Three Phase 400kva 11kv 400v Power Transformer

Wenzhou XiFa Electric Power Equipment Co. provides one stop personalized services, covering from scheme selection, drawing connection, production customization, to  logistics delivery, installation guidance, and after sales maintenance.Three phase 400kva 11kv 400v power transformer is a highly efficient and robust electrical equipment. It can convert power between three phase electrical circuits and is designed for a variety of industrial and commercial applications, including power distribution, machine control, and lighting systems.

The core is made of high-grade silicon steel, which can reduce energy loss. The windings are made of copper or aluminum to ensure efficiency and durability. The three phase 400kva 11kv 400v power transformer is of oil immersed design, with a mineral oil cooling system that also serves as insulation. The oil tank is sealed to prevent leakage and protect the internal components. Safety devices include pressure relief devices and temperature indicators for monitoring overheating conditions.

The three phase 400kva 11kv 400v power transformers undergo strict quality assurance measures to ensure they meet the highest industry standards. From the procurement of raw materials to the shipment of finished products, we follow a rigorous quality control process. Our quality inspection team conducts multiple inspections and tests on each transformer to ensure it complies with relevant international quality standards and regulations.

Our R&D team is composed of engineers and technical experts, all with extensive experience. Through extensive research and testing, this three phase 400kva 11kv 400v power transformer was designed, and we are constantly committed to developing innovative solutions that exceed customer expectations. At the same time, to ensure that our products remain at the forefront of technological advancement. We collaborate with industry leading experts to continuously improve existing products and design new products that meet customer needs.

Technical parameter:

Q:Why does the industry standardize on the Dyn11 connection group instead of Yyn0? What are the key technical advantages?

A:This three phase 400kva 11kv 400v power transformer adopts the mainstream Dyn11 connection group and is a standardized design for 10kV/11kV power distribution transformers.

Compared to the old Yyn0 connection, the core advantages lie in three points: First, it has extremely strong resistance to three phase load imbalance, capable of withstanding single phase load imbalance of up to 25% on the low voltage side, suitable for unbalanced power distribution scenarios such as residential areas, commercial complexes, and scattered industrial loads; Second,  three phase 400kva 11kv 400v power transformer effectively suppresses 3rd and 9th harmonics, purifies the power quality of the low voltage output, and protects the precision electrical equipment at the rear end; Third, the neutral point displacement voltage is extremely low, and the three phase output voltage is more symmetrical, avoiding the high single phase voltage burning the load equipment, fully meeting the requirements of modern low voltage distribution system national standards.

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