The function of a power transformer is to convert high-voltage (transmission line) electricity into low-voltage (end-user) electricity. A transformer is an electrical device that transmits electrical energy based on the principle of electromagnetic induction.
Transformers are widely used in power plants, substations, power distribution systems, and industrial equipment, serving as single-phase or three-phase power units and as step-down voltage regulators. This article explores the various applications of power transformers.
What are the uses of a power transformer?
A power transformer is a device designed to transfer large amounts of electrical energy. It utilizes electromagnetic fields-generated within metal coils-to store electrical energy; when activated, the transformer releases this energy in the form of an electric field.
In national power grids, transformers are used to facilitate the conversion between alternating current (AC) and direct current (DC). AC can be converted into DC at power plants, allowing the electricity to be transmitted over long distances via power lines or grid infrastructure.
Union Power Transformers
Union Power transformers are high-quality units designed to provide reliable service to customers.
Features such as ease of installation and low maintenance costs ensure optimal, long-term performance, even under harsh weather conditions. Below are some examples of Union Power transformer products.
Dry-Type Transformers
Dry-type power transformers are specialized electrical devices widely used in industrial and mining enterprises, as well as in civil construction, primarily for stepping down distribution voltage levels. These transformers utilize high-quality silicon steel sheets, which offer excellent electrical conductivity.
The magnetic core is manufactured using advanced vacuum-pressure casting technology, resulting in a compact, lightweight, and space-efficient design. The windings consist of enameled wire, allowing the unit to be installed indoors without the need for an oil tank or complex cooling systems, while maintaining a high safety factor. Unlike conventional transformers, these units eliminate the risk of fire caused by oil leaks, making them ideal for indoor use or locations near residential areas.
Oil-Immersed Transformers
Oil-immersed power transformers offer superior performance, reliable quality, and cost-effective pricing. Its design and manufacturing incorporate advanced technologies and processes used in similar products both domestically and internationally.
It is suitable for use in facilities such as power plants and substations. The core components of CHINT Power's oil-immersed transformers include the iron core, windings, oil tank, oil-sealing system, and cooling system. The oil tank features a fully sealed design.
The insulation structure of CHINT Power's oil-immersed transformers provides significant advantages in terms of reliability, heat resistance, and mechanical strength. The iron core utilizes a five-limb or six-limb configuration, ensuring high mechanical strength.
The windings employ an innovative interleaved structure, which helps to reduce harmonic losses during short circuits, enhance short-circuit withstand capability, improve impulse voltage withstand strength, and lower noise levels.
The primary function of a power transformer is to convert alternating current (AC) to direct current (DC). Consequently-given its ability to convert AC to DC and vice versa-it is sometimes referred to as an AC-to-DC converter or a DC-to-AC converter.
