Any power transformer, voltage or current member of the primary winding, secondary winding (there may be several) and a ferromagnetic core, which performs the function of the magnetic wire. Three-phase transformers equipped with a voltage stabilizer with three phases, to withstand significant loads to the mains. High-voltage transformers are often transformers, but their main feature lies in the fact that they can cope with loads up to 110 kilovolts. Typically, three-phase transformers have a definite purpose: they either raise or lower the. In practical design of the transformer manufacturer chooses between two different basic concepts: a core, or armor.
However, any of these concepts does not affect the performance or reliability of the transformer, but there are significant differences in their manufacture. There are also Baluns three-phase transformers, which required the presence of three-phase mains supply and are designed for balancing the phase voltages in Mains 380 V (phase voltage imbalance elimination due to the unbalance of the load currents in phases, including the dynamic modes of operation), reducing the drag of zero sequence, creating a stable zero point, in many cases eliminate the need for a three-phase stabilizers .Moschnost transformatorVybor transformer is to determine their required number, type, rated voltage and power and groups and the wiring of the windings. If there are some stocks on the installed capacity of transformers, compared with the power optimization of the number of consumers included transformers can be difficult task. Power transformer must be 2 times greater than the rated amplifier power, or under heavy load on the network can cause an overload of the transformer due to the low frequencies. Rated power transformer must be chosen from the following series (in KVA): 0.010, 0.016, 0.025, 0.040, 0.063, 0.100, 0.160, 0.250, 0.400, 0.630, 1.000, 1.600, 2,500, 4,000. According to sep is permitted overloading of the transformer at 40% rated power for 6 hours a day for 5 days. Consequently, the power transformer must be at least 0.7 load capacity of the whole site. Choose the power transformer can be difficult.
