There are some of the most basic types of magnetic core for transformers - rod, armor and toroidal. If we compare their functional characteristics and the range of applications, then a toroidal transformer will have a clear advantage.
Such a device has a wide range of applications in so many branches of modern industry. Among the main areas in which such a device as a toroidal transformer is involved, it is necessary to name voltage stabilizers, lighting equipment, radio engineering, UPS (uninterruptible power supply), diagnostic equipment, medical equipment.
It should be said about the functional characteristics of devices of this type. A toroidal transformer is a single-phase power step-up or step-down transformer having a toroidal core with more than two windings. By the principle of operation, it does not differ from models with rod or armor winding. Any transformer is, first of all, a device designed to convert electricity from one voltage value to another. However, the design features of such an electrical device as a toroidal transformer, if we talk about its core, can significantly reduce the weight and size of the electric machine. And, as a result, technical and economic characteristics and indicators will increase.
It is a small volume and weight that are one of the main characteristic features of devices such as toroidal transformers. Thanks to flexible free conclusions, the savings rate can reach a truly impressive value of sixty percent (in comparison with devices on lined cores). Moreover, a toroidal transformer is much easier to connect with the internal installation of electronic devices.
One of the most important characteristics of such electrical machines is the shape of the core. It is the ring shape that many consider almost ideal. The winding of the toroidal transformer will be much more economical, since due to the uniform symmetrical distribution over the surface of the core it will have a significantly shorter length. At the same time, the resistance of the winding will decrease, but the efficiency (efficiency) will increase.
The use of higher current densities is also an obvious advantage. This is possible because the winding is cooled throughout the core. Minimum losses in the iron provide a low magnetization current. It also increases the thermal load characteristics of an electrical device such as a toroidal transformer.
Such machines provide good energy savings. Under load, its performance reaches thirty percent, and eighty - at idle. It is such low scattering values that are another advantage of this type of device. This factor is extremely important when working with high sensitivity electrical circuits.