The device and principle of operation of transformer

The Purpose and types of transformer.

The Transformer is a static electromagnetic device, in which converts the AC voltage transformation. Ie this machine allows you to lower or raise. Mounted on power transformers carry out long-distance electricity transmission at high voltages to 1150кВ. And directly in places of consumption is a decreasing voltage in the range of 127-660V. At such values usually are various electrical components that are installed at plants, factories and residential buildings. Electric measuring devices, electric welding and other elements in the circuit of the high voltage also requires the use of a transformer. They come in single and three - phase, two -, and multiple-winding.

There are several types of transformers, each of which is defined by its functions and purpose. The power transformer converts electrical energy in the networks, which are intended for use and reception of this energy. The current transformer is the measurement of large currents in the devices of electrical systems. The voltage transformer converts high voltage to low. Autotransformer electric and electromagnetic communication, due to the direct connection of the primary and secondary windings. The pulse transformer converts the pulse signals. An isolating transformer is characterized in that the primary and secondary windings are not connected to each other electrically. In brief, in all kinds of working principle of transformer is very similar. You can still select the torque Converter, the principle of which is to transfer torque to the transmission from the engine. This device allows you to steplessly change the rotational speed and torque.

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The device and the operating principle of a transformer.

Working Principle of a transformer is the manifestation of electromagnetic induction. This device consists of a magnetic core and two windings which are arranged on it. One is electricity and the second connecting consumers. As mentioned above, these windings are called primary and secondary, respectively. A magnetic core made of electrical steel sheet, the elements of which are insulated with varnish. Part of which includes the coil is called the core. And such construction was more widespread, as has a number of advantages – a simple winding insulation, ease of repair, good cooling conditions. As can be seen, the principle of operation of transformer is not so complicated.

There are transformers armor design that significantly reduces their size. Most often there are single-phase transformers. In such equipment, the side yoke play a protective role of the winding from mechanical damage. This is a very important factor, because small transformers have no casing and are located with other equipment in the common space. Three phase transformers are commonly made with three rods. Banisteria design is also used in transformers of high power. Even though it increases the cost of electricity, but allows to reduce the height of the magnetic circuit.

Transformers are Distinguished by way of connection rods: butt and laminated. In butt rods and yoke are collected separately and connected support parts. And the laminated sheets are overlapped. Laminated transformers are  received a greater application, because they have much higher mechanical strength.  

The Principle of operation of the transformer also depends on the windings that are cylindrical, circular and concentric. Equipment at high and medium powers have a gas relay.