S13 Series Fully Sealed Laminated Core Transformers
The S13 series fully sealed, stacked-core oil-immersed transformers utilize high-permeability cold‑rolled grain-oriented silicon steel sheets with a thickness of 0.23–0.3 mm for the core. They feature 45-degree full‑lapped joints and a stepped stacking method, with no punching and binding using semi‑dry, non‑woven glass fiber tape, effectively reducing no‑load losses and operating noise.
S13-M·RL Series Three-Dimensional Rolled Core Transformer
The S13-M·RL series of three-dimensional core oil-immersed transformers breaks away from the traditional planar design and adopts a three-phase symmetrical three-dimensional structure. The magnetic circuits of the transformer’s three-phase cores are perfectly symmetrical, significantly reducing magnetic reluctance and leading to a marked decrease in excitation current and no-load losses. The core is fully solidified into a single unit, greatly enhancing its mechanical strength and seismic resistance, while also lowering operating noise and resulting in a more compact structure. With numerous advantages such as energy efficiency, environmental friendliness, stable and reliable performance, and anti-theft features, these transformers are fully aligned with China’s national energy conservation policies.
S(B)H15 Series Amorphous Alloy Core Transformers
The S(B)H15 series amorphous alloy oil-immersed transformers feature low magnetizing power, high resistivity, and minimal eddy current losses, resulting in exceptionally low no-load performance. They are particularly well suited for use in urban residential communities and on rural power grids with low load factors and long no‑load periods. These transformers are the ideal equipment for lighting and power consumption in both urban and rural areas, and represent an ideal replacement and upgrade for distribution transformers.
S(B)H21 Series Amorphous Alloy Core Transformers
The S(B)H21 series amorphous alloy oil-immersed transformers adopt a three-dimensional wound core structure. Compared with traditional laminated cores, they feature symmetrical magnetic circuits, minimal leakage flux due to the absence of air gaps in the magnetic path, lower no-load losses, and reduced noise levels.
SZ13 Series On-Load Tap Changer and Voltage Regulating Transformer
The SZ13 series on-load tap-changing voltage and capacity regulating transformers are suitable for applications with seasonal load variations. When the load is light (or no load), the transformer can be switched to a lower tap, reducing its capacity and thereby minimizing core losses. These transformers are ideal for users in rural areas, forestry operations, salt farms, and other locations where electricity consumption fluctuates significantly and the cycles of change are relatively long. Since being put into operation, they have performed well, successfully achieving the intended goals of high reliability, substantial energy savings, convenient operation, and low manufacturing costs.
S20 Series Silicon Steel Core Transformers
The S20 series fully sealed oil-immersed transformers feature low losses, low noise, and zero pollution. They are suitable for outdoor (or indoor) installation and use, making them ideal distribution equipment for extensive transmission and distribution networks in factories, rural areas, and urban centers.
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