Zhejiang Zuoao Technology Co., Ltd is a professional manufacturer of intelligent controller (PCBA) and power transformer products. Our single phase ei power transformer includes El transformer for lighting, El transformer for audio, El transformer for industrial control, El lsolation transformer for knitting machine, El transformer for UPS, etc. A single-phase EI power transformer is primarily used in low-voltage household appliances and applications where only single-phase power is required, including: residential power distribution, lighting systems, heating devices, small motors, electronic equipment power supplies, and charging devices for portable electronics.
Single phase EI power transformer, is used to isolate the mains electricity or to increase and decrease the mains voltage as isolated. It is used in panel and machine manufacturers and similar industrial sectors. In addition, UPS isolation transformers are used for the isolation of new technology 1-1 UPSs. 1 phase transformers are produced as 50VA - 100 KVA in the voltage range of 1V - 1,000 V as standard. Special production is avaible in case of higher voltage demands. Screened according to special circumstances.
Enhanced Energy Efficiency
These transformers are designed to minimize energy losses during the power conversion process, resulting in reduced electricity consumption and improved overall system efficiency. By upgrading to single-phase low-voltage distribution transformers, you can achieve significant energy savings, ultimately leading to lower operational costs and a reduced carbon footprint.
Compact Size and Flexibility
These transformers are specifically engineered to occupy minimal space while providing optimal performance. Moreover, their flexible nature allows easy integration into existing power distribution systems, enabling seamless upgrades without major infrastructure changes.
Enhanced Power Quality
Maintaining a stable and consistent power supply is important for the smooth functioning of electrical equipment and appliances. Single-phase low-voltage distribution transformers excel at delivering enhanced power quality. They effectively regulate voltage levels, ensuring a steady and reliable power supply to connected loads.
Cost-Effective Solution
Their efficient design, energy-saving capabilities, and long service life contribute to significant cost savings over the transformer's lifespan. Additionally, these transformers require minimal maintenance, reducing operational expenses and downtime.
Increased Voltage Regulation
Voltage regulation is important for maintaining a steady voltage output, especially during peak demand periods. Single-phase low-voltage distribution transformers are designed to provide excellent voltage regulation capabilities, ensuring a consistent electricity supply to connected loads.
Structure of Single Phase EI Power Transformer
The name associated with the construction of a transformer is dependent upon how the primary and secondary windings are wound around the central laminated steel core. The two most common and basic designs of transformer construction are the Closed-core Transformer and the Shell-core Transformer.
In the "closed-core" type (core form) transformer, the primary and secondary windings are wound outside and surround the core ring. In the "shell type" (shell form) transformer, the primary and secondary windings pass inside the steel magnetic circuit (core) which forms a shell around the windings as shown below.

In both types of transformer core design, the magnetic flux linking the primary and secondary windings travels entirely within the core with no loss of magnetic flux through air. In the core type transformer construction, one half of the winding is wrapped around each leg (or limb) of the transformer's magnetic circuit as shown above.
The coils are not arranged with the primary winding on one leg and the secondary on the other but instead half of the primary winding and half of the secondary winding are placed one over the other concentrically on each leg in order to increase magnetic coupling allowing practically all of the magnetic lines of force go through both the primary and secondary windings at the same time.
This means that the magnetic flux circulating around the outer limbs of this type of transformer construction is equal to Φ/2. As the magnetic flux has a closed path around the coils, this has the advantage of decreasing core losses and increasing overall efficiency.
Installation requirements of Single Phase EI Power Transformer
The following conditions apply to transformer installations:
• Transformer impedance must match
• Parallel conductors are not permitted in the intermediate system
• Maximum of two transformers
• Maximum allowable voltage 750V
Common Applications of Single Phase EI Power Transformers
Single phase EI power transformers find widespread applications in various industries due to their versatility and efficiency.
Power Distribution
Single-phase transformers are essential in power distribution systems, where they help to step up or step down voltages for transmission over long distances. By adjusting voltage levels, transformers ensure efficient power distribution and minimize energy losses.
Voltage Regulation
In many electrical systems, maintaining a stable voltage is crucial for the proper operation of equipment and devices. Single-phase transformers play a vital role in voltage regulation by adjusting voltage levels to meet specific requirements.
Industrial Applications
Single-phase transformers are widely used in industrial settings for various applications, such as motor control, lighting, and HVAC systems. These transformers provide the necessary voltage levels to power different types of equipment and machinery.
Residential Uses
In residential buildings, single-phase transformers are commonly used for household appliances, lighting, and other electrical devices. By stepping down the voltage from the main power supply, transformers ensure safe and efficient operation of various household equipment.
Renewable Energy Systems
With the growing demand for renewable energy sources, single-phase transformers play a crucial role in solar and wind power systems. These transformers help to convert and regulate the voltage generated by renewable energy sources for use in the grid.
Why Choose Us?
Company Experience
As a professional transformer manufacturer, Wanji was founded in 1987 and merged by Zhuoao in 2022. It is a professional manufacturer of intelligent controller (PCBA) and power transformer products.
Company Scale
The company has two production plants, controller division and power division, covering an area of 40,000 square meters, and currently has more than 500 employees.
Production Guarantee
Under ISO9001 and ISO14001 system, the company implements ERP and MES management, and all materials meet RoHS requirements. Our products carry UL/cUL, CE, RoHS, CQC, CSA, ETL, TUV, GS etc.
Production Scale
Power Supply Dept has 12 Toriodal Transformer Production Lines, 10 EI Transformer Production Lines; PCBA Dept has 5 SMT production lines, 8 AI production lines, ICT, FCT, AOI and other automatic testing equipments.
FAQ
We're professional single phase ei power transformer manufacturers and suppliers in China. If you're going to buy high quality single phase ei power transformer, welcome to get more information from our factory. Also, customized service is available.
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