Single-Phase Autotransformer with Three Windings and No Excitation
Oil-immersed transformers, with their extensive history in power equipment, have played a significant role in the evolution of the power industry. Their advanced technology and diverse applications serve as a link between historical practices and future innovations, driving the industry's progress.
Product Details：Single-Phase Autotransformer with Three Windings and No Excitation
Oil-immersed transformers provide solutions for different power demands through their versatile customization options. By adjusting voltage levels and capacity sizes to meet client specifications, these transformers ensure an ideal fit for enhanced operational efficiency within the power system.
Parameter：
Rated Capacity | Voltage ratio (KV) | Vector Group | No-load Loss | No-load Current | Full-load Loss | Impedance | |||
(kVA) | HV | Tapping Range | LV | (kW) | (%) | (kW) | Step -Down | Step -Up | |
6300 | 110 ±8× 1.25% | 35 37 38.5 ±2×2.5% or ±5% | 6.3 6.6 10.5 11 | YNd110d11 | 12 | 0.6 | 47 | H-M 10.5
H-L 17-18
M-L 6.5 | H-M 17-18
H-L 10.5
M-L 6.5 |
8000 | 14.4 | 0.6 | 56 | ||||||
10000 | 17.1 | 0.55 | 66 | ||||||
12500 | 20.2 | 0.55 | 78 | ||||||
16000 | 24.2 | 0.5 | 95 | ||||||
20000 | 28.6 | 0.5 | 112 | ||||||
25000 | 33.8 | 0.45 | 133 | ||||||
31500 | 40.2 | 0.45 | 157 | ||||||
40000 | 48.2 | 0.4 | 189 | ||||||
50000 | 56.9 | 0.4 | 225 | ||||||
63000 | 67.7 | 0.35 | 270 | ||||||
1. Selection Precautions
Secure Packaging & Transport: Maintain packaging integrity, ensuring clear and attractive printing, as well as comprehensive labeling (manufacturer's details, trademarks). During shipment, exercise caution to prevent impacts and shaking, keeping the product in pristine condition.
Safety Assurance: Ensure the transformer complies with all relevant safety regulations, both nationally and within the industry, complemented by comprehensive safety features.
Environmental Considerations: Emphasize the transformer's eco-credentials, selecting models that minimize noise and emissions, adhering to environmental standards.
2. Transformer Applications in Renewable Energy
WTGs: In the electricity generation process from wind turbine generators (WTGs), the wind turbine's rotation drives the generator to produce electricity, which is usually in the form of low voltage alternating current (AC). The transformer’s role is to elevate this low-voltage power to a higher voltage (e.g., 35kV or higher) so that it can be transmitted through lines to the grid located away from the power farm.
Integrated systems: In large wind farms, multiple WTGs are often connected to a substation where a transformer aggregates and steps up the power generated by all units, ensuring efficient power delivery. Furthermore, the transformer is capable of handling voltage and frequency differences among various WTGs, ensuring stable system operation.
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