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3 phase 35kV power transformer with on-load tap changer, on-load change voltage transformer
35kV Three Phase Oil-immersed Transformer. SZ11 series
Rated capacity: 2,000kVA~20,000kVA
Rated Primary Voltage 35kV 38.5kV
Rated Secondary voltage 400V 3.15kV 6.3kV 10.5kV
| Rated Capacity | Primary Volt. | Secondary Volt. | Short Circuit impedance(%) | Connection Symbol | No-load loss(W) | Load-loss(W) | No-load Current(%) |
| 50 | 35 | 0.4 | 6.5 | Dyn11 Yyn0 | 0.17 | 1.2111.15 | 2.0 |
| 100 | 0.23 | 2.02/1 .92 | 1.8 | ||||
| 125 | 0.27 | 2.3812.26 | 1.7 | ||||
| 160 | 0.29 | 2.8312.69 | 1.6 | ||||
| 200 | 0.35 | 3.3313.17 | |||||
| 250 | 0.41 | 3.9613.77 | 1.4 | ||||
| 315 | 0.49 | 4.76/4.54 | 1.4 | ||||
| 400 | 0.58 | 5.7515.48 | 1.3 | ||||
| 500 | 0.69 | 6.9216.59 | 1.2 | ||||
| 630 | 0.83 | 7.87 | 1.1 | ||||
| 800 | 0.98 | 9.41 | 10 | ||||
| 1000 | 1.15 | 11.55 | 1.0 | ||||
| 1250 | 1.41 | 13.94 | 0.9 | ||||
| 1600 | 1.70 | 16.68 | 0.8 | ||||
| 800 | 35 | 10.5 6.3 3.15 | 6.5 | Yd11 | 0.98 | 9.41 | 1.0 |
| 1000 | 1.15 | 11.55 | 1.0 | ||||
| 1250 | 1.41 | 13.94 | 0.9 | ||||
| 1600 | 1.70 | 16.68 | 0.8 | ||||
| 2000 | 2.18 | 18.39 | 0.7 | ||||
| 2500 | 2.56 | 19.67 | 0.6 | ||||
| 3150 | 35 38.5 | 10.5 6.3 3.15 | 7 | 3.04 | 23.09 | 0.56 | |
| 4000 | 3.62 | 27.36 | 0.56 | ||||
| 5000 | 4.32 | 31.38 | 0.48 | ||||
| 6300 | 7.5 | 5.25 | 35.06 | 0.48 | |||
| 8000 | 35 38.5 | 11 10.5 6.6 6.3 | 7.5 | YNd11 | 7.20 | 38.48 | 0.42 |
| 10000 | 8.71 | 45.32 | 0.42 | ||||
| 12500 | 8 | 10.08 | 53.87 | 0.4 | |||
| 16000 | 12.16 | 65.84 | 0.4 | ||||
| 20000 | 14.40 | 79.52 | 0.4 |
This series of tranformer are more advanced in design. The material, the manufacturing structure and process has been improved greatly.
Reliable operation, low loss and low noise, this SZ11 can adjust voltage manually, electrically or automatically. It can ensure the stability of the output voltage.
Through capacity regulating, no-load loss of transformer is comprehensively reduced by 50%-70%, reactive powerloss of grid is reduced by more than 20%, and reactive power line loss is reduced by more than 20%.
Switching process of capacity regulating is completed within 20ms-40ms, which could keep the power supplycontinuity of low side.















Q1: Do you manufacture the transformers by yourself? |
A1: Our factory is a professional manufacturer of high voltage power transformers. The factory was founded in the year of 2000, and we have rich experience in design and manufacturing transformers. |
Q2: How long is your delivery time? |
A2: In general, production time takes 20 days after the order is confirmed. Longer time make take depends on order quantity. |
Q3: What is your price term and payment term. |
A3: We offer EXW, FOB and CIF. Payment term is 30% deposit, balance before delivery. |
Q4: Do you offer customize service? |
A4: Yes. The voltage level, capacity and other specific requirements can be customized. |
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