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The three phase power transformer is still the most widely used power transformer in the large-scale industrial applications, electrical power distribution networks in utility and critical electrical power infrastructure projects. It is very effective in bulk power transmission, power distribution, and is used across various manufacturing, mining, data centre and renewable energy applications. Three phase power transformers from Jiangsu Ryan Electric are built with the utmost engineering precision, automated manufacturing process and comprehensive testing to deliver tangible performance, reliability and cost benefits. The advantages of a quality three phase power transformer to your facility are actual.
Superior Efficiency for High-Power Applications
It is important to be efficient when moving large electrical loads from one point in a facility or electrical distribution system to another. The 3 phase transformer has a higher efficiency compared to a set of equivalent single phase transformers, partly because the use of optimised core and conductor materials means that the transformer has lower no load and load losses. The low loss amorphous or grain-oriented steel core and optimized winding geometry lower the eddy current and hysteresis losses of our power transformers and distribution transformers. This design precision is verified at our dual 35 kV and 110 kV CNAS accredited test bays, thus ensuring that every three-phase unit is capable of attaining efficiency standards that adhere to the most demanding IEEE, IEC and CSA standards. A 0.3% improvement in efficiency of the plant's three phase power transformer during the expected 20 year service life can be like a significant drop in energy consumption, and this will have a direct impact on the economy of your plant's operation.
Balanced Loading and Superior Power Quality
A three phase power transformer has a major advantage in that all the voltages and currents are balanced between the three phases (when symmetrical loading is applied). This balance reduces the negative-sequence current components which can lead to motor overheating and excess neutral currents and harmonic distortion. Balanced operation also reduces voltage regulation problems, providing power to sensitive equipment within acceptable limits. We ensure the tight impedance tolerances and symmetrical winding construction of our oil-immersed transformers and cast resin transformers, which helps to maintain a phase balance even under dynamic load. Our three phase power transformer, whether installed as a substation transformer for a utility connection or a pad-mounted transformer for a commercial building, provides clean, balanced power to better preserve and protect the equipment downstream and to improve overall system reliability.
Compact Footprint and Reduced Material Costs
A three phase power transformer is very compact and light in comparison to a bank of three single-phase transformers of the same rating. This compact design equates to reduced civil works costs, smaller switchgear rooms and simplified installation logistics. It also significantly lowers the unit cost of the materials in use (copper, steel and insulation per kVA of capacity) and may help to minimize the transformer's environmental impact. Ryan Electric offers units up to 10MVA (3-phase) and from 3.3 kV to 132 kV and spans the entire spectrum from dry type VPI transformers for indoor substations to fully enclosed unit substations for outdoor distribution. Our R&D team can modify the core configuration, cooling and enclosure ratings to maximise the size to performance ratio of your three phase power transformer to suit your site's specific requirements – as your power transformer will be required to fit where it is needed most.
Simplified Integration and Maintenance
In today's industrial systems, integration, monitoring and maintenance of equipment are critical. A three phase power transformer simplifies system design as a single, self-contained unit—reducing the complexity of protection and control schemes compared to multiple single-phase banks. The tap changers on our transformer designs are clearly marked, terminal boxes are easy to access and the powerful bushings are designed to make field connections and regular inspections an easy task. Each Ryan Electric transformer is tested before leaving our factory, with full routine, type and special tests, and backed by our certified quality management system, your transformer will be ready for immediate service and comply with UL, CE, ASTA and DEKRA standards. With project experience in over 80 countries and the trust of industry leaders such as Microsoft and State Grid, we understand the operational demands of your industry. Our three phase power transformers deliver world-class reliability and ease of use.
Whether in terms of efficiency, power quality, footprint, or maintenance, a high-performance three phase power transformer is essential for the success of a large-scale electrical installation. Combined with our joint-venture knowledge, cutting-edge manufacturing technology and approved testing capabilities, at Jiangsu Ryan Electric we create three phase transformers that are more powerful, more durable, more capable than the industry requires, every single day.