-10000/35 | 35 38.5 ±3×2.5% |
6.3 6.6 10.5 11 |
Ynd11 |
11.6 | 50.6 | 0.75 | 7.5 | 14.70 | 17.86 | 4620×3160×3400 |
| SZ9-12500/35 | 13.7 | 60.0 | 0.70 | 8.0 | 17.35 | 20.05 | 4740×3200×3540 | |||
| SZ9-16000/35 | 16.0 | 73.0 | 0.70 | 8.0 | 19.45 | 23.74 | 4810×3360×3790 | |||
| SZ9-20000/35 | 18.9 | 88.3 | 0.70 | 8.0 | 27.50 | 34.95 | 4880×3540×4150 | |||
| SZ9-25000/35 | 22.4 | 104.4 | 0.65 | 8.0 | 32.51 | 40.22 | 4920×3920×4200 | |||
| SZ9-31500/35 | 26.6 | 125.3 | 0.65 | 8.0 | 37.73 | 45.53 | 5010×4270×4460 | |||
| Ratedpower (kVA) |
Valtage | Connction | 9 loss(kW) | 10 loss(kW) | 11 loss(kW) | No-load Loss(%) | Impedence Voltage(%) | Weight(t) | Outline Dimension(mm) | Guage (mm) |
||||||||
| H.V (kV) |
L.V (kV) |
No-Load Loss | Load Loss | No-Load Loss | Load Loss | No-Load Loss | Load Loss | Oil weight | Untanking weight |
Total weight | L | B | H | |||||
| 2000 | 35 38.5 ±3× 2.5% |
6.3 6.6 10.5 11 |
Yd11 | 2.88 | 20.25 | 2.59 | 19.24 | 2.30 | 19.24 | 0.80 | 6.5 | 1.9 | 7 | 3680 | 2050 | 2850 | 1070 | |
| 2500 | 3.40 | 21.73 | 3.06 | 20.64 | 2.72 | 20.54 | 0.80 | 2.1 | 7.9 | 3780 | 2220 | 2890 | 1070 | |||||
| 3150 | 4.04 | 26.01 | 3.64 | 24.71 | 3.23 | 24.71 | 0.72 | 7 | 2.4 | 7.5 | 8.5 | 3850 | 2310 | 2950 | 1070 | |||
| 4000 | 4.84 | 30.69 | 4.36 | 29.16 | 3.87 | 29.16 | 0.72 | 2.8 | 9.5 | 11 | 4120 | 2380 | 3150 | 1070 | ||||
| 5000 | 5.80 | 36.00 | 5.22 | 34.2 | 4.64 | 34.2 | 0.68 | 3.1 | 10.5 | 12 | 4210 | 2510 | 3220 | 1070 | ||||
| 6300 | 7.04 | 38.70 | 6.34 | 36.77 | 5.63 | 36.77 | 0.68 | 7.5 | 3.3 | 12.5 | 14.6 | 4320 | 3000 | 3290 | 1475 | |||
| 8000 | YNd11 | 9.84 | 42.75 | 8.86 | 40.61 | 7.87 | 40.61 | 0.60 | 3.8 | 14 | 17.1 | 4500 | 3100 | 3680 | 1475 | |||
| 10000 | 11.60 | 50.58 | 10.44 | 48.05 | 9.28 | 48.05 | 0.60 | 4.3 | 17 | 20.1 | 4560 | 3500 | 3750 | 1475 | ||||
| 12500 | 13.68 | 59.85 | 12.31 | 56.86 | 10.94 | 56.86 | 0.56 | 8 | 8.56 | 20 | 23 | 4650 | 3600 | 3830 | 1475 | |||
| 16000 | 16.46 | 74.02 | 14.81 | 70.32 | 13.17 | 70.32 | 0.54 | 9.5 | 23 | 27 | 5000 | 3800 | 3950 | 1475 | ||||
| 20000 | 19.46 | 87.14 | 17.51 | 82.78 | 15.57 | 82.78 | 0.54 | 10 | 28.5 | 33 | 5200 | 4100 | 4000 | 1475 | ||||
