3 Phase Power Transformer
The 3 Phase Power Transformer Manufacturer!
Baoding Yuanchen Transformer Manufacturing Co., Ltd. It has strong technical strength and has formed a series of production and service capabilities from product development and research, manufacturing and processing to after-sales service. The main products include oil immersed power transformers of 35KV and below, dry-type transformers, mobile box type transformers, prepaid control high voltage metering boxes, high and low voltage switchgear, charging piles, and nearly a hundred specifications in six categories. The annual production reaches 5 million KVA.
Our Certifications
Establish a quality assurance system strictly in accordance with the IS09001 model, covering the entire process from procurement to production and service, to ensure that the entire product process is under control. And obtained the IS09001-2015 quality system certification certificate from Hyde International Certification Co., Ltd. in October 2020.
Production Equipment
Core processing equipment, coil winding equipment, insulation treatment equipment, assembly and final assembly equipment, testing and quality inspection equipment.
Sale Service
Suppliers provide technical support to customers online, in addition to offering maintenance plans and repair services to ensure the normal operation of transformers.
Benefits Of Using A Three-Phase Transformer
Efficiency
Manages high-load power with less energy loss.
01
Cost-effective
Lowers the cost of installation and maintenance in comparison with three-phase single-phase transformers.
02
Space-saving
Compact design takes up smaller space for industrial installations.
03
Reliability
Provides a steady power supply, which reduces the possibility of operating downtime.
04
Reduced Transmission Losses
Facilitates effective power transmission over long distances.
05
Insulating oil/gas: Used as an insulating and cooling medium.
Windings: Made of copper or aluminum and insulated properly.
Core: Made of high-grade silicon-coated steel laminations to reduce eddy current losses.
Conservator tank: Houses the insulating oil and maintains the required oil level.
Breather: Allows air in/out and protects from pressure variations.
Cooling system: Can be oil, air, or forced water-cooled based on power rating.
Bushings: Insulated entries for high voltage bushing leads.
On load tap changer: Helps regulate the output voltage.
Temperature sensors: Monitors hot-spot temperature of winding.
Standard Sizes Of 3-Phase Transformers
Low Power transformers
These types of power transformers typically have 5 kVA or 10 kVA and 500 kVA ratings. They are frequently used in light commercial, manufacturing, and home environments.
Medium Power Transformers
These types of transformers have kVA ratings that commonly vary from 500 kVA to 10 MVA (for example, 1 MVA, 2 MVA). They have a frequent place in power distribution systems, medium-sized retail establishments, and applications in the industry.
High Power Transformers
These include transformer sizes with high power and have kVA ratings from 10 MVA, 20 MVA, 25 MVA, or even higher. Large manufacturing facilities, nuclear plants, substations that operate, and utility transmission lines are common places to find these kinds of transformers in use.
Three-phase transformer configuration
Delta-Delta (D/D)
In a delta transformer (designated D/D), both the primary and secondary windings are connected in a delta configuration. This configuration has several advantages. If one of the three coils malfunctions or fails, the remaining two undamaged coils can still provide three-phase power at approximately two-thirds of the original transformer output.
Star-Star (Y/Y)
Of the four common three-phase transformer configurations, the Y/Y configuration is the most cost-effective choice and provides seamless power transfer with no phase shift between the primary and secondary windings. Having a grounded (neutral) wire on both the primary and secondary sides provides versatility to deliver power to both three-phase and single-phase loads.
Delta-Star (D/Y)
The primary delta and secondary star (D/Y) configuration stands out for its ability to provide a three-wire balanced load to a power generation facility, seamlessly adapting to a variety of applications. This configuration is commonly used to power commercial, industrial, and high-density residential areas.
Star-Delta (Y/D)
With a high voltage input, the voltage on a single coil is reduced by a factor of √3, which reduces the number of winding turns and insulation. This design can be used as a step-down transformer, mainly at the end of a transmission line. It also includes a ground wire (neutral) on the power supply side.
Types Of Three Phase Transformer
Three Phase Core Type Transformer
In a three-phase core type transformer, the magnetic core has three limbs, and each limb contains both the primary and secondary windings for one phase. The limbs are connected at the top and bottom by yokes. This construction allows the magnetic flux of the three phases to share common return paths through the outer limbs, making it a common and relatively straightforward design for medium to high voltage applications.
Three Phase Dry Type Transformer
Three-phase dry type transformers do not use liquid like oil for cooling and insulation. Instead, the windings are insulated using solid materials such as resin or varnish, and cooling is achieved through natural convection or forced air. They are typically used in indoor environments or where fire safety is a critical concern, such as in buildings, hospitals, and substations, as they pose less environmental risk and are fire-resistant.
Three Phase Shell Type Transformer
The three-phase shell type transformer has a core that surrounds most of the windings. The windings are placed on the central limb, and the core provides a protective shell around them. This construction offers better mechanical protection for the windings and superior cooling characteristics due to the larger surface area of the core exposed to the cooling medium. Shell type transformers are often favored for their robustness and efficiency in certain power applications.
Applications of 3 phase transformer
The applications of 3 phase isolation transformers are so many. Let’s take a look at a few of them to get a better understanding of their importance.
Since, a three phase transformer can further exempt any number of high-frequency noise, as well as pulse interference from the coupling of the one phase transformers. These are generally used with precision machine tools.
In addition to this, all three phase transformers are widely used in industries, mining, factories, production companies, textile, printing, packaging, airports, telecommunications, malls, multistory apartments, office equipment, and many more.
All the transmissions, as well as the distribution of the tunnels and equipment are secured to confirm the standard voltage.
In addition to providing all the benefits of three phase transformers, they are also great at offering the benefits of one phase transformers. This makes the range of the benefits of the three phase auto transformer wider.
FAQ
As one of the most professional 3 phase power transformer manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy cheap 3 phase power transformer for sale here from our factory.
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