EnergiaOn products

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Auto Transformer
Auto TransformerAuto Transformer

Voltage level: 2×27.5kV/27.5kV
Capacity: 5000kVA~40000 kVA
Technical characteristics
Low no-load loss, low no-load current, low noise
The cores are wound tightly without any juncture, reducing magnetic resistance and noise; Its cross section is inscribed polygon, high fill factor. After high temperature annealing of eliminating stress, no-load loss is greatly reduced.
Low impedance
Use multiple splitting structures to reduce impedance and adjust core diameter, number of turns, splitting group to make the impedance value small enough.
Strong overload capacity
With oil flow guide control technology, the quantitative calculation of the oil flow, optimize the structure of oil circuit, reduce the hot-spot coefficient, to ensure that under the condition of rigorous overloading load, the winding hot-spot temperature does not exceed 140 ℃.
Strong anti-short circuit ability
By analyzing and calculating the worst short circuit, adopting high strength wire and effective support to strengthen the structure, adjusting the coil distribution to ensure all stress have enough margin. Self-developed winding technology can make the coils wind tightly.

110kV traction transformer
110kV traction transformer