800kva transformer-XinYa China manufacturer
China 800kva transformer Supplier,Factory 27 years in GuangDong
By Xinya Power editorial team
Engineering Specifications of the 800kVA Transformer
The 800kVA transformer represents a high-capacity solution within the IEC standard rating series, specifically engineered for heavy industrial applications and large-scale infrastructure projects. This unit is typically deployed to step down medium voltage (11kV, 22kV, or 33kV) to low voltage (400V/230V) in facilities with substantial power density, such as automotive manufacturing plants, data centers, and high-rise commercial complexes.
From a technical design perspective, the 800kVA rating requires advanced thermal management systems to maintain operational efficiency. Oil-immersed variants typically utilize ONAN (Oil Natural Air Natural) cooling with expanded radiator banks to dissipate heat generated by core and winding losses. For indoor substations where fire safety is critical, Cast Resin Dry-Type transformers are specified. These units utilize epoxy resin encapsulation to provide high mechanical strength and resistance to environmental contaminants like moisture and conductive dust.
Key electrical parameters include a vector group of Dyn11, which facilitates the handling of unbalanced loads and suppresses third-harmonic currents. The percentage impedance is generally engineered between 5% and 6% to limit prospective short-circuit currents while ensuring adequate voltage regulation during motor starting sequences. Modern 800kVA designs increasingly incorporate amorphous metal cores or high-grade electrical steel to minimize no-load losses, aligning with international energy efficiency standards like IEC 60076-20.
China XINYA Power Cables Co., Ltd Email: [email protected] Email: [email protected] whatsapp: +86 15289885778 Website: https://www.supplytransformer.com
