Three-phase systems have a greater transmission capacity and are therefore more efficient than single-phase systems. Image in the public domain, via Wikimedia Commons. The built-in Coils feature in COMSOL Multiphysics allows for flexible changing of coil configurations. Three-phase transformers can be constructed by winding three pairs of coils to a single ferromagnetic core in a number of different configurations. A common type of single-phase transformer is the E-core transformer. Such a transformer uses a single alternating current and relies on a single alternating voltage, and is called a single-phase transformer. Licensed under CC BY 3.0 DE, via Wikimedia Commons.įor AC power, this “stepping up” and “stepping down” can be done based on a surprisingly simple principle (thanks to Faraday) using a transformer, a succinct term for a device comprised of two coils and a piece of ferromagnetic material in its simplest form. Image by - Karlsruhe:Datei:Kändelweg NE.jpg, own work. While transmitting power over long distances, this is achieved by reducing the currents flowing through the transmission network by increasing the voltage prior to transmission and decreasing it at the receiving end, generally in a substation.Ī power station with three-phase transformers in Bruchsal, Germany. For maximizing the transmission efficiency, energy losses during transmission need to be minimized. The efficiency of electric power transmission from the source (such as a power generation plant) to the destination (such as the customer) is calculated by comparing the power generated and power received. Negligence in this regard would warrant penalties and could result in large mishaps. The safety and reliability of transformers depend largely on how well the design is able to dissipate its losses. ![]() Using the COMSOL Multiphysics® software, we can reliably compute the losses in the core, coils, and carpentry, as well as important lumped parameters like primary and secondary inductance. Though they offer significant advantages over single-phase transformers in terms of capacity, load balance, and efficiency, the computation of losses isn’t as straightforward. Three-phase power transformers are used in power grids worldwide for efficient electric power transmission.
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