First of all, it is necessary to understand that the magnitude of the current strength exceeding the safe threshold for human life is high, and such sources include power systems from one or more thousand volts. Installations and equipment that consume high voltage are generally low current, but this statement does not apply to power lines and power plants. Depending on specifications, current can range from a few milliamps to hundreds of amps.
In everyday life and industry, various devices are widely used that convert alternating high voltage to direct, increase or decrease the current supply in the network.
The most commonly used high voltage converter to lower values, due to the need to reduce energy costs and risks to life. The system of operation of the converter is quite simple. Electricity coming from the industrial supply network and having a high voltage passes through the rectifier unit, which converts it from alternating to direct current. Further through the windings of the transformerthere is a decrease to the values required in the operation of certain constituent elements of the electrical device. In this case, the same transformer allows you to get several values of electric current.
The high voltage transformer is a device that does not have any moving parts. Their use is due to the need to convert the magnitude of the alternating current from one to another, without changing the frequency characteristics. There are three main types of transformers used for this purpose: step-up and step-down, which transmit electricity with a constant current.
Relatively low current and high voltage are best for long distance power transmission, and the power consumption of various devices needs to be gradually reduced to the required level.
The main elements of transformers are the magnetic circuit, the cooling circuit and the winding.
The connected sets of plates are made of ferromagnetic materials and are magnetic cores. Their main purpose is to localize the main magnetic field. With a small transformer power, its efficiency is up to 96%, and with increased power it increases to 99%.
The cooling system of high voltage transformers requires the use of cooling systems to avoid overheating and destruction of power conversion and transmission elements. Mainly used oil cooling system, quite efficientdissipating heat.
The power consumption of household or industrial electrical appliances varies widely, for which transformers convert it through the secondary winding.
Electricity covers almost all spheres of human life, and you should not allow safety violations in handling electrical appliances, especially those using high voltage. This can be extremely detrimental to he alth, and a high-energy electric shock is often fatal.
