Yongce Group Co., Ltd.
Complete Product Introduction
1. Product Brief Introduction
The SZ11-200-2000/10 three-phase oil-immersed on-load tap-changing distribution transformer is an outdoor type product. The normal operating conditions are: altitude not exceeding 1000m, ambient temperature maximum +40℃, minimum -25℃. The special operating conditions are: altitude exceeding 1000m, ambient temperature maximum +40℃, minimum -45℃ (please specify in detail when placing an order). The installation site shall be an environment without corrosive gas and no obvious dirt.
2. Model Meaning & Explanation
The coding of the product model contains the core structural characteristics and parameter information of the transformer. The specific meaning of each part of the model is as follows:
11: Performance level code
The number after 11: Rated capacity (kVA)
The number after the slash: Voltage class (kV)
3. Executive Standards & Specifications
The design, production and inspection of the product are strictly in accordance with the following national and international standards to ensure product quality and performance compliance:
- GB1094.1-2013 Power Transformers
- GB1094.3-2003 Power Transformers
- GB1094.5-2008 Power Transformers
- GB/T1094.4-2005 Power Transformers
- GB/T6451-2008 Technical Parameters and Requirements for Three-Phase Oil-Immersed Power Transformers
- International Standard IEC76
4. Structural Characteristics
- Compared with S9 series products, the S11 series products have reduced the no-load loss by an average of 30%, the average temperature rise is reduced by 10K, the service life of the product is doubled, and it can still operate for a long time even under 20% overload condition; the average operating noise is reduced by 2-4 decibels.
5. Main Technical Parameters
| Rated Capacity (kVA) | Voltage Combination (kV) | Connection Symbol | No-load Loss (W) | Load Loss (W) | Impedance Voltage (%) | No-load Current (W) | ||
|---|---|---|---|---|---|---|---|---|
| High Voltage | Tap (%) | Low Voltage | ||||||
| 200 | 10, 6.3, 6.0 | ±4×2.5% | 0.4 | Yyn0 or Dyn11 | 385 | 2910 | 4.0 | 1.2 |
| 250 | 450 | 3420 | 1.1 | |||||
| 315 | 535 | 4100 | 1.0 | |||||
| 400 | 640 | 4960 | 0.9 | |||||
| 500 | 770 | 5900 | 0.9 | |||||
| 630 | 960 | 7270 | 0.8 | |||||
| 800 | 1120 | 8890 | 0.7 | |||||
| 1000 | 1360 | 10430 | 0.6 | |||||
| 1250 | 1560 | 12400 | 0.6 | |||||
| 1600 | 1920 | 14800 | 4.5 | 0.6 | ||||
| 2000 | 2020 | 18200 | 0.5 | |||||
Notes:
1. The weight and external dimension data in the table are for reference only, and no separate notice will be given if there are changes.
6. Ordering Notes
When placing an order, please confirm the special operating conditions and technical parameters of the product to ensure accurate customization and delivery.
