Zhejiang Zuoao Technology Co., Ltd is a professional manufacturer of intelligent controller (PCBA) and power transformer products. Our EI power transformer includes El transformer for audio, El transformer for UPS, El transformer for lighting, EI medical power transformers, EI power control transformers, multiple EI secondary power transformers, etc. EI power transformers are commonly used in a variety of applications including powering industrial machinery, medical devices, electric vehicle charging stations, and general power supply systems due to their compact design and ability to efficiently step up or down voltage levels.
EI power transformer is a traditional transformer. The core of EI transformer is combined by lamination E and I, so it is called EI transformer or laminated transformer. EI transformers are widely used in electronic equipment, not only it is an old type transformer, but also it is an economic transformer. It is usually used as power transformer at 50-60Hz.
Benefits of EI Power Transformer
In outdoor landscape lighting, EI power transformers have plenty of benefits such as:
Being Cost-Effective
EI core transformers have simple and mature production processes that make them an affordable option.
Availability of Components
If parts of an EI transformer are damaged, it will be easy to find a replacement.
Widely Used
Other than outdoor landscape lighting, EI core transformers can be applied in various other ways and fields.
Core Design
The design of the core is a closed magnetic circuit, which maximizes energy transfer efficiency and reduces magnetic flux leakage.
Types of EI Power Transformer
Single Phase EI Power Transformer
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; Essentially anywhere a lower voltage needs to be supplied from a standard AC power line.
Isolation EI Power Transformers
An isolated EI power transformer, is primarily used to electrically isolate two circuits, preventing electrical shock hazards, suppressing electrical noise in sensitive equipment, and supplying power to devices that may not be at ground potential, making it crucial in applications like medical devices, laboratory instruments, computers, and other sensitive electronics where stable power and protection against electrical interference are critical.
In an E-I structure, the matching "E" and "I" components are stamped from sheets of thin grain-oriented electrical steel that are later stacked to create the core. The primary and secondary windings are wound on bobbins. Multiple bobbins are placed on spindles and spun in order to apply the windings.
This method of using bobbins allows for automation that reduces the manufacturing times and also provides insulation between the windings and the core. The E-I core laminations are stacked inside the bobbins to complete the transformer. Their ease of construction makes standard E-I transformers very economical to manufacture, which is their primary advantage.
Although economical to manufacture, standard E-I transformers do have several limitations. As the punched laminations are stacked to form the core structure, small imperfections and burrs in the butting edges of laminations create an effective "air gap" which reduces the operating flux levels. Decoupling of windings is more common with linear construction, and as a result, leakage inductance and stray capacitance are naturally higher. Additionally, the loose laminations will vibrate at the fundamental frequency, which introduces disturbing hum (mechanical noise). All these disadvantages result in a transformer of larger size with less efficiency.
Main Application Areas of EI Power Transformers
Household Appliances
EI transformers are widely used in household appliances such as televisions, microwave ovens, and audio systems, ensuring the safe operation of these devices under varying voltages.
Industrial Equipment
In industrial production, EI transformers are employed in motor control systems and automation equipment for power regulation and protection.
Power Systems
In power transmission, EI transformers are used for stepping up or stepping down voltages, improving transmission efficiency and reducing losses.
Communication Devices
EI transformers are also used in communication devices to help regulate the voltage and frequency of signal transmission, ensuring signal stability.
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 ei power transformer manufacturers and suppliers in China. If you're going to buy high quality ei power transformer, welcome to get more information from our factory. Also, customized service is available.
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