10kV SH15/SH16 Series Amorphous Alloy Oil-Immersed Power Transformers

10kV SH15/SH16 Series Amorphous Alloy Oil-Immersed Power Transformers Overview

The SH15/SH16 series amorphous alloy oil-immersed transformers combine a hermetically sealed design with an amorphous alloy strip core. Featuring low magnetizing loss and 3~6 times higher resistivity than conventional silicon steel, the amorphous alloy core significantly reduces eddy-current losses and achieves up to 60% lower no-load loss than GB/T 6451 requirements. With outstanding energy-saving performance and reliable operation, the series is well suited for modern distribution network upgrades.

Product Features

• The transformer core is made of amorphous alloy strip, delivering exceptionally low no-load current and no-load loss for improved energy efficiency.

• The amorphous alloy core adopts a three-phase, five-limb design, reducing transformer height. The outer limbs provide a flux path for harmonic and zero-sequence flux, helping reduce leakage-reactance voltage drop and improve power quality.

• For ratings above 100kVA, the low-voltage winding uses a cylindrical copper foil structure, while the high-voltage winding uses a multi-layer cylindrical structure. This design ensures balanced ampere-turn distribution and low leakage flux. HV and LV windings are wound under controlled conductor tension and thermally formed to enhance mechanical strength and short-circuit withstand capability.

• The active part adopts a non-core-lifting design and is processed through vacuum drying and vacuum oil filling. The transformer is equipped with a hermetically sealed tank without oil conservator.

• The sealed design isolates the insulating oil and insulation system from ambient air. No oil replacement is required under normal operating conditions, reducing maintenance requirements and extending service life.

• The additional investment compared with conventional silicon steel core transformers can typically be recovered within approximately three years through lower energy losses and operating costs.

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Main Components

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