SH15 series amorphous alloy fully enclosed transformer
Main Functions And Features
SH15 series amorphous alloy full-sealed transformer is an epoch-making technology and trans-century "Green" product The iron base amorphous alloy core has high saturation magnetic inducbon intensity, low loss (equivalent to 1/3-1 of silicon sheet), low corrective force and low excitation current and good temperature stability Compared with S9 series with silicon sheet, the no-load loss of the transformer with amorphous alloy core is reduced by 70—80%, no-load current reduced by 50% and load loss reduced by 20%.
The amorphous alloy is a novel energy-saving material made with a fast and abrupt-solidification process and the metal atoms arrange in a disordered amorphous state and its structure completely different from crystal of silicon steel makes it easily magnetized and de-magnetized. When this novel material is used in transformer core, a running transformer may be easily subjected to 120 cycles/second of magnetizing and de-magnetizing process and thus no-load loss of the core is greatly reduced If the said alloy is used in oil-immersed transformer, escape of harmful gases such as CO2, SO2 and NOX may be reduced and thus it is known as "green material" of21st century.
A Model SH15 amorphous alloy product adopts a single-frame or three-phase five-legged spiral core. The core is clamped with sheet-formed frame structure and the low-voltage coil is of a foil winding type so as to render a low loss and a high short-circuit withstand. It has advanced and rational structure and its overall performances reach international advanced level.
Using effect
Three-phase amorphous alloy core distribution transformer saves considerable electrical energy compared with the new S9 distribution transformer.
Taking 800kVA as an example, △ P0 has the same load loss of 1.05kW;, then △ Pk=0, calculating the annual reduced power loss of one product:
△ Ws=8760(1.05+0.62 × 0) =9198kW h
Through the calculation, the energy-saving effect of three-phase amorphous alloy core distribution transformer series is different. Because the fuel tank is designed with a fully sealed structure, the oil in the transformer does not contact with the outside air, prevents the oxidation of the oil, extends the service life of the product, and saves maintenance costs for users.
Development prospect of amorphous alloy transformer
If the amorphous alloy transformer can completely replace the new S9 series distribution, such as when the annual demand of Class 10kV distribution transformer is calculated at 50 million kVA, the power can be reduced by more than 10 billion kW h a year. At the same time, it can also bring the good environmental benefits of building less power plants and emitting less greenhouse gases to the atmosphere, which will greatly reduce the direct pollution to the environment and make it become a new generation of veritable green environmental protection products. In short, in the development and transformation of urban and rural power network system, if the country can promote a large number of three-phase amorphous iron core distribution transformer products, it will eventually obtain the benefits of energy conservation and environmental protection.
