Low-noise 11kV 500kVA Oil-Immersed Power Transformer
Product Overview
++++Overview
Faraday offers a full range of distribution transformers featuring high reliability, durability, and high energy efficiency to meet the demands of utility, industrial, and commercial applications. Faraday oil-immersed transformers are manufactured in strict compliance with rigorous industry and international standards. The products naturally conform to key standards including those of the International Electrotechnical Commission (IEC) and the German Association for Electrical, Electronic & Information Technologies (VDE), and only high-quality raw materials are used throughout the production process. Professional technical personnel strictly implement these high standards in daily production.
++++Standard Features
1. Capacity range: 15 kVA–10,000 kVA, with a maximum voltage rating of 44 kV
2. System voltage: up to 36 kV, with a Basic Impulse Level (BIL) of 200 kV
3. Cooler: corrugated tank or radiators
4. Oil preservation method: fully sealed or conservator type (free-breathing)
5. Tap changer: off-circuit tap changer (DETC) or on-load tap changer (OLTC)
6. Cooling medium: mineral oil, Midel insulating fluid
7. Steel core clamping system
8. HV multi-layer windings
9. LV foil windings or layer windings
10. Winding conductor material: aluminum or copper
11. High temperature class transformers
12. Low-noise solutions
13. High-efficiency transformers (reduced losses)
14. Oil-immersed (liquid-immersed)
15. Suitable for special operating conditions
16. Advanced manufacturing facilities
17. Wooden packing cases
18. Drawings provided in 3D format
19. Special tests, e.g., zero-sequence impedance test
20. Cooling methods: ONAN, ONAN/ONAF, KFAF, KFW
++++Service Conditions
a) Suitable for indoor or outdoor installation;
b) Ambient air temperature: maximum: +40°C; minimum: -30°C;
c) Humidity: monthly average relative humidity: 95%; daily average relative humidity: 90%;
d) Altitude: maximum installation altitude: 2000 m;
e) Maximum wind speed: 35 m/s;
f) No significant corrosive or flammable gases, vapors, or other contaminants in the surrounding air;
g) No frequent severe vibration.
Note: * If the service conditions exceed the above range, please consult the manufacturer's technical department when ordering.
++++ Type Tests
1. Voltage ratio, polarity, and phase relationship tests at all tap positions
2. Measurement of DC resistance of all windings
3. Measurement of no-load current and no-load loss
4. Measurement of load loss at rated current and rated frequency
5. Measurement of impedance voltage
6. Induced overvoltage test and applied voltage withstand test
7. Impulse voltage withstand test
8. Noise level test
9. Oil leakage test
10. Temperature rise test and, after measurement of hot resistance of HV-LV windings, a one-hour overload test at 150% rated current
| Rated Power | Load Loss | No-Load Loss | No-Load Current (%) | Impedance (%) |
| S11-30 | 630 | 100 | 2.1 | 4 |
| S11-50 | 910 | 130 | 2 | 4 |
| S11-63 | 1090 | 150 | 1.9 | 4 |
| S11-80 | 1310 | 180 | 1.8 | 4 |
| S11-100 | 1580 | 200 | 1.6 | 4 |
| S11-125 | 1890 | 240 | 1.5 | 4 |
| S11-160 | 2310 | 270 | 1.4 | 4 |
| S11-200 | 2730 | 330 | 1.3 | 4 |
| S11-250 | 3200 | 400 | 1.2 | 4 |
| S11-315 | 3830 | 480 | 1.1 | 4 |
| S11-400 | 4520 | 570 | 1 | 4 |
| S11-500 | 5410 | 680 | 1 | 4 |
| S11-630 | 6200 | 810 | 0.9 | 4.5 |
| S11-800 | 7500 | 980 | 0.8 | 4.5 |
| S11-1000 | 10300 | 1150 | 0.7 | 4.5 |
| S11-1250 | 12000 | 1360 | 0.6 | 4.5 |
| S11-1600 | 14500 | 1640 | 0.6 | 4.5 |
Packaging and Shipping
Long-term sea freight solution + airworthy wooden cases
Wooden case packaging options:
1. One unit per wooden case
2. Two units per wooden case, for cost savings
Our Services
1. Rapid pre-sales response to help you secure orders
2. Attentive service during the production phase, keeping you informed at every step of the manufacturing process
3. Stable and reliable quality, eliminating after-sales concerns
4. Extended warranty protection for worry-free purchasing
